1991-11-12 16:50:47 +01:00
|
|
|
|
/* Target-dependent code for GDB, the GNU debugger.
|
1997-04-19 10:52:17 +02:00
|
|
|
|
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
Free Software Foundation, Inc.
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
This file is part of GDB.
|
|
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
|
along with this program; if not, write to the Free Software
|
1995-08-02 05:41:12 +02:00
|
|
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
|
#include "frame.h"
|
|
|
|
|
#include "inferior.h"
|
|
|
|
|
#include "symtab.h"
|
|
|
|
|
#include "target.h"
|
1993-03-26 20:55:57 +01:00
|
|
|
|
#include "gdbcore.h"
|
1995-08-13 00:50:04 +02:00
|
|
|
|
#include "symfile.h"
|
|
|
|
|
#include "objfiles.h"
|
1993-03-13 00:12:59 +01:00
|
|
|
|
#include "xcoffsolib.h"
|
|
|
|
|
|
1992-08-29 06:22:31 +02:00
|
|
|
|
extern struct obstack frame_cache_obstack;
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
extern int errno;
|
|
|
|
|
|
|
|
|
|
/* Nonzero if we just simulated a single step break. */
|
|
|
|
|
int one_stepped;
|
|
|
|
|
|
|
|
|
|
/* Breakpoint shadows for the single step instructions will be kept here. */
|
|
|
|
|
|
|
|
|
|
static struct sstep_breaks {
|
1993-03-26 20:55:57 +01:00
|
|
|
|
/* Address, or 0 if this is not in use. */
|
|
|
|
|
CORE_ADDR address;
|
|
|
|
|
/* Shadow contents. */
|
|
|
|
|
char data[4];
|
1991-11-12 16:50:47 +01:00
|
|
|
|
} stepBreaks[2];
|
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
/* Hook for determining the TOC address when calling functions in the
|
|
|
|
|
inferior under AIX. The initialization code in rs6000-nat.c sets
|
|
|
|
|
this hook to point to find_toc_address. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR)) = NULL;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
/* Static function prototypes */
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1995-10-16 00:23:01 +01:00
|
|
|
|
static CORE_ADDR branch_dest PARAMS ((int opcode, int instr, CORE_ADDR pc,
|
|
|
|
|
CORE_ADDR safety));
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1995-10-16 00:23:01 +01:00
|
|
|
|
static void frame_get_cache_fsr PARAMS ((struct frame_info *fi,
|
|
|
|
|
struct rs6000_framedata *fdatap));
|
|
|
|
|
|
1996-07-30 09:24:22 +02:00
|
|
|
|
static void pop_dummy_frame PARAMS ((void));
|
|
|
|
|
|
1995-10-16 00:23:01 +01:00
|
|
|
|
/* Calculate the destination of a branch/jump. Return -1 if not a branch. */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
static CORE_ADDR
|
1991-11-12 16:50:47 +01:00
|
|
|
|
branch_dest (opcode, instr, pc, safety)
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
int opcode;
|
|
|
|
|
int instr;
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
CORE_ADDR safety;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
CORE_ADDR dest;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
int immediate;
|
|
|
|
|
int absolute;
|
|
|
|
|
int ext_op;
|
|
|
|
|
|
|
|
|
|
absolute = (int) ((instr >> 1) & 1);
|
|
|
|
|
|
|
|
|
|
switch (opcode) {
|
|
|
|
|
case 18 :
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
immediate = ((instr & ~3) << 6) >> 6; /* br unconditional */
|
1995-03-02 22:51:30 +01:00
|
|
|
|
if (absolute)
|
|
|
|
|
dest = immediate;
|
|
|
|
|
else
|
|
|
|
|
dest = pc + immediate;
|
|
|
|
|
break;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
case 16 :
|
1995-03-02 22:51:30 +01:00
|
|
|
|
immediate = ((instr & ~3) << 16) >> 16; /* br conditional */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
if (absolute)
|
|
|
|
|
dest = immediate;
|
|
|
|
|
else
|
|
|
|
|
dest = pc + immediate;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 19 :
|
|
|
|
|
ext_op = (instr>>1) & 0x3ff;
|
|
|
|
|
|
|
|
|
|
if (ext_op == 16) /* br conditional register */
|
1997-09-23 09:10:51 +02:00
|
|
|
|
{
|
|
|
|
|
dest = read_register (LR_REGNUM) & ~3;
|
|
|
|
|
|
|
|
|
|
/* If we are about to return from a signal handler, dest is
|
|
|
|
|
something like 0x3c90. The current frame is a signal handler
|
|
|
|
|
caller frame, upon completion of the sigreturn system call
|
|
|
|
|
execution will return to the saved PC in the frame. */
|
|
|
|
|
if (dest < TEXT_SEGMENT_BASE)
|
|
|
|
|
{
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
|
|
|
|
|
fi = get_current_frame ();
|
|
|
|
|
if (fi != NULL)
|
|
|
|
|
dest = read_memory_integer (fi->frame + SIG_FRAME_PC_OFFSET,
|
|
|
|
|
4);
|
|
|
|
|
}
|
|
|
|
|
}
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
else if (ext_op == 528) /* br cond to count reg */
|
1993-04-26 18:44:03 +02:00
|
|
|
|
{
|
|
|
|
|
dest = read_register (CTR_REGNUM) & ~3;
|
|
|
|
|
|
|
|
|
|
/* If we are about to execute a system call, dest is something
|
|
|
|
|
like 0x22fc or 0x3b00. Upon completion the system call
|
|
|
|
|
will return to the address in the link register. */
|
|
|
|
|
if (dest < TEXT_SEGMENT_BASE)
|
|
|
|
|
dest = read_register (LR_REGNUM) & ~3;
|
|
|
|
|
}
|
1991-11-12 16:50:47 +01:00
|
|
|
|
else return -1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default: return -1;
|
|
|
|
|
}
|
1992-02-29 07:03:43 +01:00
|
|
|
|
return (dest < TEXT_SEGMENT_BASE) ? safety : dest;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* AIX does not support PT_STEP. Simulate it. */
|
|
|
|
|
|
1992-09-18 09:40:15 +02:00
|
|
|
|
void
|
1991-11-12 16:50:47 +01:00
|
|
|
|
single_step (signal)
|
1996-07-26 05:01:51 +02:00
|
|
|
|
enum target_signal signal;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
|
|
|
|
#define INSNLEN(OPCODE) 4
|
|
|
|
|
|
1995-06-06 16:49:32 +02:00
|
|
|
|
static char le_breakp[] = LITTLE_BREAKPOINT;
|
|
|
|
|
static char be_breakp[] = BIG_BREAKPOINT;
|
|
|
|
|
char *breakp = TARGET_BYTE_ORDER == BIG_ENDIAN ? be_breakp : le_breakp;
|
1993-03-26 20:55:57 +01:00
|
|
|
|
int ii, insn;
|
|
|
|
|
CORE_ADDR loc;
|
|
|
|
|
CORE_ADDR breaks[2];
|
|
|
|
|
int opcode;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
if (!one_stepped) {
|
|
|
|
|
loc = read_pc ();
|
|
|
|
|
|
1995-03-03 00:16:05 +01:00
|
|
|
|
insn = read_memory_integer (loc, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
breaks[0] = loc + INSNLEN(insn);
|
|
|
|
|
opcode = insn >> 26;
|
|
|
|
|
breaks[1] = branch_dest (opcode, insn, loc, breaks[0]);
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
/* Don't put two breakpoints on the same address. */
|
|
|
|
|
if (breaks[1] == breaks[0])
|
|
|
|
|
breaks[1] = -1;
|
|
|
|
|
|
1993-03-26 20:55:57 +01:00
|
|
|
|
stepBreaks[1].address = 0;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
for (ii=0; ii < 2; ++ii) {
|
|
|
|
|
|
|
|
|
|
/* ignore invalid breakpoint. */
|
|
|
|
|
if ( breaks[ii] == -1)
|
|
|
|
|
continue;
|
|
|
|
|
|
1993-03-26 20:55:57 +01:00
|
|
|
|
read_memory (breaks[ii], stepBreaks[ii].data, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1993-03-26 20:55:57 +01:00
|
|
|
|
write_memory (breaks[ii], breakp, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
stepBreaks[ii].address = breaks[ii];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
one_stepped = 1;
|
1992-09-18 09:40:15 +02:00
|
|
|
|
} else {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* remove step breakpoints. */
|
|
|
|
|
for (ii=0; ii < 2; ++ii)
|
1993-03-26 20:55:57 +01:00
|
|
|
|
if (stepBreaks[ii].address != 0)
|
1991-11-12 16:50:47 +01:00
|
|
|
|
write_memory
|
1993-03-26 20:55:57 +01:00
|
|
|
|
(stepBreaks[ii].address, stepBreaks[ii].data, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
one_stepped = 0;
|
|
|
|
|
}
|
1992-09-18 09:40:15 +02:00
|
|
|
|
errno = 0; /* FIXME, don't ignore errors! */
|
1993-03-26 20:55:57 +01:00
|
|
|
|
/* What errors? {read,write}_memory call error(). */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
/* return pc value after skipping a function prologue and also return
|
|
|
|
|
information about a function frame.
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
in struct rs6000_frameinfo fdata:
|
|
|
|
|
- frameless is TRUE, if function does not have a frame.
|
|
|
|
|
- nosavedpc is TRUE, if function does not save %pc value in its frame.
|
|
|
|
|
- offset is the number of bytes used in the frame to save registers.
|
|
|
|
|
- saved_gpr is the number of the first saved gpr.
|
|
|
|
|
- saved_fpr is the number of the first saved fpr.
|
|
|
|
|
- alloca_reg is the number of the register used for alloca() handling.
|
|
|
|
|
Otherwise -1.
|
|
|
|
|
- gpr_offset is the offset of the saved gprs
|
|
|
|
|
- fpr_offset is the offset of the saved fprs
|
|
|
|
|
- lr_offset is the offset of the saved lr
|
|
|
|
|
- cr_offset is the offset of the saved cr
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define SIGNED_SHORT(x) \
|
|
|
|
|
((sizeof (short) == 2) \
|
|
|
|
|
? ((int)(short)(x)) \
|
|
|
|
|
: ((int)((((x) & 0xffff) ^ 0x8000) - 0x8000)))
|
|
|
|
|
|
|
|
|
|
#define GET_SRC_REG(x) (((x) >> 21) & 0x1f)
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
skip_prologue (pc, fdata)
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
struct rs6000_framedata *fdata;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
1995-07-27 05:50:05 +02:00
|
|
|
|
CORE_ADDR orig_pc = pc;
|
1993-07-10 03:35:53 +02:00
|
|
|
|
char buf[4];
|
|
|
|
|
unsigned long op;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
long offset = 0;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
int lr_reg = 0;
|
|
|
|
|
int cr_reg = 0;
|
|
|
|
|
int reg;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
int framep = 0;
|
1995-08-13 00:50:04 +02:00
|
|
|
|
int minimal_toc_loaded = 0;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
static struct rs6000_framedata zero_frame;
|
|
|
|
|
|
|
|
|
|
*fdata = zero_frame;
|
|
|
|
|
fdata->saved_gpr = -1;
|
|
|
|
|
fdata->saved_fpr = -1;
|
|
|
|
|
fdata->alloca_reg = -1;
|
|
|
|
|
fdata->frameless = 1;
|
|
|
|
|
fdata->nosavedpc = 1;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1993-07-10 03:35:53 +02:00
|
|
|
|
if (target_read_memory (pc, buf, 4))
|
1991-11-12 16:50:47 +01:00
|
|
|
|
return pc; /* Can't access it -- assume no prologue. */
|
|
|
|
|
|
|
|
|
|
/* Assume that subsequent fetches can fail with low probability. */
|
1995-07-27 05:50:05 +02:00
|
|
|
|
pc -= 4;
|
|
|
|
|
for (;;)
|
|
|
|
|
{
|
|
|
|
|
pc += 4;
|
|
|
|
|
op = read_memory_integer (pc, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
if ((op & 0xfc1fffff) == 0x7c0802a6) { /* mflr Rx */
|
|
|
|
|
lr_reg = (op & 0x03e00000) | 0x90010000;
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xfc1fffff) == 0x7c000026) { /* mfcr Rx */
|
|
|
|
|
cr_reg = (op & 0x03e00000) | 0x90010000;
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xfc1f0000) == 0xd8010000) { /* stfd Rx,NUM(r1) */
|
|
|
|
|
reg = GET_SRC_REG (op);
|
|
|
|
|
if (fdata->saved_fpr == -1 || fdata->saved_fpr > reg) {
|
|
|
|
|
fdata->saved_fpr = reg;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->fpr_offset = SIGNED_SHORT (op) + offset;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
}
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if (((op & 0xfc1f0000) == 0xbc010000) || /* stm Rx, NUM(r1) */
|
|
|
|
|
((op & 0xfc1f0000) == 0x90010000 && /* st rx,NUM(r1), rx >= r13 */
|
|
|
|
|
(op & 0x03e00000) >= 0x01a00000)) {
|
|
|
|
|
|
|
|
|
|
reg = GET_SRC_REG (op);
|
|
|
|
|
if (fdata->saved_gpr == -1 || fdata->saved_gpr > reg) {
|
|
|
|
|
fdata->saved_gpr = reg;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->gpr_offset = SIGNED_SHORT (op) + offset;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
}
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xffff0000) == 0x3c000000) { /* addis 0,0,NUM, used for >= 32k frames */
|
|
|
|
|
fdata->offset = (op & 0x0000ffff) << 16;
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xffff0000) == 0x60000000) { /* ori 0,0,NUM, 2nd half of >= 32k frames */
|
|
|
|
|
fdata->offset |= (op & 0x0000ffff);
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xffff0000) == lr_reg) { /* st Rx,NUM(r1) where Rx == lr */
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->lr_offset = SIGNED_SHORT (op) + offset;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
fdata->nosavedpc = 0;
|
|
|
|
|
lr_reg = 0;
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xffff0000) == cr_reg) { /* st Rx,NUM(r1) where Rx == cr */
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->cr_offset = SIGNED_SHORT (op) + offset;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
cr_reg = 0;
|
|
|
|
|
continue;
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
} else if (op == 0x48000005) { /* bl .+4 used in -mrelocatable */
|
|
|
|
|
continue;
|
|
|
|
|
|
1995-08-13 00:50:04 +02:00
|
|
|
|
} else if (op == 0x48000004) { /* b .+4 (xlc) */
|
|
|
|
|
break;
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
} else if (((op & 0xffff0000) == 0x801e0000 || /* lwz 0,NUM(r30), used in V.4 -mrelocatable */
|
|
|
|
|
op == 0x7fc0f214) && /* add r30,r0,r30, used in V.4 -mrelocatable */
|
|
|
|
|
lr_reg == 0x901e0000) {
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
} else if ((op & 0xffff0000) == 0x3fc00000 || /* addis 30,0,foo@ha, used in V.4 -mminimal-toc */
|
|
|
|
|
(op & 0xffff0000) == 0x3bde0000) { /* addi 30,30,foo@l */
|
|
|
|
|
continue;
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
} else if ((op & 0xfc000000) == 0x48000000) { /* bl foo, to save fprs??? */
|
1995-07-30 10:45:15 +02:00
|
|
|
|
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-30 10:45:15 +02:00
|
|
|
|
/* Don't skip over the subroutine call if it is not within the first
|
|
|
|
|
three instructions of the prologue. */
|
|
|
|
|
if ((pc - orig_pc) > 8)
|
|
|
|
|
break;
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
op = read_memory_integer (pc+4, 4);
|
|
|
|
|
|
|
|
|
|
/* At this point, make sure this is not a trampoline function
|
|
|
|
|
(a function that simply calls another functions, and nothing else).
|
|
|
|
|
If the next is not a nop, this branch was part of the function
|
|
|
|
|
prologue. */
|
|
|
|
|
|
|
|
|
|
if (op == 0x4def7b82 || op == 0) /* crorc 15, 15, 15 */
|
1995-07-30 10:45:15 +02:00
|
|
|
|
break; /* don't skip over this branch */
|
1995-07-27 05:50:05 +02:00
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
/* update stack pointer */
|
1995-07-27 05:50:05 +02:00
|
|
|
|
} else if ((op & 0xffff0000) == 0x94210000) { /* stu r1,NUM(r1) */
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->offset = SIGNED_SHORT (op);
|
|
|
|
|
offset = fdata->offset;
|
|
|
|
|
continue;
|
1992-03-30 00:33:35 +02:00
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
} else if (op == 0x7c21016e) { /* stwux 1,1,0 */
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
offset = fdata->offset;
|
|
|
|
|
continue;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
/* Load up minimal toc pointer */
|
1995-08-13 00:50:04 +02:00
|
|
|
|
} else if ((op >> 22) == 0x20f
|
|
|
|
|
&& ! minimal_toc_loaded) { /* l r31,... or l r30,... */
|
|
|
|
|
minimal_toc_loaded = 1;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
continue;
|
Tue Nov 17 11:17:06 1992 Ian Lance Taylor (ian@cygnus.com)
* tm-rs6000.h (BELIEVE_PCC_PROMOTION): Define, since AIX cc gets
it right.
(aix_framedata): added nosavedpc field.
(SAVED_PC_AFTER_CALL): Don't try to optimize; just call
read_register.
(FRAMELESS_FUNCTION_INVOCATION): Pass second argument of 0.
(FRAME_SAVED_PC): If PC not saved, use SAVED_PC_AFTER_CALL.
* rs6000-tdep.c (skip_prologue): Handle gcc generated stfd
instructions as function_frame_info does. Expand special case of
st r31,-4(r1) to be st r31,NUM(r1), since gcc can generate offsets
other than -4.
(pop_frame): Add 4 rather than sizeof (int) to avoid host
dependence.
(function_frame_info): Set frameless if the function has no frame,
and set nosavedpc if the PC was not saved. Handle gcc generated
stfd 31,-4(31); st 31, -12(31) correctly.
(frameless_function_invocation): New second argument pcsaved; if 0
return whether the function has a frame, if 1 return whether the
function saved PC.
(frame_initial_stack_address): Correct typo: cache registers for
callee_fi, not for fi, (avoids reading garbage memory locations).
1992-11-17 22:46:17 +01:00
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
/* store parameters in stack */
|
|
|
|
|
} else if ((op & 0xfc1f0000) == 0x90010000 || /* st rx,NUM(r1) */
|
|
|
|
|
(op & 0xfc1f0000) == 0xd8010000 || /* stfd Rx,NUM(r1) */
|
|
|
|
|
(op & 0xfc1f0000) == 0xfc010000) { /* frsp, fp?,NUM(r1) */
|
|
|
|
|
continue;
|
1995-03-29 10:16:05 +02:00
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
/* store parameters in stack via frame pointer */
|
|
|
|
|
} else if (framep &&
|
1996-07-30 07:12:07 +02:00
|
|
|
|
((op & 0xfc1f0000) == 0x901f0000 || /* st rx,NUM(r1) */
|
1995-07-27 16:01:34 +02:00
|
|
|
|
(op & 0xfc1f0000) == 0xd81f0000 || /* stfd Rx,NUM(r1) */
|
1996-07-30 07:12:07 +02:00
|
|
|
|
(op & 0xfc1f0000) == 0xfc1f0000)) { /* frsp, fp?,NUM(r1) */
|
1995-07-27 16:01:34 +02:00
|
|
|
|
continue;
|
1995-03-29 10:16:05 +02:00
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
/* Set up frame pointer */
|
|
|
|
|
} else if (op == 0x603f0000 /* oril r31, r1, 0x0 */
|
|
|
|
|
|| op == 0x7c3f0b78) { /* mr r31, r1 */
|
1995-08-13 00:50:04 +02:00
|
|
|
|
fdata->frameless = 0;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
framep = 1;
|
1995-07-30 10:45:15 +02:00
|
|
|
|
fdata->alloca_reg = 31;
|
1995-07-27 16:01:34 +02:00
|
|
|
|
continue;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1995-08-13 00:50:04 +02:00
|
|
|
|
/* Another way to set up the frame pointer. */
|
|
|
|
|
} else if ((op & 0xfc1fffff) == 0x38010000) { /* addi rX, r1, 0x0 */
|
|
|
|
|
fdata->frameless = 0;
|
|
|
|
|
framep = 1;
|
|
|
|
|
fdata->alloca_reg = (op & ~0x38010000) >> 21;
|
|
|
|
|
continue;
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
} else {
|
|
|
|
|
break;
|
|
|
|
|
}
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
1995-07-27 05:50:05 +02:00
|
|
|
|
|
1992-03-13 02:42:25 +01:00
|
|
|
|
#if 0
|
|
|
|
|
/* I have problems with skipping over __main() that I need to address
|
|
|
|
|
* sometime. Previously, I used to use misc_function_vector which
|
|
|
|
|
* didn't work as well as I wanted to be. -MGO */
|
|
|
|
|
|
|
|
|
|
/* If the first thing after skipping a prolog is a branch to a function,
|
|
|
|
|
this might be a call to an initializer in main(), introduced by gcc2.
|
|
|
|
|
We'd like to skip over it as well. Fortunately, xlc does some extra
|
|
|
|
|
work before calling a function right after a prologue, thus we can
|
|
|
|
|
single out such gcc2 behaviour. */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if ((op & 0xfc000001) == 0x48000001) { /* bl foo, an initializer function? */
|
|
|
|
|
op = read_memory_integer (pc+4, 4);
|
|
|
|
|
|
|
|
|
|
if (op == 0x4def7b82) { /* cror 0xf, 0xf, 0xf (nop) */
|
|
|
|
|
|
|
|
|
|
/* check and see if we are in main. If so, skip over this initializer
|
|
|
|
|
function as well. */
|
|
|
|
|
|
|
|
|
|
tmp = find_pc_misc_function (pc);
|
* defs.h (STRCMP, STREQ, STREQN): New macros.
* defs.h (demangle_and_match): Remove prototype.
* dwarfread.c (STREQ, STREQN): Remove macros, replaced with STREQ
and STREQN defined in defs.h.
* dwarfread.c (set_cu_language): For completely unknown languages,
try to deduce the language from the filename. Retain behavior
that for known languages we don't know how to handle, we use
language_unknown.
* dwarfread.c (enum_type, symthesize_typedef): Initialize language
and demangled name fields in symbol.
* dwarfread.c, mipsread.c, partial-stab.h: For all usages of
ADD_PSYMBOL_TO_LIST, add language and objfile parameters.
* dwarfread.c (new_symbol): Attempt to demangle C++ symbol names
and cache the results in SYMBOL_DEMANGLED_NAME for the symbol.
* elfread.c (STREQ): Remove macro, use STREQ defined in defs.h.
Replace usages throughout.
* elfread.c (demangle.h): Include.
* elfread.c (record_minimal_symbol): Remove prototype and function.
* gdbtypes.h, symtab.h (B_SET, B_CLR, B_TST, B_TYPE, B_BYTES,
B_CLRALL): Moved from symtab.h to gdbtypes.h.
* infcmd.c (jump_command): Remove code to demangle name and add
it to a cleanup list. Now just use SYMBOL_DEMANGLED_NAME.
* minsyms.c (demangle.h): Include.
* minsyms.c (lookup_minimal_symbol): Indent comment to match code.
* minsyms.c (install_minimal_symbols): Attempt to demangle symbol
names as C++ names, and cache them in SYMBOL_DEMANGLED_NAME.
* mipsread.c (psymtab_language): Add static variable.
* stabsread.c (demangle.h): Include.
* stabsread.c (define_symbol): Attempt to demangle C++ symbol
names and cache them in the SYMBOL_DEMANGLED_NAME field.
* stack.c (return_command): Remove explicit demangling of name
and use of cleanups. Just use SYMBOL_DEMANGLED_NAME.
* symfile.c (demangle.h): Include.
* symfile.c (add_psymbol_to_list, add_psymbol_addr_to_list): Fix
to match macros in symfile.h and allow them to be compiled
if INLINE_ADD_PSYMBOL is not true.
* symfile.h (INLINE_ADD_PSYMBOL): Default to true if not set.
* symfile.h (ADD_PSYMBOL_*): Add language and objfile parameters.
Add code to demangle and cache C++ symbol names. Use macro form
if INLINE_ADD_PSYMBOL is true, otherwise use C function form.
* symmisc.c (add_psymbol_to_list, add_psymbol_addr_to_list):
Remove, also defined in symfile.c, which we already fixed.
* symtab.c (expensive_mangler): Remove prototype and function.
* symtab.c (find_methods): Remove physnames parameter and fix
prototype to match.
* symtab.c (completion_list_add_symbol): Name changed to
completion_list_add_name.
* symtab.c (COMPLETION_LIST_ADD_SYMBOL): New macro, adds both
the normal symbol name and the cached C++ demangled name.
* symtab.c (lookup_demangled_partial_symbol,
lookup_demangled_block_symbol): Remove prototypes and functions.
* symtab.c (lookup_symbol): Remove use of expensive_mangler,
use lookup_block_symbol instead of lookup_demangled_block_symbol.
Remove code to try demangling names and matching them.
* symtab.c (lookup_partial_symbol, lookup_block_symbol):
Fix to try matching the cached demangled name if no match is
found using the regular symbol name.
* symtab.c (find_methods): Remove unused physnames array.
* symtab.c (name_match, NAME_MATCH): Remove function and macro,
replaced with SYMBOL_MATCHES_REGEXP from symtab.h.
* symtab.c (completion_list_add_symbol): Rewrite to use cached
C++ demangled symbol names.
* symtab.h: Much reformatting of structures and such to add
whitespace to make them more readable, and make them more
consistent with other gdb structure definitions.
* symtab.h (general_symbol_info): New struct containing fields
common to all symbols.
* symtab.h (SYMBOL_LANGUAGE, SYMBOL_DEMANGLED_NAME,
SYMBOL_SOURCE_NAME, SYMBOL_LINKAGE_NAME, SYMBOL_MATCHES_NAME,
SYMBOL_MATCHES_REGEXP, MSYMBOL_INFO, MSYMBOL_TYPE): New macros.
* symtab. (struct minimal_symbol, struct partial_symbol, struct
symbol): Use general_symbol_info struct.
* utils.c (demangle_and_match): Remove, no longer used.
* valops.c (demangle.h): Include.
* xcoffexec.c (eq): Remove macro, replace usages with STREQ.
* blockframe.c, breakpoint.c, c-exp.y, c-valprint.c, dbxread.c,
infcmd.c, m2-exp.y, minsyms.c, objfiles.h, solib.c, stack.c,
symmisc.c, symtab.c, valops.c: Replace references to minimal
symbol fields with appropriate macros.
* breakpoint.c, buildsym.c, c-exp.y, c-typeprint.c, c-valprint.c,
coffread.c, command.c, convex-tdep.c, cp-valprint.c, dbxread.c,
demangle.c, elfread.c, energize.c, environ.c, exec.c,
gdbtypes.c, i960-tdep.c, infrun.c, infrun-hacked.c, language.c,
main.c, minsyms.c, mipsread.c, partial-stab.h, remote-es1800.c,
remote-nindy.c, remote-udi.c, rs6000-tdep.c, solib.c, source.c,
sparc-pinsn.c, stabsread.c, standalone.c, state.c, stuff.c,
symfile.c, symmisc.c, symtab.c, symtab.h, tm-sysv4.h,
tm-ultra3.h, values.c, xcoffexec.c, xcoffread.c: Replace strcmp
and strncmp usages with STREQ, STREQN, or STRCMP as appropriate.
* breakpoint.c, buildsym.c, c-typeprint.c, expprint.c, findvar.c,
mipsread.c, printcmd.c, source.c, stabsread.c, stack.c,
symmisc.c, tm-29k.h, valops.c, values.c: Replace SYMBOL_NAME
references with SYMBOL_SOURCE_NAME or SYMBOL_LINKAGE_NAME as
appropriate.
* buildsym.c (start_subfile, patch_subfile_names): Default the
source language to what can be deduced from the filename.
* buildsym.c (end_symtab): Update the source language in the
allocated symtab to match what we have been using.
* buildsym.h (struct subfile): Add a language field.
* c-typeprint.c (c_print_type): Remove code to do explicit
demangling.
* dbxread.c (psymtab_language): Add static variable.
* dbxread.c (start_psymtab): Initialize psymtab_language using
deduce_language_from_filename.
1992-12-23 07:34:57 +01:00
|
|
|
|
if (tmp >= 0 && STREQ (misc_function_vector [tmp].name, "main"))
|
1992-03-13 02:42:25 +01:00
|
|
|
|
return pc + 8;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif /* 0 */
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
fdata->offset = - fdata->offset;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
/*************************************************************************
|
|
|
|
|
Support for creating pushind a dummy frame into the stack, and popping
|
|
|
|
|
frames, etc.
|
|
|
|
|
*************************************************************************/
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
/* The total size of dummy frame is 436, which is;
|
|
|
|
|
|
|
|
|
|
32 gpr's - 128 bytes
|
|
|
|
|
32 fpr's - 256 "
|
|
|
|
|
7 the rest - 28 "
|
|
|
|
|
and 24 extra bytes for the callee's link area. The last 24 bytes
|
|
|
|
|
for the link area might not be necessary, since it will be taken
|
|
|
|
|
care of by push_arguments(). */
|
|
|
|
|
|
|
|
|
|
#define DUMMY_FRAME_SIZE 436
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
#define DUMMY_FRAME_ADDR_SIZE 10
|
|
|
|
|
|
|
|
|
|
/* Make sure you initialize these in somewhere, in case gdb gives up what it
|
1992-02-29 07:03:43 +01:00
|
|
|
|
was debugging and starts debugging something else. FIXMEibm */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
static int dummy_frame_count = 0;
|
|
|
|
|
static int dummy_frame_size = 0;
|
|
|
|
|
static CORE_ADDR *dummy_frame_addr = 0;
|
|
|
|
|
|
|
|
|
|
extern int stop_stack_dummy;
|
|
|
|
|
|
|
|
|
|
/* push a dummy frame into stack, save all register. Currently we are saving
|
|
|
|
|
only gpr's and fpr's, which is not good enough! FIXMEmgo */
|
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
void
|
1991-11-12 16:50:47 +01:00
|
|
|
|
push_dummy_frame ()
|
|
|
|
|
{
|
1993-03-31 01:06:29 +02:00
|
|
|
|
/* stack pointer. */
|
|
|
|
|
CORE_ADDR sp;
|
1995-03-03 00:16:05 +01:00
|
|
|
|
/* Same thing, target byte order. */
|
|
|
|
|
char sp_targ[4];
|
1993-03-31 01:06:29 +02:00
|
|
|
|
|
|
|
|
|
/* link register. */
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
/* Same thing, target byte order. */
|
|
|
|
|
char pc_targ[4];
|
|
|
|
|
|
1995-09-10 19:37:22 +02:00
|
|
|
|
/* Needed to figure out where to save the dummy link area.
|
|
|
|
|
FIXME: There should be an easier way to do this, no? tiemann 9/9/95. */
|
|
|
|
|
struct rs6000_framedata fdata;
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
int ii;
|
|
|
|
|
|
1992-09-19 14:08:23 +02:00
|
|
|
|
target_fetch_registers (-1);
|
1992-03-02 02:55:31 +01:00
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
if (dummy_frame_count >= dummy_frame_size) {
|
|
|
|
|
dummy_frame_size += DUMMY_FRAME_ADDR_SIZE;
|
|
|
|
|
if (dummy_frame_addr)
|
|
|
|
|
dummy_frame_addr = (CORE_ADDR*) xrealloc
|
|
|
|
|
(dummy_frame_addr, sizeof(CORE_ADDR) * (dummy_frame_size));
|
|
|
|
|
else
|
|
|
|
|
dummy_frame_addr = (CORE_ADDR*)
|
|
|
|
|
xmalloc (sizeof(CORE_ADDR) * (dummy_frame_size));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sp = read_register(SP_REGNUM);
|
1993-03-31 01:06:29 +02:00
|
|
|
|
pc = read_register(PC_REGNUM);
|
1995-03-03 22:47:14 +01:00
|
|
|
|
store_address (pc_targ, 4, pc);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1995-09-10 19:37:22 +02:00
|
|
|
|
(void) skip_prologue (get_pc_function_start (pc) + FUNCTION_START_OFFSET, &fdata);
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
dummy_frame_addr [dummy_frame_count++] = sp;
|
|
|
|
|
|
|
|
|
|
/* Be careful! If the stack pointer is not decremented first, then kernel
|
1992-03-02 02:55:31 +01:00
|
|
|
|
thinks he is free to use the space underneath it. And kernel actually
|
1991-11-12 16:50:47 +01:00
|
|
|
|
uses that area for IPC purposes when executing ptrace(2) calls. So
|
|
|
|
|
before writing register values into the new frame, decrement and update
|
|
|
|
|
%sp first in order to secure your frame. */
|
|
|
|
|
|
1995-09-10 19:37:22 +02:00
|
|
|
|
/* FIXME: We don't check if the stack really has this much space.
|
|
|
|
|
This is a problem on the ppc simulator (which only grants one page
|
|
|
|
|
(4096 bytes) by default. */
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
write_register (SP_REGNUM, sp-DUMMY_FRAME_SIZE);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* gdb relies on the state of current_frame. We'd better update it,
|
|
|
|
|
otherwise things like do_registers_info() wouldn't work properly! */
|
|
|
|
|
|
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
|
|
|
|
|
/* save program counter in link register's space. */
|
1995-09-23 15:30:04 +02:00
|
|
|
|
write_memory (sp + (fdata.lr_offset ? fdata.lr_offset : DEFAULT_LR_SAVE),
|
|
|
|
|
pc_targ, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1992-03-02 02:55:31 +01:00
|
|
|
|
/* save all floating point and general purpose registers here. */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* fpr's, f0..f31 */
|
|
|
|
|
for (ii = 0; ii < 32; ++ii)
|
|
|
|
|
write_memory (sp-8-(ii*8), ®isters[REGISTER_BYTE (31-ii+FP0_REGNUM)], 8);
|
|
|
|
|
|
|
|
|
|
/* gpr's r0..r31 */
|
|
|
|
|
for (ii=1; ii <=32; ++ii)
|
|
|
|
|
write_memory (sp-256-(ii*4), ®isters[REGISTER_BYTE (32-ii)], 4);
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
/* so far, 32*2 + 32 words = 384 bytes have been written.
|
|
|
|
|
7 extra registers in our register set: pc, ps, cnd, lr, cnt, xer, mq */
|
|
|
|
|
|
|
|
|
|
for (ii=1; ii <= (LAST_SP_REGNUM-FIRST_SP_REGNUM+1); ++ii) {
|
|
|
|
|
write_memory (sp-384-(ii*4),
|
|
|
|
|
®isters[REGISTER_BYTE (FPLAST_REGNUM + ii)], 4);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Save sp or so called back chain right here. */
|
1995-03-03 00:16:05 +01:00
|
|
|
|
store_address (sp_targ, 4, sp);
|
|
|
|
|
write_memory (sp-DUMMY_FRAME_SIZE, sp_targ, 4);
|
1992-02-29 07:03:43 +01:00
|
|
|
|
sp -= DUMMY_FRAME_SIZE;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* And finally, this is the back chain. */
|
1993-03-31 01:06:29 +02:00
|
|
|
|
write_memory (sp+8, pc_targ, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Pop a dummy frame.
|
|
|
|
|
|
|
|
|
|
In rs6000 when we push a dummy frame, we save all of the registers. This
|
|
|
|
|
is usually done before user calls a function explicitly.
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
After a dummy frame is pushed, some instructions are copied into stack,
|
|
|
|
|
and stack pointer is decremented even more. Since we don't have a frame
|
|
|
|
|
pointer to get back to the parent frame of the dummy, we start having
|
|
|
|
|
trouble poping it. Therefore, we keep a dummy frame stack, keeping
|
|
|
|
|
addresses of dummy frames as such. When poping happens and when we
|
|
|
|
|
detect that was a dummy frame, we pop it back to its parent by using
|
|
|
|
|
dummy frame stack (`dummy_frame_addr' array).
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
FIXME: This whole concept is broken. You should be able to detect
|
|
|
|
|
a dummy stack frame *on the user's stack itself*. When you do,
|
|
|
|
|
then you know the format of that stack frame -- including its
|
|
|
|
|
saved SP register! There should *not* be a separate stack in the
|
1992-08-29 06:22:31 +02:00
|
|
|
|
GDB process that keeps track of these dummy frames! -- gnu@cygnus.com Aug92
|
1991-11-12 16:50:47 +01:00
|
|
|
|
*/
|
|
|
|
|
|
1996-07-30 09:24:22 +02:00
|
|
|
|
static void
|
1991-11-12 16:50:47 +01:00
|
|
|
|
pop_dummy_frame ()
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR sp, pc;
|
|
|
|
|
int ii;
|
|
|
|
|
sp = dummy_frame_addr [--dummy_frame_count];
|
|
|
|
|
|
|
|
|
|
/* restore all fpr's. */
|
|
|
|
|
for (ii = 1; ii <= 32; ++ii)
|
|
|
|
|
read_memory (sp-(ii*8), ®isters[REGISTER_BYTE (32-ii+FP0_REGNUM)], 8);
|
|
|
|
|
|
|
|
|
|
/* restore all gpr's */
|
|
|
|
|
for (ii=1; ii <= 32; ++ii) {
|
|
|
|
|
read_memory (sp-256-(ii*4), ®isters[REGISTER_BYTE (32-ii)], 4);
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-29 07:03:43 +01:00
|
|
|
|
/* restore the rest of the registers. */
|
|
|
|
|
for (ii=1; ii <=(LAST_SP_REGNUM-FIRST_SP_REGNUM+1); ++ii)
|
|
|
|
|
read_memory (sp-384-(ii*4),
|
|
|
|
|
®isters[REGISTER_BYTE (FPLAST_REGNUM + ii)], 4);
|
|
|
|
|
|
|
|
|
|
read_memory (sp-(DUMMY_FRAME_SIZE-8),
|
1995-09-10 19:37:22 +02:00
|
|
|
|
®isters [REGISTER_BYTE(PC_REGNUM)], 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* when a dummy frame was being pushed, we had to decrement %sp first, in
|
|
|
|
|
order to secure astack space. Thus, saved %sp (or %r1) value, is not the
|
|
|
|
|
one we should restore. Change it with the one we need. */
|
|
|
|
|
|
|
|
|
|
*(int*)®isters [REGISTER_BYTE(FP_REGNUM)] = sp;
|
|
|
|
|
|
|
|
|
|
/* Now we can restore all registers. */
|
|
|
|
|
|
1992-09-19 14:08:23 +02:00
|
|
|
|
target_store_registers (-1);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
pc = read_pc ();
|
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* pop the innermost frame, go back to the caller. */
|
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
void
|
1991-11-12 16:50:47 +01:00
|
|
|
|
pop_frame ()
|
|
|
|
|
{
|
1993-03-31 01:06:29 +02:00
|
|
|
|
CORE_ADDR pc, lr, sp, prev_sp; /* %pc, %lr, %sp */
|
1995-07-25 16:46:12 +02:00
|
|
|
|
struct rs6000_framedata fdata;
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
struct frame_info *frame = get_current_frame ();
|
1991-11-12 16:50:47 +01:00
|
|
|
|
int addr, ii;
|
|
|
|
|
|
|
|
|
|
pc = read_pc ();
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
sp = FRAME_FP (frame);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
if (stop_stack_dummy && dummy_frame_count) {
|
|
|
|
|
pop_dummy_frame ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
/* Make sure that all registers are valid. */
|
|
|
|
|
read_register_bytes (0, NULL, REGISTER_BYTES);
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
/* figure out previous %pc value. If the function is frameless, it is
|
|
|
|
|
still in the link register, otherwise walk the frames and retrieve the
|
|
|
|
|
saved %pc value in the previous frame. */
|
|
|
|
|
|
1994-11-04 19:55:51 +01:00
|
|
|
|
addr = get_pc_function_start (frame->pc) + FUNCTION_START_OFFSET;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
(void) skip_prologue (addr, &fdata);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1992-03-02 02:55:31 +01:00
|
|
|
|
if (fdata.frameless)
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
prev_sp = sp;
|
|
|
|
|
else
|
|
|
|
|
prev_sp = read_memory_integer (sp, 4);
|
1995-07-27 05:50:05 +02:00
|
|
|
|
if (fdata.lr_offset == 0)
|
1991-11-12 16:50:47 +01:00
|
|
|
|
lr = read_register (LR_REGNUM);
|
|
|
|
|
else
|
1995-07-27 05:50:05 +02:00
|
|
|
|
lr = read_memory_integer (prev_sp + fdata.lr_offset, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* reset %pc value. */
|
|
|
|
|
write_register (PC_REGNUM, lr);
|
|
|
|
|
|
|
|
|
|
/* reset register values if any was saved earlier. */
|
1992-03-02 02:55:31 +01:00
|
|
|
|
addr = prev_sp - fdata.offset;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1992-03-02 02:55:31 +01:00
|
|
|
|
if (fdata.saved_gpr != -1)
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
for (ii = fdata.saved_gpr; ii <= 31; ++ii) {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
read_memory (addr, ®isters [REGISTER_BYTE (ii)], 4);
|
Tue Nov 17 11:17:06 1992 Ian Lance Taylor (ian@cygnus.com)
* tm-rs6000.h (BELIEVE_PCC_PROMOTION): Define, since AIX cc gets
it right.
(aix_framedata): added nosavedpc field.
(SAVED_PC_AFTER_CALL): Don't try to optimize; just call
read_register.
(FRAMELESS_FUNCTION_INVOCATION): Pass second argument of 0.
(FRAME_SAVED_PC): If PC not saved, use SAVED_PC_AFTER_CALL.
* rs6000-tdep.c (skip_prologue): Handle gcc generated stfd
instructions as function_frame_info does. Expand special case of
st r31,-4(r1) to be st r31,NUM(r1), since gcc can generate offsets
other than -4.
(pop_frame): Add 4 rather than sizeof (int) to avoid host
dependence.
(function_frame_info): Set frameless if the function has no frame,
and set nosavedpc if the PC was not saved. Handle gcc generated
stfd 31,-4(31); st 31, -12(31) correctly.
(frameless_function_invocation): New second argument pcsaved; if 0
return whether the function has a frame, if 1 return whether the
function saved PC.
(frame_initial_stack_address): Correct typo: cache registers for
callee_fi, not for fi, (avoids reading garbage memory locations).
1992-11-17 22:46:17 +01:00
|
|
|
|
addr += 4;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
|
1992-03-02 02:55:31 +01:00
|
|
|
|
if (fdata.saved_fpr != -1)
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
for (ii = fdata.saved_fpr; ii <= 31; ++ii) {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
read_memory (addr, ®isters [REGISTER_BYTE (ii+FP0_REGNUM)], 8);
|
|
|
|
|
addr += 8;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
write_register (SP_REGNUM, prev_sp);
|
1992-09-19 14:08:23 +02:00
|
|
|
|
target_store_registers (-1);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* fixup the call sequence of a dummy function, with the real function address.
|
|
|
|
|
its argumets will be passed by gdb. */
|
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
void
|
1996-08-17 02:57:52 +02:00
|
|
|
|
rs6000_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
|
1995-10-16 00:23:01 +01:00
|
|
|
|
char *dummyname;
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
CORE_ADDR fun;
|
1996-08-17 02:57:52 +02:00
|
|
|
|
int nargs;
|
|
|
|
|
value_ptr *args;
|
|
|
|
|
struct type *type;
|
|
|
|
|
int gcc_p;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
|
|
|
|
#define TOC_ADDR_OFFSET 20
|
|
|
|
|
#define TARGET_ADDR_OFFSET 28
|
|
|
|
|
|
|
|
|
|
int ii;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
CORE_ADDR target_addr;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
if (find_toc_address_hook != NULL)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR tocvalue;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
tocvalue = (*find_toc_address_hook) (fun);
|
|
|
|
|
ii = *(int*)((char*)dummyname + TOC_ADDR_OFFSET);
|
|
|
|
|
ii = (ii & 0xffff0000) | (tocvalue >> 16);
|
|
|
|
|
*(int*)((char*)dummyname + TOC_ADDR_OFFSET) = ii;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
ii = *(int*)((char*)dummyname + TOC_ADDR_OFFSET+4);
|
|
|
|
|
ii = (ii & 0xffff0000) | (tocvalue & 0x0000ffff);
|
|
|
|
|
*(int*)((char*)dummyname + TOC_ADDR_OFFSET+4) = ii;
|
|
|
|
|
}
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
* infrun.c (wait_for_inferior): Add the symbols for any
newly loaded objects upon a TARGET_WAITKIND_LOADED event.
Rewrite code which determines the TOC address for calling functions
in the inferior under AIX.
* rs6000-nat.c (find_toc_address): New function to determine
the required TOC address from a function address.
(_initialize_core_rs6000): Set up find_toc_address_hook to point
to find_toc_address.
(xcoff_relocate_symtab, xcoff_relocate_core): Remove
add_text_to_loadinfo calls.
(exec_one_dummy_insn): Change pid and status to int to get rid of
compiler warnings.
(xcoff_relocate_symtab): Cast ldi to `int *' when passing it to
ptrace to get rid of compiler warnings.
* rs6000-tdep.c: Add definition for find_toc_address_hook.
(rs6000_fix_call_dummy): If find_toc_address_hook is non zero,
patch TOC address load code in the call dummy with the value
returned from find_toc_address_hook.
(struct loadinfo, loadinfo, loadinfolen,
loadinfotextindex, xcoff_init_loadinfo, free_loadinfo,
xcoff_add_toc_to_loadinfo, add_text_to_loadinfo, find_toc_address):
Remove.
(_initialize_rs6000_tdep): Remove initialization of
coff_add_toc_to_loadinfo_hook and xcoff_init_loadinfo_hook.
* xcoffread.c (coff_add_toc_to_loadinfo_hook,
xcoff_init_loadinfo_hook): Remove.
(struct coff_symfile_info): Add toc_offset field.
(scan_xcoff_symtab): Record toc_offset value in toc_offset field
instead of calling xcoff_add_toc_to_loadinfo_hook.
(get_toc_offset): New function to return the value of the
toc_offset field for an object file.
(xcoff_initial_scan): Remove call of xcoff_init_loadinfo_hook.
* xcoffsolib.h (add_text_to_loadinfo): Remove declaration.
* config/rs6000/tm-rs6000.h: Add declarations for
find_toc_address_hook and get_toc_offset.
1997-08-15 23:10:32 +02:00
|
|
|
|
target_addr = fun;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
ii = *(int*)((char*)dummyname + TARGET_ADDR_OFFSET);
|
|
|
|
|
ii = (ii & 0xffff0000) | (target_addr >> 16);
|
|
|
|
|
*(int*)((char*)dummyname + TARGET_ADDR_OFFSET) = ii;
|
|
|
|
|
|
|
|
|
|
ii = *(int*)((char*)dummyname + TARGET_ADDR_OFFSET+4);
|
|
|
|
|
ii = (ii & 0xffff0000) | (target_addr & 0x0000ffff);
|
|
|
|
|
*(int*)((char*)dummyname + TARGET_ADDR_OFFSET+4) = ii;
|
|
|
|
|
}
|
|
|
|
|
|
1995-10-16 00:23:01 +01:00
|
|
|
|
/* Pass the arguments in either registers, or in the stack. In RS6000,
|
|
|
|
|
the first eight words of the argument list (that might be less than
|
|
|
|
|
eight parameters if some parameters occupy more than one word) are
|
|
|
|
|
passed in r3..r11 registers. float and double parameters are
|
|
|
|
|
passed in fpr's, in addition to that. Rest of the parameters if any
|
|
|
|
|
are passed in user stack. There might be cases in which half of the
|
|
|
|
|
parameter is copied into registers, the other half is pushed into
|
1991-11-12 16:50:47 +01:00
|
|
|
|
stack.
|
|
|
|
|
|
|
|
|
|
If the function is returning a structure, then the return address is passed
|
1996-08-25 09:17:22 +02:00
|
|
|
|
in r3, then the first 7 words of the parameters can be passed in registers,
|
1991-11-12 16:50:47 +01:00
|
|
|
|
starting from r4. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
push_arguments (nargs, args, sp, struct_return, struct_addr)
|
1995-10-16 00:23:01 +01:00
|
|
|
|
int nargs;
|
|
|
|
|
value_ptr *args;
|
|
|
|
|
CORE_ADDR sp;
|
|
|
|
|
int struct_return;
|
|
|
|
|
CORE_ADDR struct_addr;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
1996-07-30 09:24:22 +02:00
|
|
|
|
int ii;
|
|
|
|
|
int len = 0;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
int argno; /* current argument number */
|
|
|
|
|
int argbytes; /* current argument byte */
|
|
|
|
|
char tmp_buffer [50];
|
|
|
|
|
int f_argno = 0; /* current floating point argno */
|
1996-07-30 09:24:22 +02:00
|
|
|
|
value_ptr arg = 0;
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
struct type *type;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1996-07-30 09:24:22 +02:00
|
|
|
|
CORE_ADDR saved_sp;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
if ( dummy_frame_count <= 0)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("FATAL ERROR -push_arguments()! frame not found!!\n");
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* The first eight words of ther arguments are passed in registers. Copy
|
|
|
|
|
them appropriately.
|
|
|
|
|
|
|
|
|
|
If the function is returning a `struct', then the first word (which
|
|
|
|
|
will be passed in r3) is used for struct return address. In that
|
|
|
|
|
case we should advance one word and start from r4 register to copy
|
|
|
|
|
parameters. */
|
|
|
|
|
|
|
|
|
|
ii = struct_return ? 1 : 0;
|
|
|
|
|
|
|
|
|
|
for (argno=0, argbytes=0; argno < nargs && ii<8; ++ii) {
|
|
|
|
|
|
1995-02-12 19:51:42 +01:00
|
|
|
|
arg = args[argno];
|
1995-12-01 13:21:03 +01:00
|
|
|
|
type = check_typedef (VALUE_TYPE (arg));
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
len = TYPE_LENGTH (type);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_FLT) {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
/* floating point arguments are passed in fpr's, as well as gpr's.
|
|
|
|
|
There are 13 fpr's reserved for passing parameters. At this point
|
|
|
|
|
there is no way we would run out of them. */
|
|
|
|
|
|
|
|
|
|
if (len > 8)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered (
|
1991-11-12 16:50:47 +01:00
|
|
|
|
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)], VALUE_CONTENTS (arg),
|
|
|
|
|
len);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
++f_argno;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (len > 4) {
|
|
|
|
|
|
|
|
|
|
/* Argument takes more than one register. */
|
|
|
|
|
while (argbytes < len) {
|
|
|
|
|
|
|
|
|
|
*(int*)®isters[REGISTER_BYTE(ii+3)] = 0;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE(ii+3)],
|
|
|
|
|
((char*)VALUE_CONTENTS (arg))+argbytes,
|
1991-11-12 16:50:47 +01:00
|
|
|
|
(len - argbytes) > 4 ? 4 : len - argbytes);
|
|
|
|
|
++ii, argbytes += 4;
|
|
|
|
|
|
|
|
|
|
if (ii >= 8)
|
|
|
|
|
goto ran_out_of_registers_for_arguments;
|
|
|
|
|
}
|
|
|
|
|
argbytes = 0;
|
|
|
|
|
--ii;
|
|
|
|
|
}
|
|
|
|
|
else { /* Argument can fit in one register. No problem. */
|
|
|
|
|
*(int*)®isters[REGISTER_BYTE(ii+3)] = 0;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE(ii+3)], VALUE_CONTENTS (arg), len);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
++argno;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ran_out_of_registers_for_arguments:
|
|
|
|
|
|
|
|
|
|
/* location for 8 parameters are always reserved. */
|
|
|
|
|
sp -= 4 * 8;
|
|
|
|
|
|
|
|
|
|
/* another six words for back chain, TOC register, link register, etc. */
|
|
|
|
|
sp -= 24;
|
|
|
|
|
|
|
|
|
|
/* if there are more arguments, allocate space for them in
|
|
|
|
|
the stack, then push them starting from the ninth one. */
|
|
|
|
|
|
|
|
|
|
if ((argno < nargs) || argbytes) {
|
|
|
|
|
int space = 0, jj;
|
|
|
|
|
|
|
|
|
|
if (argbytes) {
|
|
|
|
|
space += ((len - argbytes + 3) & -4);
|
|
|
|
|
jj = argno + 1;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
jj = argno;
|
|
|
|
|
|
|
|
|
|
for (; jj < nargs; ++jj) {
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
value_ptr val = args[jj];
|
1991-11-12 16:50:47 +01:00
|
|
|
|
space += ((TYPE_LENGTH (VALUE_TYPE (val))) + 3) & -4;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* add location required for the rest of the parameters */
|
|
|
|
|
space = (space + 7) & -8;
|
|
|
|
|
sp -= space;
|
|
|
|
|
|
|
|
|
|
/* This is another instance we need to be concerned about securing our
|
|
|
|
|
stack space. If we write anything underneath %sp (r1), we might conflict
|
|
|
|
|
with the kernel who thinks he is free to use this area. So, update %sp
|
|
|
|
|
first before doing anything else. */
|
|
|
|
|
|
|
|
|
|
write_register (SP_REGNUM, sp);
|
|
|
|
|
|
|
|
|
|
/* if the last argument copied into the registers didn't fit there
|
|
|
|
|
completely, push the rest of it into stack. */
|
|
|
|
|
|
|
|
|
|
if (argbytes) {
|
|
|
|
|
write_memory (
|
|
|
|
|
sp+24+(ii*4), ((char*)VALUE_CONTENTS (arg))+argbytes, len - argbytes);
|
|
|
|
|
++argno;
|
|
|
|
|
ii += ((len - argbytes + 3) & -4) / 4;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* push the rest of the arguments into stack. */
|
|
|
|
|
for (; argno < nargs; ++argno) {
|
|
|
|
|
|
1995-02-12 19:51:42 +01:00
|
|
|
|
arg = args[argno];
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
type = check_typedef (VALUE_TYPE (arg));
|
|
|
|
|
len = TYPE_LENGTH (type);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* float types should be passed in fpr's, as well as in the stack. */
|
* alpha-tdep.c, c-exp.y, h8500-tdep.c, f-exp.y, f-valprint.c,
findvar.c, hppa-tdep.c, infcmd.c, language.c, printcmd.c,
rs6000-tdep.c, symmisc.c, symtab.c:
Add check_typedef/CHECK_TYPEDEF as needed.
1995-11-30 02:43:37 +01:00
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_FLT && f_argno < 13) {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
if (len > 8)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered (
|
1991-11-12 16:50:47 +01:00
|
|
|
|
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)], VALUE_CONTENTS (arg),
|
|
|
|
|
len);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
++f_argno;
|
|
|
|
|
}
|
|
|
|
|
|
1993-03-31 01:06:29 +02:00
|
|
|
|
write_memory (sp+24+(ii*4), (char *) VALUE_CONTENTS (arg), len);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
ii += ((len + 3) & -4) / 4;
|
|
|
|
|
}
|
|
|
|
|
}
|
1992-03-02 02:55:31 +01:00
|
|
|
|
else
|
1991-11-12 16:50:47 +01:00
|
|
|
|
/* Secure stack areas first, before doing anything else. */
|
|
|
|
|
write_register (SP_REGNUM, sp);
|
|
|
|
|
|
|
|
|
|
saved_sp = dummy_frame_addr [dummy_frame_count - 1];
|
|
|
|
|
read_memory (saved_sp, tmp_buffer, 24);
|
|
|
|
|
write_memory (sp, tmp_buffer, 24);
|
|
|
|
|
|
1995-03-03 00:16:05 +01:00
|
|
|
|
/* set back chain properly */
|
|
|
|
|
store_address (tmp_buffer, 4, saved_sp);
|
|
|
|
|
write_memory (sp, tmp_buffer, 4);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
1992-09-19 14:08:23 +02:00
|
|
|
|
target_store_registers (-1);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
return sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* a given return value in `regbuf' with a type `valtype', extract and copy its
|
|
|
|
|
value into `valbuf' */
|
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
void
|
1991-11-12 16:50:47 +01:00
|
|
|
|
extract_return_value (valtype, regbuf, valbuf)
|
1995-10-16 00:23:01 +01:00
|
|
|
|
struct type *valtype;
|
|
|
|
|
char regbuf[REGISTER_BYTES];
|
|
|
|
|
char *valbuf;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
1995-08-12 12:21:12 +02:00
|
|
|
|
int offset = 0;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
if (TYPE_CODE (valtype) == TYPE_CODE_FLT) {
|
|
|
|
|
|
|
|
|
|
double dd; float ff;
|
|
|
|
|
/* floats and doubles are returned in fpr1. fpr's have a size of 8 bytes.
|
|
|
|
|
We need to truncate the return value into float size (4 byte) if
|
|
|
|
|
necessary. */
|
|
|
|
|
|
|
|
|
|
if (TYPE_LENGTH (valtype) > 4) /* this is a double */
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (valbuf, ®buf[REGISTER_BYTE (FP0_REGNUM + 1)],
|
1991-11-12 16:50:47 +01:00
|
|
|
|
TYPE_LENGTH (valtype));
|
|
|
|
|
else { /* float */
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (&dd, ®buf[REGISTER_BYTE (FP0_REGNUM + 1)], 8);
|
1991-11-12 16:50:47 +01:00
|
|
|
|
ff = (float)dd;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (valbuf, &ff, sizeof(float));
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
1995-08-12 12:21:12 +02:00
|
|
|
|
else {
|
1991-11-12 16:50:47 +01:00
|
|
|
|
/* return value is copied starting from r3. */
|
1995-08-12 12:21:12 +02:00
|
|
|
|
if (TARGET_BYTE_ORDER == BIG_ENDIAN
|
|
|
|
|
&& TYPE_LENGTH (valtype) < REGISTER_RAW_SIZE (3))
|
|
|
|
|
offset = REGISTER_RAW_SIZE (3) - TYPE_LENGTH (valtype);
|
|
|
|
|
|
|
|
|
|
memcpy (valbuf, regbuf + REGISTER_BYTE (3) + offset,
|
|
|
|
|
TYPE_LENGTH (valtype));
|
|
|
|
|
}
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
/* keep structure return address in this variable.
|
|
|
|
|
FIXME: This is a horrid kludge which should not be allowed to continue
|
|
|
|
|
living. This only allows a single nested call to a structure-returning
|
|
|
|
|
function. Come on, guys! -- gnu@cygnus.com, Aug 92 */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
CORE_ADDR rs6000_struct_return_address;
|
|
|
|
|
|
|
|
|
|
|
1992-03-28 00:56:15 +01:00
|
|
|
|
/* Indirect function calls use a piece of trampoline code to do context
|
|
|
|
|
switching, i.e. to set the new TOC table. Skip such code if we are on
|
|
|
|
|
its first instruction (as when we have single-stepped to here).
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
Also skip shared library trampoline code (which is different from
|
|
|
|
|
indirect function call trampolines).
|
1992-03-28 00:56:15 +01:00
|
|
|
|
Result is desired PC to step until, or NULL if we are not in
|
|
|
|
|
trampoline code. */
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
CORE_ADDR
|
1991-11-12 16:50:47 +01:00
|
|
|
|
skip_trampoline_code (pc)
|
1995-10-16 00:23:01 +01:00
|
|
|
|
CORE_ADDR pc;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
{
|
|
|
|
|
register unsigned int ii, op;
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
CORE_ADDR solib_target_pc;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
|
|
|
|
|
static unsigned trampoline_code[] = {
|
|
|
|
|
0x800b0000, /* l r0,0x0(r11) */
|
|
|
|
|
0x90410014, /* st r2,0x14(r1) */
|
|
|
|
|
0x7c0903a6, /* mtctr r0 */
|
|
|
|
|
0x804b0004, /* l r2,0x4(r11) */
|
|
|
|
|
0x816b0008, /* l r11,0x8(r11) */
|
|
|
|
|
0x4e800420, /* bctr */
|
|
|
|
|
0x4e800020, /* br */
|
|
|
|
|
0
|
|
|
|
|
};
|
|
|
|
|
|
* eval.c (evaluate_subexp): Make fnptr a LONGEST instead
of using longest_to_int.
* infcmd.c (run_stack_dummy): Reinstate set_current_frame call,
mips and alpha targets need the real breakpoint pc for
creating the breakpoint frame.
* stack.c (return_command): Cast return value to the return
type of the function from which we return.
* values.c (set_return_value): Pass VALUE_CONTENTS unmodified
to STORE_RETURN_VALUE.
* symtab.c (lookup_symbol): Remove search for `static mangled
symbols', the search for `static symbols' already looks for
mangled and demangled symbols via lookup_block_symbol.
* valarith.c (value_binop): Use ANSI C arithmetic conversions
when performing integral evaluations, implement BINOP_EQUAL and
BINOP_LESS.
(value_equal, value_less): Use value_binop to perform the
comparison if both operands have TYPE_CODE_INT.
* rs6000-tdep.c (pop_frame): Make sure all registers are valid,
as they are written back later. Handle sp restore for frameless
functions. Use fdata.nosavedpc instead of fdata.frameless to
determine if the pc has been saved.
(function_frame_info): Handle `mr r31,r1', which is generated by
gcc-2.6, as a synonym for `oril r31,r1,0'.
(skip_trampoline_code): Handle shared library trampolines.
* xcoffread.c (read_xcoff_symtabs): Record XMC_GL symbols with
their real name. Enables setting of breakpoints in shared libraries
before the executable is run.
1994-10-15 11:50:07 +01:00
|
|
|
|
/* If pc is in a shared library trampoline, return its target. */
|
|
|
|
|
solib_target_pc = find_solib_trampoline_target (pc);
|
|
|
|
|
if (solib_target_pc)
|
|
|
|
|
return solib_target_pc;
|
|
|
|
|
|
1991-11-12 16:50:47 +01:00
|
|
|
|
for (ii=0; trampoline_code[ii]; ++ii) {
|
|
|
|
|
op = read_memory_integer (pc + (ii*4), 4);
|
|
|
|
|
if (op != trampoline_code [ii])
|
1993-03-31 01:06:29 +02:00
|
|
|
|
return 0;
|
1991-11-12 16:50:47 +01:00
|
|
|
|
}
|
|
|
|
|
ii = read_register (11); /* r11 holds destination addr */
|
|
|
|
|
pc = read_memory_integer (ii, 4); /* (r11) value */
|
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
/* Determines whether the function FI has a frame on the stack or not. */
|
1995-10-16 00:23:01 +01:00
|
|
|
|
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
int
|
1995-07-27 05:50:05 +02:00
|
|
|
|
frameless_function_invocation (fi)
|
|
|
|
|
struct frame_info *fi;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
{
|
|
|
|
|
CORE_ADDR func_start;
|
1995-07-25 16:46:12 +02:00
|
|
|
|
struct rs6000_framedata fdata;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1997-05-15 17:01:54 +02:00
|
|
|
|
/* Don't even think about framelessness except on the innermost frame
|
|
|
|
|
or if the function was interrupted by a signal. */
|
|
|
|
|
if (fi->next != NULL && !fi->next->signal_handler_caller)
|
1993-04-02 22:28:52 +02:00
|
|
|
|
return 0;
|
|
|
|
|
|
1997-05-15 17:01:54 +02:00
|
|
|
|
func_start = get_pc_function_start (fi->pc);
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
/* If we failed to find the start of the function, it is a mistake
|
|
|
|
|
to inspect the instructions. */
|
|
|
|
|
|
|
|
|
|
if (!func_start)
|
1997-05-15 17:01:54 +02:00
|
|
|
|
{
|
|
|
|
|
/* A frame with a zero PC is usually created by dereferencing a NULL
|
|
|
|
|
function pointer, normally causing an immediate core dump of the
|
|
|
|
|
inferior. Mark function as frameless, as the inferior has no chance
|
|
|
|
|
of setting up a stack frame. */
|
|
|
|
|
if (fi->pc == 0)
|
|
|
|
|
return 1;
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1997-05-15 17:01:54 +02:00
|
|
|
|
func_start += FUNCTION_START_OFFSET;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
(void) skip_prologue (func_start, &fdata);
|
|
|
|
|
return fdata.frameless;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
}
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
/* Return the PC saved in a frame */
|
1995-10-16 00:23:01 +01:00
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
unsigned long
|
|
|
|
|
frame_saved_pc (fi)
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR func_start;
|
|
|
|
|
struct rs6000_framedata fdata;
|
|
|
|
|
|
1995-07-30 10:45:15 +02:00
|
|
|
|
if (fi->signal_handler_caller)
|
|
|
|
|
return read_memory_integer (fi->frame + SIG_FRAME_PC_OFFSET, 4);
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
func_start = get_pc_function_start (fi->pc) + FUNCTION_START_OFFSET;
|
|
|
|
|
|
|
|
|
|
/* If we failed to find the start of the function, it is a mistake
|
|
|
|
|
to inspect the instructions. */
|
|
|
|
|
if (!func_start)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
(void) skip_prologue (func_start, &fdata);
|
|
|
|
|
|
1995-07-27 16:01:34 +02:00
|
|
|
|
if (fdata.lr_offset == 0 && fi->next != NULL)
|
1997-05-15 17:01:54 +02:00
|
|
|
|
{
|
|
|
|
|
if (fi->next->signal_handler_caller)
|
|
|
|
|
return read_memory_integer (fi->next->frame + SIG_FRAME_LR_OFFSET, 4);
|
|
|
|
|
else
|
|
|
|
|
return read_memory_integer (rs6000_frame_chain (fi) + DEFAULT_LR_SAVE,
|
|
|
|
|
4);
|
|
|
|
|
}
|
1995-07-27 16:01:34 +02:00
|
|
|
|
|
|
|
|
|
if (fdata.lr_offset == 0)
|
|
|
|
|
return read_register (LR_REGNUM);
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
return read_memory_integer (rs6000_frame_chain (fi) + fdata.lr_offset, 4);
|
|
|
|
|
}
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
/* If saved registers of frame FI are not known yet, read and cache them.
|
1995-07-25 16:46:12 +02:00
|
|
|
|
&FDATAP contains rs6000_framedata; TDATAP can be NULL,
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
in which case the framedata are read. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
frame_get_cache_fsr (fi, fdatap)
|
|
|
|
|
struct frame_info *fi;
|
1995-07-25 16:46:12 +02:00
|
|
|
|
struct rs6000_framedata *fdatap;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
{
|
|
|
|
|
int ii;
|
|
|
|
|
CORE_ADDR frame_addr;
|
1995-07-25 16:46:12 +02:00
|
|
|
|
struct rs6000_framedata work_fdata;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
if (fi->cache_fsr)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (fdatap == NULL) {
|
|
|
|
|
fdatap = &work_fdata;
|
1995-07-27 05:50:05 +02:00
|
|
|
|
(void) skip_prologue (get_pc_function_start (fi->pc), fdatap);
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fi->cache_fsr = (struct frame_saved_regs *)
|
|
|
|
|
obstack_alloc (&frame_cache_obstack, sizeof (struct frame_saved_regs));
|
1993-09-01 23:56:42 +02:00
|
|
|
|
memset (fi->cache_fsr, '\0', sizeof (struct frame_saved_regs));
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
if (fi->prev && fi->prev->frame)
|
|
|
|
|
frame_addr = fi->prev->frame;
|
|
|
|
|
else
|
|
|
|
|
frame_addr = read_memory_integer (fi->frame, 4);
|
|
|
|
|
|
|
|
|
|
/* if != -1, fdatap->saved_fpr is the smallest number of saved_fpr.
|
1995-07-30 10:45:15 +02:00
|
|
|
|
All fpr's from saved_fpr to fp31 are saved. */
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
if (fdatap->saved_fpr >= 0) {
|
1995-07-30 10:45:15 +02:00
|
|
|
|
int fpr_offset = frame_addr + fdatap->fpr_offset;
|
|
|
|
|
for (ii = fdatap->saved_fpr; ii < 32; ii++) {
|
|
|
|
|
fi->cache_fsr->regs [FP0_REGNUM + ii] = fpr_offset;
|
|
|
|
|
fpr_offset += 8;
|
|
|
|
|
}
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* if != -1, fdatap->saved_gpr is the smallest number of saved_gpr.
|
1995-07-30 10:45:15 +02:00
|
|
|
|
All gpr's from saved_gpr to gpr31 are saved. */
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1995-07-30 10:45:15 +02:00
|
|
|
|
if (fdatap->saved_gpr >= 0) {
|
|
|
|
|
int gpr_offset = frame_addr + fdatap->gpr_offset;
|
|
|
|
|
for (ii = fdatap->saved_gpr; ii < 32; ii++) {
|
|
|
|
|
fi->cache_fsr->regs [ii] = gpr_offset;
|
|
|
|
|
gpr_offset += 4;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If != 0, fdatap->cr_offset is the offset from the frame that holds
|
|
|
|
|
the CR. */
|
|
|
|
|
if (fdatap->cr_offset != 0)
|
|
|
|
|
fi->cache_fsr->regs [CR_REGNUM] = frame_addr + fdatap->cr_offset;
|
|
|
|
|
|
|
|
|
|
/* If != 0, fdatap->lr_offset is the offset from the frame that holds
|
|
|
|
|
the LR. */
|
|
|
|
|
if (fdatap->lr_offset != 0)
|
|
|
|
|
fi->cache_fsr->regs [LR_REGNUM] = frame_addr + fdatap->lr_offset;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the address of a frame. This is the inital %sp value when the frame
|
|
|
|
|
was first allocated. For functions calling alloca(), it might be saved in
|
|
|
|
|
an alloca register. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
frame_initial_stack_address (fi)
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR tmpaddr;
|
1995-07-25 16:46:12 +02:00
|
|
|
|
struct rs6000_framedata fdata;
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
struct frame_info *callee_fi;
|
|
|
|
|
|
|
|
|
|
/* if the initial stack pointer (frame address) of this frame is known,
|
|
|
|
|
just return it. */
|
|
|
|
|
|
|
|
|
|
if (fi->initial_sp)
|
|
|
|
|
return fi->initial_sp;
|
|
|
|
|
|
|
|
|
|
/* find out if this function is using an alloca register.. */
|
|
|
|
|
|
1995-07-27 05:50:05 +02:00
|
|
|
|
(void) skip_prologue (get_pc_function_start (fi->pc), &fdata);
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
/* if saved registers of this frame are not known yet, read and cache them. */
|
|
|
|
|
|
|
|
|
|
if (!fi->cache_fsr)
|
|
|
|
|
frame_get_cache_fsr (fi, &fdata);
|
|
|
|
|
|
|
|
|
|
/* If no alloca register used, then fi->frame is the value of the %sp for
|
|
|
|
|
this frame, and it is good enough. */
|
|
|
|
|
|
|
|
|
|
if (fdata.alloca_reg < 0) {
|
|
|
|
|
fi->initial_sp = fi->frame;
|
|
|
|
|
return fi->initial_sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function has an alloca register. If this is the top-most frame
|
|
|
|
|
(with the lowest address), the value in alloca register is good. */
|
|
|
|
|
|
|
|
|
|
if (!fi->next)
|
|
|
|
|
return fi->initial_sp = read_register (fdata.alloca_reg);
|
|
|
|
|
|
|
|
|
|
/* Otherwise, this is a caller frame. Callee has usually already saved
|
|
|
|
|
registers, but there are exceptions (such as when the callee
|
|
|
|
|
has no parameters). Find the address in which caller's alloca
|
|
|
|
|
register is saved. */
|
|
|
|
|
|
|
|
|
|
for (callee_fi = fi->next; callee_fi; callee_fi = callee_fi->next) {
|
|
|
|
|
|
|
|
|
|
if (!callee_fi->cache_fsr)
|
Tue Nov 17 11:17:06 1992 Ian Lance Taylor (ian@cygnus.com)
* tm-rs6000.h (BELIEVE_PCC_PROMOTION): Define, since AIX cc gets
it right.
(aix_framedata): added nosavedpc field.
(SAVED_PC_AFTER_CALL): Don't try to optimize; just call
read_register.
(FRAMELESS_FUNCTION_INVOCATION): Pass second argument of 0.
(FRAME_SAVED_PC): If PC not saved, use SAVED_PC_AFTER_CALL.
* rs6000-tdep.c (skip_prologue): Handle gcc generated stfd
instructions as function_frame_info does. Expand special case of
st r31,-4(r1) to be st r31,NUM(r1), since gcc can generate offsets
other than -4.
(pop_frame): Add 4 rather than sizeof (int) to avoid host
dependence.
(function_frame_info): Set frameless if the function has no frame,
and set nosavedpc if the PC was not saved. Handle gcc generated
stfd 31,-4(31); st 31, -12(31) correctly.
(frameless_function_invocation): New second argument pcsaved; if 0
return whether the function has a frame, if 1 return whether the
function saved PC.
(frame_initial_stack_address): Correct typo: cache registers for
callee_fi, not for fi, (avoids reading garbage memory locations).
1992-11-17 22:46:17 +01:00
|
|
|
|
frame_get_cache_fsr (callee_fi, NULL);
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
|
|
|
|
/* this is the address in which alloca register is saved. */
|
|
|
|
|
|
|
|
|
|
tmpaddr = callee_fi->cache_fsr->regs [fdata.alloca_reg];
|
|
|
|
|
if (tmpaddr) {
|
|
|
|
|
fi->initial_sp = read_memory_integer (tmpaddr, 4);
|
|
|
|
|
return fi->initial_sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Go look into deeper levels of the frame chain to see if any one of
|
|
|
|
|
the callees has saved alloca register. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If alloca register was not saved, by the callee (or any of its callees)
|
|
|
|
|
then the value in the register is still good. */
|
|
|
|
|
|
|
|
|
|
return fi->initial_sp = read_register (fdata.alloca_reg);
|
|
|
|
|
}
|
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
CORE_ADDR
|
1993-04-13 08:15:14 +02:00
|
|
|
|
rs6000_frame_chain (thisframe)
|
|
|
|
|
struct frame_info *thisframe;
|
|
|
|
|
{
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 02:19:29 +01:00
|
|
|
|
CORE_ADDR fp;
|
1993-04-13 08:15:14 +02:00
|
|
|
|
if (inside_entry_file ((thisframe)->pc))
|
|
|
|
|
return 0;
|
1993-04-20 20:02:54 +02:00
|
|
|
|
if (thisframe->signal_handler_caller)
|
1994-10-29 10:51:32 +01:00
|
|
|
|
fp = read_memory_integer (thisframe->frame + SIG_FRAME_FP_OFFSET, 4);
|
1997-05-15 17:01:54 +02:00
|
|
|
|
else if (thisframe->next != NULL
|
|
|
|
|
&& thisframe->next->signal_handler_caller
|
|
|
|
|
&& frameless_function_invocation (thisframe))
|
|
|
|
|
/* A frameless function interrupted by a signal did not change the
|
|
|
|
|
frame pointer. */
|
|
|
|
|
fp = FRAME_FP (thisframe);
|
1993-04-20 20:02:54 +02:00
|
|
|
|
else
|
|
|
|
|
fp = read_memory_integer ((thisframe)->frame, 4);
|
|
|
|
|
|
1993-04-13 08:15:14 +02:00
|
|
|
|
return fp;
|
|
|
|
|
}
|
RS/6000 portability changes (for hosting cross-debuggers).
* breakpoint.c (fixup_breakpoints): Re-kludge to IBM6000_TARGET.
* buildsym.c, rs6000-xdep.c, rs6000-tdep.c, tm-rs6000.h,
xcoffexec.c, xcoffread.c: Rename aixcoff to xcoff everywhere.
* printcmd.c (print_frame_args): Remove an RS/6000 dependency.
* stabsread.c (define_symbol): Remove RS/6000 dependencies.
* tm-rs6000.h (ATTACH_DETACH): Remove: host-dependent.
(PTRACE_ATTACH, PTRACE_DETACH): Remove: host-dep.
(NO_SINGLE_STEP): Add, target-dependent.
(loadinfotextindex): Lowercase, remove "aix_".
* xm-rs6000.h: Add <sys/ptrace.h> for infptrace.c.
(NO_SINGLE_STEP): Remove, target-dependent.
* xcoffexec.c (vmap_symtab): Cleanup #if 0'd code.
* xcoffread.c: Only build file if RS/6000 native GDB.
(build_function_symbol): Remove #if 0'd code.
* rs6000-tdep.c: Cleanup. Add static fn protos.
Use CORE_ADDR for addresses throughout. Make void fns void.
(pop_dummy_frame): Add FIXME about bogosity of design here.
(rs6000_struct_return_address): Ditto.
(frameless_function_invocation, frame_get_cache_fsr,
frame_initial_stack_address, xcoff_relocate_symtab,
xcoff_init_loadinfo, free_loadinfo, xcoff_add_toc_to_loadinfo,
add_text_to_loadinfo, find_toc_address): Move from xdep file.
Use CORE_ADDRs. Change identifiers to lowercase.
* rs6000-xdep.c: Make whole file conditional on native RS/6000,
supplying dummy routines if non-native. Add prototype for
static exec_one_dummy_insn. Move a mess of functions to
rs6000-tdep.c (as above). Remove #if 0'd code.
* config/rs6000.mh (XDEPFILES): Move xcoffexec.o to target side.
(XM_CLIBS): Add -lm to circumvent AIX 3.2 libc ldexp bug.
* config/rs6000.mt (TDEPFILES): Adopt xcoffexec.o.
* gdbtypes.h (TYPE_ALLOC): Parenthesize result to avoid problems
for callers.
1992-08-29 02:28:56 +02:00
|
|
|
|
|
1995-08-13 00:50:04 +02:00
|
|
|
|
/* Return nonzero if ADDR (a function pointer) is in the data space and
|
|
|
|
|
is therefore a special function pointer. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
is_magic_function_pointer (addr)
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
{
|
|
|
|
|
struct obj_section *s;
|
|
|
|
|
|
|
|
|
|
s = find_pc_section (addr);
|
|
|
|
|
if (s && s->the_bfd_section->flags & SEC_CODE)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
1995-06-06 16:49:32 +02:00
|
|
|
|
#ifdef GDB_TARGET_POWERPC
|
|
|
|
|
int
|
|
|
|
|
gdb_print_insn_powerpc (memaddr, info)
|
|
|
|
|
bfd_vma memaddr;
|
|
|
|
|
disassemble_info *info;
|
|
|
|
|
{
|
|
|
|
|
if (TARGET_BYTE_ORDER == BIG_ENDIAN)
|
|
|
|
|
return print_insn_big_powerpc (memaddr, info);
|
|
|
|
|
else
|
|
|
|
|
return print_insn_little_powerpc (memaddr, info);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 05:36:51 +01:00
|
|
|
|
void
|
|
|
|
|
_initialize_rs6000_tdep ()
|
|
|
|
|
{
|
|
|
|
|
/* FIXME, this should not be decided via ifdef. */
|
|
|
|
|
#ifdef GDB_TARGET_POWERPC
|
1995-06-06 16:49:32 +02:00
|
|
|
|
tm_print_insn = gdb_print_insn_powerpc;
|
General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 05:36:51 +01:00
|
|
|
|
#else
|
|
|
|
|
tm_print_insn = print_insn_rs6000;
|
|
|
|
|
#endif
|
|
|
|
|
}
|