1991-03-28 17:28:29 +01:00
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/* Low level Pyramid interface to ptrace, for GDB when running under Unix.
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Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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1991-06-04 09:31:55 +02:00
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This program is free software; you can redistribute it and/or modify
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1991-03-28 17:28:29 +01:00
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it under the terms of the GNU General Public License as published by
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1991-06-04 09:31:55 +02:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-28 17:28:29 +01:00
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1991-06-04 09:31:55 +02:00
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This program is distributed in the hope that it will be useful,
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1991-03-28 17:28:29 +01:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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1991-06-04 09:31:55 +02:00
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-03-28 17:28:29 +01:00
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include <sys/param.h>
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#include <sys/dir.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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/* #include <fcntl.h> Can we live without this? */
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#include "gdbcore.h"
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#include <sys/user.h> /* After a.out.h */
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#include <sys/file.h>
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* configure.in: Check for working mmap, ansi headers, string.h,
strings.h, and memory.h.
* configure: Regenerated.
* gdb_stat.h: New file, "portable" <sys/stat.h>.
* gdb_string.h: New file, "portable" <string.h>.
* altos-xdep.c, arm-tdep.c, arm-xdep.c, convex-tdep.c,
convex-xdep.c, coredep.c, cxux-nat.c, dbxread.c, exec.c,
gould-xdep.c, hppa-tdep.c, i386aix-nat.c, i386b-nat.c,
i386mach-nat.c, i386v-nat.c, infptrace.c, m88k-nat.c, main.c,
mdebugread.c, objfiles.c, os9kread.c, procfs.c, pyr-xdep.c,
rs6000-nat.c, source.c, standalone.c, stuff.c, sun386-nat.c,
symfile.c, symm-nat.c, symm-tdep.c, symtab.c, top.c, ultra3-nat.c,
ultra3-xdep.c, umax-xdep.c, xcoffread.c: Include "gdb_stat.h"
instead of <sys/stat.h>.
* alpha-tdep.c, breakpoint.c, buildsym.c, c-typeprint.c,
ch-typeprint.c, coffread.c, command.c, core-sol2.c, core-svr4.c,
core.c, corelow.c, cp-valprint.c, dbxread.c, dcache.c, demangle.c,
dpx2-nat.c, dstread.c, dwarfread.c, elfread.c, environ.c, eval.c,
exec.c, f-lang.c, f-typeprint.c, f-valprint.c, findvar.c,
fork-child.c, gdbtypes.c, hpread.c, i386-tdep.c, infcmd.c,
inflow.c, infptrace.c, infrun.c, irix5-nat.c, language.c,
m2-typeprint.c, main.c, mdebugread.c, minsyms.c, mipsread.c,
monitor.c, nlmread.c, objfiles.c, os9kread.c, osfsolib.c, parse.c,
printcmd.c, procfs.c, regex.c, remote-adapt.c, remote-arc.c,
remote-array.c, remote-bug.c, remote-e7000.c, remote-eb.c,
remote-es.c, remote-hms.c, remote-mm.c, remote-os9k.c,
remote-pa.c, remote-sim.c, remote-st.c, remote-udi.c,
remote-utils.c, remote-vx.c, remote-vx29k.c, remote-vx68.c,
remote-vx960.c, remote-vxmips.c, remote-vxsparc.c, remote.c,
solib.c, somread.c, source.c, stabsread.c, stack.c, symfile.c,
symmisc.c, symtab.c, target.c, top.c, typeprint.c, utils.c,
valarith.c, valops.c, valprint.c, values.c, xcoffread.c: Include
"gdb_string.h" instead of <string.h>.
* gdbtk.c: Likewise.
* config/xm-sysv4.h, i386/xm-ptx.h, m68k/xm-sun3os4.h,
sparc/xm-sun4os4.h (HAVE_MMAP): Removed.
* config/xm-lynx.h, config/i386/xm-ptx.h,
config/m68k/nm-apollo68b.h, config/m68k/xm-hp300hpux.h,
config/mips/xm-irix3.h, config/mips/xm-mips.h,
config/mips/xm-news-mips.h, config/mips/xm-riscos.h,
config/pa/hppah.h, config/rs6000/xm-rs6000.h,
config/sparc/xm-sun4os4.h, config/sparc/xm-sun4sol2.h,
config/vax/xm-vaxbsd.h, config/vax/xm-vaxult.h,
config/vax/xm-vaxult2.h (MEM_FNS_DECLARED): Removed.
* config/mips/xm-irix3.h, config/mips/xm-mips.h,
config/pa/xm-hppah.h (memcpy, memset): Removed declarations.
1995-08-01 22:14:27 +02:00
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#include "gdb_stat.h"
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1992-02-22 02:46:16 +01:00
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1991-03-28 17:28:29 +01:00
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void
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1992-02-22 02:46:16 +01:00
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fetch_inferior_registers (regno)
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int regno;
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1991-03-28 17:28:29 +01:00
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{
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1992-02-22 02:46:16 +01:00
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register int datum;
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1991-03-28 17:28:29 +01:00
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register unsigned int regaddr;
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int reg_buf[NUM_REGS+1];
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struct user u;
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register int skipped_frames = 0;
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registers_fetched ();
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for (regno = 0; regno < 64; regno++) {
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* Makefile.in (VERSION): Bump to 4.5.6.
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to
correct type.
* defs.h (NORETURN): Define away for Lucid compiler.
* remote.c (remote_timer, remote_interrupt): Signal handlers
take one int arg.
* ser-termios.c (serial_write, serial_close): Return whatever
value the write/close call returns, rather than falling off end.
* inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on
more systems than it is "char *". Define PTRACE_ARG3_TYPE to
default to int.
* infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c,
inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type
of third arg.
* a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c,
m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c,
pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c,
symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace
argument 3.
* sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers,
store_inferior_registers): Supply missing fourth argument to
ptrace().
1992-06-24 06:49:48 +02:00
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reg_buf[regno] = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) regno, 0);
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1991-03-28 17:28:29 +01:00
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#if defined(PYRAMID_CONTROL_FRAME_DEBUGGING)
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1993-11-01 23:25:23 +01:00
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printf_unfiltered ("Fetching register %s, got %0x\n",
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1991-03-28 17:28:29 +01:00
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reg_names[regno],
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reg_buf[regno]);
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#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
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if (reg_buf[regno] == -1 && errno == EIO) {
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1993-11-01 23:25:23 +01:00
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printf_unfiltered("fetch_interior_registers: fetching register %s\n",
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1991-03-28 17:28:29 +01:00
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reg_names[regno]);
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errno = 0;
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}
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supply_register (regno, reg_buf+regno);
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}
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/* that leaves regs 64, 65, and 66 */
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datum = ptrace (3, inferior_pid,
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* Makefile.in (VERSION): Bump to 4.5.6.
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to
correct type.
* defs.h (NORETURN): Define away for Lucid compiler.
* remote.c (remote_timer, remote_interrupt): Signal handlers
take one int arg.
* ser-termios.c (serial_write, serial_close): Return whatever
value the write/close call returns, rather than falling off end.
* inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on
more systems than it is "char *". Define PTRACE_ARG3_TYPE to
default to int.
* infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c,
inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type
of third arg.
* a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c,
m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c,
pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c,
symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace
argument 3.
* sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers,
store_inferior_registers): Supply missing fourth argument to
ptrace().
1992-06-24 06:49:48 +02:00
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(PTRACE_ARG3_TYPE) (((char *)&u.u_pcb.pcb_csp) -
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((char *)&u)), 0);
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1991-03-28 17:28:29 +01:00
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/* FIXME: Find the Current Frame Pointer (CFP). CFP is a global
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register (ie, NOT windowed), that gets saved in a frame iff
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the code for that frame has a prologue (ie, "adsf N"). If
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there is a prologue, the adsf insn saves the old cfp in
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pr13, cfp is set to sp, and N bytes of locals are allocated
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(sp is decremented by n).
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This makes finding CFP hard. I guess the right way to do it
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is:
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- If this is the innermost frame, believe ptrace() or
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the core area.
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- Otherwise:
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Find the first insn of the current frame.
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- find the saved pc;
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- find the call insn that saved it;
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- figure out where the call is to;
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- if the first insn is an adsf, we got a frame
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pointer. */
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/* Normal processors have separate stack pointers for user and
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kernel mode. Getting the last user mode frame on such
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machines is easy: the kernel context of the ptrace()'d
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process is on the kernel stack, and the USP points to what
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we want. But Pyramids only have a single cfp for both user and
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kernel mode. And processes being ptrace()'d have some
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kernel-context control frames on their stack.
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To avoid tracing back into the kernel context of an inferior,
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we skip 0 or more contiguous control frames where the pc is
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in the kernel. */
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while (1) {
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register int inferior_saved_pc;
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* Makefile.in (VERSION): Bump to 4.5.6.
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to
correct type.
* defs.h (NORETURN): Define away for Lucid compiler.
* remote.c (remote_timer, remote_interrupt): Signal handlers
take one int arg.
* ser-termios.c (serial_write, serial_close): Return whatever
value the write/close call returns, rather than falling off end.
* inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on
more systems than it is "char *". Define PTRACE_ARG3_TYPE to
default to int.
* infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c,
inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type
of third arg.
* a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c,
m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c,
pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c,
symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace
argument 3.
* sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers,
store_inferior_registers): Supply missing fourth argument to
ptrace().
1992-06-24 06:49:48 +02:00
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inferior_saved_pc = ptrace (1, inferior_pid,
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(PTRACE_ARG3_TYPE) (datum+((32+15)*4)), 0);
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1991-03-28 17:28:29 +01:00
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if (inferior_saved_pc > 0) break;
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#if defined(PYRAMID_CONTROL_FRAME_DEBUGGING)
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1993-11-01 23:25:23 +01:00
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printf_unfiltered("skipping kernel frame %08x, pc=%08x\n", datum,
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1991-03-28 17:28:29 +01:00
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inferior_saved_pc);
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#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
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skipped_frames++;
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datum -= CONTROL_STACK_FRAME_SIZE;
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}
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reg_buf[CSP_REGNUM] = datum;
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supply_register(CSP_REGNUM, reg_buf+CSP_REGNUM);
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#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
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if (skipped_frames) {
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1993-11-01 23:25:23 +01:00
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fprintf_unfiltered (stderr,
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1991-03-28 17:28:29 +01:00
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"skipped %d frames from %x to %x; cfp was %x, now %x\n",
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skipped_frames, reg_buf[CSP_REGNUM]);
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}
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#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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1992-02-22 02:46:16 +01:00
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void
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1991-03-28 17:28:29 +01:00
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store_inferior_registers (regno)
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int regno;
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{
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register unsigned int regaddr;
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char buf[80];
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if (regno >= 0)
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{
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if ((0 <= regno) && (regno < 64)) {
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/*regaddr = register_addr (regno, offset);*/
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regaddr = regno;
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errno = 0;
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* Makefile.in (VERSION): Bump to 4.5.6.
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to
correct type.
* defs.h (NORETURN): Define away for Lucid compiler.
* remote.c (remote_timer, remote_interrupt): Signal handlers
take one int arg.
* ser-termios.c (serial_write, serial_close): Return whatever
value the write/close call returns, rather than falling off end.
* inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on
more systems than it is "char *". Define PTRACE_ARG3_TYPE to
default to int.
* infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c,
inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type
of third arg.
* a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c,
m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c,
pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c,
symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace
argument 3.
* sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers,
store_inferior_registers): Supply missing fourth argument to
ptrace().
1992-06-24 06:49:48 +02:00
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ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
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read_register (regno));
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1991-03-28 17:28:29 +01:00
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if (errno != 0)
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{
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sprintf (buf, "writing register number %d", regno);
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perror_with_name (buf);
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}
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}
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}
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else
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{
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for (regno = 0; regno < NUM_REGS; regno++)
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{
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/*regaddr = register_addr (regno, offset);*/
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regaddr = regno;
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errno = 0;
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* Makefile.in (VERSION): Bump to 4.5.6.
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to
correct type.
* defs.h (NORETURN): Define away for Lucid compiler.
* remote.c (remote_timer, remote_interrupt): Signal handlers
take one int arg.
* ser-termios.c (serial_write, serial_close): Return whatever
value the write/close call returns, rather than falling off end.
* inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on
more systems than it is "char *". Define PTRACE_ARG3_TYPE to
default to int.
* infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c,
inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type
of third arg.
* a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c,
m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c,
pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c,
symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace
argument 3.
* sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers,
store_inferior_registers): Supply missing fourth argument to
ptrace().
1992-06-24 06:49:48 +02:00
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ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
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|
|
read_register (regno));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
if (errno != 0)
|
|
|
|
|
{
|
|
|
|
|
sprintf (buf, "writing all regs, number %d", regno);
|
|
|
|
|
perror_with_name (buf);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*** Extensions to core and dump files, for GDB. */
|
|
|
|
|
|
|
|
|
|
extern unsigned int last_frame_offset;
|
|
|
|
|
|
|
|
|
|
#ifdef PYRAMID_CORE
|
|
|
|
|
|
|
|
|
|
/* Can't make definitions here static, since core.c needs them
|
|
|
|
|
to do bounds checking on the core-file areas. O well. */
|
|
|
|
|
|
|
|
|
|
/* have two stacks: one for data, one for register windows. */
|
|
|
|
|
extern CORE_ADDR reg_stack_start;
|
|
|
|
|
extern CORE_ADDR reg_stack_end;
|
|
|
|
|
|
|
|
|
|
/* need this so we can find the global registers: they never get saved. */
|
|
|
|
|
CORE_ADDR global_reg_offset;
|
|
|
|
|
static CORE_ADDR last_frame_address;
|
|
|
|
|
CORE_ADDR last_frame_offset;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Address in core file of start of register window stack area.
|
|
|
|
|
Don't know if is this any of meaningful, useful or necessary. */
|
|
|
|
|
extern int reg_stack_offset;
|
|
|
|
|
|
|
|
|
|
#endif /* PYRAMID_CORE */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Work with core dump and executable files, for GDB.
|
|
|
|
|
This code would be in core.c if it weren't machine-dependent. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
core_file_command (filename, from_tty)
|
|
|
|
|
char *filename;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
|
|
|
|
int val;
|
|
|
|
|
extern char registers[];
|
|
|
|
|
|
|
|
|
|
/* Discard all vestiges of any previous core file
|
|
|
|
|
and mark data and stack spaces as empty. */
|
|
|
|
|
|
|
|
|
|
if (corefile)
|
|
|
|
|
free (corefile);
|
|
|
|
|
corefile = 0;
|
|
|
|
|
|
|
|
|
|
if (corechan >= 0)
|
|
|
|
|
close (corechan);
|
|
|
|
|
corechan = -1;
|
|
|
|
|
|
|
|
|
|
data_start = 0;
|
|
|
|
|
data_end = 0;
|
|
|
|
|
stack_start = STACK_END_ADDR;
|
|
|
|
|
stack_end = STACK_END_ADDR;
|
|
|
|
|
|
|
|
|
|
#ifdef PYRAMID_CORE
|
|
|
|
|
reg_stack_start = CONTROL_STACK_ADDR;
|
|
|
|
|
reg_stack_end = CONTROL_STACK_ADDR; /* this isn't strictly true...*/
|
|
|
|
|
#endif /* PYRAMID_CORE */
|
|
|
|
|
|
|
|
|
|
/* Now, if a new core file was specified, open it and digest it. */
|
|
|
|
|
|
|
|
|
|
if (filename)
|
|
|
|
|
{
|
|
|
|
|
filename = tilde_expand (filename);
|
|
|
|
|
make_cleanup (free, filename);
|
|
|
|
|
|
|
|
|
|
if (have_inferior_p ())
|
1993-05-25 18:22:41 +02:00
|
|
|
|
error ("To look at a core file, you must kill the program with \"kill\".");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
corechan = open (filename, O_RDONLY, 0);
|
|
|
|
|
if (corechan < 0)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
/* 4.2-style (and perhaps also sysV-style) core dump file. */
|
|
|
|
|
{
|
|
|
|
|
struct user u;
|
|
|
|
|
|
|
|
|
|
unsigned int reg_offset;
|
|
|
|
|
|
|
|
|
|
val = myread (corechan, &u, sizeof u);
|
|
|
|
|
if (val < 0)
|
|
|
|
|
perror_with_name ("Not a core file: reading upage");
|
|
|
|
|
if (val != sizeof u)
|
|
|
|
|
error ("Not a core file: could only read %d bytes", val);
|
|
|
|
|
data_start = exec_data_start;
|
|
|
|
|
|
|
|
|
|
data_end = data_start + NBPG * u.u_dsize;
|
|
|
|
|
data_offset = NBPG * UPAGES;
|
|
|
|
|
stack_offset = NBPG * (UPAGES + u.u_dsize);
|
|
|
|
|
|
|
|
|
|
/* find registers in core file */
|
|
|
|
|
#ifdef PYRAMID_PTRACE
|
|
|
|
|
stack_start = stack_end - NBPG * u.u_ussize;
|
|
|
|
|
reg_stack_offset = stack_offset + (NBPG *u.u_ussize);
|
|
|
|
|
reg_stack_end = reg_stack_start + NBPG * u.u_cssize;
|
|
|
|
|
|
|
|
|
|
last_frame_address = ((int) u.u_pcb.pcb_csp);
|
|
|
|
|
last_frame_offset = reg_stack_offset + last_frame_address
|
|
|
|
|
- CONTROL_STACK_ADDR ;
|
|
|
|
|
global_reg_offset = (char *)&u - (char *)&u.u_pcb.pcb_gr0 ;
|
|
|
|
|
|
|
|
|
|
/* skip any control-stack frames that were executed in the
|
|
|
|
|
kernel. */
|
|
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
|
char buf[4];
|
|
|
|
|
val = lseek (corechan, last_frame_offset+(47*4), 0);
|
|
|
|
|
if (val < 0)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
val = myread (corechan, buf, sizeof buf);
|
|
|
|
|
if (val < 0)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
|
|
|
|
|
if (*(int *)buf >= 0)
|
|
|
|
|
break;
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("skipping frame %s\n", local_hex_string (last_frame_address));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
last_frame_offset -= CONTROL_STACK_FRAME_SIZE;
|
|
|
|
|
last_frame_address -= CONTROL_STACK_FRAME_SIZE;
|
|
|
|
|
}
|
|
|
|
|
reg_offset = last_frame_offset;
|
|
|
|
|
|
|
|
|
|
#if 1 || defined(PYRAMID_CONTROL_FRAME_DEBUGGING)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("Control stack pointer = %s\n",
|
1991-09-19 04:40:29 +02:00
|
|
|
|
local_hex_string (u.u_pcb.pcb_csp));
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("offset to control stack %d outermost frame %d (%s)\n",
|
1991-09-19 04:40:29 +02:00
|
|
|
|
reg_stack_offset, reg_offset, local_hex_string (last_frame_address));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
|
|
|
|
|
|
|
|
|
|
#else /* not PYRAMID_CORE */
|
|
|
|
|
stack_start = stack_end - NBPG * u.u_ssize;
|
|
|
|
|
reg_offset = (int) u.u_ar0 - KERNEL_U_ADDR;
|
|
|
|
|
#endif /* not PYRAMID_CORE */
|
|
|
|
|
|
|
|
|
|
#ifdef __not_on_pyr_yet
|
|
|
|
|
/* Some machines put an absolute address in here and some put
|
|
|
|
|
the offset in the upage of the regs. */
|
|
|
|
|
reg_offset = (int) u.u_ar0;
|
|
|
|
|
if (reg_offset > NBPG * UPAGES)
|
|
|
|
|
reg_offset -= KERNEL_U_ADDR;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* I don't know where to find this info.
|
|
|
|
|
So, for now, mark it as not available. */
|
|
|
|
|
N_SET_MAGIC (core_aouthdr, 0);
|
|
|
|
|
|
|
|
|
|
/* Read the register values out of the core file and store
|
|
|
|
|
them where `read_register' will find them. */
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
register int regno;
|
|
|
|
|
|
|
|
|
|
for (regno = 0; regno < 64; regno++)
|
|
|
|
|
{
|
|
|
|
|
char buf[MAX_REGISTER_RAW_SIZE];
|
|
|
|
|
|
|
|
|
|
val = lseek (corechan, register_addr (regno, reg_offset), 0);
|
|
|
|
|
if (val < 0
|
|
|
|
|
|| (val = myread (corechan, buf, sizeof buf)) < 0)
|
|
|
|
|
{
|
|
|
|
|
char * buffer = (char *) alloca (strlen (reg_names[regno])
|
|
|
|
|
+ 30);
|
|
|
|
|
strcpy (buffer, "Reading register ");
|
|
|
|
|
strcat (buffer, reg_names[regno]);
|
|
|
|
|
|
|
|
|
|
perror_with_name (buffer);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (val < 0)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("[reg %s(%d), offset in file %s=0x%0x, addr =0x%0x, =%0x]\n",
|
1991-03-28 17:28:29 +01:00
|
|
|
|
reg_names[regno], regno, filename,
|
|
|
|
|
register_addr(regno, reg_offset),
|
|
|
|
|
regno * 4 + last_frame_address,
|
|
|
|
|
*((int *)buf));
|
|
|
|
|
#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
|
|
|
|
|
supply_register (regno, buf);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (filename[0] == '/')
|
|
|
|
|
corefile = savestring (filename, strlen (filename));
|
|
|
|
|
else
|
|
|
|
|
{
|
1991-11-12 18:50:14 +01:00
|
|
|
|
corefile = concat (current_directory, "/", filename, NULL);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 1 || defined(PYRAMID_CONTROL_FRAME_DEBUGGING)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("Providing CSP (%s) as nominal address of current frame.\n",
|
1991-09-19 04:40:29 +02:00
|
|
|
|
local_hex_string(last_frame_address));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
#endif PYRAMID_CONTROL_FRAME_DEBUGGING
|
|
|
|
|
/* FIXME: Which of the following is correct? */
|
|
|
|
|
#if 0
|
|
|
|
|
set_current_frame ( create_new_frame (read_register (FP_REGNUM),
|
|
|
|
|
read_pc ()));
|
|
|
|
|
#else
|
|
|
|
|
set_current_frame ( create_new_frame (last_frame_address,
|
|
|
|
|
read_pc ()));
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
select_frame (get_current_frame (), 0);
|
|
|
|
|
validate_files ();
|
|
|
|
|
}
|
|
|
|
|
else if (from_tty)
|
1993-11-01 23:25:23 +01:00
|
|
|
|
printf_unfiltered ("No core file now.\n");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|