binutils-gdb/gdb/remote-vxsparc.c

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/* sparc-dependent portions of the RPC protocol
used with a VxWorks target
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Contributed by Wind River Systems.
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This file is part of GDB.
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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.
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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.
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You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include "defs.h"
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#include "vx-share/regPacket.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include "command.h"
#include "symtab.h"
#include "symfile.h"
#include "regcache.h"
#include "gdb_string.h"
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
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#ifdef _AIX /* IBM claims "void *malloc()" not char * */
#define malloc bogon_malloc
#endif
#include <rpc/rpc.h>
#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
#include <netdb.h>
#include "vx-share/ptrace.h"
#include "vx-share/xdr_ptrace.h"
#include "vx-share/xdr_ld.h"
#include "vx-share/xdr_rdb.h"
#include "vx-share/dbgRpcLib.h"
/* get rid of value.h if possible */
#include <value.h>
#include <symtab.h>
/* Flag set if target has fpu */
extern int target_has_fp;
/* sparc floating point format descriptor, from "sparc-tdep.c." */
extern struct ext_format ext_format_sparc;
/* Generic register read/write routines in remote-vx.c. */
extern void net_read_registers ();
extern void net_write_registers ();
/* Read a register or registers from the VxWorks target.
REGNO is the register to read, or -1 for all; currently,
it is ignored. FIXME look at regno to improve efficiency. */
void
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vx_read_register (int regno)
{
char sparc_greg_packet[SPARC_GREG_PLEN];
char sparc_fpreg_packet[SPARC_FPREG_PLEN];
CORE_ADDR sp;
/* Get general-purpose registers. When copying values into
registers [], don't assume that a location in registers []
is properly aligned for the target data type. */
net_read_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_GETREGS);
/* Now copy the register values into registers[].
Note that this code depends on the ordering of the REGNUMs
as defined in "tm-sparc.h". */
bcopy (&sparc_greg_packet[SPARC_R_G0],
&deprecated_registers[REGISTER_BYTE (G0_REGNUM)],
32 * SPARC_GREG_SIZE);
bcopy (&sparc_greg_packet[SPARC_R_Y],
&deprecated_registers[REGISTER_BYTE (Y_REGNUM)], 6 * SPARC_GREG_SIZE);
2003-04-05 Andrew Cagney <cagney@redhat.com> Eliminate FRAME_FIND_SAVED_REGS. * config/pa/tm-hppah.h (hppa_hpux_frame_find_saved_regs_in_sigtramp): Change FSR parameter to a pointer. * config/pa/tm-hppa64.h (FRAME_FIND_SAVED_REGS_IN_SIGTRAMP): Assume FSR parameter is a pointer. * hppa-hpux-tdep.c (hppa_hpux_frame_find_saved_regs_in_sigtramp): Make fsr a pointer. * hppa-tdep.c (hppa_frame_find_saved_regs): New function. (hppa_frame_saved_pc): Call hppa_frame_init_saved_regs. Make saved_regs a pointer. (hppa_frame_saved_pc): Ditto. (find_dummy_frame_regs): Make frame_saved_regs a pointer (hppa_pop_frame): Call hppa_frame_init_saved_regs. Make fsr a pointer. (restore_pc_queue): Make fsr a pointer. (hppa_frame_find_saved_regs): Make frame_saved_regs a pointer. (hppa_frame_chain): Make saved_regs a pointer, call hppa_frame_init_saved_regs. * sparc-tdep.c: Include "gdb_assert.h". (sparc_frame_find_saved_regs): Replace internal_error with gdb_assert. * remote-vxsparc.c (vx_read_register): Delete reference to FRAME_FIND_SAVED_REGS. * gdbarch.sh: Delete check for FRAME_FIND_SAVED_REGS. * gdbarch.h: Regenerate. * frame.h (DEPRECATED_FRAME_INIT_SAVED_REGS): Delete macro. (deprecated_get_frame_saved_regs): Delete declaration. (struct frame_saved_regs): Delete definition. * frame.c (deprecated_get_frame_saved_regs): Delete function. * config/pa/tm-hppa.h (hppa_frame_init_saved_regs): Declare. (hppa_frame_find_saved_regs): Delete declaration. (FRAME_FIND_SAVED_REGS): Delete macro. (DEPRECATED_FRAME_INIT_SAVED_REGS): Define. * config/i386/tm-ptx.h (FRAME_FIND_SAVED_REGS): Delete FRAME_FIND_SAVED_REGS in comment.
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/* Now write the local and in registers to the register window spill
area in the frame. VxWorks does not do this for the active frame
automatically; it greatly simplifies debugging. */
2003-06-01 Andrew Cagney <cagney@redhat.com> * defs.h (extract_address): Delete declaration. * findvar.c (extract_address): Delete function. * xstormy16-tdep.c (xstormy16_extract_return_value): Replace extract_address with the inline equivalent, extract_unsigned_integer. (xstormy16_extract_struct_value_address): Ditto. (xstormy16_pointer_to_address): Ditto. * vax-tdep.c (vax_extract_struct_value_address): Ditto. * v850-tdep.c (v850_push_arguments): Ditto. (v850_extract_return_value): Ditto. (v850_extract_struct_value_address): Ditto. * sparcnbsd-tdep.c (sparcnbsd_get_longjmp_target_32): Ditto. (sparcnbsd_get_longjmp_target_64): Ditto. * sparc-tdep.c (sparc_frame_saved_pc): Ditto. (get_longjmp_target): Ditto. * sh-tdep.c (sh_extract_struct_value_address): Ditto. (sh64_extract_struct_value_address): Ditto. (sh_push_arguments): Ditto. (sh64_push_arguments): Ditto. * remote-vxsparc.c (vx_read_register): Ditto. * ppc-linux-tdep.c (ppc_linux_skip_trampoline_code): Ditto. * ns32k-tdep.c (ns32k_extract_struct_value_address): Ditto. * mn10300-tdep.c (mn10300_extract_struct_value_address): Ditto. * mipsv4-nat.c (get_longjmp_target): Ditto. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Ditto. * mips-nat.c (get_longjmp_target): Ditto. * mips-linux-tdep.c (mips_linux_get_longjmp_target): Ditto. * mcore-tdep.c (mcore_extract_struct_value_address): Ditto. * m68k-tdep.c (m68k_get_longjmp_target): Ditto. * m68hc11-tdep.c (m68hc11_extract_struct_value_address): Ditto. * irix5-nat.c (get_longjmp_target): Ditto. * irix4-nat.c (get_longjmp_target): Ditto. * ia64-tdep.c (generic_elf_find_global_pointer): Ditto. (ia64_push_arguments): Ditto. * hpux-thread.c (hpux_thread_store_registers): Ditto. * h8300-tdep.c (h8300_push_arguments): Ditto. (h8300_store_return_value): Ditto. (h8300_extract_struct_value_address): Ditto. * frv-tdep.c (frv_extract_struct_value_address): Ditto. (frv_push_arguments): Ditto. * avr-tdep.c (avr_pointer_to_address): Ditto. (avr_push_arguments): Ditto. * arm-tdep.c (arm_push_dummy_call): Ditto. (arm_get_longjmp_target): Ditto. * arm-linux-tdep.c (arm_linux_push_arguments): Ditto. * alpha-tdep.c (alpha_extract_struct_value_address): Ditto. (alpha_get_longjmp_target): Ditto.
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sp = extract_unsigned_integer (&deprecated_registers[REGISTER_BYTE (SP_REGNUM)],
REGISTER_RAW_SIZE (SP_REGNUM));
write_memory (sp, &deprecated_registers[REGISTER_BYTE (L0_REGNUM)],
16 * REGISTER_RAW_SIZE (L0_REGNUM));
/* If the target has floating point registers, fetch them.
Otherwise, zero the floating point register values in
registers[] for good measure, even though we might not
need to. */
if (target_has_fp)
{
net_read_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN,
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PTRACE_GETFPREGS);
bcopy (&sparc_fpreg_packet[SPARC_R_FP0],
&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)],
32 * SPARC_FPREG_SIZE);
bcopy (&sparc_fpreg_packet[SPARC_R_FSR],
&deprecated_registers[REGISTER_BYTE (FPS_REGNUM)],
1 * SPARC_FPREG_SIZE);
}
else
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{
bzero (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)],
32 * SPARC_FPREG_SIZE);
bzero (&deprecated_registers[REGISTER_BYTE (FPS_REGNUM)],
1 * SPARC_FPREG_SIZE);
}
/* Mark the register cache valid. */
deprecated_registers_fetched ();
}
/* Store a register or registers into the VxWorks target.
REGNO is the register to store, or -1 for all; currently,
it is ignored. FIXME look at regno to improve efficiency. */
void
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vx_write_register (int regno)
{
char sparc_greg_packet[SPARC_GREG_PLEN];
char sparc_fpreg_packet[SPARC_FPREG_PLEN];
int in_gp_regs;
int in_fp_regs;
CORE_ADDR sp;
/* Store general purpose registers. When copying values from
registers [], don't assume that a location in registers []
is properly aligned for the target data type. */
in_gp_regs = 1;
in_fp_regs = 1;
if (regno >= 0)
{
if ((G0_REGNUM <= regno && regno <= I7_REGNUM)
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|| (Y_REGNUM <= regno && regno <= NPC_REGNUM))
in_fp_regs = 0;
else
in_gp_regs = 0;
}
if (in_gp_regs)
{
bcopy (&deprecated_registers[REGISTER_BYTE (G0_REGNUM)],
&sparc_greg_packet[SPARC_R_G0], 32 * SPARC_GREG_SIZE);
bcopy (&deprecated_registers[REGISTER_BYTE (Y_REGNUM)],
&sparc_greg_packet[SPARC_R_Y], 6 * SPARC_GREG_SIZE);
net_write_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_SETREGS);
/* If this is a local or in register, or we're storing all
registers, update the register window spill area. */
if (regno < 0 || (L0_REGNUM <= regno && regno <= I7_REGNUM))
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{
2003-06-01 Andrew Cagney <cagney@redhat.com> * defs.h (extract_address): Delete declaration. * findvar.c (extract_address): Delete function. * xstormy16-tdep.c (xstormy16_extract_return_value): Replace extract_address with the inline equivalent, extract_unsigned_integer. (xstormy16_extract_struct_value_address): Ditto. (xstormy16_pointer_to_address): Ditto. * vax-tdep.c (vax_extract_struct_value_address): Ditto. * v850-tdep.c (v850_push_arguments): Ditto. (v850_extract_return_value): Ditto. (v850_extract_struct_value_address): Ditto. * sparcnbsd-tdep.c (sparcnbsd_get_longjmp_target_32): Ditto. (sparcnbsd_get_longjmp_target_64): Ditto. * sparc-tdep.c (sparc_frame_saved_pc): Ditto. (get_longjmp_target): Ditto. * sh-tdep.c (sh_extract_struct_value_address): Ditto. (sh64_extract_struct_value_address): Ditto. (sh_push_arguments): Ditto. (sh64_push_arguments): Ditto. * remote-vxsparc.c (vx_read_register): Ditto. * ppc-linux-tdep.c (ppc_linux_skip_trampoline_code): Ditto. * ns32k-tdep.c (ns32k_extract_struct_value_address): Ditto. * mn10300-tdep.c (mn10300_extract_struct_value_address): Ditto. * mipsv4-nat.c (get_longjmp_target): Ditto. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Ditto. * mips-nat.c (get_longjmp_target): Ditto. * mips-linux-tdep.c (mips_linux_get_longjmp_target): Ditto. * mcore-tdep.c (mcore_extract_struct_value_address): Ditto. * m68k-tdep.c (m68k_get_longjmp_target): Ditto. * m68hc11-tdep.c (m68hc11_extract_struct_value_address): Ditto. * irix5-nat.c (get_longjmp_target): Ditto. * irix4-nat.c (get_longjmp_target): Ditto. * ia64-tdep.c (generic_elf_find_global_pointer): Ditto. (ia64_push_arguments): Ditto. * hpux-thread.c (hpux_thread_store_registers): Ditto. * h8300-tdep.c (h8300_push_arguments): Ditto. (h8300_store_return_value): Ditto. (h8300_extract_struct_value_address): Ditto. * frv-tdep.c (frv_extract_struct_value_address): Ditto. (frv_push_arguments): Ditto. * avr-tdep.c (avr_pointer_to_address): Ditto. (avr_push_arguments): Ditto. * arm-tdep.c (arm_push_dummy_call): Ditto. (arm_get_longjmp_target): Ditto. * arm-linux-tdep.c (arm_linux_push_arguments): Ditto. * alpha-tdep.c (alpha_extract_struct_value_address): Ditto. (alpha_get_longjmp_target): Ditto.
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sp = extract_unsigned_integer (&deprecated_registers[REGISTER_BYTE (SP_REGNUM)],
REGISTER_RAW_SIZE (SP_REGNUM));
write_memory (sp, &deprecated_registers[REGISTER_BYTE (L0_REGNUM)],
16 * REGISTER_RAW_SIZE (L0_REGNUM));
}
}
/* Store floating point registers if the target has them. */
if (in_fp_regs && target_has_fp)
{
bcopy (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)],
&sparc_fpreg_packet[SPARC_R_FP0], 32 * SPARC_FPREG_SIZE);
bcopy (&deprecated_registers[REGISTER_BYTE (FPS_REGNUM)],
&sparc_fpreg_packet[SPARC_R_FSR], 1 * SPARC_FPREG_SIZE);
net_write_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN,
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PTRACE_SETFPREGS);
}
}