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import gdb-1999-07-07 post reformat

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This commit is contained in:
Jason Molenda
1999-07-07 20:19:36 +00:00
parent 3a4b77d8be
commit c5aa993b1f
643 changed files with 69889 additions and 65773 deletions
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394
gdb/rs6000-nat.c
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@@ -1,22 +1,23 @@
/* IBM RS/6000 native-dependent code for GDB, the GNU debugger.
Copyright 1986, 1987, 1989, 1991, 1992, 1994, 1995, 1996, 1997, 1998
Free Software Foundation, Inc.
Free Software Foundation, Inc.
This file is part of GDB.
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 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.
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
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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 "defs.h"
#include "inferior.h"
@@ -25,7 +26,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "xcoffsolib.h"
#include "symfile.h"
#include "objfiles.h"
#include "libbfd.h" /* For bfd_cache_lookup (FIXME) */
#include "libbfd.h" /* For bfd_cache_lookup (FIXME) */
#include "bfd.h"
#include "gdb-stabs.h"
@@ -47,7 +48,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
extern int errno;
extern struct vmap * map_vmap PARAMS ((bfd *bf, bfd *arch));
extern struct vmap *map_vmap PARAMS ((bfd * bf, bfd * arch));
extern struct target_ops exec_ops;
@@ -58,7 +59,7 @@ static void
vmap_ldinfo PARAMS ((struct ld_info *));
static struct vmap *
add_vmap PARAMS ((struct ld_info *));
add_vmap PARAMS ((struct ld_info *));
static int
objfile_symbol_add PARAMS ((char *));
@@ -77,70 +78,75 @@ fixup_breakpoints PARAMS ((CORE_ADDR low, CORE_ADDR high, CORE_ADDR delta));
/* Conversion from gdb-to-system special purpose register numbers.. */
static int special_regs[] = {
IAR, /* PC_REGNUM */
MSR, /* PS_REGNUM */
CR, /* CR_REGNUM */
LR, /* LR_REGNUM */
CTR, /* CTR_REGNUM */
static int special_regs[] =
{
IAR, /* PC_REGNUM */
MSR, /* PS_REGNUM */
CR, /* CR_REGNUM */
LR, /* LR_REGNUM */
CTR, /* CTR_REGNUM */
XER, /* XER_REGNUM */
MQ /* MQ_REGNUM */
MQ /* MQ_REGNUM */
};
void
fetch_inferior_registers (regno)
int regno;
int regno;
{
int ii;
if (regno < 0) { /* for all registers */
if (regno < 0)
{ /* for all registers */
/* read 32 general purpose registers. */
/* read 32 general purpose registers. */
for (ii=0; ii < 32; ++ii)
*(int*)&registers[REGISTER_BYTE (ii)] =
ptrace (PT_READ_GPR, inferior_pid, (PTRACE_ARG3_TYPE) ii, 0, 0);
for (ii = 0; ii < 32; ++ii)
*(int *) &registers[REGISTER_BYTE (ii)] =
ptrace (PT_READ_GPR, inferior_pid, (PTRACE_ARG3_TYPE) ii, 0, 0);
/* read general purpose floating point registers. */
/* read general purpose floating point registers. */
for (ii=0; ii < 32; ++ii)
ptrace (PT_READ_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) &registers [REGISTER_BYTE (FP0_REGNUM+ii)],
FPR0+ii, 0);
for (ii = 0; ii < 32; ++ii)
ptrace (PT_READ_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) & registers[REGISTER_BYTE (FP0_REGNUM + ii)],
FPR0 + ii, 0);
/* read special registers. */
for (ii=0; ii <= LAST_UISA_SP_REGNUM-FIRST_UISA_SP_REGNUM; ++ii)
*(int*)&registers[REGISTER_BYTE (FIRST_UISA_SP_REGNUM+ii)] =
ptrace (PT_READ_GPR, inferior_pid, (PTRACE_ARG3_TYPE) special_regs[ii],
0, 0);
/* read special registers. */
for (ii = 0; ii <= LAST_UISA_SP_REGNUM - FIRST_UISA_SP_REGNUM; ++ii)
*(int *) &registers[REGISTER_BYTE (FIRST_UISA_SP_REGNUM + ii)] =
ptrace (PT_READ_GPR, inferior_pid, (PTRACE_ARG3_TYPE) special_regs[ii],
0, 0);
registers_fetched ();
return;
}
registers_fetched ();
return;
}
/* else an individual register is addressed. */
else if (regno < FP0_REGNUM) { /* a GPR */
*(int*)&registers[REGISTER_BYTE (regno)] =
else if (regno < FP0_REGNUM)
{ /* a GPR */
*(int *) &registers[REGISTER_BYTE (regno)] =
ptrace (PT_READ_GPR, inferior_pid, (PTRACE_ARG3_TYPE) regno, 0, 0);
}
else if (regno <= FPLAST_REGNUM) { /* a FPR */
ptrace (PT_READ_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) &registers [REGISTER_BYTE (regno)],
(regno-FP0_REGNUM+FPR0), 0);
}
else if (regno <= LAST_UISA_SP_REGNUM) { /* a special register */
*(int*)&registers[REGISTER_BYTE (regno)] =
}
else if (regno <= FPLAST_REGNUM)
{ /* a FPR */
ptrace (PT_READ_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) & registers[REGISTER_BYTE (regno)],
(regno - FP0_REGNUM + FPR0), 0);
}
else if (regno <= LAST_UISA_SP_REGNUM)
{ /* a special register */
*(int *) &registers[REGISTER_BYTE (regno)] =
ptrace (PT_READ_GPR, inferior_pid,
(PTRACE_ARG3_TYPE) special_regs[regno-FIRST_UISA_SP_REGNUM],
(PTRACE_ARG3_TYPE) special_regs[regno - FIRST_UISA_SP_REGNUM],
0, 0);
}
}
else
fprintf_unfiltered (gdb_stderr,
fprintf_unfiltered (gdb_stderr,
"gdb error: register no %d not implemented.\n",
regno);
register_valid [regno] = 1;
register_valid[regno] = 1;
}
/* Store our register values back into the inferior.
@@ -155,34 +161,34 @@ store_inferior_registers (regno)
errno = 0;
if (regno == -1)
{ /* for all registers.. */
{ /* for all registers.. */
int ii;
/* execute one dummy instruction (which is a breakpoint) in inferior
process. So give kernel a chance to do internal house keeping.
Otherwise the following ptrace(2) calls will mess up user stack
since kernel will get confused about the bottom of the stack (%sp) */
/* execute one dummy instruction (which is a breakpoint) in inferior
process. So give kernel a chance to do internal house keeping.
Otherwise the following ptrace(2) calls will mess up user stack
since kernel will get confused about the bottom of the stack (%sp) */
exec_one_dummy_insn ();
exec_one_dummy_insn ();
/* write general purpose registers first! */
for ( ii=GPR0; ii<=GPR31; ++ii)
for (ii = GPR0; ii <= GPR31; ++ii)
{
ptrace (PT_WRITE_GPR, inferior_pid, (PTRACE_ARG3_TYPE) ii,
*(int*)&registers[REGISTER_BYTE (ii)], 0);
*(int *) &registers[REGISTER_BYTE (ii)], 0);
if (errno)
{
{
perror ("ptrace write_gpr");
errno = 0;
}
}
/* write floating point registers now. */
for ( ii=0; ii < 32; ++ii)
for (ii = 0; ii < 32; ++ii)
{
ptrace (PT_WRITE_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) &registers[REGISTER_BYTE (FP0_REGNUM+ii)],
FPR0+ii, 0);
ptrace (PT_WRITE_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) & registers[REGISTER_BYTE (FP0_REGNUM + ii)],
FPR0 + ii, 0);
if (errno)
{
perror ("ptrace write_fpr");
@@ -191,11 +197,11 @@ store_inferior_registers (regno)
}
/* write special registers. */
for (ii=0; ii <= LAST_UISA_SP_REGNUM-FIRST_UISA_SP_REGNUM; ++ii)
for (ii = 0; ii <= LAST_UISA_SP_REGNUM - FIRST_UISA_SP_REGNUM; ++ii)
{
ptrace (PT_WRITE_GPR, inferior_pid,
(PTRACE_ARG3_TYPE) special_regs[ii],
*(int*)&registers[REGISTER_BYTE (FIRST_UISA_SP_REGNUM+ii)],
*(int *) &registers[REGISTER_BYTE (FIRST_UISA_SP_REGNUM + ii)],
0);
if (errno)
{
@@ -207,24 +213,24 @@ store_inferior_registers (regno)
/* else, a specific register number is given... */
else if (regno < FP0_REGNUM) /* a GPR */
else if (regno < FP0_REGNUM) /* a GPR */
{
ptrace (PT_WRITE_GPR, inferior_pid, (PTRACE_ARG3_TYPE) regno,
*(int*)&registers[REGISTER_BYTE (regno)], 0);
*(int *) &registers[REGISTER_BYTE (regno)], 0);
}
else if (regno <= FPLAST_REGNUM) /* a FPR */
else if (regno <= FPLAST_REGNUM) /* a FPR */
{
ptrace (PT_WRITE_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) &registers[REGISTER_BYTE (regno)],
ptrace (PT_WRITE_FPR, inferior_pid,
(PTRACE_ARG3_TYPE) & registers[REGISTER_BYTE (regno)],
regno - FP0_REGNUM + FPR0, 0);
}
else if (regno <= LAST_UISA_SP_REGNUM) /* a special register */
else if (regno <= LAST_UISA_SP_REGNUM) /* a special register */
{
ptrace (PT_WRITE_GPR, inferior_pid,
(PTRACE_ARG3_TYPE) special_regs [regno-FIRST_UISA_SP_REGNUM],
*(int*)&registers[REGISTER_BYTE (regno)], 0);
(PTRACE_ARG3_TYPE) special_regs[regno - FIRST_UISA_SP_REGNUM],
*(int *) &registers[REGISTER_BYTE (regno)], 0);
}
else
@@ -248,7 +254,7 @@ exec_one_dummy_insn ()
{
#define DUMMY_INSN_ADDR (TEXT_SEGMENT_BASE)+0x200
char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
int status, pid;
CORE_ADDR prev_pc;
@@ -267,15 +273,17 @@ exec_one_dummy_insn ()
powerpc-ibm-aix4.1.3 works correctly). */
prev_pc = read_pc ();
write_pc (DUMMY_INSN_ADDR);
ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE)1, 0, 0);
ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) 1, 0, 0);
if (errno)
perror ("pt_continue");
do {
pid = wait (&status);
} while (pid != inferior_pid);
do
{
pid = wait (&status);
}
while (pid != inferior_pid);
write_pc (prev_pc);
target_remove_breakpoint (DUMMY_INSN_ADDR, shadow_contents);
}
@@ -295,22 +303,22 @@ fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
memcpy (registers, core_reg_sect, 32 * 4);
/* gdb's internal register template and bfd's register section layout
should share a common include file. FIXMEmgo */
should share a common include file. FIXMEmgo */
/* then comes special registes. They are supposed to be in the same
order in gdb template and bfd `.reg' section. */
order in gdb template and bfd `.reg' section. */
core_reg_sect += (32 * 4);
memcpy (&registers [REGISTER_BYTE (FIRST_UISA_SP_REGNUM)],
core_reg_sect,
memcpy (&registers[REGISTER_BYTE (FIRST_UISA_SP_REGNUM)],
core_reg_sect,
(LAST_UISA_SP_REGNUM - FIRST_UISA_SP_REGNUM + 1) * 4);
}
/* fetch floating point registers from register section 2 in core bfd. */
else if (which == 2)
memcpy (&registers [REGISTER_BYTE (FP0_REGNUM)], core_reg_sect, 32 * 8);
memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], core_reg_sect, 32 * 8);
else
fprintf_unfiltered
(gdb_stderr,
fprintf_unfiltered
(gdb_stderr,
"Gdb error: unknown parameter to fetch_core_registers().\n");
}
@@ -323,13 +331,13 @@ vmap_symtab (vp)
register struct objfile *objfile;
struct section_offsets *new_offsets;
int i;
objfile = vp->objfile;
if (objfile == NULL)
{
/* OK, it's not an objfile we opened ourselves.
Currently, that can only happen with the exec file, so
relocate the symbols for the symfile. */
Currently, that can only happen with the exec file, so
relocate the symbols for the symfile. */
if (symfile_objfile == NULL)
return;
objfile = symfile_objfile;
@@ -341,7 +349,7 @@ vmap_symtab (vp)
for (i = 0; i < objfile->num_sections; ++i)
ANOFFSET (new_offsets, i) = ANOFFSET (objfile->section_offsets, i);
/* The symbols in the object file are linked to the VMA of the section,
relocate them VMA relative. */
ANOFFSET (new_offsets, SECT_OFF_TEXT) = vp->tstart - vp->tvma;
@@ -373,7 +381,7 @@ objfile_symbol_add (arg)
static struct vmap *
add_vmap (ldi)
register struct ld_info *ldi;
register struct ld_info *ldi;
{
bfd *abfd, *last;
register char *mem, *objname;
@@ -419,9 +427,9 @@ add_vmap (ldi)
return 0;
}
if (!bfd_check_format(last, bfd_object))
if (!bfd_check_format (last, bfd_object))
{
bfd_close (last); /* XXX??? */
bfd_close (last); /* XXX??? */
goto obj_err;
}
@@ -433,13 +441,13 @@ add_vmap (ldi)
bfd_close (abfd);
error ("\"%s\": not in executable format: %s.",
objname, bfd_errmsg (bfd_get_error ()));
/*NOTREACHED*/
/*NOTREACHED */
}
obj = allocate_objfile (vp->bfd, 0, 0, 0);
vp->objfile = obj;
#ifndef SOLIB_SYMBOLS_MANUAL
if (catch_errors (objfile_symbol_add, (char *)obj,
if (catch_errors (objfile_symbol_add, (char *) obj,
"Error while reading shared library symbols:\n",
RETURN_MASK_ALL))
{
@@ -467,91 +475,93 @@ vmap_ldinfo (ldi)
If so, update the mapping, and symbol table.
If not, add an entry and symbol table. */
do {
char *name = ldi->ldinfo_filename;
char *memb = name + strlen(name) + 1;
do
{
char *name = ldi->ldinfo_filename;
char *memb = name + strlen (name) + 1;
retried = 0;
retried = 0;
if (fstat (ldi->ldinfo_fd, &ii) < 0)
{
/* The kernel sets ld_info to -1, if the process is still using the
object, and the object is removed. Keep the symbol info for the
removed object and issue a warning. */
warning ("%s (fd=%d) has disappeared, keeping its symbols",
name, ldi->ldinfo_fd);
continue;
}
retry:
for (got_one = 0, vp = vmap; vp; vp = vp->nxt)
{
struct objfile *objfile;
/* First try to find a `vp', which is the same as in ldinfo.
If not the same, just continue and grep the next `vp'. If same,
relocate its tstart, tend, dstart, dend values. If no such `vp'
found, get out of this for loop, add this ldi entry as a new vmap
(add_vmap) and come back, find its `vp' and so on... */
/* The filenames are not always sufficient to match on. */
if ((name[0] == '/' && !STREQ(name, vp->name))
|| (memb[0] && !STREQ(memb, vp->member)))
if (fstat (ldi->ldinfo_fd, &ii) < 0)
{
/* The kernel sets ld_info to -1, if the process is still using the
object, and the object is removed. Keep the symbol info for the
removed object and issue a warning. */
warning ("%s (fd=%d) has disappeared, keeping its symbols",
name, ldi->ldinfo_fd);
continue;
}
retry:
for (got_one = 0, vp = vmap; vp; vp = vp->nxt)
{
struct objfile *objfile;
/* See if we are referring to the same file.
We have to check objfile->obfd, symfile.c:reread_symbols might
have updated the obfd after a change. */
objfile = vp->objfile == NULL ? symfile_objfile : vp->objfile;
if (objfile == NULL
|| objfile->obfd == NULL
|| bfd_stat (objfile->obfd, &vi) < 0)
{
warning ("Unable to stat %s, keeping its symbols", name);
/* First try to find a `vp', which is the same as in ldinfo.
If not the same, just continue and grep the next `vp'. If same,
relocate its tstart, tend, dstart, dend values. If no such `vp'
found, get out of this for loop, add this ldi entry as a new vmap
(add_vmap) and come back, find its `vp' and so on... */
/* The filenames are not always sufficient to match on. */
if ((name[0] == '/' && !STREQ (name, vp->name))
|| (memb[0] && !STREQ (memb, vp->member)))
continue;
}
if (ii.st_dev != vi.st_dev || ii.st_ino != vi.st_ino)
continue;
/* See if we are referring to the same file.
We have to check objfile->obfd, symfile.c:reread_symbols might
have updated the obfd after a change. */
objfile = vp->objfile == NULL ? symfile_objfile : vp->objfile;
if (objfile == NULL
|| objfile->obfd == NULL
|| bfd_stat (objfile->obfd, &vi) < 0)
{
warning ("Unable to stat %s, keeping its symbols", name);
continue;
}
if (!retried)
close (ldi->ldinfo_fd);
if (ii.st_dev != vi.st_dev || ii.st_ino != vi.st_ino)
continue;
++got_one;
if (!retried)
close (ldi->ldinfo_fd);
/* Found a corresponding VMAP. Remap! */
++got_one;
/* We can assume pointer == CORE_ADDR, this code is native only. */
vp->tstart = (CORE_ADDR) ldi->ldinfo_textorg;
vp->tend = vp->tstart + ldi->ldinfo_textsize;
vp->dstart = (CORE_ADDR) ldi->ldinfo_dataorg;
vp->dend = vp->dstart + ldi->ldinfo_datasize;
/* Found a corresponding VMAP. Remap! */
/* The run time loader maps the file header in addition to the text
section and returns a pointer to the header in ldinfo_textorg.
Adjust the text start address to point to the real start address
of the text section. */
vp->tstart += vp->toffs;
/* We can assume pointer == CORE_ADDR, this code is native only. */
vp->tstart = (CORE_ADDR) ldi->ldinfo_textorg;
vp->tend = vp->tstart + ldi->ldinfo_textsize;
vp->dstart = (CORE_ADDR) ldi->ldinfo_dataorg;
vp->dend = vp->dstart + ldi->ldinfo_datasize;
/* The objfile is only NULL for the exec file. */
if (vp->objfile == NULL)
got_exec_file = 1;
/* The run time loader maps the file header in addition to the text
section and returns a pointer to the header in ldinfo_textorg.
Adjust the text start address to point to the real start address
of the text section. */
vp->tstart += vp->toffs;
/* relocate symbol table(s). */
vmap_symtab (vp);
/* The objfile is only NULL for the exec file. */
if (vp->objfile == NULL)
got_exec_file = 1;
/* There may be more, so we don't break out of the loop. */
}
/* relocate symbol table(s). */
vmap_symtab (vp);
/* if there was no matching *vp, we must perforce create the sucker(s) */
if (!got_one && !retried)
{
add_vmap (ldi);
++retried;
goto retry;
}
} while (ldi->ldinfo_next
&& (ldi = (void *) (ldi->ldinfo_next + (char *) ldi)));
/* There may be more, so we don't break out of the loop. */
}
/* if there was no matching *vp, we must perforce create the sucker(s) */
if (!got_one && !retried)
{
add_vmap (ldi);
++retried;
goto retry;
}
}
while (ldi->ldinfo_next
&& (ldi = (void *) (ldi->ldinfo_next + (char *) ldi)));
/* If we don't find the symfile_objfile anywhere in the ldinfo, it
is unlikely that the symbol file is relocated to the proper
@@ -581,7 +591,7 @@ symbols to the proper address).\n", gdb_stderr);
`exec_sections' need to be relocated only once, as long as the exec
file remains unchanged.
*/
*/
static void
vmap_exec ()
@@ -597,19 +607,19 @@ vmap_exec ()
if (!vmap || !exec_ops.to_sections)
error ("vmap_exec: vmap or exec_ops.to_sections == 0\n");
for (i=0; &exec_ops.to_sections[i] < exec_ops.to_sections_end; i++)
for (i = 0; &exec_ops.to_sections[i] < exec_ops.to_sections_end; i++)
{
if (STREQ(".text", exec_ops.to_sections[i].the_bfd_section->name))
if (STREQ (".text", exec_ops.to_sections[i].the_bfd_section->name))
{
exec_ops.to_sections[i].addr += vmap->tstart - vmap->tvma;
exec_ops.to_sections[i].endaddr += vmap->tstart - vmap->tvma;
}
else if (STREQ(".data", exec_ops.to_sections[i].the_bfd_section->name))
else if (STREQ (".data", exec_ops.to_sections[i].the_bfd_section->name))
{
exec_ops.to_sections[i].addr += vmap->dstart - vmap->dvma;
exec_ops.to_sections[i].endaddr += vmap->dstart - vmap->dvma;
}
else if (STREQ(".bss", exec_ops.to_sections[i].the_bfd_section->name))
else if (STREQ (".bss", exec_ops.to_sections[i].the_bfd_section->name))
{
exec_ops.to_sections[i].addr += vmap->dstart - vmap->dvma;
exec_ops.to_sections[i].endaddr += vmap->dstart - vmap->dvma;
@@ -617,18 +627,18 @@ vmap_exec ()
}
}
/* xcoff_relocate_symtab - hook for symbol table relocation.
/* xcoff_relocate_symtab - hook for symbol table relocation.
also reads shared libraries.. */
void
xcoff_relocate_symtab (pid)
unsigned int pid;
{
#define MAX_LOAD_SEGS 64 /* maximum number of load segments */
#define MAX_LOAD_SEGS 64 /* maximum number of load segments */
struct ld_info *ldi;
ldi = (void *) alloca(MAX_LOAD_SEGS * sizeof (*ldi));
ldi = (void *) alloca (MAX_LOAD_SEGS * sizeof (*ldi));
/* According to my humble theory, AIX has some timing problems and
when the user stack grows, kernel doesn't update stack info in time
@@ -639,7 +649,7 @@ xcoff_relocate_symtab (pid)
errno = 0;
ptrace (PT_LDINFO, pid, (PTRACE_ARG3_TYPE) ldi,
MAX_LOAD_SEGS * sizeof(*ldi), (int *) ldi);
MAX_LOAD_SEGS * sizeof (*ldi), (int *) ldi);
if (errno)
perror_with_name ("ptrace ldinfo");
@@ -675,13 +685,13 @@ xcoff_relocate_core (target)
int buffer_size = LDINFO_SIZE;
char *buffer = xmalloc (buffer_size);
struct cleanup *old = make_cleanup (free_current_contents, &buffer);
/* FIXME, this restriction should not exist. For now, though I'll
avoid coredumps with error() pending a real fix. */
if (vmap == NULL)
error
("Can't debug a core file without an executable file (on the RS/6000)");
ldinfo_sec = bfd_get_section_by_name (core_bfd, ".ldinfo");
if (ldinfo_sec == NULL)
{
@@ -715,13 +725,14 @@ xcoff_relocate_core (target)
goto bfd_err;
if (buffer[i++] == '\0')
++names_found;
} while (names_found < 2);
}
while (names_found < 2);
ldip = (struct ld_info *) buffer;
/* Can't use a file descriptor from the core file; need to open it. */
ldip->ldinfo_fd = -1;
/* The first ldinfo is for the exec file, allocated elsewhere. */
if (offset == 0)
vp = vmap;
@@ -737,13 +748,13 @@ xcoff_relocate_core (target)
vp->dend = vp->dstart + ldip->ldinfo_datasize;
/* The run time loader maps the file header in addition to the text
section and returns a pointer to the header in ldinfo_textorg.
Adjust the text start address to point to the real start address
of the text section. */
section and returns a pointer to the header in ldinfo_textorg.
Adjust the text start address to point to the real start address
of the text section. */
vp->tstart += vp->toffs;
/* Unless this is the exec file,
add our sections to the section table for the core target. */
add our sections to the section table for the core target. */
if (vp != vmap)
{
int count;
@@ -753,7 +764,7 @@ xcoff_relocate_core (target)
/* We must update the to_sections field in the core_ops structure
now to avoid dangling pointer dereferences. */
update_coreops = core_ops.to_sections == target->to_sections;
count = target->to_sections_end - target->to_sections;
count += 2;
target->to_sections = (struct section_table *)
@@ -775,7 +786,7 @@ xcoff_relocate_core (target)
stp->addr = vp->tstart;
stp->endaddr = vp->tend;
stp++;
stp->bfd = vp->bfd;
stp->the_bfd_section = bfd_get_section_by_name (stp->bfd, ".data");
stp->addr = vp->dstart;
@@ -783,7 +794,8 @@ xcoff_relocate_core (target)
}
vmap_symtab (vp);
} while (ldip->ldinfo_next != 0);
}
while (ldip->ldinfo_next != 0);
vmap_exec ();
breakpoint_re_set ();
do_cleanups (old);