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Read cross-core files on Mach 386.

This commit is contained in:
John Gilmore 1991-10-11 00:27:41 +00:00
parent 1a31570390
commit 074274252f
3 changed files with 36 additions and 36 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
Thu Oct 10 17:25:47 1991 John Gilmore (gnu at cygnus.com)
* mach386-xdep.c: Even when cross-compiling, leave in the
core-file reading code.
* core.c (get_core_registers): Avoid coredump if no .reg section.
Wed Oct 9 17:03:34 1991 John Gilmore (gnu at cygnus.com)
* mipsread.c, coffread.c: initialise TYPE_VPTR_FIELDNO to -1.

2
gdb/core.c
View File

@ -396,6 +396,7 @@ get_core_registers (regno)
char *the_regs;
reg_sec = bfd_get_section_by_name (core_bfd, ".reg");
if (!reg_sec) goto cant;
size = bfd_section_size (core_bfd, reg_sec);
the_regs = alloca (size);
if (bfd_get_section_contents (core_bfd, reg_sec, the_regs,
@ -405,6 +406,7 @@ get_core_registers (regno)
}
else
{
cant:
fprintf (stderr, "Couldn't fetch registers from core file: %s\n",
bfd_errmsg (bfd_error));
}

64
gdb/mach386-xdep.c
View File

@ -3,21 +3,19 @@
This file is part of GDB.
GDB is free software; you can redistribute it and/or modify
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 1, or (at your option)
any later version.
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GDB is distributed in the hope that it will be useful,
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 GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#if defined (GDB_TARGET_IS_MACH386)
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include "defs.h"
@ -27,6 +25,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "signame.h"
#include "gdbcore.h"
#if defined (GDB_TARGET_IS_MACH386)
#include <sys/param.h>
#include <sys/dir.h>
#include <sys/user.h>
@ -103,10 +103,25 @@ store_inferior_registers (regno)
ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers);
}
/* Machine-dependent code which would otherwise be in core.c */
#else /* Not mach386 target. */
/* These functions shouldn't be called when we're cross-debugging. */
void
fetch_inferior_registers ()
{
}
/* ARGSUSED */
store_inferior_registers (regno)
int regno;
{
}
#endif /* Not mach386 target. */
/* Work with core files, for GDB. */
void
fetch_core_registers (core_reg_sect, core_reg_size, which)
char *core_reg_sect;
@ -123,10 +138,12 @@ fetch_core_registers (core_reg_sect, core_reg_size, which)
break;
case 2:
#ifdef FP0_REGNUM
bcopy (core_reg_sect,
&registers[REGISTER_BYTE (FP0_REGNUM)],
core_reg_size); /* FIXME, probably bogus */
#if 0
#endif
#ifdef FPC_REGNUM
bcopy (&corestr.c_fpu.f_fpstatus.f_ctrl,
&registers[REGISTER_BYTE (FPC_REGNUM)],
sizeof corestr.c_fpu.f_fpstatus -
@ -135,28 +152,3 @@ fetch_core_registers (core_reg_sect, core_reg_size, which)
break;
}
}
#else /* Not mach386 target. */
/* These functions shouldn't be called when we're cross-debugging. */
void
fetch_inferior_registers ()
{
}
/* ARGSUSED */
store_inferior_registers (regno)
int regno;
{
}
/* ARGSUSED */
void
fetch_core_registers (core_reg_sect, core_reg_size, which)
char *core_reg_sect;
unsigned core_reg_size;
int which;
{
}
#endif /* Not mach386 target. */