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* ppcobsd-tdep.c: Update copyright year. Include "trad-frame.h"

Browse source 
and "tramp-frame.h".
(ppcobsd_sigtramp_cache_init): New function.
(ppcobsd_sigtramp): New variable.
(ppcobsd_init_abi): Prepend signal trampoline unwinder.
* Makefile.in (ppcobsd-tdep.o): Update dependencies.
This commit is contained in:
Mark Kettenis 2005-04-09 11:39:38 +00:00
parent 31d20a2167
commit 18b2ae85c4
3 changed files with 71 additions and 4 deletions
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9
gdb/ChangeLog
View file

@ -1,3 +1,12 @@
2005-04-09 Mark Kettenis <kettenis@gnu.org>
* ppcobsd-tdep.c: Update copyright year. Include "trad-frame.h"
and "tramp-frame.h".
(ppcobsd_sigtramp_cache_init): New function.
(ppcobsd_sigtramp): New variable.
(ppcobsd_init_abi): Prepend signal trampoline unwinder.
* Makefile.in (ppcobsd-tdep.o): Update dependencies.
2005-04-08 Andrew Cagney <cagney@gnu.org>
* MAINTAINERS (GDB/MI): Andrew Cagney, Elena Zannoni, and Fernando

5
gdb/Makefile.in
View file

@ -2373,8 +2373,9 @@ ppcnbsd-tdep.o: ppcnbsd-tdep.c $(defs_h) $(gdbcore_h) $(regcache_h) \
ppcobsd-nat.o: ppcobsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
$(ppc_tdep_h) $(ppcobsd_tdep_h)
ppcobsd-tdep.o: ppcobsd-tdep.c $(defs_h) $(arch_utils_h) $(osabi_h) \
$(regcache_h) $(regset_h) $(gdb_assert_h) $(gdb_string_h) \
$(ppc_tdep_h) $(ppcobsd_tdep_h) $(solib_svr4_h)
$(regcache_h) $(regset_h) $(trad_frame_h_ $(tramp_frame_h) \
$(gdb_assert_h) $(gdb_string_h) $(ppc_tdep_h) $(ppcobsd_tdep_h) \
$(solib_svr4_h)
ppc-sysv-tdep.o: ppc-sysv-tdep.c $(defs_h) $(gdbcore_h) $(inferior_h) \
$(regcache_h) $(value_h) $(gdb_string_h) $(gdb_assert_h) \
$(ppc_tdep_h) $(target_h) $(objfiles_h) $(infcall_h)

61
gdb/ppcobsd-tdep.c
View file

@ -1,6 +1,6 @@
/* Target-dependent code for OpenBSD/powerpc.
Copyright 2004 Free Software Foundation, Inc.
Copyright 2004, 2005 Free Software Foundation, Inc.
This file is part of GDB.
@ -24,8 +24,10 @@
#include "osabi.h"
#include "regcache.h"
#include "regset.h"
#include "gdb_assert.h"
#include "trad-frame.h"
#include "tramp-frame.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "ppc-tdep.h"
@ -111,6 +113,59 @@ ppcobsd_regset_from_core_section (struct gdbarch *gdbarch,
}
/* Signal trampolines. */
static void
ppcobsd_sigtramp_cache_init (const struct tramp_frame *self,
struct frame_info *next_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
CORE_ADDR addr, base;
int i;
base = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
addr = base + 0x18 + 2 * tdep->wordsize;
for (i = 0; i < ppc_num_gprs; i++, addr += tdep->wordsize)
{
int regnum = i + tdep->ppc_gp0_regnum;
trad_frame_set_reg_addr (this_cache, regnum, addr);
}
trad_frame_set_reg_addr (this_cache, tdep->ppc_lr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (this_cache, tdep->ppc_cr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (this_cache, tdep->ppc_xer_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (this_cache, tdep->ppc_ctr_regnum, addr);
addr += tdep->wordsize;
trad_frame_set_reg_addr (this_cache, PC_REGNUM, addr); /* SRR0? */
addr += tdep->wordsize;
/* Construct the frame ID using the function start. */
trad_frame_set_id (this_cache, frame_id_build (base, func));
}
static const struct tramp_frame ppcobsd_sigtramp =
{
SIGTRAMP_FRAME,
4,
{
{ 0x3821fff0, -1 }, /* add r1,r1,-16 */
{ 0x4e800021, -1 }, /* blrl */
{ 0x38610018, -1 }, /* addi r3,r1,24 */
{ 0x38000067, -1 }, /* li r0,103 */
{ 0x44000002, -1 }, /* sc */
{ 0x38000001, -1 }, /* li r0,1 */
{ 0x44000002, -1 }, /* sc */
{ TRAMP_SENTINEL_INSN, -1 }
},
ppcobsd_sigtramp_cache_init
};
static void
ppcobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@ -120,6 +175,8 @@ ppcobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_regset_from_core_section
(gdbarch, ppcobsd_regset_from_core_section);
tramp_frame_prepend_unwinder (gdbarch, &ppcobsd_sigtramp);
}