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2004-05-01 Andrew Cagney <cagney@redhat.com>

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* alpha-tdep.c (alpha_sigtramp_frame_sniffer): Use pc_in_sigtramp.
	* alpha-tdep.h (struct gdbarch_tdep): Add pc_in_sigtramp.
	* alphafbsd-tdep.c (alphafbsd_init_abi): Update.
	* alpha-osf1-tdep.c (alpha_osf1_init_abi): Update.
	* alpha-linux-tdep.c (alpha_linux_init_abi): Update.
This commit is contained in:
Andrew Cagney 2004-05-01 15:34:49 +00:00
parent 17e20bce79
commit f2524b93f3
7 changed files with 26 additions and 11 deletions
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6
gdb/ChangeLog
View File

@ -1,5 +1,11 @@
2004-05-01 Andrew Cagney <cagney@redhat.com>
* alpha-tdep.c (alpha_sigtramp_frame_sniffer): Use pc_in_sigtramp.
* alpha-tdep.h (struct gdbarch_tdep): Add pc_in_sigtramp.
* alphafbsd-tdep.c (alphafbsd_init_abi): Update.
* alpha-osf1-tdep.c (alpha_osf1_init_abi): Update.
* alpha-linux-tdep.c (alpha_linux_init_abi): Update.
* Makefile.in (m68klinux-nat.o): Update dependencies.
* m68klinux-tdep.c: Include "trad-frame.h" and "frame-unwind.h".
(m68k_linux_sigtramp_frame_cache)

3
gdb/alpha-linux-tdep.c
View File

@ -134,11 +134,10 @@ alpha_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Hook into the MDEBUG frame unwinder. */
alpha_mdebug_init_abi (info, gdbarch);
set_gdbarch_deprecated_pc_in_sigtramp (gdbarch, alpha_linux_pc_in_sigtramp);
tdep = gdbarch_tdep (gdbarch);
tdep->dynamic_sigtramp_offset = alpha_linux_sigtramp_offset;
tdep->sigcontext_addr = alpha_linux_sigcontext_addr;
tdep->pc_in_sigtramp = alpha_linux_pc_in_sigtramp;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;
}

2
gdb/alpha-osf1-tdep.c
View File

@ -54,13 +54,13 @@ alpha_osf1_init_abi (struct gdbarch_info info,
/* Hook into the MDEBUG frame unwinder. */
alpha_mdebug_init_abi (info, gdbarch);
set_gdbarch_deprecated_pc_in_sigtramp (gdbarch, alpha_osf1_pc_in_sigtramp);
/* The next/step support via procfs on OSF1 is broken when running
on multi-processor machines. We need to use software single stepping
instead. */
set_gdbarch_software_single_step (gdbarch, alpha_software_single_step);
tdep->sigcontext_addr = alpha_osf1_sigcontext_addr;
tdep->pc_in_sigtramp = alpha_osf1_pc_in_sigtramp;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;

14
gdb/alpha-tdep.c
View File

@ -863,14 +863,20 @@ alpha_sigtramp_frame_sniffer (struct frame_info *next_frame)
CORE_ADDR pc = frame_pc_unwind (next_frame);
char *name;
/* We shouldn't even bother to try if the OSABI didn't register
a sigcontext_addr handler. */
if (!gdbarch_tdep (current_gdbarch)->sigcontext_addr)
/* NOTE: cagney/2004-04-30: Do not copy/clone this code. Instead
look at tramp-frame.h and other simplier per-architecture
sigtramp unwinders. */
/* We shouldn't even bother to try if the OSABI didn't register a
sigcontext_addr handler or pc_in_sigtramp hander. */
if (gdbarch_tdep (current_gdbarch)->sigcontext_addr == NULL)
return NULL;
if (gdbarch_tdep (current_gdbarch)->pc_in_sigtramp == NULL)
return NULL;
/* Otherwise we should be in a signal frame. */
find_pc_partial_function (pc, &name, NULL, NULL);
if (DEPRECATED_PC_IN_SIGTRAMP (pc, name))
if (gdbarch_tdep (current_gdbarch)->pc_in_sigtramp (pc, name))
return &alpha_sigtramp_frame_unwind;
return NULL;

6
gdb/alpha-tdep.h
View File

@ -83,6 +83,12 @@ struct gdbarch_tdep
the sigcontext structure for that signal handler. */
CORE_ADDR (*sigcontext_addr) (struct frame_info *);
/* Does the PC fall in a signal trampoline. */
/* NOTE: cagney/2004-04-30: Do not copy/clone this code. Instead
look at tramp-frame.h and other simplier per-architecture
sigtramp unwinders. */
int (*pc_in_sigtramp) (CORE_ADDR pc, char *name);
/* Offset of registers in `struct sigcontext'. */
int sc_pc_offset;
int sc_regs_offset;

3
gdb/alphafbsd-tdep.c
View File

@ -100,10 +100,9 @@ alphafbsd_init_abi (struct gdbarch_info info,
set_gdbarch_use_struct_convention (gdbarch, alphafbsd_use_struct_convention);
set_gdbarch_deprecated_pc_in_sigtramp (gdbarch, alphafbsd_pc_in_sigtramp);
tdep->dynamic_sigtramp_offset = alphafbsd_sigtramp_offset;
tdep->sigcontext_addr = alphafbsd_sigcontext_addr;
tdep->pc_in_sigtramp = alphafbsd_pc_in_sigtramp;
tdep->sc_pc_offset = 288;
tdep->sc_regs_offset = 24;
tdep->sc_fpregs_offset = 320;

3
gdb/alphanbsd-tdep.c
View File

@ -205,8 +205,6 @@ alphanbsd_init_abi (struct gdbarch_info info,
/* Hook into the MDEBUG frame unwinder. */
alpha_mdebug_init_abi (info, gdbarch);
set_gdbarch_deprecated_pc_in_sigtramp (gdbarch, alphanbsd_pc_in_sigtramp);
/* NetBSD/alpha does not provide single step support via ptrace(2); we
must use software single-stepping. */
set_gdbarch_software_single_step (gdbarch, alpha_software_single_step);
@ -215,6 +213,7 @@ alphanbsd_init_abi (struct gdbarch_info info,
nbsd_lp64_solib_svr4_fetch_link_map_offsets);
tdep->dynamic_sigtramp_offset = alphanbsd_sigtramp_offset;
tdep->pc_in_sigtramp = alphanbsd_pc_in_sigtramp;
tdep->sigcontext_addr = alphanbsd_sigcontext_addr;
tdep->jb_pc = 2;