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* alpha-tdep.h (gdbarch_tdep): Add sigcontext_addr member. 

* alpha-tdep.c (alpha_sigcontext_addr): New function.
(alpha_find_saved_regs): Use alpha_sigcontext_addr.
(alpha_gdbarch_init): Initialize tdep->sigcontext_addr.
* alpha-linux-tdep.c: Include frame.h.
(alpha_linux_sigcontext_addr): New function.
(alpha_linux_init_abi): Set tdep->sigcontext_addr to
alpha_linux_sigcontext_addr.
* alpha-osf1-tdep.c: Include gdbcore.h.
(alpha_osf1_sigcontext_addr): New function.
(alpha_osf1_init_abi): Set tdep->sigcontext_addr to
alpha_osf1_sigcontext_addr.
* config/alpha/tm-alpha.h (SIGCONTEXT_ADDR): Remove.
* config/alpha/tm-alphalinux.h (SIGCONTEXT_ADDR): Remove.
This commit is contained in:
Jason Thorpe 2002-04-26 07:05:35 +00:00
parent fd55a5dffb
commit 5868c862e2
7 changed files with 56 additions and 13 deletions
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17
gdb/ChangeLog
View File

@ -1,3 +1,20 @@
2002-04-26 Jason Thorpe <thorpej@wasabisystems.com>
* alpha-tdep.h (gdbarch_tdep): Add sigcontext_addr member.
* alpha-tdep.c (alpha_sigcontext_addr): New function.
(alpha_find_saved_regs): Use alpha_sigcontext_addr.
(alpha_gdbarch_init): Initialize tdep->sigcontext_addr.
* alpha-linux-tdep.c: Include frame.h.
(alpha_linux_sigcontext_addr): New function.
(alpha_linux_init_abi): Set tdep->sigcontext_addr to
alpha_linux_sigcontext_addr.
* alpha-osf1-tdep.c: Include gdbcore.h.
(alpha_osf1_sigcontext_addr): New function.
(alpha_osf1_init_abi): Set tdep->sigcontext_addr to
alpha_osf1_sigcontext_addr.
* config/alpha/tm-alpha.h (SIGCONTEXT_ADDR): Remove.
* config/alpha/tm-alphalinux.h (SIGCONTEXT_ADDR): Remove.
2002-04-26 Andrew Cagney <ac131313@redhat.com>
* stack.c (selected_frame_level):

8
gdb/alpha-linux-tdep.c
View File

@ -19,6 +19,7 @@
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
#include "gdbcore.h"
#include "value.h"
@ -91,6 +92,12 @@ alpha_linux_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
return (alpha_linux_sigtramp_offset (pc) >= 0);
}
static CORE_ADDR
alpha_linux_sigcontext_addr (struct frame_info *frame)
{
return (frame->frame - 0x298); /* sizeof(struct sigcontext) */
}
static void
alpha_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@ -100,6 +107,7 @@ alpha_linux_init_abi (struct gdbarch_info info,
set_gdbarch_pc_in_sigtramp (gdbarch, alpha_linux_pc_in_sigtramp);
tdep->dynamic_sigtramp_offset = alpha_linux_sigtramp_offset;
tdep->sigcontext_addr = alpha_linux_sigcontext_addr;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;

9
gdb/alpha-osf1-tdep.c
View File

@ -20,6 +20,7 @@
#include "defs.h"
#include "frame.h"
#include "gdbcore.h"
#include "value.h"
#include "alpha-tdep.h"
@ -43,6 +44,13 @@ alpha_osf1_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
return (func_name != NULL && STREQ ("__sigtramp", func_name));
}
static CORE_ADDR
alpha_osf1_sigcontext_addr (struct frame_info *frame)
{
return (read_memory_integer (frame->next ? frame->next->frame
: frame->frame, 8));
}
static void
alpha_osf1_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@ -52,6 +60,7 @@ alpha_osf1_init_abi (struct gdbarch_info info,
set_gdbarch_pc_in_sigtramp (gdbarch, alpha_osf1_pc_in_sigtramp);
tdep->skip_sigtramp_frame = alpha_osf1_skip_sigtramp_frame;
tdep->sigcontext_addr = alpha_osf1_sigcontext_addr;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;

19
gdb/alpha-tdep.c
View File

@ -344,6 +344,17 @@ alpha_register_virtual_size (int regno)
}
static CORE_ADDR
alpha_sigcontext_addr (struct frame_info *fi)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep->sigcontext_addr)
return (tdep->sigcontext_addr (fi));
return (0);
}
/* Guaranteed to set frame->saved_regs to some values (it never leaves it
NULL). */
@ -372,7 +383,12 @@ alpha_find_saved_regs (struct frame_info *frame)
{
CORE_ADDR sigcontext_addr;
sigcontext_addr = SIGCONTEXT_ADDR (frame);
sigcontext_addr = alpha_sigcontext_addr (frame);
if (sigcontext_addr == 0)
{
/* Don't know where the sigcontext is; just bail. */
return;
}
for (ireg = 0; ireg < 32; ireg++)
{
reg_position = sigcontext_addr + SIGFRAME_REGSAVE_OFF + ireg * 8;
@ -1997,6 +2013,7 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->dynamic_sigtramp_offset = NULL;
tdep->skip_sigtramp_frame = NULL;
tdep->sigcontext_addr = NULL;
tdep->jb_pc = -1; /* longjmp support not enabled by default */

4
gdb/alpha-tdep.h
View File

@ -106,6 +106,10 @@ struct gdbarch_tdep
frame. */
CORE_ADDR (*skip_sigtramp_frame) (struct frame_info *, CORE_ADDR);
/* Translate a signal handler frame into the address of the sigcontext
structure for that signal handler. */
CORE_ADDR (*sigcontext_addr) (struct frame_info *);
int jb_pc; /* Offset to PC value in jump buffer.
If htis is negative, longjmp support
will be disabled. */

6
gdb/config/alpha/tm-alpha.h
View File

@ -83,10 +83,4 @@ extern void alpha_print_extra_frame_info (struct frame_info *);
alpha_setup_arbitrary_frame (argc, argv)
extern struct frame_info *alpha_setup_arbitrary_frame (int, CORE_ADDR *);
/* Translate a signal handler frame into the address of the sigcontext
structure. */
#define SIGCONTEXT_ADDR(frame) \
(read_memory_integer ((frame)->next ? frame->next->frame : frame->frame, 8))
#endif /* TM_ALPHA_H */

6
gdb/config/alpha/tm-alphalinux.h
View File

@ -40,12 +40,6 @@ extern LONGEST alpha_linux_sigtramp_offset (CORE_ADDR);
#undef START_INFERIOR_TRAPS_EXPECTED
#define START_INFERIOR_TRAPS_EXPECTED 2
/* Translate a signal handler frame into the address of the sigcontext
structure. */
#undef SIGCONTEXT_ADDR
#define SIGCONTEXT_ADDR(frame) ((frame)->frame - 0x298)
#include "tm-linux.h"
#endif /* TM_LINUXALPHA_H */