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

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* alpha-tdep.c (heuristic_proc_start): Use vm_min_address
from gdbarch_tdep rather than a constant.
(alpha_gdbarch_init): Initialize tdep->vm_min_address to
the default text address for all Alpha Unix ABIs.
(alpha_dump_tdep): Report the value of tdep->vm_min_address.
* config/alpha/tm-alpha.h (VM_MIN_ADDRESS): Delete.
This commit is contained in:
Jason Thorpe 2002-04-21 17:30:09 +00:00
parent dc129d8238
commit d9b023ccd4
4 changed files with 24 additions and 8 deletions
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10
gdb/ChangeLog
View file

@ -1,3 +1,13 @@
2002-04-21 Jason Thorpe <thorpej@wasabisystems.com>
* alpha-tdep.h (gdbarch_tdep): Add vm_min_address member.
* alpha-tdep.c (heuristic_proc_start): Use vm_min_address
from gdbarch_tdep rather than a constant.
(alpha_gdbarch_init): Initialize tdep->vm_min_address to
the default text address for all Alpha Unix ABIs.
(alpha_dump_tdep): Report the value of tdep->vm_min_address.
* config/alpha/tm-alpha.h (VM_MIN_ADDRESS): Delete.
2002-04-21 Jason Thorpe <thorpej@wasabisystems.com>
* alpha-tdep.h: New file. Includes several Alpha target constants

15
gdb/alpha-tdep.c
View file

@ -617,6 +617,7 @@ alpha_about_to_return (CORE_ADDR pc)
static CORE_ADDR
heuristic_proc_start (CORE_ADDR pc)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
CORE_ADDR start_pc = pc;
CORE_ADDR fence = start_pc - heuristic_fence_post;
@ -624,8 +625,8 @@ heuristic_proc_start (CORE_ADDR pc)
return 0;
if (heuristic_fence_post == UINT_MAX
|| fence < VM_MIN_ADDRESS)
fence = VM_MIN_ADDRESS;
|| fence < tdep->vm_min_address)
fence = tdep->vm_min_address;
/* search back for previous return */
for (start_pc -= 4;; start_pc -= 4)
@ -639,7 +640,7 @@ heuristic_proc_start (CORE_ADDR pc)
{
static int blurb_printed = 0;
if (fence == VM_MIN_ADDRESS)
if (fence == tdep->vm_min_address)
warning ("Hit beginning of text section without finding");
else
warning ("Hit heuristic-fence-post without finding");
@ -1960,6 +1961,10 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->abi_name = "<invalid>";
}
/* Lowest text address. This is used by heuristic_proc_start() to
decide when to stop looking. */
tdep->vm_min_address = (CORE_ADDR) 0x120000000;
/* Type sizes */
set_gdbarch_short_bit (gdbarch, 16);
set_gdbarch_int_bit (gdbarch, 32);
@ -2073,6 +2078,10 @@ alpha_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
internal_error (__FILE__, __LINE__,
"alpha_dump_tdep: illegal setting of tdep->alpha_abi (%d)",
(int) tdep->alpha_abi);
fprintf_unfiltered (file,
"alpha_dump_tdep: vm_min_address = 0x%lx\n",
(long) tdep->vm_min_address);
}
void

2
gdb/alpha-tdep.h
View file

@ -94,6 +94,8 @@ struct gdbarch_tdep
{
enum alpha_abi alpha_abi; /* OS/ABI of inferior. */
const char *abi_name; /* Name of the above. */
CORE_ADDR vm_min_address; /* used by heuristic_proc_start */
};
#endif /* ALPHA_TDEP_H */

5
gdb/config/alpha/tm-alpha.h
View file

@ -99,11 +99,6 @@ 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 *);
/* This is used by heuristic_proc_start. It should be shot it the head. */
#ifndef VM_MIN_ADDRESS
#define VM_MIN_ADDRESS (CORE_ADDR)0x120000000
#endif
/* If PC is in a shared library trampoline code, return the PC
where the function itself actually starts. If not, return 0. */
#define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc)