m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-12-23 20:03:43 +01:00
Code Issues Releases Activity

(_UPTi_find_unwind_table): Add dummy x86 implementation.

Browse source 
(_UPT_find_proc_info): On ia64, when returning info about the kernel's unwind
	table, copy the unwind info into a malloc'd buffer and use
	unw_local_addr_space to search the table, since the table is stored
	in local memory.

(Logical change 1.71)
This commit is contained in:
hp.com!davidm 2003-03-29 07:32:50 +00:00
parent 1acfcc74e5
commit 3a27d1661c
1 changed files with 35 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
src/_UPT_find_proc_info.c
View file

@ -149,7 +149,16 @@ _UPTi_find_unwind_table (struct UPT_info *ui, unw_addr_space_t as,
return &ui->di_cache;
}
#endif /* UNW_TARGET_IA64 */
#elif UNW_TARGET_X86
HIDDEN unw_dyn_info_t *
_UPTi_find_unwind_table (struct UPT_info *ui, unw_addr_space_t as,
char *path, unw_word_t segbase, unw_word_t mapoff)
{
return NULL;
}
#endif /* UNW_TARGET_X86 */
static unw_dyn_info_t *
get_unwind_info (struct UPT_info *ui, unw_addr_space_t as, unw_word_t ip)
@ -205,5 +214,29 @@ _UPT_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
if (!di)
return -UNW_ENOINFO;
return _Uia64_search_unwind_table (as, ip, di, pi, need_unwind_info, arg);
#if UNW_TARGET_IA64
if (di == &ui->ktab)
{
/* The kernel unwind table resides in local memory, so we have
to use the local address space to search it. Since
_UPT_put_unwind_info() has no easy way of detecting this
case, we simply make a copy of the unwind-info, so
_UPT_put_unwind_info() can always free() the unwind-info
without ill effects. */
int ret = tdep_search_unwind_table (unw_local_addr_space, ip, di, pi,
need_unwind_info, arg);
if (ret >= 0 && need_unwind_info)
{
void *mem = malloc (pi->unwind_info_size);
if (!mem)
return -UNW_ENOMEM;
memcpy (mem, pi->unwind_info, pi->unwind_info_size);
pi->unwind_info = mem;
}
return ret;
}
else
#endif
return tdep_search_unwind_table (as, ip, di, pi, need_unwind_info, arg);
}