mirror/libbacktrace
1
0
Fork 0
mirror of https://github.com/ianlancetaylor/libbacktrace.git synced 2026-03-27 04:29:06 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

libbacktrace: use ELF symbol table if no debug info available

Browse Source 
PR libbacktrace/97080
	* fileline.c (backtrace_syminfo_to_full_callback): New function.
	(backtrace_syminfo_to_full_error_callback): New function.
	* elf.c (elf_nodebug): Call syminfo_fn if possible.
	* internal.h (struct backtrace_call_full): Define.
	(backtrace_syminfo_to_full_callback): Declare.
	(backtrace_syminfo_to_full_error_callback): Declare.
	* mtest.c (f3): Only check all[i] if data.index permits.
This commit is contained in:
Ian Lance Taylor
2020-09-16 17:03:52 -07:00
parent 753968c2e8
commit c8a81d4e3a
4 changed files with 115 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
fileline.c
View File

@@ -317,3 +317,30 @@ backtrace_syminfo (struct backtrace_state *state, uintptr_t pc,
state->syminfo_fn (state, pc, callback, error_callback, data);
return 1;
}
/* A backtrace_syminfo_callback that can call into a
backtrace_full_callback, used when we have a symbol table but no
debug info. */
void
backtrace_syminfo_to_full_callback (void *data, uintptr_t pc,
const char *symname,
uintptr_t symval ATTRIBUTE_UNUSED,
uintptr_t symsize ATTRIBUTE_UNUSED)
{
struct backtrace_call_full *bdata = (struct backtrace_call_full *) data;
bdata->ret = bdata->full_callback (bdata->full_data, pc, NULL, 0, symname);
}
/* An error callback that corresponds to
backtrace_syminfo_to_full_callback. */
void
backtrace_syminfo_to_full_error_callback (void *data, const char *msg,
int errnum)
{
struct backtrace_call_full *bdata = (struct backtrace_call_full *) data;
bdata->full_error_callback (bdata->full_data, msg, errnum);
}