For each stack frame this patch prints the library path containing the
code pointed by the IP.
The output format is similar to the return value of backtrace_symbols
function found in glibc, e.g.:
> ./a.out() [0x40063d]
> ./a.out() [0x4006bb]
> ./a.out() [0x4006c6]
> /lib64/libc.so.6(__libc_start_main+0xed) [0x7fa2f8a5976d]
> ./a.out() [0x400569]
---
output.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/output.c b/output.c
index da8c419..d0bf80e 100644
--- a/output.c
+++ b/output.c
@@ -548,6 +548,14 @@ free_stringp_cb(const char **stringp, void *data)
free((char *)*stringp);
}
+
+static enum callback_status
+find_lib_ip(struct process *proc, struct library *lib, void *ip)
+{
+ arch_addr_t * my_ip = (arch_addr_t *) ip;
+ return CBS_STOP_IF((*my_ip > lib->base) && (*my_ip < lib->dyn_addr));
+}
+
void
output_right(enum tof type, struct process *proc, struct library_symbol
*libsym)
{
@@ -671,15 +679,25 @@ again:
&& proc->unwind_as != NULL) {
unw_cursor_t cursor;
unw_word_t ip, sp;
+ unw_word_t function_off_set;
+ struct library *lib = NULL;
int unwind_depth = options.bt_depth;
char fn_name[100];
+ char * temp_name;
unw_init_remote(&cursor, proc->unwind_as, proc->unwind_priv);
while (unwind_depth) {
unw_get_reg(&cursor, UNW_REG_IP, &ip);
unw_get_reg(&cursor, UNW_REG_SP, &sp);
- unw_get_proc_name(&cursor, fn_name, 100, NULL);
- fprintf(options.output, "\t\t\t%s (ip = 0x%lx)\n",
fn_name, (long) ip);
+ unw_get_proc_name(&cursor, fn_name, 100,
&function_off_set);
+
+ lib = proc_each_library(proc, NULL, find_lib_ip, &ip);
+ if ( lib )
+ temp_name = (char *) lib->pathname;
+ else
+ temp_name = "unmapped_area";
+ fprintf(options.output, " > %s(%s+0x%lx) [0x%lx]\n",
temp_name, fn_name, function_off_set, (long) ip);
+
if (unw_step(&cursor) <= 0)
break;
unwind_depth--;
--
1.7.9.5
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