MINOR: debug: report the task handler's pointer relative to main
Often in crash dumps we see unknown function pointers. Let's display
them relative to main, that helps quite a lot figure the function
from an executable, for example:
(gdb) x/a main+645360
0x4c56a0 <h1_timeout_task>: 0x2e6666666666feeb
This could be backported to 2.0.
(cherry picked from commit 516853f1cc144bfe5d0010fc12d5f385341e67ab)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 68eb0aa9e688024b4842022fc7c73984d0806d98)
Signed-off-by: Willy Tarreau <w@1wt.eu>
diff --git a/src/debug.c b/src/debug.c
index 79bea88..cfb4690 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -93,6 +93,7 @@
const struct stream *s = NULL;
const struct appctx __maybe_unused *appctx = NULL;
struct hlua __maybe_unused *hlua = NULL;
+ extern int main(int, char **);
if (!task) {
chunk_appendf(buf, "0\n");
@@ -113,9 +114,11 @@
task->call_date ? " ns ago" : "");
chunk_appendf(buf, "%s"
- " fct=%p (%s) ctx=%p",
+ " fct=%p=main%s%ld (%s) ctx=%p",
pfx,
task->process,
+ ((void *)task->process - (void *)main) < 0 ? "" : "+",
+ (long)((void *)task->process - (void *)main),
task->process == process_stream ? "process_stream" :
task->process == task_run_applet ? "task_run_applet" :
task->process == si_cs_io_cb ? "si_cs_io_cb" :