On Wed, Jul 17, 2024 at 5:40 PM Ian Lance Taylor <i...@golang.org> wrote:
>
> This libbacktrace patch improves backtrace_print when there is no
> debug info. It falls back to calling backtrace_syminfo, and uses that
> to print an offset from a symbol if it can. This is a partial fix for
> https://github.com/ianlancetaylor/libbacktrace/issues/59.
> Bootstrapped and ran libbacktrace testsuite on x86_64-pc-linux-gnu.
> Committed to mainline.
And this patch corrects a bug in that patch.
Ian
c7c8bcdbb412c71c9522f7874d43a3bd9319b940
diff --git a/libbacktrace/print.c b/libbacktrace/print.c
index 70f5a93c49d..d4637af9a4f 100644
--- a/libbacktrace/print.c
+++ b/libbacktrace/print.c
@@ -77,7 +77,7 @@ static void print_syminfo_callback (void *data, uintptr_t pc,
fprintf (pdata->f, "0x%lx ???\n\t%s+0x%lx:0\n",
(unsigned long) pc,
symname,
- pc - symval);
+ (unsigned long) (pc - symval));
}
/* Print one level of a backtrace. */
