From: Ian Lance Taylor <iant@golang.org>
Date: Tue, 13 Sep 2022 17:33:20 +0000 (-0700)
Subject: runtime: ignore __morestack function in runtime.Callers
X-Git-Tag: release-12.2.mpacbti-rel1~432
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21a3f43c6888b216ab70ef9aff5c3903ed1f218f;p=thirdparty%2Fgcc.git

runtime: ignore __morestack function in runtime.Callers

Backport from trunk.

We were ignoring all functions starting with "__morestack_", but not
the function "__morestack" itself.  Without this change, some tests
such as recover.go started failing recently, though I'm not sure
exactly what changed.

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/427935
---

diff --git a/libgo/runtime/go-callers.c b/libgo/runtime/go-callers.c
index 31783696a082..1d4dee662799 100644
--- a/libgo/runtime/go-callers.c
+++ b/libgo/runtime/go-callers.c
@@ -107,7 +107,7 @@ callback (void *data, uintptr_t pc, const char *filename, int lineno,
       p = function;
       if (__builtin_strncmp (p, "___", 3) == 0)
 	++p;
-      if (__builtin_strncmp (p, "__morestack_", 12) == 0)
+      if (__builtin_strncmp (p, "__morestack", 11) == 0)
 	return 0;
     }
   else if (filename != NULL)