From: Richard Henderson <rth@redhat.com>
Date: Thu, 23 Apr 1998 22:46:39 +0000 (+0000)
Subject: (_JMPBUF_UNWINDS): Added.
X-Git-Tag: glibc-2.16-ports-before-merge~3253
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4af6e4ade676d122e1cad3a8e68400907d615a91;p=thirdparty%2Fglibc.git

(_JMPBUF_UNWINDS): Added.
---

diff --git a/sysdeps/alpha/bits/setjmp.h b/sysdeps/alpha/bits/setjmp.h
index de370192184..af0b5ae5775 100644
--- a/sysdeps/alpha/bits/setjmp.h
+++ b/sysdeps/alpha/bits/setjmp.h
@@ -74,4 +74,10 @@
 
 #ifndef __ASSEMBLY__
 typedef long int __jmp_buf[17];
+
+/* Test if longjmp to JMPBUF would unwind the frame containing a local
+   variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(_jmpbuf, _address)				\
+  ({ register void *_sp __asm__("$30"); void *_addr = (_address);	\
+     _sp <= _addr && _addr < (void *)((_jmpbuf)[JB_SP]); })
 #endif