From: Ulrich Drepper <drepper@redhat.com>
Date: Tue, 22 Mar 2005 09:06:17 +0000 (+0000)
Subject: Newer kernels don't like register-frames with more than 8 output registers.  Fix... 
X-Git-Tag: cvs/fedora-glibc-20050324T0715~10
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=fafee7a02c794d8452582cde56c733a320b952ea;p=glibc.git

Newer kernels don't like register-frames with more than 8 output registers.  Fix this by passing original ar.pfs to _mcount_ret_helper via r3.
---

diff --git a/sysdeps/ia64/_mcount.S b/sysdeps/ia64/_mcount.S
index aa91cb5d42..8720a9c104 100644
--- a/sysdeps/ia64/_mcount.S
+++ b/sysdeps/ia64/_mcount.S
@@ -72,6 +72,7 @@ LEAF(_mcount)
 	mov b7 = loc0
 	mov rp = in2
 	;;
+	mov r3 = in0
 	mov r8 = loc2
 	mov r15 = loc3
 	mov b6 = r2
@@ -81,10 +82,10 @@ END(_mcount)
 LOCAL_LEAF(_mcount_ret_helper)
 	.prologue
 	.altrp b7
-	.save ar.pfs, r40
+	.save ar.pfs, r3
 	.body
-	alloc r2 = ar.pfs, 0, 0, 9, 0
-	mov ar.pfs = r40
+	alloc r2 = ar.pfs, 0, 0, 8, 0
+	mov ar.pfs = r3
 	br b7
 END(_mcount_ret_helper)