From: Roland McGrath <roland@hack.frob.com>
Date: Tue, 11 Mar 2014 17:59:01 +0000 (-0700)
Subject: ARM: Fix up setjmp/longjmp changes sfi_* macro use.
X-Git-Tag: glibc-2.20~771
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=d7706c32589ef32f4bed3122a2f5c861b214149e;p=glibc.git

ARM: Fix up setjmp/longjmp changes sfi_* macro use.
---

diff --git a/ChangeLog b/ChangeLog
index 3312dcb5f8..3a589d8b4a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2014-03-11  Roland McGrath  <roland@hack.frob.com>
+
+	* sysdeps/arm/setjmp.S: Use sfi_breg on stores of mangled registers.
+	* sysdeps/arm/__longjmp.S: Use sfi_breg on loads of mangled registers.
+	Move sfi_sp use from the load-multiple (that no longer sets sp) to
+	the new mov targetting sp.
+
 2014-03-11  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	[BZ #16683]
diff --git a/sysdeps/arm/__longjmp.S b/sysdeps/arm/__longjmp.S
index 08521e5374..27d1b713de 100644
--- a/sysdeps/arm/__longjmp.S
+++ b/sysdeps/arm/__longjmp.S
@@ -38,22 +38,27 @@ ENTRY (__longjmp)
 #endif
 
 #ifdef PTR_DEMANGLE
-	ldr	a4, [ip], #4
+	sfi_breg ip, \
+	ldr	a4, [\B], #4
 	PTR_DEMANGLE (a4, a4, a3, r4)
 	cfi_undefined (r4)
-	ldr	r4, [ip], #4
+	sfi_breg ip, \
+	ldr	r4, [\B], #4
 	PTR_DEMANGLE2 (r4, r4, a3)
 #else
-	ldr	a4, [ip], #4
-	ldr	r4, [ip], #4
+	sfi_breg ip, \
+	ldr	a4, [\B], #4
+	sfi_breg ip, \
+	ldr	r4, [\B], #4
 	cfi_undefined (r4)
 #endif
 	/* longjmp probe expects longjmp first argument (4@r0), second
 	   argument (-4@r1), and target address (4@r4), respectively.  */
 	LIBC_PROBE (longjmp, 3, 4@r0, -4@r1, 4@r4)
+	sfi_sp \
 	mov	sp, a4
 	mov	lr, r4
-	sfi_sp sfi_breg ip, \
+	sfi_breg ip, \
 	ldmia	\B!, JMP_BUF_REGLIST
 	cfi_restore (v1)
 	cfi_restore (v2)
diff --git a/sysdeps/arm/setjmp.S b/sysdeps/arm/setjmp.S
index 5e55ca5061..17a16c9b5d 100644
--- a/sysdeps/arm/setjmp.S
+++ b/sysdeps/arm/setjmp.S
@@ -36,12 +36,16 @@ ENTRY (__sigsetjmp)
 #ifdef PTR_MANGLE
 	mov	a4, sp
 	PTR_MANGLE2 (a4, a4, a3)
-	str	a4, [ip], #4
+	sfi_breg ip, \
+	str	a4, [\B], #4
 	PTR_MANGLE2 (a4, lr, a3)
-	str	a4, [ip], #4
+	sfi_breg ip, \
+	str	a4, [\B], #4
 #else
-	str	sp, [ip], #4
-	str	lr, [ip], #4
+	sfi_breg ip, \
+	str	sp, [\B], #4
+	sfi_breg ip, \
+	str	lr, [\B], #4
 #endif
 	/* Save registers */
 	sfi_breg ip, \