From: Paul Brook <paul@codesourcery.com>
Date: Tue, 4 May 2004 11:33:56 +0000 (+0000)
Subject: crti.asm: Push an even number of registers.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=82c732f97056b5a37eb2fb82963c1983d5beba7a;p=gcc.git

crti.asm: Push an even number of registers.

	* config/arm/crti.asm: Push an even number of registers.
	* config/arm/crtn.asm: And restore them.  Load via sp.

From-SVN: r81473
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 66d5ac4ee07..6d6680dc16b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-05-04  Paul Brook  <paul@codesourcery.com>
+
+	* config/arm/crti.asm: Push an even number of registers.
+	* config/arm/crtn.asm: And restore them.  Load via sp.
+
 2004-05-04  Paolo Bonzini  <bonzini@gnu.org>
 
 	* ggc-zone.c (ggc_alloc_zone_1): Add MEM_STAT_DECL parameter.
diff --git a/gcc/config/arm/crti.asm b/gcc/config/arm/crti.asm
index ac58e44838d..3597e42b02e 100644
--- a/gcc/config/arm/crti.asm
+++ b/gcc/config/arm/crti.asm
@@ -42,12 +42,12 @@
 #ifdef __thumb__
 	.thumb
 	
-	push	{r4, r5, r6, r7, lr}
+	push	{r3, r4, r5, r6, r7, lr}
 #else
 	.arm
 	#  Create a stack frame and save any call-preserved registers
 	mov	ip, sp
-	stmdb	sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, lr, pc}
+	stmdb	sp!, {r3, r4, r5, r6, r7, r8, r9, sl, fp, ip, lr, pc}
 	sub	fp, ip, #4
 #endif
 .endm
diff --git a/gcc/config/arm/crtn.asm b/gcc/config/arm/crtn.asm
index 9ad75e3f2aa..714060ce60d 100644
--- a/gcc/config/arm/crtn.asm
+++ b/gcc/config/arm/crtn.asm
@@ -43,17 +43,19 @@
 	# sequences here, it is just not worth it.  Instead keep things
 	# simple.  Restore all the save resgisters, including the link
 	# register and then perform the correct function return instruction.
+	# We also save/restore r3 to ensure stack alignment.
 .macro FUNC_END
 #ifdef __thumb__
 	.thumb
 	
-	pop	{r4, r5, r6, r7}
+	pop	{r3, r4, r5, r6, r7}
 	pop	{r3}
 	mov	lr, r3
 #else
 	.arm
 	
-	ldmdb	fp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr}
+	sub	sp, fp, #40
+	ldmfd	sp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr}
 #endif
 	
 #if defined __THUMB_INTERWORK__ || defined __thumb__