From: Stan Shebs <shebs@codesourcery.com>
Date: Thu, 8 Sep 2011 22:38:29 +0000 (+0000)
Subject: 	* linux-x86-low.c (i386_emit_prologue): Save %ebx.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bf15cbda5419893123f50ba99a8e49e73bcfd29f;p=binutils-gdb.git

	* linux-x86-low.c (i386_emit_prologue): Save %ebx.
	(i386_emit_epilogue): Restore %ebx.
---

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 8fd3f2a8a60..91fee1a6b52 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,8 @@
+2011-09-08  Stan Shebs  <stan@codesourcery.com>
+
+	* linux-x86-low.c (i386_emit_prologue): Save %ebx.
+	(i386_emit_epilogue): Restore %ebx.
+
 2011-08-31  Jie Zhang  <jzhang918@gmail.com>
 
 	* server.c (step_thread): Remove definition.
diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
index dd693795730..8a3a597ebf6 100644
--- a/gdb/gdbserver/linux-x86-low.c
+++ b/gdb/gdbserver/linux-x86-low.c
@@ -2035,7 +2035,8 @@ i386_emit_prologue (void)
 {
   EMIT_ASM32 (i386_prologue,
 	    "push %ebp\n\t"
-	    "mov %esp,%ebp");
+	    "mov %esp,%ebp\n\t"
+	    "push %ebx");
   /* At this point, the raw regs base address is at 8(%ebp), and the
      value pointer is at 12(%ebp).  */
 }
@@ -2048,6 +2049,7 @@ i386_emit_epilogue (void)
 	    "mov %eax,(%ecx)\n\t"
 	    "mov %ebx,0x4(%ecx)\n\t"
 	    "xor %eax,%eax\n\t"
+	    "pop %ebx\n\t"
 	    "pop %ebp\n\t"
 	    "ret");
 }