From 6ace0756af2d682fbd2def08e4777c6f66f0e34f Mon Sep 17 00:00:00 2001
From: Chris Demetriou <cgd@google.com>
Date: Tue, 3 May 2011 16:22:03 -0700
Subject: [PATCH] morestack.S (__i686.get_pc_thunk.bx): New.
2011-05-03 Chris Demetriou <cgd@google.com>
* config/i386/morestack.S (__i686.get_pc_thunk.bx): New.
From-SVN: r173345
---
libgcc/ChangeLog | 4 ++++
libgcc/config/i386/morestack.S | 18 ++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 0892085c05f2..ac99ddb7d340 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2011-05-03 Chris Demetriou <cgd@google.com>
+
+ * config/i386/morestack.S (__i686.get_pc_thunk.bx): New.
+
2011-03-22 Joseph Myers <joseph@codesourcery.com>
* config.host (alpha*-*-gnu*, arc-*-elf*, arm*-*-netbsd*,
diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S
index 10fa1fdf73a4..5db5e502848a 100644
--- a/libgcc/config/i386/morestack.S
+++ b/libgcc/config/i386/morestack.S
@@ -449,6 +449,24 @@ __morestack:
.size __morestack, . - __morestack
#endif
+#if !defined(__x86_64__) && defined(__PIC__)
+# Output the thunk to get PC into bx, since we use it above.
+# (__i686 was already undef'd above; don't need to worry about it here.)
+ .section .text.__i686.get_pc_thunk.bx,"axG",@progbits,__i686.get_pc_thunk.bx,comdat
+ .globl __i686.get_pc_thunk.bx
+ .hidden __i686.get_pc_thunk.bx
+#ifdef __ELF__
+ .type __i686.get_pc_thunk.bx, @function
+#endif
+__i686.get_pc_thunk.bx:
+ .cfi_startproc
+ movl (%esp), %ebx
+ ret
+ .cfi_endproc
+#ifdef __ELF__
+ .size __i686.get_pc_thunk.bx, . - __i686.get_pc_thunk.bx
+#endif
+#endif
# The exception table. This tells the personality routine to execute
# the exception handler.
--
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