From 943072f45ca34caf7b55db16f412bed94f7c27bc Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Tue, 18 Jun 2013 09:45:37 +0000
Subject: 	* Makefile.in (VPATH): Drop CONFIG_DIR. 
 (EXTRA_DLL_OFILES): Remove. 	(DLL_OFILES): Remove EXTRA_DLL_OFILES. 
 (ASFLAGS): Define as -D_WIN64 on x86_64. 	(GMON_OFILES): Add
 mcountFunc.o. 	($(srcdir)/$(TLSOFFSETS_H)): Use target_cpu rather than
 CONFIG_DIR. 	* configure.ac (CONFIG_DIR): Remove definition. 	*
 configure: Regenerate. 	* gcrt0.c: Use latest version from Mingw-w64
 project. 	* gmon.c: Ditto. 	* gmon.h: Ditto. 	* mcount.c:
 Ditto. 	* mcountFunc.S: Ditto, new file. 	* profil.c: Ditto. 
 * profil.h: Ditto. 	* config: Remove entire directory.

---
 winsup/cygwin/mcountFunc.S | 115 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 winsup/cygwin/mcountFunc.S

(limited to 'winsup/cygwin/mcountFunc.S')

diff --git a/winsup/cygwin/mcountFunc.S b/winsup/cygwin/mcountFunc.S
new file mode 100644
index 000000000..e1b9136cf
--- /dev/null
+++ b/winsup/cygwin/mcountFunc.S
@@ -0,0 +1,115 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+#include <_mingw_mac.h>
+
+	.file "mcountFunc.S"
+	.text
+#ifdef _WIN64
+	.align 8
+#else
+	.align 4
+#endif
+
+/* gcc always assumes the mcount public symbol has a single leading underscore
+   for our target.  See gcc/config/i386.h; it isn't overridden in
+   config/i386/cygming.h or any other places for mingw */
+.globl _mcount
+        .def    _mcount;  .scl    2;      .type   32;     .endef
+_mcount:
+#ifndef _WIN64
+	push %ebp
+	mov %esp, %ebp
+	push %eax
+	push %ecx
+	push %edx
+	movl 4(%ebp),%edx
+	movl (%ebp),%eax
+	movl 4(%eax),%eax
+	push %edx
+	push %eax
+	call __MINGW_USYMBOL(_mcount_private)
+	add $8, %esp
+	pop %edx
+	pop %ecx
+	pop %eax
+	leave
+	ret
+#else
+	push %rbp
+	mov %rsp, %rbp
+	push %rax
+	push %rcx
+	push %rdx
+	push %r8
+	push %r9
+	push %r10
+	push %r11
+	movq 8(%rbp),%rdx
+	movq (%rbp),%rax
+	movq 8(%rax),%rcx
+	sub $40, %rsp
+	call __MINGW_USYMBOL(_mcount_private)
+	add $40, %rsp
+	pop %r11
+	pop %r10
+	pop %r9
+	pop %r8
+	pop %rdx
+	pop %rcx
+	pop %rax
+	leave
+	ret
+#endif
+
+/* gcc always assumes the mcount public symbol has a single leading underscore
+   for our target.  See gcc/config/i386.h; it isn't overridden in
+   config/i386/cygming.h or any other places for mingw.  This is the entry
+   for new prologue mechanism required for x64 seh calling convention.  */
+.globl __fentry__
+        .def    _mcount_top;  .scl    2;      .type   32;     .endef
+__fentry__:
+#ifndef _WIN64
+	push %ebp
+	mov %esp, %ebp
+	push %eax
+	push %ecx
+	push %edx
+	movl 4(%ebp),%edx
+	movl 8(%ebp),%eax
+	push %edx
+	push %eax
+	call __MINGW_USYMBOL(_mcount_private)
+	add $8, %esp
+	pop %edx
+	pop %ecx
+	pop %eax
+	leave
+	ret
+#else
+	push %rbp
+	mov %rsp, %rbp
+	push %rax
+	push %rcx
+	push %rdx
+	push %r8
+	push %r9
+	push %r10
+	push %r11
+	movq 8(%rbp),%rdx
+	movq 16(%rbp),%rcx
+	sub $40, %rsp
+	call __MINGW_USYMBOL(_mcount_private)
+	add $40, %rsp
+	pop %r11
+	pop %r10
+	pop %r9
+	pop %r8
+	pop %rdx
+	pop %rcx
+	pop %rax
+	leave
+	ret
+#endif
-- 
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