some source files for x86_64

1 files changed, 45 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/x86_64/__longjmp.S b/libc/sysdeps/linux/x86_64/__longjmp.S
new file mode 100644
index 000000000..40e459e27
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/__longjmp.S
@@ -0,0 +1,45 @@
+/* Copyright (C) 2001, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+/* Jump to the position specified by ENV, causing the
+   setjmp call there to return VAL, or 1 if VAL is 0.
+   void __longjmp (__jmp_buf env, int val).  */
+.globl __longjmp;
+.type	__longjmp,@function;
+.align 16;
+__longjmp:
+	/* Restore registers.  */
+	movq (JB_RBX*8)(%rdi),%rbx
+	movq (JB_RBP*8)(%rdi),%rbp
+	movq (JB_R12*8)(%rdi),%r12
+	movq (JB_R13*8)(%rdi),%r13
+	movq (JB_R14*8)(%rdi),%r14
+	movq (JB_R15*8)(%rdi),%r15
+	/* Set return value for setjmp.  */
+	test %esi,%esi
+	mov $01,%eax
+	cmove %eax,%esi
+	mov %esi, %eax
+	movq (JB_PC*8)(%rdi),%rdx
+	movq (JB_RSP*8)(%rdi),%rsp
+	jmpq *%rdx
+.size __longjmp,.-__longjmp;