some source files for x86_64

1 files changed, 46 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/x86_64/setjmp.S b/libc/sysdeps/linux/x86_64/setjmp.S
new file mode 100644
index 000000000..cb560248b
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/setjmp.S
@@ -0,0 +1,46 @@
+/* setjmp for x86-64.
+   Copyright (C) 2001, 2003 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>
+
+.globl __sigsetjmp;
+.type    __sigsetjmp,@function
+.align 4;
+__sigsetjmp:
+	/* Save registers.  */
+	movq %rbx, (JB_RBX*8)(%rdi)
+	movq %rbp, (JB_RBP*8)(%rdi)
+	movq %r12, (JB_R12*8)(%rdi)
+	movq %r13, (JB_R13*8)(%rdi)
+	movq %r14, (JB_R14*8)(%rdi)
+	movq %r15, (JB_R15*8)(%rdi)
+	leaq 8(%rsp), %rdx	/* Save SP as it will be after we return.  */
+	movq %rdx, (JB_RSP*8)(%rdi)
+	movq (%rsp), %rax	/* Save PC we are returning to now.  */
+	movq %rax, (JB_PC*8)(%rdi)
+
+	/* Make a tail call to __sigjmp_save; it takes the same args.  */
+#ifdef	__PIC__
+	jmp __sigjmp_save@PLT
+#else
+	jmp __sigjmp_save
+#endif
+.size __sigsetjmp,.-__sigsetjmp;