From 1c4f98663635995919a2fe7f9c4cbf630ae238d2 Mon Sep 17 00:00:00 2001
From: Austin Foxley <austinf@cetoncorp.com>
Date: Fri, 11 Dec 2009 03:46:37 -0800
Subject: get x86_64 nptl building

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
---
 libpthread/nptl/sysdeps/x86_64/sysdep.h | 114 ++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 libpthread/nptl/sysdeps/x86_64/sysdep.h

(limited to 'libpthread/nptl/sysdeps/x86_64/sysdep.h')

diff --git a/libpthread/nptl/sysdeps/x86_64/sysdep.h b/libpthread/nptl/sysdeps/x86_64/sysdep.h
new file mode 100644
index 000000000..122270f91
--- /dev/null
+++ b/libpthread/nptl/sysdeps/x86_64/sysdep.h
@@ -0,0 +1,114 @@
+/* Assembler macros for x86-64.
+   Copyright (C) 2001, 2002, 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.  */
+
+#include <sysdeps/generic/sysdep.h>
+
+#ifdef	__ASSEMBLER__
+
+/* Syntactic details of assembler.  */
+
+#ifdef HAVE_ELF
+
+/* ELF uses byte-counts for .align, most others use log2 of count of bytes.  */
+#define ALIGNARG(log2) 1<<log2
+/* For ELF we need the `.type' directive to make shared libs work right.  */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
+
+/* In ELF C symbols are asm symbols.  */
+#undef	NO_UNDERSCORES
+#define NO_UNDERSCORES
+
+#else
+
+#define ALIGNARG(log2) log2
+#define ASM_TYPE_DIRECTIVE(name,type)	/* Nothing is specified.  */
+#define ASM_SIZE_DIRECTIVE(name)	/* Nothing is specified.  */
+
+#endif
+
+
+/* Define an entry point visible from C.  */
+#define	ENTRY(name)							      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
+  .align ALIGNARG(4);							      \
+  C_LABEL(name)								      \
+  cfi_startproc;							      \
+  CALL_MCOUNT
+
+#undef	END
+#define END(name)							      \
+  cfi_endproc;								      \
+  ASM_SIZE_DIRECTIVE(name)
+
+/* If compiled for profiling, call `mcount' at the start of each function.  */
+#ifdef	PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+   to locate our caller, so push one just for its benefit.  */
+#define CALL_MCOUNT                                                          \
+  pushq %rbp;                                                                \
+  cfi_adjust_cfa_offset(8);                                                  \
+  movq %rsp, %rbp;                                                           \
+  cfi_def_cfa_register(%rbp);                                                \
+  call JUMPTARGET(mcount);                                                   \
+  popq %rbp;                                                                 \
+  cfi_def_cfa(rsp,8);
+#else
+#define CALL_MCOUNT		/* Do nothing.  */
+#endif
+
+#ifdef	NO_UNDERSCORES
+/* Since C identifiers are not normally prefixed with an underscore
+   on this system, the asm identifier `syscall_error' intrudes on the
+   C name space.  Make sure we use an innocuous name.  */
+#define	syscall_error	__syscall_error
+#define mcount		_mcount
+#endif
+
+#define	PSEUDO(name, syscall_name, args)				      \
+lose:									      \
+  jmp JUMPTARGET(syscall_error)						      \
+  .globl syscall_error;							      \
+  ENTRY (name)								      \
+  DO_CALL (syscall_name, args);						      \
+  jb lose
+
+#undef	PSEUDO_END
+#define	PSEUDO_END(name)						      \
+  END (name)
+
+#undef JUMPTARGET
+#ifdef PIC
+#define JUMPTARGET(name)	name##@PLT
+#else
+#define JUMPTARGET(name)	name
+#endif
+
+/* Local label name for asm code. */
+#ifndef L
+# ifdef HAVE_ELF
+/* ELF-like local names start with `.L'.  */
+#  define L(name)	.L##name
+# else
+#  define L(name)	name
+# endif
+#endif
+
+#endif	/* __ASSEMBLER__ */
-- 
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