arm/sysdep: Unify arm sysdep.h

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 0 insertions, 334 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep.h b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep.h
deleted file mode 100644
index 23c2bfc8c..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ /dev/null
@@ -1,334 +0,0 @@
-/* Copyright (C) 1992, 93, 1995-2000, 2002, 2003, 2005, 2006
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
-   ARM changes by Philip Blundell, <pjb27@cam.ac.uk>, May 1997.
-
-   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.  */
-
-#ifndef _LINUX_ARM_SYSDEP_H
-#define _LINUX_ARM_SYSDEP_H 1
-
-#include <sys/syscall.h>
-
-/* There is some commonality.  */
-#include <sysdeps/arm/sysdep.h>
-
-/* For Linux we can use the system call table in the header file
-	/usr/include/asm/unistd.h
-   of the kernel.  But these symbols do not follow the SYS_* syntax
-   so we have to redefine the `SYS_ify' macro here.  */
-#undef SYS_ify
-#define SWI_BASE  (0x900000)
-#define SYS_ify(syscall_name)	(__NR_##syscall_name)
-
-
-#ifdef __ASSEMBLER__
-
-/* Linux uses a negative return value to indicate syscall errors,
-   unlike most Unices, which use the condition codes' carry flag.
-
-   Since version 2.1 the return value of a system call might be
-   negative even if the call succeeded.  E.g., the `lseek' system call
-   might return a large offset.  Therefore we must not anymore test
-   for < 0, but test for a real error by making sure the value in R0
-   is a real error number.  Linus said he will make sure the no syscall
-   returns a value in -1 .. -4095 as a valid result so we can safely
-   test with -4095.  */
-
-#undef	PSEUDO
-#define	PSEUDO(name, syscall_name, args)				      \
-  .text;								      \
-  ENTRY (name);								      \
-    DO_CALL (syscall_name, args);					      \
-    cmn r0, $4096;
-
-#define PSEUDO_RET							      \
-    RETINSTR(cc, lr);							      \
-    b PLTJMP(SYSCALL_ERROR)
-#undef ret
-#define ret PSEUDO_RET
-
-#undef	PSEUDO_END
-#define	PSEUDO_END(name)						      \
-  SYSCALL_ERROR_HANDLER							      \
-  END (name)
-
-#undef	PSEUDO_NOERRNO
-#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
-  .text;								      \
-  ENTRY (name);								      \
-    DO_CALL (syscall_name, args);
-
-#define PSEUDO_RET_NOERRNO						      \
-    DO_RET (lr);
-
-#undef ret_NOERRNO
-#define ret_NOERRNO PSEUDO_RET_NOERRNO
-
-#undef	PSEUDO_END_NOERRNO
-#define	PSEUDO_END_NOERRNO(name)					      \
-  END (name)
-
-/* The function has to return the error code.  */
-#undef	PSEUDO_ERRVAL
-#define	PSEUDO_ERRVAL(name, syscall_name, args) \
-  .text;								      \
-  ENTRY (name)								      \
-    DO_CALL (syscall_name, args);					      \
-    rsb r0, r0, #0
-
-#undef	PSEUDO_END_ERRVAL
-#define	PSEUDO_END_ERRVAL(name) \
-  END (name)
-
-#define ret_ERRVAL PSEUDO_RET_NOERRNO
-
-#if NOT_IN_libc
-# define SYSCALL_ERROR __local_syscall_error
-# ifdef RTLD_PRIVATE_ERRNO
-#  define SYSCALL_ERROR_HANDLER					\
-__local_syscall_error:						\
-       ldr     r1, 1f;						\
-       rsb     r0, r0, #0;					\
-0:     str     r0, [pc, r1];					\
-       mvn     r0, #0;						\
-       DO_RET(lr);						\
-1:     .word C_SYMBOL_NAME(rtld_errno) - 0b - 8;
-# else
-#  define SYSCALL_ERROR_HANDLER					\
-__local_syscall_error:						\
-	str	lr, [sp, #-4]!;					\
-	str	r0, [sp, #-4]!;					\
-	bl	PLTJMP(C_SYMBOL_NAME(__errno_location)); 	\
-	ldr	r1, [sp], #4;					\
-	rsb	r1, r1, #0;					\
-	str	r1, [r0];					\
-	mvn	r0, #0;						\
-	ldr	pc, [sp], #4;
-# endif
-#else
-# define SYSCALL_ERROR_HANDLER	/* Nothing here; code in sysdep.S is used.  */
-# define SYSCALL_ERROR __syscall_error
-#endif
-
-/* Linux takes system call args in registers:
-	syscall number	in the SWI instruction
-	arg 1		r0
-	arg 2		r1
-	arg 3		r2
-	arg 4		r3
-	arg 5		r4	(this is different from the APCS convention)
-	arg 6		r5
-	arg 7		r6
-
-   The compiler is going to form a call by coming here, through PSEUDO, with
-   arguments
-	syscall number	in the DO_CALL macro
-	arg 1		r0
-	arg 2		r1
-	arg 3		r2
-	arg 4		r3
-	arg 5		[sp]
-	arg 6		[sp+4]
-	arg 7		[sp+8]
-
-   We need to shuffle values between R4..R6 and the stack so that the
-   caller's v1..v3 and stack frame are not corrupted, and the kernel
-   sees the right arguments.
-
-*/
-
-#undef	DO_CALL
-#if defined(__ARM_EABI__)
-#define DO_CALL(syscall_name, args)		\
-    DOARGS_##args				\
-    mov ip, r7;					\
-    ldr r7, =SYS_ify (syscall_name);		\
-    swi 0x0;					\
-    mov r7, ip;					\
-    UNDOARGS_##args
-#else
-#define DO_CALL(syscall_name, args)		\
-    DOARGS_##args				\
-    swi SYS_ify (syscall_name); 		\
-    UNDOARGS_##args
-#endif
-
-#define DOARGS_0 /* nothing */
-#define DOARGS_1 /* nothing */
-#define DOARGS_2 /* nothing */
-#define DOARGS_3 /* nothing */
-#define DOARGS_4 /* nothing */
-#define DOARGS_5 str r4, [sp, $-4]!; ldr r4, [sp, $4];
-#define DOARGS_6 mov ip, sp; stmfd sp!, {r4, r5}; ldmia ip, {r4, r5};
-#define DOARGS_7 mov ip, sp; stmfd sp!, {r4, r5, r6}; ldmia ip, {r4, r5, r6};
-
-#define UNDOARGS_0 /* nothing */
-#define UNDOARGS_1 /* nothing */
-#define UNDOARGS_2 /* nothing */
-#define UNDOARGS_3 /* nothing */
-#define UNDOARGS_4 /* nothing */
-#define UNDOARGS_5 ldr r4, [sp], $4;
-#define UNDOARGS_6 ldmfd sp!, {r4, r5};
-#define UNDOARGS_7 ldmfd sp!, {r4, r5, r6};
-
-#else /* not __ASSEMBLER__ */
-
-/* Define a macro which expands into the inline wrapper code for a system
-   call.  */
-#undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...)				\
-  ({ unsigned int _sys_result = INTERNAL_SYSCALL (name, , nr, args);	\
-     if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result, ), 0))	\
-       {								\
-	 __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, ));		\
-	 _sys_result = (unsigned int) -1;				\
-       }								\
-     (int) _sys_result; })
-
-#undef INTERNAL_SYSCALL_DECL
-#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
-
-#undef INTERNAL_SYSCALL_RAW
-#if defined(__thumb__)
-/* Hide the use of r7 from the compiler, this would be a lot
- * easier but for the fact that the syscalls can exceed 255.
- * For the moment the LOAD_ARG_7 is sacrificed.
- * We can't use push/pop inside the asm because that breaks
- * unwinding (ie. thread cancellation).
- */
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...)		\
-  ({ unsigned int _sys_result;                                  \
-    {                                                           \
-      int _sys_buf[2];						\
-      register int _a1 __asm__ ("a1");                          \
-      register int *_v3 __asm__ ("v3") = _sys_buf;		\
-      LOAD_ARGS_##nr (args)                                     \
-      *_v3 = (int) (name);					\
-      __asm__ __volatile__ ("str	r7, [v3, #4]\n"		\
-                    "\tldr      r7, [v3]\n"                     \
-                    "\tswi      0       @ syscall " #name "\n"  \
-                    "\tldr      r7, [v3, #4]"                   \
-                   : "=r" (_a1)                                 \
-                    : "r" (_v3) ASM_ARGS_##nr                   \
-                    : "memory");                                \
-      _sys_result = _a1;                                        \
-    }                                                           \
-    (int) _sys_result; })
-#elif defined(__ARM_EABI__)
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...)		\
-  ({unsigned int _sys_result;					\
-     {								\
-       register int _a1 __asm__ ("r0"), _nr __asm__ ("r7");	\
-       LOAD_ARGS_##nr (args)					\
-       _nr = name;						\
-       __asm__ __volatile__ ("swi	0x0 @ syscall " #name	\
-		     : "=r" (_a1)				\
-		     : "r" (_nr) ASM_ARGS_##nr			\
-		     : "memory");				\
-       _sys_result = _a1;					\
-     }								\
-     (int) _sys_result; })
-#else /* !defined(__ARM_EABI__) */
-#define INTERNAL_SYSCALL_RAW(name, err, nr, args...)		\
-  ({ unsigned int _sys_result;					\
-     {								\
-       register int _a1 __asm__ ("a1");				\
-       LOAD_ARGS_##nr (args)					\
-       __asm__ __volatile__ ("swi	%1 @ syscall " #name	\
-		     : "=r" (_a1)				\
-		     : "i" (name) ASM_ARGS_##nr			\
-		     : "memory");				\
-       _sys_result = _a1;					\
-     }								\
-     (int) _sys_result; })
-#endif
-
-#undef INTERNAL_SYSCALL
-#define INTERNAL_SYSCALL(name, err, nr, args...)		\
-	INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args)
-
-#undef INTERNAL_SYSCALL_ARM
-#define INTERNAL_SYSCALL_ARM(name, err, nr, args...)		\
-	INTERNAL_SYSCALL_RAW(__ARM_NR_##name, err, nr, args)
-
-#undef INTERNAL_SYSCALL_ERROR_P
-#define INTERNAL_SYSCALL_ERROR_P(val, err) \
-  ((unsigned int) (val) >= 0xfffff001u)
-
-#undef INTERNAL_SYSCALL_ERRNO
-#define INTERNAL_SYSCALL_ERRNO(val, err)	(-(val))
-
-#define LOAD_ARGS_0()
-#define ASM_ARGS_0
-#define LOAD_ARGS_1(a1)				\
-  _a1 = (int) (a1);				\
-  LOAD_ARGS_0 ()
-#define ASM_ARGS_1	ASM_ARGS_0, "r" (_a1)
-#define LOAD_ARGS_2(a1, a2)			\
-  register int _a2 __asm__ ("a2") = (int) (a2);	\
-  LOAD_ARGS_1 (a1)
-#define ASM_ARGS_2	ASM_ARGS_1, "r" (_a2)
-#define LOAD_ARGS_3(a1, a2, a3)			\
-  register int _a3 __asm__ ("a3") = (int) (a3);	\
-  LOAD_ARGS_2 (a1, a2)
-#define ASM_ARGS_3	ASM_ARGS_2, "r" (_a3)
-#define LOAD_ARGS_4(a1, a2, a3, a4)		\
-  register int _a4 __asm__ ("a4") = (int) (a4);	\
-  LOAD_ARGS_3 (a1, a2, a3)
-#define ASM_ARGS_4	ASM_ARGS_3, "r" (_a4)
-#define LOAD_ARGS_5(a1, a2, a3, a4, a5)		\
-  register int _v1 __asm__ ("v1") = (int) (a5);	\
-  LOAD_ARGS_4 (a1, a2, a3, a4)
-#define ASM_ARGS_5	ASM_ARGS_4, "r" (_v1)
-#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6)	\
-  register int _v2 __asm__ ("v2") = (int) (a6);	\
-  LOAD_ARGS_5 (a1, a2, a3, a4, a5)
-#define ASM_ARGS_6	ASM_ARGS_5, "r" (_v2)
-#define LOAD_ARGS_7(a1, a2, a3, a4, a5, a6, a7)	\
-  register int _v3 __asm__ ("v3") = (int) (a7);	\
-  LOAD_ARGS_6 (a1, a2, a3, a4, a5, a6)
-#define ASM_ARGS_7	ASM_ARGS_6, "r" (_v3)
-
-#if defined(__ARM_EABI__)
-#undef INTERNAL_SYSCALL_NCS
-#define INTERNAL_SYSCALL_NCS(number, err, nr, args...)		\
-	INTERNAL_SYSCALL_RAW(number, err, nr, args)
-#else
-/* We can't implement non-constant syscalls directly since the syscall
-   number is normally encoded in the instruction.  So use SYS_syscall.  */
-#undef INTERNAL_SYSCALL_NCS
-#define INTERNAL_SYSCALL_NCS(number, err, nr, args...)		\
-	INTERNAL_SYSCALL_NCS_##nr (number, err, args)
-
-#define INTERNAL_SYSCALL_NCS_0(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 1, number, args)
-#define INTERNAL_SYSCALL_NCS_1(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 2, number, args)
-#define INTERNAL_SYSCALL_NCS_2(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 3, number, args)
-#define INTERNAL_SYSCALL_NCS_3(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 4, number, args)
-#define INTERNAL_SYSCALL_NCS_4(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 5, number, args)
-#define INTERNAL_SYSCALL_NCS_5(number, err, args...)		\
-	INTERNAL_SYSCALL (syscall, err, 6, number, args)
-#endif
-
-#endif	/* __ASSEMBLER__ */
-
-#endif /* linux/arm/sysdep.h */