[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / powerpc32 / sysdep.h

/* Copyright (C) 1992-2015 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, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _LINUX_POWERPC_SYSDEP_H
#define _LINUX_POWERPC_SYSDEP_H 1

#include <sysdeps/unix/powerpc/sysdep.h>
#include <tls.h>

/* Some systen calls got renamed over time, but retained the same semantics.
   Handle them here so they can be catched by both C and assembler stubs in
   glibc.  */

#ifdef __NR_pread64
# ifdef __NR_pread
#  error "__NR_pread and __NR_pread64 both defined???"
# endif
# define __NR_pread __NR_pread64
#endif

#ifdef __NR_pwrite64
# ifdef __NR_pwrite
#  error "__NR_pwrite and __NR_pwrite64 both defined???"
# endif
# define __NR_pwrite __NR_pwrite64
#endif

/* 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 SYS_ify(syscall_name)	__NR_##syscall_name

#ifndef __ASSEMBLER__

# include <errno.h>

/* Define a macro which expands inline into the wrapper code for a VDSO
   call. This use is for internal calls that do not need to handle errors
   normally. It will never touch errno.
   On powerpc a system call basically clobbers the same registers like a
   function call, with the exception of LR (which is needed for the
   "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
   an error return status).  */
# define INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, type, args...)	      \
  ({									      \
    register void *r0  __asm__ ("r0");					      \
    register long int r3  __asm__ ("r3");				      \
    register long int r4  __asm__ ("r4");				      \
    register long int r5  __asm__ ("r5");				      \
    register long int r6  __asm__ ("r6");				      \
    register long int r7  __asm__ ("r7");				      \
    register long int r8  __asm__ ("r8");				      \
    register long int r9  __asm__ ("r9");				      \
    register long int r10 __asm__ ("r10");				      \
    register long int r11 __asm__ ("r11");				      \
    register long int r12 __asm__ ("r12");				      \
    register type rval  __asm__ ("r3");					      \
    LOADARGS_##nr (funcptr, args);					      \
    __asm__ __volatile__						      \
      ("mtctr %0\n\t"							      \
       "bctrl\n\t"							      \
       "mfcr %0"							      \
       : "+r" (r0), "+r" (r3), "+r" (r4), "+r" (r5),  "+r" (r6),  "+r" (r7),  \
	 "+r" (r8), "+r" (r9), "+r" (r10), "+r" (r11), "+r" (r12)	      \
       : : "cr0", "ctr", "lr", "memory");				      \
    err = (long int) r0;						      \
    __asm__ __volatile__ ("" : "=r" (rval) : "r" (r3), "r" (r4));	      \
    rval;								      \
  })

#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \
  INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, long int, args)

# undef INLINE_SYSCALL
# define INLINE_SYSCALL(name, nr, args...)				\
  ({									\
    INTERNAL_SYSCALL_DECL (sc_err);					\
    long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args);	\
    if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			\
      {									\
	__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err));		\
	sc_ret = -1L;							\
      }									\
    sc_ret;								\
  })

/* Define a macro which expands inline into the wrapper code for a system
   call. This use is for internal calls that do not need to handle errors
   normally. It will never touch errno.
   On powerpc a system call basically clobbers the same registers like a
   function call, with the exception of LR (which is needed for the
   "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
   an error return status).  */

# undef INTERNAL_SYSCALL_DECL
# define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused))

# undef INTERNAL_SYSCALL
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...)			\
  ({									\
    register long int r0  __asm__ ("r0");				\
    register long int r3  __asm__ ("r3");				\
    register long int r4  __asm__ ("r4");				\
    register long int r5  __asm__ ("r5");				\
    register long int r6  __asm__ ("r6");				\
    register long int r7  __asm__ ("r7");				\
    register long int r8  __asm__ ("r8");				\
    register long int r9  __asm__ ("r9");				\
    register long int r10 __asm__ ("r10");				\
    register long int r11 __asm__ ("r11");				\
    register long int r12 __asm__ ("r12");				\
    LOADARGS_##nr(name, args);						\
    ABORT_TRANSACTION;							\
    __asm__ __volatile__						\
      ("sc   \n\t"							\
       "mfcr %0"							\
       : "=&r" (r0),							\
	 "=&r" (r3), "=&r" (r4), "=&r" (r5),  "=&r" (r6),  "=&r" (r7),	\
	 "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12)	\
       : ASM_INPUT_##nr							\
       : "cr0", "ctr", "memory");					\
    err = r0;								\
    (int) r3;								\
  })
# define INTERNAL_SYSCALL(name, err, nr, args...) \
  INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)

# undef INTERNAL_SYSCALL_ERROR_P
# define INTERNAL_SYSCALL_ERROR_P(val, err) \
  ((void) (val), __builtin_expect ((err) & (1 << 28), 0))

# undef INTERNAL_SYSCALL_ERRNO
# define INTERNAL_SYSCALL_ERRNO(val, err)     (val)

# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...)  \
  ({									      \
    type sc_ret = ENOSYS;						      \
									      \
    __typeof (__vdso_##name) vdsop = __vdso_##name;			      \
    PTR_DEMANGLE (vdsop);						      \
    if (vdsop != NULL)							      \
      sc_ret = 								      \
        INTERNAL_VSYSCALL_CALL_TYPE (vdsop, err, nr, type, ##args);	      \
    else								      \
      err = 1 << 28;							      \
    sc_ret;								      \
  })

/* List of system calls which are supported as vsyscalls.  */
# define HAVE_CLOCK_GETRES_VSYSCALL	1
# define HAVE_CLOCK_GETTIME_VSYSCALL	1
# define HAVE_GETCPU_VSYSCALL		1


# define LOADARGS_0(name, dummy)					      \
	r0 = name
# define LOADARGS_1(name, __arg1) \
	long int arg1 = (long int) (__arg1);	\
  LOADARGS_0(name, 0);					   \
	extern void __illegally_sized_syscall_arg1 (void); \
	if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
	  __illegally_sized_syscall_arg1 (); \
	r3 = arg1
# define LOADARGS_2(name, __arg1, __arg2) \
	long int arg2 = (long int) (__arg2); \
	LOADARGS_1(name, __arg1); \
	extern void __illegally_sized_syscall_arg2 (void); \
	if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
	  __illegally_sized_syscall_arg2 (); \
	r4 = arg2
# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
	long int arg3 = (long int) (__arg3); \
	LOADARGS_2(name, __arg1, __arg2); \
	extern void __illegally_sized_syscall_arg3 (void); \
	if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
	  __illegally_sized_syscall_arg3 (); \
	r5 = arg3
# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
	long int arg4 = (long int) (__arg4); \
	LOADARGS_3(name, __arg1, __arg2, __arg3); \
	extern void __illegally_sized_syscall_arg4 (void); \
	if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
	  __illegally_sized_syscall_arg4 (); \
	r6 = arg4
# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
	long int arg5 = (long int) (__arg5); \
	LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
	extern void __illegally_sized_syscall_arg5 (void); \
	if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
	  __illegally_sized_syscall_arg5 (); \
	r7 = arg5
# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
	long int arg6 = (long int) (__arg6); \
	LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
	extern void __illegally_sized_syscall_arg6 (void); \
	if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
	  __illegally_sized_syscall_arg6 (); \
	r8 = arg6

# define ASM_INPUT_0 "0" (r0)
# define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
# define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
# define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
# define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
# define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
# define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)

#endif /* __ASSEMBLER__ */


/* Pointer mangling support.  */
#if IS_IN (rtld)
/* We cannot use the thread descriptor because in ld.so we use setjmp
   earlier than the descriptor is initialized.  */
#else
# ifdef __ASSEMBLER__
#  define PTR_MANGLE(reg, tmpreg) \
	lwz	tmpreg,POINTER_GUARD(r2); \
	xor	reg,tmpreg,reg
#  define PTR_MANGLE2(reg, tmpreg) \
	xor	reg,tmpreg,reg
#  define PTR_MANGLE3(destreg, reg, tmpreg) \
	lwz	tmpreg,POINTER_GUARD(r2); \
	xor	destreg,tmpreg,reg
#  define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
#  define PTR_DEMANGLE2(reg, tmpreg) PTR_MANGLE2 (reg, tmpreg)
#  define PTR_DEMANGLE3(destreg, reg, tmpreg) PTR_MANGLE3 (destreg, reg, tmpreg)
# else
#  define PTR_MANGLE(var) \
  (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
#  define PTR_DEMANGLE(var)	PTR_MANGLE (var)
# endif
#endif

#endif /* linux/powerpc/powerpc32/sysdep.h */
Commit	Line	Data
b168057a	1	/* Copyright (C) 1992-2015 Free Software Foundation, Inc.
4cca6b86 UD	2	This file is part of the GNU C Library.
	3
	4	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	5	modify it under the terms of the GNU Lesser General Public
	6	License as published by the Free Software Foundation; either
	7	version 2.1 of the License, or (at your option) any later version.
4cca6b86 UD	8
	9	The GNU C Library is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	12	Lesser General Public License for more details.
4cca6b86	13
41bdb6e2	14	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	15	License along with the GNU C Library; if not, see
59ba27a6 PE	16	<http://www.gnu.org/licenses/>. */
4cca6b86	17
924102e7 UD	18	#ifndef _LINUX_POWERPC_SYSDEP_H
	19	#define _LINUX_POWERPC_SYSDEP_H 1
	20
be9cd93a	21	#include <sysdeps/unix/powerpc/sysdep.h>
00c2b3b9	22	#include <tls.h>
4cca6b86	23
5bfed16d UD	24	/* Some systen calls got renamed over time, but retained the same semantics.
	25	Handle them here so they can be catched by both C and assembler stubs in
	26	glibc. */
	27
	28	#ifdef __NR_pread64
	29	# ifdef __NR_pread
	30	# error "__NR_pread and __NR_pread64 both defined???"
	31	# endif
	32	# define __NR_pread __NR_pread64
	33	#endif
	34
	35	#ifdef __NR_pwrite64
	36	# ifdef __NR_pwrite
	37	# error "__NR_pwrite and __NR_pwrite64 both defined???"
	38	# endif
	39	# define __NR_pwrite __NR_pwrite64
	40	#endif
	41
4cca6b86 UD	42	/* For Linux we can use the system call table in the header file
	43	/usr/include/asm/unistd.h
	44	of the kernel. But these symbols do not follow the SYS_* syntax
	45	so we have to redefine the `SYS_ify' macro here. */
	46	#undef SYS_ify
965a54a4	47	#define SYS_ify(syscall_name) __NR_##syscall_name
4cca6b86	48
735d67f2 RM	49	#ifndef __ASSEMBLER__
	50
	51	# include <errno.h>
	52
8c2e201b UD	53	/* Define a macro which expands inline into the wrapper code for a VDSO
	54	call. This use is for internal calls that do not need to handle errors
	55	normally. It will never touch errno.
	56	On powerpc a system call basically clobbers the same registers like a
	57	function call, with the exception of LR (which is needed for the
	58	"sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
	59	an error return status). */
f534255e	60	# define INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, type, args...) \
8c2e201b UD	61	({ \
	62	register void *r0 __asm__ ("r0"); \
	63	register long int r3 __asm__ ("r3"); \
	64	register long int r4 __asm__ ("r4"); \
	65	register long int r5 __asm__ ("r5"); \
	66	register long int r6 __asm__ ("r6"); \
	67	register long int r7 __asm__ ("r7"); \
	68	register long int r8 __asm__ ("r8"); \
	69	register long int r9 __asm__ ("r9"); \
	70	register long int r10 __asm__ ("r10"); \
	71	register long int r11 __asm__ ("r11"); \
	72	register long int r12 __asm__ ("r12"); \
471a1672	73	register type rval __asm__ ("r3"); \
8c2e201b UD	74	LOADARGS_##nr (funcptr, args); \
	75	__asm__ __volatile__ \
	76	("mtctr %0\n\t" \
	77	"bctrl\n\t" \
	78	"mfcr %0" \
471a1672 AB	79	: "+r" (r0), "+r" (r3), "+r" (r4), "+r" (r5), "+r" (r6), "+r" (r7), \
	80	"+r" (r8), "+r" (r9), "+r" (r10), "+r" (r11), "+r" (r12) \
	81	: : "cr0", "ctr", "lr", "memory"); \
8c2e201b	82	err = (long int) r0; \
471a1672 AB	83	__asm__ __volatile__ ("" : "=r" (rval) : "r" (r3), "r" (r4)); \
471a1672 AB	84	rval; \
8c2e201b UD	85	})
8c2e201b UD	86
f534255e AZ	87	#define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...) \
	88	INTERNAL_VSYSCALL_CALL_TYPE(funcptr, err, nr, long int, args)
	89
735d67f2	90	# undef INLINE_SYSCALL
704bb2fd RM	91	# define INLINE_SYSCALL(name, nr, args...) \
704bb2fd RM	92	({ \
b398ae3c	93	INTERNAL_SYSCALL_DECL (sc_err); \
c67a469f	94	long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args); \
b398ae3c	95	if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
704bb2fd	96	{ \
b398ae3c UD	97	__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
b398ae3c UD	98	sc_ret = -1L; \
704bb2fd	99	} \
b398ae3c	100	sc_ret; \
735d67f2 RM	101	})
735d67f2 RM	102
73e9ae88 UD	103	/* Define a macro which expands inline into the wrapper code for a system
73e9ae88 UD	104	call. This use is for internal calls that do not need to handle errors
b398ae3c UD	105	normally. It will never touch errno.
	106	On powerpc a system call basically clobbers the same registers like a
	107	function call, with the exception of LR (which is needed for the
	108	"sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
	109	an error return status). */
73e9ae88	110
6aca81bb	111	# undef INTERNAL_SYSCALL_DECL
20f0018d	112	# define INTERNAL_SYSCALL_DECL(err) long int err __attribute__ ((unused))
6aca81bb	113
52f3d213	114	# undef INTERNAL_SYSCALL
2edb61e3	115	# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
73e9ae88	116	({ \
c67a469f UD	117	register long int r0 __asm__ ("r0"); \
	118	register long int r3 __asm__ ("r3"); \
	119	register long int r4 __asm__ ("r4"); \
	120	register long int r5 __asm__ ("r5"); \
	121	register long int r6 __asm__ ("r6"); \
	122	register long int r7 __asm__ ("r7"); \
	123	register long int r8 __asm__ ("r8"); \
	124	register long int r9 __asm__ ("r9"); \
	125	register long int r10 __asm__ ("r10"); \
	126	register long int r11 __asm__ ("r11"); \
	127	register long int r12 __asm__ ("r12"); \
471a1672	128	LOADARGS_##nr(name, args); \
56cf2763	129	ABORT_TRANSACTION; \
73e9ae88	130	__asm__ __volatile__ \
b398ae3c UD	131	("sc \n\t" \
b398ae3c UD	132	"mfcr %0" \
73e9ae88 UD	133	: "=&r" (r0), \
	134	"=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \
	135	"=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \
	136	: ASM_INPUT_##nr \
	137	: "cr0", "ctr", "memory"); \
b398ae3c	138	err = r0; \
73e9ae88 UD	139	(int) r3; \
73e9ae88 UD	140	})
2edb61e3 UD	141	# define INTERNAL_SYSCALL(name, err, nr, args...) \
2edb61e3 UD	142	INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
6aca81bb	143
52f3d213	144	# undef INTERNAL_SYSCALL_ERROR_P
6aca81bb	145	# define INTERNAL_SYSCALL_ERROR_P(val, err) \
a2274a08	146	((void) (val), __builtin_expect ((err) & (1 << 28), 0))
6aca81bb	147
52f3d213	148	# undef INTERNAL_SYSCALL_ERRNO
b398ae3c	149	# define INTERNAL_SYSCALL_ERRNO(val, err) (val)
73e9ae88	150
f534255e AZ	151	# define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, type, nr, args...) \
	152	({ \
	153	type sc_ret = ENOSYS; \
	154	\
	155	__typeof (__vdso_##name) vdsop = __vdso_##name; \
	156	PTR_DEMANGLE (vdsop); \
	157	if (vdsop != NULL) \
	158	sc_ret = \
	159	INTERNAL_VSYSCALL_CALL_TYPE (vdsop, err, nr, type, ##args); \
	160	else \
	161	err = 1 << 28; \
	162	sc_ret; \
	163	})
	164
	165	/* List of system calls which are supported as vsyscalls. */
	166	# define HAVE_CLOCK_GETRES_VSYSCALL 1
	167	# define HAVE_CLOCK_GETTIME_VSYSCALL 1
dd26c444	168	# define HAVE_GETCPU_VSYSCALL 1
f534255e AZ	169
f534255e AZ	170
8c2e201b	171	# define LOADARGS_0(name, dummy) \
2edb61e3	172	r0 = name
c67a469f UD	173	# define LOADARGS_1(name, __arg1) \
c67a469f UD	174	long int arg1 = (long int) (__arg1); \
8c2e201b	175	LOADARGS_0(name, 0); \
2edb61e3	176	extern void __illegally_sized_syscall_arg1 (void); \
c67a469f	177	if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 4) \
2edb61e3	178	__illegally_sized_syscall_arg1 (); \
c67a469f UD	179	r3 = arg1
	180	# define LOADARGS_2(name, __arg1, __arg2) \
	181	long int arg2 = (long int) (__arg2); \
	182	LOADARGS_1(name, __arg1); \
2edb61e3	183	extern void __illegally_sized_syscall_arg2 (void); \
c67a469f	184	if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 4) \
2edb61e3	185	__illegally_sized_syscall_arg2 (); \
c67a469f UD	186	r4 = arg2
	187	# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
	188	long int arg3 = (long int) (__arg3); \
	189	LOADARGS_2(name, __arg1, __arg2); \
2edb61e3	190	extern void __illegally_sized_syscall_arg3 (void); \
c67a469f	191	if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 4) \
2edb61e3	192	__illegally_sized_syscall_arg3 (); \
c67a469f UD	193	r5 = arg3
	194	# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
	195	long int arg4 = (long int) (__arg4); \
	196	LOADARGS_3(name, __arg1, __arg2, __arg3); \
2edb61e3	197	extern void __illegally_sized_syscall_arg4 (void); \
c67a469f	198	if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 4) \
2edb61e3	199	__illegally_sized_syscall_arg4 (); \
c67a469f UD	200	r6 = arg4
	201	# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
	202	long int arg5 = (long int) (__arg5); \
	203	LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
2edb61e3	204	extern void __illegally_sized_syscall_arg5 (void); \
c67a469f	205	if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 4) \
2edb61e3	206	__illegally_sized_syscall_arg5 (); \
c67a469f UD	207	r7 = arg5
	208	# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
	209	long int arg6 = (long int) (__arg6); \
	210	LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
2edb61e3	211	extern void __illegally_sized_syscall_arg6 (void); \
c67a469f	212	if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 4) \
2edb61e3	213	__illegally_sized_syscall_arg6 (); \
c67a469f	214	r8 = arg6
735d67f2	215
704bb2fd RM	216	# define ASM_INPUT_0 "0" (r0)
	217	# define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
	218	# define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
	219	# define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
	220	# define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
	221	# define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
	222	# define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)
735d67f2 RM	223
	224	#endif /* __ASSEMBLER__ */
	225
	226
00c2b3b9	227	/* Pointer mangling support. */
a3848485	228	#if IS_IN (rtld)
00c2b3b9 UD	229	/* We cannot use the thread descriptor because in ld.so we use setjmp
	230	earlier than the descriptor is initialized. */
	231	#else
	232	# ifdef __ASSEMBLER__
	233	# define PTR_MANGLE(reg, tmpreg) \
	234	lwz tmpreg,POINTER_GUARD(r2); \
	235	xor reg,tmpreg,reg
5ad77144	236	# define PTR_MANGLE2(reg, tmpreg) \
4e54d7e4	237	xor reg,tmpreg,reg
4a132246 UD	238	# define PTR_MANGLE3(destreg, reg, tmpreg) \
	239	lwz tmpreg,POINTER_GUARD(r2); \
	240	xor destreg,tmpreg,reg
5ad77144 UD	241	# define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
5ad77144 UD	242	# define PTR_DEMANGLE2(reg, tmpreg) PTR_MANGLE2 (reg, tmpreg)
4a132246	243	# define PTR_DEMANGLE3(destreg, reg, tmpreg) PTR_MANGLE3 (destreg, reg, tmpreg)
00c2b3b9 UD	244	# else
00c2b3b9 UD	245	# define PTR_MANGLE(var) \
db169ed5	246	(var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
00c2b3b9 UD	247	# define PTR_DEMANGLE(var) PTR_MANGLE (var)
	248	# endif
	249	#endif
	250
b398ae3c	251	#endif /* linux/powerpc/powerpc32/sysdep.h */