[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / powerpc64 / sysdep.h

/* Copyright (C) 1992,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2012
	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/>.  */

/* Alan Modra <amodra@bigpond.net.au> rewrote the INLINE_SYSCALL macro */

#ifndef _LINUX_POWERPC_SYSDEP_H
#define _LINUX_POWERPC_SYSDEP_H 1

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

/* Define __set_errno() for INLINE_SYSCALL macro below.  */
#ifndef __ASSEMBLER__
#include <errno.h>
#endif

/* 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

#ifdef __ASSEMBLER__

/* This seems to always be the case on PPC.  */
# define ALIGNARG(log2) 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

#endif /* __ASSEMBLER__ */

/* This version is for kernels that implement system calls that
   behave like function calls as far as register saving.
   It falls back to the syscall in the case that the vDSO doesn't
   exist or fails for ENOSYS */
#ifdef SHARED
# define INLINE_VSYSCALL(name, nr, args...) \
  ({									      \
    __label__ out;							      \
    __label__ iserr;							      \
    INTERNAL_SYSCALL_DECL (sc_err);					      \
    long int sc_ret;							      \
									      \
    if (__vdso_##name != NULL)						      \
      {									      \
	sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args);   \
	if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			      \
	  goto out;							      \
	if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS)		      \
	  goto iserr;							      \
      }									      \
									      \
    sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, ##args);		      \
    if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			      \
      {									      \
      iserr:								      \
        __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err));		      \
        sc_ret = -1L;							      \
      }									      \
  out:									      \
    sc_ret;								      \
  })
#else
# define INLINE_VSYSCALL(name, nr, args...) \
  INLINE_SYSCALL (name, nr, ##args)
#endif

#ifdef SHARED
# define INTERNAL_VSYSCALL(name, err, nr, args...) \
  ({									      \
    __label__ out;							      \
    long int v_ret;							      \
									      \
    if (__vdso_##name != NULL)						      \
      {									      \
	v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args);	      \
	if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err)			      \
	    || INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS)		      \
	  goto out;							      \
      }									      \
    v_ret = INTERNAL_SYSCALL (name, err, nr, ##args);			      \
  out:									      \
    v_ret;								      \
  })
#else
# define INTERNAL_VSYSCALL(name, err, nr, args...) \
  INTERNAL_SYSCALL (name, err, nr, ##args)
#endif

/* This version is for internal uses when there is no desire
   to set errno */
#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...)	      \
  ({									      \
    long int sc_ret = ENOSYS;						      \
									      \
    if (__vdso_##name != NULL)						      \
      sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##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 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. This returns just what the kernel
   gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set)
   the negation of the return value in the kernel gets reverted.  */

#define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, 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");				\
    LOADARGS_##nr (funcptr, args);					\
    __asm__ __volatile__						\
      ("mtctr %0\n\t"							\
       "bctrl\n\t"							\
       "mfcr  %0\n\t"							\
       "0:"								\
       : "=&r" (r0),							\
         "=&r" (r3), "=&r" (r4), "=&r" (r5),				\
         "=&r" (r6), "=&r" (r7), "=&r" (r8)				\
       : ASM_INPUT_##nr							\
       : "r9", "r10", "r11", "r12",					\
         "cr0", "ctr", "lr", "memory");					\
	  err = (long int) r0;						\
    r3;								\
  })

#undef INLINE_SYSCALL

/* This version is for kernels that implement system calls that
   behave like function calls as far as register saving.  */
#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. This returns just what the kernel
   gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set)
   the negation of the return value in the kernel gets reverted.  */

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

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

#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 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) > 8) \
	  __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) > 8) \
	  __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) > 8) \
	  __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) > 8) \
	  __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) > 8) \
	  __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) > 8) \
	  __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)


/* Pointer mangling support.  */
#if defined NOT_IN_libc && defined 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) \
	ld	tmpreg,POINTER_GUARD(r13); \
	xor	reg,tmpreg,reg
#  define PTR_MANGLE2(reg, tmpreg) \
	xor	reg,tmpreg,reg
#  define PTR_MANGLE3(destreg, reg, tmpreg) \
	ld	tmpreg,POINTER_GUARD(r13); \
	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/powerpc64/sysdep.h */
Commit	Line	Data
965a54a4	1	/* Copyright (C) 1992,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2012
a2274a08	2	Free Software Foundation, Inc.
cfc91acd RM	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
1e2f8718	18
cfc91acd RM	19	/* Alan Modra <amodra@bigpond.net.au> rewrote the INLINE_SYSCALL macro */
	20
	21	#ifndef _LINUX_POWERPC_SYSDEP_H
	22	#define _LINUX_POWERPC_SYSDEP_H 1
	23
	24	#include <sysdeps/unix/powerpc/sysdep.h>
00c2b3b9	25	#include <tls.h>
cfc91acd RM	26
	27	/* Define __set_errno() for INLINE_SYSCALL macro below. */
	28	#ifndef __ASSEMBLER__
	29	#include <errno.h>
	30	#endif
	31
5bfed16d UD	32	/* Some systen calls got renamed over time, but retained the same semantics.
	33	Handle them here so they can be catched by both C and assembler stubs in
	34	glibc. */
	35
	36	#ifdef __NR_pread64
	37	# ifdef __NR_pread
	38	# error "__NR_pread and __NR_pread64 both defined???"
	39	# endif
	40	# define __NR_pread __NR_pread64
	41	#endif
	42
	43	#ifdef __NR_pwrite64
	44	# ifdef __NR_pwrite
	45	# error "__NR_pwrite and __NR_pwrite64 both defined???"
	46	# endif
	47	# define __NR_pwrite __NR_pwrite64
	48	#endif
	49
cfc91acd RM	50	/* For Linux we can use the system call table in the header file
	51	/usr/include/asm/unistd.h
	52	of the kernel. But these symbols do not follow the SYS_* syntax
	53	so we have to redefine the `SYS_ify' macro here. */
	54	#undef SYS_ify
965a54a4	55	#define SYS_ify(syscall_name) __NR_##syscall_name
cfc91acd RM	56
	57	#ifdef __ASSEMBLER__
	58
	59	/* This seems to always be the case on PPC. */
8c2e201b	60	# define ALIGNARG(log2) log2
cfc91acd	61	/* For ELF we need the `.type' directive to make shared libs work right. */
8c2e201b UD	62	# define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
8c2e201b UD	63	# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
cfc91acd	64
8c2e201b UD	65	#endif /* __ASSEMBLER__ */
	66
	67	/* This version is for kernels that implement system calls that
	68	behave like function calls as far as register saving.
	69	It falls back to the syscall in the case that the vDSO doesn't
	70	exist or fails for ENOSYS */
	71	#ifdef SHARED
	72	# define INLINE_VSYSCALL(name, nr, args...) \
	73	({ \
	74	__label__ out; \
	75	__label__ iserr; \
	76	INTERNAL_SYSCALL_DECL (sc_err); \
	77	long int sc_ret; \
	78	\
	79	if (__vdso_##name != NULL) \
	80	{ \
	81	sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args); \
	82	if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
	83	goto out; \
	84	if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \
	85	goto iserr; \
	86	} \
	87	\
	88	sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, ##args); \
	89	if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
	90	{ \
	91	iserr: \
	92	__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
	93	sc_ret = -1L; \
	94	} \
	95	out: \
	96	sc_ret; \
	97	})
	98	#else
	99	# define INLINE_VSYSCALL(name, nr, args...) \
	100	INLINE_SYSCALL (name, nr, ##args)
	101	#endif
	102
	103	#ifdef SHARED
	104	# define INTERNAL_VSYSCALL(name, err, nr, args...) \
	105	({ \
	106	__label__ out; \
	107	long int v_ret; \
	108	\
	109	if (__vdso_##name != NULL) \
	110	{ \
	111	v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
	112	if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \
	113	\|\| INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \
	114	goto out; \
	115	} \
	116	v_ret = INTERNAL_SYSCALL (name, err, nr, ##args); \
	117	out: \
	118	v_ret; \
	119	})
	120	#else
	121	# define INTERNAL_VSYSCALL(name, err, nr, args...) \
	122	INTERNAL_SYSCALL (name, err, nr, ##args)
	123	#endif
	124
	125	/* This version is for internal uses when there is no desire
	126	to set errno */
	127	#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
	128	({ \
129	long int sc_ret = ENOSYS; \
130	\
131	if (__vdso_##name != NULL) \
132	sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
133	else \
134	err = 1 << 28; \
135	sc_ret; \
136	})
137
138	/* List of system calls which are supported as vsyscalls. */
139	#define HAVE_CLOCK_GETRES_VSYSCALL 1
140	#define HAVE_CLOCK_GETTIME_VSYSCALL 1
141
142	/* Define a macro which expands inline into the wrapper code for a system
143	call. This use is for internal calls that do not need to handle errors
144	normally. It will never touch errno. This returns just what the kernel
145	gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set)
146	the negation of the return value in the kernel gets reverted. */
147
148	#define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, args...) \
149	({ \
150	register void *r0 __asm__ ("r0"); \
151	register long int r3 __asm__ ("r3"); \
152	register long int r4 __asm__ ("r4"); \
153	register long int r5 __asm__ ("r5"); \
154	register long int r6 __asm__ ("r6"); \
155	register long int r7 __asm__ ("r7"); \
156	register long int r8 __asm__ ("r8"); \
157	LOADARGS_##nr (funcptr, args); \
158	__asm__ __volatile__ \
159	("mtctr %0\n\t" \
160	"bctrl\n\t" \
161	"mfcr %0\n\t" \
162	"0:" \
163	: "=&r" (r0), \
164	"=&r" (r3), "=&r" (r4), "=&r" (r5), \
165	"=&r" (r6), "=&r" (r7), "=&r" (r8) \
166	: ASM_INPUT_##nr \
167	: "r9", "r10", "r11", "r12", \
168	"cr0", "ctr", "lr", "memory"); \
169	err = (long int) r0; \
d55fd7a5	170	r3; \
8c2e201b	171	})
cfc91acd RM	172
cfc91acd RM	173	#undef INLINE_SYSCALL
cfc91acd	174
cfc91acd RM	175	/* This version is for kernels that implement system calls that
cfc91acd RM	176	behave like function calls as far as register saving. */
1e2f8718 UD	177	#define INLINE_SYSCALL(name, nr, args...) \
1e2f8718 UD	178	({ \
574b892e	179	INTERNAL_SYSCALL_DECL (sc_err); \
c67a469f	180	long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args); \
574b892e UD	181	if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
	182	{ \
	183	__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
	184	sc_ret = -1L; \
	185	} \
	186	sc_ret; \
cfc91acd RM	187	})
cfc91acd RM	188
aff4519d UD	189	/* Define a macro which expands inline into the wrapper code for a system
	190	call. This use is for internal calls that do not need to handle errors
	191	normally. It will never touch errno. This returns just what the kernel
	192	gave back in the non-error (CR0.SO cleared) case, otherwise (CR0.SO set)
	193	the negation of the return value in the kernel gets reverted. */
	194
1e2f8718	195	#undef INTERNAL_SYSCALL
2edb61e3	196	#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
aff4519d	197	({ \
c67a469f UD	198	register long int r0 __asm__ ("r0"); \
	199	register long int r3 __asm__ ("r3"); \
	200	register long int r4 __asm__ ("r4"); \
	201	register long int r5 __asm__ ("r5"); \
	202	register long int r6 __asm__ ("r6"); \
	203	register long int r7 __asm__ ("r7"); \
	204	register long int r8 __asm__ ("r8"); \
8c2e201b	205	LOADARGS_##nr (name, ##args); \
aff4519d UD	206	__asm__ __volatile__ \
aff4519d UD	207	("sc\n\t" \
574b892e	208	"mfcr %0\n\t" \
aff4519d UD	209	"0:" \
aff4519d UD	210	: "=&r" (r0), \
1e2f8718 UD	211	"=&r" (r3), "=&r" (r4), "=&r" (r5), \
1e2f8718 UD	212	"=&r" (r6), "=&r" (r7), "=&r" (r8) \
aff4519d	213	: ASM_INPUT_##nr \
1e2f8718	214	: "r9", "r10", "r11", "r12", \
aff4519d	215	"cr0", "ctr", "memory"); \
574b892e	216	err = r0; \
d55fd7a5	217	r3; \
aff4519d	218	})
2edb61e3	219	#define INTERNAL_SYSCALL(name, err, nr, args...) \
8c2e201b	220	INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, args)
574b892e	221
1e2f8718	222	#undef INTERNAL_SYSCALL_DECL
c67a469f	223	#define INTERNAL_SYSCALL_DECL(err) long int err
1e2f8718 UD	224
	225	#undef INTERNAL_SYSCALL_ERROR_P
	226	#define INTERNAL_SYSCALL_ERROR_P(val, err) \
5949daa0	227	((void) (val), __builtin_expect ((err) & (1 << 28), 0))
574b892e	228
1e2f8718 UD	229	#undef INTERNAL_SYSCALL_ERRNO
1e2f8718 UD	230	#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
aff4519d UD	231
aff4519d UD	232	#define LOADARGS_0(name, dummy) \
2edb61e3	233	r0 = name
c67a469f UD	234	#define LOADARGS_1(name, __arg1) \
c67a469f UD	235	long int arg1 = (long int) (__arg1); \
aff4519d	236	LOADARGS_0(name, 0); \
2edb61e3	237	extern void __illegally_sized_syscall_arg1 (void); \
c67a469f	238	if (__builtin_classify_type (__arg1) != 5 && sizeof (__arg1) > 8) \
2edb61e3	239	__illegally_sized_syscall_arg1 (); \
c67a469f UD	240	r3 = arg1
	241	#define LOADARGS_2(name, __arg1, __arg2) \
	242	long int arg2 = (long int) (__arg2); \
	243	LOADARGS_1(name, __arg1); \
2edb61e3	244	extern void __illegally_sized_syscall_arg2 (void); \
c67a469f	245	if (__builtin_classify_type (__arg2) != 5 && sizeof (__arg2) > 8) \
2edb61e3	246	__illegally_sized_syscall_arg2 (); \
c67a469f UD	247	r4 = arg2
	248	#define LOADARGS_3(name, __arg1, __arg2, __arg3) \
	249	long int arg3 = (long int) (__arg3); \
	250	LOADARGS_2(name, __arg1, __arg2); \
2edb61e3	251	extern void __illegally_sized_syscall_arg3 (void); \
c67a469f	252	if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 8) \
2edb61e3	253	__illegally_sized_syscall_arg3 (); \
c67a469f UD	254	r5 = arg3
	255	#define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
	256	long int arg4 = (long int) (__arg4); \
	257	LOADARGS_3(name, __arg1, __arg2, __arg3); \
2edb61e3	258	extern void __illegally_sized_syscall_arg4 (void); \
c67a469f	259	if (__builtin_classify_type (__arg4) != 5 && sizeof (__arg4) > 8) \
2edb61e3	260	__illegally_sized_syscall_arg4 (); \
c67a469f UD	261	r6 = arg4
	262	#define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
	263	long int arg5 = (long int) (__arg5); \
	264	LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
2edb61e3	265	extern void __illegally_sized_syscall_arg5 (void); \
c67a469f	266	if (__builtin_classify_type (__arg5) != 5 && sizeof (__arg5) > 8) \
2edb61e3	267	__illegally_sized_syscall_arg5 (); \
c67a469f UD	268	r7 = arg5
	269	#define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
	270	long int arg6 = (long int) (__arg6); \
	271	LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
2edb61e3	272	extern void __illegally_sized_syscall_arg6 (void); \
c67a469f	273	if (__builtin_classify_type (__arg6) != 5 && sizeof (__arg6) > 8) \
2edb61e3	274	__illegally_sized_syscall_arg6 (); \
c67a469f	275	r8 = arg6
cfc91acd RM	276
	277	#define ASM_INPUT_0 "0" (r0)
	278	#define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
	279	#define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
	280	#define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
	281	#define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
	282	#define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
	283	#define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)
	284
00c2b3b9 UD	285
	286	/* Pointer mangling support. */
	287	#if defined NOT_IN_libc && defined IS_IN_rtld
	288	/* We cannot use the thread descriptor because in ld.so we use setjmp
	289	earlier than the descriptor is initialized. */
	290	#else
	291	# ifdef __ASSEMBLER__
	292	# define PTR_MANGLE(reg, tmpreg) \
	293	ld tmpreg,POINTER_GUARD(r13); \
	294	xor reg,tmpreg,reg
5ad77144 UD	295	# define PTR_MANGLE2(reg, tmpreg) \
5ad77144 UD	296	xor reg,tmpreg,reg
4a132246 UD	297	# define PTR_MANGLE3(destreg, reg, tmpreg) \
	298	ld tmpreg,POINTER_GUARD(r13); \
	299	xor destreg,tmpreg,reg
00c2b3b9	300	# define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
5ad77144	301	# define PTR_DEMANGLE2(reg, tmpreg) PTR_MANGLE2 (reg, tmpreg)
4a132246	302	# define PTR_DEMANGLE3(destreg, reg, tmpreg) PTR_MANGLE3 (destreg, reg, tmpreg)
00c2b3b9 UD	303	# else
00c2b3b9 UD	304	# define PTR_MANGLE(var) \
04a8b301	305	(var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
00c2b3b9 UD	306	# define PTR_DEMANGLE(var) PTR_MANGLE (var)
	307	# endif
	308	#endif
	309
cfc91acd	310	#endif /* linux/powerpc/powerpc64/sysdep.h */