diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/sysdep.h')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/sysdep.h | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/sysdep.h b/libc/sysdeps/linux/powerpc/bits/sysdep.h deleted file mode 100644 index 478ebdd7a..000000000 --- a/libc/sysdeps/linux/powerpc/bits/sysdep.h +++ /dev/null @@ -1,301 +0,0 @@ -/* Copyright (C) 1992,1997-2003,2004,2005,2006 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. */ - -#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 -#ifdef __STDC__ -# define SYS_ify(syscall_name) __NR_##syscall_name -#else -# define SYS_ify(syscall_name) __NR_/**/syscall_name -#endif - -#ifndef __ASSEMBLER__ - -# include <errno.h> - -# 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 - -# 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 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_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"); \ - 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 (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) \ - : ASM_INPUT_##nr \ - : "cr0", "ctr", "lr", "memory"); \ - err = (long int) r0; \ - (int) r3; \ - }) - -# 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 - -# 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); \ - __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; \ - }) -# undef INTERNAL_SYSCALL -# 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 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 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) \ - 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 */ |