diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/atomic.h | 252 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/mathinline.h | 76 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/setjmp.h | 7 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/stat.h | 108 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/wordsize.h | 7 |
5 files changed, 3 insertions, 447 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/atomic.h b/libc/sysdeps/linux/powerpc/bits/atomic.h index a401206d5..4294fb206 100644 --- a/libc/sysdeps/linux/powerpc/bits/atomic.h +++ b/libc/sysdeps/linux/powerpc/bits/atomic.h @@ -1,247 +1,3 @@ -/* Atomic operations. PowerPC Common version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. - - 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/>. */ - -#include <bits/wordsize.h> - -#if __WORDSIZE == 64 -/* Atomic operations. PowerPC64 version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. - - 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/>. */ - -/* The 32-bit exchange_bool is different on powerpc64 because the subf - does signed 64-bit arthmatic while the lwarx is 32-bit unsigned - (a load word and zero (high 32) form) load. - In powerpc64 register values are 64-bit by default, including oldval. - The value in old val unknown sign extension, lwarx loads the 32-bit - value as unsigned. So we explicitly clear the high 32 bits in oldval. */ -# define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \ -({ \ - unsigned int __tmp, __tmp2; \ - __asm__ __volatile__ (" clrldi %1,%1,32\n" \ - "1: lwarx %0,0,%2\n" \ - " subf. %0,%1,%0\n" \ - " bne 2f\n" \ - " stwcx. %4,0,%2\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&r" (__tmp), "=r" (__tmp2) \ - : "b" (mem), "1" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp != 0; \ -}) - -# define __arch_compare_and_exchange_bool_32_rel(mem, newval, oldval) \ -({ \ - unsigned int __tmp, __tmp2; \ - __asm__ __volatile__ (__ARCH_REL_INSTR "\n" \ - " clrldi %1,%1,32\n" \ - "1: lwarx %0,0,%2\n" \ - " subf. %0,%1,%0\n" \ - " bne 2f\n" \ - " stwcx. %4,0,%2\n" \ - " bne- 1b\n" \ - "2: " \ - : "=&r" (__tmp), "=r" (__tmp2) \ - : "b" (mem), "1" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp != 0; \ -}) - -/* - * Only powerpc64 processors support Load doubleword and reserve index (ldarx) - * and Store doubleword conditional indexed (stdcx) instructions. So here - * we define the 64-bit forms. - */ -# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \ -({ \ - unsigned long __tmp; \ - __asm__ __volatile__ ( \ - "1: ldarx %0,0,%1\n" \ - " subf. %0,%2,%0\n" \ - " bne 2f\n" \ - " stdcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&r" (__tmp) \ - : "b" (mem), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp != 0; \ -}) - -# define __arch_compare_and_exchange_bool_64_rel(mem, newval, oldval) \ -({ \ - unsigned long __tmp; \ - __asm__ __volatile__ (__ARCH_REL_INSTR "\n" \ - "1: ldarx %0,0,%1\n" \ - " subf. %0,%2,%0\n" \ - " bne 2f\n" \ - " stdcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " \ - : "=&r" (__tmp) \ - : "b" (mem), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp != 0; \ -}) - -#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __tmp; \ - __typeof (mem) __memp = (mem); \ - __asm__ __volatile__ ( \ - "1: ldarx %0,0,%1\n" \ - " cmpd %0,%2\n" \ - " bne 2f\n" \ - " stdcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&r" (__tmp) \ - : "b" (__memp), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp; \ - }) - -#define __arch_compare_and_exchange_val_64_rel(mem, newval, oldval) \ - ({ \ - __typeof (*(mem)) __tmp; \ - __typeof (mem) __memp = (mem); \ - __asm__ __volatile__ (__ARCH_REL_INSTR "\n" \ - "1: ldarx %0,0,%1\n" \ - " cmpd %0,%2\n" \ - " bne 2f\n" \ - " stdcx. %3,0,%1\n" \ - " bne- 1b\n" \ - "2: " \ - : "=&r" (__tmp) \ - : "b" (__memp), "r" (oldval), "r" (newval) \ - : "cr0", "memory"); \ - __tmp; \ - }) - -# define __arch_atomic_exchange_64_acq(mem, value) \ - ({ \ - __typeof (*mem) __val; \ - __asm__ __volatile__ (__ARCH_REL_INSTR "\n" \ - "1: ldarx %0,0,%2\n" \ - " stdcx. %3,0,%2\n" \ - " bne- 1b\n" \ - " " __ARCH_ACQ_INSTR \ - : "=&r" (__val), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -# define __arch_atomic_exchange_64_rel(mem, value) \ - ({ \ - __typeof (*mem) __val; \ - __asm__ __volatile__ (__ARCH_REL_INSTR "\n" \ - "1: ldarx %0,0,%2\n" \ - " stdcx. %3,0,%2\n" \ - " bne- 1b" \ - : "=&r" (__val), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -# define __arch_atomic_exchange_and_add_64(mem, value) \ - ({ \ - __typeof (*mem) __val, __tmp; \ - __asm__ __volatile__ ("1: ldarx %0,0,%3\n" \ - " add %1,%0,%4\n" \ - " stdcx. %1,0,%3\n" \ - " bne- 1b" \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "r" (value), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -# define __arch_atomic_increment_val_64(mem) \ - ({ \ - __typeof (*(mem)) __val; \ - __asm__ __volatile__ ("1: ldarx %0,0,%2\n" \ - " addi %0,%0,1\n" \ - " stdcx. %0,0,%2\n" \ - " bne- 1b" \ - : "=&b" (__val), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -# define __arch_atomic_decrement_val_64(mem) \ - ({ \ - __typeof (*(mem)) __val; \ - __asm__ __volatile__ ("1: ldarx %0,0,%2\n" \ - " subi %0,%0,1\n" \ - " stdcx. %0,0,%2\n" \ - " bne- 1b" \ - : "=&b" (__val), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -# define __arch_atomic_decrement_if_positive_64(mem) \ - ({ int __val, __tmp; \ - __asm__ __volatile__ ("1: ldarx %0,0,%3\n" \ - " cmpdi 0,%0,0\n" \ - " addi %1,%0,-1\n" \ - " ble 2f\n" \ - " stdcx. %1,0,%3\n" \ - " bne- 1b\n" \ - "2: " __ARCH_ACQ_INSTR \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*mem) \ - : "b" (mem), "m" (*mem) \ - : "cr0", "memory"); \ - __val; \ - }) - -/* - * All powerpc64 processors support the new "light weight" sync (lwsync). - */ -# define atomic_read_barrier() __asm__ ("lwsync" ::: "memory") -/* - * "light weight" sync can also be used for the release barrier. - */ -# ifndef UP -# define __ARCH_REL_INSTR "lwsync" -# endif - -#else /* Atomic operations. PowerPC32 version. Copyright (C) 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -261,12 +17,6 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -/* - * The 32-bit exchange_bool is different on powerpc64 because the subf - * does signed 64-bit arthmatic while the lwarx is 32-bit unsigned - * (a load word and zero (high 32) form). So powerpc64 has a slightly - * different version in sysdeps/powerpc/powerpc64/bits/atomic.h. - */ # define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \ ({ \ unsigned int __tmp; \ @@ -355,8 +105,6 @@ # define atomic_read_barrier() __asm__ ("sync" ::: "memory") #endif -#endif - #include <stdint.h> typedef int32_t atomic32_t; diff --git a/libc/sysdeps/linux/powerpc/bits/mathinline.h b/libc/sysdeps/linux/powerpc/bits/mathinline.h index 206ca977e..f98d4d60b 100644 --- a/libc/sysdeps/linux/powerpc/bits/mathinline.h +++ b/libc/sysdeps/linux/powerpc/bits/mathinline.h @@ -57,30 +57,12 @@ # endif /* __GNUC_PREREQ (2,97) */ -/* The gcc, version 2.7 or below, has problems with all this inlining - code. So disable it for this version of the compiler. */ -# if __GNUC_PREREQ (2, 8) -/* Test for negative number. Used in the signbit() macro. */ -__MATH_INLINE int -__NTH (__signbitf (float __x)) -{ - __extension__ union { float __f; int __i; } __u = { __f: __x }; - return __u.__i < 0; -} -__MATH_INLINE int -__NTH (__signbit (double __x)) -{ - __extension__ union { double __d; int __i[2]; } __u = { __d: __x }; - return __u.__i[0] < 0; -} -# endif #endif /* __USE_ISOC99 */ #if !defined __NO_MATH_INLINES && defined __OPTIMIZE__ #ifdef __USE_ISOC99 -# ifndef __powerpc64__ __MATH_INLINE long int lrint (double __x) __THROW; __MATH_INLINE long int __NTH (lrint (double __x)) @@ -104,7 +86,6 @@ __NTH (lrintf (float __x)) __asm__ ("fctiw %0,%1" : "=f"(__u.__d) : "f"(__x)); return __u.__ll[1]; } -# endif __MATH_INLINE double fdim (double __x, double __y) __THROW; __MATH_INLINE double @@ -123,62 +104,5 @@ __NTH (fdimf (float __x, float __y)) #endif /* __USE_ISOC99 */ #endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ -/* This code is used internally in the GNU libc. */ -#if 0 /*def __LIBC_INTERNAL_MATH_INLINES*/ - -#include <sysdep.h> -#include <ldsodefs.h> -#include <dl-procinfo.h> - -# if __WORDSIZE == 64 || defined _ARCH_PWR4 -# define __CPU_HAS_FSQRT 1 -# else -# define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0) -# endif - -extern double __slow_ieee754_sqrt (double); -__MATH_INLINE double -__NTH (__ieee754_sqrt (double __x)) -{ - double __z; - - /* If the CPU is 64-bit we can use the optional FP instructions. */ - if (__CPU_HAS_FSQRT) - { - /* Volatile is required to prevent the compiler from moving the - fsqrt instruction above the branch. */ - __asm__ __volatile__ ( - " fsqrt %0,%1\n" - : "=f" (__z) - : "f" (__x)); - } - else - __z = __slow_ieee754_sqrt(__x); - - return __z; -} - -extern float __slow_ieee754_sqrtf (float); -__MATH_INLINE float -__NTH (__ieee754_sqrtf (float __x)) -{ - float __z; - - /* If the CPU is 64-bit we can use the optional FP instructions. */ - if (__CPU_HAS_FSQRT) - { - /* Volatile is required to prevent the compiler from moving the - fsqrts instruction above the branch. */ - __asm__ __volatile__ ( - " fsqrts %0,%1\n" - : "=f" (__z) - : "f" (__x)); - } - else - __z = __slow_ieee754_sqrtf(__x); - - return __z; -} -#endif /* __LIBC_INTERNAL_MATH_INLINES */ #endif /* __GNUC__ && !_SOFT_FLOAT */ diff --git a/libc/sysdeps/linux/powerpc/bits/setjmp.h b/libc/sysdeps/linux/powerpc/bits/setjmp.h index 46e8bf7d1..1cc1d836e 100644 --- a/libc/sysdeps/linux/powerpc/bits/setjmp.h +++ b/libc/sysdeps/linux/powerpc/bits/setjmp.h @@ -29,8 +29,6 @@ assembler easier. Naturally, user code should not depend on either representation. */ -#include <bits/wordsize.h> - /* The current powerpc 32-bit Altivec ABI specifies for SVR4 ABI and EABI the vrsave must be at byte 248 & v20 at byte 256. So we must pad this correctly on 32 bit. It also insists that vecregs are only gauranteed @@ -38,12 +36,9 @@ We have to version the code because members like int __mask_was_saved in the jmp_buf will move as jmp_buf is now larger than 248 bytes. We cannot keep the altivec jmp_buf backward compatible with the jmp_buf. */ -#if __WORDSIZE == 64 -typedef long int __jmp_buf[64] __attribute__ ((__aligned__ (16))); -#else + /* The alignment is not essential, i.e.the buffer can be copied to a 4 byte aligned buffer as per the ABI it is just added for performance reasons. */ typedef long int __jmp_buf[64 + (12 * 4)] __attribute__ ((__aligned__ (16))); -#endif #endif /* bits/setjmp.h */ diff --git a/libc/sysdeps/linux/powerpc/bits/stat.h b/libc/sysdeps/linux/powerpc/bits/stat.h index 10fa2cbf7..a90043f8a 100644 --- a/libc/sysdeps/linux/powerpc/bits/stat.h +++ b/libc/sysdeps/linux/powerpc/bits/stat.h @@ -20,27 +20,18 @@ # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." #endif -#include <bits/wordsize.h> - /* Versions of the `struct stat' data structure. */ #define _STAT_VER_LINUX_OLD 1 #define _STAT_VER_KERNEL 1 #define _STAT_VER_SVR4 2 #define _STAT_VER_LINUX 3 -#if __WORDSIZE == 32 -# define _STAT_VER _STAT_VER_LINUX -#else -# define _STAT_VER _STAT_VER_KERNEL -#endif +#define _STAT_VER _STAT_VER_LINUX /* Versions of the `xmknod' interface. */ #define _MKNOD_VER_LINUX 1 #define _MKNOD_VER_SVR4 2 #define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */ - -#if __WORDSIZE == 32 - struct stat { __dev_t st_dev; /* Device. */ @@ -134,103 +125,6 @@ struct stat64 }; # endif /* __USE_LARGEFILE64 */ -#else /* __WORDSIZE == 32 */ - -struct stat - { - __dev_t st_dev; /* Device. */ -# ifndef __USE_FILE_OFFSET64 - __ino_t st_ino; /* File serial number. */ -# else - __ino64_t st_ino; /* File serial number. */ -# endif - __nlink_t st_nlink; /* Link count. */ - __mode_t st_mode; /* File mode. */ - __uid_t st_uid; /* User ID of the file's owner. */ - __gid_t st_gid; /* Group ID of the file's group.*/ - int __pad2; - __dev_t st_rdev; /* Device number, if device. */ -# ifndef __USE_FILE_OFFSET64 - __off_t st_size; /* Size of file, in bytes. */ -# else - __off64_t st_size; /* Size of file, in bytes. */ -# endif - __blksize_t st_blksize; /* Optimal block size for I/O. */ - -# ifndef __USE_FILE_OFFSET64 - __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */ -# else - __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ -# endif -#ifdef __USE_MISC - /* Nanosecond resolution timestamps are stored in a format - equivalent to 'struct timespec'. This is the type used - whenever possible but the Unix namespace rules do not allow the - identifier 'timespec' to appear in the <sys/stat.h> header. - Therefore we have to handle the use of this header in strictly - standard-compliant sources special. */ - struct timespec st_atim; /* Time of last access. */ - struct timespec st_mtim; /* Time of last modification. */ - struct timespec st_ctim; /* Time of last status change. */ -# define st_atime st_atim.tv_sec /* Backward compatibility. */ -# define st_mtime st_mtim.tv_sec -# define st_ctime st_ctim.tv_sec -#else - __time_t st_atime; /* Time of last access. */ - unsigned long int st_atimensec; /* Nscecs of last access. */ - __time_t st_mtime; /* Time of last modification. */ - unsigned long int st_mtimensec; /* Nsecs of last modification. */ - __time_t st_ctime; /* Time of last status change. */ - unsigned long int st_ctimensec; /* Nsecs of last status change. */ -#endif - unsigned long int __unused4; - unsigned long int __unused5; - unsigned long int __unused6; - }; - -# ifdef __USE_LARGEFILE64 -struct stat64 - { - __dev_t st_dev; /* Device. */ - __ino64_t st_ino; /* File serial number. */ - __nlink_t st_nlink; /* Link count. */ - __mode_t st_mode; /* File mode. */ - __uid_t st_uid; /* User ID of the file's owner. */ - __gid_t st_gid; /* Group ID of the file's group.*/ - int __pad2; - __dev_t st_rdev; /* Device number, if device. */ - __off64_t st_size; /* Size of file, in bytes. */ - __blksize_t st_blksize; /* Optimal block size for I/O. */ - __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ -#ifdef __USE_MISC - /* Nanosecond resolution timestamps are stored in a format - equivalent to 'struct timespec'. This is the type used - whenever possible but the Unix namespace rules do not allow the - identifier 'timespec' to appear in the <sys/stat.h> header. - Therefore we have to handle the use of this header in strictly - standard-compliant sources special. */ - struct timespec st_atim; /* Time of last access. */ - struct timespec st_mtim; /* Time of last modification. */ - struct timespec st_ctim; /* Time of last status change. */ -# define st_atime st_atim.tv_sec /* Backward compatibility. */ -# define st_mtime st_mtim.tv_sec -# define st_ctime st_ctim.tv_sec -#else - __time_t st_atime; /* Time of last access. */ - unsigned long int st_atimensec; /* Nscecs of last access. */ - __time_t st_mtime; /* Time of last modification. */ - unsigned long int st_mtimensec; /* Nsecs of last modification. */ - __time_t st_ctime; /* Time of last status change. */ - unsigned long int st_ctimensec; /* Nsecs of last status change. */ -#endif - unsigned long int __unused4; - unsigned long int __unused5; - unsigned long int __unused6; - }; -# endif /* __USE_LARGEFILE64 */ -#endif - - /* Tell code we have these members. */ #define _STATBUF_ST_BLKSIZE #define _STATBUF_ST_RDEV diff --git a/libc/sysdeps/linux/powerpc/bits/wordsize.h b/libc/sysdeps/linux/powerpc/bits/wordsize.h index 3e8a1e0a1..0c0d31b98 100644 --- a/libc/sysdeps/linux/powerpc/bits/wordsize.h +++ b/libc/sysdeps/linux/powerpc/bits/wordsize.h @@ -1,11 +1,6 @@ /* Determine the wordsize from the preprocessor defines. */ -#if defined __powerpc64__ -# define __WORDSIZE 64 -# define __WORDSIZE_TIME64_COMPAT32 1 -#else -# define __WORDSIZE 32 -#endif +#define __WORDSIZE 32 #if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL |