diff options
Diffstat (limited to 'libc')
-rw-r--r-- | libc/misc/utmp/utent.c | 7 | ||||
-rw-r--r-- | libc/stdlib/random.c | 7 | ||||
-rw-r--r-- | libc/stdlib/random_r.c | 129 | ||||
-rw-r--r-- | libc/sysdeps/linux/common/getdents.c | 1 | ||||
-rw-r--r-- | libc/sysdeps/linux/common/getdents64.c | 2 | ||||
-rw-r--r-- | libc/sysdeps/linux/common/mmap64.c | 1 | ||||
-rw-r--r-- | libc/sysdeps/linux/hppa/bits/setjmp.h | 2 | ||||
-rw-r--r-- | libc/sysdeps/linux/mips/sys/tas.h | 33 |
8 files changed, 87 insertions, 95 deletions
diff --git a/libc/misc/utmp/utent.c b/libc/misc/utmp/utent.c index c1d8d6fa2..aa74cb544 100644 --- a/libc/misc/utmp/utent.c +++ b/libc/misc/utmp/utent.c @@ -108,7 +108,7 @@ struct utmp *getutent(void) } /* Locking is done in __getutent */ -struct utmp *getutid (const struct utmp *utmp_entry) +struct utmp attribute_hidden *__getutid (const struct utmp *utmp_entry) { struct utmp *lutmp; @@ -133,6 +133,7 @@ struct utmp *getutid (const struct utmp *utmp_entry) return NULL; } +strong_alias(__getutid,getutid) /* Locking is done in __getutent */ struct utmp *getutline(const struct utmp *utmp_entry) @@ -150,6 +151,8 @@ struct utmp *getutline(const struct utmp *utmp_entry) return NULL; } +extern struct utmp *__getutid (__const struct utmp *__id) attribute_hidden; + struct utmp *pututline (const struct utmp *utmp_entry) { LOCK; @@ -157,7 +160,7 @@ struct utmp *pututline (const struct utmp *utmp_entry) the file pointer where they want it, everything will work out. */ lseek(static_fd, (off_t) - sizeof(struct utmp), SEEK_CUR); - if (getutid(utmp_entry) != NULL) { + if (__getutid(utmp_entry) != NULL) { lseek(static_fd, (off_t) - sizeof(struct utmp), SEEK_CUR); if (write(static_fd, utmp_entry, sizeof(struct utmp)) != sizeof(struct utmp)) return NULL; diff --git a/libc/stdlib/random.c b/libc/stdlib/random.c index b0a00e15c..3ffa50690 100644 --- a/libc/stdlib/random.c +++ b/libc/stdlib/random.c @@ -22,6 +22,9 @@ * Rewritten to use reentrant functions by Ulrich Drepper, 1995. */ +#define random_r __random_r +#define srandom_r __srandom_r + #define _GNU_SOURCE #include <features.h> #include <limits.h> @@ -243,7 +246,7 @@ char * setstate (char *arg_state) rear pointers can't wrap on the same call by not testing the rear pointer if the front one has wrapped. Returns a 31-bit random number. */ -long int random () +long int attribute_hidden __random (void) { int32_t retval; @@ -252,4 +255,4 @@ long int random () __pthread_mutex_unlock(&lock); return retval; } - +strong_alias(__random,random) diff --git a/libc/stdlib/random_r.c b/libc/stdlib/random_r.c index fce3a98ab..9e203f0d5 100644 --- a/libc/stdlib/random_r.c +++ b/libc/stdlib/random_r.c @@ -123,6 +123,66 @@ static const struct random_poly_info random_poly_info = +/* If we are using the trivial TYPE_0 R.N.G., just do the old linear + congruential bit. Otherwise, we do our fancy trinomial stuff, which is the + same in all the other cases due to all the global variables that have been + set up. The basic operation is to add the number at the rear pointer into + the one at the front pointer. Then both pointers are advanced to the next + location cyclically in the table. The value returned is the sum generated, + reduced to 31 bits by throwing away the "least random" low bit. + Note: The code takes advantage of the fact that both the front and + rear pointers can't wrap on the same call by not testing the rear + pointer if the front one has wrapped. Returns a 31-bit random number. */ + +int attribute_hidden __random_r(struct random_data *buf, int32_t *result) +{ + int32_t *state; + + if (buf == NULL || result == NULL) + goto fail; + + state = buf->state; + + if (buf->rand_type == TYPE_0) + { + int32_t val = state[0]; + val = ((state[0] * 1103515245) + 12345) & 0x7fffffff; + state[0] = val; + *result = val; + } + else + { + int32_t *fptr = buf->fptr; + int32_t *rptr = buf->rptr; + int32_t *end_ptr = buf->end_ptr; + int32_t val; + + val = *fptr += *rptr; + /* Chucking least random bit. */ + *result = (val >> 1) & 0x7fffffff; + ++fptr; + if (fptr >= end_ptr) + { + fptr = state; + ++rptr; + } + else + { + ++rptr; + if (rptr >= end_ptr) + rptr = state; + } + buf->fptr = fptr; + buf->rptr = rptr; + } + return 0; + +fail: + __set_errno (EINVAL); + return -1; +} +strong_alias(__random_r,random_r) + /* Initialize the random number generator based on the given seed. If the type is the trivial no-state-information type, just remember the seed. Otherwise, initializes state[] based on the given "seed" via a linear @@ -131,7 +191,7 @@ static const struct random_poly_info random_poly_info = information a given number of times to get rid of any initial dependencies introduced by the L.C.R.N.G. Note that the initialization of randtbl[] for default usage relies on values produced by this routine. */ -int srandom_r (unsigned int seed, struct random_data *buf) +int attribute_hidden __srandom_r (unsigned int seed, struct random_data *buf) { int type; int32_t *state; @@ -176,7 +236,7 @@ int srandom_r (unsigned int seed, struct random_data *buf) while (--kc >= 0) { int32_t discard; - (void) random_r (buf, &discard); + (void) __random_r (buf, &discard); } done: @@ -185,6 +245,7 @@ done: fail: return -1; } +strong_alias(__srandom_r,srandom_r) /* Initialize the state information in the given array of N bytes for future random number generation. Based on the number of bytes we @@ -237,7 +298,7 @@ int initstate_r (seed, arg_state, n, buf) buf->state = state; - srandom_r (seed, buf); + __srandom_r (seed, buf); state[-1] = TYPE_0; if (type != TYPE_0) @@ -301,65 +362,3 @@ fail: __set_errno (EINVAL); return -1; } - -/* If we are using the trivial TYPE_0 R.N.G., just do the old linear - congruential bit. Otherwise, we do our fancy trinomial stuff, which is the - same in all the other cases due to all the global variables that have been - set up. The basic operation is to add the number at the rear pointer into - the one at the front pointer. Then both pointers are advanced to the next - location cyclically in the table. The value returned is the sum generated, - reduced to 31 bits by throwing away the "least random" low bit. - Note: The code takes advantage of the fact that both the front and - rear pointers can't wrap on the same call by not testing the rear - pointer if the front one has wrapped. Returns a 31-bit random number. */ - -int random_r (buf, result) - struct random_data *buf; - int32_t *result; -{ - int32_t *state; - - if (buf == NULL || result == NULL) - goto fail; - - state = buf->state; - - if (buf->rand_type == TYPE_0) - { - int32_t val = state[0]; - val = ((state[0] * 1103515245) + 12345) & 0x7fffffff; - state[0] = val; - *result = val; - } - else - { - int32_t *fptr = buf->fptr; - int32_t *rptr = buf->rptr; - int32_t *end_ptr = buf->end_ptr; - int32_t val; - - val = *fptr += *rptr; - /* Chucking least random bit. */ - *result = (val >> 1) & 0x7fffffff; - ++fptr; - if (fptr >= end_ptr) - { - fptr = state; - ++rptr; - } - else - { - ++rptr; - if (rptr >= end_ptr) - rptr = state; - } - buf->fptr = fptr; - buf->rptr = rptr; - } - return 0; - -fail: - __set_errno (EINVAL); - return -1; -} - diff --git a/libc/sysdeps/linux/common/getdents.c b/libc/sysdeps/linux/common/getdents.c index 623041866..876420664 100644 --- a/libc/sysdeps/linux/common/getdents.c +++ b/libc/sysdeps/linux/common/getdents.c @@ -26,7 +26,6 @@ #include <unistd.h> #include <sys/param.h> #include <sys/types.h> -#include "sysdep.h" #include <sys/syscall.h> diff --git a/libc/sysdeps/linux/common/getdents64.c b/libc/sysdeps/linux/common/getdents64.c index 7b4c0d4ce..e45d9d364 100644 --- a/libc/sysdeps/linux/common/getdents64.c +++ b/libc/sysdeps/linux/common/getdents64.c @@ -25,7 +25,6 @@ #include <stdint.h> #include <string.h> #include <unistd.h> -#include "sysdep.h" #include <sys/param.h> #include <sys/types.h> #include <sys/syscall.h> @@ -110,4 +109,3 @@ ssize_t attribute_hidden __getdents64 (int fd, char *buf, size_t nbytes) return(__getdents(fd, buf, nbytes)); } #endif /* __UCLIBC_HAS_LFS__ */ - diff --git a/libc/sysdeps/linux/common/mmap64.c b/libc/sysdeps/linux/common/mmap64.c index 969e1e227..7f329c6c9 100644 --- a/libc/sysdeps/linux/common/mmap64.c +++ b/libc/sysdeps/linux/common/mmap64.c @@ -22,7 +22,6 @@ #include <features.h> #include <errno.h> #include <unistd.h> -#include "sysdep.h" #include <sys/mman.h> diff --git a/libc/sysdeps/linux/hppa/bits/setjmp.h b/libc/sysdeps/linux/hppa/bits/setjmp.h index 253e92603..4395b8f56 100644 --- a/libc/sysdeps/linux/hppa/bits/setjmp.h +++ b/libc/sysdeps/linux/hppa/bits/setjmp.h @@ -40,6 +40,6 @@ typedef double __jmp_buf[21]; /* Test if longjmp to JMPBUF would unwind the frame containing a local variable at ADDRESS. */ #define _JMPBUF_UNWINDS(_jmpbuf, _address) \ - ((void *)(_address) > (void *)(_jmpbuf[JB_SP])) + ((void *)(_address) > (void *)(((unsigned long *) _jmpbuf)[JB_SP])) #endif /* bits/setjmp.h */ diff --git a/libc/sysdeps/linux/mips/sys/tas.h b/libc/sysdeps/linux/mips/sys/tas.h index 0c81dc2de..1183b867b 100644 --- a/libc/sysdeps/linux/mips/sys/tas.h +++ b/libc/sysdeps/linux/mips/sys/tas.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2000 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000. @@ -22,7 +22,6 @@ #include <features.h> #include <sgidefs.h> -#include <sys/sysmips.h> __BEGIN_DECLS @@ -34,24 +33,26 @@ extern int _test_and_set (int *p, int v) __THROW; # define _EXTERN_INLINE extern __inline # endif -# if (_MIPS_ISA >= _MIPS_ISA_MIPS2) - _EXTERN_INLINE int -_test_and_set (int *p, int v) __THROW +__NTH (_test_and_set (int *p, int v)) { int r, t; __asm__ __volatile__ - ("1:\n\t" - "ll %0,%3\n\t" + ("/* Inline test and set */\n" + "1:\n\t" ".set push\n\t" - ".set noreorder\n\t" +#if _MIPS_SIM == _ABIO32 + ".set mips2\n\t" +#endif + "ll %0,%3\n\t" + "move %1,%4\n\t" "beq %0,%4,2f\n\t" - " move %1,%4\n\t" - ".set pop\n\t" "sc %1,%2\n\t" + ".set pop\n\t" "beqz %1,1b\n" - "2:\n" + "2:\n\t" + "/* End test and set */" : "=&r" (r), "=&r" (t), "=m" (*p) : "m" (*p), "r" (v) : "memory"); @@ -59,16 +60,6 @@ _test_and_set (int *p, int v) __THROW return r; } -# else /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */ - -_EXTERN_INLINE int -_test_and_set (int *p, int v) __THROW -{ - return sysmips (MIPS_ATOMIC_SET, (int) p, v, 0); -} - -# endif /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */ - #endif /* __USE_EXTERN_INLINES */ __END_DECLS |