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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

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This commit is contained in:
Ulrich Drepper
2004-12-22 20:10:10 +00:00
parent 0ecb606cb6
commit a334319f65
6215 changed files with 304673 additions and 494300 deletions
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38
elf/dl-minimal.c
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@ -1,6 +1,5 @@
/* Minimal replacements for basic facilities used in the dynamic linker.
Copyright (C) 1995-1998,2000-2002,2004-2006,2007
Free Software Foundation, Inc.
Copyright (C) 1995-1998,2000-2002,2004 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
@ -75,21 +74,14 @@ __libc_memalign (size_t align, size_t n)
alloc_ptr = (void *) 0 + (((alloc_ptr - (void *) 0) + align - 1)
& ~(align - 1));
if (alloc_ptr + n >= alloc_end || n >= -(uintptr_t) alloc_ptr)
if (alloc_ptr + n >= alloc_end)
{
/* Insufficient space left; allocate another page. */
caddr_t page;
size_t nup = (n + GLRO(dl_pagesize) - 1) & ~(GLRO(dl_pagesize) - 1);
if (__builtin_expect (nup == 0, 0))
{
if (n)
return NULL;
nup = GLRO(dl_pagesize);
}
page = __mmap (0, nup, PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, _dl_zerofd, 0);
if (page == MAP_FAILED)
return NULL;
assert (page != MAP_FAILED);
if (page != alloc_end)
alloc_ptr = page;
alloc_end = page + nup;
@ -115,14 +107,7 @@ calloc (size_t nmemb, size_t size)
/* New memory from the trivial malloc above is always already cleared.
(We make sure that's true in the rare occasion it might not be,
by clearing memory in free, below.) */
size_t bytes = nmemb * size;
#define HALF_SIZE_T (((size_t) 1) << (8 * sizeof (size_t) / 2))
if (__builtin_expect ((nmemb | size) >= HALF_SIZE_T, 0)
&& size != 0 && bytes / size != nmemb)
return NULL;
return malloc (bytes);
return malloc (nmemb * size);
}
/* This will rarely be called. */
@ -143,13 +128,14 @@ free (void *ptr)
void * weak_function
realloc (void *ptr, size_t n)
{
void *new;
if (ptr == NULL)
return malloc (n);
assert (ptr == alloc_last_block);
size_t old_size = alloc_ptr - alloc_last_block;
alloc_ptr = alloc_last_block;
void *new = malloc (n);
return new != ptr ? memcpy (new, ptr, old_size) : new;
new = malloc (n);
assert (new == ptr);
return new;
}
/* Avoid signal frobnication in setjmp/longjmp. Keeps things smaller. */
@ -162,6 +148,12 @@ __sigjmp_save (sigjmp_buf env, int savemask __attribute__ ((unused)))
env[0].__mask_was_saved = 0;
return 0;
}
void weak_function
longjmp (jmp_buf env, int val)
{
__longjmp (env[0].__jmpbuf, val);
}
/* Define our own version of the internal function used by strerror. We
only provide the messages for some common errors. This avoids pulling
@ -278,7 +270,7 @@ __strtoul_internal (const char *nptr, char **endptr, int base, int group)
while (*nptr >= '0' && *nptr <= '9')
{
unsigned long int digval = *nptr - '0';
if (result > ULONG_MAX / 10
if (result > LONG_MAX / 10
|| (result == ULONG_MAX / 10 && digval > ULONG_MAX % 10))
{
errno = ERANGE;