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Simplify malloc initialization

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Singificantly reduce the code needed at malloc initialization.  In
the process getpagesize is simplified by always initializing
GLRO(dl_pagesize).
This commit is contained in:
Ulrich Drepper
2011-09-10 21:47:36 -04:00
parent 22a8918713
commit 02d46fc4b9
8 changed files with 65 additions and 98 deletions
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4
malloc/hooks.c
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@ -147,7 +147,7 @@ mem2chunk_check(void* mem, unsigned char **magic_p)
if(c<=0 || sz<(c+2*SIZE_SZ)) return NULL;
}
} else {
unsigned long offset, page_mask = malloc_getpagesize-1;
unsigned long offset, page_mask = GLRO(dl_pagesize)-1;
/* mmap()ed chunks have MALLOC_ALIGNMENT or higher power-of-two
alignment relative to the beginning of a page. Check this
@ -182,7 +182,7 @@ top_check(void)
mchunkptr t = top(&main_arena);
char* brk, * new_brk;
INTERNAL_SIZE_T front_misalign, sbrk_size;
unsigned long pagesz = malloc_getpagesize;
unsigned long pagesz = GLRO(dl_pagesize);
if (t == initial_top(&main_arena) ||
(!chunk_is_mmapped(t) &&