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malloc: Remove use of __curbrk

Remove an odd use of __curbrk and use MORECORE (0) instead.
This fixes Hurd build since it doesn't define this symbol.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Wilco Dijkstra
2025-08-08 13:59:31 +00:00
parent fd9ffafc0e
commit 94ebcfc4f2

View File

@@ -2642,13 +2642,11 @@ sysmalloc (INTERNAL_SIZE_T nb, mstate av)
previous calls. Otherwise, we correct to page-align below. previous calls. Otherwise, we correct to page-align below.
*/ */
/* Defined in brk.c. */
extern void *__curbrk;
if (__glibc_unlikely (mp_.thp_pagesize != 0)) if (__glibc_unlikely (mp_.thp_pagesize != 0))
{ {
uintptr_t top = ALIGN_UP ((uintptr_t) __curbrk + size, uintptr_t lastbrk = (uintptr_t) MORECORE (0);
mp_.thp_pagesize); uintptr_t top = ALIGN_UP (lastbrk + size, mp_.thp_pagesize);
size = top - (uintptr_t) __curbrk; size = top - lastbrk;
} }
else else
size = ALIGN_UP (size, GLRO(dl_pagesize)); size = ALIGN_UP (size, GLRO(dl_pagesize));