From 94ebcfc4f253129ca772392fe034eea6c0aa6963 Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Fri, 8 Aug 2025 13:59:31 +0000 Subject: [PATCH] malloc: Remove use of __curbrk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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  --- malloc/malloc.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/malloc/malloc.c b/malloc/malloc.c index 9d646abae9..5257ee24fd 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -2642,13 +2642,11 @@ sysmalloc (INTERNAL_SIZE_T nb, mstate av) previous calls. Otherwise, we correct to page-align below. */ - /* Defined in brk.c. */ - extern void *__curbrk; if (__glibc_unlikely (mp_.thp_pagesize != 0)) { - uintptr_t top = ALIGN_UP ((uintptr_t) __curbrk + size, - mp_.thp_pagesize); - size = top - (uintptr_t) __curbrk; + uintptr_t lastbrk = (uintptr_t) MORECORE (0); + uintptr_t top = ALIGN_UP (lastbrk + size, mp_.thp_pagesize); + size = top - lastbrk; } else size = ALIGN_UP (size, GLRO(dl_pagesize));