From 3a0ecccb599a6b1ad4b149dc569c0080e92d057b Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Sat, 8 Feb 2020 19:58:43 +0100 Subject: ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] Exporting functions and relying on symbol interposition from libc.so makes the choice of implementation dependent on DT_NEEDED order, which is not what some compiler drivers expect. This commit replaces one magic mechanism (symbol interposition) with another one (preprocessor-/compiler-based redirection). This makes the hand-over from the minimal malloc to the full malloc more explicit. Removing the ABI symbols is backwards-compatible because libc.so is always in scope, and the dynamic loader will find the malloc-related symbols there since commit f0b2132b35248c1f4a80f62a2c38cddcc802aa8c ("ld.so: Support moving versioned symbols between sonames [BZ #24741]"). Reviewed-by: Carlos O'Donell --- include/malloc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/malloc.h') diff --git a/include/malloc.h b/include/malloc.h index 70d32c7c84..0765482c51 100644 --- a/include/malloc.h +++ b/include/malloc.h @@ -1,7 +1,9 @@ #ifndef _MALLOC_H + #include # ifndef _ISOMAC +# include /* In the GNU libc we rename the global variable `__malloc_initialized' to `__libc_malloc_initialized'. */ -- cgit 1.4.1