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malloc: Fix malloc debug for 2.35 onwards

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The change 1e5a5866cb ("Remove malloc hooks [BZ #23328]") has broken
ports that are using GLIBC_2_35, like the new OpenRISC port I am working
on.

The libc_malloc_debug.so library used to bring in the debug
infrastructure is currently essentially empty for GLIBC_2_35 ports like
mine causing mtrace tests to fail:

    cat sysdeps/unix/sysv/linux/or1k/shlib-versions
    DEFAULT                 GLIBC_2.35
    ld=ld-linux-or1k.so.1

    FAIL: posix/bug-glob2-mem
    FAIL: posix/bug-regex14-mem
    FAIL: posix/bug-regex2-mem
    FAIL: posix/bug-regex21-mem
    FAIL: posix/bug-regex31-mem
    FAIL: posix/bug-regex36-mem
    FAIL: malloc/tst-mtrace.

The issue seems to be with the ifdefs in malloc/malloc-debug.c. The
ifdefs are currently essentially exluding all symbols for ports > 2.35.

Removing the top level SHLIB_COMPAT ifdef allows things to just work.

Fixes: 1e5a5866cb ("Remove malloc hooks [BZ #23328]")
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Stafford Horne 2021-10-13 19:43:30 +09:00
parent f1d333b5bf
commit f1bcfde3a7
1 changed files with 0 additions and 2 deletions
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2
malloc/malloc-debug.c
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@ -24,7 +24,6 @@
#include <unistd.h>
#include <sys/param.h>
#if SHLIB_COMPAT (libc_malloc_debug, GLIBC_2_0, GLIBC_2_34)
/* Support only the glibc allocators. */
extern void *__libc_malloc (size_t);
extern void __libc_free (void *);
@ -669,4 +668,3 @@ compat_symbol (libc_malloc_debug, __free_hook, __free_hook, GLIBC_2_0);
compat_symbol (libc_malloc_debug, __malloc_hook, __malloc_hook, GLIBC_2_0);
compat_symbol (libc_malloc_debug, __realloc_hook, __realloc_hook, GLIBC_2_0);
compat_symbol (libc_malloc_debug, __memalign_hook, __memalign_hook, GLIBC_2_0);
#endif