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Remove malloc hooks [BZ #23328]

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Make malloc hooks symbols compat-only so that new applications cannot
link against them and remove the declarations from the API.  Also
remove the unused malloc-hooks.h.

Finally, mark all symbols in libc_malloc_debug.so as compat so that
the library cannot be linked against.

Add a note about the deprecation in NEWS.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Siddhesh Poyarekar
2021-07-22 18:38:12 +05:30
parent 0552fd2c7d
commit 1e5a5866cb
6 changed files with 57 additions and 226 deletions
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6
malloc/hooks.c
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@ -32,12 +32,16 @@ void weak_variable (*__after_morecore_hook) (void) = NULL;
compat_symbol (libc, __after_morecore_hook, __after_morecore_hook, GLIBC_2_0);
void *(*__morecore)(ptrdiff_t);
compat_symbol (libc, __morecore, __morecore, GLIBC_2_0);
#endif
void weak_variable (*__free_hook) (void *, const void *) = NULL;
void *weak_variable (*__malloc_hook) (size_t, const void *) = NULL;
void *weak_variable (*__realloc_hook) (void *, size_t, const void *) = NULL;
void *weak_variable (*__memalign_hook) (size_t, size_t, const void *) = NULL;
compat_symbol (libc, __free_hook, __free_hook, GLIBC_2_0);
compat_symbol (libc, __malloc_hook, __malloc_hook, GLIBC_2_0);
compat_symbol (libc, __realloc_hook, __realloc_hook, GLIBC_2_0);
compat_symbol (libc, __memalign_hook, __memalign_hook, GLIBC_2_0);
#endif
/*
* Local variables: