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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-07-22 18:38:12 +0530 |
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| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-07-22 18:38:12 +0530 |
| commit | 1e5a5866cb9541b5231dba3d86c8a1a35d516de9 (patch) | |
| tree | 85e7ca8d6a87ee9f50ea09ccf3ec1fb91770ed16 /NEWS | |
| parent | 0552fd2c7d4e8a570cb4fe4dfe65e96f6d24b0cd (diff) | |
| download | glibc-1e5a5866cb9541b5231dba3d86c8a1a35d516de9.zip glibc-1e5a5866cb9541b5231dba3d86c8a1a35d516de9.tar.gz glibc-1e5a5866cb9541b5231dba3d86c8a1a35d516de9.tar.bz2 | |
Remove malloc hooks [BZ #23328]
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>
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -143,6 +143,16 @@ Deprecated and removed features, and other changes affecting compatibility: that still use these functions will now need to preload libc_malloc_debug.so in their environment using the LD_PRELOAD environment variable. +* The deprecated memory allocation hooks __malloc_hook, __realloc_hook, + __memalign_hook and __free_hook are now removed from the API. Compatibility + symbols are present to support legacy programs but new applications can no + longer link to these symbols. These hooks no longer have any effect on glibc + functionality. The malloc debugging DSO libc_malloc_debug.so currently + supports hooks and can be preloaded to get this functionality back for older + programs. However this is a transitional measure and may be removed in a + future release of the GNU C Library. Users may port away from these hooks by + writing and preloading their own malloc interposition library. + Changes to build and runtime requirements: * On Linux, the shm_open, sem_open, and related functions now expect the |