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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2022-12-27 18:11:42 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-03-27 13:57:55 -0300 |
| commit | 88677348b4de73874ca7d5a47451f42880f65f07 (patch) | |
| tree | 9ebe22b88c2487331521737dfdf089f9e3e2439f /elf/dl-libc.c | |
| parent | e4d336f1ace7c7ca535f7f85485373752bc76ed5 (diff) | |
| download | glibc-88677348b4de73874ca7d5a47451f42880f65f07.tar.gz glibc-88677348b4de73874ca7d5a47451f42880f65f07.tar.xz glibc-88677348b4de73874ca7d5a47451f42880f65f07.zip | |
Move libc_freeres_ptrs and libc_subfreeres to hidden/weak functions
They are both used by __libc_freeres to free all library malloc allocated resources to help tooling like mtrace or valgrind with memory leak tracking. The current scheme uses assembly markers and linker script entries to consolidate the free routine function pointers in the RELRO segment and to be freed buffers in BSS. This patch changes it to use specific free functions for libc_freeres_ptrs buffers and call the function pointer array directly with call_function_static_weak. It allows the removal of both the internal macros and the linker script sections. Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'elf/dl-libc.c')
| -rw-r--r-- | elf/dl-libc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/elf/dl-libc.c b/elf/dl-libc.c index 7e71bfb534..c12e52f330 100644 --- a/elf/dl-libc.c +++ b/elf/dl-libc.c @@ -228,7 +228,7 @@ __libc_dlclose (void *map) } -static bool __libc_freeres_fn_section +static bool free_slotinfo (struct dtv_slotinfo_list **elemp) { size_t cnt; @@ -256,7 +256,8 @@ free_slotinfo (struct dtv_slotinfo_list **elemp) } -libc_freeres_fn (free_mem) +void +__dl_libc_freemem (void) { struct link_map *l; struct r_search_path_elem *d; |