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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 /nscd | |
| parent | e4d336f1ace7c7ca535f7f85485373752bc76ed5 (diff) | |
| download | glibc-88677348b4de73874ca7d5a47451f42880f65f07.tar.gz | |
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 'nscd')
| -rw-r--r-- | nscd/nscd_getgr_r.c | 3 | ||||
| -rw-r--r-- | nscd/nscd_gethst_r.c | 3 | ||||
| -rw-r--r-- | nscd/nscd_getpw_r.c | 3 | ||||
| -rw-r--r-- | nscd/nscd_getserv_r.c | 3 | ||||
| -rw-r--r-- | nscd/nscd_netgroup.c | 3 |
5 files changed, 10 insertions, 5 deletions
diff --git a/nscd/nscd_getgr_r.c b/nscd/nscd_getgr_r.c index f30d99973d..07e894019a 100644 --- a/nscd/nscd_getgr_r.c +++ b/nscd/nscd_getgr_r.c @@ -68,7 +68,8 @@ libc_locked_map_ptr (,__gr_map_handle) attribute_hidden; /* Note that we only free the structure if necessary. The memory mapping is not removed since it is not visible to the malloc handling. */ -libc_freeres_fn (gr_map_free) +void +__nscd_gr_map_freemem (void) { if (__gr_map_handle.mapped != NO_MAPPING) { diff --git a/nscd/nscd_gethst_r.c b/nscd/nscd_gethst_r.c index ab9c9d311f..c6a6247f73 100644 --- a/nscd/nscd_gethst_r.c +++ b/nscd/nscd_gethst_r.c @@ -81,7 +81,8 @@ libc_locked_map_ptr (, __hst_map_handle) attribute_hidden; /* Note that we only free the structure if necessary. The memory mapping is not removed since it is not visible to the malloc handling. */ -libc_freeres_fn (hst_map_free) +void +__nscd_hst_map_freemem (void) { if (__hst_map_handle.mapped != NO_MAPPING) { diff --git a/nscd/nscd_getpw_r.c b/nscd/nscd_getpw_r.c index 0cae7ad61c..17d9753f8a 100644 --- a/nscd/nscd_getpw_r.c +++ b/nscd/nscd_getpw_r.c @@ -67,7 +67,8 @@ libc_locked_map_ptr (static, map_handle); /* Note that we only free the structure if necessary. The memory mapping is not removed since it is not visible to the malloc handling. */ -libc_freeres_fn (pw_map_free) +void +__nscd_pw_map_freemem (void) { if (map_handle.mapped != NO_MAPPING) { diff --git a/nscd/nscd_getserv_r.c b/nscd/nscd_getserv_r.c index 6969fcb739..1458c6ca22 100644 --- a/nscd/nscd_getserv_r.c +++ b/nscd/nscd_getserv_r.c @@ -62,7 +62,8 @@ libc_locked_map_ptr (, __serv_map_handle) attribute_hidden; /* Note that we only free the structure if necessary. The memory mapping is not removed since it is not visible to the malloc handling. */ -libc_freeres_fn (serv_map_free) +void +__nscd_serv_map_freemem (void) { if (__serv_map_handle.mapped != NO_MAPPING) { diff --git a/nscd/nscd_netgroup.c b/nscd/nscd_netgroup.c index 29cd3a5116..6f4c383ace 100644 --- a/nscd/nscd_netgroup.c +++ b/nscd/nscd_netgroup.c @@ -31,7 +31,8 @@ libc_locked_map_ptr (static, map_handle); /* Note that we only free the structure if necessary. The memory mapping is not removed since it is not visible to the malloc handling. */ -libc_freeres_fn (pw_map_free) +void +__nscd_group_map_freemem (void) { if (map_handle.mapped != NO_MAPPING) { |