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authorAdhemerval Zanella Netto <adhemerval.zanella@linaro.org>2022-12-27 18:11:42 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2023-03-27 13:57:55 -0300
commit88677348b4de73874ca7d5a47451f42880f65f07 (patch)
tree9ebe22b88c2487331521737dfdf089f9e3e2439f /libio/libioP.h
parente4d336f1ace7c7ca535f7f85485373752bc76ed5 (diff)
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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 'libio/libioP.h')
-rw-r--r--libio/libioP.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/libio/libioP.h b/libio/libioP.h
index 38507388fd..80941b763f 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -491,7 +491,6 @@ libc_hidden_proto (_IO_wdo_write)
 extern int _IO_flush_all_lockp (int);
 extern int _IO_flush_all (void);
 libc_hidden_proto (_IO_flush_all)
-extern int _IO_cleanup (void);
 extern void _IO_flush_all_linebuffered (void);
 libc_hidden_proto (_IO_flush_all_linebuffered)
 extern int _IO_new_fgetpos (FILE *, __fpos_t *);