platform_bionic/libc/arch-arm/bionic/exidx_dynamic.c
Dimitry Ivanov 6d142bcf34 Move __aeabi* symbols to LIBC_N version
We had these symbols incorrectly versioned as LIBC_PRIVATE
in M release. This change moves __aeabi* symbols from LIBC
to LIBC_N and adds __gnu_Unwind_Find_exidx to the list

Bug: https://github.com/android-ndk/ndk/issues/1
Change-Id: I0b353012adeacb00ae29ea10c63b9d1cf1cadbe7
2016-01-08 10:13:16 -08:00

49 lines
2.2 KiB
C

/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <link.h>
/* For a given PC, find the .so that it belongs to.
* Returns the base address of the .ARM.exidx section
* for that .so, and the number of 8-byte entries
* in that section (via *pcount).
*
* libgcc declares __gnu_Unwind_Find_exidx() as a weak symbol, with
* the expectation that libc will define it and call through to
* a differently-named function in the dynamic linker.
*/
_Unwind_Ptr __gnu_Unwind_Find_exidx_impl(_Unwind_Ptr pc, int *pcount) {
return dl_unwind_find_exidx(pc, pcount);
}
_Unwind_Ptr __gnu_Unwind_Find_exidx_impl2(_Unwind_Ptr pc, int *pcount) {
return dl_unwind_find_exidx(pc, pcount);
}
__asm__(".symver __gnu_Unwind_Find_exidx_impl,__gnu_Unwind_Find_exidx@LIBC_PRIVATE");
__asm__(".symver __gnu_Unwind_Find_exidx_impl2,__gnu_Unwind_Find_exidx@@LIBC_N");