25bf29bbad
Leaving these unimplemented causes linker to have 2 weak undefined symbols which in turn results in 3 unwanted relocations for arm arch. Implementing them removes unwanted relocations from resulted dynamic object Test: make && readelf --dyn-sym linker Test: linker-unit-tests && bionic-unit-tests --gtest_filter=dl*:Dl* Test: flash and boot angler Change-Id: I10120271936c770659239898aaf852d31c5483c2
46 lines
1.9 KiB
C
46 lines
1.9 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>
|
|
|
|
/* Find the .ARM.exidx section (which in the case of a static executable
|
|
* can be identified through its start and end symbols), and return its
|
|
* beginning and numbe of entries to the caller. Note that for static
|
|
* executables we do not need to use the value of the PC to find the
|
|
* EXIDX section.
|
|
*/
|
|
|
|
extern unsigned __exidx_end;
|
|
extern unsigned __exidx_start;
|
|
|
|
_Unwind_Ptr __gnu_Unwind_Find_exidx(_Unwind_Ptr pc __unused,
|
|
int* pcount)
|
|
{
|
|
*pcount = (__exidx_end-__exidx_start)/8;
|
|
return __exidx_start;
|
|
}
|