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hardening: remove pointless ARM __get_pc() function

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Useful if you're trying to defeat ASLR, otherwise not
so much ...

Change-Id: I17ebb50bb490a3967db9c3038f049adafe2b8ea7
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@gmail.com>
This commit is contained in:
Ard Biesheuvel 2012-08-22 10:37:08 +02:00
parent 1bd035cf11
commit 404e28ff8c
2 changed files with 0 additions and 35 deletions
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1
libc/Android.mk
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@ -362,7 +362,6 @@ libc_static_common_src_files := \
# =========================================================
ifeq ($(TARGET_ARCH),arm)
libc_common_src_files += \
arch-arm/bionic/__get_pc.S \
arch-arm/bionic/__get_sp.S \
arch-arm/bionic/_exit_with_stack_teardown.S \
arch-arm/bionic/_setjmp.S \

34
libc/arch-arm/bionic/__get_pc.S
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@ -1,34 +0,0 @@
/*
* 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.
*/
.global __get_pc
.type __get_pc, %function
__get_pc:
mov r0, pc
bx lr