7e3c538af1
This adds a minimalistic implementation of getcontext() for Android/ARM and Android/x86. The provided code is in assembly and only implements the bare minimum required by Breakpad to get the current processor state. Note that: - The FPU state is not saved to the ucontext_t on ARM. (that's actually the main difference with a normal getcontext() implementation). This is normal. On Linux/ARM, such state must be obtained with PTRACE_GETVFPREGS instead. This will be implemented in a future patch. - On x86, only the 'regular' FPU state is saved, to mimic the GLibc/i386 implementation. The state of SSE/SSE2/etc registers is not part of the upstream getcontext() implementation. Review URL: https://breakpad.appspot.com/444002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1024 4c0a9323-5329-0410-9bdc-e9ce6186880e
151 lines
5.2 KiB
Text
151 lines
5.2 KiB
Text
# Copyright (c) 2006, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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AC_PREREQ(2.57)
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AC_INIT(breakpad, 0.1, google-breakpad-dev@googlegroups.com)
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dnl Sanity check: the argument is just a file that should exist.
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AC_CONFIG_SRCDIR(README)
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AC_CONFIG_AUX_DIR(autotools)
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AC_CONFIG_MACRO_DIR([m4])
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AC_CANONICAL_HOST
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AM_INIT_AUTOMAKE(subdir-objects tar-ustar 1.11.1)
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AM_CONFIG_HEADER(src/config.h)
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AM_PROG_AS
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_CPP
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AC_PROG_CXX
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AC_PROG_RANLIB
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AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
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AC_HEADER_STDC
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m4_include(m4/ax_pthread.m4)
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AX_PTHREAD
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AC_CHECK_HEADERS([a.out.h])
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# Only build Linux client libs when compiling for Linux
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case $host in
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*-*-linux* | *-android* )
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LINUX_HOST=true
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;;
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esac
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AM_CONDITIONAL(LINUX_HOST, test x$LINUX_HOST = xtrue)
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# Only use Android support headers when compiling for Android
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case $host in
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*-android*)
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ANDROID_HOST=true
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;;
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esac
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AM_CONDITIONAL(ANDROID_HOST, test x$ANDROID_HOST = xtrue)
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AC_ARG_ENABLE(m32,
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AS_HELP_STRING([--enable-m32],
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[Compile/build with -m32]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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CFLAGS="${CFLAGS} -m32"
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CXXFLAGS="${CXXFLAGS} -m32"
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usem32=true
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;;
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no)
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usem32=false
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --enable-m32)
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;;
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esac],
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[usem32=false])
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AC_ARG_ENABLE(processor,
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AS_HELP_STRING([--disable-processor],
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[Don't build processor library]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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disable_processor=false
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;;
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no)
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disable_processor=true
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --disable-processor)
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;;
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esac],
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[disable_processor=false])
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AM_CONDITIONAL(DISABLE_PROCESSOR, test x$disable_processor = xtrue)
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AC_ARG_ENABLE(tools,
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AS_HELP_STRING([--disable-tools],
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[Don't build tool binaries]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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disable_tools=false
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;;
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no)
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disable_tools=true
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --disable-tools)
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;;
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esac],
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[disable_tools=false])
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AM_CONDITIONAL(DISABLE_TOOLS, test x$disable_tools = xtrue)
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if test x$LINUX_HOST = xfalse -a x$disable_processor = xtrue -a x$disable_tools = xtrue; then
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AC_MSG_ERROR([--disable-processor and --disable-tools were specified, and not building for Linux. Nothing to build!])
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fi
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AC_ARG_ENABLE(selftest,
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AS_HELP_STRING([--enable-selftest],
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[Run extra tests with "make check" ]
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[(may conflict with optimizations) ]
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[(default is no)]),
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[case "${enableval}" in
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yes)
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selftest=true
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;;
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no)
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selftest=false
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;;
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*)
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AC_MSG_ERROR(bad value ${enableval} for --enable-selftest)
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;;
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esac],
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[selftest=false])
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AM_CONDITIONAL(SELFTEST, test x$selftest = xtrue)
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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