commit	deec799746e92ab0487eca489499ade08a2610bf	[log] [tgz]
author	Caroline Tice <cmtice@google.com>	Mon Jan 08 10:25:12 2018 -0800
committer	Caroline Tice <cmtice@google.com>	Mon Jan 08 10:25:12 2018 -0800
tree	9a2c42ca86130fa98e61c5d7bfb7e890f501a066
parent	dca601e5d2b032ac5cca1df90ac56077ccf5d665 [diff]

[GCC] Commit retpoline patch code, for fixing security issues.

This applies the Intel GCC code patches, to allow compiling
with appropriate flags for mitigating the indirect branch variant of
the speculative execution security flaw.

Bug: None
Test: This is already in place in ChromeOS and has been tested on
the ChromeOS kernels.

Change-Id: Ideffb433b697f1fe7e4ca2c1eaa968160abfcc8b

gcc-4.9/gcc/config/i386/i386-opts.h[diff]
gcc-4.9/gcc/config/i386/i386-protos.h[diff]
gcc-4.9/gcc/config/i386/i386.c[diff]
gcc-4.9/gcc/config/i386/i386.h[diff]
gcc-4.9/gcc/config/i386/i386.md[diff]
gcc-4.9/gcc/config/i386/i386.opt[diff]
gcc-4.9/gcc/params.def[diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-1.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-2.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-3.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-4.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-5.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-6.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-7.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-force-no-patching.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-force-patching.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c[Deleted - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-1.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-10.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-11.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-12.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-13.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-14.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-15.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-16.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-2.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-3.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-4.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-5.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-6.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-7.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-8.c[Added - diff]
gcc-4.9/gcc/testsuite/gcc.target/i386/ret-thunk-9.c[Added - diff]

62 files changed

tree: 9a2c42ca86130fa98e61c5d7bfb7e890f501a066

README.md

Building GCC for Android

The following process is used to build the GCC that is used by both the Android platfrom and the NDK.

Both Linux and Windows toolchains are built on Linux machines. Windows host binaries are built with mingw. Building binaries for Mac OS X should be built using 10.8 to ensure compatibility with Android's minimum supported hosts.

Prerequisites

Android GCC Repository

Check out the branch gcc

repo init -u https://android.googlesource.com/platform/manifest -b gcc

# Googlers, use
repo init -u \
    persistent-https://android.git.corp.google.com/platform/manifest \
    -b gcc

Additional Linux Dependencies (available from apt):
- texinfo
- gcc-mingw32
- bison
- flex
- libtool
Mac OS X also requires Xcode.

Host/Target prebuilts

For Linux or Darwin:

# Additional options and toolchain names will be show with --help.
$ python build.py --toolchain TOOLCHAIN_NAME

For Windows, from Linux:

$ python build.py --system windows TOOLCHAIN_NAME