Commit Graph

171 Commits

Author SHA1 Message Date
Peter Collingbourne b64d0b1e6d Protection against stack-based memory corruption errors using SafeStack: compiler-rt runtime support library
This patch adds runtime support for the Safe Stack protection to compiler-rt
(see http://reviews.llvm.org/D6094 for the detailed description of the
Safe Stack).

This patch is our implementation of the safe stack on top of compiler-rt. The
patch adds basic runtime support for the safe stack to compiler-rt that
manages unsafe stack allocation/deallocation for each thread.

Original patch by Volodymyr Kuznetsov and others at the Dependable Systems
Lab at EPFL; updates and upstreaming by myself.

Differential Revision: http://reviews.llvm.org/D6096

llvm-svn: 239763
2015-06-15 21:08:47 +00:00
Chris Bieneman 6bd006f31a [CMake] Cleanup add_compiler_rt_object_library to be platform-agnostic
Summary:
This change takes darwin-specific goop that was scattered around CMakeLists files and spread between add_compiler_rt_object_library and add_compiler_rt_darwin_object_library and moves it all under add_compiler_rt_object_library.

The goal of this is to try to push platform handling as low in the utility functions as possible.

Reviewers: rnk, samsonov

Reviewed By: rnk, samsonov

Subscribers: rnk, rsmith, llvm-commits

Differential Revision: http://reviews.llvm.org/D10250

llvm-svn: 239498
2015-06-10 23:55:07 +00:00
Reid Kleckner 868a6c3023 Revert some of "Silence some CMake 3.3 dev warnings in compiler-rt"
This reverts part of r237808.

The CMP0057 warnings came from an old development build of CMake that
nobody else has. We don't need the cruft.

llvm-svn: 237819
2015-05-20 18:39:59 +00:00
Reid Kleckner aa9029691f Silence some CMake 3.3 dev warnings in compiler-rt
Fix a trivial instance of CMP0054 that came up on llvmdev.

The other warnings were CMP0057, which is about using the same file as a
MAIN_DEPENDENCY multiple times.  The old behavior hasn't been a problem
yet, so I silenced the warning and filed PR23595 to document the issue
if someone cares.

llvm-svn: 237808
2015-05-20 16:56:17 +00:00
Dmitry Vyukov 4bf08947a1 [sanitizer][MIPS] Fix warnings on MIPS
Fixed:
- stack frame size warning.
- msse3 flag unused warning.
- GoTsanRuntimeCheck dependency warning reported by cmake.

Change by Sagar Thakur
Reviewed in http://reviews.llvm.org/D8963

llvm-svn: 234579
2015-04-10 09:45:22 +00:00
Alexey Samsonov 09dce3b7e5 [UBSan] Embed UBSan into ASan runtime (compiler-rt part).
Summary:
Change the way we use ASan and UBSan together. Instead of keeping two
separate runtimes (libclang_rt.asan and libclang_rt.ubsan), embed UBSan
into ASan and get rid of libclang_rt.ubsan. If UBSan is not supported on
a platform, all UBSan sources are just compiled into dummy empty object
files. UBSan initialization code (e.g. flag parsing) is directly called
from ASan initialization, so we are able to enforce correct
initialization order.

This mirrors the approach we already use for ASan+LSan. This change
doesn't modify the way we use standalone UBSan.

Test Plan: regression test suite

Reviewers: kubabrecka, zaks.anna, rsmith, kcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8646

llvm-svn: 233861
2015-04-01 22:42:36 +00:00
Kuba Brecka b47f4ef508 On OS X, explicitly use libc++
For OS X builds, both Make and CMake, let's be very explicit about using
libc++ and libc++abi with:

1) -stdlib=libc++ in CFLAGS and LDFLAGS for all platforms
2) -lc++ in LDFLAGS for all platforms
3) switch from -undefined dynamic_lookup to -lc++abi for UBSan in
   Makefile-based builds

Reviewed at http://reviews.llvm.org/D8617

llvm-svn: 233215
2015-03-25 21:07:20 +00:00
Alexander Potapenko f7d32ccc00 [ASan] Do not link ASan OSX runtime with -lc++abi (which was added in r233036)
This should fix the OSX Jenkins build at http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/

llvm-svn: 233071
2015-03-24 13:10:55 +00:00
Alexey Samsonov c4eb977b0f [UBSan] Use shared library for UBSan on OS X (compiler-rt part).
Summary:
Switch to shared library for UBSan. Add support for building
UBSan on OSX and iossim by cargo-culting ASan build rules.

Test Plan: regression test suite

Reviewers: zaks.anna, kubabrecka

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8473

llvm-svn: 233036
2015-03-23 23:14:16 +00:00
Saleem Abdulrasool 06609c64d7 build: remove the stub linux SDK
The SDK is insufficient to really build much.  The builtins can be built
standalone now which is what the stub SDK was meant to permit.  Remove the
unnecessary files.

llvm-svn: 230869
2015-02-28 20:30:11 +00:00
Kuba Brecka ca48abc9b3 Fix OS X build failure with Command Line Tools and without full Xcode installation
On OS X, if you don't have a full Xcode installation, but just the Command Line Tools package, xcrun and xcodebuild don't return a valid SDK root path. In these cases, let's use "/" as the SDK root (which is where the headers and libraries are installed).

Reviewed at http://reviews.llvm.org/D7641

llvm-svn: 230847
2015-02-28 12:25:10 +00:00
Kuba Brecka 0f776b0905 [compiler-rt] OS X: Update the CMake and Make builds to explicitely use libc++, mmacosx-version-min and SDKs
In both CMake and Makefiles, we are inconsistent about the use of libstdc++ vs. libc++, SDKs and minimum deployment targets for OS X. Let's fix the detection of SDKs, and let's explicitely set that we link against libc++ and mmacosx-version-min is 10.7.

llvm-svn: 227509
2015-01-29 23:19:26 +00:00
Alexey Samsonov 807f1b539c [CMake] Get rid of TARGET_64_BIT_CFLAGS: explicitly list required flags for each architecture.
llvm-svn: 227496
2015-01-29 21:32:34 +00:00
Evgeniy Stepanov 8c9a0708a0 [sanitizer] Restore -fno-lto accidentally removed in r226169.
llvm-svn: 226177
2015-01-15 16:31:22 +00:00
Evgeniy Stepanov f294d5b829 [sanitizer] Flag parser rewrite.
The new parser is a lot stricter about syntax, reports unrecognized
flags, and will make it easier to implemented some of the planned features.

llvm-svn: 226169
2015-01-15 15:13:43 +00:00
Saleem Abdulrasool a7452e434b builtins: avoid duplicating unwind declarations
Use unwind.h to get the declarations for unwinding interfaces.  This header is
already provided by clang and gcc, so this adds no additional dependencies for
building the builtins library.  It avoids the duplication which may drift over
time though.

llvm-svn: 225990
2015-01-14 15:55:17 +00:00
Alexey Samsonov ea04032144 Use -DSANITIZER_DEBUG=1 if COMPILER_RT_DEBUG=ON, now that PR22083 is fixed.
llvm-svn: 225293
2015-01-06 20:25:34 +00:00
Alexey Samsonov df3aeb8e71 Remove TSAN_DEBUG in favor of SANITIZER_DEBUG.
llvm-svn: 225111
2015-01-03 04:29:12 +00:00
Rafael Espindola 0dfd240068 Avoid building compiler-rt with LTO.
During a LTO we still need to build a compiler_rt with regular object files
in the .a.

llvm-svn: 225049
2014-12-31 18:20:52 +00:00
Chandler Carruth 11fb7a49ae [cmake/multilib] Support multilib libdir suffixes by applying the
LLVM_LIBDIR_SUFFIX variable to one place in the cmake file.

This is all that I had to do to get everything from compiler-rt working
for me, but there may be more work required if folks are relying on more
parts of compiler-rt. Notably, I'm mostly using it for the sanitizers.

llvm-svn: 224928
2014-12-29 12:26:30 +00:00
Kuba Brecka 5238deb2ff Change the CMake build to generate full debugging info when COMPILER_RT_DEBUG=ON
The compiler-rt CMake build currently uses -gline-tables-only for all builds. While this makes the debugger correctly map source files, debugging of the runtime libraries in general is pretty tough, because you don't see any local variables, parameters, etc. Let's allow emitting full debugging info by setting COMPILER_RT_DEBUG=ON.

Reviewed at http://reviews.llvm.org/D6764

llvm-svn: 224749
2014-12-23 01:52:53 +00:00
Alexey Samsonov 969902b43b [ASan] Always build shared ASan runtime on Linux.
This commit changes the strategy for building shared ASan runtime
and the way we test it:
  - COMPILER_RT_BUILD_SHARED_ASAN CMake option is removed. We now
    always build shared ASan runtime (it is the default on Android,
    Windows and Mac, and not the default on Linux and FreeBSD).
  - Platforms, which use static runtime by default now have
    "check-asan-dynamic" testsuite. This testsuite contains instrumented
    unit tests, and ASan lit tests, and runs them with shared ASan
    runtime. This testsuite is *not* a part of "check-asan" and
    *not* a part of "check-all", as adding 1000 more test cases, which
    duplicate existing ones is costly. However, you're welcome to
    add this command to your buildbot.

llvm-svn: 224470
2014-12-17 23:14:01 +00:00
Evgeniy Stepanov f34bad98af [asan] Remove the local copy of Android ucontext.h.
This header is present in the r10c release of the NDK.

llvm-svn: 222915
2014-11-28 10:37:44 +00:00
Alexey Samsonov 829da45631 [CMake] Detect if -Wfoo is supported instead of -Wno-foo, as GCC occasionally silently discards unknown -Wno-foo flags.
llvm-svn: 221925
2014-11-13 21:19:53 +00:00
Bob Wilson 8aa9ab104c Build Darwin libclang_rt libraries against real SDKs.
The minimal fake SDK was very useful in allowing us to build for all
Darwin platforms without needing access to the real SDKs, but it did
not support building any of the sanitizer runtimes. It's important to
fix that. As a consequence, if you don't have the iOS SDKs installed,
we will now skip building the iOS-specific libclang_rt libraries.
rdar://problem/18825276

llvm-svn: 221621
2014-11-10 19:38:15 +00:00
Aaron Ballman 1d1f232041 Disabling some MSVC warnings that are of questionable value. Note, these are disabled by default in LLVM as well, so there is precedence.
C4146: 'unary minus operator applied to unsigned type, result still unsigned'
C4291: ''declaration' : no matching operator delete found; memory will not be freed if initialization throws an exception'
C4800: ''type' : forcing value to bool 'true' or 'false' (performance warning)'
llvm-svn: 220507
2014-10-23 20:39:58 +00:00
Aaron Ballman 7c7be2fa42 Change all of the build flags to switch /MD and /MDd into /MT, instead of just some of the targets. Fixes PR21241.
llvm-svn: 220506
2014-10-23 20:24:00 +00:00
Kuba Brecka 14c0c5901d [compiler-rt] compiler-rt's CMake append_if function clashes with LLVM's, let's rename it to append_list_if
Doing s/append_if/append_list_if/, no functional change.

http://reviews.llvm.org/D5739

llvm-svn: 219860
2014-10-15 22:47:54 +00:00
Alexey Samsonov 76c875579a [CMake] Cleanup CMake rules after r219302. NFC.
llvm-svn: 219825
2014-10-15 18:23:57 +00:00
Alexander Potapenko ff7456dd34 [ASan] Bump the minimum OSX version required to run ASan to 10.7.
llvm-svn: 219302
2014-10-08 12:41:11 +00:00
Evgeniy Stepanov 9e922e7d24 [sanitizer] Android build cleanup.
* Detect Android toolchain target arch and set correct runtime library name.
* Merged a lot of Android and non-Android code paths.
* Android is only supported in standalone build of compiler-rt now.
* Linking lsan-common in ASan-Android (makes lsan annotations work).
* Relying on -fsanitize=address linker flag when building tests (again,
  unification with non-Android path).
* Runtime library moved from lib/asan to lib/linux.

llvm-svn: 218605
2014-09-29 13:18:55 +00:00
Timur Iskhodzhanov 6add9fe958 [ASan/Win] Enable building the MD runtime by default
llvm-svn: 216534
2014-08-27 10:17:20 +00:00
Timur Iskhodzhanov 47030475a0 [ASan/Win] Disable warning C4391: incorrect return type for intrinsic function
This warning makes it a bit hard to define strlen and wcslen interceptors in an elegant yet portable way

llvm-svn: 216450
2014-08-26 12:33:00 +00:00
Hans Wennborg a03feadeb2 Fix the CMake build when setting MACOSX_DEPLOYMENT_TARGET
If we don't reset CMAKE_OSX_DEPLOYMENT_TARGET, it will end up in
CFLAGS together with the -mmacosx-version-min that we set,
and the compiler errors about the conflict.

llvm-svn: 215468
2014-08-12 20:03:33 +00:00
Timur Iskhodzhanov de1718d355 [ASan/Win] Fix PR18987: warning about overriding '/MD' with '/MT'
llvm-svn: 215435
2014-08-12 09:44:56 +00:00
Alexey Samsonov 68b9e74592 [CMake] Determine which compiler-rt libraries are supported on
a given platform in a top-level CMakeLists.txt to use it both
in lib/ and in test/ subdirectories. Move architecture/platform
checks to config-ix.

llvm-svn: 215247
2014-08-08 22:01:20 +00:00
Alexey Samsonov 4462ec6c02 Exclude ASM from CompilerRT languages as an attempt to fix CMake failure in standalone mode
llvm-svn: 214130
2014-07-28 22:04:19 +00:00
Saleem Abdulrasool 7618240aa9 builtins: re-enable building assembly sources
Re-apply SVN r213684 which was reverted in SVN r213724 since it broke the
build bots.  Add a tweak to enable inclusion of the assembly sources in
standalone build as well.

Original commit message:

This patch address the PR20360. The CMake assembler build system
ignores the .S assembly files in builtins library build. This patch
fixes the issue.

llvm-svn: 214013
2014-07-26 04:04:02 +00:00
Daniel Sanders 4dc8a78b04 [asan] adding support of 32-bit address sanitizer for MIPS
Summary: The patch supports both the clang cross-compiler and native compiler

Patch by Kumar Sukhani <Kumar.Sukhani@imgtec.com>

Test Plan:
Kumar had the following asan test results when compiled on a MIPS board:

  Expected Passes    : 96
  Expected Failures  : 2
  Unsupported Tests  : 84
  Unexpected Passes  : 4
  Unexpected Failures: 19

The list of unexpected failures can be found in the review.

Reviewers: kcc, petarj, dsanders

Reviewed By: kcc

Subscribers: farazs, kcc, llvm-commits

Differential Revision: http://reviews.llvm.org/D4208

llvm-svn: 211587
2014-06-24 12:08:18 +00:00
Greg Fitzgerald 796fba4cd9 Fix Android build after r210053
llvm-svn: 210069
2014-06-03 04:29:46 +00:00
Greg Fitzgerald 0f7f731966 Cleanup Android build and provide better diagnostics
No longer need to set ANDROID if COMPILER_RT_TEST_TARGET_TRIPLE is
arm-linux-androideabi.

No need to set ANDROID_COMMON_FLAGS.  These flags are already in
CMAKE_CXX_FLAGS which are used in try_compile().

llvm-svn: 210053
2014-06-02 23:11:24 +00:00
Greg Fitzgerald 11b49c3818 light up sanitizers for ARM, take 2
Differential Revision: http://reviews.llvm.org/D3794

llvm-svn: 209856
2014-05-29 22:38:13 +00:00
Greg Fitzgerald c1146ec5ba Revert "light up sanitizers for ARM"
This commit broke the Windows build, where CMAKE_C_COMPILER can
compile and link with -march=armv7-a but the just-built-clang
cannot.

llvm-svn: 209851
2014-05-29 21:33:36 +00:00
Greg Fitzgerald 32685ec5fd light up sanitizers for ARM
You can expect the sanitizers to be built under any of the following conditions:

1) CMAKE_C_COMPILER is GCC built to cross-compile to ARM
2) CMAKE_C_COMPILER is Clang built to cross-compile to ARM (ARM is default target)
3) CMAKE_C_COMPILER is Clang and CMAKE_C_FLAGS contains -target and --sysroot

Differential Revision: http://reviews.llvm.org/D3794

llvm-svn: 209835
2014-05-29 19:01:32 +00:00
Timur Iskhodzhanov 82ee0433da [ASan/Win] Use clang rather than clang-cl by default for lit tests. Make Windows-only tests explicitly use clang-cl.
Reviewed at http://reviews.llvm.org/D3893

llvm-svn: 209719
2014-05-28 08:38:13 +00:00
Greg Fitzgerald 1733b5e263 XFAIL ptrace test on arm
The patch adds better target_triple and target_arch defaults for lit tests,
which allows us to XFAIL tests based on architecture.

Was:
  target_triple = LLVM_DEFAULT_TARGET_TRIPLE
  target_arch = HOST_ARCH

Now:
  target_triple = COMPILER_RT_TEST_TARGET_TRIPLE
                , otherwise LLVM_DEFAULT_TARGET_TRIPLE
  target_arch = first item in COMPILER_RT_TEST_TARGET_TRIPLE

Differential Revision: http://reviews.llvm.org/D3855

llvm-svn: 209256
2014-05-20 23:31:26 +00:00
Timur Iskhodzhanov 2bdca20069 [ASan tests] Add the first Windows-only lit test
Reviewed at http://reviews.llvm.org/D3767

llvm-svn: 208802
2014-05-14 19:10:43 +00:00
Greg Fitzgerald 07c88a16e8 Enable CAN_EXECUTE_TESTS if an EMULATOR is provided
llvm-svn: 208745
2014-05-14 00:36:15 +00:00
Timur Iskhodzhanov b9bd76b85d Enable sanitizer tests (check-sanitizer, check-asan) on Windows
llvm-svn: 208701
2014-05-13 14:25:49 +00:00
Alexey Samsonov 53363b53db [CMake] Fix standalone build after r208526
llvm-svn: 208629
2014-05-12 20:48:29 +00:00