@@ -1709,6 +1709,7 @@ F: package/bridge-utils/
F: package/checkpolicy/
F: package/checksec/
F: package/cgroupfs-mount/
+F: package/compiler-rt/
F: package/crda/
F: package/cunit/
F: package/dacapo/
@@ -1856,6 +1856,7 @@ menu "Other"
source "package/clang/Config.in"
source "package/clapack/Config.in"
source "package/cmocka/Config.in"
+ source "package/compiler-rt/Config.in"
source "package/cppcms/Config.in"
source "package/cracklib/Config.in"
source "package/dawgdic/Config.in"
new file mode 100644
@@ -0,0 +1,14 @@
+config BR2_PACKAGE_COMPILER_RT
+ bool "compiler-rt"
+ depends on BR2_PACKAGE_LLVM
+ depends on BR2_TOOLCHAIN_USES_GLIBC # asan lib requires
+ help
+ A collection of runtime libraries primarily used by clang and
+ llvm to provide builtins, sanitizer runtimes, and profiling
+ at runtime.
+
+ https://compiler-rt.llvm.org/
+
+comment "compiler-rt requires llvm to be enabled and a glibc toolchain"
+ depends on !BR2_PACKAGE_LLVM
+ depends on !BR2_TOOLCHAIN_USES_GLIBC
new file mode 100644
@@ -0,0 +1,3 @@
+# Locally computed:
+sha256 def1fc00c764cd3abbba925c712ac38860a756a43b696b291f46fee09e453274 compiler-rt-11.1.0.src.tar.xz
+sha256 1a8f1058753f1ba890de984e48f0242a3a5c29a6a8f2ed9fd813f36985387e8d LICENSE.TXT
new file mode 100644
@@ -0,0 +1,37 @@
+################################################################################
+#
+# compiler-rt
+#
+################################################################################
+
+# Compiler-RT should be bumped together with LLVM and Clang as the run-time is
+# tied to the version of those tools
+COMPILER_RT_VERSION = 11.1.0
+COMPILER_RT_SOURCE = compiler-rt-$(COMPILER_RT_VERSION).src.tar.xz
+COMPILER_RT_SITE = https://github.com/llvm/llvm-project/releases/download/llvmorg-$(COMPILER_RT_VERSION)
+COMPILER_RT_LICENSE = NCSA MIT
+COMPILER_RT_LICENSE_FILES = LICENSE.TXT
+COMPILER_RT_DEPENDENCIES = host-clang llvm
+
+COMPILER_RT_INSTALL_STAGING = YES
+COMPILER_RT_INSTALL_TARGET = NO
+
+COMPILER_RT_CONF_OPTS=-DCOMPILER_RT_STANDALONE_BUILD=OFF \
+ -DCOMPILER_RT_STANDALONE_BUILD=ON \
+ -DCOMPILER_RT_DEFAULT_TARGET_TRIPLE=$(GNU_TARGET_NAME) \
+ -DLLVM_CONFIG_PATH=$(HOST_DIR)/usr/bin/llvm-config
+
+# The installation of the target runtime libraries defaults to DESTDIR, however
+# host-clang resources directory needs a link so Clang can find the runtime
+# libraries in the same location they would be if built as part of the Clang
+# build. The "resources" directory is loosely documented and seems to be
+# assumed, as compiler-rt is usually build at the same time as Clang and not
+# standalone.
+define COMPILER_RT_SETUP_RUNTIME_LIBS
+ mkdir -p $(HOST_DIR)/lib/clang/$(HOST_CLANG_VERSION)/lib
+ ln -sf ../../../../$(GNU_TARGET_NAME)/sysroot/usr/lib/linux $(HOST_DIR)/lib/clang/$(HOST_CLANG_VERSION)/lib/linux
+ ln -sf ../../../../$(GNU_TARGET_NAME)/sysroot/usr/share $(HOST_DIR)/lib/clang/$(HOST_CLANG_VERSION)/share
+endef
+COMPILER_RT_POST_INSTALL_STAGING_HOOKS += COMPILER_RT_SETUP_RUNTIME_LIBS
+
+$(eval $(cmake-package))
@@ -215,8 +215,17 @@ HOST_LLVM_CONF_OPTS += \
# We need to activate LLVM_INCLUDE_TOOLS, otherwise it does not generate
# libLLVM.so
LLVM_CONF_OPTS += \
- -DLLVM_INCLUDE_TOOLS=ON \
+ -DLLVM_INCLUDE_TOOLS=ON
+
+# The llvm-symbolizer binary is used by the Compiler-RT Fuzzer
+# and AddressSanitizer tools for stack traces.
+ifeq ($(BR2_PACKAGE_COMPILER_RT),y)
+LLVM_CONF_OPTS += \
+ -DLLVM_BUILD_TOOLS=ON
+else
+LLVM_CONF_OPTS += \
-DLLVM_BUILD_TOOLS=OFF
+endif
ifeq ($(BR2_PACKAGE_LLVM_RTTI),y)
HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
This patch adds support for the compiler-rt (CLANG runtime) library. It builds a set of static libraries and installs them into the CLANG/LLVM toolchain resource folder. These libraries can then be used by developers in the SDK for building target applications for analysis. What is fuzzing and why libfuzzer? https://www.moritz.systems/blog/an-introduction-to-llvm-libfuzzer/ The compiler-rt fuzzer and address sanitizer tools require additional LLVM binary tools installed to allow stack trace decoding actively during executable analysis. This patch conditionally enables these tools. https://github.com/google/sanitizers/wiki/AddressSanitizerCallStack Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com> Cc: Romain Naour <romain.naour@smile.fr> Cc: Ricardo Martincoski <ricardo.martincoski@gmail.com> Cc: Valentin Korenblit <valentinkorenblit@gmail.com> Cc: Michael Drake <michael.drake@codethink.co.uk> --- Changes v1 -> v2 [Romain - Removed unnecessary host-cmake dependency v2 -> v3 [Romain - Update to use COMPILER_RT_INSTALL_PATH for library install [Ricardo - Fixed check-package extra line - Spelling in commit message v3 -> v4 [Valentin - Pointed out that non-glibc libraries won't build. Further investigation shows that the lib asan support in compiler-rt doesn't have the libc checks yet to support multiple libraries. (https://patchwork.ozlabs.org/patch/339938/ was the best example I could find and it doesn't look like anything has changed in the recent codebase) v4 -> v5 [Thomas P - Revisited staging install step and found a cleaner way to use the default and then a hook to setup the runtime library path v6 - Bumped to 7.0.1 to match current LLVM/Clang version v7 - Rebased on master for 8.0 LLVM/Clang version - Added comment about bumping verions of LLVM/Clang and Compiler-rt together [Romain - Disabled test cases (-DCOMPILER_RT_INCLUDE_TESTS=OFF) v8 - Rebased and updated version to 9.x to match llvm/clang [Romain - Squashed "[v7,1/5]package/llvm: install target binary/debug tools" to be included in this patch [Michael D - compiler-rt symlink creation to include shared folder such that control flow lists work v9 - Rebased post 2020.05 v10 - Switched compiler-rt site to point towards new github project - Updated compiler-rt version to 11.0.0 - Tested against master[8640e8ffde3f61c5838] using support/testing/run-tests -o runtest -k \ tests.package.test_clang.TestClangCompilerRT v11 - Updated compiler-rt version to 11.1.0 --- DEVELOPERS | 1 + package/Config.in | 1 + package/compiler-rt/Config.in | 14 +++++++++++ package/compiler-rt/compiler-rt.hash | 3 +++ package/compiler-rt/compiler-rt.mk | 37 ++++++++++++++++++++++++++++ package/llvm/llvm.mk | 11 ++++++++- 6 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 package/compiler-rt/Config.in create mode 100644 package/compiler-rt/compiler-rt.hash create mode 100644 package/compiler-rt/compiler-rt.mk