[Buildroot] [PATCH v3 2/6] package/llvm: install target binary/debug tools

Matt Weber matthew.weber at rockwellcollins.com
Mon Nov 19 02:37:43 UTC 2018


The compiler-rt fuzzer and address sanitizer tools require additional
LLVM binary tools installed to allow stack trace decoding actively during
executable analysis.

https://github.com/google/sanitizers/wiki/AddressSanitizerCallStack

Signed-off-by: Matthew Weber <matthew.weber at rockwellcollins.com>
Reviewed-by: Romain Naour <romain.naour at smile.fr>
---
Changes
v1 -> v3
 - None
---
 package/llvm/llvm.mk | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/package/llvm/llvm.mk b/package/llvm/llvm.mk
index 1f9bd44..79477f0 100644
--- a/package/llvm/llvm.mk
+++ b/package/llvm/llvm.mk
@@ -197,8 +197,17 @@ 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
 
 # Compiler-rt not in the source tree.
 # llvm runtime libraries are not in the source tree.
-- 
1.9.1




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