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authorAndrii Nakryiko <andriin@fb.com>2019-11-20 23:07:40 -0800
committerAlexei Starovoitov <ast@kernel.org>2019-11-24 16:58:45 -0800
commitffc88174cdcf5f51fb7f6298fe9203a36c904f1f (patch)
tree0776748fd7991bad8fd5ff1d8070d9d29035f8f7 /tools
parenta8fdaad5cfd250b9effcec942b3bf7bc5a6c8b17 (diff)
downloadlinux-ffc88174cdcf5f51fb7f6298fe9203a36c904f1f.tar.bz2
selftests/bpf: Ensure no DWARF relocations for BPF object files
Add -mattr=dwarfris attribute to llc to avoid having relocations against DWARF data. These relocations make it impossible to inspect DWARF contents: all strings are invalid. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191121070743.1309473-2-andriin@fb.com
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 4fe4aec0367c..085678d88ef8 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -161,7 +161,7 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
define CLANG_BPF_BUILD_RULE
($(CLANG) $3 -O2 -target bpf -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
- $(LLC) -march=bpf -mcpu=probe $4 -filetype=obj -o $2
+ $(LLC) -mattr=dwarfris -march=bpf -mcpu=probe $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
define CLANG_NOALU32_BPF_BUILD_RULE