================
@@ -10,6 +10,8 @@
# Setup default compiler flags used with -fsanitize=dataflow option.
clang_dfsan_cflags = ["-fsanitize=dataflow"] + [config.target_cflags]
+if config.target_arch == "s390x":
+ clang_dfsan_cflags.append("-mbackchain")
----------------
browneee wrote:
nit: Please phrase it a bit more explicitly:
# s390x arch needs -mbackchain to print stack backtrace of origin.
https://github.com/llvm/llvm-project/pull/168991
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