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Diffstat (limited to 'test/dfsan/vararg.c')
-rw-r--r-- | test/dfsan/vararg.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/dfsan/vararg.c b/test/dfsan/vararg.c new file mode 100644 index 000000000000..2227ba715639 --- /dev/null +++ b/test/dfsan/vararg.c @@ -0,0 +1,24 @@ +// RUN: %clang_dfsan -m64 %s -o %t +// RUN: not %run %t 2>&1 | FileCheck %s +// RUN: %run %t foo +// RUN: %clang_dfsan -mllvm -dfsan-args-abi -m64 %s -o %t +// RUN: not %run %t 2>&1 | FileCheck %s +// RUN: %run %t foo + +#include <stdio.h> + +int do_nothing(const char *format, ...) { + return 0; +} + +int main(int argc, char **argv) { + int (*fp)(const char *, ...); + + if (argc > 1) + fp = do_nothing; + else + fp = printf; + + // CHECK: FATAL: DataFlowSanitizer: unsupported indirect call to vararg function printf + fp("hello %s\n", "world"); +} |