47373f94a4
We hit some undefined symbol errors to 128-bit floating point functions when linking this test. ld.lld: error: undefined symbol: __multf3 >>> referenced by strtof128_l.o:(round_and_return) in archive /usr/lib/x86_64-linux-gnu/libc.a >>> referenced by strtof128_l.o:(round_and_return) in archive /usr/lib/x86_64-linux-gnu/libc.a >>> referenced by strtof128_l.o:(round_and_return) in archive /usr/lib/x86_64-linux-gnu/libc.a >>> referenced 4 more times >>> did you mean: __muldf3 >>> defined in: /usr/local/google/home/leonardchan/llvm-monorepo/llvm-build-1-master-fuchsia-toolchain/lib/clang/14.0.0/lib/x86_64-unknown-linux-gnu/libclang_rt.builtins.a Host libc expects these to be defined, and compiler-rt will only define these for certain platforms (see definition for CRT_LDBL_128BIT). Since we likely can't do anything about the host libc, we can at least restrict the test to check that these functions are supported. Differential Revision: https://reviews.llvm.org/D109709
15 lines
450 B
C++
15 lines
450 B
C++
// REQUIRES: ubsan-standalone
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// REQUIRES: arch=x86_64
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// REQUIRES: librt_has_multf3
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// RUN: %clangxx -fsanitize=bool -static %s -o %t && UBSAN_OPTIONS=handle_segv=0:handle_sigbus=0:handle_sigfpe=0 %run %t 2>&1 | FileCheck %s
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#include <signal.h>
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#include <stdio.h>
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int main() {
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struct sigaction old_action;
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sigaction(SIGINT, nullptr, &old_action);
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// CHECK: Warning: REAL(sigaction_symname) == nullptr.
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printf("PASS\n");
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// CHECK: PASS
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}
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