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70 lines
1.9 KiB
70 lines
1.9 KiB
// This test is broken with shared libstdc++ / libc++ on Android.
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// RUN: %clangxx_hwasan -static-libstdc++ %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=GOOD
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// RUN: %clangxx_hwasan -static-libstdc++ -DNO_SANITIZE_F %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=GOOD
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// RUN: %clangxx_hwasan_oldrt -static-libstdc++ %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=GOOD
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// RUN: %clangxx_hwasan_oldrt -static-libstdc++ %s -mllvm -hwasan-instrument-landing-pads=0 -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=BAD
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// C++ tests on x86_64 require instrumented libc++/libstdc++.
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// REQUIRES: aarch64-target-arch
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#include <stdexcept>
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#include <cstdio>
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static void optimization_barrier(void* arg) {
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asm volatile("" : : "r"(arg) : "memory");
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}
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__attribute__((noinline))
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void h() {
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char x[1000];
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optimization_barrier(x);
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throw std::runtime_error("hello");
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}
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__attribute__((noinline))
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void g() {
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char x[1000];
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optimization_barrier(x);
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h();
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optimization_barrier(x);
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}
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__attribute__((noinline))
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void hwasan_read(char *p, int size) {
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char volatile sink;
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for (int i = 0; i < size; ++i)
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sink = p[i];
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}
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__attribute__((noinline, no_sanitize("hwaddress"))) void after_catch() {
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char x[10000];
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hwasan_read(&x[0], sizeof(x));
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}
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__attribute__((noinline))
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#ifdef NO_SANITIZE_F
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__attribute__((no_sanitize("hwaddress")))
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#endif
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void f() {
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char x[1000];
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try {
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// Put two tagged frames on the stack, throw an exception from the deepest one.
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g();
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} catch (const std::runtime_error &e) {
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// Put an untagged frame on stack, check that it is indeed untagged.
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// This relies on exception support zeroing out stack tags.
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// BAD: tag-mismatch
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after_catch();
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// Check that an in-scope stack allocation is still tagged.
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// This relies on exception support not zeroing too much.
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hwasan_read(&x[0], sizeof(x));
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// GOOD: hello
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printf("%s\n", e.what());
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}
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}
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int main() {
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f();
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}
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