51d928f0cf
The test case build a binary from C++, and checks for the number of functions the PointerAuthCFIFixup pass runs on. This can change based on the platform. To account for this, the patch changes the number to a regex. The test failed when running on RHEL 9.
37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
// Test to demonstrate that functions compiled with synchronous unwind tables
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// are ignored by the PointerAuthCFIAnalyzer.
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// Exception handling is needed to have _any_ unwind tables, otherwise the
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// PointerAuthCFIAnalyzer does not run on these functions, so it does not ignore
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// any function.
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//
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// REQUIRES: system-linux,bolt-runtime
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//
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// RUN: %clangxx --target=aarch64-unknown-linux-gnu \
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// RUN: -mbranch-protection=pac-ret \
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// RUN: -fno-asynchronous-unwind-tables \
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// RUN: %s -o %t.exe -Wl,-q
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// RUN: llvm-bolt %t.exe -o %t.bolt | FileCheck %s --check-prefix=CHECK
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// Number of functions with .cfi-negate-ra-state in the binary is
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// platform-dependent.
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// CHECK: BOLT-INFO: PointerAuthCFIAnalyzer ran on {{[0-9]+}} functions.
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// CHECK-SAME: Ignored {{[0-9]}} functions ({{[0-9.]+}}%) because of CFI
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// CHECK-SAME: inconsistencies
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// CHECK-NEXT: BOLT-WARNING: PointerAuthCFIAnalyzer only supports
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// CHECK-SAME: asynchronous unwind tables. For C compilers, see
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// CHECK-SAME: -fasynchronous-unwind-tables.
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#include <cstdio>
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#include <stdexcept>
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void foo() { throw std::runtime_error("Exception from foo()."); }
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int main() {
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try {
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foo();
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} catch (const std::exception &e) {
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printf("Exception caught: %s\n", e.what());
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}
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return 0;
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}
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