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5a3d6ce956
Allow `-fsanitize=kcfi` to be enabled with `-fsanitize-coverage=` modes
such as `trace-{pc,cmp}`.
Link: https://github.com/ClangBuiltLinux/linux/issues/1743
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D138458
106 lines
4.5 KiB
C
106 lines
4.5 KiB
C
// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=address -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,ASAN
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=bounds -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,BOUNDS
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=memory -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,MSAN
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=thread -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,TSAN
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=undefined -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,UBSAN
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// RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=kcfi -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,KCFI
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int x[10];
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extern void (*f)(void);
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// CHECK-LABEL: define dso_local void @foo(
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void foo(int n) {
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// CHECK-DAG: call void @__sanitizer_cov_trace_pc
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// CHECK-DAG: call void @__sanitizer_cov_trace_const_cmp
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// ASAN-DAG: call void @__asan_report_store
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// MSAN-DAG: call void @__msan_warning
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// BOUNDS-DAG: call void @__ubsan_handle_out_of_bounds
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// TSAN-DAG: call void @__tsan_func_entry
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// UBSAN-DAG: call void @__ubsan_handle
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if (n)
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x[n] = 42;
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// KCFI-DAG: call void %[[#]]() [ "kcfi"(i32 {{.*}}) ]
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f();
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}
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static inline __attribute__((__always_inline__)) void always_inlined_fn(int n) {
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if (n)
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x[n] = 42;
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}
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// CHECK-LABEL: define dso_local void @test_always_inline(
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void test_always_inline(int n) {
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// CHECK-DAG: call void @__sanitizer_cov_trace_pc
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// CHECK-DAG: call void @__sanitizer_cov_trace_const_cmp
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always_inlined_fn(n);
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}
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// CHECK-LABEL: define dso_local void @test_no_sanitize_coverage(
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__attribute__((no_sanitize("coverage"))) void test_no_sanitize_coverage(int n) {
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// CHECK-NOT: call void @__sanitizer_cov_trace_pc
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// CHECK-NOT: call void @__sanitizer_cov_trace_const_cmp
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// ASAN-DAG: call void @__asan_report_store
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// MSAN-DAG: call void @__msan_warning
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// BOUNDS-DAG: call void @__ubsan_handle_out_of_bounds
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// TSAN-DAG: call void @__tsan_func_entry
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// UBSAN-DAG: call void @__ubsan_handle
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if (n)
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x[n] = 42;
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// KCFI-DAG: call void %[[#]]() [ "kcfi"(i32 {{.*}}) ]
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f();
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}
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// CHECK-LABEL: define dso_local void @test_no_sanitize_combined(
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__attribute__((no_sanitize("address", "memory", "thread", "bounds", "undefined", "coverage")))
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void test_no_sanitize_combined(int n) {
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// CHECK-NOT: call void @__sanitizer_cov_trace_pc
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// CHECK-NOT: call void @__sanitizer_cov_trace_const_cmp
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// ASAN-NOT: call void @__asan_report_store
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// MSAN-NOT: call void @__msan_warning
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// BOUNDS-NOT: call void @__ubsan_handle_out_of_bounds
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// BOUNDS-NOT: call void @llvm.trap()
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// TSAN-NOT: call void @__tsan_func_entry
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// UBSAN-NOT: call void @__ubsan_handle
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if (n)
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x[n] = 42;
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}
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// CHECK-LABEL: define dso_local void @test_no_sanitize_separate(
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__attribute__((no_sanitize("address")))
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__attribute__((no_sanitize("memory")))
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__attribute__((no_sanitize("thread")))
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__attribute__((no_sanitize("bounds")))
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__attribute__((no_sanitize("undefined")))
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__attribute__((no_sanitize("coverage")))
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void test_no_sanitize_separate(int n) {
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// CHECK-NOT: call void @__sanitizer_cov_trace_pc
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// CHECK-NOT: call void @__sanitizer_cov_trace_const_cmp
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// ASAN-NOT: call void @__asan_report_store
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// MSAN-NOT: call void @__msan_warning
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// BOUNDS-NOT: call void @__ubsan_handle_out_of_bounds
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// BOUNDS-NOT: call void @llvm.trap()
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// TSAN-NOT: call void @__tsan_func_entry
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// UBSAN-NOT: call void @__ubsan_handle
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if (n)
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x[n] = 42;
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}
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// CHECK-LABEL: define dso_local void @test_no_sanitize_kcfi(
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__attribute__((no_sanitize("kcfi", "coverage")))
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void test_no_sanitize_kcfi(void) {
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// CHECK-NOT: call void @__sanitizer_cov_trace
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// KCFI-NOT: call void %[[#]]() [ "kcfi"(i32 {{.*}}) ]
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f();
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}
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// CHECK-LABEL: define dso_local void @test_no_sanitize_always_inline(
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__attribute__((no_sanitize("coverage")))
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void test_no_sanitize_always_inline(int n) {
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// CHECK-NOT: call void @__sanitizer_cov_trace_pc
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// CHECK-NOT: call void @__sanitizer_cov_trace_const_cmp
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always_inlined_fn(n);
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}
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// CHECK-LABEL: declare void
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