74 lines · cpp
1// Tests trace pc guard coverage collection.2 3// REQUIRES: has_sancovcc4// Doesn't work on big-endian targets.5// UNSUPPORTED: ubsan,target={{(powerpc64|s390x|sparc|thumb).*}}6// XFAIL: tsan,darwin7// XFAIL: android && asan8 9// RUN: rm -rf %t_workdir10// RUN: mkdir -p %t_workdir11// RUN: cd %t_workdir12// RUN: %clangxx -DSHARED1 -O0 -fsanitize-coverage=trace-pc-guard -shared %s -o %t_1.so -fPIC13// RUN: %clangxx -DSHARED2 -O0 -fsanitize-coverage=trace-pc-guard -shared %s -o %t_2.so -fPIC14// RUN: %clangxx -DMAIN -O0 -fsanitize-coverage=trace-pc-guard %s -o %t %t_1.so %t_2.so15// RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s16// RUN: %sancovcc -covered-functions -strip_path_prefix=TestCases/ *.sancov \17// RUN: %t %t_1.so %t_2.so 2>&1 | \18// RUN: FileCheck --check-prefix=CHECK-SANCOV %s19// RUN: rm -rf %t_workdir20 21#include <stdio.h>22 23extern "C" {24 int bar();25 int baz();26}27 28#ifdef MAIN29 30int foo() {31 fprintf(stderr, "foo\n");32 return 1;33}34 35int main() {36 fprintf(stderr, "main\n");37 foo();38 bar();39 baz();40}41 42#endif // MAIN43 44extern "C" {45 46#ifdef SHARED147int bar() {48 fprintf(stderr, "bar\n");49 return 1;50}51#endif52 53#ifdef SHARED254int baz() {55 fprintf(stderr, "baz\n");56 return 1;57}58#endif59 60} // extern "C"61 62// CHECK: main63// CHECK-NEXT: foo64// CHECK-NEXT: bar65// CHECK-NEXT: baz66// CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}.sancov: 2 PCs written67// CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_2.so.{{.*}}.sancov: 1 PCs written68// CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_1.so.{{.*}}.sancov: 1 PCs written69//70// CHECK-SANCOV: Ignoring {{.*}}_1.so and its coverage because __sanitizer_cov* functions were not found.71// CHECK-SANCOV: Ignoring {{.*}}_2.so and its coverage because __sanitizer_cov* functions were not found.72// CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cpp:[[@LINE-42]] foo73// CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cpp:[[@LINE-38]] main74