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Add test coverage for default linker 

llvm-svn: 261261
This commit is contained in:
Xinliang David Li 2016-02-18 21:11:37 +00:00
parent cb4525443c
commit 0fc35d0a42
1 changed files with 11 additions and 4 deletions
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15
compiler-rt/test/profile/Linux/coverage_test.cpp
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@ -2,7 +2,16 @@
// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
// RUN: llvm-profdata merge -o %t.profdata %t.profraw
// RUN: llvm-cov show %t -instr-profile %t.profdata -filename-equivalence 2>&1 | FileCheck %s
//
// BFD linker older than 2.26 has a bug that per-func profile data will be wrongly garbage collected when GC is turned on. We only do end-to-end test here without GC:
// RUN: %clang_profgen -O2 -fprofile-instr-generate -fcoverage-mapping -o %t.2 %s
// RUN: env LLVM_PROFILE_FILE=%t.2.profraw %run %t.2
// RUN: llvm-profdata merge -o %t.2.profdata %t.2.profraw
// RUN: llvm-cov show %t.2 -instr-profile %t.2.profdata -filename-equivalence 2>&1 | FileCheck %s
// Check covmap is not garbage collected when GC is turned on with BFD linker. Due to the bug mentioned above, we can only
// do the check with objdump:
// RUN: %clang_profgen -O2 -fprofile-instr-generate -fcoverage-mapping -Wl,--gc-sections -o %t.3 %s
// RUN: llvm-objdump -h %t.3 | FileCheck --check-prefix COVMAP %s
// Check PIE option
// RUN: %clang_profgen -fuse-ld=gold -O2 -fdata-sections -ffunction-sections -fPIE -pie -fprofile-instr-generate -fcoverage-mapping -Wl,--gc-sections -o %t.pie %s
// RUN: env LLVM_PROFILE_FILE=%t.pie.profraw %run %t.pie
// RUN: llvm-profdata merge -o %t.pie.profdata %t.pie.profraw
@ -22,7 +31,5 @@ int main() { // CHECK: 1| [[@LINE]]|int main(
return 0; // CHECK: 1| [[@LINE]]| return
} // CHECK: 1| [[@LINE]]|}
// COVMAP: __llvm_covmap {{.*}}