[compiler-rt] [ctx_profile] Integration test (PR #92456)

[Michał Górny via llvm-commits]

mgorny wrote:

This test fails for me, at least when doing a standalone build:

```
FAIL: CtxProfile-x86_64-linux :: TestCases/generate-context.cpp (2185 of 7045)
******************** TEST 'CtxProfile-x86_64-linux :: TestCases/generate-context.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 4: mkdir -p /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X8
6_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include
+ mkdir -p /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include
RUN: at line 5: cp /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/llvm/include/llvm/ProfileData/CtxInstrContextNode.h /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include/
+ cp /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/llvm/include/llvm/ProfileData/CtxInstrContextNode.h /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include/
RUN: at line 8: /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/lib/llvm/19/bin/clang  --driver-mode=g++ -ldl -lpthread /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt/test/ctx_profile/TestCases/generate-context.cpp -lclang_rt.ctx_profile -I/var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include -O2 -o /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp.bin -mllvm -profile-context-root=theRoot
+ /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/lib/llvm/19/bin/clang --driver-mode=g++ -ldl -lpthread /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt/test/ctx_profile/TestCases/generate-context.cpp -lclang_rt.ctx_profile -I/var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp_include -O2 -o /var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/test/ctx_profile/X86_64LinuxConfig/TestCases/Output/generate-context.cpp.tmp.bin -mllvm -profile-context-root=theRoot
x86_64-pc-linux-gnu-ld: error: unable to find library -lclang_rt.ctx_profile
clang: error: linker command failed with exit code 1 (use -v to see invocation)

--

********************
```

The library's at:

```
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-19.0.0_pre20240518/work/compiler-rt_build/lib/clang/19/lib/linux/libclang_rt.ctx_profile-x86_64.a
```

So I guess it's missing the suffix and/or `-L`?

https://github.com/llvm/llvm-project/pull/92456