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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-05-17 01:27:30 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-05-17 01:27:30 +0000 |
| commit | 8a44ab3d8ee6684e359666a9ca23fbeb0e1883b7 (patch) | |
| tree | 20357a21e436b9fddc1e7ede807efa987458be82 /test/profile/instrprof-dlopen.test | |
| parent | 1a51c83ee1365e67aaa971321e6c26e096710700 (diff) | |
InstrProf: Support profiling dlopen'd shared libraries
Shared objects are hard. After this commit, we do the right thing when
profiling two separate shared objects that have been dlopen'd with
`RTLD_LOCAL`, when the main executable is *not* being profiled.
This mainly simplifies the writer logic.
- At initialization, determine the output filename and truncate the
file. Depending on whether shared objects can see each other, this
may happen multiple times.
- At exit, each executable writes its own profile in append mode.
<rdar://problem/16918688>
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@209053 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/profile/instrprof-dlopen.test')
| -rw-r--r-- | test/profile/instrprof-dlopen.test | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/profile/instrprof-dlopen.test b/test/profile/instrprof-dlopen.test new file mode 100644 index 000000000..bba21334f --- /dev/null +++ b/test/profile/instrprof-dlopen.test @@ -0,0 +1,34 @@ +RUN: mkdir -p %t.d +RUN: %clang_profgen -o %t.d/func.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func.c +RUN: %clang_profgen -o %t.d/func2.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func2.c +RUN: %clang -o %t-local -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS=RTLD_LOCAL %S/Inputs/instrprof-dlopen-main.c +RUN: %clang -o %t-global -fPIC -DDLOPEN_FUNC_DIR=\"%t.d\" -DDLOPEN_FLAGS=RTLD_GLOBAL %S/Inputs/instrprof-dlopen-main.c + +RUN: %clang -c -o %t.d/main.o %S/Inputs/instrprof-dlopen-main.c +RUN: %clang_profgen -o %t-static %S/Inputs/instrprof-dlopen-func.c %S/Inputs/instrprof-dlopen-func2.c %t.d/main.o + +RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static +RUN: env LLVM_PROFILE_FILE=%t-local.profraw %run %t-local +RUN: env LLVM_PROFILE_FILE=%t-global.profraw %run %t-global + +RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw +RUN: llvm-profdata merge -o %t-local.profdata %t-local.profraw +RUN: llvm-profdata merge -o %t-global.profdata %t-global.profraw + +RUN: %clang_profuse=%t-static.profdata -o %t-func.static.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func.c +RUN: %clang_profuse=%t-local.profdata -o %t-func.local.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func.c +RUN: %clang_profuse=%t-global.profdata -o %t-func.global.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func.c +RUN: diff %t-func.static.ll %t-func.local.ll +RUN: diff %t-func.static.ll %t-func.global.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-func2.static.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func2.c +RUN: %clang_profuse=%t-local.profdata -o %t-func2.local.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func2.c +RUN: %clang_profuse=%t-global.profdata -o %t-func2.global.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-func2.c +RUN: diff %t-func2.static.ll %t-func2.local.ll +RUN: diff %t-func2.static.ll %t-func2.global.ll + +RUN: %clang_profuse=%t-static.profdata -o %t-main.static.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-main.c +RUN: %clang_profuse=%t-local.profdata -o %t-main.local.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-main.c +RUN: %clang_profuse=%t-local.profdata -o %t-main.global.ll -S -emit-llvm %S/Inputs/instrprof-dlopen-main.c +RUN: diff %t-main.static.ll %t-main.local.ll +RUN: diff %t-main.static.ll %t-main.global.ll |