diff options
| author | Xinliang David Li <davidxl@google.com> | 2016-01-14 18:09:45 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@google.com> | 2016-01-14 18:09:45 +0000 |
| commit | 5f04f926e9ba769606034a685fe5df3af9dd6bb7 (patch) | |
| tree | d7c6603366be0a751e96f0e06d9181badb753b41 /lldb/packages/Python/lldbsuite/test/functionalities/process_launch/TestProcessLaunch.py | |
| parent | 1d9970a5a99937fabee9efb8b057c42d58a3335b (diff) | |
| download | bcm5719-llvm-5f04f926e9ba769606034a685fe5df3af9dd6bb7.tar.gz bcm5719-llvm-5f04f926e9ba769606034a685fe5df3af9dd6bb7.zip | |
[PGO] [Coverage] put covmap into note section with no 'alloc flag' (Linux)
Coverage mapping data is not referenced by runtime, and they won't be dumped
into profile data. There is no need to allocate memory for covmap sections.
A good side effect of this change is that the coverage map data won't be mistakenly
garbage collected by the linker (for Gold linker only, BFD linker has an issue where the a bug is filed).
Tested with clang build with instrumentation and -fcoverage-mapping and linker GC. The size of
covmap section is ~17.6M so the text segment size will be reduced by this amount with this change.
llvm-svn: 257781
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/functionalities/process_launch/TestProcessLaunch.py')
0 files changed, 0 insertions, 0 deletions
