diff options
| author | Aiden Grossman <agrossman154@yahoo.com> | 2023-12-07 00:46:20 -0800 |
|---|---|---|
| committer | Aiden Grossman <agrossman154@yahoo.com> | 2023-12-07 00:47:04 -0800 |
| commit | 5058d738bae15d88acc3d2977c713f43f09cb7a8 (patch) | |
| tree | f334fa8b4e745827ba9b1e70b117004b1397f0e1 /llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp | |
| parent | e462937173e7879d26c86595f234164d2ca397e7 (diff) | |
| download | llvm-5058d738bae15d88acc3d2977c713f43f09cb7a8.zip llvm-5058d738bae15d88acc3d2977c713f43f09cb7a8.tar.gz llvm-5058d738bae15d88acc3d2977c713f43f09cb7a8.tar.bz2 | |
[llvm-exegesis] Add MAP_FIXED_NOREPLACE definiton
MAP_FIXED_NOREPLACE doesn't exist on older kernels, so we need to define
it to be MAP_FIXED.
Diffstat (limited to 'llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp')
| -rw-r--r-- | llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp index d1b0a58..8e242cd 100644 --- a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp +++ b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp @@ -44,7 +44,14 @@ #define GLIBC_INITS_RSEQ #endif #endif + +// Before kernel 4.17, Linux did not support MAP_FIXED_NOREPLACE, so if it is +// not available, simplfy define it as MAP_FIXED which performs the same +// function but does not guarantee existing mappings won't get clobbered. +#ifndef MAP_FIXED_NOREPLACE +#define MAP_FIXED_NOREPLACE MAP_FIXED #endif +#endif // __linux__ namespace llvm { namespace exegesis { |