diff options
Diffstat (limited to 'absl/base/internal/low_level_alloc.cc')
-rw-r--r-- | absl/base/internal/low_level_alloc.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/absl/base/internal/low_level_alloc.cc b/absl/base/internal/low_level_alloc.cc index 0a6f30705345..6e636a02c5d1 100644 --- a/absl/base/internal/low_level_alloc.cc +++ b/absl/base/internal/low_level_alloc.cc @@ -401,16 +401,20 @@ bool LowLevelAlloc::DeleteArena(Arena *arena) { ABSL_RAW_CHECK(munmap_result != 0, "LowLevelAlloc::DeleteArena: VitualFree failed"); #else +#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) == 0) { munmap_result = munmap(region, size); } else { munmap_result = base_internal::DirectMunmap(region, size); } +#else + munmap_result = munmap(region, size); +#endif // ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING if (munmap_result != 0) { ABSL_RAW_LOG(FATAL, "LowLevelAlloc::DeleteArena: munmap failed: %d", errno); } -#endif +#endif // _WIN32 } section.Leave(); arena->~Arena(); @@ -545,6 +549,7 @@ static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) { MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); ABSL_RAW_CHECK(new_pages != nullptr, "VirtualAlloc failed"); #else +#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { new_pages = base_internal::DirectMmap(nullptr, new_pages_size, PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); @@ -552,10 +557,15 @@ static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) { new_pages = mmap(nullptr, new_pages_size, PROT_WRITE | PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); } +#else + new_pages = mmap(nullptr, new_pages_size, PROT_WRITE | PROT_READ, + MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); +#endif // ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING if (new_pages == MAP_FAILED) { ABSL_RAW_LOG(FATAL, "mmap error: %d", errno); } -#endif + +#endif // _WIN32 arena->mu.Lock(); s = reinterpret_cast<AllocList *>(new_pages); s->header.size = new_pages_size; |