diff options
Diffstat (limited to 'libdexfile/dex/dex_file_layout.cc')
-rw-r--r-- | libdexfile/dex/dex_file_layout.cc | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/libdexfile/dex/dex_file_layout.cc b/libdexfile/dex/dex_file_layout.cc index f15e925446..f4dd2c5f9e 100644 --- a/libdexfile/dex/dex_file_layout.cc +++ b/libdexfile/dex/dex_file_layout.cc @@ -16,63 +16,12 @@ #include "dex_file_layout.h" - #include "base/bit_utils.h" #include "base/mman.h" #include "dex_file.h" namespace art { -int DexLayoutSection::MadviseLargestPageAlignedRegion(const uint8_t* begin, - const uint8_t* end, - int advice) { -#ifdef _WIN32 - UNUSED(begin); - UNUSED(end); - UNUSED(advice); - PLOG(WARNING) << "madvise is unsupported on Windows."; -#else - DCHECK_LE(begin, end); - begin = AlignUp(begin, kPageSize); - end = AlignDown(end, kPageSize); - if (begin < end) { - // TODO: remove the direct dependency on madvise here. - int result = madvise(const_cast<uint8_t*>(begin), end - begin, advice); - if (result != 0) { - PLOG(WARNING) << "madvise failed " << result; - } - return result; - } -#endif - return 0; -} - -void DexLayoutSection::Subsection::Madvise(const DexFile* dex_file, int advice) const { - DCHECK(dex_file != nullptr); - DCHECK_LT(start_offset_, dex_file->Size()); - DCHECK_LE(end_offset_, dex_file->Size()); - MadviseLargestPageAlignedRegion(dex_file->Begin() + start_offset_, - dex_file->Begin() + end_offset_, - advice); -} - -void DexLayoutSections::MadviseAtLoad(const DexFile* dex_file) const { -#ifdef _WIN32 - UNUSED(dex_file); - PLOG(WARNING) << "madvise is unsupported on Windows."; -#else - // The dex file is already defaulted to random access everywhere. - for (const DexLayoutSection& section : sections_) { - section.parts_[static_cast<size_t>(LayoutType::kLayoutTypeStartupOnly)].Madvise( - dex_file, - MADV_WILLNEED); - section.parts_[static_cast<size_t>(LayoutType::kLayoutTypeHot)].Madvise( - dex_file, - MADV_WILLNEED); - } -#endif -} - std::ostream& operator<<(std::ostream& os, const DexLayoutSection& section) { for (size_t i = 0; i < static_cast<size_t>(LayoutType::kLayoutTypeCount); ++i) { const DexLayoutSection::Subsection& part = section.parts_[i]; |