diff options
author | Petr Hosek <phosek@chromium.org> | 2017-10-11 19:29:14 +0000 |
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committer | Petr Hosek <phosek@chromium.org> | 2017-10-11 19:29:14 +0000 |
commit | 7898b35d683484e7e7b4449e1f308794137675fd (patch) | |
tree | ffcdd56212d46c610d2a12e1bb4eb899aabed020 /lib/sanitizer_common/sanitizer_posix_libcdep.cc | |
parent | c37be534a252a7cb8e2ab04b15256232394dd7a9 (diff) |
Revert "[sanitizer] Introduce ReservedAddressRange to sanitizer_common"
This reverts commit r315493 which is failing to build on sanitizer-windows.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@315494 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_posix_libcdep.cc')
-rw-r--r-- | lib/sanitizer_common/sanitizer_posix_libcdep.cc | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/lib/sanitizer_common/sanitizer_posix_libcdep.cc b/lib/sanitizer_common/sanitizer_posix_libcdep.cc index b6b09b5e4..4214d91c5 100644 --- a/lib/sanitizer_common/sanitizer_posix_libcdep.cc +++ b/lib/sanitizer_common/sanitizer_posix_libcdep.cc @@ -337,42 +337,6 @@ void *MmapFixedNoReserve(uptr fixed_addr, uptr size, const char *name) { return (void *)p; } -uptr ReservedAddressRange::Init(uptr size, const char *name, uptr fixed_addr) { - if (fixed_addr) { - base_ = MmapFixedNoAccess(fixed_addr, size, name); - } else { - base_ = MmapNoAccess(size); - } - size_ = size; - name_ = name; - return reinterpret_cast<uptr>(base_); -} - -// Uses fixed_addr for now. -// Will use offset instead once we've implemented this function for real. -uptr ReservedAddressRange::Map(uptr fixed_addr, uptr size, - bool tolerate_enomem) { - if (tolerate_enomem) { - return reinterpret_cast<uptr>(MmapFixedOrDieOnFatalError(fixed_addr, size)); - } - return reinterpret_cast<uptr>(MmapFixedOrDie(fixed_addr, size)); -} - -void ReservedAddressRange::Unmap(uptr addr, uptr size) { - void* addr_as_void = reinterpret_cast<void*>(addr); - uptr base_as_uptr = reinterpret_cast<uptr>(base_); - // Only unmap at the beginning or end of the range. - CHECK_EQ((addr_as_void == base_) || (addr + size == base_as_uptr + size_), - true); - // Detect overflows. - CHECK_LE(size, (base_as_uptr + size_) - addr); - UnmapOrDie(reinterpret_cast<void*>(addr), size); - if (addr_as_void == base_) { - base_ = reinterpret_cast<void*>(addr + size); - } - size_ = size_ - size; -} - void *MmapFixedNoAccess(uptr fixed_addr, uptr size, const char *name) { int fd = name ? GetNamedMappingFd(name, size) : -1; unsigned flags = MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE; |