diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/client/mac/handler/protected_memory_allocator.cc')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/client/mac/handler/protected_memory_allocator.cc | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/client/mac/handler/protected_memory_allocator.cc b/toolkit/crashreporter/google-breakpad/src/client/mac/handler/protected_memory_allocator.cc deleted file mode 100644 index 6142ad124..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/mac/handler/protected_memory_allocator.cc +++ /dev/null @@ -1,92 +0,0 @@ -// Copyright (c) 2006, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// ProtectedMemoryAllocator -// -// See the header file for documentation - -#include "protected_memory_allocator.h" -#include <assert.h> - -//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -ProtectedMemoryAllocator::ProtectedMemoryAllocator(vm_size_t pool_size) - : pool_size_(pool_size), - next_alloc_offset_(0), - valid_(false) { - - kern_return_t result = vm_allocate(mach_task_self(), - &base_address_, - pool_size, - TRUE - ); - - valid_ = (result == KERN_SUCCESS); - assert(valid_); -} - -//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -ProtectedMemoryAllocator::~ProtectedMemoryAllocator() { - vm_deallocate(mach_task_self(), - base_address_, - pool_size_ - ); -} - -//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -char *ProtectedMemoryAllocator::Allocate(vm_size_t bytes) { - if (valid_ && next_alloc_offset_ + bytes <= pool_size_) { - char *p = (char*)base_address_ + next_alloc_offset_; - next_alloc_offset_ += bytes; - return p; - } - - return NULL; // ran out of memory in our allocation block -} - -//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -kern_return_t ProtectedMemoryAllocator::Protect() { - kern_return_t result = vm_protect(mach_task_self(), - base_address_, - pool_size_, - FALSE, - VM_PROT_READ); - - return result; -} - -//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -kern_return_t ProtectedMemoryAllocator::Unprotect() { - kern_return_t result = vm_protect(mach_task_self(), - base_address_, - pool_size_, - FALSE, - VM_PROT_READ | VM_PROT_WRITE); - - return result; -} |