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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/cfi_frame_info-inl.h')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/processor/cfi_frame_info-inl.h | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/cfi_frame_info-inl.h b/toolkit/crashreporter/google-breakpad/src/processor/cfi_frame_info-inl.h deleted file mode 100644 index 7e7af0af9..000000000 --- a/toolkit/crashreporter/google-breakpad/src/processor/cfi_frame_info-inl.h +++ /dev/null @@ -1,119 +0,0 @@ -// -*- mode: C++ -*- - -// Copyright (c) 2010, 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. - -// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> - -// cfi_frame_info-inl.h: Definitions for cfi_frame_info.h inlined functions. - -#ifndef PROCESSOR_CFI_FRAME_INFO_INL_H_ -#define PROCESSOR_CFI_FRAME_INFO_INL_H_ - -#include <string.h> - -namespace google_breakpad { - -template <typename RegisterType, class RawContextType> -bool SimpleCFIWalker<RegisterType, RawContextType>::FindCallerRegisters( - const MemoryRegion &memory, - const CFIFrameInfo &cfi_frame_info, - const RawContextType &callee_context, - int callee_validity, - RawContextType *caller_context, - int *caller_validity) const { - typedef CFIFrameInfo::RegisterValueMap<RegisterType> ValueMap; - ValueMap callee_registers; - ValueMap caller_registers; - // Just for brevity. - typename ValueMap::const_iterator caller_none = caller_registers.end(); - - // Populate callee_registers with register values from callee_context. - for (size_t i = 0; i < map_size_; i++) { - const RegisterSet &r = register_map_[i]; - if (callee_validity & r.validity_flag) - callee_registers[r.name] = callee_context.*r.context_member; - } - - // Apply the rules, and see what register values they yield. - if (!cfi_frame_info.FindCallerRegs<RegisterType>(callee_registers, memory, - &caller_registers)) - return false; - - // Populate *caller_context with the values the rules placed in - // caller_registers. - memset(caller_context, 0xda, sizeof(*caller_context)); - *caller_validity = 0; - for (size_t i = 0; i < map_size_; i++) { - const RegisterSet &r = register_map_[i]; - typename ValueMap::const_iterator caller_entry; - - // Did the rules provide a value for this register by its name? - caller_entry = caller_registers.find(r.name); - if (caller_entry != caller_none) { - caller_context->*r.context_member = caller_entry->second; - *caller_validity |= r.validity_flag; - continue; - } - - // Did the rules provide a value for this register under its - // alternate name? - if (r.alternate_name) { - caller_entry = caller_registers.find(r.alternate_name); - if (caller_entry != caller_none) { - caller_context->*r.context_member = caller_entry->second; - *caller_validity |= r.validity_flag; - continue; - } - } - - // Is this a callee-saves register? The walker assumes that these - // still hold the caller's value if the CFI doesn't mention them. - // - // Note that other frame walkers may fail to recover callee-saves - // registers; for example, the x86 "traditional" strategy only - // recovers %eip, %esp, and %ebp, even though %ebx, %esi, and %edi - // are callee-saves, too. It is not correct to blindly set the - // valid bit for all callee-saves registers, without first - // checking its validity bit in the callee. - if (r.callee_saves && (callee_validity & r.validity_flag) != 0) { - caller_context->*r.context_member = callee_context.*r.context_member; - *caller_validity |= r.validity_flag; - continue; - } - - // Otherwise, the register's value is unknown. - } - - return true; -} - -} // namespace google_breakpad - -#endif // PROCESSOR_CFI_FRAME_INFO_INL_H_ |