michael@0: 
michael@0: /* libunwind - a platform-independent unwind library
michael@0:    Copyright 2011 Linaro Limited
michael@0: 
michael@0: This file is part of libunwind.
michael@0: 
michael@0: Permission is hereby granted, free of charge, to any person obtaining
michael@0: a copy of this software and associated documentation files (the
michael@0: "Software"), to deal in the Software without restriction, including
michael@0: without limitation the rights to use, copy, modify, merge, publish,
michael@0: distribute, sublicense, and/or sell copies of the Software, and to
michael@0: permit persons to whom the Software is furnished to do so, subject to
michael@0: the following conditions:
michael@0: 
michael@0: The above copyright notice and this permission notice shall be
michael@0: included in all copies or substantial portions of the Software.
michael@0: 
michael@0: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
michael@0: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
michael@0: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
michael@0: NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
michael@0: LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
michael@0: OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
michael@0: WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
michael@0: 
michael@0: // Copyright (c) 2010 Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: 
michael@0: // Derived from libunwind, with extensive modifications.
michael@0: 
michael@0: #ifndef COMMON_ARM_EX_TO_MODULE__
michael@0: #define COMMON_ARM_EX_TO_MODULE__
michael@0: 
michael@0: #include "common/module.h"
michael@0: 
michael@0: #include <string.h>
michael@0: 
michael@0: namespace arm_ex_to_module {
michael@0: 
michael@0: using google_breakpad::Module;
michael@0: 
michael@0: typedef enum extab_cmd {
michael@0:   ARM_EXIDX_CMD_FINISH,
michael@0:   ARM_EXIDX_CMD_SUB_FROM_VSP,
michael@0:   ARM_EXIDX_CMD_ADD_TO_VSP,
michael@0:   ARM_EXIDX_CMD_REG_POP,
michael@0:   ARM_EXIDX_CMD_REG_TO_SP,
michael@0:   ARM_EXIDX_CMD_VFP_POP,
michael@0:   ARM_EXIDX_CMD_WREG_POP,
michael@0:   ARM_EXIDX_CMD_WCGR_POP,
michael@0:   ARM_EXIDX_CMD_RESERVED,
michael@0:   ARM_EXIDX_CMD_REFUSED,
michael@0: } extab_cmd_t;
michael@0: 
michael@0: struct exidx_entry {
michael@0:   uint32_t addr;
michael@0:   uint32_t data;
michael@0: };
michael@0: 
michael@0: struct extab_data {
michael@0:   extab_cmd_t cmd;
michael@0:   uint32_t data;
michael@0: };
michael@0: 
michael@0: enum extab_cmd_flags {
michael@0:   ARM_EXIDX_VFP_SHIFT_16 = 1 << 16,
michael@0:   ARM_EXIDX_VFP_FSTMD = 1 << 17, // distinguishes FSTMxxD from FSTMxxX
michael@0: };
michael@0: 
michael@0: static const char* const regnames[] = {
michael@0:  "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
michael@0:  "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc",
michael@0:  "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
michael@0:  "fps", "cpsr"
michael@0: };
michael@0: 
michael@0: // Receives information from arm_ex_reader::ExceptionTableInfo
michael@0: // and adds it to the Module object
michael@0: class ARMExToModule {
michael@0:  public:
michael@0:   ARMExToModule(Module* module)
michael@0:       : module_(module) { }
michael@0:   ~ARMExToModule() { }
michael@0:   void AddStackFrame(uintptr_t addr, size_t size);
michael@0:   int ImproveStackFrame(const struct extab_data* edata);
michael@0:   void DeleteStackFrame();
michael@0:   void SubmitStackFrame();
michael@0:  private:
michael@0:   Module* module_;
michael@0:   Module::StackFrameEntry* stack_frame_entry_;
michael@0:   Module::Expr vsp_;
michael@0:   int TranslateCmd(const struct extab_data* edata,
michael@0:                    Module::StackFrameEntry* entry,
michael@0:                    Module::Expr& vsp);
michael@0: };
michael@0: 
michael@0: } // namespace arm_ex_to_module
michael@0: 
michael@0: #endif // COMMON_ARM_EX_TO_MODULE__