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Basic arm cpu support for processor. r=mark at http://breakpad.appspot.com/49011

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@454 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2009-12-19 21:43:53 +00:00
parent 7a77f45f79
commit 9276b0d301
10 changed files with 469 additions and 9 deletions
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5
Makefile.am
View File

@ -95,6 +95,8 @@ src_libbreakpad_la_SOURCES = \
src/processor/stackwalker.cc \
src/processor/stackwalker_amd64.cc \
src/processor/stackwalker_amd64.h \
src/processor/stackwalker_arm.cc \
src/processor/stackwalker_arm.h \
src/processor/stackwalker_ppc.cc \
src/processor/stackwalker_ppc.h \
src/processor/stackwalker_sparc.cc \
@ -172,6 +174,7 @@ src_processor_minidump_processor_unittest_LDADD = \
src/processor/process_state.lo \
src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_arm.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo
@ -219,6 +222,7 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/pathname_stripper.lo \
src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_arm.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo
@ -249,6 +253,7 @@ src_processor_minidump_stackwalk_LDADD = \
src/processor/simple_symbol_supplier.lo \
src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_arm.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo

130
src/google_breakpad/common/minidump_cpu_arm.h Normal file
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@ -0,0 +1,130 @@
/* Copyright (c) 2009, 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. */
/* minidump_format.h: A cross-platform reimplementation of minidump-related
* portions of DbgHelp.h from the Windows Platform SDK.
*
* (This is C99 source, please don't corrupt it with C++.)
*
* This file contains the necessary definitions to read minidump files
* produced on ARM. These files may be read on any platform provided
* that the alignments of these structures on the processing system are
* identical to the alignments of these structures on the producing system.
* For this reason, precise-sized types are used. The structures defined
* by this file have been laid out to minimize alignment problems by
* ensuring that all members are aligned on their natural boundaries.
* In some cases, tail-padding may be significant when different ABIs specify
* different tail-padding behaviors. To avoid problems when reading or
* writing affected structures, MD_*_SIZE macros are provided where needed,
* containing the useful size of the structures without padding.
*
* Structures that are defined by Microsoft to contain a zero-length array
* are instead defined here to contain an array with one element, as
* zero-length arrays are forbidden by standard C and C++. In these cases,
* *_minsize constants are provided to be used in place of sizeof. For a
* cleaner interface to these sizes when using C++, see minidump_size.h.
*
* These structures are also sufficient to populate minidump files.
*
* Because precise data type sizes are crucial for this implementation to
* function properly and portably, a set of primitive types with known sizes
* are used as the basis of each structure defined by this file.
*
* Author: Julian Seward
*/
/*
* ARM support
*/
#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__
#define MD_FLOATINGSAVEAREA_ARM_FPR_COUNT 32
#define MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT 8
/*
* Note that these structures *do not* map directly to the CONTEXT
* structure defined in WinNT.h in the Windows Mobile SDK. That structure
* does not accomodate VFPv3, and I'm unsure if it was ever used in the
* wild anyway, as Windows CE only seems to produce "cedumps" which
* are not exactly minidumps.
*/
typedef struct {
u_int64_t fpscr; /* FPU status register */
/* 32 64-bit floating point registers, d0 .. d31. */
u_int64_t regs[MD_FLOATINGSAVEAREA_ARM_FPR_COUNT];
/* Miscellaneous control words */
u_int32_t extra[MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT];
} MDFloatingSaveAreaARM;
#define MD_CONTEXT_ARM_GPR_COUNT 16
typedef struct {
/* The next field determines the layout of the structure, and which parts
* of it are populated
*/
u_int32_t context_flags;
/* 16 32-bit integer registers, r0 .. r15
* Note the following fixed uses:
* r13 is the stack pointer
* r14 is the link register
* r15 is the program counter
*/
u_int32_t iregs[MD_CONTEXT_ARM_GPR_COUNT];
/* CPSR (flags, basically): 32 bits:
bit 31 - N (negative)
bit 30 - Z (zero)
bit 29 - C (carry)
bit 28 - V (overflow)
bit 27 - Q (saturation flag, sticky)
All other fields -- ignore */
u_int32_t cpsr;
/* The next field is included with MD_CONTEXT_ARM_FLOATING_POINT */
MDFloatingSaveAreaARM float_save;
} MDRawContextARM;
/* For (MDRawContextARM).context_flags. These values indicate the type of
* context stored in the structure. */
#define MD_CONTEXT_ARM_INTEGER (MD_CONTEXT_ARM | 0x00000002)
#define MD_CONTEXT_ARM_FLOATING_POINT (MD_CONTEXT_ARM | 0x00000004)
#define MD_CONTEXT_ARM_FULL (MD_CONTEXT_ARM_INTEGER | \
MD_CONTEXT_ARM_FLOATING_POINT)
#define MD_CONTEXT_ARM_ALL (MD_CONTEXT_ARM_INTEGER | \
MD_CONTEXT_ARM_FLOATING_POINT)
#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__ */

8
src/google_breakpad/common/minidump_format.h
View File

@ -112,12 +112,12 @@ typedef struct {
u_int32_t context_flags;
} MDRawContextBase;
#include "minidump_cpu_sparc.h"
#include "minidump_cpu_x86.h"
#include "minidump_cpu_amd64.h"
#include "minidump_cpu_arm.h"
#include "minidump_cpu_ppc.h"
#include "minidump_cpu_ppc64.h"
#include "minidump_cpu_amd64.h"
#include "minidump_cpu_sparc.h"
#include "minidump_cpu_x86.h"
/*
* WinVer.h

8
src/google_breakpad/processor/minidump.h
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@ -179,10 +179,11 @@ class MinidumpContext : public MinidumpStream {
// Returns raw CPU-specific context data for the named CPU type. If the
// context data does not match the CPU type or does not exist, returns
// NULL.
const MDRawContextX86* GetContextX86() const;
const MDRawContextPPC* GetContextPPC() const;
const MDRawContextAMD64* GetContextAMD64() const;
const MDRawContextARM* GetContextARM() const;
const MDRawContextPPC* GetContextPPC() const;
const MDRawContextSPARC* GetContextSPARC() const;
const MDRawContextX86* GetContextX86() const;
// Print a human-readable representation of the object to stdout.
void Print();
@ -216,7 +217,8 @@ class MinidumpContext : public MinidumpStream {
MDRawContextAMD64* amd64;
// on Solaris SPARC, sparc is defined as a numeric constant,
// so variables can NOT be named as sparc
MDRawContextSPARC* ctx_sparc;
MDRawContextSPARC* ctx_sparc;
MDRawContextARM* arm;
} context_;
};

27
src/google_breakpad/processor/stack_frame_cpu.h
View File

@ -168,6 +168,33 @@ struct StackFrameSPARC : public StackFrame {
int context_validity;
};
struct StackFrameARM : public StackFrame {
// ContextValidity should eventually contain entries for the validity of
// other nonvolatile (callee-save) registers as in
// StackFrameX86::ContextValidity. I suspect this list is sufficient
// for arm stackwalking.
enum ContextValidity {
CONTEXT_VALID_NONE = 0,
CONTEXT_VALID_R13 = 1 << 0,
CONTEXT_VALID_R14 = 1 << 1,
CONTEXT_VALID_R15 = 1 << 2,
CONTEXT_VALID_ALL = -1
};
StackFrameARM() : context(), context_validity(CONTEXT_VALID_NONE) {}
// Register state. This is only fully valid for the topmost frame in a
// stack. In other frames, the values of nonvolatile registers may be
// present, given sufficient debugging information. Refer to
// context_validity.
MDRawContextARM context;
// context_validity is actually ContextValidity, but int is used because
// the OR operator doesn't work well with enumerated types. This indicates
// which fields in context are valid.
int context_validity;
};
} // namespace google_breakpad
#endif // GOOGLE_BREAKPAD_PROCESSOR_STACK_FRAME_CPU_H__

115
src/processor/minidump.cc
View File

@ -620,6 +620,61 @@ bool MinidumpContext::Read(u_int32_t expected_size) {
break;
}
case MD_CONTEXT_ARM: {
if (expected_size != sizeof(MDRawContextARM)) {
BPLOG(ERROR) << "MinidumpContext arm size mismatch, " <<
expected_size << " != " << sizeof(MDRawContextARM);
return false;
}
scoped_ptr<MDRawContextARM> context_arm(new MDRawContextARM());
// Set the context_flags member, which has already been read, and
// read the rest of the structure beginning with the first member
// after context_flags.
context_arm->context_flags = context_flags;
size_t flags_size = sizeof(context_arm->context_flags);
u_int8_t* context_after_flags =
reinterpret_cast<u_int8_t*>(context_arm.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextARM) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read arm context";
return false;
}
// Do this after reading the entire MDRawContext structure because
// GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext arm does not match system info";
return false;
}
if (minidump_->swap()) {
// context_arm->context_flags was already swapped.
for (unsigned int ireg_index = 0;
ireg_index < MD_CONTEXT_ARM_GPR_COUNT;
++ireg_index) {
Swap(&context_arm->iregs[ireg_index]);
}
Swap(&context_arm->cpsr);
Swap(&context_arm->float_save.fpscr);
for (unsigned int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_ARM_FPR_COUNT;
++fpr_index) {
Swap(&context_arm->float_save.regs[fpr_index]);
}
for (unsigned int fpe_index = 0;
fpe_index < MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT;
++fpe_index) {
Swap(&context_arm->float_save.extra[fpe_index]);
}
}
context_.arm = context_arm.release();
break;
}
default: {
// Unknown context type - Don't log as an error yet. Let the
// caller work that out.
@ -685,6 +740,15 @@ const MDRawContextSPARC* MinidumpContext::GetContextSPARC() const {
return context_.ctx_sparc;
}
const MDRawContextARM* MinidumpContext::GetContextARM() const {
if (GetContextCPU() != MD_CONTEXT_ARM) {
BPLOG(ERROR) << "MinidumpContext cannot get arm context";
return NULL;
}
return context_.arm;
}
void MinidumpContext::FreeContext() {
switch (GetContextCPU()) {
case MD_CONTEXT_X86:
@ -703,6 +767,10 @@ void MinidumpContext::FreeContext() {
delete context_.ctx_sparc;
break;
case MD_CONTEXT_ARM:
delete context_.arm;
break;
default:
// There is no context record (valid_ is false) or there's a
// context record for an unknown CPU (shouldn't happen, only known
@ -762,6 +830,11 @@ bool MinidumpContext::CheckAgainstSystemInfo(u_int32_t context_cpu_type) {
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_SPARC)
return_value = true;
break;
case MD_CONTEXT_ARM:
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_ARM)
return_value = true;
break;
}
BPLOG_IF(ERROR, !return_value) << "MinidumpContext CPU " <<
@ -967,6 +1040,36 @@ void MinidumpContext::Print() {
break;
}
case MD_CONTEXT_ARM: {
const MDRawContextARM* context_arm = GetContextARM();
printf("MDRawContextARM\n");
printf(" context_flags = 0x%x\n",
context_arm->context_flags);
for (unsigned int ireg_index = 0;
ireg_index < MD_CONTEXT_ARM_GPR_COUNT;
++ireg_index) {
printf(" iregs[%2d] = 0x%x\n",
ireg_index, context_arm->iregs[ireg_index]);
}
printf(" cpsr = 0x%x\n", context_arm->cpsr);
printf(" float_save.fpscr = 0x%" PRIx64 "\n",
for (unsigned int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_ARM_FPR_COUNT;
++fpr_index) {
printf(" float_save.regs[%2d] = 0x%" PRIx64 "\n",
fpr_index, context_arm->float_save.regs[fpr_index]);
}
for (unsigned int fpe_index = 0;
fpe_index < MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT;
++fpe_index) {
printf(" float_save.extra[%2d] = 0x%" PRIx64 "\n",
fpe_index, context_arm->float_save.extra[fpe_index]);
}
context_arm->float_save.fpscr);
break;
}
default: {
break;
}
@ -2727,8 +2830,8 @@ MinidumpContext* MinidumpException::GetContext() {
scoped_ptr<MinidumpContext> context(new MinidumpContext(minidump_));
// Don't log as an error if we can still fall back on th thread's context
// (which must be possible if we got his far.)
// Don't log as an error if we can still fall back on the thread's context
// (which must be possible if we got this far.)
if (!context->Read(exception_.thread_context.data_size)) {
BPLOG(INFO) << "MinidumpException cannot read context";
return NULL;
@ -3006,6 +3109,10 @@ string MinidumpSystemInfo::GetCPU() {
cpu = "x86";
break;
case MD_CPU_ARCHITECTURE_AMD64:
cpu = "x86-64";
break;
case MD_CPU_ARCHITECTURE_PPC:
cpu = "ppc";
break;
@ -3014,6 +3121,10 @@ string MinidumpSystemInfo::GetCPU() {
cpu = "sparc";
break;
case MD_CPU_ARCHITECTURE_ARM:
cpu = "arm";
break;
default:
BPLOG(ERROR) << "MinidumpSystemInfo unknown CPU for architecture " <<
HexString(system_info_.processor_architecture);

5
src/processor/minidump_processor.cc
View File

@ -308,6 +308,11 @@ bool MinidumpProcessor::GetCPUInfo(Minidump *dump, SystemInfo *info) {
break;
}
case MD_CPU_ARCHITECTURE_ARM: {
info->cpu = "arm";
break;
}
default: {
// Assign the numeric architecture ID into the CPU string.
char cpu_string[7];

8
src/processor/stackwalker.cc
View File

@ -52,6 +52,7 @@
#include "processor/stackwalker_sparc.h"
#include "processor/stackwalker_x86.h"
#include "processor/stackwalker_amd64.h"
#include "processor/stackwalker_arm.h"
namespace google_breakpad {
@ -181,6 +182,13 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
memory, modules, supplier,
resolver);
break;
case MD_CONTEXT_ARM:
cpu_stackwalker = new StackwalkerARM(system_info,
context->GetContextARM(),
memory, modules, supplier,
resolver);
break;
}
BPLOG_IF(ERROR, !cpu_stackwalker) << "Unknown CPU type " << HexString(cpu) <<

92
src/processor/stackwalker_arm.cc Normal file
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@ -0,0 +1,92 @@
// Copyright (c) 2009, 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.
// stackwalker_arm.cc: arm-specific stackwalker.
//
// See stackwalker_arm.h for documentation.
//
// Author: Mark Mentovai, Ted Mielczarek
#include "processor/stackwalker_arm.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/logging.h"
namespace google_breakpad {
StackwalkerARM::StackwalkerARM(const SystemInfo *system_info,
const MDRawContextARM *context,
MemoryRegion *memory,
const CodeModules *modules,
SymbolSupplier *supplier,
SourceLineResolverInterface *resolver)
: Stackwalker(system_info, memory, modules, supplier, resolver),
context_(context) {
}
StackFrame* StackwalkerARM::GetContextFrame() {
if (!context_ || !memory_) {
BPLOG(ERROR) << "Can't get context frame without context or memory";
return NULL;
}
StackFrameARM *frame = new StackFrameARM();
// The instruction pointer is stored directly in a register (r15), so pull it
// straight out of the CPU context structure.
frame->context = *context_;
frame->context_validity = StackFrameARM::CONTEXT_VALID_ALL;
frame->instruction = frame->context.iregs[15];
return frame;
}
StackFrame* StackwalkerARM::GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info) {
if (!memory_ || !stack) {
BPLOG(ERROR) << "Can't get caller frame without memory or stack";
return NULL;
}
StackFrameARM *last_frame = static_cast<StackFrameARM*>(
stack->frames()->back());
// TODO: Can't actually walk the stack on ARM without the CFI data.
// Implement this when the CFI symbol dumper changes have landed.
return NULL;
}
} // namespace google_breakpad

80
src/processor/stackwalker_arm.h Normal file
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@ -0,0 +1,80 @@
// Copyright (c) 2009, 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.
// stackwalker_arm.h: arm-specific stackwalker.
//
// Provides stack frames given arm register context and a memory region
// corresponding to an arm stack.
//
// Author: Mark Mentovai, Ted Mielczarek
#ifndef PROCESSOR_STACKWALKER_ARM_H__
#define PROCESSOR_STACKWALKER_ARM_H__
#include "google_breakpad/common/breakpad_types.h"
#include "google_breakpad/common/minidump_format.h"
#include "google_breakpad/processor/stackwalker.h"
namespace google_breakpad {
class CodeModules;
class StackwalkerARM : public Stackwalker {
public:
// context is an arm context object that gives access to arm-specific
// register state corresponding to the innermost called frame to be
// included in the stack. The other arguments are passed directly through
// to the base Stackwalker constructor.
StackwalkerARM(const SystemInfo *system_info,
const MDRawContextARM *context,
MemoryRegion *memory,
const CodeModules *modules,
SymbolSupplier *supplier,
SourceLineResolverInterface *resolver);
private:
// Implementation of Stackwalker, using arm context and stack conventions.
// TODO: currently stubbed out, needs CFI symbol dumper support
virtual StackFrame* GetContextFrame();
virtual StackFrame* GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info);
// Stores the CPU context corresponding to the innermost stack frame to
// be returned by GetContextFrame.
const MDRawContextARM *context_;
};
} // namespace google_breakpad
#endif // PROCESSOR_STACKWALKER_ARM_H__