diff options
Diffstat (limited to 'src/google')
| -rw-r--r-- | src/google/call_stack.h | 73 | ||||
| -rw-r--r-- | src/google/minidump_processor.h | 8 | ||||
| -rw-r--r-- | src/google/stack_frame.h | 47 | ||||
| -rw-r--r-- | src/google/stack_frame_cpu.h | 103 |
4 files changed, 200 insertions, 31 deletions
diff --git a/src/google/call_stack.h b/src/google/call_stack.h new file mode 100644 index 00000000..6e8f5f13 --- /dev/null +++ b/src/google/call_stack.h @@ -0,0 +1,73 @@ +// 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. + +// call_stack.h: A call stack comprised of stack frames. +// +// This class manages a vector of stack frames. It is used instead of +// exposing the vector directly to allow the CallStack to own StackFrame +// pointers without having to publicly export the linked_ptr class. A +// CallStack must be composed of pointers instead of objects to allow for +// CPU-specific StackFrame subclasses. +// +// By convention, the stack frame at index 0 is the innermost callee frame, +// and the frame at the highest index in a call stack is the outermost +// caller. CallStack only allows stacks to be built by pushing frames, +// beginning with the innermost callee frame. +// +// Author: Mark Mentovai + +#ifndef GOOGLE_CALL_STACK_H__ +#define GOOGLE_CALL_STACK_H__ + +#include <vector> + +namespace google_airbag { + +using std::vector; + +struct StackFrame; +template<typename T> class linked_ptr; + +class CallStack { + public: + ~CallStack(); + + const vector<StackFrame*>* frames() const { return &frames_; } + + private: + // Stackwalker is responsible for building the frames_ vector. + friend class Stackwalker; + + // Storage for pushed frames. + vector<StackFrame*> frames_; +}; + +} // namespace google_airbag + +#endif // GOOGLE_CALL_STACK_H__ diff --git a/src/google/minidump_processor.h b/src/google/minidump_processor.h index d5470b70..925ea90a 100644 --- a/src/google/minidump_processor.h +++ b/src/google/minidump_processor.h @@ -31,12 +31,12 @@ #define GOOGLE_MINIDUMP_PROCESSOR_H__ #include <string> -#include "google/stack_frame.h" namespace google_airbag { using std::string; +class CallStack; class SymbolSupplier; class MinidumpProcessor { @@ -46,9 +46,9 @@ class MinidumpProcessor { MinidumpProcessor(SymbolSupplier *supplier); ~MinidumpProcessor(); - // Fills in the given StackFrames vector by processing the minidump file. - // Returns true on success. - bool Process(const string &minidump_file, StackFrames *stack_frames); + // Fills in the given CallStack by processing the minidump file. Returns + // true on success. + bool Process(const string &minidump_file, CallStack *stack); private: SymbolSupplier *supplier_; diff --git a/src/google/stack_frame.h b/src/google/stack_frame.h index 110dfc63..43b52dd0 100644 --- a/src/google/stack_frame.h +++ b/src/google/stack_frame.h @@ -31,58 +31,51 @@ #define GOOGLE_STACK_FRAME_H__ #include <string> -#include <vector> #include "google/airbag_types.h" namespace google_airbag { using std::string; -using std::vector; struct StackFrame { - // Initialize sensible defaults, or this will be instantiated with - // primitive members in an undetermined state. StackFrame() - : instruction() - , frame_pointer() - , module_base() - , module_name() - , function_base() - , function_name() - , source_file_name() - , source_line() {} - - // The program counter location relative to the module base + : instruction(), + module_base(), + module_name(), + function_base(), + function_name(), + source_file_name(), + source_line() {} + virtual ~StackFrame() {} + + // The program counter location as an absolute virtual address. For the + // innermost called frame in a stack, this will be an exact program counter + // or instruction pointer value. For all other frames, this will be within + // the instruction that caused execution to branch to a called function, + // but may not necessarily point to the exact beginning of that instruction. u_int64_t instruction; - // The frame pointer to this stack frame - u_int64_t frame_pointer; - - // The base address of the module + // The base address of the module. u_int64_t module_base; - // The module in which the pc resides + // The module in which the instruction resides. string module_name; // The start address of the function, may be omitted if debug symbols // are not available. u_int64_t function_base; - // The function name, may be omitted if debug symbols are not available + // The function name, may be omitted if debug symbols are not available. string function_name; - // The source file name, may be omitted if debug symbols are not available + // The source file name, may be omitted if debug symbols are not available. string source_file_name; - // The (1-based) source line number, - // may be omitted if debug symbols are not available + // The (1-based) source line number, may be omitted if debug symbols are + // not available. int source_line; - - // TODO(bryner): saved registers }; -typedef vector<StackFrame> StackFrames; - } // namespace google_airbag #endif // GOOGLE_STACK_FRAME_H__ diff --git a/src/google/stack_frame_cpu.h b/src/google/stack_frame_cpu.h new file mode 100644 index 00000000..46539418 --- /dev/null +++ b/src/google/stack_frame_cpu.h @@ -0,0 +1,103 @@ +// 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. + +// stack_frame_cpu.h: CPU-specific StackFrame extensions. +// +// These types extend the StackFrame structure to carry CPU-specific register +// state. They are defined in this header instead of stack_frame.h to +// avoid the need to include minidump_format.h when only the generic +// StackFrame type is needed. +// +// Author: Mark Mentovai + +#ifndef GOOGLE_STACK_FRAME_CPU_H__ +#define GOOGLE_STACK_FRAME_CPU_H__ + +#include "google/stack_frame.h" +#include "processor/minidump_format.h" + +namespace google_airbag { + +struct StackFrameX86 : public StackFrame { + // ContextValidity has one entry for each relevant hardware pointer register + // (%eip and %esp) and one entry for each nonvolatile (callee-save) register. + enum ContextValidity { + CONTEXT_VALID_NONE = 0, + CONTEXT_VALID_EIP = 1 << 0, + CONTEXT_VALID_ESP = 1 << 1, + CONTEXT_VALID_EBP = 1 << 2, + CONTEXT_VALID_EBX = 1 << 3, + CONTEXT_VALID_ESI = 1 << 4, + CONTEXT_VALID_EDI = 1 << 5, + CONTEXT_VALID_ALL = -1 + }; + + StackFrameX86() : 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. + MDRawContextX86 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; +}; + +struct StackFramePPC : public StackFrame { + // ContextValidity should eventually contain entries for the validity of + // other nonvolatile (callee-save) registers as in + // StackFrameX86::ContextValidity, but the ppc stackwalker doesn't currently + // locate registers other than the ones listed here. + enum ContextValidity { + CONTEXT_VALID_NONE = 0, + CONTEXT_VALID_SRR0 = 1 << 0, + CONTEXT_VALID_GPR1 = 1 << 1, + CONTEXT_VALID_ALL = -1 + }; + + StackFramePPC() : 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. + MDRawContextPPC 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_airbag + +#endif // GOOGLE_STACK_FRAME_CPU_H__ |