diff options
Diffstat (limited to 'src/google_breakpad/processor')
3 files changed, 28 insertions, 12 deletions
diff --git a/src/google_breakpad/processor/basic_source_line_resolver.h b/src/google_breakpad/processor/basic_source_line_resolver.h index 8ac47e52..831556b5 100644 --- a/src/google_breakpad/processor/basic_source_line_resolver.h +++ b/src/google_breakpad/processor/basic_source_line_resolver.h @@ -60,12 +60,10 @@ class BasicSourceLineResolver : public SourceLineResolverInterface { virtual bool LoadModuleUsingMapBuffer(const string &module_name, const string &map_buffer); - virtual bool HasModule(const string &module_name) const; - virtual void FillSourceLineInfo(StackFrame *frame) const; - virtual WindowsFrameInfo *FindWindowsFrameInfo(const StackFrame *frame) const; + virtual CFIFrameInfo *FindCFIFrameInfo(const StackFrame *frame) const; private: template<class T> class MemAddrMap; diff --git a/src/google_breakpad/processor/source_line_resolver_interface.h b/src/google_breakpad/processor/source_line_resolver_interface.h index 99710376..a7ec9b7f 100644 --- a/src/google_breakpad/processor/source_line_resolver_interface.h +++ b/src/google_breakpad/processor/source_line_resolver_interface.h @@ -43,6 +43,7 @@ using std::string; struct StackFrame; struct WindowsFrameInfo; +struct CFIFrameInfo; class SourceLineResolverInterface { public: @@ -78,6 +79,12 @@ class SourceLineResolverInterface { virtual WindowsFrameInfo *FindWindowsFrameInfo(const StackFrame *frame) const = 0; + // If CFI stack walking information is available covering ADDRESS, + // return a CFIFrameInfo structure describing it. If the information + // is not available, return NULL. The caller takes ownership of any + // returned CFIFrameInfo object. + virtual CFIFrameInfo *FindCFIFrameInfo(const StackFrame *frame) const = 0; + protected: // SourceLineResolverInterface cannot be instantiated except by subclasses SourceLineResolverInterface() {} diff --git a/src/google_breakpad/processor/stack_frame_cpu.h b/src/google_breakpad/processor/stack_frame_cpu.h index 857f373e..8b88fdc6 100644 --- a/src/google_breakpad/processor/stack_frame_cpu.h +++ b/src/google_breakpad/processor/stack_frame_cpu.h @@ -1,3 +1,5 @@ +// -*- mode: c++ -*- + // Copyright (c) 2010 Google Inc. // All rights reserved. // @@ -45,18 +47,26 @@ namespace google_breakpad { struct WindowsFrameInfo; +struct CFIFrameInfo; 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. + // ContextValidity has one entry for each relevant hardware pointer + // register (%eip and %esp) and one entry for each general-purpose + // register. It's worthwhile having validity flags for caller-saves + // registers: they are valid in the youngest frame, and such a frame + // might save a callee-saves register in a caller-saves register, but + // SimpleCFIWalker won't touch registers unless they're marked as valid. 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_EAX = 1 << 3, + CONTEXT_VALID_EBX = 1 << 4, + CONTEXT_VALID_ECX = 1 << 5, + CONTEXT_VALID_EDX = 1 << 6, + CONTEXT_VALID_ESI = 1 << 7, + CONTEXT_VALID_EDI = 1 << 8, CONTEXT_VALID_ALL = -1 }; @@ -77,7 +87,8 @@ struct StackFrameX86 : public StackFrame { : context(), context_validity(CONTEXT_VALID_NONE), trust(FRAME_TRUST_NONE), - windows_frame_info(NULL) {} + windows_frame_info(NULL), + cfi_frame_info(NULL) {} ~StackFrameX86(); // Register state. This is only fully valid for the topmost frame in a @@ -95,10 +106,10 @@ struct StackFrameX86 : public StackFrame { // of this frame. FrameTrust trust; - // Any stack walking information we found describing - // this.instruction. These may be NULL if we couldn't find the - // appropriate information. + // Any stack walking information we found describing this.instruction. + // These may be NULL if there is no such information for that address. WindowsFrameInfo *windows_frame_info; + CFIFrameInfo *cfi_frame_info; }; struct StackFramePPC : public StackFrame { |