Suyu/breakpad
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/breakpad.git synced 2025-12-26 17:25:04 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Refactor some bits of StackWalkerX86 / StackFrameX86 out into their respective parent classes so they can be used by other architecture implementations.

Browse source 
R=jimb at http://breakpad.appspot.com/205001/show

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@703 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2010-10-01 13:01:57 +00:00
parent de2c055770
commit 8c33b3e9c9
13 changed files with 118 additions and 113 deletions
Download patch file Download diff file Expand all files Collapse all files

37
src/google_breakpad/processor/stackwalker.h
View file

@ -44,12 +44,12 @@
#include <set>
#include <string>
#include "google_breakpad/common/breakpad_types.h"
#include "google_breakpad/processor/code_modules.h"
#include "google_breakpad/processor/memory_region.h"
namespace google_breakpad {
class CallStack;
class CodeModules;
class MemoryRegion;
class MinidumpContext;
class SourceLineResolverInterface;
struct StackFrame;
@ -108,6 +108,39 @@ class Stackwalker {
// Returns false otherwise.
bool InstructionAddressSeemsValid(u_int64_t address);
// Scan the stack starting at location_start, looking for an address
// that looks like a valid instruction pointer. Addresses must
// 1) be contained in the current stack memory
// 2) pass the checks in InstructionAddressSeemsValid
//
// Returns true if a valid-looking instruction pointer was found.
// When returning true, sets location_found to the address at which
// the value was found, and ip_found to the value contained at that
// location in memory.
template<typename InstructionType>
bool ScanForReturnAddress(InstructionType location_start,
InstructionType *location_found,
InstructionType *ip_found) {
const int kRASearchWords = 15;
for (InstructionType location = location_start;
location <= location_start + kRASearchWords * sizeof(InstructionType);
location += sizeof(InstructionType)) {
InstructionType ip;
if (!memory_->GetMemoryAtAddress(location, &ip))
break;
if (modules_ && modules_->GetModuleForAddress(ip) &&
InstructionAddressSeemsValid(ip)) {
*ip_found = ip;
*location_found = location;
return true;
}
}
// nothing found
return false;
}
// Information about the system that produced the minidump. Subclasses
// and the SymbolSupplier may find this information useful.
const SystemInfo *system_info_;