在Linux与Windows上获取当前堆栈信息的方法

#include <stdio.h>#include <execinfo.h>#include <signal.h>#include <stdlib.h>#include <unistd.h>void handler(int sig) { void *array[5]; size_t size; // get void*'s for all entries on the stack size = backtrace(array, 5); // print out all the frames to stderr fprintf(stderr, "Error: signal %d:/n", sig); char** msgs = backtrace_symbols(array, size); for(int i=1;i<size && msgs[i];++i) printf("[%d] %s/n", i, msgs[i]); exit(1);}void baz() { int *foo = (int*)-1; // make a bad pointer printf("%d/n", *foo);  // causes segfault}void bar() { baz(); }void foo() { bar(); }int main(int argc, char **argv) { signal(SIGSEGV, handler); // install our handler foo(); // this will call foo, bar, and baz. baz segfaults.}

#include "stdafx.h"#include <Windows.h>#include <iostream>#include <DbgHelp.h>#include <TlHelp32.h>using namespace std;HANDLE ph;void baz(){ int* v = 0; *v = 0;}void bar(){ baz();}void foo(){ __try {  bar(); } __except(EXCEPTION_EXECUTE_HANDLER) {  auto sire = SymInitialize(ph, 0, FALSE);  sire = SymSetOptions(SymGetOptions() | SYMOPT_LOAD_LINES | SYMOPT_FAIL_CRITICAL_ERRORS);  CONTEXT ctx = { 0 };  ctx.ContextFlags = CONTEXT_FULL;  RtlCaptureContext(&ctx);  STACKFRAME64 sf = { 0 }; #ifdef _M_IX86 // ignore IA64  auto imageType = IMAGE_FILE_MACHINE_I386;  sf.AddrPC.Offset = ctx.Eip;  sf.AddrPC.Mode = AddrModeFlat;  sf.AddrFrame.Offset = ctx.Ebp;  sf.AddrFrame.Mode = AddrModeFlat;  sf.AddrStack.Offset = ctx.Esp;  sf.AddrStack.Mode = AddrModeFlat; #elif _M_X64  auto imageType = IMAGE_FILE_MACHINE_AMD64;  sf.AddrPC.Offset = ctx.Rip;  sf.AddrPC.Mode = AddrModeFlat;  sf.AddrFrame.Offset = ctx.Rsp;  sf.AddrFrame.Mode = AddrModeFlat;  sf.AddrStack.Offset = ctx.Rsp;  sf.AddrStack.Mode = AddrModeFlat; #endif  MODULEENTRY32 me;  auto snap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, GetCurrentProcessId());  auto info = Module32First(snap, &me);  while (info) {   auto dw = SymLoadModule64(ph, 0, me.szExePath, me.szModule, (DWORD64)me.modBaseAddr, me.modBaseSize);   if (!Module32Next(snap, &me))break;  }  CloseHandle(snap);  auto thread = GetCurrentThread();  PIMAGEHLP_SYMBOL64 sym = (IMAGEHLP_SYMBOL64 *)malloc(sizeof(IMAGEHLP_SYMBOL64) + 100);  if (!sym)   return;  memset(sym, 0, sizeof(IMAGEHLP_SYMBOL64) + 100);  sym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);  sym->MaxNameLength = 100;  IMAGEHLP_LINE64 line = { 0 };  line.SizeOfStruct = sizeof(line);  for (;;) {   auto result = StackWalk(imageType, ph, thread, &sf, &ctx, 0, SymFunctionTableAccess64, SymGetModuleBase64, 0);   if (result) {    DWORD64 offset = 0;    DWORD offset_for_line = 0;    CHAR und_fullname[100];    if (sf.AddrPC.Offset != 0) {     if (SymGetSymFromAddr64(ph, sf.AddrPC.Offset, &offset, sym)) {      UnDecorateSymbolName(sym->Name, und_fullname, 100, UNDNAME_COMPLETE);      cout << und_fullname;     }     if (SymGetLineFromAddr64(ph, sf.AddrPC.Offset, &offset_for_line, &line)) {      cout << " " << line.FileName << "(" << line.LineNumber << ")";     }     cout << endl;    }   }   else    break;  }  SymCleanup(ph); }}int main(){ ph = GetCurrentProcess(); foo(); return 0;}