forked from 0ad/0ad
janwas
711bff0d3a
mmgr: remove wdbg calls (was prototype); use sysdep/debug interface wdbg: no longer call it dbghelp63.h; should be installed normally in compiler dir win_internal.h: fix inevitable MS screwups in new dbghelp.h (*sigh*) This was SVN commit r1816.
1475 lines
35 KiB
C++
Executable File
1475 lines
35 KiB
C++
Executable File
// stack walk, improved assert and exception handler
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// Copyright (c) 2002 Jan Wassenberg
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// Contact info:
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// Jan.Wassenberg@stud.uni-karlsruhe.de
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// http://www.stud.uni-karlsruhe.de/~urkt/
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#include "precompiled.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include "lib.h"
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#include "win_internal.h"
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#define _NO_CVCONST_H // request SymTagEnum be defined
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#include "dbghelp.h"
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#include <OAIdl.h> // VARIANT
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#include "wdbg.h"
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#include "assert_dlg.h"
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#include "lib/timer.h"
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#ifdef _MSC_VER
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#pragma comment(lib, "dbghelp.lib")
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#endif
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// automatic module init (before main) and shutdown (before termination)
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#pragma data_seg(".LIB$WCC")
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WIN_REGISTER_FUNC(wdbg_init);
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#pragma data_seg(".LIB$WTB")
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WIN_REGISTER_FUNC(wdbg_shutdown);
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#pragma data_seg()
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//#define LOCALISED_TEXT
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#ifdef LOCALISED_TEXT
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#include "ps/i18n.h"
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#endif // LOCALISED_TEXT
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// dbghelp isn't thread-safe. lock is taken by walk_stack,
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// debug_resolve_symbol, and while dumping a stack frame (dump_frame_cb).
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static void lock() { win_lock(DBGHELP_CS); }
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static void unlock() { win_unlock(DBGHELP_CS); }
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static void DumpMiniDump(HANDLE hFile, PEXCEPTION_POINTERS excpInfo);
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static void set_exception_handler();
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static HINSTANCE hInstance;
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static HANDLE hProcess;
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static uintptr_t mod_base;
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static WORD machine;
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// needed by StackWalk
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static int wdbg_init()
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{
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// main.cpp will have an exception handler, but this covers low-level init
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// (before main is called)
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set_exception_handler();
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hProcess = GetCurrentProcess();
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hInstance = GetModuleHandle(0);
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SymSetOptions(SYMOPT_DEFERRED_LOADS);
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SymInitialize(hProcess, 0, TRUE);
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u64 base = SymGetModuleBase64(hProcess, (u64)&wdbg_init);
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IMAGE_NT_HEADERS* header = ImageNtHeader((void*)base);
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machine = header->FileHeader.Machine;
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return 0;
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}
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static int wdbg_shutdown(void)
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{
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SymCleanup(hProcess);
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return 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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// need to shoehorn printf-style variable params into
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// the OutputDebugString call.
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// - don't want to split into multiple calls - would add newlines to output.
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// - fixing Win32 _vsnprintf to return # characters that would be written,
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// as required by C99, looks difficult and unnecessary. if any other code
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// needs that, implement GNU vasprintf.
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// - fixed size buffers aren't nice, but much simpler than vasprintf-style
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// allocate+expand_until_it_fits. these calls are for quick debug output,
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// not loads of data, anyway.
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static const int MAX_CNT = 512;
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// max output size of 1 call of (w)debug_out (including \0)
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void debug_out(const char* fmt, ...)
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{
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char buf[MAX_CNT];
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buf[MAX_CNT-1] = '\0';
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buf, MAX_CNT-1, fmt, ap);
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va_end(ap);
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OutputDebugString(buf);
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}
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void wdebug_out(const wchar_t* fmt, ...)
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{
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wchar_t buf[MAX_CNT];
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buf[MAX_CNT-1] = L'\0';
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va_list ap;
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va_start(ap, fmt);
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vsnwprintf(buf, MAX_CNT-1, fmt, ap);
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va_end(ap);
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OutputDebugStringW(buf);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// dbghelp support routines for walking the stack
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//
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//////////////////////////////////////////////////////////////////////////////
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// iterate over a call stack.
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// if <thread_context> != 0, we start there; otherwise, at the current
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// stack frame. call <cb> for each stack frame found, also passing the
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// user-specified <ctx>. if it returns <= 0, we stop immediately and
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// pass on that value; otherwise, the eventual return value is -1
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// ("callback never succeeded").
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//
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// note: can't just pass function's address to the callback -
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// dump_frame_cb needs the frame pointer for reg-relative variables.
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static int walk_stack(int (*cb)(STACKFRAME64*, void*), void* ctx, CONTEXT* thread_context = 0)
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{
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HANDLE hThread = GetCurrentThread();
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// we need to set STACKFRAME64.AddrPC and AddrFrame for the initial
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// StackWalk call in our loop. there is no portable way to do this,
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// since CONTEXT is platform-specific. if the caller passed in a thread
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// context (e.g. if calling from an exception handler), we use that;
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// otherwise, determine the current PC / frame pointer ourselves.
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// GetThreadContext is documented not to work if the current thread
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// is running, but that seems to be current practice. Regardless, we
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// avoid using it, since simple asm code is safer.
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STACKFRAME64 frame;
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memset(&frame, 0, sizeof(frame));
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#if defined(_M_AMD64)
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DWORD64 rip_, rbp_;
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if(thread_context)
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{
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rip_ = thread_context->Rip;
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rbp_ = thread_context->Rbp;
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}
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else
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{
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__asm
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{
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cur_rip:
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mov rax, offset cur_rip
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mov [rip_], rax
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mov [rbp_], rbp
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}
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}
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frame.AddrPC.Offset = rip_;
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frame.AddrPC.Mode = AddrModeFlat;
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frame.AddrFrame.Offset = rbp_;
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frame.AddrFrame.Mode = AddrModeFlat;
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#elif defined(_M_IX86)
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DWORD eip_, ebp_;
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if(thread_context)
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{
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eip_ = thread_context->Eip;
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ebp_ = thread_context->Ebp;
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}
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else
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{
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__asm
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{
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cur_eip:
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mov eax, offset cur_eip
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mov [eip_], eax
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mov [ebp_], ebp
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}
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}
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frame.AddrPC.Offset = eip_;
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frame.AddrPC.Mode = AddrModeFlat;
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frame.AddrFrame.Offset = ebp_;
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frame.AddrFrame.Mode = AddrModeFlat;
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#else
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#error "TODO: set STACKFRAME64.AddrPC, AddrFrame for this platform"
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#endif
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// for each stack frame found:
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for(;;)
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{
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lock();
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BOOL ok = StackWalk64(machine, hProcess, hThread, &frame, thread_context, 0, SymFunctionTableAccess64, SymGetModuleBase64, 0);
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unlock();
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// no more frames found, and callback never succeeded; abort.
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if(!ok)
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return -1;
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void* func = (void*)frame.AddrPC.Offset;
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int ret = cb(&frame, ctx);
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// callback reports it's done; stop calling it and return that value.
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// (can be 0 for success, or a negative error code)
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if(ret <= 0)
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return ret;
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}
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}
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// ~500�s
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int debug_resolve_symbol(void* ptr_of_interest, char* sym_name, char* file, int* line)
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{
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int ret = -1;
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lock();
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{
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const DWORD64 addr = (DWORD64)ptr_of_interest;
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// get symbol name
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SYMBOL_INFO_PACKAGE sp;
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SYMBOL_INFO* sym = &sp.si;
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sym->SizeOfStruct = sizeof(sp.si);
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sym->MaxNameLen = MAX_SYM_NAME;
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if(!SymFromAddr(hProcess, addr, 0, sym))
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goto fail;
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sprintf(sym_name, "%s", sym->Name);
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// get source file + line number
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IMAGEHLP_LINE64 line_info = { sizeof(IMAGEHLP_LINE64) };
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DWORD displacement; // unused but required by SymGetLineFromAddr64!
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if(!SymGetLineFromAddr64(hProcess, addr, &displacement, &line_info))
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goto fail;
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sprintf(file, "%s", line_info.FileName);
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*line = line_info.LineNumber;
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ret = 0;
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}
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fail:
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unlock();
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return ret;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// get address of Nth function above us on the call stack (uses walk_stack)
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//
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//////////////////////////////////////////////////////////////////////////////
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struct NthCallerParams
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{
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int left_to_skip;
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void* func;
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};
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// called by walk_stack for each stack frame
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static int nth_caller_cb(STACKFRAME64* frame, void* ctx)
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{
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NthCallerParams* p = (NthCallerParams*)ctx;
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// not the one we want yet
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if(p->left_to_skip > 0)
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{
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p->left_to_skip--;
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return 1; // keep calling
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}
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// return its address
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p->func = (void*)frame->AddrPC.Offset;
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return 0;
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}
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// n starts at 1
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void* debug_get_nth_caller(uint n)
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{
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NthCallerParams params = { (int)n-1 + 3, 0 };
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// skip walk_stack, debug_get_nth_caller and its caller
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if(walk_stack(nth_caller_cb, ¶ms) == 0)
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return params.func;
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return 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// helper routines for symbol value dump
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//
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//////////////////////////////////////////////////////////////////////////////
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static const size_t DUMP_BUF_SIZE = 64000;
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static wchar_t buf[DUMP_BUF_SIZE]; // buffer for stack trace
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static wchar_t* pos; // current pos in buf
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static void out(const wchar_t* fmt, ...)
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{
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// Don't overflow the buffer (and abort if we're about to)
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if (pos-buf+1000 > DUMP_BUF_SIZE)
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{
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debug_warn("");
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return;
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};
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va_list args;
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va_start(args, fmt);
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pos += vswprintf(pos, 1000, fmt, args);
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va_end(args);
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}
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// is an ASCII string apparently located at <addr>?
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// set <stride> to 2 to search for WCS-2 strings (of western characters!).
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// called by dump_ptr and dump_array for their string special-cases.
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//
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// algorithm: scan the "string" and count # text chars vs. garbage.
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static bool is_string_ptr(u64 addr, size_t stride = 1)
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{
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// completely bogus on IA32; save ourselves the segfault (slow).
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#ifdef _WIN32
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if(addr < 0x10000 || addr > 0xc0000000)
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return false;
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#endif
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const char* str = (const char*)addr;
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__try
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{
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int score = 0;
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for(;;)
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{
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// current character is:
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const int c = *str & 0xff; // prevent sign extension
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// .. text
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if(isalnum(c))
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score += 2;
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// .. end of string
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else if(!c)
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break;
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// .. garbage
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else if(!isprint(c))
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score -= 5;
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// too much garbage found, probably not a string.
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// abort fairly early so we don't segfault unnecessarily (slow).
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if(score <= -10)
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break;
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str += stride;
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}
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return (score > 0);
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}
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__except(1)
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{
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return false;
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}
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}
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// zero-extend <size> (truncated to 8) bytes of little-endian data to u64,
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// starting at address <p> (need not be aligned).
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static u64 movzx_64le(const u8* p, size_t size)
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{
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if(size > 8)
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size = 8;
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u64 data = 0;
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for(u64 i = 0; i < MIN(size,8); i++)
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data |= ((u64)p[i]) << (i*8);
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return data;
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}
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// sign-extend <size> (truncated to 8) bytes of little-endian data to i64,
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// starting at address <p> (need not be aligned).
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static i64 movsx_64le(const u8* p, size_t size)
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{
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if(size > 8)
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size = 8;
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u64 data = movzx_64le(p, size);
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// no point in sign-extending if >= 8 bytes were requested
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if(size < 8)
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{
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u64 sign_bit = 1;
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sign_bit <<= (size*8)-1;
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// be sure that we don't shift more than variable's bit width
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// number would be negative in the smaller type,
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// so sign-extend, i.e. set all more significant bits.
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if(data & sign_bit)
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{
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const u64 size_mask = (sign_bit+sign_bit)-1;
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data |= ~size_mask;
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}
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}
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return (i64)data;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// output values of specific types of local variables
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//
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//////////////////////////////////////////////////////////////////////////////
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// forward decl; called by dump_udt.
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static int dump_data_sym(DWORD data_idx, const u8* p, uint level);
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// forward decl; called by dump_array.
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static int dump_type_sym(DWORD type_idx, const u8* p, uint level);
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// these functions return -1 if they're not able to produce any reasonable
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// output; dump_type_sym will display value as "?"
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// <type_id> is a SymTagPointerType; output its value.
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// called by dump_type_sym; lock is held.
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static int dump_ptr(const u8* p, size_t size)
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{
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const u64 data = movzx_64le(p, size);
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const wchar_t* fmt;
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// char*
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if(is_string_ptr(data, sizeof(char)))
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fmt = L"\"%hs\"";
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// WCHAR*
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else if(is_string_ptr(data, sizeof(WCHAR)))
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fmt = L"\"%s\"";
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// generic 32-bit pointer
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else if(size == 4)
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fmt = L"0x%08X";
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// generic 64-bit pointer
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else
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fmt = L"0x%I64016X";
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out(fmt, data);
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return 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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// <type_id> is a SymTagBaseType; output its value.
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// called by dump_type_sym; lock is held.
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static int dump_base_type(DWORD type_idx, const u8* p, size_t size, uint level)
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{
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UNUSED(level);
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DWORD base_type;
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if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_BASETYPE, &base_type))
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return -1;
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u64 data = movzx_64le(p, size);
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// single out() call
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// (note: passing pointers in u64 assumes little-endian)
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const wchar_t* fmt;
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switch(base_type)
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{
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case btBool:
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assert(size == sizeof(bool));
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fmt = L"%hs";
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data = (u64)(data? "true " : "false");
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break;
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case btFloat:
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if(size == sizeof(float))
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fmt = L"%f";
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else if(size == sizeof(double))
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fmt = L"%lf";
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else
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assert(0);
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break;
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// signed integers
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case btInt:
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case btLong:
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data = movsx_64le(p, size);
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if(size == 2 || size == 4)
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fmt = L"%d";
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else if(size == 8)
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fmt = L"%I64d";
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else
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assert(0);
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break;
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// unsigned integers (displayed as hex)
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case btUInt:
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case btULong:
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if(size == 2)
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fmt = L"0x%04X";
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else if(size == 4)
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fmt = L"0x%08X";
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else if(size == 8)
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fmt = L"0x%016I64X";
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else
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assert(0);
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break;
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// either 8-bit integer or character (character value appended below)
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case btChar:
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assert(size == sizeof(char));
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fmt = L"%I64d";
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break;
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case btWChar:
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assert(size == sizeof(wchar_t));
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fmt = L"%c";
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break;
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// shouldn't happen
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case btNoType:
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case btVoid:
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|
default:
|
|
//-fallthrough
|
|
|
|
// unsupported complex types
|
|
case btBCD:
|
|
case btCurrency:
|
|
case btDate:
|
|
case btVariant:
|
|
case btComplex:
|
|
case btBit:
|
|
case btBSTR:
|
|
case btHresult:
|
|
return -1;
|
|
}
|
|
|
|
out(fmt, data);
|
|
|
|
// cannot be shoehorned into single out().
|
|
// note: no need for type checks; if the value is right,
|
|
// we just display what character that corresponds to.
|
|
if(data < 0x100)
|
|
{
|
|
int c = (int)data;
|
|
if(isprint(c))
|
|
out(L" ('%hc')", c);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// <type_id> is a SymTagEnum; output its value.
|
|
// called by dump_type_sym; lock is held.
|
|
static int dump_enum(DWORD type_idx, const u8* p, size_t size, uint level)
|
|
{
|
|
UNUSED(level);
|
|
|
|
const i64 current_value = movsx_64le(p, size);
|
|
|
|
DWORD num_children;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_CHILDRENCOUNT, &num_children))
|
|
goto name_unavailable;
|
|
|
|
// alloc an array to hold child IDs
|
|
const size_t MAX_CHILDREN = 1000;
|
|
char child_buf[sizeof(TI_FINDCHILDREN_PARAMS)+MAX_CHILDREN*sizeof(DWORD)];
|
|
TI_FINDCHILDREN_PARAMS* fcp = (TI_FINDCHILDREN_PARAMS*)child_buf;
|
|
fcp->Start = 0;
|
|
fcp->Count = MIN(num_children, MAX_CHILDREN);
|
|
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_FINDCHILDREN, fcp))
|
|
goto name_unavailable;
|
|
|
|
for(uint i = 0; i < fcp->Count; i++)
|
|
{
|
|
DWORD child_data_idx = fcp->ChildId[i];
|
|
|
|
// get enum value. don't make any assumptions about the
|
|
// variant's type (i.e. size) - no restriction is documented.
|
|
// also don't do this manually - it's tedious and we might not
|
|
// cover everything. OLE DLL is already pulled in anyway.
|
|
VARIANT v;
|
|
SymGetTypeInfo(hProcess, mod_base, child_data_idx, TI_GET_VALUE, &v);
|
|
if(VariantChangeType(&v, &v, 0, VT_I8) != S_OK)
|
|
continue;
|
|
|
|
if(current_value == v.llVal)
|
|
{
|
|
WCHAR* name;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, child_data_idx, TI_GET_SYMNAME, &name))
|
|
goto name_unavailable;
|
|
|
|
out(L"%s", name);
|
|
LocalFree(name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
name_unavailable:
|
|
// we can produce reasonable output (the numeric value),
|
|
// but weren't able to retrieve the matching enum name.
|
|
out(L"%I64d", current_value);
|
|
return 1;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// <type_id> is a SymTagArrayType; output its value.
|
|
// called by dump_type_sym; lock is held.
|
|
static int dump_array(DWORD type_idx, const u8* p, size_t size, uint level)
|
|
{
|
|
DWORD elements;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_COUNT, &elements))
|
|
return -1;
|
|
|
|
DWORD el_type_idx = 0;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_TYPEID, &el_type_idx))
|
|
return -1;
|
|
|
|
size_t stride = (size_t)(size / elements);
|
|
|
|
|
|
//
|
|
// special case for character arrays, i.e. strings
|
|
//
|
|
|
|
u64 addr = (u64)p;
|
|
// .. char[]
|
|
if(stride == sizeof(char) && is_string_ptr(addr, stride))
|
|
{
|
|
out(L"\"%hs\"", p);
|
|
return 0;
|
|
}
|
|
// .. WCHAR[] (don't use wchar_t, since that might be 4 bytes)
|
|
if(stride == sizeof(WCHAR) && is_string_ptr(addr, stride))
|
|
{
|
|
out(L"\"%s\"", p);
|
|
return 0;
|
|
}
|
|
|
|
|
|
//
|
|
// regular array output
|
|
//
|
|
|
|
int err = 0;
|
|
|
|
out(L"{ ");
|
|
|
|
const uint elements_to_show = MIN(32, elements);
|
|
for(uint i = 0; i < elements_to_show; i++)
|
|
{
|
|
int ret = dump_type_sym(el_type_idx, p + i*stride, level+1);
|
|
// skip trailing comma
|
|
if(i != elements_to_show-1)
|
|
out(L", ");
|
|
|
|
// remember first error
|
|
if(err == 0)
|
|
err = ret;
|
|
}
|
|
// we truncated some
|
|
if(elements != elements_to_show)
|
|
out(L" ...");
|
|
|
|
out(L" }");
|
|
return err;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// <type_id> is a SymTagUDT; output its value.
|
|
// called by dump_type_sym; lock is held.
|
|
static int dump_udt(DWORD type_idx, const u8* p, size_t size, uint level)
|
|
{
|
|
UNUSED(size);
|
|
|
|
out(L"\r\n");
|
|
|
|
DWORD num_children;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_CHILDRENCOUNT, &num_children))
|
|
return -1;
|
|
|
|
// alloc an array to hold child IDs
|
|
const size_t MAX_CHILDREN = 1000;
|
|
char child_buf[sizeof(TI_FINDCHILDREN_PARAMS)+MAX_CHILDREN*sizeof(DWORD)];
|
|
TI_FINDCHILDREN_PARAMS* fcp = (TI_FINDCHILDREN_PARAMS*)child_buf;
|
|
fcp->Start = 0;
|
|
fcp->Count = MIN(num_children, MAX_CHILDREN);
|
|
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_FINDCHILDREN, fcp))
|
|
return -1;
|
|
|
|
int err = 0;
|
|
|
|
// recursively display each child (call back to dump_data)
|
|
for(uint i = 0; i < fcp->Count; i++)
|
|
{
|
|
DWORD child_data_idx = fcp->ChildId[i];
|
|
|
|
DWORD ofs = 0;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, child_data_idx, TI_GET_OFFSET, &ofs))
|
|
debug_warn("dump_udt: warning: TI_GET_OFFSET query failed");
|
|
|
|
int ret = dump_data_sym(child_data_idx, p+ofs, level+1);
|
|
|
|
// remember first error
|
|
if(err == 0)
|
|
err = ret;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
//
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
// given a data symbol's type identifier, output its type name (if
|
|
// applicable), determine what kind of variable it describes, and
|
|
// call the appropriate dump_* routine.
|
|
// lock is held.
|
|
static int dump_type_sym(DWORD type_idx, const u8* p, uint level)
|
|
{
|
|
DWORD type_tag;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_SYMTAG, &type_tag))
|
|
return -1;
|
|
|
|
// get "type name" (only available for SymTagUDT, SymTagEnum, and
|
|
// SymTagTypedef types).
|
|
// note: can't use SymFromIndex to get tag as well as name, because it
|
|
// fails when name isn't available (e.g. if this is a SymTagBaseType).
|
|
WCHAR* type_name;
|
|
if(SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_SYMNAME, &type_name))
|
|
{
|
|
out(L"(%s)", type_name);
|
|
LocalFree(type_name);
|
|
}
|
|
|
|
ULONG64 size;
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_LENGTH, &size))
|
|
return -1;
|
|
|
|
|
|
switch(type_tag)
|
|
{
|
|
case SymTagPointerType:
|
|
return dump_ptr(p, (size_t)size);
|
|
|
|
case SymTagEnum:
|
|
return dump_enum(type_idx, p, (size_t)size, level);
|
|
|
|
case SymTagBaseType:
|
|
return dump_base_type(type_idx, p, (size_t)size, level);
|
|
|
|
case SymTagUDT:
|
|
return dump_udt(type_idx, p, (size_t)size, level);
|
|
|
|
case SymTagArrayType:
|
|
return dump_array(type_idx, p, (size_t)size, level);
|
|
|
|
case SymTagTypedef:
|
|
if(!SymGetTypeInfo(hProcess, mod_base, type_idx, TI_GET_TYPEID, &type_idx))
|
|
return -1;
|
|
return dump_type_sym(type_idx, p, level);
|
|
|
|
default:
|
|
debug_out("Unknown tag: %d\n", type_tag);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// indent to current nesting level, display name, and output value via
|
|
// dump_type_sym.
|
|
//
|
|
// split out of dump_sym_cb so dump_udt can call back here for its members.
|
|
// lock is held.
|
|
static int dump_data_sym(DWORD data_idx, const u8* p, uint level)
|
|
{
|
|
SYMBOL_INFO_PACKAGEW sp;
|
|
SYMBOL_INFOW* sym = &sp.si;
|
|
sym->SizeOfStruct = sizeof(sp.si);
|
|
sym->MaxNameLen = MAX_SYM_NAME;
|
|
if(!SymFromIndexW(hProcess, mod_base, data_idx, sym))
|
|
return -1;
|
|
|
|
assert(sym->Tag == SymTagData);
|
|
|
|
// indent
|
|
for(uint i = 0; i <= level+1; i++)
|
|
out(L" ");
|
|
|
|
out(L"%s = ", sym->Name);
|
|
|
|
int ret = dump_type_sym(sym->TypeIndex, p, level);
|
|
|
|
// couldn't produce any reasonable output; value = "?"
|
|
if(ret < 0)
|
|
out(L"?");
|
|
|
|
out(L"\r\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
struct DumpSymParams
|
|
{
|
|
STACKFRAME64* frame;
|
|
bool locals_active;
|
|
};
|
|
|
|
// get actual address of what the symbol represents (may be relative
|
|
// to frame pointer); demarcate local/param sections; output name+value via
|
|
// dump_data_sym.
|
|
//
|
|
// called from dump_frame_cb for each local symbol; lock is held.
|
|
static BOOL CALLBACK dump_sym_cb(SYMBOL_INFO* sym, ULONG sym_size, void* ctx)
|
|
{
|
|
UNUSED(sym_size);
|
|
DumpSymParams* p = (DumpSymParams*)ctx;
|
|
|
|
mod_base = (uintptr_t)sym->ModBase;
|
|
|
|
// get address
|
|
ULONG64 addr = sym->Address;
|
|
// .. relative to a register; we assume it's the frame pointer,
|
|
// since sym->Register is undocumented.
|
|
if(sym->Flags & SYMF_REGREL || sym->Flags & SYMF_FRAMEREL)
|
|
addr += p->frame->AddrFrame.Offset;
|
|
// .. in register; we can't reliably retrieve it (since undocumented)
|
|
else if(sym->Flags & SYMF_REGISTER)
|
|
return 1;
|
|
// .. global variable (address already set)
|
|
|
|
// demarcate local / parameter report sections - this is nicer than
|
|
// printing e.g. "local" in front of each variable. we assume that
|
|
// symbols are sorted by group (local/param); if not, we waste space
|
|
// with redundant "locals:"/"params:" tags.
|
|
// note that both flags can be set, so we can't combine the if pairs.
|
|
if(sym->Flags & SYMF_PARAMETER)
|
|
{
|
|
if(p->locals_active)
|
|
{
|
|
out(L"params:\r\n");
|
|
p->locals_active = false;
|
|
}
|
|
}
|
|
else if(sym->Flags & SYMF_LOCAL)
|
|
{
|
|
if(!p->locals_active)
|
|
{
|
|
out(L"locals:\r\n ");
|
|
p->locals_active = true;
|
|
}
|
|
}
|
|
|
|
dump_data_sym(sym->Index, (const u8*)addr, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
struct DumpFrameParams
|
|
{
|
|
int left_to_skip;
|
|
};
|
|
|
|
// called by walk_stack for each stack frame
|
|
static int dump_frame_cb(STACKFRAME64* frame, void* ctx)
|
|
{
|
|
DumpFrameParams* p = (DumpFrameParams*)ctx;
|
|
|
|
// not the one we want yet
|
|
if(p->left_to_skip > 0)
|
|
{
|
|
p->left_to_skip--;
|
|
return 1; // keep calling
|
|
}
|
|
|
|
lock();
|
|
|
|
void* func = (void*)frame->AddrPC.Offset;
|
|
char func_name[1000]; char file[100]; int line;
|
|
if(debug_resolve_symbol(func, func_name, file, &line) == 0)
|
|
out(L"%hs (%hs:%lu)", func_name, file, line);
|
|
else
|
|
out(L"%p", func);
|
|
|
|
out(L"\r\n");
|
|
|
|
// only enumerate symbols for this stack frame
|
|
// (i.e. its locals and parameters)
|
|
// problem: debug info is scope-aware, so we won't see any variables
|
|
// declared in sub-blocks. we'd have to pass an address in that block,
|
|
// which isn't worth the trouble. since
|
|
IMAGEHLP_STACK_FRAME imghlp_frame;
|
|
imghlp_frame.InstructionOffset = (DWORD64)func;
|
|
SymSetContext(hProcess, &imghlp_frame, 0); // last param is ignored
|
|
|
|
DumpSymParams params = { frame, true };
|
|
SymEnumSymbols(hProcess, 0, 0, dump_sym_cb, ¶ms);
|
|
// 2nd and 3rd params indicate scope set by SymSetContext
|
|
// should be used.
|
|
|
|
out(L"\r\n");
|
|
|
|
unlock();
|
|
return 1; // keep calling
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// most recent <skip> stack frames will be skipped
|
|
// (we don't want to show e.g. GetThreadContext / this call)
|
|
static void dump_stack(uint skip, CONTEXT* thread_context = NULL)
|
|
{
|
|
out(L"\r\nCall stack:\r\n\r\n");
|
|
|
|
DumpFrameParams params = { (int)skip+2 };
|
|
// skip dump_stack and walk_stack
|
|
walk_stack(dump_frame_cb, ¶ms, thread_context);
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// "program error" dialog with stack trace (triggered by assert and exception)
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
enum DialogType
|
|
{
|
|
ASSERT,
|
|
EXCEPTION
|
|
};
|
|
|
|
static int CALLBACK dlgproc(HWND hDlg, unsigned int msg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
switch(msg)
|
|
{
|
|
// return TRUE to set default keyboard focus
|
|
case WM_INITDIALOG:
|
|
{
|
|
DialogType type = (DialogType)lParam;
|
|
|
|
// disable inappropriate buttons
|
|
if(type != ASSERT)
|
|
{
|
|
HWND h;
|
|
h = GetDlgItem(hDlg, IDC_CONTINUE);
|
|
EnableWindow(h, FALSE);
|
|
h = GetDlgItem(hDlg, IDC_SUPPRESS);
|
|
EnableWindow(h, FALSE);
|
|
h = GetDlgItem(hDlg, IDC_BREAK);
|
|
EnableWindow(h, FALSE);
|
|
}
|
|
|
|
SetDlgItemTextW(hDlg, IDC_EDIT1, buf);
|
|
return TRUE;
|
|
}
|
|
|
|
// return 0 if processed, otherwise break
|
|
case WM_SYSCOMMAND:
|
|
// close dialog if [X] is clicked (doesn't happen automatically)
|
|
// note: lower 4 bits are reserved
|
|
if((wParam & 0xFFF0) == SC_CLOSE)
|
|
{
|
|
EndDialog(hDlg, 0);
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
// return 0 if processed, otherwise break
|
|
case WM_COMMAND:
|
|
switch(wParam)
|
|
{
|
|
case IDC_COPY:
|
|
clipboard_set(buf);
|
|
return 0;
|
|
|
|
case IDC_CONTINUE: // 2000
|
|
case IDC_SUPPRESS:
|
|
case IDC_BREAK: // 2002
|
|
EndDialog(hDlg, wParam-2000);
|
|
return 0;
|
|
|
|
case IDC_EXIT:
|
|
exit(0);
|
|
return 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// we didn't process the message; caller will perform default action.
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
// show error dialog, with stack trace (must be stored in buf[])
|
|
// exits directly if 'exit' is clicked.
|
|
//
|
|
// return values:
|
|
// 0 - continue
|
|
// 1 - suppress
|
|
// 2 - break
|
|
|
|
static int dialog(DialogType type)
|
|
{
|
|
// we don't know if the enclosing app even has a Window.
|
|
const HWND hParent = GetDesktopWindow();
|
|
return (int)DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), hParent, dlgproc, (LPARAM)type);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
|
|
static PTOP_LEVEL_EXCEPTION_FILTER prev_except_filter;
|
|
|
|
static long CALLBACK except_filter(EXCEPTION_POINTERS* except)
|
|
{
|
|
PEXCEPTION_RECORD except_record = except->ExceptionRecord;
|
|
uintptr_t addr = (uintptr_t)except_record->ExceptionAddress;
|
|
|
|
DWORD code = except_record->ExceptionCode;
|
|
const char* except_str;
|
|
#define X(e) case EXCEPTION_##e: except_str = #e; break;
|
|
switch(code)
|
|
{
|
|
X(ACCESS_VIOLATION)
|
|
X(DATATYPE_MISALIGNMENT)
|
|
X(BREAKPOINT)
|
|
X(SINGLE_STEP)
|
|
X(ARRAY_BOUNDS_EXCEEDED)
|
|
X(FLT_DENORMAL_OPERAND)
|
|
X(FLT_DIVIDE_BY_ZERO)
|
|
X(FLT_INEXACT_RESULT)
|
|
X(FLT_INVALID_OPERATION)
|
|
X(FLT_OVERFLOW)
|
|
X(FLT_STACK_CHECK)
|
|
X(FLT_UNDERFLOW)
|
|
X(INT_DIVIDE_BY_ZERO)
|
|
X(INT_OVERFLOW)
|
|
X(PRIV_INSTRUCTION)
|
|
X(IN_PAGE_ERROR)
|
|
X(ILLEGAL_INSTRUCTION)
|
|
X(NONCONTINUABLE_EXCEPTION)
|
|
X(STACK_OVERFLOW)
|
|
X(INVALID_DISPOSITION)
|
|
X(GUARD_PAGE)
|
|
X(INVALID_HANDLE)
|
|
default:
|
|
except_str = "(unknown)";
|
|
}
|
|
#undef X
|
|
|
|
MEMORY_BASIC_INFORMATION mbi;
|
|
char module_buf[100];
|
|
const char* module = "???";
|
|
uintptr_t base = 0;
|
|
|
|
if(VirtualQuery((void*)addr, &mbi, sizeof(mbi)))
|
|
{
|
|
base = (uintptr_t)mbi.AllocationBase;
|
|
if(GetModuleFileName((HMODULE)base, module_buf, sizeof(module_buf)))
|
|
module = strrchr(module_buf, '\\')+1;
|
|
// GetModuleFileName returns fully qualified path =>
|
|
// trailing '\\' exists
|
|
}
|
|
|
|
|
|
pos = buf;
|
|
out(L"Exception %hs at %hs!%08lX\r\n", except_str, module, addr-base);
|
|
dump_stack(0, except->ContextRecord);
|
|
|
|
dialog(EXCEPTION);
|
|
|
|
if(prev_except_filter)
|
|
return prev_except_filter(except);
|
|
|
|
return EXCEPTION_CONTINUE_EXECUTION;
|
|
}
|
|
|
|
|
|
static void set_exception_handler()
|
|
{
|
|
prev_except_filter = SetUnhandledExceptionFilter(except_filter);
|
|
}
|
|
|
|
|
|
|
|
#ifdef LOCALISED_TEXT
|
|
|
|
// Split this into a separate function because destructors and __try don't mix
|
|
void i18n_display_fatal_msg(const wchar_t* errortext) {
|
|
CStrW title = translate(L"Pyrogenesis Failure");
|
|
CStrW message = translate(L"A fatal error has occurred: $msg. Please report this to http://bugs.wildfiregames.com/ and attach the crashlog.txt and crashlog.dmp files from your 'data' folder.") << I18n::Raw(errortext);
|
|
wdisplay_msg(title.c_str(), message.c_str());
|
|
}
|
|
|
|
#endif // LOCALISED_TEXT
|
|
|
|
// PT: Alternate version of the exception handler, which makes
|
|
// the crash log more useful, and takes the responsibility of
|
|
// suiciding away from main.cpp.
|
|
|
|
void abort_timer(); // from wtime.cpp
|
|
|
|
int debug_main_exception_filter(unsigned int UNUSEDPARAM(code), PEXCEPTION_POINTERS ep)
|
|
{
|
|
// If something crashes after we've already crashed (i.e. when shutting
|
|
// down everything), don't bother logging it, because the first crash
|
|
// is the most important one to fix.
|
|
static bool already_crashed = false;
|
|
if (already_crashed)
|
|
{
|
|
return EXCEPTION_EXECUTE_HANDLER;
|
|
}
|
|
already_crashed = true;
|
|
|
|
// The timer thread sometimes dies from EXCEPTION_PRIV_INSTRUCTION
|
|
// when debugging this exception handler code (which gets quite
|
|
// annoying), so kill it before it gets a chance.
|
|
__try
|
|
{
|
|
abort_timer();
|
|
}
|
|
__except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
}
|
|
|
|
const wchar_t* error = NULL;
|
|
|
|
// C++ exceptions put a pointer to the exception object
|
|
// into ExceptionInformation[1] -- so see if it looks like
|
|
// a PSERROR*, and use the relevant message if it is.
|
|
__try
|
|
{
|
|
if (ep->ExceptionRecord->NumberParameters == 3)
|
|
{
|
|
/*/*
|
|
PSERROR* err = (PSERROR*) ep->ExceptionRecord->ExceptionInformation[1];
|
|
if (err->magic == 0x45725221)
|
|
{
|
|
int code = err->code;
|
|
error = GetErrorString(code);
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
__except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
// Presumably it wasn't a PSERROR and resulted in
|
|
// accessing invalid memory locations.
|
|
error = NULL;
|
|
}
|
|
|
|
// Try getting nice names for other types of error:
|
|
if (! error)
|
|
{
|
|
switch (ep->ExceptionRecord->ExceptionCode)
|
|
{
|
|
case EXCEPTION_ACCESS_VIOLATION: error = L"Access violation"; break;
|
|
case EXCEPTION_DATATYPE_MISALIGNMENT: error = L"Datatype misalignment"; break;
|
|
case EXCEPTION_BREAKPOINT: error = L"Breakpoint"; break;
|
|
case EXCEPTION_SINGLE_STEP: error = L"Single step"; break;
|
|
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: error = L"Array bounds exceeded"; break;
|
|
case EXCEPTION_FLT_DENORMAL_OPERAND: error = L"Float denormal operand"; break;
|
|
case EXCEPTION_FLT_DIVIDE_BY_ZERO: error = L"Float divide by zero"; break;
|
|
case EXCEPTION_FLT_INEXACT_RESULT: error = L"Float inexact result"; break;
|
|
case EXCEPTION_FLT_INVALID_OPERATION: error = L"Float invalid operation"; break;
|
|
case EXCEPTION_FLT_OVERFLOW: error = L"Float overflow"; break;
|
|
case EXCEPTION_FLT_STACK_CHECK: error = L"Float stack check"; break;
|
|
case EXCEPTION_FLT_UNDERFLOW: error = L"Float underflow"; break;
|
|
case EXCEPTION_INT_DIVIDE_BY_ZERO: error = L"Integer divide by zero"; break;
|
|
case EXCEPTION_INT_OVERFLOW: error = L"Integer overflow"; break;
|
|
case EXCEPTION_PRIV_INSTRUCTION: error = L"Privileged instruction"; break;
|
|
case EXCEPTION_IN_PAGE_ERROR: error = L"In page error"; break;
|
|
case EXCEPTION_ILLEGAL_INSTRUCTION: error = L"Illegal instruction"; break;
|
|
case EXCEPTION_NONCONTINUABLE_EXCEPTION:error = L"Noncontinuable exception"; break;
|
|
case EXCEPTION_STACK_OVERFLOW: error = L"Stack overflow"; break;
|
|
case EXCEPTION_INVALID_DISPOSITION: error = L"Invalid disposition"; break;
|
|
case EXCEPTION_GUARD_PAGE: error = L"Guard page"; break;
|
|
case EXCEPTION_INVALID_HANDLE: error = L"Invalid handle"; break;
|
|
default: error = L"[unknown exception]";
|
|
}
|
|
}
|
|
|
|
wchar_t* errortext = (wchar_t*) error;
|
|
|
|
// Handle access violations specially, because we can see
|
|
// whether and where they were reading/writing.
|
|
if (ep->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
|
|
{
|
|
errortext = new wchar_t[256];
|
|
if (ep->ExceptionRecord->ExceptionInformation[0])
|
|
swprintf(errortext, 256, L"Access violation writing 0x%08X", ep->ExceptionRecord->ExceptionInformation[1]);
|
|
else
|
|
swprintf(errortext, 256, L"Access violation reading 0x%08X", ep->ExceptionRecord->ExceptionInformation[1]);
|
|
}
|
|
|
|
bool localised_successfully = false;
|
|
#ifdef LOCALISED_TEXT
|
|
|
|
// In case this is called before/after the i18n system is
|
|
// alive, make sure it's actually a valid pointer
|
|
if (g_CurrentLocale)
|
|
{
|
|
__try
|
|
{
|
|
i18n_display_fatal_msg(errortext);
|
|
localised_successfully = true;
|
|
}
|
|
__except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
}
|
|
}
|
|
#endif // LOCALISED_TEXT
|
|
if (!localised_successfully)
|
|
{
|
|
wchar_t message[1024];
|
|
swprintf(message, 1024, L"A fatal error has occurred: %ls.\nPlease report this to http://bugs.wildfiregames.com/ and attach the crashlog.txt and crashlog.dmp files from your 'data' folder.", errortext);
|
|
message[1023] = 0;
|
|
|
|
wdisplay_msg(L"Pyrogenesis failure", message);
|
|
}
|
|
|
|
|
|
__try
|
|
{
|
|
debug_write_crashlog("crashlog.txt", errortext, ep->ContextRecord);
|
|
}
|
|
__except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
wdisplay_msg(L"Pyrogenesis failure", L"Error generating crash log.");
|
|
}
|
|
|
|
__try
|
|
{
|
|
HANDLE hFile = CreateFile("crashlog.dmp", GENERIC_WRITE, FILE_SHARE_WRITE, 0, CREATE_ALWAYS, 0, 0);
|
|
if (hFile == INVALID_HANDLE_VALUE) throw;
|
|
DumpMiniDump(hFile, ep);
|
|
CloseHandle(hFile);
|
|
}
|
|
__except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
wdisplay_msg(L"Pyrogenesis failure", L"Error generating crash dump.");
|
|
}
|
|
|
|
// Disable memory-leak reporting, because it's going to
|
|
// leak like a bucket with a missing bottom when it crashes.
|
|
#ifdef HAVE_DEBUGALLOC
|
|
uint flags = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
|
|
_CrtSetDbgFlag(flags & ~_CRTDBG_LEAK_CHECK_DF);
|
|
#endif
|
|
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int debug_assert_failed(const char* file, int line, const char* expr)
|
|
{
|
|
pos = buf;
|
|
out(L"Assertion failed in %hs, line %d: \"%hs\"\r\n", file, line, expr);
|
|
dump_stack(1); // skip this function's frame
|
|
|
|
return dialog(ASSERT);
|
|
}
|
|
|
|
|
|
|
|
|
|
// from http://www.codeproject.com/debug/XCrashReportPt3.asp
|
|
static void DumpMiniDump(HANDLE hFile, PEXCEPTION_POINTERS excpInfo)
|
|
{
|
|
/*
|
|
if (excpInfo == NULL)
|
|
{
|
|
// Generate exception to get proper context in dump
|
|
__try
|
|
{
|
|
OutputDebugString("RaiseException for MinidumpWriteDump\n");
|
|
RaiseException(EXCEPTION_BREAKPOINT, 0, 0, NULL);
|
|
}
|
|
__except(DumpMiniDump(hFile, GetExceptionInformation()), EXCEPTION_CONTINUE_EXECUTION)
|
|
{
|
|
}
|
|
}
|
|
else
|
|
{*/
|
|
MINIDUMP_EXCEPTION_INFORMATION eInfo;
|
|
eInfo.ThreadId = GetCurrentThreadId();
|
|
eInfo.ExceptionPointers = excpInfo;
|
|
eInfo.ClientPointers = FALSE;
|
|
|
|
// TODO: Store the crashlog.txt inside the UserStreamParam
|
|
// so that people only have to send us one file?
|
|
|
|
// note: MiniDumpWithIndirectlyReferencedMemory does not work on Win98
|
|
if (!MiniDumpWriteDump(
|
|
GetCurrentProcess(),
|
|
GetCurrentProcessId(),
|
|
hFile,
|
|
MiniDumpNormal,
|
|
excpInfo ? &eInfo : NULL,
|
|
NULL,
|
|
NULL))
|
|
{
|
|
throw; // fail noisily
|
|
}
|
|
// }
|
|
}
|
|
|
|
static void cat_atow(FILE* in, FILE* out)
|
|
{
|
|
const int bufsize = 1024;
|
|
char buffer[bufsize+1]; // bufsize+1 so there's space for a \0 at the end
|
|
while (!feof(in))
|
|
{
|
|
int r = (int)fread(buffer, 1, bufsize, in);
|
|
if (!r) break;
|
|
buffer[r] = 0; // ensure proper NULLness
|
|
fwprintf(out, L"%hs", buffer);
|
|
}
|
|
}
|
|
|
|
// Imported from sysdep.cpp
|
|
extern wchar_t MicroBuffer[];
|
|
extern size_t MicroBuffer_off;
|
|
|
|
int debug_write_crashlog(const char* file, const wchar_t* header, void* ctx)
|
|
{
|
|
pos = buf;
|
|
out(L"Undefined state reached.\r\n");
|
|
|
|
CONTEXT* context = (CONTEXT*)ctx;
|
|
const uint skip = context? 0 : 2;
|
|
dump_stack(skip, context);
|
|
|
|
FILE* f = fopen(file, "wb");
|
|
u16 BOM = 0xFEFF;
|
|
fwrite(&BOM, 2, 1, f);
|
|
if (header)
|
|
{
|
|
fwrite(header, wcslen(header), sizeof(wchar_t), f);
|
|
fwrite(L"\r\n\r\n", 4, sizeof(wchar_t), f);
|
|
}
|
|
fwrite(buf, pos-buf, 2, f);
|
|
|
|
const wchar_t* divider = L"\r\n\r\n====================================\r\n\r\n";
|
|
|
|
fwrite(divider, wcslen(divider), sizeof(wchar_t), f);
|
|
|
|
// HACK: Insert the contents from a couple of other log files
|
|
// and one memory log. These really ought to be integrated better.
|
|
|
|
// Copy the contents of ../logs/systeminfo.txt
|
|
FILE* in;
|
|
in = fopen("../logs/system_info.txt", "rb");
|
|
if (in)
|
|
{
|
|
fwprintf(f, L"System info:\r\n\r\n");
|
|
cat_atow(in, f);
|
|
fclose(in);
|
|
}
|
|
|
|
fwrite(divider, wcslen(divider), sizeof(wchar_t), f);
|
|
|
|
// Copy the contents of ../logs/mainlog.html
|
|
in = fopen("../logs/mainlog.html", "rb");
|
|
if (in)
|
|
{
|
|
fwprintf(f, L"Main log:\r\n\r\n");
|
|
cat_atow(in, f);
|
|
fclose(in);
|
|
}
|
|
|
|
fwrite(divider, wcslen(divider), sizeof(wchar_t), f);
|
|
|
|
fwprintf(f, L"Last known activity:\r\n\r\n");
|
|
fwrite(MicroBuffer, MicroBuffer_off, sizeof(wchar_t), f);
|
|
fclose(f);
|
|
|
|
return 0;
|
|
} |