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wine/programs/winedbg/tgt_minidump.c

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/*
* Wine debugger - minidump handling
*
* Copyright 2005 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "debugger.h"
#include "wingdi.h"
#include "winuser.h"
#include "tlhelp32.h"
#include "wine/debug.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
static struct be_process_io be_process_minidump_io;
/* we need this function on 32bit hosts to ensure we zero out the higher DWORD
* stored in the minidump file (sometimes it's not cleared, or the conversion from
* 32bit to 64bit wide integers is done as signed, which is wrong)
* So we clamp on 32bit CPUs (as stored in minidump information) all addresses to
* keep only the lower 32 bits.
* FIXME: as of today, since we don't support a backend CPU which is different from
* CPU this process is running on, casting to (DWORD_PTR) will do just fine.
*/
static inline DWORD64 get_addr64(DWORD64 addr)
{
return (DWORD_PTR)addr;
}
void minidump_write(const char* file, const EXCEPTION_RECORD* rec)
{
HANDLE hFile;
MINIDUMP_EXCEPTION_INFORMATION mei;
EXCEPTION_POINTERS ep;
hFile = CreateFileA(file, GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) return;
if (rec)
{
mei.ThreadId = dbg_curr_thread->tid;
mei.ExceptionPointers = &ep;
ep.ExceptionRecord = (EXCEPTION_RECORD*)rec;
ep.ContextRecord = &dbg_context;
mei.ClientPointers = FALSE;
}
MiniDumpWriteDump(dbg_curr_process->handle, dbg_curr_process->pid,
hFile, MiniDumpNormal/*|MiniDumpWithDataSegs*/,
rec ? &mei : NULL, NULL, NULL);
CloseHandle(hFile);
}
#define Wine_ElfModuleListStream 0xFFF0
struct tgt_process_minidump_data
{
void* mapping;
HANDLE hFile;
HANDLE hMap;
};
static inline struct tgt_process_minidump_data* private_data(struct dbg_process* pcs)
{
return pcs->pio_data;
}
static BOOL tgt_process_minidump_read(HANDLE hProcess, const void* addr,
void* buffer, SIZE_T len, SIZE_T* rlen)
{
void* stream;
if (!private_data(dbg_curr_process)->mapping) return FALSE;
if (MiniDumpReadDumpStream(private_data(dbg_curr_process)->mapping,
MemoryListStream, NULL, &stream, NULL))
{
MINIDUMP_MEMORY_LIST* mml = stream;
MINIDUMP_MEMORY_DESCRIPTOR* mmd = &mml->MemoryRanges[0];
int i;
for (i = 0; i < mml->NumberOfMemoryRanges; i++, mmd++)
{
if (get_addr64(mmd->StartOfMemoryRange) <= (DWORD_PTR)addr &&
(DWORD_PTR)addr < get_addr64(mmd->StartOfMemoryRange) + mmd->Memory.DataSize)
{
len = min(len,
get_addr64(mmd->StartOfMemoryRange) + mmd->Memory.DataSize - (DWORD_PTR)addr);
memcpy(buffer,
(char*)private_data(dbg_curr_process)->mapping + mmd->Memory.Rva + (DWORD_PTR)addr - get_addr64(mmd->StartOfMemoryRange),
len);
if (rlen) *rlen = len;
return TRUE;
}
}
}
/* FIXME: this is a dirty hack to let the last frame in a bt to work
* However, we need to check who's to blame, this code or the current
* dbghelp!StackWalk implementation
*/
if ((DWORD_PTR)addr < 32)
{
memset(buffer, 0, len);
if (rlen) *rlen = len;
return TRUE;
}
return FALSE;
}
static BOOL tgt_process_minidump_write(HANDLE hProcess, void* addr,
const void* buffer, SIZE_T len, SIZE_T* wlen)
{
return FALSE;
}
static BOOL CALLBACK validate_file(PCWSTR name, void* user)
{
return FALSE; /* get the first file we find !! */
}
static BOOL is_pe_module_embedded(struct tgt_process_minidump_data* data,
MINIDUMP_MODULE* pe_mm)
{
MINIDUMP_MODULE_LIST* mml;
if (MiniDumpReadDumpStream(data->mapping, Wine_ElfModuleListStream, NULL,
(void**)&mml, NULL))
{
MINIDUMP_MODULE* mm;
unsigned i;
for (i = 0, mm = &mml->Modules[0]; i < mml->NumberOfModules; i++, mm++)
{
if (get_addr64(mm->BaseOfImage) <= get_addr64(pe_mm->BaseOfImage) &&
get_addr64(mm->BaseOfImage) + mm->SizeOfImage >= get_addr64(pe_mm->BaseOfImage) + pe_mm->SizeOfImage)
return TRUE;
}
}
return FALSE;
}
static enum dbg_start minidump_do_reload(struct tgt_process_minidump_data* data)
{
void* stream;
DWORD pid = 1; /* by default */
HANDLE hProc = (HANDLE)0x900DBAAD;
int i;
MINIDUMP_MODULE_LIST* mml;
MINIDUMP_MODULE* mm;
MINIDUMP_STRING* mds;
WCHAR exec_name[1024];
WCHAR nameW[1024];
unsigned len;
static WCHAR default_exec_name[] = {'<','m','i','n','i','d','u','m','p','-','e','x','e','c','>',0};
/* fetch PID */
if (MiniDumpReadDumpStream(data->mapping, MiscInfoStream, NULL, &stream, NULL))
{
MINIDUMP_MISC_INFO* mmi = stream;
if (mmi->Flags1 & MINIDUMP_MISC1_PROCESS_ID)
pid = mmi->ProcessId;
}
/* fetch executable name (it's normally the first one in module list) */
lstrcpyW(exec_name, default_exec_name);
if (MiniDumpReadDumpStream(data->mapping, ModuleListStream, NULL, &stream, NULL))
{
mml = stream;
if (mml->NumberOfModules)
{
WCHAR* ptr;
mm = &mml->Modules[0];
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
len = mds->Length / 2;
memcpy(exec_name, mds->Buffer, mds->Length);
exec_name[len] = 0;
for (ptr = exec_name + len - 1; ptr >= exec_name; ptr--)
{
if (*ptr == '/' || *ptr == '\\')
{
memmove(exec_name, ptr + 1, (lstrlenW(ptr + 1) + 1) * sizeof(WCHAR));
break;
}
}
}
}
if (MiniDumpReadDumpStream(data->mapping, SystemInfoStream, NULL, &stream, NULL))
{
MINIDUMP_SYSTEM_INFO* msi = stream;
const char *str;
char tmp[128];
dbg_printf("WineDbg starting on minidump on pid %04x\n", pid);
switch (msi->ProcessorArchitecture)
{
case PROCESSOR_ARCHITECTURE_UNKNOWN:
str = "Unknown";
break;
case PROCESSOR_ARCHITECTURE_INTEL:
strcpy(tmp, "Intel ");
switch (msi->ProcessorLevel)
{
case 3: str = "80386"; break;
case 4: str = "80486"; break;
case 5: str = "Pentium"; break;
case 6: str = "Pentium Pro/II or AMD Athlon"; break;
case 15: str = "Pentium 4 or AMD Athlon64"; break;
default: str = "???"; break;
}
strcat(tmp, str);
if (msi->ProcessorLevel == 3 || msi->ProcessorLevel == 4)
{
if (HIBYTE(msi->ProcessorRevision) == 0xFF)
sprintf(tmp + strlen(tmp), " (%c%d)",
'A' + ((msi->ProcessorRevision>>4)&0xf)-0x0a,
((msi->ProcessorRevision&0xf)));
else
sprintf(tmp + strlen(tmp), " (%c%d)",
'A' + HIBYTE(msi->ProcessorRevision),
LOBYTE(msi->ProcessorRevision));
}
else sprintf(tmp + strlen(tmp), " (%d.%d)",
HIBYTE(msi->ProcessorRevision),
LOBYTE(msi->ProcessorRevision));
str = tmp;
break;
case PROCESSOR_ARCHITECTURE_MIPS:
str = "Mips";
break;
case PROCESSOR_ARCHITECTURE_ALPHA:
str = "Alpha";
break;
case PROCESSOR_ARCHITECTURE_PPC:
str = "PowerPC";
break;
case PROCESSOR_ARCHITECTURE_AMD64:
str = "X86_64";
break;
case PROCESSOR_ARCHITECTURE_ARM:
str = "ARM";
break;
default:
str = "???";
break;
}
dbg_printf(" %s was running on #%d %s CPU%s",
dbg_W2A(exec_name, -1), msi->u.s.NumberOfProcessors, str,
msi->u.s.NumberOfProcessors < 2 ? "" : "s");
switch (msi->MajorVersion)
{
case 3:
switch (msi->MinorVersion)
{
case 51: str = "NT 3.51"; break;
default: str = "3-????"; break;
}
break;
case 4:
switch (msi->MinorVersion)
{
case 0: str = (msi->PlatformId == VER_PLATFORM_WIN32_NT) ? "NT 4.0" : "95"; break;
case 10: str = "98"; break;
case 90: str = "ME"; break;
default: str = "5-????"; break;
}
break;
case 5:
switch (msi->MinorVersion)
{
case 0: str = "2000"; break;
case 1: str = "XP"; break;
case 2: str = "Server 2003"; break;
default: str = "5-????"; break;
}
break;
default: str = "???"; break;
}
dbg_printf(" on Windows %s (%u)\n", str, msi->BuildNumber);
/* FIXME CSD: msi->CSDVersionRva */
}
dbg_curr_process = dbg_add_process(&be_process_minidump_io, pid, hProc);
dbg_curr_pid = pid;
dbg_curr_process->pio_data = data;
dbg_set_process_name(dbg_curr_process, exec_name);
dbg_init(hProc, NULL, FALSE);
if (MiniDumpReadDumpStream(data->mapping, ThreadListStream, NULL, &stream, NULL))
{
MINIDUMP_THREAD_LIST* mtl = stream;
ULONG i;
for (i = 0; i < mtl->NumberOfThreads; i++)
{
dbg_add_thread(dbg_curr_process, mtl->Threads[i].ThreadId, NULL,
(void*)(DWORD_PTR)get_addr64(mtl->Threads[i].Teb));
}
}
/* first load ELF modules, then do the PE ones */
if (MiniDumpReadDumpStream(data->mapping, Wine_ElfModuleListStream, NULL,
&stream, NULL))
{
WCHAR buffer[MAX_PATH];
mml = stream;
for (i = 0, mm = &mml->Modules[0]; i < mml->NumberOfModules; i++, mm++)
{
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
memcpy(nameW, mds->Buffer, mds->Length);
nameW[mds->Length / sizeof(WCHAR)] = 0;
if (SymFindFileInPathW(hProc, NULL, nameW, (void*)(DWORD_PTR)mm->CheckSum,
0, 0, SSRVOPT_DWORD, buffer, validate_file, NULL))
dbg_load_module(hProc, NULL, buffer, get_addr64(mm->BaseOfImage),
mm->SizeOfImage);
else
SymLoadModuleExW(hProc, NULL, nameW, NULL, get_addr64(mm->BaseOfImage),
mm->SizeOfImage, NULL, SLMFLAG_VIRTUAL);
}
}
if (MiniDumpReadDumpStream(data->mapping, ModuleListStream, NULL, &stream, NULL))
{
WCHAR buffer[MAX_PATH];
mml = stream;
for (i = 0, mm = &mml->Modules[0]; i < mml->NumberOfModules; i++, mm++)
{
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
memcpy(nameW, mds->Buffer, mds->Length);
nameW[mds->Length / sizeof(WCHAR)] = 0;
if (SymFindFileInPathW(hProc, NULL, nameW, (void*)(DWORD_PTR)mm->TimeDateStamp,
mm->SizeOfImage, 0, SSRVOPT_DWORD, buffer, validate_file, NULL))
dbg_load_module(hProc, NULL, buffer, get_addr64(mm->BaseOfImage),
mm->SizeOfImage);
else if (is_pe_module_embedded(data, mm))
dbg_load_module(hProc, NULL, nameW, get_addr64(mm->BaseOfImage),
mm->SizeOfImage);
else
SymLoadModuleExW(hProc, NULL, nameW, NULL, get_addr64(mm->BaseOfImage),
mm->SizeOfImage, NULL, SLMFLAG_VIRTUAL);
}
}
if (MiniDumpReadDumpStream(data->mapping, ExceptionStream, NULL, &stream, NULL))
{
MINIDUMP_EXCEPTION_STREAM* mes = stream;
if ((dbg_curr_thread = dbg_get_thread(dbg_curr_process, mes->ThreadId)))
{
ADDRESS64 addr;
dbg_curr_tid = mes->ThreadId;
dbg_curr_thread->in_exception = TRUE;
dbg_curr_thread->excpt_record.ExceptionCode = mes->ExceptionRecord.ExceptionCode;
dbg_curr_thread->excpt_record.ExceptionFlags = mes->ExceptionRecord.ExceptionFlags;
dbg_curr_thread->excpt_record.ExceptionRecord = (void*)(DWORD_PTR)get_addr64(mes->ExceptionRecord.ExceptionRecord);
dbg_curr_thread->excpt_record.ExceptionAddress = (void*)(DWORD_PTR)get_addr64(mes->ExceptionRecord.ExceptionAddress);
dbg_curr_thread->excpt_record.NumberParameters = mes->ExceptionRecord.NumberParameters;
for (i = 0; i < dbg_curr_thread->excpt_record.NumberParameters; i++)
{
dbg_curr_thread->excpt_record.ExceptionInformation[i] = mes->ExceptionRecord.ExceptionInformation[i];
}
memcpy(&dbg_context, (char*)data->mapping + mes->ThreadContext.Rva,
min(sizeof(dbg_context), mes->ThreadContext.DataSize));
memory_get_current_pc(&addr);
stack_fetch_frames(&dbg_context);
be_cpu->print_context(dbg_curr_thread->handle, &dbg_context, 0);
stack_info(-1);
be_cpu->print_segment_info(dbg_curr_thread->handle, &dbg_context);
stack_backtrace(mes->ThreadId);
source_list_from_addr(&addr, 0);
}
}
return start_ok;
}
static void cleanup(struct tgt_process_minidump_data* data)
{
if (data->mapping) UnmapViewOfFile(data->mapping);
if (data->hMap) CloseHandle(data->hMap);
if (data->hFile != INVALID_HANDLE_VALUE) CloseHandle(data->hFile);
HeapFree(GetProcessHeap(), 0, data);
}
static struct be_process_io be_process_minidump_io;
enum dbg_start minidump_reload(int argc, char* argv[])
{
struct tgt_process_minidump_data* data;
enum dbg_start ret = start_error_parse;
/* try the form <myself> minidump-file */
if (argc != 1) return start_error_parse;
WINE_TRACE("Processing Minidump file %s\n", argv[0]);
data = HeapAlloc(GetProcessHeap(), 0, sizeof(struct tgt_process_minidump_data));
if (!data) return start_error_init;
data->mapping = NULL;
data->hMap = NULL;
data->hFile = INVALID_HANDLE_VALUE;
if ((data->hFile = CreateFileA(argv[0], GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) != INVALID_HANDLE_VALUE &&
((data->hMap = CreateFileMappingA(data->hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != 0) &&
((data->mapping = MapViewOfFile(data->hMap, FILE_MAP_READ, 0, 0, 0)) != NULL))
{
__TRY
{
if (((MINIDUMP_HEADER*)data->mapping)->Signature == MINIDUMP_SIGNATURE)
{
ret = minidump_do_reload(data);
}
}
__EXCEPT_PAGE_FAULT
{
dbg_printf("Unexpected fault while reading minidump %s\n", argv[0]);
dbg_curr_pid = 0;
}
__ENDTRY;
}
if (ret != start_ok) cleanup(data);
return ret;
}
static BOOL tgt_process_minidump_close_process(struct dbg_process* pcs, BOOL kill)
{
struct tgt_process_minidump_data* data = private_data(pcs);
cleanup(data);
pcs->pio_data = NULL;
SymCleanup(pcs->handle);
dbg_del_process(pcs);
return TRUE;
}
static BOOL tgt_process_minidump_get_selector(HANDLE hThread, DWORD sel, LDT_ENTRY* le)
{
/* so far, pretend all selectors are valid, and mapped to a 32bit flat address space */
memset(le, 0, sizeof(*le));
le->HighWord.Bits.Default_Big = 1;
return TRUE;
}
static struct be_process_io be_process_minidump_io =
{
tgt_process_minidump_close_process,
tgt_process_minidump_read,
tgt_process_minidump_write,
tgt_process_minidump_get_selector,
};
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