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winedbg: Add ability to reload a minidump.

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- now recognize winedbg foo.mdmp on command line
- fleshed out tgt_minidump to reload information from minidump
This commit is contained in:
Eric Pouech 2006-03-01 21:05:35 +01:00 committed by Alexandre Julliard
parent c918e80ed2
commit 348067a9bf
4 changed files with 385 additions and 3 deletions
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3
programs/winedbg/debugger.h
View File

@ -202,6 +202,7 @@ struct dbg_process
HANDLE handle;
DWORD pid;
const struct be_process_io* process_io;
void* pio_data;
const char* imageName;
struct dbg_thread* threads;
unsigned continue_on_first_exception;
@ -379,6 +380,7 @@ extern BOOL dbg_attach_debuggee(DWORD pid, BOOL cofe, BOOL wfe);
/* tgt_minidump.c */
extern void minidump_write(const char*, const EXCEPTION_RECORD*);
extern enum dbg_start minidump_reload(int argc, char* argv[]);
/* types.c */
extern void print_value(const struct dbg_lvalue* addr, char format, int level);
@ -406,6 +408,7 @@ extern BOOL dbg_interrupt_debuggee(void);
extern struct dbg_process* dbg_add_process(const struct be_process_io* pio, DWORD pid, HANDLE h);
extern void dbg_set_process_name(struct dbg_process* p, const char* name);
extern struct dbg_process* dbg_get_process(DWORD pid);
extern struct dbg_process* dbg_get_process_h(HANDLE handle);
extern void dbg_del_process(struct dbg_process* p);
struct dbg_thread* dbg_add_thread(struct dbg_process* p, DWORD tid, HANDLE h, void* teb);
extern struct dbg_thread* dbg_get_thread(struct dbg_process* p, DWORD tid);

11
programs/winedbg/stack.c
View File

@ -123,6 +123,15 @@ BOOL stack_get_current_symbol(SYMBOL_INFO* symbol)
return SymFromAddr(dbg_curr_process->handle, ihsf.InstructionOffset,
&disp, symbol);
}
static BOOL CALLBACK stack_read_mem(HANDLE hProc, DWORD addr,
PVOID buffer, DWORD size, PDWORD written)
{
struct dbg_process* pcs = dbg_get_process_h(hProc);
if (!pcs) return FALSE;
return pcs->process_io->read(hProc, (const void*)addr, buffer, size, written);
}
/******************************************************************
* stack_fetch_frames
*
@ -148,7 +157,7 @@ unsigned stack_fetch_frames(void)
}
while (StackWalk(IMAGE_FILE_MACHINE_I386, dbg_curr_process->handle,
dbg_curr_thread->handle, &sf, &dbg_context, NULL,
dbg_curr_thread->handle, &sf, &dbg_context, stack_read_mem,
SymFunctionTableAccess, SymGetModuleBase, NULL))
{
dbg_curr_thread->frames = dbg_heap_realloc(dbg_curr_thread->frames,

358
programs/winedbg/tgt_minidump.c
View File

@ -33,9 +33,12 @@
#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;
void minidump_write(const char* file, const EXCEPTION_RECORD* rec)
{
HANDLE hFile;
@ -66,3 +69,358 @@ void minidump_write(const char* file, const EXCEPTION_RECORD* rec)
SymSetOptions(wine_opt);
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(struct dbg_process* pcs)
{
return (struct tgt_process_minidump_data*)pcs->pio_data;
}
static BOOL WINAPI tgt_process_minidump_read(HANDLE hProcess, const void* addr,
void* buffer, DWORD len, DWORD* rlen)
{
ULONG size;
MINIDUMP_DIRECTORY* dir;
void* stream;
if (!PRIVATE(dbg_curr_process)->mapping) return FALSE;
if (MiniDumpReadDumpStream(PRIVATE(dbg_curr_process)->mapping,
MemoryListStream, &dir, &stream, &size))
{
MINIDUMP_MEMORY_LIST* mml = (MINIDUMP_MEMORY_LIST*)stream;
MINIDUMP_MEMORY_DESCRIPTOR* mmd = &mml->MemoryRanges[0];
int i;
for (i = 0; i < mml->NumberOfMemoryRanges; i++, mmd++)
{
if (mmd->StartOfMemoryRange <= (DWORD_PTR)addr &&
(DWORD_PTR)addr < mmd->StartOfMemoryRange + mmd->Memory.DataSize)
{
len = min(len, mmd->StartOfMemoryRange + mmd->Memory.DataSize - (DWORD_PTR)addr);
memcpy(buffer,
(char*)PRIVATE(dbg_curr_process)->mapping + mmd->Memory.Rva + (DWORD_PTR)addr - 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 WINAPI tgt_process_minidump_write(HANDLE hProcess, void* addr,
const void* buffer, DWORD len, DWORD* wlen)
{
return FALSE;
}
BOOL CALLBACK validate_file(PSTR name, void* user)
{
return FALSE; /* get the first file we find !! */
}
static enum dbg_start minidump_do_reload(struct tgt_process_minidump_data* data)
{
ULONG size;
MINIDUMP_DIRECTORY* dir;
void* stream;
DWORD pid = 1; /* by default */
HANDLE hProc = (HANDLE)0x900DBAAD;
int i;
MINIDUMP_MODULE_LIST* mml;
MINIDUMP_MODULE* mm;
MINIDUMP_STRING* mds;
char exec_name[1024];
char name[1024];
unsigned len;
/* fetch PID */
if (MiniDumpReadDumpStream(data->mapping, MiscInfoStream, &dir, &stream, &size))
{
MINIDUMP_MISC_INFO* mmi = (MINIDUMP_MISC_INFO*)stream;
if (mmi->Flags1 & MINIDUMP_MISC1_PROCESS_ID)
pid = mmi->ProcessId;
}
/* fetch executable name (it's normally the first one in module list) */
strcpy(exec_name, "<minidump-exec>"); /* default */
if (MiniDumpReadDumpStream(data->mapping, ModuleListStream, &dir, &stream, &size))
{
mml = (MINIDUMP_MODULE_LIST*)stream;
if (mml->NumberOfModules)
{
char* ptr;
mm = &mml->Modules[0];
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
len = WideCharToMultiByte(CP_ACP, 0, mds->Buffer,
mds->Length / sizeof(WCHAR),
name, sizeof(name) - 1, NULL, NULL);
name[len] = 0;
for (ptr = name + len - 1; ptr >= name; ptr--)
{
if (*ptr == '/' || *ptr == '\\')
{
strcpy(exec_name, ptr + 1);
break;
}
}
if (ptr < name) strcpy(exec_name, name);
}
}
if (MiniDumpReadDumpStream(data->mapping, SystemInfoStream, &dir, &stream, &size))
{
MINIDUMP_SYSTEM_INFO* msi = (MINIDUMP_SYSTEM_INFO*)stream;
char *str, tmp[128];
dbg_printf("WineDbg starting on minidump on pid %lu\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"; break;
default: str = "???"; break;
}
strcat(tmp, str);
if (msi->ProcessorLevel == 3 || msi->ProcessorLevel == 4)
{
if (HIWORD(msi->ProcessorRevision) == 0xFF)
sprintf(tmp + strlen(tmp), "-%c%d",
'A' + HIBYTE(LOWORD(msi->ProcessorRevision)),
LOBYTE(LOWORD(msi->ProcessorRevision)));
else
sprintf(tmp + strlen(tmp), "-%c%d",
'A' + HIWORD(msi->ProcessorRevision),
LOWORD(msi->ProcessorRevision));
}
else sprintf(tmp + strlen(tmp), "-%d.%d",
HIWORD(msi->ProcessorRevision),
LOWORD(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;
default:
str = "???";
break;
}
dbg_printf(" %s was running on #%d %s CPU%s",
exec_name, 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 (%lu)\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);
SymInitialize(hProc, NULL, FALSE);
if (MiniDumpReadDumpStream(data->mapping, ThreadListStream, &dir, &stream, &size))
{
MINIDUMP_THREAD_LIST* mtl = (MINIDUMP_THREAD_LIST*)stream;
MINIDUMP_THREAD* mt = &mtl->Threads[0];
dbg_add_thread(dbg_curr_process, mt->ThreadId, NULL,
(void*)(DWORD_PTR)mt->Teb);
}
/* first load ELF modules, then do the PE ones */
if (MiniDumpReadDumpStream(data->mapping, Wine_ElfModuleListStream, &dir,
&stream, &size))
{
char buffer[MAX_PATH];
mml = (MINIDUMP_MODULE_LIST*)stream;
for (i = 0, mm = &mml->Modules[0]; i < mml->NumberOfModules; i++, mm++)
{
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
len = WideCharToMultiByte(CP_ACP, 0, mds->Buffer,
mds->Length / sizeof(WCHAR),
name, sizeof(name) - 1, NULL, NULL);
name[len] = 0;
if (SymFindFileInPath(hProc, NULL, name, (void*)(DWORD_PTR)mm->CheckSum,
0, 0, SSRVOPT_DWORD, buffer, validate_file, NULL))
SymLoadModule(hProc, NULL, buffer, NULL, mm->BaseOfImage, mm->SizeOfImage);
else
SymLoadModuleEx(hProc, NULL, name, NULL, mm->BaseOfImage, mm->SizeOfImage,
NULL, SLMFLAG_VIRTUAL);
}
}
if (MiniDumpReadDumpStream(data->mapping, ModuleListStream, &dir, &stream, &size))
{
mml = (MINIDUMP_MODULE_LIST*)stream;
for (i = 0, mm = &mml->Modules[0]; i < mml->NumberOfModules; i++, mm++)
{
mds = (MINIDUMP_STRING*)((char*)data->mapping + mm->ModuleNameRva);
len = WideCharToMultiByte(CP_ACP, 0, mds->Buffer,
mds->Length / sizeof(WCHAR),
name, sizeof(name) - 1, NULL, NULL);
name[len] = 0;
SymLoadModule(hProc, NULL, name, NULL,
mm->BaseOfImage, mm->SizeOfImage);
}
}
if (MiniDumpReadDumpStream(data->mapping, ExceptionStream, &dir, &stream, &size))
{
MINIDUMP_EXCEPTION_STREAM* mes = (MINIDUMP_EXCEPTION_STREAM*)stream;
if ((dbg_curr_thread = dbg_get_thread(dbg_curr_process, mes->ThreadId)))
{
ADDRESS 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)mes->ExceptionRecord.ExceptionRecord;
dbg_curr_thread->excpt_record.ExceptionAddress = (void*)(DWORD_PTR)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();
be_cpu->print_context(dbg_curr_thread->handle, &dbg_context);
stack_info();
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(pcs);
cleanup(data);
pcs->pio_data = NULL;
SymCleanup(pcs->handle);
dbg_del_process(pcs);
return TRUE;
}
static struct be_process_io be_process_minidump_io =
{
tgt_process_minidump_close_process,
tgt_process_minidump_read,
tgt_process_minidump_write,
};

16
programs/winedbg/winedbg.c
View File

@ -34,7 +34,8 @@
/* TODO list:
*
* - minidump
* + set a mode where winedbg would start (postmortem debugging) from a minidump
* + ensure that all commands work as expected in minidump reload function
* (and reenable parser usager)
* - CPU adherence
* + we always assume the stack grows as on i386 (ie downwards)
* - UI
@ -250,6 +251,15 @@ struct dbg_process* dbg_get_process(DWORD pid)
return p;
}
struct dbg_process* dbg_get_process_h(HANDLE h)
{
struct dbg_process* p;
for (p = dbg_process_list; p; p = p->next)
if (p->handle == h) break;
return p;
}
struct dbg_process* dbg_add_process(const struct be_process_io* pio, DWORD pid, HANDLE h)
{
struct dbg_process* p;
@ -273,6 +283,7 @@ struct dbg_process* dbg_add_process(const struct be_process_io* pio, DWORD pid,
p->handle = h;
p->pid = pid;
p->process_io = pio;
p->pio_data = NULL;
p->imageName = NULL;
p->threads = NULL;
p->continue_on_first_exception = FALSE;
@ -539,7 +550,8 @@ int main(int argc, char** argv)
return dbg_winedbg_usage();
}
if (!argc) ds = start_ok;
else if ((ds = dbg_active_attach(argc, argv)) == start_error_parse)
else if ((ds = dbg_active_attach(argc, argv)) == start_error_parse &&
(ds = minidump_reload(argc, argv)) == start_error_parse)
ds = dbg_active_launch(argc, argv);
switch (ds)
{