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winedbg: Moved into a common function all code dealing with printing information about an exception, and use this function to implement new 'info exception' command.

This commit is contained in:
Eric Pouech 2010-11-21 22:19:40 +01:00 committed by Alexandre Julliard
parent 9261ef2d0a
commit 78cf0961e9
4 changed files with 174 additions and 150 deletions
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1
programs/winedbg/dbg.y
View File

@ -291,6 +291,7 @@ info_command:
| tINFO tFRAME expr_rvalue { info_win32_frame_exceptions($3); }
| tINFO tMAPS { info_win32_virtual(dbg_curr_pid); }
| tINFO tMAPS expr_rvalue { info_win32_virtual($3); }
| tINFO tEXCEPTION { info_win32_exception(); }
;
maintenance_command:

4
programs/winedbg/debugger.h
View File

@ -183,6 +183,9 @@ struct dbg_thread
struct dbg_breakpoint step_over_bp;
char name[9];
BOOL in_exception; /* TRUE if thread stopped with an exception */
BOOL first_chance; /* TRUE if thread stopped with a first chance exception
* - only valid when in_exception is TRUE
*/
EXCEPTION_RECORD excpt_record; /* only valid when in_exception is TRUE */
struct
{
@ -354,6 +357,7 @@ extern void info_win32_threads(void);
extern void info_win32_frame_exceptions(DWORD tid);
extern void info_win32_virtual(DWORD pid);
extern void info_win32_segments(DWORD start, int length);
extern void info_win32_exception(void);
extern void info_wine_dbg_channel(BOOL add, const char* chnl, const char* name);
/* memory.c */

157
programs/winedbg/info.c
View File

@ -31,6 +31,7 @@
#include "winuser.h"
#include "tlhelp32.h"
#include "wine/debug.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
@ -757,3 +758,159 @@ void info_wine_dbg_channel(BOOL turn_on, const char* cls, const char* name)
if (!done) dbg_printf("Unable to find debug channel %s\n", name);
else WINE_TRACE("Changed %d channel instances\n", done);
}
void info_win32_exception(void)
{
const EXCEPTION_RECORD* rec;
ADDRESS64 addr;
char hexbuf[MAX_OFFSET_TO_STR_LEN];
if (!dbg_curr_thread->in_exception)
{
dbg_printf("Thread isn't in an exception\n");
return;
}
rec = &dbg_curr_thread->excpt_record;
memory_get_current_pc(&addr);
/* print some infos */
dbg_printf("%s: ",
dbg_curr_thread->first_chance ? "First chance exception" : "Unhandled exception");
switch (rec->ExceptionCode)
{
case EXCEPTION_BREAKPOINT:
dbg_printf("breakpoint");
break;
case EXCEPTION_SINGLE_STEP:
dbg_printf("single step");
break;
case EXCEPTION_INT_DIVIDE_BY_ZERO:
dbg_printf("divide by zero");
break;
case EXCEPTION_INT_OVERFLOW:
dbg_printf("overflow");
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
dbg_printf("array bounds");
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
dbg_printf("illegal instruction");
break;
case EXCEPTION_STACK_OVERFLOW:
dbg_printf("stack overflow");
break;
case EXCEPTION_PRIV_INSTRUCTION:
dbg_printf("privileged instruction");
break;
case EXCEPTION_ACCESS_VIOLATION:
if (rec->NumberParameters == 2)
dbg_printf("page fault on %s access to 0x%08lx",
rec->ExceptionInformation[0] == EXCEPTION_WRITE_FAULT ? "write" :
rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT ? "execute" : "read",
rec->ExceptionInformation[1]);
else
dbg_printf("page fault");
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
dbg_printf("Alignment");
break;
case DBG_CONTROL_C:
dbg_printf("^C");
break;
case CONTROL_C_EXIT:
dbg_printf("^C");
break;
case STATUS_POSSIBLE_DEADLOCK:
{
ADDRESS64 recaddr;
recaddr.Mode = AddrModeFlat;
recaddr.Offset = rec->ExceptionInformation[0];
dbg_printf("wait failed on critical section ");
print_address(&recaddr, FALSE);
}
break;
case EXCEPTION_WINE_STUB:
{
char dll[32], name[64];
memory_get_string(dbg_curr_process,
(void*)rec->ExceptionInformation[0], TRUE, FALSE,
dll, sizeof(dll));
if (HIWORD(rec->ExceptionInformation[1]))
memory_get_string(dbg_curr_process,
(void*)rec->ExceptionInformation[1], TRUE, FALSE,
name, sizeof(name));
else
sprintf( name, "%ld", rec->ExceptionInformation[1] );
dbg_printf("unimplemented function %s.%s called", dll, name);
}
break;
case EXCEPTION_WINE_ASSERTION:
dbg_printf("assertion failed");
break;
case EXCEPTION_VM86_INTx:
dbg_printf("interrupt %02lx in vm86 mode", rec->ExceptionInformation[0]);
break;
case EXCEPTION_VM86_STI:
dbg_printf("sti in vm86 mode");
break;
case EXCEPTION_VM86_PICRETURN:
dbg_printf("PIC return in vm86 mode");
break;
case EXCEPTION_FLT_DENORMAL_OPERAND:
dbg_printf("denormal float operand");
break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
dbg_printf("divide by zero");
break;
case EXCEPTION_FLT_INEXACT_RESULT:
dbg_printf("inexact float result");
break;
case EXCEPTION_FLT_INVALID_OPERATION:
dbg_printf("invalid float operation");
break;
case EXCEPTION_FLT_OVERFLOW:
dbg_printf("floating point overflow");
break;
case EXCEPTION_FLT_UNDERFLOW:
dbg_printf("floating point underflow");
break;
case EXCEPTION_FLT_STACK_CHECK:
dbg_printf("floating point stack check");
break;
case CXX_EXCEPTION:
if(rec->NumberParameters == 3 && rec->ExceptionInformation[0] == CXX_FRAME_MAGIC)
dbg_printf("C++ exception(object = 0x%08lx, type = 0x%08lx)",
rec->ExceptionInformation[1], rec->ExceptionInformation[2]);
else
dbg_printf("C++ exception with strange parameter count %d or magic 0x%08lx",
rec->NumberParameters, rec->ExceptionInformation[0]);
break;
default:
dbg_printf("0x%08x", rec->ExceptionCode);
break;
}
if (rec->ExceptionFlags & EH_STACK_INVALID)
dbg_printf(", invalid program stack");
switch (addr.Mode)
{
case AddrModeFlat:
dbg_printf(" in %d-bit code (%s)",
be_cpu->pointer_size * 8,
memory_offset_to_string(hexbuf, addr.Offset, 0));
break;
case AddrModeReal:
dbg_printf(" in vm86 code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
break;
case AddrMode1616:
dbg_printf(" in 16-bit code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
break;
case AddrMode1632:
dbg_printf(" in segmented 32-bit code (%04x:%08lx)", addr.Segment, (unsigned long) addr.Offset);
break;
default: dbg_printf(" bad address");
}
dbg_printf(".\n");
}

162
programs/winedbg/tgt_active.c
View File

@ -118,44 +118,18 @@ static unsigned dbg_fetch_context(void)
* or exception is silently continued(return FALSE)
* is_debug means the exception is a breakpoint or single step exception
*/
static unsigned dbg_exception_prolog(BOOL is_debug, BOOL first_chance, const EXCEPTION_RECORD* rec)
static unsigned dbg_exception_prolog(BOOL is_debug, const EXCEPTION_RECORD* rec)
{
ADDRESS64 addr;
BOOL is_break;
char hexbuf[MAX_OFFSET_TO_STR_LEN];
memory_get_current_pc(&addr);
break_suspend_execution();
dbg_curr_thread->excpt_record = *rec;
dbg_curr_thread->in_exception = TRUE;
if (!is_debug)
{
switch (addr.Mode)
{
case AddrModeFlat:
dbg_printf(" in %d-bit code (%s)",
be_cpu->pointer_size * 8,
memory_offset_to_string(hexbuf, addr.Offset, 0));
break;
case AddrModeReal:
dbg_printf(" in vm86 code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
break;
case AddrMode1616:
dbg_printf(" in 16-bit code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
break;
case AddrMode1632:
dbg_printf(" in segmented 32-bit code (%04x:%08lx)", addr.Segment, (unsigned long) addr.Offset);
break;
default: dbg_printf(" bad address");
}
dbg_printf(".\n");
}
/* this will resynchronize builtin dbghelp's internal ELF module list */
SymLoadModule(dbg_curr_process->handle, 0, 0, 0, 0, 0);
if (is_debug) break_adjust_pc(&addr, rec->ExceptionCode, first_chance, &is_break);
if (is_debug) break_adjust_pc(&addr, rec->ExceptionCode, dbg_curr_thread->first_chance, &is_break);
/*
* Do a quiet backtrace so that we have an idea of what the situation
* is WRT the source files.
@ -285,131 +259,19 @@ static DWORD dbg_handle_exception(const EXCEPTION_RECORD* rec, BOOL first_chance
return DBG_EXCEPTION_NOT_HANDLED;
}
if (!is_debug)
dbg_curr_thread->excpt_record = *rec;
dbg_curr_thread->in_exception = TRUE;
dbg_curr_thread->first_chance = first_chance;
if (!is_debug) info_win32_exception();
if (rec->ExceptionCode == STATUS_POSSIBLE_DEADLOCK && !DBG_IVAR(BreakOnCritSectTimeOut))
{
/* print some infos */
dbg_printf("%s: ",
first_chance ? "First chance exception" : "Unhandled exception");
switch (rec->ExceptionCode)
{
case EXCEPTION_INT_DIVIDE_BY_ZERO:
dbg_printf("divide by zero");
break;
case EXCEPTION_INT_OVERFLOW:
dbg_printf("overflow");
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
dbg_printf("array bounds");
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
dbg_printf("illegal instruction");
break;
case EXCEPTION_STACK_OVERFLOW:
dbg_printf("stack overflow");
break;
case EXCEPTION_PRIV_INSTRUCTION:
dbg_printf("privileged instruction");
break;
case EXCEPTION_ACCESS_VIOLATION:
if (rec->NumberParameters == 2)
dbg_printf("page fault on %s access to 0x%08lx",
rec->ExceptionInformation[0] == EXCEPTION_WRITE_FAULT ? "write" :
rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT ? "execute" : "read",
rec->ExceptionInformation[1]);
else
dbg_printf("page fault");
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
dbg_printf("Alignment");
break;
case DBG_CONTROL_C:
dbg_printf("^C");
break;
case CONTROL_C_EXIT:
dbg_printf("^C");
break;
case STATUS_POSSIBLE_DEADLOCK:
{
ADDRESS64 addr;
addr.Mode = AddrModeFlat;
addr.Offset = rec->ExceptionInformation[0];
dbg_printf("wait failed on critical section ");
print_address(&addr, FALSE);
}
if (!DBG_IVAR(BreakOnCritSectTimeOut))
{
dbg_printf("\n");
return DBG_EXCEPTION_NOT_HANDLED;
}
break;
case EXCEPTION_WINE_STUB:
{
char dll[32], name[64];
memory_get_string(dbg_curr_process,
(void*)rec->ExceptionInformation[0], TRUE, FALSE,
dll, sizeof(dll));
if (HIWORD(rec->ExceptionInformation[1]))
memory_get_string(dbg_curr_process,
(void*)rec->ExceptionInformation[1], TRUE, FALSE,
name, sizeof(name));
else
sprintf( name, "%ld", rec->ExceptionInformation[1] );
dbg_printf("unimplemented function %s.%s called", dll, name);
}
break;
case EXCEPTION_WINE_ASSERTION:
dbg_printf("assertion failed");
break;
case EXCEPTION_VM86_INTx:
dbg_printf("interrupt %02lx in vm86 mode", rec->ExceptionInformation[0]);
break;
case EXCEPTION_VM86_STI:
dbg_printf("sti in vm86 mode");
break;
case EXCEPTION_VM86_PICRETURN:
dbg_printf("PIC return in vm86 mode");
break;
case EXCEPTION_FLT_DENORMAL_OPERAND:
dbg_printf("denormal float operand");
break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
dbg_printf("divide by zero");
break;
case EXCEPTION_FLT_INEXACT_RESULT:
dbg_printf("inexact float result");
break;
case EXCEPTION_FLT_INVALID_OPERATION:
dbg_printf("invalid float operation");
break;
case EXCEPTION_FLT_OVERFLOW:
dbg_printf("floating point overflow");
break;
case EXCEPTION_FLT_UNDERFLOW:
dbg_printf("floating point underflow");
break;
case EXCEPTION_FLT_STACK_CHECK:
dbg_printf("floating point stack check");
break;
case CXX_EXCEPTION:
if(rec->NumberParameters == 3 && rec->ExceptionInformation[0] == CXX_FRAME_MAGIC)
dbg_printf("C++ exception(object = 0x%08lx, type = 0x%08lx)",
rec->ExceptionInformation[1], rec->ExceptionInformation[2]);
else
dbg_printf("C++ exception with strange parameter count %d or magic 0x%08lx",
rec->NumberParameters, rec->ExceptionInformation[0]);
break;
default:
dbg_printf("0x%08x", rec->ExceptionCode);
break;
}
}
if( (rec->ExceptionFlags & EH_STACK_INVALID) ) {
dbg_printf( ", invalid program stack" );
dbg_curr_thread->in_exception = FALSE;
return DBG_EXCEPTION_NOT_HANDLED;
}
if (dbg_exception_prolog(is_debug, first_chance, rec))
if (dbg_exception_prolog(is_debug, rec))
{
dbg_interactiveP = TRUE;
return 0;