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Use Iar (Instruction Address Register) instead of Fill[0]. 

siginfo.si_code uses the lower 16bit for the type of the exception.
This commit is contained in:
Marcus Meissner 2002-08-30 00:00:57 +00:00 committed by Alexandre Julliard
parent 12b901109d
commit c87c2c4f1a
4 changed files with 20 additions and 29 deletions
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2
dlls/ntdll/exception.c
View File

@ -49,7 +49,7 @@ typedef struct
#elif defined(__sparc__)
# define GET_IP(context) ((LPVOID)(context)->pc)
#elif defined(__powerpc__)
# define GET_IP(context) ((LPVOID)(context)->Fill[0])
# define GET_IP(context) ((LPVOID)(context)->Iar)
#else
# error You must define GET_IP for this CPU
#endif

22
dlls/ntdll/signal_powerpc.c
View File

@ -76,7 +76,7 @@ typedef struct ucontext SIGCONTEXT;
WINE_DEFAULT_DEBUG_CHANNEL(seh);
typedef int (*wine_signal_handler)(unsigned sig);
typedef int (*wine_signal_handler)(unsigned int sig);
static wine_signal_handler handlers[256];
@ -86,7 +86,7 @@ static sigset_t all_sigs;
/***********************************************************************
* dispatch_signal
*/
inline static int dispatch_signal(unsigned sig)
inline static int dispatch_signal(unsigned int sig)
{
if (handlers[sig] == NULL) return 0;
return handlers[sig](sig);
@ -106,7 +106,7 @@ static void save_context( CONTEXT *context, const SIGCONTEXT *sigcontext )
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
CX(Fill[0],nip);
CX(Iar,nip);
CX(Msr,msr);
CX(Ctr,ctr);
#undef CX
@ -139,7 +139,7 @@ static void restore_context( const CONTEXT *context, SIGCONTEXT *sigcontext )
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
CX(Fill[0],nip);
CX(Iar,nip);
CX(Msr,msr);
CX(Ctr,ctr);
#undef CX
@ -222,7 +222,7 @@ static HANDLER_DEF(segv_handler)
rec.NumberParameters = 0;
switch (__siginfo->si_signo) {
case SIGSEGV:
switch (__siginfo->si_code) {
switch ( __siginfo->si_code & 0xffff ) {
case SEGV_MAPERR:
case SEGV_ACCERR:
rec.NumberParameters = 2;
@ -237,7 +237,7 @@ static HANDLER_DEF(segv_handler)
}
break;
case SIGBUS:
switch (__siginfo->si_code) {
switch ( __siginfo->si_code & 0xffff ) {
case BUS_ADRALN:
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
@ -256,7 +256,7 @@ static HANDLER_DEF(segv_handler)
}
break;
case SIGILL:
switch (__siginfo->si_code) {
switch ( __siginfo->si_code & 0xffff ) {
case ILL_ILLOPC: /* illegal opcode */
case ILL_ILLOPN: /* illegal operand */
case ILL_ILLADR: /* illegal addressing mode */
@ -298,7 +298,7 @@ static HANDLER_DEF(trap_handler)
rec.NumberParameters = 0;
/* FIXME: check if we might need to modify PC */
switch (__siginfo->si_code) {
switch (__siginfo->si_code & 0xffff) {
case TRAP_BRKPT:
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
break;
@ -324,7 +324,7 @@ static HANDLER_DEF(fpe_handler)
/*save_fpu( &context, HANDLER_CONTEXT );*/
save_context( &context, HANDLER_CONTEXT );
switch ( __siginfo->si_code ) {
switch ( __siginfo->si_code & 0xffff ) {
case FPE_FLTSUB:
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
break;
@ -377,7 +377,7 @@ static HANDLER_DEF(int_handler)
rec.ExceptionCode = CONTROL_C_EXIT;
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = (LPVOID)context.Fill[0];
rec.ExceptionAddress = (LPVOID)context.Iar;
rec.NumberParameters = 0;
EXC_RtlRaiseException( &rec, &context );
restore_context( &context, HANDLER_CONTEXT );
@ -411,7 +411,7 @@ static int set_handler( int sig, int have_sigaltstack, void (*func)() )
/***********************************************************************
* __wine_set_signal_handler (NTDLL.@)
*/
int __wine_set_signal_handler(unsigned sig, wine_signal_handler wsh)
int __wine_set_signal_handler(unsigned int sig, wine_signal_handler wsh)
{
if (sig > sizeof(handlers) / sizeof(handlers[0])) return -1;
if (handlers[sig] != NULL) return -2;

2
include/winnt.h
View File

@ -959,7 +959,7 @@ typedef struct
/* These are selected by CONTEXT_CONTROL */
DWORD Msr;
DWORD Iar;
DWORD Iar; /* Instruction Address Register , aka PC ... */
DWORD Lr;
DWORD Ctr;

23
server/context_powerpc.c
View File

@ -56,18 +56,13 @@ static void get_thread_context( struct thread *thread, unsigned int flags, CONTE
#undef IREG
XREG(37,Xer);
XREG(38,Cr);
}
if (flags & CONTEXT_CONTROL)
{
XREG(32,Iar);
XREG(33,Msr);
XREG(35,Ctr);
XREG(32,Fill[0]); /* misused for PC / nip */
/* what is Iar? Lr? */
/*XREG(33*4,Iar);*/
/*XREG(33*4,Lr);*/
XREG(36,Lr); /* 36 is LNK ... probably Lr ? */
}
}
if (flags & CONTEXT_FLOATING_POINT)
@ -137,14 +132,10 @@ static void set_thread_context( struct thread *thread, unsigned int flags, const
}
if (flags & CONTEXT_CONTROL)
{
XREG(32,Iar);
XREG(33,Msr);
XREG(35,Ctr);
XREG(32,Fill[0]); /* misused for PC / nip */
/* what is Iar? Lr? */
/*XREG(33*4,Iar);*/
/*XREG(33*4,Lr);*/
XREG(36,Lr);
}
}
if (flags & CONTEXT_FLOATING_POINT)
@ -202,7 +193,7 @@ static void copy_context( CONTEXT *to, const CONTEXT *from, int flags )
{
CREG(Msr);
CREG(Ctr);
CREG(Fill[0]);
CREG(Iar);
}
if (flags & CONTEXT_INTEGER)
{
@ -256,13 +247,13 @@ static void copy_context( CONTEXT *to, const CONTEXT *from, int flags )
void *get_thread_ip( struct thread *thread )
{
CONTEXT context;
context.Fill[0] = 0;
context.Iar = 0;
if (suspend_for_ptrace( thread ))
{
get_thread_context( thread, CONTEXT_CONTROL, &context );
resume_thread( thread );
}
return (void *)context.Fill[0];
return (void *)context.Iar;
}
/* determine if we should continue the thread in single-step mode */