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- Save more registers (exception, float...) if they are defined. 

- Add Mac OS X signal support.
This commit is contained in:
Pierre d'Herbemont 2003-05-13 03:35:01 +00:00 committed by Alexandre Julliard
parent 38fa5ad1bc
commit ed3417e349
1 changed files with 324 additions and 151 deletions
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475
dlls/ntdll/signal_powerpc.c
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@ -65,11 +65,102 @@ WINE_DEFAULT_DEBUG_CHANNEL(seh);
/***********************************************************************
* signal context platform-specific definitions
*/
#ifdef linux
# warning Please define registers for your platform linux ppc some are missing
typedef struct ucontext SIGCONTEXT;
#define HANDLER_DEF(name) void name( int __signal, struct siginfo *__siginfo, SIGCONTEXT *__context )
#define HANDLER_CONTEXT (__context)
# define HANDLER_DEF(name) void name( int __signal, struct siginfo *__siginfo, SIGCONTEXT *__context )
# define HANDLER_CONTEXT (__context)
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name)
/* Gpr Registers access */
# define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
# define IAR_sig(context) REG_sig(nip, context) /* Program counter */
# define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */
# define CTR_sig(context) REG_sig(ctr, context) /* Count register */
# define XER_sig(context) XER_sig not defined on your platform /* Link register */
# define LR_sig(context) LR_sig not defined on your platform /* User's integer exception register */
# define CR_sig(context) CR_sig not defined on your platform /* Condition register */
/* Float Registers access */
# define FLOAT_sig(reg_num, context) FLOAT_sig not defined on your platform /* Float registers */
# define FPSCR_sig(reg_num, context) FPSCR_sig not defined on your platform /* Float registers */
/* Exception Registers access */
# define DAR_sig(context) DAR_sig not defined on your platform
# define DSISR_sig(context) DSISR_sig not defined on your platform
# define TRAP_sig(context) TRAP_sig not defined on your platform
#endif /* linux */
#ifdef __darwin__
# include <sys/ucontext.h>
# include <sys/types.h>
# include <signal.h>
typedef siginfo_t siginfo;
typedef struct ucontext SIGCONTEXT;
# define HANDLER_DEF(name) void name( int __signal, siginfo *__siginfo, SIGCONTEXT *__context )
# define HANDLER_CONTEXT (__context)
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name)
# define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name)
# define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name)
# define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name)
/* Gpr Registers access */
# define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
# define IAR_sig(context) REG_sig(srr0, context) /* Program counter */
# define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */
# define CTR_sig(context) REG_sig(ctr, context)
# define XER_sig(context) REG_sig(xer, context) /* Link register */
# define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */
# define CR_sig(context) REG_sig(cr, context) /* Condition register */
/* Float Registers access */
# define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context)
# define FPSCR_sig(context) ((double)FLOATREG_sig(fpscr, context))
/* Exception Registers access */
# define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */
# define DSISR_sig(context) EXCEPREG_sig(dsisr, context)
# define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
/* Signal defs : Those are undefined on darwin
SIGBUS
#undef BUS_ADRERR
#undef BUS_OBJERR
SIGILL
#undef ILL_ILLOPN
#undef ILL_ILLTRP
#undef ILL_ILLADR
#undef ILL_COPROC
#undef ILL_PRVREG
#undef ILL_BADSTK
SIGTRAP
#undef TRAP_BRKPT
#undef TRAP_TRACE
SIGFPE
*/
#endif /* __darwin__ */
typedef int (*wine_signal_handler)(unsigned int sig);
@ -93,30 +184,27 @@ inline static int dispatch_signal(unsigned int sig)
*/
static void save_context( CONTEXT *context, const SIGCONTEXT *sigcontext )
{
#define CX(x,y) context->x = sigcontext->uc_mcontext.regs->y
#define C(x) CX(Gpr##x,gpr[x])
#define C(x) context->Gpr##x = GPR_sig(x,sigcontext)
/* Save Gpr registers */
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
CX(Iar,nip);
CX(Msr,msr);
CX(Ctr,ctr);
#undef CX
/* FIXME: fp regs? */
/* FIXME: missing pt_regs ...
unsigned long link;
unsigned long xer;
unsigned long ccr;
unsigned long mq;
unsigned long trap;
unsigned long dar;
unsigned long dsisr;
*/
context->Iar = IAR_sig(sigcontext); /* Program Counter */
context->Msr = MSR_sig(sigcontext); /* Machine State Register (Supervisor) */
context->Ctr = CTR_sig(sigcontext);
context->Xer = XER_sig(sigcontext);
context->Lr = LR_sig(sigcontext);
context->Cr = CR_sig(sigcontext);
/* Saving Exception regs */
context->Dar = DAR_sig(sigcontext);
context->Dsisr = DSISR_sig(sigcontext);
context->Trap = TRAP_sig(sigcontext);
}
@ -127,16 +215,26 @@ static void save_context( CONTEXT *context, const SIGCONTEXT *sigcontext )
*/
static void restore_context( const CONTEXT *context, SIGCONTEXT *sigcontext )
{
#define CX(x,y) sigcontext->uc_mcontext.regs->y = context->x
#define C(x) GPR_sig(x,sigcontext) = context->Gpr##x
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
CX(Iar,nip);
CX(Msr,msr);
CX(Ctr,ctr);
#undef CX
IAR_sig(sigcontext) = context->Iar; /* Program Counter */
MSR_sig(sigcontext) = context->Msr; /* Machine State Register (Supervisor) */
CTR_sig(sigcontext) = context->Ctr;
XER_sig(sigcontext) = context->Xer;
LR_sig(sigcontext) = context->Lr;
CR_sig(sigcontext) = context->Cr;
/* Setting Exception regs */
DAR_sig(sigcontext) = context->Dar;
DSISR_sig(sigcontext) = context->Dsisr;
TRAP_sig(sigcontext) = context->Trap;
}
@ -147,7 +245,13 @@ static void restore_context( const CONTEXT *context, SIGCONTEXT *sigcontext )
*/
inline static void save_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
{
/* FIXME? */
#define C(x) context->Fpr##x = FLOAT_sig(x,sigcontext)
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
context->Fpscr = FPSCR_sig(sigcontext);
}
@ -158,7 +262,13 @@ inline static void save_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
*/
inline static void restore_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
{
/* FIXME? */
#define C(x) FLOAT_sig(x,sigcontext) = context->Fpr##x
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
FPSCR_sig(sigcontext) = context->Fpscr;
}
@ -169,7 +279,7 @@ inline static void restore_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
*/
static inline DWORD get_fpu_code( const CONTEXT *context )
{
DWORD status = 0 /* FIXME */;
DWORD status = context->Fpscr;
if (status & 0x01) /* IE */
{
@ -186,6 +296,186 @@ static inline DWORD get_fpu_code( const CONTEXT *context )
return EXCEPTION_FLT_INVALID_OPERATION; /* generic error */
}
/**********************************************************************
* do_segv
*
* Implementation of SIGSEGV handler.
*/
static void do_segv( CONTEXT *context, int trap, int err, int code, void * addr )
{
EXCEPTION_RECORD rec;
DWORD page_fault_code = EXCEPTION_ACCESS_VIOLATION;
rec.ExceptionRecord = NULL;
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionAddress = addr;
rec.NumberParameters = 0;
switch (trap) {
case SIGSEGV:
switch ( code & 0xffff ) {
case SEGV_MAPERR:
case SEGV_ACCERR:
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = 0; /* FIXME ? */
rec.ExceptionInformation[1] = (DWORD)addr;
if (!(page_fault_code=VIRTUAL_HandleFault(addr)))
return;
rec.ExceptionCode = page_fault_code;
break;
default:FIXME("Unhandled SIGSEGV/%x\n",code);
break;
}
break;
case SIGBUS:
switch ( code & 0xffff ) {
case BUS_ADRALN:
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
#ifdef BUS_ADRERR
case BUS_ADRERR:
#endif
#ifdef BUS_OBJERR
case BUS_OBJERR:
/* FIXME: correct for all cases ? */
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = 0; /* FIXME ? */
rec.ExceptionInformation[1] = (DWORD)addr;
if (!(page_fault_code=VIRTUAL_HandleFault(addr)))
return;
rec.ExceptionCode = page_fault_code;
break;
#endif
default:FIXME("Unhandled SIGBUS/%x\n",code);
break;
}
break;
case SIGILL:
switch ( code & 0xffff ) {
case ILL_ILLOPC: /* illegal opcode */
#ifdef ILL_ILLOPN
case ILL_ILLOPN: /* illegal operand */
#endif
#ifdef ILL_ILLADR
case ILL_ILLADR: /* illegal addressing mode */
#endif
#ifdef ILL_ILLTRP
case ILL_ILLTRP: /* illegal trap */
#endif
#ifdef ILL_COPROC
case ILL_COPROC: /* coprocessor error */
#endif
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
break;
case ILL_PRVOPC: /* privileged opcode */
#ifdef ILL_PRVREG
case ILL_PRVREG: /* privileged register */
#endif
rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
break;
#ifdef ILL_BADSTK
case ILL_BADSTK: /* internal stack error */
rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
break;
#endif
default:FIXME("Unhandled SIGILL/%x\n", code);
break;
}
break;
}
EXC_RtlRaiseException( &rec, context );
}
/**********************************************************************
* do_trap
*
* Implementation of SIGTRAP handler.
*/
static void do_trap( CONTEXT *context, int code, void * addr )
{
EXCEPTION_RECORD rec;
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = addr;
rec.NumberParameters = 0;
/* FIXME: check if we might need to modify PC */
switch (code & 0xffff) {
#ifdef TRAP_BRKPT
case TRAP_BRKPT:
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
break;
#endif
#ifdef TRAP_TRACE
case TRAP_TRACE:
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
break;
#endif
default:FIXME("Unhandled SIGTRAP/%x\n", code);
break;
}
EXC_RtlRaiseException( &rec, context );
}
/**********************************************************************
* do_trap
*
* Implementation of SIGFPE handler.
*/
static void do_fpe( CONTEXT *context, int code, void * addr )
{
EXCEPTION_RECORD rec;
switch ( code & 0xffff ) {
#ifdef FPE_FLTSUB
case FPE_FLTSUB:
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
break;
#endif
#ifdef FPE_INTDIV
case FPE_INTDIV:
rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
break;
#endif
#ifdef FPE_INTOVF
case FPE_INTOVF:
rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
break;
#endif
#ifdef FPE_FLTDIV
case FPE_FLTDIV:
rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
break;
#endif
#ifdef FPE_FLTOVF
case FPE_FLTOVF:
rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
break;
#endif
#ifdef FPE_FLTUND
case FPE_FLTUND:
rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
break;
#endif
#ifdef FPE_FLTRES
case FPE_FLTRES:
rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
break;
#endif
#ifdef FPE_FLTINV
case FPE_FLTINV:
#endif
default:
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
break;
}
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = addr;
rec.NumberParameters = 0;
EXC_RtlRaiseException( &rec, context );
}
/**********************************************************************
* segv_handler
@ -195,72 +485,8 @@ static inline DWORD get_fpu_code( const CONTEXT *context )
static HANDLER_DEF(segv_handler)
{
CONTEXT context;
EXCEPTION_RECORD rec;
DWORD page_fault_code = EXCEPTION_ACCESS_VIOLATION;
save_context( &context, HANDLER_CONTEXT );
rec.ExceptionRecord = NULL;
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionAddress = (LPVOID)HANDLER_CONTEXT->uc_mcontext.regs->nip;
rec.NumberParameters = 0;
switch (__siginfo->si_signo) {
case SIGSEGV:
switch ( __siginfo->si_code & 0xffff ) {
case SEGV_MAPERR:
case SEGV_ACCERR:
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = 0; /* FIXME ? */
rec.ExceptionInformation[1] = (DWORD)__siginfo->si_addr;
if (!(page_fault_code=VIRTUAL_HandleFault(__siginfo->si_addr)))
return;
rec.ExceptionCode = page_fault_code;
break;
default:FIXME("Unhandled SIGSEGV/%x\n",__siginfo->si_code);
break;
}
break;
case SIGBUS:
switch ( __siginfo->si_code & 0xffff ) {
case BUS_ADRALN:
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
case BUS_ADRERR:
case BUS_OBJERR:
/* FIXME: correct for all cases ? */
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = 0; /* FIXME ? */
rec.ExceptionInformation[1] = (DWORD)__siginfo->si_addr;
if (!(page_fault_code=VIRTUAL_HandleFault(__siginfo->si_addr)))
return;
rec.ExceptionCode = page_fault_code;
break;
default:FIXME("Unhandled SIGBUS/%x\n",__siginfo->si_code);
break;
}
break;
case SIGILL:
switch ( __siginfo->si_code & 0xffff ) {
case ILL_ILLOPC: /* illegal opcode */
case ILL_ILLOPN: /* illegal operand */
case ILL_ILLADR: /* illegal addressing mode */
case ILL_ILLTRP: /* illegal trap */
case ILL_COPROC: /* coprocessor error */
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
break;
case ILL_PRVOPC: /* privileged opcode */
case ILL_PRVREG: /* privileged register */
rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
break;
case ILL_BADSTK: /* internal stack error */
rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
break;
default:FIXME("Unhandled SIGILL/%x\n",__siginfo->si_code);
break;
}
break;
}
EXC_RtlRaiseException( &rec, &context );
do_segv( &context, __siginfo->si_signo, __siginfo->si_errno, __siginfo->si_code, __siginfo->si_addr );
restore_context( &context, HANDLER_CONTEXT );
}
@ -272,29 +498,11 @@ static HANDLER_DEF(segv_handler)
static HANDLER_DEF(trap_handler)
{
CONTEXT context;
EXCEPTION_RECORD rec;
save_context( &context, HANDLER_CONTEXT );
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = (LPVOID)__context->uc_mcontext.regs->nip;
rec.NumberParameters = 0;
/* FIXME: check if we might need to modify PC */
switch (__siginfo->si_code & 0xffff) {
case TRAP_BRKPT:
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
break;
case TRAP_TRACE:
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
break;
}
EXC_RtlRaiseException( &rec, &context );
do_trap( &context, __siginfo->si_code, __siginfo->si_addr );
restore_context( &context, HANDLER_CONTEXT );
}
/**********************************************************************
* fpe_handler
*
@ -303,48 +511,13 @@ static HANDLER_DEF(trap_handler)
static HANDLER_DEF(fpe_handler)
{
CONTEXT context;
EXCEPTION_RECORD rec;
/*save_fpu( &context, HANDLER_CONTEXT );*/
save_fpu( &context, HANDLER_CONTEXT );
save_context( &context, HANDLER_CONTEXT );
switch ( __siginfo->si_code & 0xffff ) {
case FPE_FLTSUB:
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
break;
case FPE_INTDIV:
rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
break;
case FPE_INTOVF:
rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
break;
case FPE_FLTDIV:
rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
break;
case FPE_FLTOVF:
rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
break;
case FPE_FLTUND:
rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
break;
case FPE_FLTRES:
rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
break;
case FPE_FLTINV:
default:
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
break;
}
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = (LPVOID)__context->uc_mcontext.regs->nip;
rec.NumberParameters = 0;
EXC_RtlRaiseException( &rec, &context );
do_fpe( &context, __siginfo->si_code, __siginfo->si_addr );
restore_context( &context, HANDLER_CONTEXT );
/*restore_fpu( &context, HANDLER_CONTEXT );*/
restore_fpu( &context, HANDLER_CONTEXT );
}
/**********************************************************************
* int_handler
*