Moved all signal support to a new platform-specific file.
Make use of the per-thread signal stack (Juergen Lock). Fixed %fs in signal handler for non FS_sig case (Ulrich Weigand).
This commit is contained in:
Alexandre Julliard
parent
55c2d900c6
commit
3d06d20bab
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@ -16,6 +16,7 @@ C_SRCS = \
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rtl.c \
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rtlstr.c \
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sec.c \
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signal_i386.c \
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sync.c \
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time.c
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@ -12,7 +12,6 @@
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#include "global.h"
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#include "wine/exception.h"
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#include "stackframe.h"
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#include "sig_context.h"
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#include "miscemu.h"
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#include "debugtools.h"
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@ -25,10 +24,11 @@ typedef struct
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EXCEPTION_FRAME *prevFrame;
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} EXC_NESTED_FRAME;
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#ifdef __i386__
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# define GET_IP(context) ((LPVOID)EIP_reg(context))
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# define GET_IP(context) ((LPVOID)(context)->Eip)
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#else
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# define GET_IP(context) ((LPVOID)0)
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# error You must define GET_IP for this CPU
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#endif /* __i386__ */
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/* Default hook for built-in debugger */
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@ -224,7 +224,7 @@ void WINAPI REGS_FUNC(RtlUnwind)( PEXCEPTION_FRAME pEndFrame, LPVOID unusedEip,
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PEXCEPTION_FRAME frame, dispatch;
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#ifdef __i386__
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EAX_reg(context) = returnEax;
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context->Eax = returnEax;
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#endif
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/* build an exception record, if we do not have one */
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@ -343,362 +343,3 @@ void WINAPI DebugBreak16( CONTEXT86 *context )
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REGS_FUNC(DebugBreak)( context );
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#endif /* defined(__i386__) */
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}
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/***********************************************************************
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* EXC_SaveContext
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*
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* Set the register values from a sigcontext.
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*/
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static void EXC_SaveContext( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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EAX_reg(context) = EAX_sig(sigcontext);
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EBX_reg(context) = EBX_sig(sigcontext);
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ECX_reg(context) = ECX_sig(sigcontext);
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EDX_reg(context) = EDX_sig(sigcontext);
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ESI_reg(context) = ESI_sig(sigcontext);
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EDI_reg(context) = EDI_sig(sigcontext);
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EBP_reg(context) = EBP_sig(sigcontext);
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EFL_reg(context) = EFL_sig(sigcontext);
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EIP_reg(context) = EIP_sig(sigcontext);
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ESP_reg(context) = ESP_sig(sigcontext);
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CS_reg(context) = LOWORD(CS_sig(sigcontext));
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DS_reg(context) = LOWORD(DS_sig(sigcontext));
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ES_reg(context) = LOWORD(ES_sig(sigcontext));
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SS_reg(context) = LOWORD(SS_sig(sigcontext));
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#ifdef FS_sig
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FS_reg(context) = LOWORD(FS_sig(sigcontext));
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#else
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GET_FS( FS_reg(context) );
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FS_reg(context) &= 0xffff;
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#endif
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#ifdef GS_sig
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GS_reg(context) = LOWORD(GS_sig(sigcontext));
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#else
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GET_GS( GS_reg(context) );
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GS_reg(context) &= 0xffff;
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#endif
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if (ISV86(context)) V86BASE(context) = (DWORD)DOSMEM_MemoryBase(0);
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#endif /* __i386__ */
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}
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/***********************************************************************
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* EXC_RestoreContext
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*
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* Build a sigcontext from the register values.
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*/
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static void EXC_RestoreContext( const CONTEXT *context, SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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EAX_sig(sigcontext) = EAX_reg(context);
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EBX_sig(sigcontext) = EBX_reg(context);
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ECX_sig(sigcontext) = ECX_reg(context);
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EDX_sig(sigcontext) = EDX_reg(context);
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ESI_sig(sigcontext) = ESI_reg(context);
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EDI_sig(sigcontext) = EDI_reg(context);
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EBP_sig(sigcontext) = EBP_reg(context);
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EFL_sig(sigcontext) = EFL_reg(context);
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EIP_sig(sigcontext) = EIP_reg(context);
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ESP_sig(sigcontext) = ESP_reg(context);
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CS_sig(sigcontext) = CS_reg(context);
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DS_sig(sigcontext) = DS_reg(context);
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ES_sig(sigcontext) = ES_reg(context);
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SS_sig(sigcontext) = SS_reg(context);
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#ifdef FS_sig
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FS_sig(sigcontext) = FS_reg(context);
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#else
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SET_FS( FS_reg(context) );
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#endif
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#ifdef GS_sig
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GS_sig(sigcontext) = GS_reg(context);
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#else
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SET_GS( GS_reg(context) );
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#endif
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#endif /* __i386__ */
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}
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/**********************************************************************
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* EXC_segv
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*
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* Handler for SIGSEGV and related errors.
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*/
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static HANDLER_DEF(EXC_segv)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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#if defined(TRAP_sig) && defined(CR2_sig)
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/* we want the page-fault case to be fast */
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if (TRAP_sig(HANDLER_CONTEXT) == 14)
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if (VIRTUAL_HandleFault( (LPVOID)CR2_sig(HANDLER_CONTEXT) )) return;
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#endif
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionRecord = NULL;
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rec.ExceptionFlags = 0;
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rec.ExceptionAddress = GET_IP(&context);
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rec.NumberParameters = 0;
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#ifdef TRAP_sig
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switch(TRAP_sig(HANDLER_CONTEXT))
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{
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case 4: /* Overflow exception */
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rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
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break;
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case 5: /* Bound range exception */
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rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
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break;
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case 6: /* Invalid opcode exception */
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
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break;
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case 12: /* Stack fault */
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rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
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break;
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case 11: /* Segment not present exception */
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case 13: /* General protection fault */
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if (INSTR_EmulateInstruction( &context )) goto restore;
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rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
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break;
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case 14: /* Page fault */
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#ifdef CR2_sig
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rec.NumberParameters = 2;
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#ifdef ERROR_sig
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rec.ExceptionInformation[0] = (ERROR_sig(HANDLER_CONTEXT) & 2) != 0;
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#else
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rec.ExceptionInformation[0] = 0;
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#endif /* ERROR_sig */
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rec.ExceptionInformation[1] = CR2_sig(HANDLER_CONTEXT);
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#endif /* CR2_sig */
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rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
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break;
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case 17: /* Alignment check exception */
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/* FIXME: pass through exception handler first? */
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if (EFL_reg(&context) & 0x00040000)
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{
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/* Disable AC flag, return */
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EFL_reg(&context) &= ~0x00040000;
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goto restore;
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}
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rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
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break;
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default:
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ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
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/* fall through */
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case 2: /* NMI interrupt */
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case 7: /* Device not available exception */
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case 8: /* Double fault exception */
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case 10: /* Invalid TSS exception */
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case 15: /* Unknown exception */
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case 18: /* Machine check exception */
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case 19: /* Cache flush exception */
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
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break;
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}
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#else /* TRAP_sig */
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# ifdef __i386__
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if (INSTR_EmulateInstruction( &context )) goto restore;
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# endif
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rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION; /* generic error */
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#endif /* TRAP_sig */
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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restore:
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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}
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/**********************************************************************
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* EXC_trap
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*
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* Handler for SIGTRAP.
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*/
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static HANDLER_DEF(EXC_trap)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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#ifdef TRAP_sig
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rec.ExceptionCode = (TRAP_sig(HANDLER_CONTEXT) == 1) ?
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EXCEPTION_SINGLE_STEP : EXCEPTION_BREAKPOINT;
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#else
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rec.ExceptionCode = EXCEPTION_BREAKPOINT;
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#endif /* TRAP_sig */
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = GET_IP(&context);
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rec.NumberParameters = 0;
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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}
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/***********************************************************************
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* EXC_SaveFPU
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*
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* Set the FPU context from a sigcontext.
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*/
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static void inline EXC_SaveFPU( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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# ifdef FPU_sig
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if (FPU_sig(sigcontext))
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{
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context->FloatSave = *FPU_sig(sigcontext);
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return;
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}
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# endif /* FPU_sig */
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# ifdef __GNUC__
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__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
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# endif /* __GNUC__ */
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#endif /* __i386__ */
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}
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/***********************************************************************
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* EXC_RestoreFPU
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*
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* Restore the FPU context to a sigcontext.
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*/
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static void inline EXC_RestoreFPU( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#ifdef __i386__
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# ifdef FPU_sig
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if (FPU_sig(sigcontext))
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{
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*FPU_sig(sigcontext) = context->FloatSave;
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return;
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}
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# endif /* FPU_sig */
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# ifdef __GNUC__
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/* avoid nested exceptions */
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context->FloatSave.StatusWord &= context->FloatSave.ControlWord | 0xffffff80;
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__asm__ __volatile__( "frstor %0; fwait" : : "m" (context->FloatSave) );
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# endif /* __GNUC__ */
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#endif /* __i386__ */
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}
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/**********************************************************************
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* EXC_GetFPUCode
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*
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* Get the FPU exception code from the FPU status.
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*/
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static inline DWORD EXC_GetFPUCode( const CONTEXT *context )
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{
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#ifdef __i386__
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DWORD status = context->FloatSave.StatusWord;
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if (status & 0x01) /* IE */
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{
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if (status & 0x40) /* SF */
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return EXCEPTION_FLT_STACK_CHECK;
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else
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return EXCEPTION_FLT_INVALID_OPERATION;
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}
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if (status & 0x02) return EXCEPTION_FLT_DENORMAL_OPERAND; /* DE flag */
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if (status & 0x04) return EXCEPTION_FLT_DIVIDE_BY_ZERO; /* ZE flag */
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if (status & 0x08) return EXCEPTION_FLT_OVERFLOW; /* OE flag */
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if (status & 0x10) return EXCEPTION_FLT_UNDERFLOW; /* UE flag */
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if (status & 0x20) return EXCEPTION_FLT_INEXACT_RESULT; /* PE flag */
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#endif /* __i386__ */
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return EXCEPTION_FLT_INVALID_OPERATION; /* generic error */
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}
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/**********************************************************************
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* EXC_fpe
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*
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* Handler for SIGFPE.
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*/
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static HANDLER_DEF(EXC_fpe)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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EXC_SaveFPU( &context, HANDLER_CONTEXT );
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#ifdef TRAP_sig
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switch(TRAP_sig(HANDLER_CONTEXT))
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{
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case 0: /* Division by zero exception */
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rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
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break;
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case 9: /* Coprocessor segment overrun */
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rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
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break;
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case 16: /* Floating point exception */
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rec.ExceptionCode = EXC_GetFPUCode( &context );
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break;
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default:
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ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
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rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
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break;
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}
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#else /* TRAP_sig */
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rec.ExceptionCode = EXC_GetFPUCode( &context );
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#endif /* TRAP_sig */
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionFlags = 0;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = GET_IP(&context);
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rec.NumberParameters = 0;
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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EXC_RestoreFPU( &context, HANDLER_CONTEXT );
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}
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/**********************************************************************
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* EXC_int
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*
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* Handler for SIGINT.
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*/
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static HANDLER_DEF(EXC_int)
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{
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EXCEPTION_RECORD rec;
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CONTEXT context;
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HANDLER_INIT();
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EXC_SaveContext( &context, HANDLER_CONTEXT );
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rec.ExceptionCode = CONTROL_C_EXIT;
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rec.ExceptionFlags = 0;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = GET_IP(&context);
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rec.NumberParameters = 0;
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REGS_FUNC(RtlRaiseException)( &rec, &context );
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EXC_RestoreContext( &context, HANDLER_CONTEXT );
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}
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/**********************************************************************
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* EXC_InitHandlers
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*
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* Initialize the signal handlers for exception handling.
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*/
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void EXC_InitHandlers(void)
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{
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SIGNAL_SetHandler( SIGINT, (void (*)())EXC_int );
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SIGNAL_SetHandler( SIGFPE, (void (*)())EXC_fpe );
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SIGNAL_SetHandler( SIGSEGV, (void (*)())EXC_segv );
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SIGNAL_SetHandler( SIGILL, (void (*)())EXC_segv );
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#ifdef SIGBUS
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SIGNAL_SetHandler( SIGBUS, (void (*)())EXC_segv );
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#endif
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#ifdef SIGTRAP
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SIGNAL_SetHandler( SIGTRAP, (void (*)())EXC_trap );
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#endif
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return;
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}
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|
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@ -0,0 +1,680 @@
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/*
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* i386 signal handling routines
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*
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* Copyright 1999 Alexandre Julliard
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*/
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#ifdef __i386__
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#include "config.h"
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#include <errno.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifdef HAVE_SYSCALL_H
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# include <syscall.h>
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#else
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# ifdef HAVE_SYS_SYSCALL_H
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# include <sys/syscall.h>
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# endif
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#endif
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#include "winnt.h"
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#include "stackframe.h"
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#include "global.h"
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#include "miscemu.h"
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#include "ntddk.h"
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#include "syslevel.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(seh)
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/***********************************************************************
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* signal context platform-specific definitions
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*/
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#ifdef linux
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typedef struct
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{
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unsigned short sc_gs, __gsh;
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unsigned short sc_fs, __fsh;
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unsigned short sc_es, __esh;
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unsigned short sc_ds, __dsh;
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unsigned long sc_edi;
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unsigned long sc_esi;
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unsigned long sc_ebp;
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unsigned long sc_esp;
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unsigned long sc_ebx;
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unsigned long sc_edx;
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unsigned long sc_ecx;
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unsigned long sc_eax;
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unsigned long sc_trapno;
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unsigned long sc_err;
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unsigned long sc_eip;
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unsigned short sc_cs, __csh;
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unsigned long sc_eflags;
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unsigned long esp_at_signal;
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unsigned short sc_ss, __ssh;
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unsigned long i387;
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unsigned long oldmask;
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unsigned long cr2;
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} SIGCONTEXT;
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#define HANDLER_DEF(name) void name( int __signal, SIGCONTEXT __context )
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#define HANDLER_CONTEXT (&__context)
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/* this is the sigaction structure from the Linux 2.1.20 kernel. */
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#undef sa_handler
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struct kernel_sigaction
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{
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void (*sa_handler)();
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unsigned long sa_mask;
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unsigned long sa_flags;
|
||||
void *sa_restorer;
|
||||
};
|
||||
|
||||
/* Similar to the sigaction function in libc, except it leaves alone the
|
||||
restorer field, which is used to specify the signal stack address */
|
||||
static inline int wine_sigaction( int sig, struct kernel_sigaction *new,
|
||||
struct kernel_sigaction *old )
|
||||
{
|
||||
__asm__ __volatile__( "pushl %%ebx\n\t"
|
||||
"movl %2,%%ebx\n\t"
|
||||
"int $0x80\n\t"
|
||||
"popl %%ebx"
|
||||
: "=a" (sig)
|
||||
: "0" (SYS_sigaction), "r" (sig), "c" (new), "d" (old) );
|
||||
if (sig>=0) return 0;
|
||||
errno = -sig;
|
||||
return -1;
|
||||
}
|
||||
|
||||
#endif /* linux */
|
||||
|
||||
#ifdef BSDI
|
||||
|
||||
#define EAX_sig(context) ((context)->tf_eax)
|
||||
#define EBX_sig(context) ((context)->tf_ebx)
|
||||
#define ECX_sig(context) ((context)->tf_ecx)
|
||||
#define EDX_sig(context) ((context)->tf_edx)
|
||||
#define ESI_sig(context) ((context)->tf_esi)
|
||||
#define EDI_sig(context) ((context)->tf_edi)
|
||||
#define EBP_sig(context) ((context)->tf_ebp)
|
||||
|
||||
#define CS_sig(context) ((context)->tf_cs)
|
||||
#define DS_sig(context) ((context)->tf_ds)
|
||||
#define ES_sig(context) ((context)->tf_es)
|
||||
#define SS_sig(context) ((context)->tf_ss)
|
||||
|
||||
#include <machine/frame.h>
|
||||
typedef struct trapframe SIGCONTEXT;
|
||||
|
||||
#define HANDLER_DEF(name) void name( int __signal, int code, SIGCONTEXT *__context )
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#define EFL_sig(context) ((context)->tf_eflags)
|
||||
|
||||
#define EIP_sig(context) (*((unsigned long*)&(context)->tf_eip))
|
||||
#define ESP_sig(context) (*((unsigned long*)&(context)->tf_esp))
|
||||
|
||||
#endif /* bsdi */
|
||||
|
||||
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
||||
|
||||
#include <signal.h>
|
||||
typedef struct sigcontext SIGCONTEXT;
|
||||
|
||||
#define HANDLER_DEF(name) void name( int __signal, int code, SIGCONTEXT *__context )
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#endif /* FreeBSD */
|
||||
|
||||
#if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
|
||||
|
||||
#include <signal.h>
|
||||
#ifdef _SCO_DS
|
||||
#include <sys/regset.h>
|
||||
#endif
|
||||
/* Solaris kludge */
|
||||
#undef ERR
|
||||
#include <sys/ucontext.h>
|
||||
#undef ERR
|
||||
typedef struct ucontext SIGCONTEXT;
|
||||
|
||||
#define HANDLER_DEF(name) void name( int __signal, void *__siginfo, SIGCONTEXT *__context )
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#endif /* svr4 || SCO_DS */
|
||||
|
||||
#ifdef __EMX__
|
||||
|
||||
typedef struct
|
||||
{
|
||||
unsigned long ContextFlags;
|
||||
FLOATING_SAVE_AREA sc_float;
|
||||
unsigned long sc_gs;
|
||||
unsigned long sc_fs;
|
||||
unsigned long sc_es;
|
||||
unsigned long sc_ds;
|
||||
unsigned long sc_edi;
|
||||
unsigned long sc_esi;
|
||||
unsigned long sc_eax;
|
||||
unsigned long sc_ebx;
|
||||
unsigned long sc_ecx;
|
||||
unsigned long sc_edx;
|
||||
unsigned long sc_ebp;
|
||||
unsigned long sc_eip;
|
||||
unsigned long sc_cs;
|
||||
unsigned long sc_eflags;
|
||||
unsigned long sc_esp;
|
||||
unsigned long sc_ss;
|
||||
} SIGCONTEXT;
|
||||
|
||||
#endif /* __EMX__ */
|
||||
|
||||
|
||||
#if defined(linux) || defined(__NetBSD__) || defined(__FreeBSD__) \
|
||||
|| defined(__OpenBSD__) || defined(__EMX__)
|
||||
|
||||
#define EAX_sig(context) ((context)->sc_eax)
|
||||
#define EBX_sig(context) ((context)->sc_ebx)
|
||||
#define ECX_sig(context) ((context)->sc_ecx)
|
||||
#define EDX_sig(context) ((context)->sc_edx)
|
||||
#define ESI_sig(context) ((context)->sc_esi)
|
||||
#define EDI_sig(context) ((context)->sc_edi)
|
||||
#define EBP_sig(context) ((context)->sc_ebp)
|
||||
|
||||
#define CS_sig(context) ((context)->sc_cs)
|
||||
#define DS_sig(context) ((context)->sc_ds)
|
||||
#define ES_sig(context) ((context)->sc_es)
|
||||
#define SS_sig(context) ((context)->sc_ss)
|
||||
|
||||
#ifdef linux
|
||||
/* FS and GS are now in the sigcontext struct of FreeBSD, but not
|
||||
* saved by the exception handling. duh.
|
||||
*/
|
||||
#define FS_sig(context) ((context)->sc_fs)
|
||||
#define GS_sig(context) ((context)->sc_gs)
|
||||
#define CR2_sig(context) ((context)->cr2)
|
||||
#define TRAP_sig(context) ((context)->sc_trapno)
|
||||
#define ERROR_sig(context) ((context)->sc_err)
|
||||
#define FPU_sig(context) ((FLOATING_SAVE_AREA*)((context)->i387))
|
||||
#endif
|
||||
|
||||
#ifndef __FreeBSD__
|
||||
#define EFL_sig(context) ((context)->sc_eflags)
|
||||
#else
|
||||
#define EFL_sig(context) ((context)->sc_efl)
|
||||
/* FreeBSD, see i386/i386/traps.c::trap_pfault va->err kludge */
|
||||
#define CR2_sig(context) ((context)->sc_err)
|
||||
#endif
|
||||
|
||||
#define EIP_sig(context) (*((unsigned long*)&(context)->sc_eip))
|
||||
#define ESP_sig(context) (*((unsigned long*)&(context)->sc_esp))
|
||||
|
||||
#endif /* linux || __NetBSD__ || __FreeBSD__ || __OpenBSD__ */
|
||||
|
||||
#if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
|
||||
|
||||
#ifdef _SCO_DS
|
||||
#define gregs regs
|
||||
#endif
|
||||
|
||||
#define EAX_sig(context) ((context)->uc_mcontext.gregs[EAX])
|
||||
#define EBX_sig(context) ((context)->uc_mcontext.gregs[EBX])
|
||||
#define ECX_sig(context) ((context)->uc_mcontext.gregs[ECX])
|
||||
#define EDX_sig(context) ((context)->uc_mcontext.gregs[EDX])
|
||||
#define ESI_sig(context) ((context)->uc_mcontext.gregs[ESI])
|
||||
#define EDI_sig(context) ((context)->uc_mcontext.gregs[EDI])
|
||||
#define EBP_sig(context) ((context)->uc_mcontext.gregs[EBP])
|
||||
|
||||
#define CS_sig(context) ((context)->uc_mcontext.gregs[CS])
|
||||
#define DS_sig(context) ((context)->uc_mcontext.gregs[DS])
|
||||
#define ES_sig(context) ((context)->uc_mcontext.gregs[ES])
|
||||
#define SS_sig(context) ((context)->uc_mcontext.gregs[SS])
|
||||
|
||||
#define FS_sig(context) ((context)->uc_mcontext.gregs[FS])
|
||||
#define GS_sig(context) ((context)->uc_mcontext.gregs[GS])
|
||||
|
||||
#define EFL_sig(context) ((context)->uc_mcontext.gregs[EFL])
|
||||
|
||||
#define EIP_sig(context) ((context)->uc_mcontext.gregs[EIP])
|
||||
#ifdef R_ESP
|
||||
#define ESP_sig(context) ((context)->uc_mcontext.gregs[R_ESP])
|
||||
#else
|
||||
#define ESP_sig(context) ((context)->uc_mcontext.gregs[ESP])
|
||||
#endif
|
||||
#ifdef TRAPNO
|
||||
#define TRAP_sig(context) ((context)->uc_mcontext.gregs[TRAPNO])
|
||||
#endif
|
||||
|
||||
#endif /* svr4 || SCO_DS */
|
||||
|
||||
|
||||
extern void WINAPI REGS_FUNC(RtlRaiseException)( EXCEPTION_RECORD *rec, CONTEXT *context );
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* handler_init
|
||||
*
|
||||
* Initialization code for a signal handler.
|
||||
* Restores the proper %fs value for the current thread.
|
||||
*/
|
||||
static inline void handler_init( CONTEXT *context, const SIGCONTEXT *sigcontext )
|
||||
{
|
||||
WORD fs;
|
||||
/* get %fs at time of the fault */
|
||||
#ifdef FS_sig
|
||||
fs = FS_sig(sigcontext);
|
||||
#else
|
||||
GET_FS(fs);
|
||||
#endif
|
||||
context->SegFs = fs;
|
||||
/* now restore a proper %fs for the fault handler */
|
||||
if (!IS_SELECTOR_SYSTEM(CS_sig(sigcontext))) fs = SYSLEVEL_Win16CurrentTeb;
|
||||
if (!fs) fs = SYSLEVEL_EmergencyTeb;
|
||||
SET_FS(fs);
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* save_context
|
||||
*
|
||||
* Set the register values from a sigcontext.
|
||||
*/
|
||||
static void save_context( CONTEXT *context, const SIGCONTEXT *sigcontext )
|
||||
{
|
||||
context->Eax = EAX_sig(sigcontext);
|
||||
context->Ebx = EBX_sig(sigcontext);
|
||||
context->Ecx = ECX_sig(sigcontext);
|
||||
context->Edx = EDX_sig(sigcontext);
|
||||
context->Esi = ESI_sig(sigcontext);
|
||||
context->Edi = EDI_sig(sigcontext);
|
||||
context->Ebp = EBP_sig(sigcontext);
|
||||
context->EFlags = EFL_sig(sigcontext);
|
||||
context->Eip = EIP_sig(sigcontext);
|
||||
context->Esp = ESP_sig(sigcontext);
|
||||
context->SegCs = LOWORD(CS_sig(sigcontext));
|
||||
context->SegDs = LOWORD(DS_sig(sigcontext));
|
||||
context->SegEs = LOWORD(ES_sig(sigcontext));
|
||||
context->SegSs = LOWORD(SS_sig(sigcontext));
|
||||
/* %fs already handled in handler_init */
|
||||
#ifdef GS_sig
|
||||
context->SegGs = LOWORD(GS_sig(sigcontext));
|
||||
#else
|
||||
GET_GS( context->SegGs );
|
||||
context->SegGs &= 0xffff;
|
||||
#endif
|
||||
if (ISV86(context)) V86BASE(context) = (DWORD)DOSMEM_MemoryBase(0);
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* restore_context
|
||||
*
|
||||
* Build a sigcontext from the register values.
|
||||
*/
|
||||
static void restore_context( const CONTEXT *context, SIGCONTEXT *sigcontext )
|
||||
{
|
||||
EAX_sig(sigcontext) = context->Eax;
|
||||
EBX_sig(sigcontext) = context->Ebx;
|
||||
ECX_sig(sigcontext) = context->Ecx;
|
||||
EDX_sig(sigcontext) = context->Edx;
|
||||
ESI_sig(sigcontext) = context->Esi;
|
||||
EDI_sig(sigcontext) = context->Edi;
|
||||
EBP_sig(sigcontext) = context->Ebp;
|
||||
EFL_sig(sigcontext) = context->EFlags;
|
||||
EIP_sig(sigcontext) = context->Eip;
|
||||
ESP_sig(sigcontext) = context->Esp;
|
||||
CS_sig(sigcontext) = context->SegCs;
|
||||
DS_sig(sigcontext) = context->SegDs;
|
||||
ES_sig(sigcontext) = context->SegEs;
|
||||
SS_sig(sigcontext) = context->SegSs;
|
||||
#ifdef FS_sig
|
||||
FS_sig(sigcontext) = context->SegFs;
|
||||
#else
|
||||
SET_FS( context->SegFs );
|
||||
#endif
|
||||
#ifdef GS_sig
|
||||
GS_sig(sigcontext) = context->SegGs;
|
||||
#else
|
||||
SET_GS( context->SegGs );
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* save_fpu
|
||||
*
|
||||
* Set the FPU context from a sigcontext.
|
||||
*/
|
||||
static void inline save_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
|
||||
{
|
||||
#ifdef FPU_sig
|
||||
if (FPU_sig(sigcontext))
|
||||
{
|
||||
context->FloatSave = *FPU_sig(sigcontext);
|
||||
return;
|
||||
}
|
||||
#endif /* FPU_sig */
|
||||
#ifdef __GNUC__
|
||||
__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
|
||||
#endif /* __GNUC__ */
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* restore_fpu
|
||||
*
|
||||
* Restore the FPU context to a sigcontext.
|
||||
*/
|
||||
static void inline restore_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
|
||||
{
|
||||
#ifdef FPU_sig
|
||||
if (FPU_sig(sigcontext))
|
||||
{
|
||||
*FPU_sig(sigcontext) = context->FloatSave;
|
||||
return;
|
||||
}
|
||||
#endif /* FPU_sig */
|
||||
#ifdef __GNUC__
|
||||
/* avoid nested exceptions */
|
||||
context->FloatSave.StatusWord &= context->FloatSave.ControlWord | 0xffffff80;
|
||||
__asm__ __volatile__( "frstor %0; fwait" : : "m" (context->FloatSave) );
|
||||
#endif /* __GNUC__ */
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* get_fpu_code
|
||||
*
|
||||
* Get the FPU exception code from the FPU status.
|
||||
*/
|
||||
static inline DWORD get_fpu_code( const CONTEXT *context )
|
||||
{
|
||||
DWORD status = context->FloatSave.StatusWord;
|
||||
|
||||
if (status & 0x01) /* IE */
|
||||
{
|
||||
if (status & 0x40) /* SF */
|
||||
return EXCEPTION_FLT_STACK_CHECK;
|
||||
else
|
||||
return EXCEPTION_FLT_INVALID_OPERATION;
|
||||
}
|
||||
if (status & 0x02) return EXCEPTION_FLT_DENORMAL_OPERAND; /* DE flag */
|
||||
if (status & 0x04) return EXCEPTION_FLT_DIVIDE_BY_ZERO; /* ZE flag */
|
||||
if (status & 0x08) return EXCEPTION_FLT_OVERFLOW; /* OE flag */
|
||||
if (status & 0x10) return EXCEPTION_FLT_UNDERFLOW; /* UE flag */
|
||||
if (status & 0x20) return EXCEPTION_FLT_INEXACT_RESULT; /* PE flag */
|
||||
return EXCEPTION_FLT_INVALID_OPERATION; /* generic error */
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* segv_handler
|
||||
*
|
||||
* Handler for SIGSEGV and related errors.
|
||||
*/
|
||||
static HANDLER_DEF(segv_handler)
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
|
||||
handler_init( &context, HANDLER_CONTEXT );
|
||||
|
||||
#if defined(TRAP_sig) && defined(CR2_sig)
|
||||
/* we want the page-fault case to be fast */
|
||||
if (TRAP_sig(HANDLER_CONTEXT) == 14)
|
||||
if (VIRTUAL_HandleFault( (LPVOID)CR2_sig(HANDLER_CONTEXT) )) return;
|
||||
#endif
|
||||
|
||||
save_context( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionAddress = (LPVOID)context.Eip;
|
||||
rec.NumberParameters = 0;
|
||||
|
||||
#ifdef TRAP_sig
|
||||
switch(TRAP_sig(HANDLER_CONTEXT))
|
||||
{
|
||||
case 4: /* Overflow exception */
|
||||
rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
|
||||
break;
|
||||
case 5: /* Bound range exception */
|
||||
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
|
||||
break;
|
||||
case 6: /* Invalid opcode exception */
|
||||
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
||||
break;
|
||||
case 12: /* Stack fault */
|
||||
rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
|
||||
break;
|
||||
case 11: /* Segment not present exception */
|
||||
case 13: /* General protection fault */
|
||||
if (INSTR_EmulateInstruction( &context )) goto restore;
|
||||
rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
|
||||
break;
|
||||
case 14: /* Page fault */
|
||||
#ifdef CR2_sig
|
||||
rec.NumberParameters = 2;
|
||||
#ifdef ERROR_sig
|
||||
rec.ExceptionInformation[0] = (ERROR_sig(HANDLER_CONTEXT) & 2) != 0;
|
||||
#else
|
||||
rec.ExceptionInformation[0] = 0;
|
||||
#endif /* ERROR_sig */
|
||||
rec.ExceptionInformation[1] = CR2_sig(HANDLER_CONTEXT);
|
||||
#endif /* CR2_sig */
|
||||
rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
|
||||
break;
|
||||
case 17: /* Alignment check exception */
|
||||
/* FIXME: pass through exception handler first? */
|
||||
if (context.EFlags & 0x00040000)
|
||||
{
|
||||
/* Disable AC flag, return */
|
||||
context.EFlags &= ~0x00040000;
|
||||
goto restore;
|
||||
}
|
||||
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
|
||||
break;
|
||||
default:
|
||||
ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
|
||||
/* fall through */
|
||||
case 2: /* NMI interrupt */
|
||||
case 7: /* Device not available exception */
|
||||
case 8: /* Double fault exception */
|
||||
case 10: /* Invalid TSS exception */
|
||||
case 15: /* Unknown exception */
|
||||
case 18: /* Machine check exception */
|
||||
case 19: /* Cache flush exception */
|
||||
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
||||
break;
|
||||
}
|
||||
#else /* TRAP_sig */
|
||||
if (INSTR_EmulateInstruction( &context )) return;
|
||||
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION; /* generic error */
|
||||
#endif /* TRAP_sig */
|
||||
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
restore:
|
||||
restore_context( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* trap_handler
|
||||
*
|
||||
* Handler for SIGTRAP.
|
||||
*/
|
||||
static HANDLER_DEF(trap_handler)
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
|
||||
handler_init( &context, HANDLER_CONTEXT );
|
||||
|
||||
#ifdef TRAP_sig
|
||||
rec.ExceptionCode = (TRAP_sig(HANDLER_CONTEXT) == 1) ?
|
||||
EXCEPTION_SINGLE_STEP : EXCEPTION_BREAKPOINT;
|
||||
#else
|
||||
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
|
||||
#endif /* TRAP_sig */
|
||||
|
||||
save_context( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Eip;
|
||||
rec.NumberParameters = 0;
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
restore_context( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* fpe_handler
|
||||
*
|
||||
* Handler for SIGFPE.
|
||||
*/
|
||||
static HANDLER_DEF(fpe_handler)
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
|
||||
handler_init( &context, HANDLER_CONTEXT );
|
||||
|
||||
save_fpu( &context, HANDLER_CONTEXT );
|
||||
|
||||
#ifdef TRAP_sig
|
||||
switch(TRAP_sig(HANDLER_CONTEXT))
|
||||
{
|
||||
case 0: /* Division by zero exception */
|
||||
rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
|
||||
break;
|
||||
case 9: /* Coprocessor segment overrun */
|
||||
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
|
||||
break;
|
||||
case 16: /* Floating point exception */
|
||||
rec.ExceptionCode = get_fpu_code( &context );
|
||||
break;
|
||||
default:
|
||||
ERR( "Got unexpected trap %ld\n", TRAP_sig(HANDLER_CONTEXT) );
|
||||
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
|
||||
break;
|
||||
}
|
||||
#else /* TRAP_sig */
|
||||
rec.ExceptionCode = get_fpu_code( &context );
|
||||
#endif /* TRAP_sig */
|
||||
|
||||
save_context( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Eip;
|
||||
rec.NumberParameters = 0;
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
restore_context( &context, HANDLER_CONTEXT );
|
||||
restore_fpu( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* int_handler
|
||||
*
|
||||
* Handler for SIGINT.
|
||||
*/
|
||||
static HANDLER_DEF(int_handler)
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
|
||||
handler_init( &context, HANDLER_CONTEXT );
|
||||
save_context( &context, HANDLER_CONTEXT );
|
||||
rec.ExceptionCode = CONTROL_C_EXIT;
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Eip;
|
||||
rec.NumberParameters = 0;
|
||||
REGS_FUNC(RtlRaiseException)( &rec, &context );
|
||||
restore_context( &context, HANDLER_CONTEXT );
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* set_handler
|
||||
*
|
||||
* Set a signal handler
|
||||
*/
|
||||
static int set_handler( int sig, void (*func)() )
|
||||
{
|
||||
#ifdef linux
|
||||
struct kernel_sigaction sig_act;
|
||||
sig_act.sa_handler = func;
|
||||
sig_act.sa_flags = SA_RESTART | SA_NOMASK;
|
||||
sig_act.sa_mask = 0;
|
||||
/* point to the top of the stack */
|
||||
sig_act.sa_restorer = (char *)NtCurrentTeb()->signal_stack + SIGNAL_STACK_SIZE;
|
||||
return wine_sigaction( sig, &sig_act, NULL );
|
||||
#else /* linux */
|
||||
struct sigaction sig_act;
|
||||
sig_act.sa_handler = func;
|
||||
sigemptyset( &sig_act.sa_mask );
|
||||
|
||||
# if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
||||
sig_act.sa_flags = SA_ONSTACK;
|
||||
# elif defined (__svr4__) || defined(_SCO_DS)
|
||||
sig_act.sa_flags = SA_SIGINFO | SA_ONSTACK | SA_RESTART;
|
||||
# elif defined(__EMX__)
|
||||
sig_act.sa_flags = 0; /* FIXME: EMX has only SA_ACK and SA_SYSV */
|
||||
# else
|
||||
sig_act.sa_flags = 0;
|
||||
# endif
|
||||
return sigaction( sig, &sig_act, NULL );
|
||||
#endif /* linux */
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_Init
|
||||
*/
|
||||
BOOL SIGNAL_Init(void)
|
||||
{
|
||||
#ifdef HAVE_WORKING_SIGALTSTACK
|
||||
struct sigaltstack ss;
|
||||
if ((ss.ss_sp = NtCurrentTeb()->signal_stack))
|
||||
{
|
||||
ss.ss_size = SIGNAL_STACK_SIZE;
|
||||
ss.ss_flags = 0;
|
||||
if (sigaltstack(&ss, NULL) < 0)
|
||||
{
|
||||
perror("sigaltstack");
|
||||
/* fall through on error and try it differently */
|
||||
}
|
||||
}
|
||||
#endif /* HAVE_SIGALTSTACK */
|
||||
|
||||
/* ignore SIGPIPE so that WINSOCK can get a EPIPE error instead */
|
||||
signal( SIGPIPE, SIG_IGN );
|
||||
/* automatic child reaping to avoid zombies */
|
||||
signal( SIGCHLD, SIG_IGN );
|
||||
|
||||
if (set_handler( SIGINT, (void (*)())int_handler ) == -1) goto error;
|
||||
if (set_handler( SIGFPE, (void (*)())fpe_handler ) == -1) goto error;
|
||||
if (set_handler( SIGSEGV, (void (*)())segv_handler ) == -1) goto error;
|
||||
if (set_handler( SIGILL, (void (*)())segv_handler ) == -1) goto error;
|
||||
#ifdef SIGBUS
|
||||
if (set_handler( SIGBUS, (void (*)())segv_handler ) == -1) goto error;
|
||||
#endif
|
||||
#ifdef SIGTRAP
|
||||
if (set_handler( SIGTRAP, (void (*)())trap_handler ) == -1) goto error;
|
||||
#endif
|
||||
return TRUE;
|
||||
|
||||
error:
|
||||
perror("sigaction");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
#endif /* __i386__ */
|
||||
|
|
@ -3516,7 +3516,7 @@ static HRESULT WINAPI DGA_IDirectDrawImpl_SetDisplayMode(
|
|||
TSXF86DGASetViewPort(display,DefaultScreen(display),0,0);
|
||||
|
||||
#ifdef RESTORE_SIGNALS
|
||||
EXC_InitHandlers();
|
||||
SIGNAL_Init();
|
||||
#endif
|
||||
return DD_OK;
|
||||
}
|
||||
|
|
@ -3918,7 +3918,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_RestoreDisplayMode(LPDIRECTDRAW2 ifac
|
|||
Sleep(1000);
|
||||
TSXF86DGADirectVideo(display,DefaultScreen(display),0);
|
||||
#ifdef RESTORE_SIGNALS
|
||||
EXC_InitHandlers();
|
||||
SIGNAL_Init();
|
||||
#endif
|
||||
return DD_OK;
|
||||
}
|
||||
|
|
@ -3969,7 +3969,7 @@ static ULONG WINAPI DGA_IDirectDraw2Impl_Release(LPDIRECTDRAW2 iface) {
|
|||
#endif
|
||||
|
||||
#ifdef RESTORE_SIGNALS
|
||||
EXC_InitHandlers();
|
||||
SIGNAL_Init();
|
||||
#endif
|
||||
HeapFree(GetProcessHeap(),0,This);
|
||||
return 0;
|
||||
|
|
@ -4958,7 +4958,7 @@ static HRESULT WINAPI DGA_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnk
|
|||
depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
|
||||
_common_depth_to_pixelformat(depth, &((*ilplpDD)->d.directdraw_pixelformat), &((*ilplpDD)->d.screen_pixelformat), NULL);
|
||||
#ifdef RESTORE_SIGNALS
|
||||
EXC_InitHandlers();
|
||||
SIGNAL_Init();
|
||||
#endif
|
||||
|
||||
return DD_OK;
|
||||
|
|
|
|||
|
|
@ -9,7 +9,6 @@
|
|||
|
||||
#include <sys/types.h> /* u_long ... */
|
||||
#include "windef.h"
|
||||
#include "sig_context.h"
|
||||
#include "miscemu.h"
|
||||
|
||||
#define STEP_FLAG 0x100 /* single step flag */
|
||||
|
|
|
|||
|
|
@ -10,7 +10,6 @@
|
|||
#include <sys/types.h> /* pid_t */
|
||||
#include "winbase.h" /* for LPSTARTUPINFO32A */
|
||||
#include "winnt.h" /* for PCONTEXT */
|
||||
#include "sig_context.h"
|
||||
|
||||
typedef struct _DOSSYSTEM {
|
||||
int id;
|
||||
|
|
|
|||
|
|
@ -184,10 +184,6 @@ extern int DPMI_CallRMProc(CONTEXT86*,LPWORD,int,int);
|
|||
/* msdos/xms.c */
|
||||
extern void WINAPI XMS_Handler(CONTEXT86*);
|
||||
|
||||
/* loader/signal.c */
|
||||
extern BOOL SIGNAL_Init(void);
|
||||
extern void SIGNAL_SetHandler( int sig, void (*func)() );
|
||||
|
||||
/* misc/aspi.c */
|
||||
extern void ASPI_DOS_HandleInt(CONTEXT86 *context);
|
||||
|
||||
|
|
|
|||
|
|
@ -1,268 +0,0 @@
|
|||
/*
|
||||
* Signal context definitions
|
||||
*
|
||||
* Copyright 1995 Alexandre Julliard
|
||||
*/
|
||||
|
||||
#ifndef __WINE_SIG_CONTEXT_H
|
||||
#define __WINE_SIG_CONTEXT_H
|
||||
|
||||
#ifdef __i386__
|
||||
|
||||
#ifdef linux
|
||||
typedef struct
|
||||
{
|
||||
unsigned short sc_gs, __gsh;
|
||||
unsigned short sc_fs, __fsh;
|
||||
unsigned short sc_es, __esh;
|
||||
unsigned short sc_ds, __dsh;
|
||||
unsigned long sc_edi;
|
||||
unsigned long sc_esi;
|
||||
unsigned long sc_ebp;
|
||||
unsigned long sc_esp;
|
||||
unsigned long sc_ebx;
|
||||
unsigned long sc_edx;
|
||||
unsigned long sc_ecx;
|
||||
unsigned long sc_eax;
|
||||
unsigned long sc_trapno;
|
||||
unsigned long sc_err;
|
||||
unsigned long sc_eip;
|
||||
unsigned short sc_cs, __csh;
|
||||
unsigned long sc_eflags;
|
||||
unsigned long esp_at_signal;
|
||||
unsigned short sc_ss, __ssh;
|
||||
unsigned long i387;
|
||||
unsigned long oldmask;
|
||||
unsigned long cr2;
|
||||
} SIGCONTEXT;
|
||||
#define __HAVE_SIGCONTEXT
|
||||
|
||||
#define HANDLER_DEF(name) void name (int signal, SIGCONTEXT __context)
|
||||
#define HANDLER_CONTEXT (&__context)
|
||||
|
||||
#endif /* linux */
|
||||
|
||||
#ifdef BSDI
|
||||
|
||||
#define EAX_sig(context) ((context)->tf_eax)
|
||||
#define EBX_sig(context) ((context)->tf_ebx)
|
||||
#define ECX_sig(context) ((context)->tf_ecx)
|
||||
#define EDX_sig(context) ((context)->tf_edx)
|
||||
#define ESI_sig(context) ((context)->tf_esi)
|
||||
#define EDI_sig(context) ((context)->tf_edi)
|
||||
#define EBP_sig(context) ((context)->tf_ebp)
|
||||
|
||||
#define CS_sig(context) ((context)->tf_cs)
|
||||
#define DS_sig(context) ((context)->tf_ds)
|
||||
#define ES_sig(context) ((context)->tf_es)
|
||||
#define SS_sig(context) ((context)->tf_ss)
|
||||
|
||||
#include <machine/frame.h>
|
||||
typedef struct trapframe SIGCONTEXT;
|
||||
#define __HAVE_SIGCONTEXT
|
||||
|
||||
#define HANDLER_DEF(name) void name(int signal, int code, SIGCONTEXT *__context)
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#define EFL_sig(context) ((context)->tf_eflags)
|
||||
|
||||
#define EIP_sig(context) (*((unsigned long*)&(context)->tf_eip))
|
||||
#define ESP_sig(context) (*((unsigned long*)&(context)->tf_esp))
|
||||
|
||||
#endif /* bsdi */
|
||||
|
||||
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
||||
|
||||
#include <signal.h>
|
||||
typedef struct sigcontext SIGCONTEXT;
|
||||
#define __HAVE_SIGCONTEXT
|
||||
|
||||
#define HANDLER_DEF(name) void name(int signal, int code, SIGCONTEXT *__context)
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#endif /* FreeBSD */
|
||||
|
||||
#if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
|
||||
|
||||
#include <signal.h>
|
||||
#ifdef _SCO_DS
|
||||
#include <sys/regset.h>
|
||||
#endif
|
||||
/* Solaris kludge */
|
||||
#undef ERR
|
||||
#include <sys/ucontext.h>
|
||||
#undef ERR
|
||||
typedef struct ucontext SIGCONTEXT;
|
||||
#define __HAVE_SIGCONTEXT
|
||||
|
||||
#define HANDLER_DEF(name) void name(int signal, void *siginfo, SIGCONTEXT *__context)
|
||||
#define HANDLER_CONTEXT __context
|
||||
|
||||
#endif /* svr4 || SCO_DS */
|
||||
|
||||
#ifdef __EMX__
|
||||
typedef struct _fpreg /* Note 1 */
|
||||
{
|
||||
ULONG losig;
|
||||
ULONG hisig;
|
||||
USHORT signexp;
|
||||
} FPREG;
|
||||
typedef FPREG *PFPREG;
|
||||
|
||||
typedef struct _CONTEXT /* Note 1 */
|
||||
{
|
||||
ULONG ContextFlags;
|
||||
ULONG ctx_env[7];
|
||||
FPREG ctx_stack[8];
|
||||
ULONG ctx_SegGs;
|
||||
ULONG ctx_SegFs;
|
||||
ULONG ctx_SegEs;
|
||||
ULONG ctx_SegDs;
|
||||
ULONG ctx_RegEdi;
|
||||
ULONG ctx_RegEsi;
|
||||
ULONG ctx_RegEax;
|
||||
ULONG ctx_RegEbx;
|
||||
ULONG ctx_RegEcx;
|
||||
ULONG ctx_RegEdx;
|
||||
ULONG ctx_RegEbp;
|
||||
ULONG ctx_RegEip;
|
||||
ULONG ctx_SegCs;
|
||||
ULONG ctx_EFlags;
|
||||
ULONG ctx_RegEsp;
|
||||
ULONG ctx_SegSs;
|
||||
} SIGCONTEXT;
|
||||
#define __HAVE_SIGCONTEXT
|
||||
/*typedef CONTEXTRECORD *PCONTEXTRECORD;*/
|
||||
|
||||
#endif /* __EMX__ */
|
||||
|
||||
|
||||
#if defined(linux) || defined(__NetBSD__) || defined(__FreeBSD__) \
|
||||
|| defined(__OpenBSD__)
|
||||
|
||||
#define EAX_sig(context) ((context)->sc_eax)
|
||||
#define EBX_sig(context) ((context)->sc_ebx)
|
||||
#define ECX_sig(context) ((context)->sc_ecx)
|
||||
#define EDX_sig(context) ((context)->sc_edx)
|
||||
#define ESI_sig(context) ((context)->sc_esi)
|
||||
#define EDI_sig(context) ((context)->sc_edi)
|
||||
#define EBP_sig(context) ((context)->sc_ebp)
|
||||
|
||||
#define CS_sig(context) ((context)->sc_cs)
|
||||
#define DS_sig(context) ((context)->sc_ds)
|
||||
#define ES_sig(context) ((context)->sc_es)
|
||||
#define SS_sig(context) ((context)->sc_ss)
|
||||
|
||||
#ifdef linux
|
||||
/* FS and GS are now in the sigcontext struct of FreeBSD, but not
|
||||
* saved by the exception handling. duh.
|
||||
*/
|
||||
#define FS_sig(context) ((context)->sc_fs)
|
||||
#define GS_sig(context) ((context)->sc_gs)
|
||||
#define CR2_sig(context) ((context)->cr2)
|
||||
#define TRAP_sig(context) ((context)->sc_trapno)
|
||||
#define ERROR_sig(context) ((context)->sc_err)
|
||||
#define FPU_sig(context) ((FLOATING_SAVE_AREA*)((context)->i387))
|
||||
#endif
|
||||
|
||||
#ifndef __FreeBSD__
|
||||
#define EFL_sig(context) ((context)->sc_eflags)
|
||||
#else
|
||||
#define EFL_sig(context) ((context)->sc_efl)
|
||||
/* FreeBSD, see i386/i386/traps.c::trap_pfault va->err kludge */
|
||||
#define CR2_sig(context) ((context)->sc_err)
|
||||
#endif
|
||||
|
||||
|
||||
#define EIP_sig(context) (*((unsigned long*)&(context)->sc_eip))
|
||||
#define ESP_sig(context) (*((unsigned long*)&(context)->sc_esp))
|
||||
|
||||
#endif /* linux || __NetBSD__ || __FreeBSD__ || __OpenBSD__ */
|
||||
|
||||
#if defined(__svr4__) || defined(_SCO_DS) || defined(__sun)
|
||||
|
||||
#ifdef _SCO_DS
|
||||
#define gregs regs
|
||||
#endif
|
||||
|
||||
#define EAX_sig(context) ((context)->uc_mcontext.gregs[EAX])
|
||||
#define EBX_sig(context) ((context)->uc_mcontext.gregs[EBX])
|
||||
#define ECX_sig(context) ((context)->uc_mcontext.gregs[ECX])
|
||||
#define EDX_sig(context) ((context)->uc_mcontext.gregs[EDX])
|
||||
#define ESI_sig(context) ((context)->uc_mcontext.gregs[ESI])
|
||||
#define EDI_sig(context) ((context)->uc_mcontext.gregs[EDI])
|
||||
#define EBP_sig(context) ((context)->uc_mcontext.gregs[EBP])
|
||||
|
||||
#define CS_sig(context) ((context)->uc_mcontext.gregs[CS])
|
||||
#define DS_sig(context) ((context)->uc_mcontext.gregs[DS])
|
||||
#define ES_sig(context) ((context)->uc_mcontext.gregs[ES])
|
||||
#define SS_sig(context) ((context)->uc_mcontext.gregs[SS])
|
||||
|
||||
#define FS_sig(context) ((context)->uc_mcontext.gregs[FS])
|
||||
#define GS_sig(context) ((context)->uc_mcontext.gregs[GS])
|
||||
|
||||
#define EFL_sig(context) ((context)->uc_mcontext.gregs[EFL])
|
||||
|
||||
#define EIP_sig(context) ((context)->uc_mcontext.gregs[EIP])
|
||||
#ifdef R_ESP
|
||||
#define ESP_sig(context) ((context)->uc_mcontext.gregs[R_ESP])
|
||||
#else
|
||||
#define ESP_sig(context) ((context)->uc_mcontext.gregs[ESP])
|
||||
#endif
|
||||
#ifdef TRAPNO
|
||||
#define TRAP_sig(context) ((context)->uc_mcontext.gregs[TRAPNO])
|
||||
#endif
|
||||
|
||||
#endif /* svr4 || SCO_DS */
|
||||
|
||||
#ifdef __EMX__
|
||||
|
||||
#define EAX_sig(context) ((context)->ctx_RegEax)
|
||||
#define EBX_sig(context) ((context)->ctx_RegEbx)
|
||||
#define ECX_sig(context) ((context)->ctx_RegEcx)
|
||||
#define EDX_sig(context) ((context)->ctx_RegEdx)
|
||||
#define ESI_sig(context) ((context)->ctx_RegEsi)
|
||||
#define EDI_sig(context) ((context)->ctx_RegEdi)
|
||||
#define EBP_sig(context) ((context)->ctx_RegEbp)
|
||||
#define ESP_sig(context) ((context)->ctx_RegEsp)
|
||||
#define CS_sig(context) ((context)->ctx_SegCs)
|
||||
#define DS_sig(context) ((context)->ctx_SegDs)
|
||||
#define ES_sig(context) ((context)->ctx_SegEs)
|
||||
#define SS_sig(context) ((context)->ctx_SegSs)
|
||||
#define FS_sig(context) ((context)->ctx_SegFs)
|
||||
#define GS_sig(context) ((context)->ctx_SegGs)
|
||||
#define EFL_sig(context) ((context)->ctx_EFlags)
|
||||
#define EIP_sig(context) ((context)->ctx_RegEip)
|
||||
|
||||
#endif /* __EMX__ */
|
||||
|
||||
#ifdef FS_sig
|
||||
#include "syslevel.h"
|
||||
#define HANDLER_INIT() \
|
||||
do { int fs = IS_SELECTOR_SYSTEM(CS_sig(HANDLER_CONTEXT)) ? \
|
||||
FS_sig(HANDLER_CONTEXT) : SYSLEVEL_Win16CurrentTeb; \
|
||||
if (!fs) fs = SYSLEVEL_EmergencyTeb; \
|
||||
SET_FS(fs); } while (0)
|
||||
#else
|
||||
#define HANDLER_INIT() \
|
||||
do { int fs; GET_FS(fs); fs &= 0xffff; \
|
||||
if (!IS_SELECTOR_SYSTEM(CS_sig(HANDLER_CONTEXT))) \
|
||||
fs = SYSLEVEL_Win16CurrentTeb; \
|
||||
if (!fs) fs = SYSLEVEL_EmergencyTeb; \
|
||||
SET_FS(fs); } while (0)
|
||||
#endif
|
||||
|
||||
#else /* __i386__ */
|
||||
|
||||
#define HANDLER_DEF(name) void name (int signal)
|
||||
#define HANDLER_INIT() /* nothing */
|
||||
|
||||
#endif /* __i386__ */
|
||||
|
||||
#ifndef __HAVE_SIGCONTEXT
|
||||
/* empty entry for non x86 architectures mostly. */
|
||||
typedef DWORD SIGCONTEXT;
|
||||
#define HANDLER_CONTEXT 0
|
||||
#endif
|
||||
|
||||
#endif /* __WINE_SIG_CONTEXT_H */
|
||||
|
|
@ -169,7 +169,7 @@ static inline EXCEPTION_FRAME * WINE_UNUSED EXC_pop_frame( EXCEPTION_FRAME *fram
|
|||
typedef DWORD (*DEBUGHOOK)( EXCEPTION_RECORD *, CONTEXT *, BOOL );
|
||||
extern void EXC_SetDebugEventHook( DEBUGHOOK hook );
|
||||
extern DEBUGHOOK EXC_GetDebugEventHook(void);
|
||||
extern void EXC_InitHandlers(void);
|
||||
extern BOOL SIGNAL_Init(void);
|
||||
#endif
|
||||
|
||||
#endif /* __WINE_WINE_EXCEPTION_H */
|
||||
|
|
|
|||
|
|
@ -15,7 +15,6 @@ C_SRCS = \
|
|||
pe_image.c \
|
||||
pe_resource.c \
|
||||
resource.c \
|
||||
signal.c \
|
||||
task.c
|
||||
|
||||
GLUE = task.c
|
||||
|
|
|
|||
|
|
@ -65,9 +65,6 @@ BOOL MAIN_MainInit(void)
|
|||
/* Initialize syslevel handling */
|
||||
SYSLEVEL_Init();
|
||||
|
||||
/* Initialize signal handling */
|
||||
if (!SIGNAL_Init()) return FALSE;
|
||||
|
||||
/* Load the configuration file */
|
||||
if (!PROFILE_LoadWineIni()) return FALSE;
|
||||
|
||||
|
|
|
|||
161
loader/signal.c
161
loader/signal.c
|
|
@ -1,161 +0,0 @@
|
|||
/*
|
||||
* Wine signal handling
|
||||
*
|
||||
* Copyright 1995 Alexandre Julliard
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <signal.h>
|
||||
#include <errno.h>
|
||||
#include <time.h>
|
||||
#include <setjmp.h>
|
||||
|
||||
#include <sys/time.h>
|
||||
#include <sys/timeb.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
|
||||
#ifdef HAVE_SYS_PARAM_H
|
||||
# include <sys/param.h>
|
||||
#endif
|
||||
#ifdef HAVE_SYSCALL_H
|
||||
# include <syscall.h>
|
||||
#else
|
||||
# ifdef HAVE_SYS_SYSCALL_H
|
||||
# include <sys/syscall.h>
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#include "winsock.h"
|
||||
#include "global.h"
|
||||
#include "options.h"
|
||||
#include "miscemu.h"
|
||||
#include "dosexe.h"
|
||||
#include "thread.h"
|
||||
#include "wine/exception.h"
|
||||
#include "debugtools.h"
|
||||
|
||||
|
||||
/* Linux sigaction function */
|
||||
|
||||
#if defined(linux) && defined(__i386__)
|
||||
/* This is the sigaction structure from the Linux 2.1.20 kernel. */
|
||||
|
||||
#undef sa_handler
|
||||
struct kernel_sigaction
|
||||
{
|
||||
void (*sa_handler)();
|
||||
unsigned long sa_mask;
|
||||
unsigned long sa_flags;
|
||||
void (*sa_restorer)();
|
||||
};
|
||||
|
||||
/* Similar to the sigaction function in libc, except it leaves alone the
|
||||
restorer field, which is used to specify the signal stack address */
|
||||
static inline int wine_sigaction( int sig, struct kernel_sigaction *new,
|
||||
struct kernel_sigaction *old )
|
||||
{
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__( "pushl %%ebx\n\t"
|
||||
"movl %2,%%ebx\n\t"
|
||||
"int $0x80\n\t"
|
||||
"popl %%ebx"
|
||||
: "=a" (sig)
|
||||
: "0" (SYS_sigaction),
|
||||
"r" (sig),
|
||||
"c" (new),
|
||||
"d" (old) );
|
||||
#else
|
||||
__asm__ __volatile__( "int $0x80"
|
||||
: "=a" (sig)
|
||||
: "0" (SYS_sigaction),
|
||||
"b" (sig),
|
||||
"c" (new),
|
||||
"d" (old) );
|
||||
#endif /* __PIC__ */
|
||||
if (sig>=0)
|
||||
return 0;
|
||||
errno = -sig;
|
||||
return -1;
|
||||
}
|
||||
#endif /* linux && __i386__ */
|
||||
|
||||
/* Signal stack */
|
||||
|
||||
static char SIGNAL_Stack[16384];
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_SetHandler
|
||||
*/
|
||||
void SIGNAL_SetHandler( int sig, void (*func)() )
|
||||
{
|
||||
int ret;
|
||||
|
||||
#if defined(linux) && defined(__i386__)
|
||||
|
||||
struct kernel_sigaction sig_act;
|
||||
sig_act.sa_handler = func;
|
||||
sig_act.sa_flags = SA_RESTART | SA_NOMASK;
|
||||
sig_act.sa_mask = 0;
|
||||
/* Point to the top of the stack, minus 4 just in case, and make
|
||||
it aligned */
|
||||
sig_act.sa_restorer =
|
||||
(void (*)())((int)(SIGNAL_Stack + sizeof(SIGNAL_Stack) - 4) & ~3);
|
||||
ret = wine_sigaction( sig, &sig_act, NULL );
|
||||
|
||||
#else /* linux && __i386__ */
|
||||
|
||||
struct sigaction sig_act;
|
||||
sig_act.sa_handler = func;
|
||||
sigemptyset( &sig_act.sa_mask );
|
||||
|
||||
# if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
|
||||
sig_act.sa_flags = SA_ONSTACK;
|
||||
# elif defined (__svr4__) || defined(_SCO_DS)
|
||||
sig_act.sa_flags = SA_SIGINFO | SA_ONSTACK | SA_RESTART;
|
||||
# elif defined(__EMX__)
|
||||
sig_act.sa_flags = 0; /* FIXME: EMX has only SA_ACK and SA_SYSV */
|
||||
# else
|
||||
sig_act.sa_flags = 0;
|
||||
# endif
|
||||
ret = sigaction( sig, &sig_act, NULL );
|
||||
|
||||
#endif /* linux && __i386__ */
|
||||
|
||||
if (ret < 0)
|
||||
{
|
||||
perror( "sigaction" );
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* SIGNAL_Init
|
||||
*/
|
||||
BOOL SIGNAL_Init(void)
|
||||
{
|
||||
#ifdef HAVE_WORKING_SIGALTSTACK
|
||||
struct sigaltstack ss;
|
||||
ss.ss_sp = SIGNAL_Stack;
|
||||
ss.ss_size = sizeof(SIGNAL_Stack);
|
||||
ss.ss_flags = 0;
|
||||
if (sigaltstack(&ss, NULL) < 0)
|
||||
{
|
||||
perror("sigaltstack");
|
||||
/* fall through on error and try it differently */
|
||||
}
|
||||
#endif /* HAVE_SIGALTSTACK */
|
||||
|
||||
/* ignore SIGPIPE so that WINSOCK can get a EPIPE error instead */
|
||||
signal (SIGPIPE, SIG_IGN);
|
||||
/* automatic child reaping to avoid zombies */
|
||||
signal (SIGCHLD, SIG_IGN);
|
||||
EXC_InitHandlers();
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -362,6 +362,9 @@ BOOL PROCESS_Init(void)
|
|||
if (!(SystemHeap = HeapCreate( HEAP_GROWABLE, 0x10000, 0 ))) return FALSE;
|
||||
initial_pdb.system_heap = initial_pdb.heap = SystemHeap;
|
||||
|
||||
/* Initialize signal handling */
|
||||
if (!SIGNAL_Init()) return FALSE;
|
||||
|
||||
/* Create the environment DB of the first process */
|
||||
if (!PROCESS_CreateEnvDB()) return FALSE;
|
||||
|
||||
|
|
|
|||
|
|
@ -28,6 +28,7 @@ static int *ph_errno = &h_errno;
|
|||
#include "thread.h"
|
||||
#include "server.h"
|
||||
#include "winbase.h"
|
||||
#include "wine/exception.h"
|
||||
#include "debugtools.h"
|
||||
|
||||
DEFAULT_DEBUG_CHANNEL(thread)
|
||||
|
|
@ -130,7 +131,16 @@ static void SYSDEPS_StartThread( TEB *teb )
|
|||
{
|
||||
SYSDEPS_SetCurThread( teb );
|
||||
CLIENT_InitThread();
|
||||
SIGNAL_Init();
|
||||
__TRY
|
||||
{
|
||||
teb->startup();
|
||||
}
|
||||
__EXCEPT(UnhandledExceptionFilter)
|
||||
{
|
||||
TerminateThread( GetCurrentThread(), GetExceptionCode() );
|
||||
}
|
||||
__ENDTRY
|
||||
SYSDEPS_ExitThread(); /* should never get here */
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue