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931 lines
28 KiB
C
931 lines
28 KiB
C
/*
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* Sparc signal handling routines
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*
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* Copyright 1999 Ulrich Weigand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef __sparc__
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <signal.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <sys/ucontext.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "winnt.h"
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#include "wine/exception.h"
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#include "ntdll_misc.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(seh);
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static pthread_key_t teb_key;
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typedef int (*wine_signal_handler)(unsigned int sig);
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static wine_signal_handler handlers[256];
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/***********************************************************************
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* dispatch_signal
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*/
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static inline int dispatch_signal(unsigned int sig)
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{
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if (handlers[sig] == NULL) return 0;
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return handlers[sig](sig);
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}
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/*
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* FIXME: All this works only on Solaris for now
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*/
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/**********************************************************************
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* save_context
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*/
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static void save_context( CONTEXT *context, ucontext_t *ucontext )
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{
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/* Special registers */
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context->psr = ucontext->uc_mcontext.gregs[REG_PSR];
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context->pc = ucontext->uc_mcontext.gregs[REG_PC];
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context->npc = ucontext->uc_mcontext.gregs[REG_nPC];
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context->y = ucontext->uc_mcontext.gregs[REG_Y];
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context->wim = 0; /* FIXME */
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context->tbr = 0; /* FIXME */
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/* Global registers */
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context->g0 = 0; /* always */
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context->g1 = ucontext->uc_mcontext.gregs[REG_G1];
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context->g2 = ucontext->uc_mcontext.gregs[REG_G2];
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context->g3 = ucontext->uc_mcontext.gregs[REG_G3];
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context->g4 = ucontext->uc_mcontext.gregs[REG_G4];
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context->g5 = ucontext->uc_mcontext.gregs[REG_G5];
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context->g6 = ucontext->uc_mcontext.gregs[REG_G6];
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context->g7 = ucontext->uc_mcontext.gregs[REG_G7];
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/* Current 'out' registers */
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context->o0 = ucontext->uc_mcontext.gregs[REG_O0];
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context->o1 = ucontext->uc_mcontext.gregs[REG_O1];
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context->o2 = ucontext->uc_mcontext.gregs[REG_O2];
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context->o3 = ucontext->uc_mcontext.gregs[REG_O3];
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context->o4 = ucontext->uc_mcontext.gregs[REG_O4];
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context->o5 = ucontext->uc_mcontext.gregs[REG_O5];
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context->o6 = ucontext->uc_mcontext.gregs[REG_O6];
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context->o7 = ucontext->uc_mcontext.gregs[REG_O7];
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/* FIXME: what if the current register window isn't saved? */
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if ( ucontext->uc_mcontext.gwins && ucontext->uc_mcontext.gwins->wbcnt > 0 )
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{
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/* Current 'local' registers from first register window */
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context->l0 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[0];
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context->l1 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[1];
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context->l2 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[2];
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context->l3 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[3];
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context->l4 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[4];
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context->l5 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[5];
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context->l6 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[6];
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context->l7 = ucontext->uc_mcontext.gwins->wbuf[0].rw_local[7];
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/* Current 'in' registers from first register window */
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context->i0 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[0];
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context->i1 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[1];
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context->i2 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[2];
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context->i3 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[3];
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context->i4 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[4];
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context->i5 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[5];
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context->i6 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[6];
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context->i7 = ucontext->uc_mcontext.gwins->wbuf[0].rw_in[7];
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}
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}
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/**********************************************************************
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* restore_context
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*/
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static void restore_context( CONTEXT *context, ucontext_t *ucontext )
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{
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/* FIXME */
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}
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/**********************************************************************
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* save_fpu
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*/
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static void save_fpu( CONTEXT *context, ucontext_t *ucontext )
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{
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/* FIXME */
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}
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/**********************************************************************
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* restore_fpu
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*/
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static void restore_fpu( CONTEXT *context, ucontext_t *ucontext )
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{
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/* FIXME */
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}
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/**********************************************************************
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* call_stack_handlers
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*
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* Call the stack handlers chain.
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*/
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static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
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{
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EXCEPTION_POINTERS ptrs;
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FIXME( "not implemented on Sparc\n" );
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/* hack: call unhandled exception filter directly */
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ptrs.ExceptionRecord = rec;
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ptrs.ContextRecord = context;
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unhandled_exception_filter( &ptrs );
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return STATUS_UNHANDLED_EXCEPTION;
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}
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/*******************************************************************
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* raise_exception
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*
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* Implementation of NtRaiseException.
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*/
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static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
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{
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NTSTATUS status;
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if (first_chance)
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{
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DWORD c;
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TRACE( "code=%x flags=%x addr=%p ip=%x tid=%04x\n",
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rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
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context->pc, GetCurrentThreadId() );
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for (c = 0; c < rec->NumberParameters; c++)
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TRACE( " info[%d]=%08lx\n", c, rec->ExceptionInformation[c] );
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if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
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{
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if (rec->ExceptionInformation[1] >> 16)
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MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
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rec->ExceptionAddress,
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(char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
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else
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MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
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rec->ExceptionAddress,
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(char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
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}
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else
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{
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/* FIXME: dump context */
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}
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status = send_debug_event( rec, TRUE, context );
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if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
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return STATUS_SUCCESS;
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if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
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return STATUS_SUCCESS;
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if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
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return status;
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}
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/* last chance exception */
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status = send_debug_event( rec, FALSE, context );
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if (status != DBG_CONTINUE)
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{
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if (rec->ExceptionFlags & EH_STACK_INVALID)
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ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
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else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
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ERR("Process attempted to continue execution after noncontinuable exception.\n");
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else
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ERR("Unhandled exception code %x flags %x addr %p\n",
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rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
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NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
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}
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* RtlCaptureContext (NTDLL.@)
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*/
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void WINAPI RtlCaptureContext( CONTEXT *context )
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{
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FIXME("not implemented\n");
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memset( context, 0, sizeof(*context) );
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}
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/***********************************************************************
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* set_cpu_context
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*
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* Set the new CPU context.
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*/
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void set_cpu_context( const CONTEXT *context )
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{
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FIXME("not implemented\n");
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}
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/***********************************************************************
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* copy_context
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*
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* Copy a register context according to the flags.
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*/
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void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
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{
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flags &= ~CONTEXT_SPARC; /* get rid of CPU id */
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if (flags & CONTEXT_CONTROL)
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{
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to->psr = from->psr;
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to->pc = from->pc;
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to->npc = from->npc;
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to->y = from->y;
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to->wim = from->wim;
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to->tbr = from->tbr;
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}
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if (flags & CONTEXT_INTEGER)
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{
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to->g0 = from->g0;
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to->g1 = from->g1;
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to->g2 = from->g2;
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to->g3 = from->g3;
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to->g4 = from->g4;
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to->g5 = from->g5;
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to->g6 = from->g6;
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to->g7 = from->g7;
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to->o0 = from->o0;
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to->o1 = from->o1;
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to->o2 = from->o2;
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to->o3 = from->o3;
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to->o4 = from->o4;
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to->o5 = from->o5;
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to->o6 = from->o6;
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to->o7 = from->o7;
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to->l0 = from->l0;
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to->l1 = from->l1;
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to->l2 = from->l2;
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to->l3 = from->l3;
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to->l4 = from->l4;
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to->l5 = from->l5;
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to->l6 = from->l6;
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to->l7 = from->l7;
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to->i0 = from->i0;
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to->i1 = from->i1;
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to->i2 = from->i2;
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to->i3 = from->i3;
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to->i4 = from->i4;
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to->i5 = from->i5;
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to->i6 = from->i6;
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to->i7 = from->i7;
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}
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if (flags & CONTEXT_FLOATING_POINT)
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{
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/* FIXME */
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}
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}
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/***********************************************************************
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* context_to_server
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*
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* Convert a register context to the server format.
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*/
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NTSTATUS context_to_server( context_t *to, const CONTEXT *from )
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{
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DWORD flags = from->ContextFlags & ~CONTEXT_SPARC; /* get rid of CPU id */
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memset( to, 0, sizeof(*to) );
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to->cpu = CPU_SPARC;
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if (flags & CONTEXT_CONTROL)
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{
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to->flags |= SERVER_CTX_CONTROL;
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to->ctl.sparc_regs.psr = from->psr;
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to->ctl.sparc_regs.pc = from->pc;
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to->ctl.sparc_regs.npc = from->npc;
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to->ctl.sparc_regs.y = from->y;
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to->ctl.sparc_regs.wim = from->wim;
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to->ctl.sparc_regs.tbr = from->tbr;
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}
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if (flags & CONTEXT_INTEGER)
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{
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to->flags |= SERVER_CTX_INTEGER;
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to->integer.sparc_regs.g[0] = from->g0;
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to->integer.sparc_regs.g[1] = from->g1;
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to->integer.sparc_regs.g[2] = from->g2;
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to->integer.sparc_regs.g[3] = from->g3;
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to->integer.sparc_regs.g[4] = from->g4;
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to->integer.sparc_regs.g[5] = from->g5;
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to->integer.sparc_regs.g[6] = from->g6;
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to->integer.sparc_regs.g[7] = from->g7;
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to->integer.sparc_regs.o[0] = from->o0;
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to->integer.sparc_regs.o[1] = from->o1;
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to->integer.sparc_regs.o[2] = from->o2;
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to->integer.sparc_regs.o[3] = from->o3;
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to->integer.sparc_regs.o[4] = from->o4;
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to->integer.sparc_regs.o[5] = from->o5;
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to->integer.sparc_regs.o[6] = from->o6;
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to->integer.sparc_regs.o[7] = from->o7;
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to->integer.sparc_regs.l[0] = from->l0;
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to->integer.sparc_regs.l[1] = from->l1;
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to->integer.sparc_regs.l[2] = from->l2;
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to->integer.sparc_regs.l[3] = from->l3;
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to->integer.sparc_regs.l[4] = from->l4;
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to->integer.sparc_regs.l[5] = from->l5;
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to->integer.sparc_regs.l[6] = from->l6;
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to->integer.sparc_regs.l[7] = from->l7;
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to->integer.sparc_regs.i[0] = from->i0;
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to->integer.sparc_regs.i[1] = from->i1;
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to->integer.sparc_regs.i[2] = from->i2;
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to->integer.sparc_regs.i[3] = from->i3;
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to->integer.sparc_regs.i[4] = from->i4;
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to->integer.sparc_regs.i[5] = from->i5;
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to->integer.sparc_regs.i[6] = from->i6;
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to->integer.sparc_regs.i[7] = from->i7;
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}
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if (flags & CONTEXT_FLOATING_POINT)
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{
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/* FIXME */
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}
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* context_from_server
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*
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* Convert a register context from the server format.
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*/
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NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
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{
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if (from->cpu != CPU_SPARC) return STATUS_INVALID_PARAMETER;
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to->ContextFlags = CONTEXT_SPARC;
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if (from->flags & SERVER_CTX_CONTROL)
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{
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to->ContextFlags |= CONTEXT_CONTROL;
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to->psr = from->ctl.sparc_regs.psr;
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to->pc = from->ctl.sparc_regs.pc;
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to->npc = from->ctl.sparc_regs.npc;
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to->y = from->ctl.sparc_regs.y;
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to->wim = from->ctl.sparc_regs.wim;
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to->tbr = from->ctl.sparc_regs.tbr;
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}
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if (from->flags & SERVER_CTX_INTEGER)
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{
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to->ContextFlags |= CONTEXT_INTEGER;
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to->g0 = from->integer.sparc_regs.g[0];
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to->g1 = from->integer.sparc_regs.g[1];
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to->g2 = from->integer.sparc_regs.g[2];
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to->g3 = from->integer.sparc_regs.g[3];
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to->g4 = from->integer.sparc_regs.g[4];
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to->g5 = from->integer.sparc_regs.g[5];
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to->g6 = from->integer.sparc_regs.g[6];
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to->g7 = from->integer.sparc_regs.g[7];
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to->o0 = from->integer.sparc_regs.o[0];
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to->o1 = from->integer.sparc_regs.o[1];
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to->o2 = from->integer.sparc_regs.o[2];
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to->o3 = from->integer.sparc_regs.o[3];
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to->o4 = from->integer.sparc_regs.o[4];
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to->o5 = from->integer.sparc_regs.o[5];
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to->o6 = from->integer.sparc_regs.o[6];
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to->o7 = from->integer.sparc_regs.o[7];
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to->l0 = from->integer.sparc_regs.l[0];
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to->l1 = from->integer.sparc_regs.l[1];
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to->l2 = from->integer.sparc_regs.l[2];
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to->l3 = from->integer.sparc_regs.l[3];
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to->l4 = from->integer.sparc_regs.l[4];
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to->l5 = from->integer.sparc_regs.l[5];
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to->l6 = from->integer.sparc_regs.l[6];
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to->l7 = from->integer.sparc_regs.l[7];
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to->i0 = from->integer.sparc_regs.i[0];
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to->i1 = from->integer.sparc_regs.i[1];
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to->i2 = from->integer.sparc_regs.i[2];
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to->i3 = from->integer.sparc_regs.i[3];
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to->i4 = from->integer.sparc_regs.i[4];
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to->i5 = from->integer.sparc_regs.i[5];
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to->i6 = from->integer.sparc_regs.i[6];
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to->i7 = from->integer.sparc_regs.i[7];
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}
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if (from->flags & SERVER_CTX_FLOATING_POINT)
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{
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/* FIXME */
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}
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return STATUS_SUCCESS;
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}
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|
|
|
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/**********************************************************************
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|
* segv_handler
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*
|
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* Handler for SIGSEGV.
|
|
*/
|
|
static void segv_handler( int signal, siginfo_t *info, void *ucontext )
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|
{
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EXCEPTION_RECORD rec;
|
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CONTEXT context;
|
|
NTSTATUS status;
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|
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rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
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|
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/* we want the page-fault case to be fast */
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|
if ( info->si_code == SEGV_ACCERR )
|
|
if (!(rec.ExceptionCode = virtual_handle_fault( info->si_addr, 0 ))) return;
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 2;
|
|
rec.ExceptionInformation[0] = 0; /* FIXME: read/write access ? */
|
|
rec.ExceptionInformation[1] = (ULONG_PTR)info->si_addr;
|
|
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* bus_handler
|
|
*
|
|
* Handler for SIGBUS.
|
|
*/
|
|
static void bus_handler( int signal, siginfo_t *info, void *ucontext )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
|
|
if ( info->si_code == BUS_ADRALN )
|
|
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
|
|
else
|
|
rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
|
|
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* ill_handler
|
|
*
|
|
* Handler for SIGILL.
|
|
*/
|
|
static void ill_handler( int signal, siginfo_t *info, void *ucontext )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
switch ( info->si_code )
|
|
{
|
|
default:
|
|
case ILL_ILLOPC:
|
|
case ILL_ILLOPN:
|
|
case ILL_ILLADR:
|
|
case ILL_ILLTRP:
|
|
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
|
break;
|
|
|
|
case ILL_PRVOPC:
|
|
case ILL_PRVREG:
|
|
rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
|
|
break;
|
|
|
|
case ILL_BADSTK:
|
|
rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
|
|
break;
|
|
}
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* trap_handler
|
|
*
|
|
* Handler for SIGTRAP.
|
|
*/
|
|
static void trap_handler( int signal, siginfo_t *info, void *ucontext )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
switch ( info->si_code )
|
|
{
|
|
case TRAP_TRACE:
|
|
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
|
|
break;
|
|
case TRAP_BRKPT:
|
|
default:
|
|
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
|
|
break;
|
|
}
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* fpe_handler
|
|
*
|
|
* Handler for SIGFPE.
|
|
*/
|
|
static void fpe_handler( int signal, siginfo_t *info, void *ucontext )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
switch ( info->si_code )
|
|
{
|
|
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;
|
|
}
|
|
|
|
save_context( &context, ucontext );
|
|
save_fpu( &context, ucontext );
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
restore_fpu( &context, ucontext );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* int_handler
|
|
*
|
|
* Handler for SIGINT.
|
|
*/
|
|
static void int_handler( int signal, siginfo_t *info, void *ucontext )
|
|
{
|
|
if (!dispatch_signal(SIGINT))
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionCode = CONTROL_C_EXIT;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
}
|
|
|
|
/**********************************************************************
|
|
* abrt_handler
|
|
*
|
|
* Handler for SIGABRT.
|
|
*/
|
|
static void abrt_handler( int signal, struct siginfo *info, void *ucontext )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
save_context( &context, ucontext );
|
|
rec.ExceptionCode = EXCEPTION_WINE_ASSERTION;
|
|
rec.ExceptionFlags = EH_NONCONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.pc;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* quit_handler
|
|
*
|
|
* Handler for SIGQUIT.
|
|
*/
|
|
static void quit_handler( int signal, struct siginfo *info, void *ucontext )
|
|
{
|
|
abort_thread(0);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* usr1_handler
|
|
*
|
|
* Handler for SIGUSR1, used to signal a thread that it got suspended.
|
|
*/
|
|
static void usr1_handler( int signal, struct siginfo *info, void *ucontext )
|
|
{
|
|
CONTEXT context;
|
|
|
|
save_context( &context, ucontext );
|
|
wait_suspend( &context );
|
|
restore_context( &context, ucontext );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* __wine_set_signal_handler (NTDLL.@)
|
|
*/
|
|
int CDECL __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;
|
|
handlers[sig] = wsh;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* signal_alloc_thread
|
|
*/
|
|
NTSTATUS signal_alloc_thread( TEB **teb )
|
|
{
|
|
static size_t sigstack_zero_bits;
|
|
SIZE_T size;
|
|
NTSTATUS status;
|
|
|
|
if (!sigstack_zero_bits)
|
|
{
|
|
size_t min_size = getpagesize(); /* this is just for the TEB, we don't use a signal stack yet */
|
|
/* find the first power of two not smaller than min_size */
|
|
while ((1u << sigstack_zero_bits) < min_size) sigstack_zero_bits++;
|
|
assert( sizeof(TEB) <= min_size );
|
|
}
|
|
|
|
size = 1 << sigstack_zero_bits;
|
|
*teb = NULL;
|
|
if (!(status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)teb, sigstack_zero_bits,
|
|
&size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
|
|
{
|
|
(*teb)->Tib.Self = &(*teb)->Tib;
|
|
(*teb)->Tib.ExceptionList = (void *)~0UL;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* signal_free_thread
|
|
*/
|
|
void signal_free_thread( TEB *teb )
|
|
{
|
|
SIZE_T size;
|
|
|
|
if (teb->DeallocationStack)
|
|
{
|
|
size = 0;
|
|
NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
|
|
}
|
|
size = 0;
|
|
NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* signal_init_thread
|
|
*/
|
|
void signal_init_thread( TEB *teb )
|
|
{
|
|
static int init_done;
|
|
|
|
if (!init_done)
|
|
{
|
|
pthread_key_create( &teb_key, NULL );
|
|
init_done = 1;
|
|
}
|
|
pthread_setspecific( teb_key, teb );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* signal_init_process
|
|
*/
|
|
void signal_init_process(void)
|
|
{
|
|
struct sigaction sig_act;
|
|
|
|
sig_act.sa_mask = server_block_set;
|
|
sig_act.sa_flags = SA_RESTART | SA_SIGINFO;
|
|
|
|
sig_act.sa_sigaction = int_handler;
|
|
if (sigaction( SIGINT, &sig_act, NULL ) == -1) goto error;
|
|
sig_act.sa_sigaction = fpe_handler;
|
|
if (sigaction( SIGFPE, &sig_act, NULL ) == -1) goto error;
|
|
sig_act.sa_sigaction = abrt_handler;
|
|
if (sigaction( SIGABRT, &sig_act, NULL ) == -1) goto error;
|
|
sig_act.sa_sigaction = quit_handler;
|
|
if (sigaction( SIGQUIT, &sig_act, NULL ) == -1) goto error;
|
|
sig_act.sa_sigaction = usr1_handler;
|
|
if (sigaction( SIGUSR1, &sig_act, NULL ) == -1) goto error;
|
|
|
|
sig_act.sa_sigaction = segv_handler;
|
|
if (sigaction( SIGSEGV, &sig_act, NULL ) == -1) goto error;
|
|
if (sigaction( SIGILL, &sig_act, NULL ) == -1) goto error;
|
|
#ifdef SIGBUS
|
|
if (sigaction( SIGBUS, &sig_act, NULL ) == -1) goto error;
|
|
#endif
|
|
|
|
#ifdef SIGTRAP
|
|
sig_act.sa_sigaction = trap_handler;
|
|
if (sigaction( SIGTRAP, &sig_act, NULL ) == -1) goto error;
|
|
#endif
|
|
|
|
/* 'ta 6' tells the kernel to synthesize any unaligned accesses this
|
|
process makes, instead of just signalling an error and terminating
|
|
the process. wine-devel did not reach a conclusion on whether
|
|
this is correct, because that is what x86 does, or it is harmful
|
|
because it could obscure problems in user code */
|
|
__asm__("ta 6"); /* 6 == ST_FIX_ALIGN defined in sys/trap.h */
|
|
return;
|
|
|
|
error:
|
|
perror("sigaction");
|
|
exit(1);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* __wine_enter_vm86
|
|
*/
|
|
void __wine_enter_vm86( CONTEXT *context )
|
|
{
|
|
MESSAGE("vm86 mode not supported on this platform\n");
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlUnwind (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
|
|
{
|
|
FIXME( "Not implemented on Sparc\n" );
|
|
}
|
|
|
|
/*******************************************************************
|
|
* NtRaiseException (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
|
|
{
|
|
NTSTATUS status = raise_exception( rec, context, first_chance );
|
|
if (status == STATUS_SUCCESS) NtSetContextThread( GetCurrentThread(), context );
|
|
return status;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlRaiseException (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
|
|
{
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
RtlCaptureContext( &context );
|
|
rec->ExceptionAddress = (void *)context.pc;
|
|
status = raise_exception( rec, &context, TRUE );
|
|
if (status) raise_status( status, rec );
|
|
}
|
|
|
|
/*************************************************************************
|
|
* RtlCaptureStackBackTrace (NTDLL.@)
|
|
*/
|
|
USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer, ULONG *hash )
|
|
{
|
|
FIXME( "(%d, %d, %p, %p) stub!\n", skip, count, buffer, hash );
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* call_thread_entry_point
|
|
*/
|
|
void call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg )
|
|
{
|
|
__TRY
|
|
{
|
|
exit_thread( entry( arg ));
|
|
}
|
|
__EXCEPT(unhandled_exception_filter)
|
|
{
|
|
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
|
|
}
|
|
__ENDTRY
|
|
abort(); /* should not be reached */
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlExitUserThread (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlExitUserThread( ULONG status )
|
|
{
|
|
exit_thread( status );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* abort_thread
|
|
*/
|
|
void abort_thread( int status )
|
|
{
|
|
terminate_thread( status );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DbgBreakPoint (NTDLL.@)
|
|
*/
|
|
void WINAPI DbgBreakPoint(void)
|
|
{
|
|
kill(getpid(), SIGTRAP);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DbgUserBreakPoint (NTDLL.@)
|
|
*/
|
|
void WINAPI DbgUserBreakPoint(void)
|
|
{
|
|
kill(getpid(), SIGTRAP);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* NtCurrentTeb (NTDLL.@)
|
|
*/
|
|
TEB * WINAPI NtCurrentTeb(void)
|
|
{
|
|
return pthread_getspecific( teb_key );
|
|
}
|
|
|
|
#endif /* __sparc__ */
|