1043 lines
32 KiB
C
1043 lines
32 KiB
C
/*
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* PowerPC signal handling routines
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*
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* Copyright 2002 Marcus Meissner, SuSE Linux AG
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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 __powerpc__
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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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#include <stdarg.h>
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#include <stdio.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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#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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#ifdef HAVE_SYS_VM86_H
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# include <sys/vm86.h>
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#endif
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#ifdef HAVE_SYS_SIGNAL_H
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# include <sys/signal.h>
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#endif
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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 "wine/library.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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/***********************************************************************
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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 ucontext SIGCONTEXT;
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# define HANDLER_DEF(name) void name( int __signal, struct siginfo *__siginfo, SIGCONTEXT *__context )
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# define HANDLER_CONTEXT (__context)
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/* All Registers access - only for local access */
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# define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name)
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/* Gpr Registers access */
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# define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context)
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# define IAR_sig(context) REG_sig(nip, context) /* Program counter */
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# define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */
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# define CTR_sig(context) REG_sig(ctr, context) /* Count register */
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# define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */
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# define LR_sig(context) REG_sig(link, context) /* Link register */
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# define CR_sig(context) REG_sig(ccr, context) /* Condition register */
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/* Float Registers access */
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# define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num])
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# define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4)))
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/* Exception Registers access */
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# define DAR_sig(context) REG_sig(dar, context)
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# define DSISR_sig(context) REG_sig(dsisr, context)
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# define TRAP_sig(context) REG_sig(trap, context)
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#endif /* linux */
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#ifdef __APPLE__
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# include <sys/ucontext.h>
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# include <sys/types.h>
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typedef siginfo_t siginfo;
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typedef struct ucontext SIGCONTEXT;
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# define HANDLER_DEF(name) void name( int __signal, siginfo *__siginfo, SIGCONTEXT *__context )
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# define HANDLER_CONTEXT (__context)
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/* All Registers access - only for local access */
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# define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name)
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# define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name)
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# define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name)
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# define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name)
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/* Gpr Registers access */
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# define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
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# define IAR_sig(context) REG_sig(srr0, context) /* Program counter */
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# define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */
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# define CTR_sig(context) REG_sig(ctr, context)
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# define XER_sig(context) REG_sig(xer, context) /* Link register */
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# define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */
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# define CR_sig(context) REG_sig(cr, context) /* Condition register */
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/* Float Registers access */
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# define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context)
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# define FPSCR_sig(context) FLOATREG_sig(fpscr, context)
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/* Exception Registers access */
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# define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */
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# define DSISR_sig(context) EXCEPREG_sig(dsisr, context)
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# define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
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/* Signal defs : Those are undefined on darwin
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SIGBUS
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#undef BUS_ADRERR
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#undef BUS_OBJERR
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SIGILL
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#undef ILL_ILLOPN
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#undef ILL_ILLTRP
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#undef ILL_ILLADR
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#undef ILL_COPROC
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#undef ILL_PRVREG
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#undef ILL_BADSTK
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SIGTRAP
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#undef TRAP_BRKPT
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#undef TRAP_TRACE
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SIGFPE
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*/
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#endif /* __APPLE__ */
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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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* save_context
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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 save_context( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#define C(x) context->Gpr##x = GPR_sig(x,sigcontext)
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/* Save Gpr registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
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C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
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C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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C(31);
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#undef C
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context->Iar = IAR_sig(sigcontext); /* Program Counter */
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context->Msr = MSR_sig(sigcontext); /* Machine State Register (Supervisor) */
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context->Ctr = CTR_sig(sigcontext);
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context->Xer = XER_sig(sigcontext);
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context->Lr = LR_sig(sigcontext);
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context->Cr = CR_sig(sigcontext);
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/* Saving Exception regs */
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context->Dar = DAR_sig(sigcontext);
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context->Dsisr = DSISR_sig(sigcontext);
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context->Trap = TRAP_sig(sigcontext);
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}
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/***********************************************************************
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* restore_context
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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 restore_context( const CONTEXT *context, SIGCONTEXT *sigcontext )
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{
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#define C(x) GPR_sig(x,sigcontext) = context->Gpr##x
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
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C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
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C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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C(31);
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#undef C
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IAR_sig(sigcontext) = context->Iar; /* Program Counter */
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MSR_sig(sigcontext) = context->Msr; /* Machine State Register (Supervisor) */
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CTR_sig(sigcontext) = context->Ctr;
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XER_sig(sigcontext) = context->Xer;
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LR_sig(sigcontext) = context->Lr;
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CR_sig(sigcontext) = context->Cr;
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/* Setting Exception regs */
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DAR_sig(sigcontext) = context->Dar;
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DSISR_sig(sigcontext) = context->Dsisr;
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TRAP_sig(sigcontext) = context->Trap;
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}
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/***********************************************************************
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* save_fpu
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*
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* Set the FPU context from a sigcontext.
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*/
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static inline void save_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#define C(x) context->Fpr##x = FLOAT_sig(x,sigcontext)
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
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C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
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C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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C(31);
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#undef C
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context->Fpscr = FPSCR_sig(sigcontext);
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}
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/***********************************************************************
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* restore_fpu
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*
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* Restore the FPU context to a sigcontext.
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*/
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static inline void restore_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
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{
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#define C(x) FLOAT_sig(x,sigcontext) = context->Fpr##x
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
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C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
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C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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C(31);
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#undef C
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FPSCR_sig(sigcontext) = context->Fpscr;
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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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if (flags & CONTEXT_CONTROL)
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{
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to->Msr = from->Msr;
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to->Ctr = from->Ctr;
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to->Iar = from->Iar;
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to->Lr = from->Lr;
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to->Dar = from->Dar;
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to->Dsisr = from->Dsisr;
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to->Trap = from->Trap;
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}
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if (flags & CONTEXT_INTEGER)
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{
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to->Gpr0 = from->Gpr0;
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to->Gpr1 = from->Gpr1;
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to->Gpr2 = from->Gpr2;
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to->Gpr3 = from->Gpr3;
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to->Gpr4 = from->Gpr4;
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to->Gpr5 = from->Gpr5;
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to->Gpr6 = from->Gpr6;
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to->Gpr7 = from->Gpr7;
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to->Gpr8 = from->Gpr8;
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to->Gpr9 = from->Gpr9;
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to->Gpr10 = from->Gpr10;
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to->Gpr11 = from->Gpr11;
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to->Gpr12 = from->Gpr12;
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to->Gpr13 = from->Gpr13;
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to->Gpr14 = from->Gpr14;
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to->Gpr15 = from->Gpr15;
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to->Gpr16 = from->Gpr16;
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to->Gpr17 = from->Gpr17;
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to->Gpr18 = from->Gpr18;
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to->Gpr19 = from->Gpr19;
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to->Gpr20 = from->Gpr20;
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to->Gpr21 = from->Gpr21;
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to->Gpr22 = from->Gpr22;
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to->Gpr23 = from->Gpr23;
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to->Gpr24 = from->Gpr24;
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to->Gpr25 = from->Gpr25;
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to->Gpr26 = from->Gpr26;
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to->Gpr27 = from->Gpr27;
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to->Gpr28 = from->Gpr28;
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to->Gpr29 = from->Gpr29;
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to->Gpr30 = from->Gpr30;
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to->Gpr31 = from->Gpr31;
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to->Xer = from->Xer;
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to->Cr = from->Cr;
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}
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if (flags & CONTEXT_FLOATING_POINT)
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{
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to->Fpr0 = from->Fpr0;
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to->Fpr1 = from->Fpr1;
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to->Fpr2 = from->Fpr2;
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to->Fpr3 = from->Fpr3;
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to->Fpr4 = from->Fpr4;
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to->Fpr5 = from->Fpr5;
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to->Fpr6 = from->Fpr6;
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to->Fpr7 = from->Fpr7;
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to->Fpr8 = from->Fpr8;
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to->Fpr9 = from->Fpr9;
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to->Fpr10 = from->Fpr10;
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to->Fpr11 = from->Fpr11;
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to->Fpr12 = from->Fpr12;
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to->Fpr13 = from->Fpr13;
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to->Fpr14 = from->Fpr14;
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to->Fpr15 = from->Fpr15;
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to->Fpr16 = from->Fpr16;
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to->Fpr17 = from->Fpr17;
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to->Fpr18 = from->Fpr18;
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to->Fpr19 = from->Fpr19;
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to->Fpr20 = from->Fpr20;
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to->Fpr21 = from->Fpr21;
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to->Fpr22 = from->Fpr22;
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to->Fpr23 = from->Fpr23;
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to->Fpr24 = from->Fpr24;
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to->Fpr25 = from->Fpr25;
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to->Fpr26 = from->Fpr26;
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to->Fpr27 = from->Fpr27;
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to->Fpr28 = from->Fpr28;
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to->Fpr29 = from->Fpr29;
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to->Fpr30 = from->Fpr30;
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to->Fpr31 = from->Fpr31;
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to->Fpscr = from->Fpscr;
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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; /* no CPU id? */
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memset( to, 0, sizeof(*to) );
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to->cpu = CPU_POWERPC;
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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.powerpc_regs.iar = from->Iar;
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to->ctl.powerpc_regs.msr = from->Msr;
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to->ctl.powerpc_regs.ctr = from->Ctr;
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to->ctl.powerpc_regs.lr = from->Lr;
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to->ctl.powerpc_regs.dar = from->Dar;
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to->ctl.powerpc_regs.dsisr = from->Dsisr;
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to->ctl.powerpc_regs.trap = from->Trap;
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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.powerpc_regs.gpr[0] = from->Gpr0;
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to->integer.powerpc_regs.gpr[1] = from->Gpr1;
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to->integer.powerpc_regs.gpr[2] = from->Gpr2;
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to->integer.powerpc_regs.gpr[3] = from->Gpr3;
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to->integer.powerpc_regs.gpr[4] = from->Gpr4;
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to->integer.powerpc_regs.gpr[5] = from->Gpr5;
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to->integer.powerpc_regs.gpr[6] = from->Gpr6;
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to->integer.powerpc_regs.gpr[7] = from->Gpr7;
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to->integer.powerpc_regs.gpr[8] = from->Gpr8;
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to->integer.powerpc_regs.gpr[9] = from->Gpr9;
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to->integer.powerpc_regs.gpr[10] = from->Gpr10;
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to->integer.powerpc_regs.gpr[11] = from->Gpr11;
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to->integer.powerpc_regs.gpr[12] = from->Gpr12;
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to->integer.powerpc_regs.gpr[13] = from->Gpr13;
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to->integer.powerpc_regs.gpr[14] = from->Gpr14;
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to->integer.powerpc_regs.gpr[15] = from->Gpr15;
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to->integer.powerpc_regs.gpr[16] = from->Gpr16;
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to->integer.powerpc_regs.gpr[17] = from->Gpr17;
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to->integer.powerpc_regs.gpr[18] = from->Gpr18;
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to->integer.powerpc_regs.gpr[19] = from->Gpr19;
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to->integer.powerpc_regs.gpr[20] = from->Gpr20;
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to->integer.powerpc_regs.gpr[21] = from->Gpr21;
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to->integer.powerpc_regs.gpr[22] = from->Gpr22;
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to->integer.powerpc_regs.gpr[23] = from->Gpr23;
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to->integer.powerpc_regs.gpr[24] = from->Gpr24;
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to->integer.powerpc_regs.gpr[25] = from->Gpr25;
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to->integer.powerpc_regs.gpr[26] = from->Gpr26;
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to->integer.powerpc_regs.gpr[27] = from->Gpr27;
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to->integer.powerpc_regs.gpr[28] = from->Gpr28;
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to->integer.powerpc_regs.gpr[29] = from->Gpr29;
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to->integer.powerpc_regs.gpr[30] = from->Gpr30;
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to->integer.powerpc_regs.gpr[31] = from->Gpr31;
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to->integer.powerpc_regs.xer = from->Xer;
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to->integer.powerpc_regs.cr = from->Cr;
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}
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if (flags & CONTEXT_FLOATING_POINT)
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{
|
|
to->flags |= SERVER_CTX_FLOATING_POINT;
|
|
to->fp.powerpc_regs.fpr[0] = from->Fpr0;
|
|
to->fp.powerpc_regs.fpr[1] = from->Fpr1;
|
|
to->fp.powerpc_regs.fpr[2] = from->Fpr2;
|
|
to->fp.powerpc_regs.fpr[3] = from->Fpr3;
|
|
to->fp.powerpc_regs.fpr[4] = from->Fpr4;
|
|
to->fp.powerpc_regs.fpr[5] = from->Fpr5;
|
|
to->fp.powerpc_regs.fpr[6] = from->Fpr6;
|
|
to->fp.powerpc_regs.fpr[7] = from->Fpr7;
|
|
to->fp.powerpc_regs.fpr[8] = from->Fpr8;
|
|
to->fp.powerpc_regs.fpr[9] = from->Fpr9;
|
|
to->fp.powerpc_regs.fpr[10] = from->Fpr10;
|
|
to->fp.powerpc_regs.fpr[11] = from->Fpr11;
|
|
to->fp.powerpc_regs.fpr[12] = from->Fpr12;
|
|
to->fp.powerpc_regs.fpr[13] = from->Fpr13;
|
|
to->fp.powerpc_regs.fpr[14] = from->Fpr14;
|
|
to->fp.powerpc_regs.fpr[15] = from->Fpr15;
|
|
to->fp.powerpc_regs.fpr[16] = from->Fpr16;
|
|
to->fp.powerpc_regs.fpr[17] = from->Fpr17;
|
|
to->fp.powerpc_regs.fpr[18] = from->Fpr18;
|
|
to->fp.powerpc_regs.fpr[19] = from->Fpr19;
|
|
to->fp.powerpc_regs.fpr[20] = from->Fpr20;
|
|
to->fp.powerpc_regs.fpr[21] = from->Fpr21;
|
|
to->fp.powerpc_regs.fpr[22] = from->Fpr22;
|
|
to->fp.powerpc_regs.fpr[23] = from->Fpr23;
|
|
to->fp.powerpc_regs.fpr[24] = from->Fpr24;
|
|
to->fp.powerpc_regs.fpr[25] = from->Fpr25;
|
|
to->fp.powerpc_regs.fpr[26] = from->Fpr26;
|
|
to->fp.powerpc_regs.fpr[27] = from->Fpr27;
|
|
to->fp.powerpc_regs.fpr[28] = from->Fpr28;
|
|
to->fp.powerpc_regs.fpr[29] = from->Fpr29;
|
|
to->fp.powerpc_regs.fpr[30] = from->Fpr30;
|
|
to->fp.powerpc_regs.fpr[31] = from->Fpr31;
|
|
to->fp.powerpc_regs.fpscr = from->Fpscr;
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* context_from_server
|
|
*
|
|
* Convert a register context from the server format.
|
|
*/
|
|
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
|
|
{
|
|
if (from->cpu != CPU_POWERPC) return STATUS_INVALID_PARAMETER;
|
|
|
|
to->ContextFlags = 0; /* no CPU id? */
|
|
if (from->flags & SERVER_CTX_CONTROL)
|
|
{
|
|
to->ContextFlags |= CONTEXT_CONTROL;
|
|
to->Msr = from->ctl.powerpc_regs.msr;
|
|
to->Ctr = from->ctl.powerpc_regs.ctr;
|
|
to->Iar = from->ctl.powerpc_regs.iar;
|
|
to->Lr = from->ctl.powerpc_regs.lr;
|
|
to->Dar = from->ctl.powerpc_regs.dar;
|
|
to->Dsisr = from->ctl.powerpc_regs.dsisr;
|
|
to->Trap = from->ctl.powerpc_regs.trap;
|
|
}
|
|
if (from->flags & SERVER_CTX_INTEGER)
|
|
{
|
|
to->ContextFlags |= CONTEXT_INTEGER;
|
|
to->Gpr0 = from->integer.powerpc_regs.gpr[0];
|
|
to->Gpr1 = from->integer.powerpc_regs.gpr[1];
|
|
to->Gpr2 = from->integer.powerpc_regs.gpr[2];
|
|
to->Gpr3 = from->integer.powerpc_regs.gpr[3];
|
|
to->Gpr4 = from->integer.powerpc_regs.gpr[4];
|
|
to->Gpr5 = from->integer.powerpc_regs.gpr[5];
|
|
to->Gpr6 = from->integer.powerpc_regs.gpr[6];
|
|
to->Gpr7 = from->integer.powerpc_regs.gpr[7];
|
|
to->Gpr8 = from->integer.powerpc_regs.gpr[8];
|
|
to->Gpr9 = from->integer.powerpc_regs.gpr[9];
|
|
to->Gpr10 = from->integer.powerpc_regs.gpr[10];
|
|
to->Gpr11 = from->integer.powerpc_regs.gpr[11];
|
|
to->Gpr12 = from->integer.powerpc_regs.gpr[12];
|
|
to->Gpr13 = from->integer.powerpc_regs.gpr[13];
|
|
to->Gpr14 = from->integer.powerpc_regs.gpr[14];
|
|
to->Gpr15 = from->integer.powerpc_regs.gpr[15];
|
|
to->Gpr16 = from->integer.powerpc_regs.gpr[16];
|
|
to->Gpr17 = from->integer.powerpc_regs.gpr[17];
|
|
to->Gpr18 = from->integer.powerpc_regs.gpr[18];
|
|
to->Gpr19 = from->integer.powerpc_regs.gpr[19];
|
|
to->Gpr20 = from->integer.powerpc_regs.gpr[20];
|
|
to->Gpr21 = from->integer.powerpc_regs.gpr[21];
|
|
to->Gpr22 = from->integer.powerpc_regs.gpr[22];
|
|
to->Gpr23 = from->integer.powerpc_regs.gpr[23];
|
|
to->Gpr24 = from->integer.powerpc_regs.gpr[24];
|
|
to->Gpr25 = from->integer.powerpc_regs.gpr[25];
|
|
to->Gpr26 = from->integer.powerpc_regs.gpr[26];
|
|
to->Gpr27 = from->integer.powerpc_regs.gpr[27];
|
|
to->Gpr28 = from->integer.powerpc_regs.gpr[28];
|
|
to->Gpr29 = from->integer.powerpc_regs.gpr[29];
|
|
to->Gpr30 = from->integer.powerpc_regs.gpr[30];
|
|
to->Gpr31 = from->integer.powerpc_regs.gpr[31];
|
|
to->Xer = from->integer.powerpc_regs.xer;
|
|
to->Cr = from->integer.powerpc_regs.cr;
|
|
}
|
|
if (from->flags & SERVER_CTX_FLOATING_POINT)
|
|
{
|
|
to->ContextFlags |= CONTEXT_FLOATING_POINT;
|
|
to->Fpr0 = from->fp.powerpc_regs.fpr[0];
|
|
to->Fpr1 = from->fp.powerpc_regs.fpr[1];
|
|
to->Fpr2 = from->fp.powerpc_regs.fpr[2];
|
|
to->Fpr3 = from->fp.powerpc_regs.fpr[3];
|
|
to->Fpr4 = from->fp.powerpc_regs.fpr[4];
|
|
to->Fpr5 = from->fp.powerpc_regs.fpr[5];
|
|
to->Fpr6 = from->fp.powerpc_regs.fpr[6];
|
|
to->Fpr7 = from->fp.powerpc_regs.fpr[7];
|
|
to->Fpr8 = from->fp.powerpc_regs.fpr[8];
|
|
to->Fpr9 = from->fp.powerpc_regs.fpr[9];
|
|
to->Fpr10 = from->fp.powerpc_regs.fpr[10];
|
|
to->Fpr11 = from->fp.powerpc_regs.fpr[11];
|
|
to->Fpr12 = from->fp.powerpc_regs.fpr[12];
|
|
to->Fpr13 = from->fp.powerpc_regs.fpr[13];
|
|
to->Fpr14 = from->fp.powerpc_regs.fpr[14];
|
|
to->Fpr15 = from->fp.powerpc_regs.fpr[15];
|
|
to->Fpr16 = from->fp.powerpc_regs.fpr[16];
|
|
to->Fpr17 = from->fp.powerpc_regs.fpr[17];
|
|
to->Fpr18 = from->fp.powerpc_regs.fpr[18];
|
|
to->Fpr19 = from->fp.powerpc_regs.fpr[19];
|
|
to->Fpr20 = from->fp.powerpc_regs.fpr[20];
|
|
to->Fpr21 = from->fp.powerpc_regs.fpr[21];
|
|
to->Fpr22 = from->fp.powerpc_regs.fpr[22];
|
|
to->Fpr23 = from->fp.powerpc_regs.fpr[23];
|
|
to->Fpr24 = from->fp.powerpc_regs.fpr[24];
|
|
to->Fpr25 = from->fp.powerpc_regs.fpr[25];
|
|
to->Fpr26 = from->fp.powerpc_regs.fpr[26];
|
|
to->Fpr27 = from->fp.powerpc_regs.fpr[27];
|
|
to->Fpr28 = from->fp.powerpc_regs.fpr[28];
|
|
to->Fpr29 = from->fp.powerpc_regs.fpr[29];
|
|
to->Fpr30 = from->fp.powerpc_regs.fpr[30];
|
|
to->Fpr31 = from->fp.powerpc_regs.fpr[31];
|
|
to->Fpscr = from->fp.powerpc_regs.fpscr;
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* get_fpu_code
|
|
*
|
|
* Get the FPU exception code from the FPU status.
|
|
*/
|
|
static inline DWORD get_fpu_code( const CONTEXT *context )
|
|
{
|
|
DWORD status = context->Fpscr;
|
|
|
|
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 */
|
|
}
|
|
|
|
/**********************************************************************
|
|
* do_segv
|
|
*
|
|
* Implementation of SIGSEGV handler.
|
|
*/
|
|
static void do_segv( CONTEXT *context, int trap, int err, int code, void * addr )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
NTSTATUS status;
|
|
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionAddress = addr;
|
|
rec.NumberParameters = 0;
|
|
|
|
switch (trap) {
|
|
case SIGSEGV:
|
|
switch ( code & 0xffff ) {
|
|
case SEGV_MAPERR:
|
|
case SEGV_ACCERR:
|
|
rec.NumberParameters = 2;
|
|
rec.ExceptionInformation[0] = 0; /* FIXME ? */
|
|
rec.ExceptionInformation[1] = (ULONG_PTR)addr;
|
|
if (!(rec.ExceptionCode = virtual_handle_fault(addr, rec.ExceptionInformation[0])))
|
|
return;
|
|
break;
|
|
default:FIXME("Unhandled SIGSEGV/%x\n",code);
|
|
break;
|
|
}
|
|
break;
|
|
case SIGBUS:
|
|
switch ( code & 0xffff ) {
|
|
case BUS_ADRALN:
|
|
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
|
|
break;
|
|
#ifdef BUS_ADRERR
|
|
case BUS_ADRERR:
|
|
#endif
|
|
#ifdef BUS_OBJERR
|
|
case BUS_OBJERR:
|
|
/* FIXME: correct for all cases ? */
|
|
rec.NumberParameters = 2;
|
|
rec.ExceptionInformation[0] = 0; /* FIXME ? */
|
|
rec.ExceptionInformation[1] = (ULONG_PTR)addr;
|
|
if (!(rec.ExceptionCode = virtual_handle_fault(addr, rec.ExceptionInformation[0])))
|
|
return;
|
|
break;
|
|
#endif
|
|
default:FIXME("Unhandled SIGBUS/%x\n",code);
|
|
break;
|
|
}
|
|
break;
|
|
case SIGILL:
|
|
switch ( code & 0xffff ) {
|
|
case ILL_ILLOPC: /* illegal opcode */
|
|
#ifdef ILL_ILLOPN
|
|
case ILL_ILLOPN: /* illegal operand */
|
|
#endif
|
|
#ifdef ILL_ILLADR
|
|
case ILL_ILLADR: /* illegal addressing mode */
|
|
#endif
|
|
#ifdef ILL_ILLTRP
|
|
case ILL_ILLTRP: /* illegal trap */
|
|
#endif
|
|
#ifdef ILL_COPROC
|
|
case ILL_COPROC: /* coprocessor error */
|
|
#endif
|
|
rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
|
break;
|
|
case ILL_PRVOPC: /* privileged opcode */
|
|
#ifdef ILL_PRVREG
|
|
case ILL_PRVREG: /* privileged register */
|
|
#endif
|
|
rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
|
|
break;
|
|
#ifdef ILL_BADSTK
|
|
case ILL_BADSTK: /* internal stack error */
|
|
rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
|
|
break;
|
|
#endif
|
|
default:FIXME("Unhandled SIGILL/%x\n", code);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
status = raise_exception( &rec, context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* do_trap
|
|
*
|
|
* Implementation of SIGTRAP handler.
|
|
*/
|
|
static void do_trap( CONTEXT *context, int code, void * addr )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
NTSTATUS status;
|
|
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = addr;
|
|
rec.NumberParameters = 0;
|
|
|
|
/* FIXME: check if we might need to modify PC */
|
|
switch (code & 0xffff) {
|
|
#ifdef TRAP_BRKPT
|
|
case TRAP_BRKPT:
|
|
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
|
|
break;
|
|
#endif
|
|
#ifdef TRAP_TRACE
|
|
case TRAP_TRACE:
|
|
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
|
|
break;
|
|
#endif
|
|
default:FIXME("Unhandled SIGTRAP/%x\n", code);
|
|
break;
|
|
}
|
|
status = raise_exception( &rec, context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* do_trap
|
|
*
|
|
* Implementation of SIGFPE handler.
|
|
*/
|
|
static void do_fpe( CONTEXT *context, int code, void * addr )
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
NTSTATUS status;
|
|
|
|
switch ( code & 0xffff ) {
|
|
#ifdef FPE_FLTSUB
|
|
case FPE_FLTSUB:
|
|
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_INTDIV
|
|
case FPE_INTDIV:
|
|
rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_INTOVF
|
|
case FPE_INTOVF:
|
|
rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_FLTDIV
|
|
case FPE_FLTDIV:
|
|
rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_FLTOVF
|
|
case FPE_FLTOVF:
|
|
rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_FLTUND
|
|
case FPE_FLTUND:
|
|
rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_FLTRES
|
|
case FPE_FLTRES:
|
|
rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
|
|
break;
|
|
#endif
|
|
#ifdef FPE_FLTINV
|
|
case FPE_FLTINV:
|
|
#endif
|
|
default:
|
|
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
|
|
break;
|
|
}
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = addr;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* segv_handler
|
|
*
|
|
* Handler for SIGSEGV and related errors.
|
|
*/
|
|
static HANDLER_DEF(segv_handler)
|
|
{
|
|
CONTEXT context;
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
do_segv( &context, __siginfo->si_signo, __siginfo->si_errno, __siginfo->si_code, __siginfo->si_addr );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* trap_handler
|
|
*
|
|
* Handler for SIGTRAP.
|
|
*/
|
|
static HANDLER_DEF(trap_handler)
|
|
{
|
|
CONTEXT context;
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
do_trap( &context, __siginfo->si_code, __siginfo->si_addr );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* fpe_handler
|
|
*
|
|
* Handler for SIGFPE.
|
|
*/
|
|
static HANDLER_DEF(fpe_handler)
|
|
{
|
|
CONTEXT context;
|
|
save_fpu( &context, HANDLER_CONTEXT );
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
do_fpe( &context, __siginfo->si_code, __siginfo->si_addr );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
restore_fpu( &context, HANDLER_CONTEXT );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* int_handler
|
|
*
|
|
* Handler for SIGINT.
|
|
*/
|
|
static HANDLER_DEF(int_handler)
|
|
{
|
|
if (!dispatch_signal(SIGINT))
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
rec.ExceptionCode = CONTROL_C_EXIT;
|
|
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.Iar;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
}
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* abrt_handler
|
|
*
|
|
* Handler for SIGABRT.
|
|
*/
|
|
static HANDLER_DEF(abrt_handler)
|
|
{
|
|
EXCEPTION_RECORD rec;
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
rec.ExceptionCode = EXCEPTION_WINE_ASSERTION;
|
|
rec.ExceptionFlags = EH_NONCONTINUABLE;
|
|
rec.ExceptionRecord = NULL;
|
|
rec.ExceptionAddress = (LPVOID)context.Iar;
|
|
rec.NumberParameters = 0;
|
|
status = raise_exception( &rec, &context, TRUE );
|
|
if (status) raise_status( status, &rec );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* quit_handler
|
|
*
|
|
* Handler for SIGQUIT.
|
|
*/
|
|
static HANDLER_DEF(quit_handler)
|
|
{
|
|
abort_thread(0);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* usr1_handler
|
|
*
|
|
* Handler for SIGUSR1, used to signal a thread that it got suspended.
|
|
*/
|
|
static HANDLER_DEF(usr1_handler)
|
|
{
|
|
CONTEXT context;
|
|
|
|
save_context( &context, HANDLER_CONTEXT );
|
|
wait_suspend( &context );
|
|
restore_context( &context, HANDLER_CONTEXT );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* get_signal_stack_total_size
|
|
*
|
|
* Retrieve the size to allocate for the signal stack, including the TEB at the bottom.
|
|
* Must be a power of two.
|
|
*/
|
|
size_t get_signal_stack_total_size(void)
|
|
{
|
|
assert( sizeof(TEB) <= getpagesize() );
|
|
return getpagesize(); /* this is just for the TEB, we don't need a signal stack */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* set_handler
|
|
*
|
|
* Set a signal handler
|
|
*/
|
|
static int set_handler( int sig, void (*func)() )
|
|
{
|
|
struct sigaction sig_act;
|
|
|
|
sig_act.sa_sigaction = func;
|
|
sig_act.sa_mask = server_block_set;
|
|
sig_act.sa_flags = SA_RESTART | SA_SIGINFO;
|
|
return sigaction( sig, &sig_act, NULL );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* __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_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)
|
|
{
|
|
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;
|
|
if (set_handler( SIGABRT, (void (*)())abrt_handler ) == -1) goto error;
|
|
if (set_handler( SIGQUIT, (void (*)())quit_handler ) == -1) goto error;
|
|
if (set_handler( SIGUSR1, (void (*)())usr1_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;
|
|
|
|
error:
|
|
perror("sigaction");
|
|
exit(1);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* __wine_enter_vm86 (NTDLL.@)
|
|
*/
|
|
void __wine_enter_vm86( CONTEXT *context )
|
|
{
|
|
MESSAGE("vm86 mode not supported on this platform\n");
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlRaiseException (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
|
|
{
|
|
CONTEXT context;
|
|
NTSTATUS status;
|
|
|
|
RtlCaptureContext( &context );
|
|
rec->ExceptionAddress = (void *)context.Iar;
|
|
status = raise_exception( rec, &context, TRUE );
|
|
if (status) raise_status( status, rec );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* 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 /* __powerpc__ */
|