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/*
* PowerPC signal handling routines
*
* Copyright 2002 Marcus Meissner, SuSE Linux AG
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifdef __powerpc__
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <signal.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYSCALL_H
# include <syscall.h>
#else
# ifdef HAVE_SYS_SYSCALL_H
# include <sys/syscall.h>
# endif
#endif
#ifdef HAVE_SYS_SIGNAL_H
# include <sys/signal.h>
#endif
#ifdef HAVE_SYS_UCONTEXT_H
# include <sys/ucontext.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winternl.h"
#include "wine/library.h"
#include "wine/exception.h"
#include "ntdll_misc.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(seh);
WINE_DECLARE_DEBUG_CHANNEL(relay);
static pthread_key_t teb_key;
/***********************************************************************
* signal context platform-specific definitions
*/
#ifdef linux
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name)
/* Gpr Registers access */
# define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context)
# define IAR_sig(context) REG_sig(nip, context) /* Program counter */
# define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */
# define CTR_sig(context) REG_sig(ctr, context) /* Count register */
# define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */
# define LR_sig(context) REG_sig(link, context) /* Link register */
# define CR_sig(context) REG_sig(ccr, context) /* Condition register */
/* Float Registers access */
# define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num])
# define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4)))
/* Exception Registers access */
# define DAR_sig(context) REG_sig(dar, context)
# define DSISR_sig(context) REG_sig(dsisr, context)
# define TRAP_sig(context) REG_sig(trap, context)
#endif /* linux */
#ifdef __APPLE__
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name)
# define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name)
# define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name)
# define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name)
/* Gpr Registers access */
# define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
# define IAR_sig(context) REG_sig(srr0, context) /* Program counter */
# define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */
# define CTR_sig(context) REG_sig(ctr, context)
# define XER_sig(context) REG_sig(xer, context) /* Link register */
# define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */
# define CR_sig(context) REG_sig(cr, context) /* Condition register */
/* Float Registers access */
# define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context)
# define FPSCR_sig(context) FLOATREG_sig(fpscr, context)
/* Exception Registers access */
# define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */
# define DSISR_sig(context) EXCEPREG_sig(dsisr, context)
# define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
/* Signal defs : Those are undefined on darwin
SIGBUS
#undef BUS_ADRERR
#undef BUS_OBJERR
SIGILL
#undef ILL_ILLOPN
#undef ILL_ILLTRP
#undef ILL_ILLADR
#undef ILL_COPROC
#undef ILL_PRVREG
#undef ILL_BADSTK
SIGTRAP
#undef TRAP_BRKPT
#undef TRAP_TRACE
SIGFPE
*/
#endif /* __APPLE__ */
typedef int (*wine_signal_handler)(unsigned int sig);
static wine_signal_handler handlers[256];
/***********************************************************************
* dispatch_signal
*/
static inline int dispatch_signal(unsigned int sig)
{
if (handlers[sig] == NULL) return 0;
return handlers[sig](sig);
}
/***********************************************************************
* save_context
*
* Set the register values from a sigcontext.
*/
static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
{
#define C(x) context->Gpr##x = GPR_sig(x,sigcontext)
/* Save Gpr registers */
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
context->Iar = IAR_sig(sigcontext); /* Program Counter */
context->Msr = MSR_sig(sigcontext); /* Machine State Register (Supervisor) */
context->Ctr = CTR_sig(sigcontext);
context->Xer = XER_sig(sigcontext);
context->Lr = LR_sig(sigcontext);
context->Cr = CR_sig(sigcontext);
/* Saving Exception regs */
context->Dar = DAR_sig(sigcontext);
context->Dsisr = DSISR_sig(sigcontext);
context->Trap = TRAP_sig(sigcontext);
}
/***********************************************************************
* restore_context
*
* Build a sigcontext from the register values.
*/
static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
{
#define C(x) GPR_sig(x,sigcontext) = context->Gpr##x
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
IAR_sig(sigcontext) = context->Iar; /* Program Counter */
MSR_sig(sigcontext) = context->Msr; /* Machine State Register (Supervisor) */
CTR_sig(sigcontext) = context->Ctr;
XER_sig(sigcontext) = context->Xer;
LR_sig(sigcontext) = context->Lr;
CR_sig(sigcontext) = context->Cr;
/* Setting Exception regs */
DAR_sig(sigcontext) = context->Dar;
DSISR_sig(sigcontext) = context->Dsisr;
TRAP_sig(sigcontext) = context->Trap;
}
/***********************************************************************
* save_fpu
*
* Set the FPU context from a sigcontext.
*/
static inline void save_fpu( CONTEXT *context, const ucontext_t *sigcontext )
{
#define C(x) context->Fpr##x = FLOAT_sig(x,sigcontext)
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
context->Fpscr = FPSCR_sig(sigcontext);
}
/***********************************************************************
* restore_fpu
*
* Restore the FPU context to a sigcontext.
*/
static inline void restore_fpu( CONTEXT *context, const ucontext_t *sigcontext )
{
#define C(x) FLOAT_sig(x,sigcontext) = context->Fpr##x
C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
C(31);
#undef C
FPSCR_sig(sigcontext) = context->Fpscr;
}
/***********************************************************************
* RtlCaptureContext (NTDLL.@)
*/
void WINAPI RtlCaptureContext( CONTEXT *context )
{
FIXME("not implemented\n");
memset( context, 0, sizeof(*context) );
}
/***********************************************************************
* set_cpu_context
*
* Set the new CPU context.
*/
static void set_cpu_context( const CONTEXT *context )
{
FIXME("not implemented\n");
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
if (flags & CONTEXT_CONTROL)
{
to->Msr = from->Msr;
to->Ctr = from->Ctr;
to->Iar = from->Iar;
to->Lr = from->Lr;
to->Dar = from->Dar;
to->Dsisr = from->Dsisr;
to->Trap = from->Trap;
}
if (flags & CONTEXT_INTEGER)
{
to->Gpr0 = from->Gpr0;
to->Gpr1 = from->Gpr1;
to->Gpr2 = from->Gpr2;
to->Gpr3 = from->Gpr3;
to->Gpr4 = from->Gpr4;
to->Gpr5 = from->Gpr5;
to->Gpr6 = from->Gpr6;
to->Gpr7 = from->Gpr7;
to->Gpr8 = from->Gpr8;
to->Gpr9 = from->Gpr9;
to->Gpr10 = from->Gpr10;
to->Gpr11 = from->Gpr11;
to->Gpr12 = from->Gpr12;
to->Gpr13 = from->Gpr13;
to->Gpr14 = from->Gpr14;
to->Gpr15 = from->Gpr15;
to->Gpr16 = from->Gpr16;
to->Gpr17 = from->Gpr17;
to->Gpr18 = from->Gpr18;
to->Gpr19 = from->Gpr19;
to->Gpr20 = from->Gpr20;
to->Gpr21 = from->Gpr21;
to->Gpr22 = from->Gpr22;
to->Gpr23 = from->Gpr23;
to->Gpr24 = from->Gpr24;
to->Gpr25 = from->Gpr25;
to->Gpr26 = from->Gpr26;
to->Gpr27 = from->Gpr27;
to->Gpr28 = from->Gpr28;
to->Gpr29 = from->Gpr29;
to->Gpr30 = from->Gpr30;
to->Gpr31 = from->Gpr31;
to->Xer = from->Xer;
to->Cr = from->Cr;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->Fpr0 = from->Fpr0;
to->Fpr1 = from->Fpr1;
to->Fpr2 = from->Fpr2;
to->Fpr3 = from->Fpr3;
to->Fpr4 = from->Fpr4;
to->Fpr5 = from->Fpr5;
to->Fpr6 = from->Fpr6;
to->Fpr7 = from->Fpr7;
to->Fpr8 = from->Fpr8;
to->Fpr9 = from->Fpr9;
to->Fpr10 = from->Fpr10;
to->Fpr11 = from->Fpr11;
to->Fpr12 = from->Fpr12;
to->Fpr13 = from->Fpr13;
to->Fpr14 = from->Fpr14;
to->Fpr15 = from->Fpr15;
to->Fpr16 = from->Fpr16;
to->Fpr17 = from->Fpr17;
to->Fpr18 = from->Fpr18;
to->Fpr19 = from->Fpr19;
to->Fpr20 = from->Fpr20;
to->Fpr21 = from->Fpr21;
to->Fpr22 = from->Fpr22;
to->Fpr23 = from->Fpr23;
to->Fpr24 = from->Fpr24;
to->Fpr25 = from->Fpr25;
to->Fpr26 = from->Fpr26;
to->Fpr27 = from->Fpr27;
to->Fpr28 = from->Fpr28;
to->Fpr29 = from->Fpr29;
to->Fpr30 = from->Fpr30;
to->Fpr31 = from->Fpr31;
to->Fpscr = from->Fpscr;
}
}
/***********************************************************************
* context_to_server
*
* Convert a register context to the server format.
*/
NTSTATUS context_to_server( context_t *to, const CONTEXT *from )
{
DWORD flags = from->ContextFlags; /* no CPU id? */
memset( to, 0, sizeof(*to) );
to->cpu = CPU_POWERPC;
if (flags & CONTEXT_CONTROL)
{
to->flags |= SERVER_CTX_CONTROL;
to->ctl.powerpc_regs.iar = from->Iar;
to->ctl.powerpc_regs.msr = from->Msr;
to->ctl.powerpc_regs.ctr = from->Ctr;
to->ctl.powerpc_regs.lr = from->Lr;
to->ctl.powerpc_regs.dar = from->Dar;
to->ctl.powerpc_regs.dsisr = from->Dsisr;
to->ctl.powerpc_regs.trap = from->Trap;
}
if (flags & CONTEXT_INTEGER)
{
to->flags |= SERVER_CTX_INTEGER;
to->integer.powerpc_regs.gpr[0] = from->Gpr0;
to->integer.powerpc_regs.gpr[1] = from->Gpr1;
to->integer.powerpc_regs.gpr[2] = from->Gpr2;
to->integer.powerpc_regs.gpr[3] = from->Gpr3;
to->integer.powerpc_regs.gpr[4] = from->Gpr4;
to->integer.powerpc_regs.gpr[5] = from->Gpr5;
to->integer.powerpc_regs.gpr[6] = from->Gpr6;
to->integer.powerpc_regs.gpr[7] = from->Gpr7;
to->integer.powerpc_regs.gpr[8] = from->Gpr8;
to->integer.powerpc_regs.gpr[9] = from->Gpr9;
to->integer.powerpc_regs.gpr[10] = from->Gpr10;
to->integer.powerpc_regs.gpr[11] = from->Gpr11;
to->integer.powerpc_regs.gpr[12] = from->Gpr12;
to->integer.powerpc_regs.gpr[13] = from->Gpr13;
to->integer.powerpc_regs.gpr[14] = from->Gpr14;
to->integer.powerpc_regs.gpr[15] = from->Gpr15;
to->integer.powerpc_regs.gpr[16] = from->Gpr16;
to->integer.powerpc_regs.gpr[17] = from->Gpr17;
to->integer.powerpc_regs.gpr[18] = from->Gpr18;
to->integer.powerpc_regs.gpr[19] = from->Gpr19;
to->integer.powerpc_regs.gpr[20] = from->Gpr20;
to->integer.powerpc_regs.gpr[21] = from->Gpr21;
to->integer.powerpc_regs.gpr[22] = from->Gpr22;
to->integer.powerpc_regs.gpr[23] = from->Gpr23;
to->integer.powerpc_regs.gpr[24] = from->Gpr24;
to->integer.powerpc_regs.gpr[25] = from->Gpr25;
to->integer.powerpc_regs.gpr[26] = from->Gpr26;
to->integer.powerpc_regs.gpr[27] = from->Gpr27;
to->integer.powerpc_regs.gpr[28] = from->Gpr28;
to->integer.powerpc_regs.gpr[29] = from->Gpr29;
to->integer.powerpc_regs.gpr[30] = from->Gpr30;
to->integer.powerpc_regs.gpr[31] = from->Gpr31;
to->integer.powerpc_regs.xer = from->Xer;
to->integer.powerpc_regs.cr = from->Cr;
}
if (flags & CONTEXT_FLOATING_POINT)
{
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;
}
/***********************************************************************
* NtSetContextThread (NTDLL.@)
* ZwSetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
{
NTSTATUS ret;
BOOL self;
context_t server_context;
context_to_server( &server_context, context );
ret = set_thread_context( handle, &server_context, &self );
if (self && ret == STATUS_SUCCESS) set_cpu_context( context );
return ret;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/**********************************************************************
* call_stack_handlers
*
* Call the stack handlers chain.
*/
static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
{
EXCEPTION_POINTERS ptrs;
FIXME( "not implemented on PowerPC\n" );
/* hack: call unhandled exception filter directly */
ptrs.ExceptionRecord = rec;
ptrs.ContextRecord = context;
call_unhandled_exception_filter( &ptrs );
return STATUS_UNHANDLED_EXCEPTION;
}
/*******************************************************************
* raise_exception
*
* Implementation of NtRaiseException.
*/
static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
{
NTSTATUS status;
if (first_chance)
{
DWORD c;
TRACE( "code=%x flags=%x addr=%p ip=%x tid=%04x\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
context->Iar, GetCurrentThreadId() );
for (c = 0; c < rec->NumberParameters; c++)
TRACE( " info[%d]=%08lx\n", c, rec->ExceptionInformation[c] );
if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
{
if (rec->ExceptionInformation[1] >> 16)
MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
rec->ExceptionAddress,
(char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
else
MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
rec->ExceptionAddress,
(char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
}
else
{
/* FIXME: dump context */
}
status = send_debug_event( rec, TRUE, context );
if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
return STATUS_SUCCESS;
if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
return STATUS_SUCCESS;
if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
return status;
}
/* last chance exception */
status = send_debug_event( rec, FALSE, context );
if (status != DBG_CONTINUE)
{
if (rec->ExceptionFlags & EH_STACK_INVALID)
ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
ERR("Process attempted to continue execution after noncontinuable exception.\n");
else
ERR("Unhandled exception code %x flags %x addr %p\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
}
return STATUS_SUCCESS;
}
/**********************************************************************
* segv_handler
*
* Handler for SIGSEGV and related errors.
*/
static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec;
CONTEXT context;
NTSTATUS status;
save_context( &context, sigcontext );
rec.ExceptionRecord = NULL;
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionAddress = (LPVOID)context.Iar;
rec.NumberParameters = 0;
switch (signal)
{
case SIGSEGV:
switch (siginfo->si_code & 0xffff)
{
case SEGV_MAPERR:
case SEGV_ACCERR:
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = 0; /* FIXME ? */
rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0], FALSE)))
goto done;
break;
default:
FIXME("Unhandled SIGSEGV/%x\n",siginfo->si_code);
break;
}
break;
case SIGBUS:
switch (siginfo->si_code & 0xffff)
{
case BUS_ADRALN:
rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
#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)siginfo->si_addr;
if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0], FALSE)))
goto done;
break;
#endif
default:
FIXME("Unhandled SIGBUS/%x\n",siginfo->si_code);
break;
}
break;
case SIGILL:
switch (siginfo->si_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", siginfo->si_code);
break;
}
break;
}
status = raise_exception( &rec, &context, TRUE );
if (status) raise_status( status, &rec );
done:
restore_context( &context, sigcontext );
}
/**********************************************************************
* trap_handler
*
* Handler for SIGTRAP.
*/
static void trap_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec;
CONTEXT context;
NTSTATUS status;
save_context( &context, sigcontext );
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = (LPVOID)context.Iar;
rec.NumberParameters = 0;
/* FIXME: check if we might need to modify PC */
switch (siginfo->si_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", siginfo->si_code);
break;
}
status = raise_exception( &rec, &context, TRUE );
if (status) raise_status( status, &rec );
restore_context( &context, sigcontext );
}
/**********************************************************************
* fpe_handler
*
* Handler for SIGFPE.
*/
static void fpe_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec;
CONTEXT context;
NTSTATUS status;
save_fpu( &context, sigcontext );
save_context( &context, sigcontext );
switch (siginfo->si_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 = (LPVOID)context.Iar;
rec.NumberParameters = 0;
status = raise_exception( &rec, &context, TRUE );
if (status) raise_status( status, &rec );
restore_context( &context, sigcontext );
restore_fpu( &context, sigcontext );
}
/**********************************************************************
* int_handler
*
* Handler for SIGINT.
*/
static void int_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
if (!dispatch_signal(SIGINT))
{
EXCEPTION_RECORD rec;
CONTEXT context;
NTSTATUS status;
save_context( &context, sigcontext );
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, sigcontext );
}
}
/**********************************************************************
* abrt_handler
*
* Handler for SIGABRT.
*/
static void abrt_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec;
CONTEXT context;
NTSTATUS status;
save_context( &context, sigcontext );
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, sigcontext );
}
/**********************************************************************
* quit_handler
*
* Handler for SIGQUIT.
*/
static void quit_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
abort_thread(0);
}
/**********************************************************************
* usr1_handler
*
* Handler for SIGUSR1, used to signal a thread that it got suspended.
*/
static void usr1_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
CONTEXT context;
save_context( &context, sigcontext );
wait_suspend( &context );
restore_context( &context, sigcontext );
}
/***********************************************************************
* __wine_set_signal_handler (NTDLL.@)
*/
int CDECL __wine_set_signal_handler(unsigned int sig, wine_signal_handler wsh)
{
if (sig >= ARRAY_SIZE(handlers)) 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_alignment;
SIZE_T size;
NTSTATUS status;
if (!sigstack_alignment)
{
size_t min_size = page_size; /* 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_alignment) < min_size) sigstack_alignment++;
assert( sizeof(TEB) <= min_size );
}
size = 1 << sigstack_alignment;
*teb = NULL;
if (!(status = virtual_alloc_aligned( (void **)teb, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
PAGE_READWRITE, sigstack_alignment )))
{
(*teb)->Tib.Self = &(*teb)->Tib;
(*teb)->Tib.ExceptionList = (void *)~0UL;
}
return status;
}
/**********************************************************************
* signal_free_thread
*/
void signal_free_thread( TEB *teb )
{
SIZE_T size = 0;
NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
}
/**********************************************************************
* signal_init_thread
*/
void signal_init_thread( TEB *teb )
{
static BOOL init_done;
if (!init_done)
{
pthread_key_create( &teb_key, NULL );
init_done = TRUE;
}
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
return;
error:
perror("sigaction");
exit(1);
}
/***********************************************************************
* RtlUnwind (NTDLL.@)
*/
void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
{
FIXME( "Not implemented on PowerPC\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.Iar;
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
*/
static void WINAPI call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
RtlExitUserThread( entry( arg ));
}
__EXCEPT(call_unhandled_exception_filter)
{
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
abort(); /* should not be reached */
}
typedef void (WINAPI *thread_start_func)(LPTHREAD_START_ROUTINE,void *);
struct startup_info
{
thread_start_func start;
LPTHREAD_START_ROUTINE entry;
void *arg;
BOOL suspend;
};
/* FIXME: should set the full context instead */
extern void DECLSPEC_NORETURN switch_to_stack( void (*func)(void *), void *arg, void *stack );
__ASM_GLOBAL_FUNC( switch_to_stack,
"subi 5, 5, 16\n\t" /* reserve space on new stack */
"mtctr 3\n\t" /* func -> ctr */
"mr 3,4\n\t" /* args -> function param 1 (r3) */
"mr 1,5\n\t" /* stack */
"li 0, 0\n\t" /* zero */
"stw 0, 0(1)\n\t" /* bottom of stack */
"stwu 1, -16(1)\n\t" /* create a frame for this function */
"bctrl" ) /* call ctr */
/***********************************************************************
* thread_startup
*/
static void thread_startup( void *param )
{
CONTEXT context = { 0 };
struct startup_info *info = param;
/* build the initial context */
context.ContextFlags = CONTEXT_FULL;
context.Gpr1 = (DWORD)NtCurrentTeb()->Tib.StackBase;
context.Gpr3 = (DWORD)info->entry;
context.Gpr4 = (DWORD)info->arg;
context.Iar = (DWORD)info->start;
if (info->suspend) wait_suspend( &context );
LdrInitializeThunk( &context, (void **)&context.Gpr3, 0, 0 );
((thread_start_func)context.Iar)( (LPTHREAD_START_ROUTINE)context.Gpr3, (void *)context.Gpr4 );
}
/***********************************************************************
* signal_start_thread
*
* Thread startup sequence:
* signal_start_thread()
* -> thread_startup()
* -> call_thread_entry_point()
*/
void signal_start_thread( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend )
{
struct startup_info info = { call_thread_entry_point, entry, arg, suspend };
switch_to_stack( thread_startup, &info, NtCurrentTeb()->Tib.StackBase );
}
/**********************************************************************
* signal_start_process
*
* Process startup sequence:
* signal_start_process()
* -> thread_startup()
* -> kernel32_start_process()
*/
void signal_start_process( LPTHREAD_START_ROUTINE entry, BOOL suspend )
{
struct startup_info info = { kernel32_start_process, entry, NtCurrentTeb()->Peb, suspend };
switch_to_stack( thread_startup, &info, NtCurrentTeb()->Tib.StackBase );
}
/***********************************************************************
* signal_exit_thread
*/
void signal_exit_thread( int status )
{
exit_thread( status );
}
/***********************************************************************
* signal_exit_process
*/
void signal_exit_process( int status )
{
exit( 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 /* __powerpc__ */
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