/* * 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> #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_VM86_H # include <sys/vm86.h> #endif #ifdef HAVE_SYS_SIGNAL_H # include <sys/signal.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); 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__ # include <sys/ucontext.h> # include <sys/types.h> /* 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. */ void set_cpu_context( const CONTEXT *context ) { FIXME("not implemented\n"); } /*********************************************************************** * copy_context * * Copy a register context according to the flags. */ 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; } /********************************************************************** * 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 */ } /********************************************************************** * 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; 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(), 1 ); } 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]))) 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]))) 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 ); } /********************************************************************** * 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 */ } /*********************************************************************** * __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) { 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); } /********************************************************************** * __wine_enter_vm86 (NTDLL.@) */ 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 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 ); } /********************************************************************** * 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__ */