| #ifndef WINELIB |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <signal.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <time.h> |
| #include <setjmp.h> |
| |
| #include <sys/time.h> |
| #include <sys/timeb.h> |
| |
| #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__svr4__) || defined(_SCO_DS) |
| #ifndef _SCO_DS |
| #include <sys/syscall.h> |
| #endif |
| #include <sys/param.h> |
| #else |
| #include <syscall.h> |
| #endif |
| |
| #include "debugger.h" |
| #include "miscemu.h" |
| #include "registers.h" |
| #include "win.h" |
| |
| #if !defined(BSD4_4) || defined(linux) || defined(__FreeBSD__) |
| char * cstack[4096]; |
| #endif |
| |
| #ifdef linux |
| extern void ___sig_restore(); |
| extern void ___masksig_restore(); |
| |
| /* Similar to the sigaction function in libc, except it leaves alone the |
| restorer field */ |
| |
| static int |
| wine_sigaction(int sig,struct sigaction * new, struct sigaction * old) |
| { |
| __asm__("int $0x80":"=a" (sig) |
| :"0" (SYS_sigaction),"b" (sig),"c" (new),"d" (old)); |
| if (sig>=0) |
| return 0; |
| errno = -sig; |
| return -1; |
| } |
| #endif |
| |
| |
| /********************************************************************** |
| * wine_timer |
| * |
| * SIGALRM handler. |
| */ |
| #ifdef linux |
| static void wine_timer(int signal, struct sigcontext_struct context_struct) |
| { |
| #elif defined(__svr4__) |
| static void wine_timer(int signal, void *siginfo, ucontext_t *context) |
| { |
| #else |
| static void wine_timer(int signal, int code, struct sigcontext *context) |
| { |
| #endif |
| /* Should do real-time timers here */ |
| |
| DOSMEM_Tick(); |
| } |
| |
| |
| /********************************************************************** |
| * SIGNAL_trap |
| * |
| * SIGTRAP handler. |
| */ |
| #ifdef linux |
| static void SIGNAL_trap(int signal, struct sigcontext_struct context_struct) |
| { |
| struct sigcontext_struct *context = &context_struct; |
| #elif defined(__svr4__) || defined(_SCO_DS) |
| static void SIGNAL_trap(int signal, void *siginfo, ucontext_t *context) |
| { |
| #else |
| static void SIGNAL_trap(int signal, int code, struct sigcontext *context) |
| { |
| #endif |
| wine_debug( signal, context ); /* Enter our debugger */ |
| } |
| |
| |
| /********************************************************************** |
| * SIGNAL_fault |
| * |
| * Segfault handler. |
| */ |
| #ifdef linux |
| static void SIGNAL_fault(int signal, struct sigcontext_struct context_struct) |
| { |
| struct sigcontext_struct *context = &context_struct; |
| #elif defined(__svr4__) || defined(_SCO_DS) |
| static void SIGNAL_fault(int signal, void *siginfo, ucontext_t *context) |
| { |
| #else |
| static void SIGNAL_fault(int signal, int code, struct sigcontext *context) |
| { |
| #endif |
| if (CS_reg(context) == WINE_CODE_SELECTOR) |
| { |
| fprintf( stderr, "Segmentation fault in Wine program (%x:%lx)." |
| " Please debug.\n", |
| CS_reg(context), EIP_reg(context) ); |
| } |
| else |
| { |
| if (INSTR_EmulateInstruction( context )) return; |
| fprintf( stderr, "Segmentation fault in Windows program %x:%lx.\n", |
| CS_reg(context), EIP_reg(context) ); |
| } |
| wine_debug( signal, context ); |
| } |
| |
| |
| /********************************************************************** |
| * SIGNAL_SetHandler |
| */ |
| static void SIGNAL_SetHandler( int sig, void (*func)() ) |
| { |
| int ret; |
| struct sigaction sig_act; |
| |
| #ifdef linux |
| sig_act.sa_handler = func; |
| sig_act.sa_flags = SA_RESTART | SA_NOMASK; |
| /* Point to the top of the stack, minus 4 just in case, and make |
| it aligned */ |
| sig_act.sa_restorer = |
| (void (*)()) (((unsigned int)(cstack) + sizeof(cstack) - 4) & ~3); |
| ret = wine_sigaction( sig, &sig_act, NULL ); |
| #endif /* linux */ |
| |
| #if defined(__NetBSD__) || defined(__FreeBSD__) |
| sigset_t sig_mask; |
| sigemptyset(&sig_mask); |
| sig_act.sa_handler = func; |
| sig_act.sa_flags = SA_ONSTACK; |
| sig_act.sa_mask = sig_mask; |
| ret = sigaction( sig, &sig_act, NULL ); |
| #endif /* __FreeBSD__ || __NetBSD__ */ |
| |
| #if defined (__svr4__) || defined(_SCO_DS) |
| sigset_t sig_mask; |
| sigemptyset(&sig_mask); |
| sig_act.sa_handler = func; |
| sig_act.sa_flags = SA_ONSTACK | SA_SIGINFO; |
| sig_act.sa_mask = sig_mask; |
| ret = sigaction( sig, &sig_act, NULL ); |
| #endif /* __svr4__ || _SCO_DS */ |
| |
| if (ret < 0) |
| { |
| perror( "sigaction" ); |
| exit(1); |
| } |
| } |
| |
| extern void stop_wait(int a); |
| |
| |
| /********************************************************************** |
| * init_wine_signals |
| */ |
| void init_wine_signals(void) |
| { |
| #if defined(__NetBSD__) || defined(__FreeBSD__) |
| struct sigaltstack ss; |
| |
| if ((ss.ss_sp = malloc(MINSIGSTKSZ)) == NULL) { |
| fprintf(stderr, "Unable to allocate signal stack (%d bytes)\n", |
| MINSIGSTKSZ); |
| exit(1); |
| } |
| ss.ss_size = MINSIGSTKSZ; |
| ss.ss_flags = 0; |
| if (sigaltstack(&ss, NULL) < 0) { |
| perror("sigstack"); |
| exit(1); |
| } |
| #endif /* __FreeBSD__ || __NetBSD__ */ |
| |
| #if defined (__svr4__) || defined(_SCO_DS) |
| struct sigaltstack ss; |
| |
| if ((ss.ss_sp = malloc(SIGSTKSZ) ) == NULL) { |
| fprintf(stderr, "Unable to allocate signal stack (%d bytes)\n", |
| SIGSTKSZ); |
| exit(1); |
| } |
| ss.ss_size = SIGSTKSZ; |
| ss.ss_flags = 0; |
| if (sigaltstack(&ss, NULL) < 0) { |
| perror("sigstack"); |
| exit(1); |
| } |
| #endif /* __svr4__ || _SCO_DS */ |
| |
| SIGNAL_SetHandler( SIGALRM, (void (*)())wine_timer ); |
| SIGNAL_SetHandler( SIGSEGV, (void (*)())SIGNAL_fault ); |
| SIGNAL_SetHandler( SIGILL, (void (*)())SIGNAL_fault ); |
| SIGNAL_SetHandler( SIGFPE, (void (*)())SIGNAL_fault ); |
| SIGNAL_SetHandler( SIGTRAP, (void (*)())SIGNAL_trap ); /* debugger */ |
| SIGNAL_SetHandler( SIGHUP, (void (*)())SIGNAL_trap ); /* forced break */ |
| #ifdef SIGBUS |
| SIGNAL_SetHandler( SIGBUS, (void (*)())SIGNAL_fault ); |
| #endif |
| #ifdef CONFIG_IPC |
| SIGNAL_SetHandler( SIGUSR2, (void (*)())stop_wait ); /* For IPC */ |
| #endif |
| } |
| |
| |
| /********************************************************************** |
| * SIGNAL_StartBIOSTimer |
| * |
| * Start the BIOS tick timer. |
| */ |
| void SIGNAL_StartBIOSTimer(void) |
| { |
| struct itimerval vt_timer; |
| static int timer_started = 0; |
| |
| if (timer_started) return; |
| timer_started = 1; |
| vt_timer.it_interval.tv_sec = 0; |
| vt_timer.it_interval.tv_usec = 54929; |
| vt_timer.it_value = vt_timer.it_interval; |
| |
| setitimer(ITIMER_REAL, &vt_timer, NULL); |
| } |
| |
| #endif /* ifndef WINELIB */ |