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Disable SIGUSR2 handler in EMULATED_PPC mode for now

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This commit is contained in:
gbeauche 2003-09-28 21:20:38 +00:00
parent 9914de4a09
commit 28ae4b0028
2 changed files with 61 additions and 13 deletions
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73
SheepShaver/src/Unix/main_unix.cpp
View File

@ -238,8 +238,8 @@ static void Quit(void);
static void *emul_func(void *arg);
static void *nvram_func(void *arg);
static void *tick_func(void *arg);
static void sigusr2_handler(int sig, sigcontext_struct *sc);
#if !EMULATED_PPC
static void sigusr2_handler(int sig, sigcontext_struct *sc);
static void sigsegv_handler(int sig, sigcontext_struct *sc);
static void sigill_handler(int sig, sigcontext_struct *sc);
#endif
@ -717,19 +717,18 @@ int main(int argc, char **argv)
}
#endif
#if !EMULATED_PPC
// Install interrupt signal handler
sigemptyset(&sigusr2_action.sa_mask);
sigusr2_action.sa_handler = (__sighandler_t)sigusr2_handler;
sigusr2_action.sa_flags = 0;
#if !EMULATED_PPC
sigusr2_action.sa_flags = SA_ONSTACK | SA_RESTART;
#endif
sigusr2_action.sa_restorer = NULL;
if (sigaction(SIGUSR2, &sigusr2_action, NULL) < 0) {
sprintf(str, GetString(STR_SIGUSR2_INSTALL_ERR), strerror(errno));
ErrorAlert(str);
goto quit;
}
#endif
// Get my thread ID and execute MacOS thread function
emul_thread = pthread_self();
@ -917,7 +916,6 @@ void Execute68kTrap(uint16 trap, M68kRegisters *r)
uint16 proc[2] = {trap, M68K_RTS};
Execute68k((uint32)proc, r);
}
#endif
/*
@ -931,6 +929,7 @@ void ExecutePPC(void (*func)())
M68kRegisters r;
Execute68k((uint32)&desc, &r);
}
#endif
/*
@ -1121,6 +1120,56 @@ void Set_pthread_attr(pthread_attr_t *attr, int priority)
* Mutexes
*/
#ifdef HAVE_PTHREADS
struct B2_mutex {
B2_mutex() {
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
// Initialize the mutex for priority inheritance --
// required for accurate timing.
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL
pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
#endif
#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
#endif
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
#endif
pthread_mutex_init(&m, &attr);
pthread_mutexattr_destroy(&attr);
}
~B2_mutex() {
pthread_mutex_trylock(&m); // Make sure it's locked before
pthread_mutex_unlock(&m); // unlocking it.
pthread_mutex_destroy(&m);
}
pthread_mutex_t m;
};
B2_mutex *B2_create_mutex(void)
{
return new B2_mutex;
}
void B2_lock_mutex(B2_mutex *mutex)
{
pthread_mutex_lock(&mutex->m);
}
void B2_unlock_mutex(B2_mutex *mutex)
{
pthread_mutex_unlock(&mutex->m);
}
void B2_delete_mutex(B2_mutex *mutex)
{
delete mutex;
}
#else
struct B2_mutex {
int dummy;
};
@ -1143,16 +1192,20 @@ void B2_delete_mutex(B2_mutex *mutex)
delete mutex;
}
#endif
/*
* Trigger signal USR2 from another thread
*/
#if !EMULATED_PPC
void TriggerInterrupt(void)
{
if (ready_for_signals)
pthread_kill(emul_thread, SIGUSR2);
}
#endif
/*
@ -1178,7 +1231,7 @@ void ClearInterruptFlag(uint32 flag)
void DisableInterrupt(void)
{
atomic_add((int *)XLM_IRQ_NEST, tswap32(1));
atomic_add((int *)XLM_IRQ_NEST, 1);
}
@ -1188,19 +1241,17 @@ void DisableInterrupt(void)
void EnableInterrupt(void)
{
atomic_add((int *)XLM_IRQ_NEST, tswap32((uint32)-1));
atomic_add((int *)XLM_IRQ_NEST, -1);
}
#if !EMULATED_PPC
/*
* USR2 handler
*/
static void sigusr2_handler(int sig, sigcontext_struct *sc)
{
#if EMULATED_PPC
HandleInterrupt();
#else
pt_regs *r = sc->regs;
// Do nothing if interrupts are disabled
@ -1282,11 +1333,9 @@ static void sigusr2_handler(int sig, sigcontext_struct *sc)
#endif
}
#endif
}
#if !EMULATED_PPC
/*
* SIGSEGV handler
*/

1
SheepShaver/src/include/cpu_emulation.h
View File

@ -69,7 +69,6 @@ struct M68kRegisters;
extern void Execute68k(uint32, M68kRegisters *r); // Execute 68k subroutine from EMUL_OP routine, must be ended with RTS
extern void Execute68kTrap(uint16 trap, M68kRegisters *r); // Execute 68k A-Trap from EMUL_OP routine
#if EMULATED_PPC
extern void HandleInterrupt(void);
extern void ExecuteNative(int selector); // Execute native code from EMUL_OP routine (real mode switch)
#else
extern void ExecutePPC(void (*func)(void)); // Execute PPC code from EMUL_OP routine (real mode switch)