#include "qemu.h"
#include "qemu-common.h"
-#include "target_signal.h"
#include "trace.h"
#include "signal-common.h"
return 0;
}
-#if !defined(TARGET_OPENRISC) && !defined(TARGET_NIOS2)
+#if !defined(TARGET_NIOS2)
/* Just set the guest's signal mask to the specified value; the
* caller is assumed to have called block_signals() already.
*/
}
#endif
+/* sigaltstack management */
+
+int on_sig_stack(unsigned long sp)
+{
+ return (sp - target_sigaltstack_used.ss_sp
+ < target_sigaltstack_used.ss_size);
+}
+
+int sas_ss_flags(unsigned long sp)
+{
+ return (target_sigaltstack_used.ss_size == 0 ? SS_DISABLE
+ : on_sig_stack(sp) ? SS_ONSTACK : 0);
+}
+
+abi_ulong target_sigsp(abi_ulong sp, struct target_sigaction *ka)
+{
+ /*
+ * This is the X/Open sanctioned signal stack switching.
+ */
+ if ((ka->sa_flags & TARGET_SA_ONSTACK) && !sas_ss_flags(sp)) {
+ return target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+ }
+ return sp;
+}
+
+void target_save_altstack(target_stack_t *uss, CPUArchState *env)
+{
+ __put_user(target_sigaltstack_used.ss_sp, &uss->ss_sp);
+ __put_user(sas_ss_flags(get_sp_from_cpustate(env)), &uss->ss_flags);
+ __put_user(target_sigaltstack_used.ss_size, &uss->ss_size);
+}
+
/* siginfo conversion */
static inline void host_to_target_siginfo_noswap(target_siginfo_t *tinfo,
act.sa_flags = SA_SIGINFO;
act.sa_sigaction = host_signal_handler;
for(i = 1; i <= TARGET_NSIG; i++) {
+#ifdef TARGET_GPROF
+ if (i == SIGPROF) {
+ continue;
+ }
+#endif
host_sig = target_to_host_signal(i);
sigaction(host_sig, NULL, &oact);
if (oact.sa_sigaction == (void *)SIG_IGN) {
int queue_signal(CPUArchState *env, int sig, int si_type,
target_siginfo_t *info)
{
- CPUState *cpu = ENV_GET_CPU(env);
+ CPUState *cpu = env_cpu(env);
TaskState *ts = cpu->opaque;
trace_user_queue_signal(env, sig);
void *puc)
{
CPUArchState *env = thread_cpu->env_ptr;
- CPUState *cpu = ENV_GET_CPU(env);
+ CPUState *cpu = env_cpu(env);
TaskState *ts = cpu->opaque;
int sig;
}
#endif
- ret = -TARGET_EFAULT;
+ ret = -TARGET_EFAULT;
if (!lock_user_struct(VERIFY_READ, uss, uss_addr, 1)) {
goto out;
}
__get_user(ss.ss_flags, &uss->ss_flags);
unlock_user_struct(uss, uss_addr, 0);
- ret = -TARGET_EPERM;
- if (on_sig_stack(sp))
+ ret = -TARGET_EPERM;
+ if (on_sig_stack(sp))
goto out;
- ret = -TARGET_EINVAL;
- if (ss.ss_flags != TARGET_SS_DISABLE
+ ret = -TARGET_EINVAL;
+ if (ss.ss_flags != TARGET_SS_DISABLE
&& ss.ss_flags != TARGET_SS_ONSTACK
&& ss.ss_flags != 0)
goto out;
- if (ss.ss_flags == TARGET_SS_DISABLE) {
+ if (ss.ss_flags == TARGET_SS_DISABLE) {
ss.ss_size = 0;
ss.ss_sp = 0;
- } else {
+ } else {
ret = -TARGET_ENOMEM;
if (ss.ss_size < minstacksize) {
goto out;
}
- }
+ }
target_sigaltstack_used.ss_sp = ss.ss_sp;
target_sigaltstack_used.ss_size = ss.ss_size;
static void handle_pending_signal(CPUArchState *cpu_env, int sig,
struct emulated_sigtable *k)
{
- CPUState *cpu = ENV_GET_CPU(cpu_env);
+ CPUState *cpu = env_cpu(cpu_env);
abi_ulong handler;
sigset_t set;
target_sigset_t target_old_set;
void process_pending_signals(CPUArchState *cpu_env)
{
- CPUState *cpu = ENV_GET_CPU(cpu_env);
+ CPUState *cpu = env_cpu(cpu_env);
int sig;
TaskState *ts = cpu->opaque;
sigset_t set;