mirror of https://github.com/xemu-project/xemu.git
linux-user: cleanup signal.c
No functional changes. Prepare the field for future fixes. Remove memset(.., 0, ...) that is useless on a static array Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200212125658.644558-3-laurent@vivier.eu>
This commit is contained in:
parent
9d660adc32
commit
365510fb86
|
@ -66,12 +66,6 @@ static uint8_t host_to_target_signal_table[_NSIG] = {
|
||||||
[SIGPWR] = TARGET_SIGPWR,
|
[SIGPWR] = TARGET_SIGPWR,
|
||||||
[SIGSYS] = TARGET_SIGSYS,
|
[SIGSYS] = TARGET_SIGSYS,
|
||||||
/* next signals stay the same */
|
/* next signals stay the same */
|
||||||
/* Nasty hack: Reverse SIGRTMIN and SIGRTMAX to avoid overlap with
|
|
||||||
host libpthread signals. This assumes no one actually uses SIGRTMAX :-/
|
|
||||||
To fix this properly we need to do manual signal delivery multiplexed
|
|
||||||
over a single host signal. */
|
|
||||||
[__SIGRTMIN] = __SIGRTMAX,
|
|
||||||
[__SIGRTMAX] = __SIGRTMIN,
|
|
||||||
};
|
};
|
||||||
static uint8_t target_to_host_signal_table[_NSIG];
|
static uint8_t target_to_host_signal_table[_NSIG];
|
||||||
|
|
||||||
|
@ -480,31 +474,45 @@ static int core_dump_signal(int sig)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static void signal_table_init(void)
|
||||||
|
{
|
||||||
|
int host_sig, target_sig;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Nasty hack: Reverse SIGRTMIN and SIGRTMAX to avoid overlap with
|
||||||
|
* host libpthread signals. This assumes no one actually uses SIGRTMAX :-/
|
||||||
|
* To fix this properly we need to do manual signal delivery multiplexed
|
||||||
|
* over a single host signal.
|
||||||
|
*/
|
||||||
|
host_to_target_signal_table[__SIGRTMIN] = __SIGRTMAX;
|
||||||
|
host_to_target_signal_table[__SIGRTMAX] = __SIGRTMIN;
|
||||||
|
|
||||||
|
/* generate signal conversion tables */
|
||||||
|
for (host_sig = 1; host_sig < _NSIG; host_sig++) {
|
||||||
|
if (host_to_target_signal_table[host_sig] == 0) {
|
||||||
|
host_to_target_signal_table[host_sig] = host_sig;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for (host_sig = 1; host_sig < _NSIG; host_sig++) {
|
||||||
|
target_sig = host_to_target_signal_table[host_sig];
|
||||||
|
target_to_host_signal_table[target_sig] = host_sig;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
void signal_init(void)
|
void signal_init(void)
|
||||||
{
|
{
|
||||||
TaskState *ts = (TaskState *)thread_cpu->opaque;
|
TaskState *ts = (TaskState *)thread_cpu->opaque;
|
||||||
struct sigaction act;
|
struct sigaction act;
|
||||||
struct sigaction oact;
|
struct sigaction oact;
|
||||||
int i, j;
|
int i;
|
||||||
int host_sig;
|
int host_sig;
|
||||||
|
|
||||||
/* generate signal conversion tables */
|
/* initialize signal conversion tables */
|
||||||
for(i = 1; i < _NSIG; i++) {
|
signal_table_init();
|
||||||
if (host_to_target_signal_table[i] == 0)
|
|
||||||
host_to_target_signal_table[i] = i;
|
|
||||||
}
|
|
||||||
for(i = 1; i < _NSIG; i++) {
|
|
||||||
j = host_to_target_signal_table[i];
|
|
||||||
target_to_host_signal_table[j] = i;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Set the signal mask from the host mask. */
|
/* Set the signal mask from the host mask. */
|
||||||
sigprocmask(0, 0, &ts->signal_mask);
|
sigprocmask(0, 0, &ts->signal_mask);
|
||||||
|
|
||||||
/* set all host signal handlers. ALL signals are blocked during
|
|
||||||
the handlers to serialize them. */
|
|
||||||
memset(sigact_table, 0, sizeof(sigact_table));
|
|
||||||
|
|
||||||
sigfillset(&act.sa_mask);
|
sigfillset(&act.sa_mask);
|
||||||
act.sa_flags = SA_SIGINFO;
|
act.sa_flags = SA_SIGINFO;
|
||||||
act.sa_sigaction = host_signal_handler;
|
act.sa_sigaction = host_signal_handler;
|
||||||
|
|
Loading…
Reference in New Issue