remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG
the issue at hand is that many syscalls require as an argument the
kernel-ABI size of sigset_t, intended to allow the kernel to switch to
a larger sigset_t in the future. previously, each arch was defining
this size in syscall_arch.h, which was redundant with the definition
of _NSIG in bits/signal.h. as it's used in some not-quite-portable
application code as well, _NSIG is much more likely to be recognized
and understood immediately by someone reading the code, and it's also
shorter and less cluttered.
note that _NSIG is actually 65/129, not 64/128, but the division takes
care of throwing away the off-by-one part.
diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
index d11dcfa..059c20e 100644
--- a/src/thread/pthread_create.c
+++ b/src/thread/pthread_create.c
@@ -40,7 +40,7 @@
if (self->detached == 2)
__syscall(SYS_set_tid_address, 0);
__syscall(SYS_rt_sigprocmask, SIG_BLOCK,
- SIGALL_SET, 0, __SYSCALL_SSLEN);
+ SIGALL_SET, 0, _NSIG/8);
__unmapself(self->map_base, self->map_size);
}
@@ -69,11 +69,11 @@
pthread_exit(0);
}
__syscall(SYS_rt_sigprocmask, SIG_SETMASK,
- self->sigmask, 0, __SYSCALL_SSLEN);
+ self->sigmask, 0, _NSIG/8);
}
if (self->unblock_cancel)
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK,
- SIGPT_SET, 0, __SYSCALL_SSLEN);
+ SIGPT_SET, 0, _NSIG/8);
pthread_exit(self->start(self->start_arg));
return 0;
}
@@ -171,7 +171,7 @@
if (attr._a_sched) {
do_sched = new->startlock[0] = 1;
__syscall(SYS_rt_sigprocmask, SIG_BLOCK,
- SIGALL_SET, self->sigmask, __SYSCALL_SSLEN);
+ SIGALL_SET, self->sigmask, _NSIG/8);
}
new->unblock_cancel = self->cancel;
new->canary = self->canary;
@@ -183,7 +183,7 @@
if (do_sched) {
__syscall(SYS_rt_sigprocmask, SIG_SETMASK,
- new->sigmask, 0, __SYSCALL_SSLEN);
+ new->sigmask, 0, _NSIG/8);
}
if (ret < 0) {