Move most sig numbers to redox_rt.

src/flag.rs

@@ -272,37 +272,10 @@ pub const SEEK_SET: usize = 0;
 pub const SEEK_CUR: usize = 1;
 pub const SEEK_END: usize = 2;
 
-pub const SIGHUP: usize = 1;
-pub const SIGINT: usize = 2;
-pub const SIGQUIT: usize = 3;
-pub const SIGILL: usize = 4;
-pub const SIGTRAP: usize = 5;
-pub const SIGABRT: usize = 6;
-pub const SIGBUS: usize = 7;
-pub const SIGFPE: usize = 8;
-pub const SIGKILL: usize = 9;
-pub const SIGUSR1: usize = 10;
-pub const SIGSEGV: usize = 11;
-pub const SIGUSR2: usize = 12;
-pub const SIGPIPE: usize = 13;
-pub const SIGALRM: usize = 14;
-pub const SIGTERM: usize = 15;
-pub const SIGSTKFLT: usize = 16;
 pub const SIGCHLD: usize = 17;
-pub const SIGCONT: usize = 18;
-pub const SIGSTOP: usize = 19;
 pub const SIGTSTP: usize = 20;
 pub const SIGTTIN: usize = 21;
 pub const SIGTTOU: usize = 22;
-pub const SIGURG: usize = 23;
-pub const SIGXCPU: usize = 24;
-pub const SIGXFSZ: usize = 25;
-pub const SIGVTALRM: usize = 26;
-pub const SIGPROF: usize = 27;
-pub const SIGWINCH: usize = 28;
-pub const SIGIO: usize = 29;
-pub const SIGPWR: usize = 30;
-pub const SIGSYS: usize = 31;
 
 pub const ADDRSPACE_OP_MMAP: usize = 0;
 pub const ADDRSPACE_OP_MUNMAP: usize = 1;

src/sigabi.rs

@@ -20,7 +20,7 @@ pub struct RealtimeSig {
 pub struct RawAction {
     /// Only two MSBs are interesting for the kernel. If bit 63 is set, signal is ignored. If bit
     /// 62 is set and the signal is SIGTSTP/SIGTTIN/SIGTTOU, it's equivalent to the action of
-    /// SIGSTOP.
+    /// Stop.
     pub first: AtomicU64,
     /// Completely ignored by the kernel, but exists so userspace can (when 16-byte atomics exist)
     /// atomically set both the handler, sigaction flags, and sigaction mask.
@@ -134,6 +134,7 @@ pub fn sig_bit(sig: usize) -> u64 {
     1 << (sig - 1)
 }
 impl SigProcControl {
+    // TODO: Move to redox_rt?
     pub fn signal_will_ign(&self, sig: usize, is_parent_sigchld: bool) -> bool {
         let flags = self.actions[sig - 1].first.load(Ordering::Relaxed);
         let will_ign = flags & (1 << 63) != 0;
@@ -141,6 +142,7 @@ impl SigProcControl {
 
         will_ign || (sig == SIGCHLD && is_parent_sigchld && sig_specific)
     }
+    // TODO: Move to redox_rt?
     pub fn signal_will_stop(&self, sig: usize) -> bool {
         use crate::flag::*;
         matches!(sig, SIGTSTP | SIGTTIN | SIGTTOU)