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std: make signal numbers into an enum

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fixes start logic for checking whether IO/POLL exist
This commit is contained in:
Andrew Kelley 2025-10-27 16:16:49 -07:00
parent cc751c01f1
commit 8b269f7e18
12 changed files with 578 additions and 655 deletions
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4
lib/std/Io/Threaded.zig
View file

@ -75,10 +75,10 @@ const Closure = struct {
.none, .canceling => {},
else => |tid| {
if (std.Thread.use_pthreads) {
const rc = std.c.pthread_kill(tid.toThreadId(), posix.SIG.IO);
const rc = std.c.pthread_kill(tid.toThreadId(), .IO);
if (is_debug) assert(rc == 0);
} else if (native_os == .linux) {
_ = std.os.linux.tgkill(std.os.linux.getpid(), @bitCast(tid.toThreadId()), posix.SIG.IO);
_ = std.os.linux.tgkill(std.os.linux.getpid(), @bitCast(tid.toThreadId()), .IO);
}
},
}

6
lib/std/Progress.zig
View file

@ -493,7 +493,7 @@ pub fn start(options: Options) Node {
.mask = posix.sigemptyset(),
.flags = (posix.SA.SIGINFO | posix.SA.RESTART),
};
posix.sigaction(posix.SIG.WINCH, &act, null);
posix.sigaction(.WINCH, &act, null);
}
if (switch (global_progress.terminal_mode) {
@ -1535,10 +1535,10 @@ fn maybeUpdateSize(resize_flag: bool) void {
}
}
fn handleSigWinch(sig: i32, info: *const posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
fn handleSigWinch(sig: posix.SIG, info: *const posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
_ = info;
_ = ctx_ptr;
assert(sig == posix.SIG.WINCH);
assert(sig == .WINCH);
global_progress.redraw_event.set();
}

699
lib/std/c.zig
View file

@ -2587,25 +2587,24 @@ pub const SHUT = switch (native_os) {
/// Signal types
pub const SIG = switch (native_os) {
.linux => linux.SIG,
.emscripten => emscripten.SIG,
.windows => struct {
.linux, .emscripten => linux.SIG,
.windows => enum(u32) {
/// interrupt
pub const INT = 2;
INT = 2,
/// illegal instruction - invalid function image
pub const ILL = 4;
ILL = 4,
/// floating point exception
pub const FPE = 8;
FPE = 8,
/// segment violation
pub const SEGV = 11;
SEGV = 11,
/// Software termination signal from kill
pub const TERM = 15;
TERM = 15,
/// Ctrl-Break sequence
pub const BREAK = 21;
BREAK = 21,
/// abnormal termination triggered by abort call
pub const ABRT = 22;
ABRT = 22,
/// SIGABRT compatible with other platforms, same as SIGABRT
pub const ABRT_COMPAT = 6;
ABRT_COMPAT = 6,
// Signal action codes
/// default signal action
@ -2621,7 +2620,7 @@ pub const SIG = switch (native_os) {
/// Signal error value (returned by signal call on error)
pub const ERR = -1;
},
.macos, .ios, .tvos, .watchos, .visionos => struct {
.macos, .ios, .tvos, .watchos, .visionos => enum(u32) {
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
@ -2633,113 +2632,74 @@ pub const SIG = switch (native_os) {
pub const UNBLOCK = 2;
/// set specified signal set
pub const SETMASK = 3;
pub const IOT: SIG = .ABRT;
pub const POLL: SIG = .EMT;
/// hangup
pub const HUP = 1;
HUP = 1,
/// interrupt
pub const INT = 2;
INT = 2,
/// quit
pub const QUIT = 3;
QUIT = 3,
/// illegal instruction (not reset when caught)
pub const ILL = 4;
ILL = 4,
/// trace trap (not reset when caught)
pub const TRAP = 5;
TRAP = 5,
/// abort()
pub const ABRT = 6;
/// pollable event ([XSR] generated, not supported)
pub const POLL = 7;
/// compatibility
pub const IOT = ABRT;
ABRT = 6,
/// EMT instruction
pub const EMT = 7;
EMT = 7,
/// floating point exception
pub const FPE = 8;
FPE = 8,
/// kill (cannot be caught or ignored)
pub const KILL = 9;
KILL = 9,
/// bus error
pub const BUS = 10;
BUS = 10,
/// segmentation violation
pub const SEGV = 11;
SEGV = 11,
/// bad argument to system call
pub const SYS = 12;
SYS = 12,
/// write on a pipe with no one to read it
pub const PIPE = 13;
PIPE = 13,
/// alarm clock
pub const ALRM = 14;
ALRM = 14,
/// software termination signal from kill
pub const TERM = 15;
TERM = 15,
/// urgent condition on IO channel
pub const URG = 16;
URG = 16,
/// sendable stop signal not from tty
pub const STOP = 17;
STOP = 17,
/// stop signal from tty
pub const TSTP = 18;
TSTP = 18,
/// continue a stopped process
pub const CONT = 19;
CONT = 19,
/// to parent on child stop or exit
pub const CHLD = 20;
CHLD = 20,
/// to readers pgrp upon background tty read
pub const TTIN = 21;
TTIN = 21,
/// like TTIN for output if (tp->t_local&LTOSTOP)
pub const TTOU = 22;
TTOU = 22,
/// input/output possible signal
pub const IO = 23;
IO = 23,
/// exceeded CPU time limit
pub const XCPU = 24;
XCPU = 24,
/// exceeded file size limit
pub const XFSZ = 25;
XFSZ = 25,
/// virtual time alarm
pub const VTALRM = 26;
VTALRM = 26,
/// profiling time alarm
pub const PROF = 27;
PROF = 27,
/// window size changes
pub const WINCH = 28;
WINCH = 28,
/// information request
pub const INFO = 29;
INFO = 29,
/// user defined signal 1
pub const USR1 = 30;
USR1 = 30,
/// user defined signal 2
pub const USR2 = 31;
USR2 = 31,
},
.freebsd => struct {
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const IO = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const INFO = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const THR = 32;
pub const LWP = THR;
pub const LIBRT = 33;
pub const RTMIN = 65;
pub const RTMAX = 126;
.freebsd => enum(u32) {
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
@ -2763,8 +2723,48 @@ pub const SIG = switch (native_os) {
pub inline fn VALID(sig: usize) usize {
return sig <= MAXSIG and sig > 0;
}
pub const IOT: SIG = .ABRT;
pub const LWP: SIG = .THR;
pub const RTMIN = 65;
pub const RTMAX = 126;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
URG = 16,
STOP = 17,
TSTP = 18,
CONT = 19,
CHLD = 20,
TTIN = 21,
TTOU = 22,
IO = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
INFO = 29,
USR1 = 30,
USR2 = 31,
THR = 32,
LIBRT = 33,
},
.illumos => struct {
.illumos => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
@ -2773,54 +2773,9 @@ pub const SIG = switch (native_os) {
pub const WORDS = 4;
pub const MAXSIG = 75;
pub const SIG_BLOCK = 1;
pub const SIG_UNBLOCK = 2;
pub const SIG_SETMASK = 3;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const IOT = 6;
pub const ABRT = 6;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const USR1 = 16;
pub const USR2 = 17;
pub const CLD = 18;
pub const CHLD = 18;
pub const PWR = 19;
pub const WINCH = 20;
pub const URG = 21;
pub const POLL = 22;
pub const IO = .POLL;
pub const STOP = 23;
pub const TSTP = 24;
pub const CONT = 25;
pub const TTIN = 26;
pub const TTOU = 27;
pub const VTALRM = 28;
pub const PROF = 29;
pub const XCPU = 30;
pub const XFSZ = 31;
pub const WAITING = 32;
pub const LWP = 33;
pub const FREEZE = 34;
pub const THAW = 35;
pub const CANCEL = 36;
pub const LOST = 37;
pub const XRES = 38;
pub const JVM1 = 39;
pub const JVM2 = 40;
pub const INFO = 41;
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const RTMIN = 42;
pub const RTMAX = 74;
@ -2837,8 +2792,54 @@ pub const SIG = switch (native_os) {
pub inline fn VALID(sig: usize) usize {
return sig <= MAXSIG and sig > 0;
}
pub const POLL: SIG = .IO;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
IOT = 6,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
USR1 = 16,
USR2 = 17,
CLD = 18,
CHLD = 18,
PWR = 19,
WINCH = 20,
URG = 21,
IO = 22,
STOP = 23,
TSTP = 24,
CONT = 25,
TTIN = 26,
TTOU = 27,
VTALRM = 28,
PROF = 29,
XCPU = 30,
XFSZ = 31,
WAITING = 32,
LWP = 33,
FREEZE = 34,
THAW = 35,
CANCEL = 36,
LOST = 37,
XRES = 38,
JVM1 = 39,
JVM2 = 40,
INFO = 41,
},
.netbsd => struct {
.netbsd => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
@ -2850,40 +2851,6 @@ pub const SIG = switch (native_os) {
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const IO = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const INFO = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const PWR = 32;
pub const RTMIN = 33;
pub const RTMAX = 63;
@ -2899,8 +2866,43 @@ pub const SIG = switch (native_os) {
pub inline fn VALID(sig: usize) usize {
return sig <= MAXSIG and sig > 0;
}
pub const IOT: SIG = .ABRT;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
URG = 16,
STOP = 17,
TSTP = 18,
CONT = 19,
CHLD = 20,
TTIN = 21,
TTOU = 22,
IO = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
INFO = 29,
USR1 = 30,
USR2 = 31,
PWR = 32,
},
.dragonfly => struct {
.dragonfly => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
@ -2909,137 +2911,140 @@ pub const SIG = switch (native_os) {
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const IOT = ABRT;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const IO = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const INFO = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const THR = 32;
pub const CKPT = 33;
pub const CKPTEXIT = 34;
pub const WORDS = 4;
pub const IOT: SIG = .ABRT;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
URG = 16,
STOP = 17,
TSTP = 18,
CONT = 19,
CHLD = 20,
TTIN = 21,
TTOU = 22,
IO = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
INFO = 29,
USR1 = 30,
USR2 = 31,
THR = 32,
CKPT = 33,
CKPTEXIT = 34,
},
.haiku => struct {
.haiku => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const HOLD: ?Sigaction.handler_fn = @ptrFromInt(3);
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const CHLD = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const PIPE = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const STOP = 10;
pub const SEGV = 11;
pub const CONT = 12;
pub const TSTP = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const TTIN = 16;
pub const TTOU = 17;
pub const USR1 = 18;
pub const USR2 = 19;
pub const WINCH = 20;
pub const KILLTHR = 21;
pub const TRAP = 22;
pub const POLL = 23;
pub const PROF = 24;
pub const SYS = 25;
pub const URG = 26;
pub const VTALRM = 27;
pub const XCPU = 28;
pub const XFSZ = 29;
pub const BUS = 30;
pub const RESERVED1 = 31;
pub const RESERVED2 = 32;
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const IOT: SIG = .ABRT;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
CHLD = 5,
ABRT = 6,
PIPE = 7,
FPE = 8,
KILL = 9,
STOP = 10,
SEGV = 11,
CONT = 12,
TSTP = 13,
ALRM = 14,
TERM = 15,
TTIN = 16,
TTOU = 17,
USR1 = 18,
USR2 = 19,
WINCH = 20,
KILLTHR = 21,
TRAP = 22,
POLL = 23,
PROF = 24,
SYS = 25,
URG = 26,
VTALRM = 27,
XCPU = 28,
XFSZ = 29,
BUS = 30,
RESERVED1 = 31,
RESERVED2 = 32,
},
.openbsd => struct {
.openbsd => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const CATCH: ?Sigaction.handler_fn = @ptrFromInt(2);
pub const HOLD: ?Sigaction.handler_fn = @ptrFromInt(3);
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const IO = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const INFO = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const PWR = 32;
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const IOT: SIG = .ABRT;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
URG = 16,
STOP = 17,
TSTP = 18,
CONT = 19,
CHLD = 20,
TTIN = 21,
TTOU = 22,
IO = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
INFO = 29,
USR1 = 30,
USR2 = 31,
PWR = 32,
},
// https://github.com/SerenityOS/serenity/blob/046c23f567a17758d762a33bdf04bacbfd088f9f/Kernel/API/POSIX/signal.h
// https://github.com/SerenityOS/serenity/blob/046c23f567a17758d762a33bdf04bacbfd088f9f/Kernel/API/POSIX/signal_numbers.h
.serenity => struct {
.serenity => enum(u32) {
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
@ -3048,39 +3053,39 @@ pub const SIG = switch (native_os) {
pub const UNBLOCK = 2;
pub const SETMASK = 3;
pub const INVAL = 0;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const BUS = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const USR1 = 10;
pub const SEGV = 11;
pub const USR2 = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const STKFLT = 16;
pub const CHLD = 17;
pub const CONT = 18;
pub const STOP = 19;
pub const TSTP = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const URG = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const IO = 29;
pub const INFO = 30;
pub const SYS = 31;
pub const CANCEL = 32;
INVAL = 0,
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
BUS = 7,
FPE = 8,
KILL = 9,
USR1 = 10,
SEGV = 11,
USR2 = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
STKFLT = 16,
CHLD = 17,
CONT = 18,
STOP = 19,
TSTP = 20,
TTIN = 21,
TTOU = 22,
URG = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
IO = 29,
INFO = 30,
SYS = 31,
CANCEL = 32,
},
else => void,
};
@ -3117,8 +3122,8 @@ pub const SYS = switch (native_os) {
/// A common format for the Sigaction struct across a variety of Linux flavors.
const common_linux_Sigaction = extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
handler: extern union {
handler: ?handler_fn,
@ -3139,8 +3144,8 @@ pub const Sigaction = switch (native_os) {
=> if (builtin.target.abi.isMusl())
common_linux_Sigaction
else if (builtin.target.ptrBitWidth() == 64) extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
flags: c_uint,
handler: extern union {
@ -3150,8 +3155,8 @@ pub const Sigaction = switch (native_os) {
mask: sigset_t,
restorer: ?*const fn () callconv(.c) void = null,
} else extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
flags: c_uint,
handler: extern union {
@ -3163,8 +3168,8 @@ pub const Sigaction = switch (native_os) {
__resv: [1]c_int = .{0},
},
.s390x => if (builtin.abi == .gnu) extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
handler: extern union {
handler: ?handler_fn,
@ -3179,8 +3184,8 @@ pub const Sigaction = switch (native_os) {
},
.emscripten => emscripten.Sigaction,
.netbsd, .macos, .ios, .tvos, .watchos, .visionos => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
handler: extern union {
handler: ?handler_fn,
@ -3190,8 +3195,8 @@ pub const Sigaction = switch (native_os) {
flags: c_uint,
},
.dragonfly, .freebsd => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
/// signal handler
handler: extern union {
@ -3204,8 +3209,8 @@ pub const Sigaction = switch (native_os) {
mask: sigset_t,
},
.illumos => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
/// signal options
flags: c_uint,
@ -3218,8 +3223,8 @@ pub const Sigaction = switch (native_os) {
mask: sigset_t,
},
.haiku => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
/// signal handler
handler: extern union {
@ -3237,8 +3242,8 @@ pub const Sigaction = switch (native_os) {
userdata: *allowzero anyopaque = undefined,
},
.openbsd => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
/// signal handler
handler: extern union {
@ -3252,8 +3257,8 @@ pub const Sigaction = switch (native_os) {
},
// https://github.com/SerenityOS/serenity/blob/ec492a1a0819e6239ea44156825c4ee7234ca3db/Kernel/API/POSIX/signal.h#L39-L46
.serenity => extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
handler: extern union {
handler: ?handler_fn,
@ -4433,7 +4438,7 @@ pub const siginfo_t = switch (native_os) {
.linux => linux.siginfo_t,
.emscripten => emscripten.siginfo_t,
.driverkit, .macos, .ios, .tvos, .watchos, .visionos => extern struct {
signo: c_int,
signo: SIG,
errno: c_int,
code: c_int,
pid: pid_t,
@ -4449,7 +4454,7 @@ pub const siginfo_t = switch (native_os) {
},
.freebsd => extern struct {
// Signal number.
signo: c_int,
signo: SIG,
// Errno association.
errno: c_int,
/// Signal code.
@ -4492,7 +4497,7 @@ pub const siginfo_t = switch (native_os) {
},
},
.illumos => extern struct {
signo: c_int,
signo: SIG,
code: c_int,
errno: c_int,
// 64bit architectures insert 4bytes of padding here, this is done by
@ -4549,7 +4554,7 @@ pub const siginfo_t = switch (native_os) {
info: netbsd._ksiginfo,
},
.dragonfly => extern struct {
signo: c_int,
signo: SIG,
errno: c_int,
code: c_int,
pid: c_int,
@ -4561,7 +4566,7 @@ pub const siginfo_t = switch (native_os) {
__spare__: [7]c_int,
},
.haiku => extern struct {
signo: i32,
signo: SIG,
code: i32,
errno: i32,
@ -4570,7 +4575,7 @@ pub const siginfo_t = switch (native_os) {
addr: *allowzero anyopaque,
},
.openbsd => extern struct {
signo: c_int,
signo: SIG,
code: c_int,
errno: c_int,
data: extern union {
@ -4605,7 +4610,7 @@ pub const siginfo_t = switch (native_os) {
},
// https://github.com/SerenityOS/serenity/blob/ec492a1a0819e6239ea44156825c4ee7234ca3db/Kernel/API/POSIX/signal.h#L27-L37
.serenity => extern struct {
signo: c_int,
signo: SIG,
code: c_int,
errno: c_int,
pid: pid_t,
@ -10581,7 +10586,7 @@ pub extern "c" fn lseek(fd: fd_t, offset: off_t, whence: whence_t) off_t;
pub extern "c" fn open(path: [*:0]const u8, oflag: O, ...) c_int;
pub extern "c" fn openat(fd: c_int, path: [*:0]const u8, oflag: O, ...) c_int;
pub extern "c" fn ftruncate(fd: c_int, length: off_t) c_int;
pub extern "c" fn raise(sig: c_int) c_int;
pub extern "c" fn raise(sig: SIG) c_int;
pub extern "c" fn read(fd: fd_t, buf: [*]u8, nbyte: usize) isize;
pub extern "c" fn readv(fd: c_int, iov: [*]const iovec, iovcnt: c_uint) isize;
pub extern "c" fn pread(fd: fd_t, buf: [*]u8, nbyte: usize, offset: off_t) isize;
@ -10699,7 +10704,7 @@ pub const recvmsg = switch (native_os) {
else => private.recvmsg,
};
pub extern "c" fn kill(pid: pid_t, sig: c_int) c_int;
pub extern "c" fn kill(pid: pid_t, sig: SIG) c_int;
pub extern "c" fn setuid(uid: uid_t) c_int;
pub extern "c" fn setgid(gid: gid_t) c_int;
@ -10763,7 +10768,7 @@ pub const pthread_setname_np = switch (native_os) {
};
pub extern "c" fn pthread_getname_np(thread: pthread_t, name: [*:0]u8, len: usize) c_int;
pub extern "c" fn pthread_kill(pthread_t, signal: c_int) c_int;
pub extern "c" fn pthread_kill(pthread_t, signal: SIG) c_int;
pub const pthread_threadid_np = switch (native_os) {
.macos, .ios, .tvos, .watchos, .visionos => private.pthread_threadid_np,
@ -11356,12 +11361,12 @@ const private = struct {
extern "c" fn recvmsg(sockfd: fd_t, msg: *msghdr, flags: u32) isize;
extern "c" fn sched_yield() c_int;
extern "c" fn sendfile(out_fd: fd_t, in_fd: fd_t, offset: ?*off_t, count: usize) isize;
extern "c" fn sigaction(sig: c_int, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) c_int;
extern "c" fn sigdelset(set: ?*sigset_t, signo: c_int) c_int;
extern "c" fn sigaddset(set: ?*sigset_t, signo: c_int) c_int;
extern "c" fn sigaction(sig: SIG, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) c_int;
extern "c" fn sigdelset(set: ?*sigset_t, signo: SIG) c_int;
extern "c" fn sigaddset(set: ?*sigset_t, signo: SIG) c_int;
extern "c" fn sigfillset(set: ?*sigset_t) c_int;
extern "c" fn sigemptyset(set: ?*sigset_t) c_int;
extern "c" fn sigismember(set: ?*const sigset_t, signo: c_int) c_int;
extern "c" fn sigismember(set: ?*const sigset_t, signo: SIG) c_int;
extern "c" fn sigprocmask(how: c_int, noalias set: ?*const sigset_t, noalias oset: ?*sigset_t) c_int;
extern "c" fn socket(domain: c_uint, sock_type: c_uint, protocol: c_uint) c_int;
extern "c" fn socketpair(domain: c_uint, sock_type: c_uint, protocol: c_uint, sv: *[2]fd_t) c_int;
@ -11413,7 +11418,7 @@ const private = struct {
extern "c" fn __libc_thr_yield() c_int;
extern "c" fn __msync13(addr: *align(page_size) const anyopaque, len: usize, flags: c_int) c_int;
extern "c" fn __nanosleep50(rqtp: *const timespec, rmtp: ?*timespec) c_int;
extern "c" fn __sigaction14(sig: c_int, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) c_int;
extern "c" fn __sigaction14(sig: SIG, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) c_int;
extern "c" fn __sigemptyset14(set: ?*sigset_t) c_int;
extern "c" fn __sigfillset14(set: ?*sigset_t) c_int;
extern "c" fn __sigprocmask14(how: c_int, noalias set: ?*const sigset_t, noalias oset: ?*sigset_t) c_int;

20
lib/std/debug.zig
View file

@ -1409,10 +1409,10 @@ pub fn maybeEnableSegfaultHandler() void {
var windows_segfault_handle: ?windows.HANDLE = null;
pub fn updateSegfaultHandler(act: ?*const posix.Sigaction) void {
posix.sigaction(posix.SIG.SEGV, act, null);
posix.sigaction(posix.SIG.ILL, act, null);
posix.sigaction(posix.SIG.BUS, act, null);
posix.sigaction(posix.SIG.FPE, act, null);
posix.sigaction(.SEGV, act, null);
posix.sigaction(.ILL, act, null);
posix.sigaction(.BUS, act, null);
posix.sigaction(.FPE, act, null);
}
/// Attaches a global handler for several signals which, when triggered, prints output to stderr
@ -1457,7 +1457,7 @@ fn resetSegfaultHandler() void {
updateSegfaultHandler(&act);
}
fn handleSegfaultPosix(sig: i32, info: *const posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) noreturn {
fn handleSegfaultPosix(sig: posix.SIG, info: *const posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) noreturn {
if (use_trap_panic) @trap();
const addr: ?usize, const name: []const u8 = info: {
if (native_os == .linux and native_arch == .x86_64) {
@ -1469,7 +1469,7 @@ fn handleSegfaultPosix(sig: i32, info: *const posix.siginfo_t, ctx_ptr: ?*anyopa
// for example when reading/writing model-specific registers
// by executing `rdmsr` or `wrmsr` in user-space (unprivileged mode).
const SI_KERNEL = 0x80;
if (sig == posix.SIG.SEGV and info.code == SI_KERNEL) {
if (sig == .SEGV and info.code == SI_KERNEL) {
break :info .{ null, "General protection exception" };
}
}
@ -1496,10 +1496,10 @@ fn handleSegfaultPosix(sig: i32, info: *const posix.siginfo_t, ctx_ptr: ?*anyopa
else => comptime unreachable,
};
const name = switch (sig) {
posix.SIG.SEGV => "Segmentation fault",
posix.SIG.ILL => "Illegal instruction",
posix.SIG.BUS => "Bus error",
posix.SIG.FPE => "Arithmetic exception",
.SEGV => "Segmentation fault",
.ILL => "Illegal instruction",
.BUS => "Bus error",
.FPE => "Arithmetic exception",
else => unreachable,
};
break :info .{ addr, name };

45
lib/std/os/emscripten.zig
View file

@ -479,50 +479,7 @@ pub const SHUT = struct {
pub const RDWR = 2;
};
pub const SIG = struct {
pub const BLOCK = 0;
pub const UNBLOCK = 1;
pub const SETMASK = 2;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const BUS = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const USR1 = 10;
pub const SEGV = 11;
pub const USR2 = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const STKFLT = 16;
pub const CHLD = 17;
pub const CONT = 18;
pub const STOP = 19;
pub const TSTP = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const URG = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const IO = 29;
pub const POLL = 29;
pub const PWR = 30;
pub const SYS = 31;
pub const UNUSED = SIG.SYS;
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(std.math.maxInt(usize));
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
};
pub const SIG = linux.SIG;
pub const Sigaction = extern struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;

276
lib/std/os/linux.zig
View file

@ -622,7 +622,7 @@ pub fn fork() usize {
} else if (@hasField(SYS, "fork")) {
return syscall0(.fork);
} else {
return syscall2(.clone, SIG.CHLD, 0);
return syscall2(.clone, @intFromEnum(SIG.CHLD), 0);
}
}
@ -1532,16 +1532,16 @@ pub fn getrandom(buf: [*]u8, count: usize, flags: u32) usize {
return syscall3(.getrandom, @intFromPtr(buf), count, flags);
}
pub fn kill(pid: pid_t, sig: i32) usize {
return syscall2(.kill, @as(usize, @bitCast(@as(isize, pid))), @as(usize, @bitCast(@as(isize, sig))));
pub fn kill(pid: pid_t, sig: SIG) usize {
return syscall2(.kill, @as(usize, @bitCast(@as(isize, pid))), @intFromEnum(sig));
}
pub fn tkill(tid: pid_t, sig: i32) usize {
return syscall2(.tkill, @as(usize, @bitCast(@as(isize, tid))), @as(usize, @bitCast(@as(isize, sig))));
pub fn tkill(tid: pid_t, sig: SIG) usize {
return syscall2(.tkill, @as(usize, @bitCast(@as(isize, tid))), @intFromEnum(sig));
}
pub fn tgkill(tgid: pid_t, tid: pid_t, sig: i32) usize {
return syscall3(.tgkill, @as(usize, @bitCast(@as(isize, tgid))), @as(usize, @bitCast(@as(isize, tid))), @as(usize, @bitCast(@as(isize, sig))));
pub fn tgkill(tgid: pid_t, tid: pid_t, sig: SIG) usize {
return syscall3(.tgkill, @as(usize, @bitCast(@as(isize, tgid))), @as(usize, @bitCast(@as(isize, tid))), @intFromEnum(sig));
}
pub fn link(oldpath: [*:0]const u8, newpath: [*:0]const u8) usize {
@ -1923,11 +1923,11 @@ pub fn sigprocmask(flags: u32, noalias set: ?*const sigset_t, noalias oldset: ?*
return syscall4(.rt_sigprocmask, flags, @intFromPtr(set), @intFromPtr(oldset), NSIG / 8);
}
pub fn sigaction(sig: u8, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) usize {
assert(sig > 0);
assert(sig < NSIG);
assert(sig != SIG.KILL);
assert(sig != SIG.STOP);
pub fn sigaction(sig: SIG, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) usize {
assert(@intFromEnum(sig) > 0);
assert(@intFromEnum(sig) < NSIG);
assert(sig != .KILL);
assert(sig != .STOP);
var ksa: k_sigaction = undefined;
var oldksa: k_sigaction = undefined;
@ -1958,8 +1958,8 @@ pub fn sigaction(sig: u8, noalias act: ?*const Sigaction, noalias oact: ?*Sigact
const result = switch (native_arch) {
// The sparc version of rt_sigaction needs the restorer function to be passed as an argument too.
.sparc, .sparc64 => syscall5(.rt_sigaction, sig, ksa_arg, oldksa_arg, @intFromPtr(ksa.restorer), mask_size),
else => syscall4(.rt_sigaction, sig, ksa_arg, oldksa_arg, mask_size),
.sparc, .sparc64 => syscall5(.rt_sigaction, @intFromEnum(sig), ksa_arg, oldksa_arg, @intFromPtr(ksa.restorer), mask_size),
else => syscall4(.rt_sigaction, @intFromEnum(sig), ksa_arg, oldksa_arg, mask_size),
};
if (E.init(result) != .SUCCESS) return result;
@ -2009,27 +2009,27 @@ pub fn sigfillset() sigset_t {
return [_]SigsetElement{~@as(SigsetElement, 0)} ** sigset_len;
}
fn sigset_bit_index(sig: usize) struct { word: usize, mask: SigsetElement } {
assert(sig > 0);
assert(sig < NSIG);
const bit = sig - 1;
fn sigset_bit_index(sig: SIG) struct { word: usize, mask: SigsetElement } {
assert(@intFromEnum(sig) > 0);
assert(@intFromEnum(sig) < NSIG);
const bit = @intFromEnum(sig) - 1;
return .{
.word = bit / @bitSizeOf(SigsetElement),
.mask = @as(SigsetElement, 1) << @truncate(bit % @bitSizeOf(SigsetElement)),
};
}
pub fn sigaddset(set: *sigset_t, sig: usize) void {
pub fn sigaddset(set: *sigset_t, sig: SIG) void {
const index = sigset_bit_index(sig);
(set.*)[index.word] |= index.mask;
}
pub fn sigdelset(set: *sigset_t, sig: usize) void {
pub fn sigdelset(set: *sigset_t, sig: SIG) void {
const index = sigset_bit_index(sig);
(set.*)[index.word] ^= index.mask;
}
pub fn sigismember(set: *const sigset_t, sig: usize) bool {
pub fn sigismember(set: *const sigset_t, sig: SIG) bool {
const index = sigset_bit_index(sig);
return ((set.*)[index.word] & index.mask) != 0;
}
@ -2635,11 +2635,11 @@ pub fn pidfd_getfd(pidfd: fd_t, targetfd: fd_t, flags: u32) usize {
);
}
pub fn pidfd_send_signal(pidfd: fd_t, sig: i32, info: ?*siginfo_t, flags: u32) usize {
pub fn pidfd_send_signal(pidfd: fd_t, sig: SIG, info: ?*siginfo_t, flags: u32) usize {
return syscall4(
.pidfd_send_signal,
@as(usize, @bitCast(@as(isize, pidfd))),
@as(usize, @bitCast(@as(isize, sig))),
@intFromEnum(sig),
@intFromPtr(info),
flags,
);
@ -3736,136 +3736,138 @@ pub const SA = if (is_mips) struct {
pub const RESTORER = 0x04000000;
};
pub const SIG = if (is_mips) struct {
pub const SIG = if (is_mips) enum(u32) {
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 3;
// https://github.com/torvalds/linux/blob/ca91b9500108d4cf083a635c2e11c884d5dd20ea/arch/mips/include/uapi/asm/signal.h#L25
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const USR1 = 16;
pub const USR2 = 17;
pub const CHLD = 18;
pub const PWR = 19;
pub const WINCH = 20;
pub const URG = 21;
pub const IO = 22;
pub const POLL = IO;
pub const STOP = 23;
pub const TSTP = 24;
pub const CONT = 25;
pub const TTIN = 26;
pub const TTOU = 27;
pub const VTALRM = 28;
pub const PROF = 29;
pub const XCPU = 30;
pub const XFZ = 31;
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
} else if (is_sparc) struct {
pub const IOT: SIG = .ABRT;
pub const POLL: SIG = .IO;
// /arch/mips/include/uapi/asm/signal.h#L25
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
USR1 = 16,
USR2 = 17,
CHLD = 18,
PWR = 19,
WINCH = 20,
URG = 21,
IO = 22,
STOP = 23,
TSTP = 24,
CONT = 25,
TTIN = 26,
TTOU = 27,
VTALRM = 28,
PROF = 29,
XCPU = 30,
XFZ = 31,
} else if (is_sparc) enum(u32) {
pub const BLOCK = 1;
pub const UNBLOCK = 2;
pub const SETMASK = 4;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const EMT = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const BUS = 10;
pub const SEGV = 11;
pub const SYS = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const URG = 16;
pub const STOP = 17;
pub const TSTP = 18;
pub const CONT = 19;
pub const CHLD = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const POLL = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const LOST = 29;
pub const USR1 = 30;
pub const USR2 = 31;
pub const IOT = ABRT;
pub const CLD = CHLD;
pub const PWR = LOST;
pub const IO = SIG.POLL;
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
} else struct {
pub const IOT: SIG = .ABRT;
pub const CLD: SIG = .CHLD;
pub const PWR: SIG = .LOST;
pub const POLL: SIG = .IO;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
EMT = 7,
FPE = 8,
KILL = 9,
BUS = 10,
SEGV = 11,
SYS = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
URG = 16,
STOP = 17,
TSTP = 18,
CONT = 19,
CHLD = 20,
TTIN = 21,
TTOU = 22,
IO = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
LOST = 29,
USR1 = 30,
USR2 = 31,
} else enum(u32) {
pub const BLOCK = 0;
pub const UNBLOCK = 1;
pub const SETMASK = 2;
pub const HUP = 1;
pub const INT = 2;
pub const QUIT = 3;
pub const ILL = 4;
pub const TRAP = 5;
pub const ABRT = 6;
pub const IOT = ABRT;
pub const BUS = 7;
pub const FPE = 8;
pub const KILL = 9;
pub const USR1 = 10;
pub const SEGV = 11;
pub const USR2 = 12;
pub const PIPE = 13;
pub const ALRM = 14;
pub const TERM = 15;
pub const STKFLT = 16;
pub const CHLD = 17;
pub const CONT = 18;
pub const STOP = 19;
pub const TSTP = 20;
pub const TTIN = 21;
pub const TTOU = 22;
pub const URG = 23;
pub const XCPU = 24;
pub const XFSZ = 25;
pub const VTALRM = 26;
pub const PROF = 27;
pub const WINCH = 28;
pub const IO = 29;
pub const POLL = 29;
pub const PWR = 30;
pub const SYS = 31;
pub const UNUSED = SIG.SYS;
pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
pub const POLL: SIG = .IO;
pub const IOT: SIG = .ABRT;
HUP = 1,
INT = 2,
QUIT = 3,
ILL = 4,
TRAP = 5,
ABRT = 6,
BUS = 7,
FPE = 8,
KILL = 9,
USR1 = 10,
SEGV = 11,
USR2 = 12,
PIPE = 13,
ALRM = 14,
TERM = 15,
STKFLT = 16,
CHLD = 17,
CONT = 18,
STOP = 19,
TSTP = 20,
TTIN = 21,
TTOU = 22,
URG = 23,
XCPU = 24,
XFSZ = 25,
VTALRM = 26,
PROF = 27,
WINCH = 28,
IO = 29,
PWR = 30,
SYS = 31,
};
pub const kernel_rwf = u32;
@ -5786,7 +5788,7 @@ pub const TFD = switch (native_arch) {
};
const k_sigaction_funcs = struct {
const handler = ?*align(1) const fn (i32) callconv(.c) void;
const handler = ?*align(1) const fn (SIG) callconv(.c) void;
const restorer = *const fn () callconv(.c) void;
};
@ -5817,8 +5819,8 @@ pub const k_sigaction = switch (native_arch) {
///
/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
pub const Sigaction = struct {
pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
handler: extern union {
handler: ?handler_fn,
@ -6260,14 +6262,14 @@ const siginfo_fields_union = extern union {
pub const siginfo_t = if (is_mips)
extern struct {
signo: i32,
signo: SIG,
code: i32,
errno: i32,
fields: siginfo_fields_union,
}
else
extern struct {
signo: i32,
signo: SIG,
errno: i32,
code: i32,
fields: siginfo_fields_union,

70
lib/std/os/linux/test.zig
View file

@ -1,5 +1,7 @@
const std = @import("../../std.zig");
const builtin = @import("builtin");
const std = @import("../../std.zig");
const assert = std.debug.assert;
const linux = std.os.linux;
const mem = std.mem;
const elf = std.elf;
@ -128,58 +130,32 @@ test "fadvise" {
}
test "sigset_t" {
std.debug.assert(@sizeOf(linux.sigset_t) == (linux.NSIG / 8));
const SIG = linux.SIG;
assert(@sizeOf(linux.sigset_t) == (linux.NSIG / 8));
var sigset = linux.sigemptyset();
// See that none are set, then set each one, see that they're all set, then
// remove them all, and then see that none are set.
for (1..linux.NSIG) |i| {
try expectEqual(linux.sigismember(&sigset, @truncate(i)), false);
const sig = std.meta.intToEnum(SIG, i) catch continue;
try expectEqual(false, linux.sigismember(&sigset, sig));
}
for (1..linux.NSIG) |i| {
linux.sigaddset(&sigset, @truncate(i));
const sig = std.meta.intToEnum(SIG, i) catch continue;
linux.sigaddset(&sigset, sig);
}
for (1..linux.NSIG) |i| {
try expectEqual(linux.sigismember(&sigset, @truncate(i)), true);
const sig = std.meta.intToEnum(SIG, i) catch continue;
try expectEqual(true, linux.sigismember(&sigset, sig));
}
for (1..linux.NSIG) |i| {
linux.sigdelset(&sigset, @truncate(i));
const sig = std.meta.intToEnum(SIG, i) catch continue;
linux.sigdelset(&sigset, sig);
}
for (1..linux.NSIG) |i| {
try expectEqual(linux.sigismember(&sigset, @truncate(i)), false);
}
// Kernel sigset_t is either 2+ 32-bit values or 1+ 64-bit value(s).
const sigset_len = @typeInfo(linux.sigset_t).array.len;
const sigset_elemis64 = 64 == @bitSizeOf(@typeInfo(linux.sigset_t).array.child);
linux.sigaddset(&sigset, 1);
try expectEqual(sigset[0], 1);
if (sigset_len > 1) {
try expectEqual(sigset[1], 0);
}
linux.sigaddset(&sigset, 31);
try expectEqual(sigset[0], 0x4000_0001);
if (sigset_len > 1) {
try expectEqual(sigset[1], 0);
}
linux.sigaddset(&sigset, 36);
if (sigset_elemis64) {
try expectEqual(sigset[0], 0x8_4000_0001);
} else {
try expectEqual(sigset[0], 0x4000_0001);
try expectEqual(sigset[1], 0x8);
}
linux.sigaddset(&sigset, 64);
if (sigset_elemis64) {
try expectEqual(sigset[0], 0x8000_0008_4000_0001);
} else {
try expectEqual(sigset[0], 0x4000_0001);
try expectEqual(sigset[1], 0x8000_0008);
const sig = std.meta.intToEnum(SIG, i) catch continue;
try expectEqual(false, linux.sigismember(&sigset, sig));
}
}
@ -187,14 +163,16 @@ test "sigfillset" {
// unlike the C library, all the signals are set in the kernel-level fillset
const sigset = linux.sigfillset();
for (1..linux.NSIG) |i| {
try expectEqual(linux.sigismember(&sigset, @truncate(i)), true);
const sig = std.meta.intToEnum(linux.SIG, i) catch continue;
try expectEqual(true, linux.sigismember(&sigset, sig));
}
}
test "sigemptyset" {
const sigset = linux.sigemptyset();
for (1..linux.NSIG) |i| {
try expectEqual(linux.sigismember(&sigset, @truncate(i)), false);
const sig = std.meta.intToEnum(linux.SIG, i) catch continue;
try expectEqual(false, linux.sigismember(&sigset, sig));
}
}
@ -208,14 +186,14 @@ test "sysinfo" {
}
comptime {
std.debug.assert(128 == @as(u32, @bitCast(linux.FUTEX_OP{ .cmd = @enumFromInt(0), .private = true, .realtime = false })));
std.debug.assert(256 == @as(u32, @bitCast(linux.FUTEX_OP{ .cmd = @enumFromInt(0), .private = false, .realtime = true })));
assert(128 == @as(u32, @bitCast(linux.FUTEX_OP{ .cmd = @enumFromInt(0), .private = true, .realtime = false })));
assert(256 == @as(u32, @bitCast(linux.FUTEX_OP{ .cmd = @enumFromInt(0), .private = false, .realtime = true })));
// Check futex_param4 union is packed correctly
const param_union = linux.futex_param4{
.val2 = 0xaabbcc,
};
std.debug.assert(@intFromPtr(param_union.timeout) == 0xaabbcc);
assert(@intFromPtr(param_union.timeout) == 0xaabbcc);
}
test "futex v1" {
@ -298,8 +276,8 @@ test "futex v1" {
}
comptime {
std.debug.assert(2 == @as(u32, @bitCast(linux.FUTEX2_FLAGS{ .size = .U32, .private = false })));
std.debug.assert(128 == @as(u32, @bitCast(linux.FUTEX2_FLAGS{ .size = @enumFromInt(0), .private = true })));
assert(2 == @as(u32, @bitCast(linux.FUTEX2_FLAGS{ .size = .U32, .private = false })));
assert(128 == @as(u32, @bitCast(linux.FUTEX2_FLAGS{ .size = @enumFromInt(0), .private = true })));
}
test "futex2_waitv" {

22
lib/std/posix.zig
View file

@ -708,7 +708,7 @@ pub fn abort() noreturn {
// for user-defined signal handlers that want to restore some state in
// some program sections and crash in others.
// So, the user-installed SIGABRT handler is run, if present.
raise(SIG.ABRT) catch {};
raise(.ABRT) catch {};
// Disable all signal handlers.
const filledset = linux.sigfillset();
@ -728,17 +728,17 @@ pub fn abort() noreturn {
.mask = sigemptyset(),
.flags = 0,
};
sigaction(SIG.ABRT, &sigact, null);
sigaction(.ABRT, &sigact, null);
_ = linux.tkill(linux.gettid(), SIG.ABRT);
_ = linux.tkill(linux.gettid(), .ABRT);
var sigabrtmask = sigemptyset();
sigaddset(&sigabrtmask, SIG.ABRT);
sigaddset(&sigabrtmask, .ABRT);
sigprocmask(SIG.UNBLOCK, &sigabrtmask, null);
// Beyond this point should be unreachable.
@as(*allowzero volatile u8, @ptrFromInt(0)).* = 0;
raise(SIG.KILL) catch {};
raise(.KILL) catch {};
exit(127); // Pid 1 might not be signalled in some containers.
}
switch (native_os) {
@ -749,7 +749,7 @@ pub fn abort() noreturn {
pub const RaiseError = UnexpectedError;
pub fn raise(sig: u8) RaiseError!void {
pub fn raise(sig: SIG) RaiseError!void {
if (builtin.link_libc) {
switch (errno(system.raise(sig))) {
.SUCCESS => return,
@ -777,7 +777,7 @@ pub fn raise(sig: u8) RaiseError!void {
pub const KillError = error{ ProcessNotFound, PermissionDenied } || UnexpectedError;
pub fn kill(pid: pid_t, sig: u8) KillError!void {
pub fn kill(pid: pid_t, sig: SIG) KillError!void {
switch (errno(system.kill(pid, sig))) {
.SUCCESS => return,
.INVAL => unreachable, // invalid signal
@ -5235,7 +5235,7 @@ pub fn sigemptyset() sigset_t {
return system.sigemptyset();
}
pub fn sigaddset(set: *sigset_t, sig: u8) void {
pub fn sigaddset(set: *sigset_t, sig: SIG) void {
if (builtin.link_libc) {
switch (errno(system.sigaddset(set, sig))) {
.SUCCESS => return,
@ -5245,7 +5245,7 @@ pub fn sigaddset(set: *sigset_t, sig: u8) void {
system.sigaddset(set, sig);
}
pub fn sigdelset(set: *sigset_t, sig: u8) void {
pub fn sigdelset(set: *sigset_t, sig: SIG) void {
if (builtin.link_libc) {
switch (errno(system.sigdelset(set, sig))) {
.SUCCESS => return,
@ -5255,7 +5255,7 @@ pub fn sigdelset(set: *sigset_t, sig: u8) void {
system.sigdelset(set, sig);
}
pub fn sigismember(set: *const sigset_t, sig: u8) bool {
pub fn sigismember(set: *const sigset_t, sig: SIG) bool {
if (builtin.link_libc) {
const rc = system.sigismember(set, sig);
switch (errno(rc)) {
@ -5267,7 +5267,7 @@ pub fn sigismember(set: *const sigset_t, sig: u8) bool {
}
/// Examine and change a signal action.
pub fn sigaction(sig: u8, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) void {
pub fn sigaction(sig: SIG, noalias act: ?*const Sigaction, noalias oact: ?*Sigaction) void {
switch (errno(system.sigaction(sig, act, oact))) {
.SUCCESS => return,
// EINVAL means the signal is either invalid or some signal that cannot have its action

22
lib/std/posix/test.zig
View file

@ -536,14 +536,15 @@ test "sigset empty/full" {
var set: posix.sigset_t = posix.sigemptyset();
for (1..posix.NSIG) |i| {
try expectEqual(false, posix.sigismember(&set, @truncate(i)));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
try expectEqual(false, posix.sigismember(&set, sig));
}
// The C library can reserve some (unnamed) signals, so can't check the full
// NSIG set is defined, but just test a couple:
set = posix.sigfillset();
try expectEqual(true, posix.sigismember(&set, @truncate(posix.SIG.CHLD)));
try expectEqual(true, posix.sigismember(&set, @truncate(posix.SIG.INT)));
try expectEqual(true, posix.sigismember(&set, .CHLD));
try expectEqual(true, posix.sigismember(&set, .INT));
}
// Some signals (i.e., 32 - 34 on glibc/musl) are not allowed to be added to a
@ -564,25 +565,30 @@ test "sigset add/del" {
// See that none are set, then set each one, see that they're all set, then
// remove them all, and then see that none are set.
for (1..posix.NSIG) |i| {
try expectEqual(false, posix.sigismember(&sigset, @truncate(i)));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
try expectEqual(false, posix.sigismember(&sigset, sig));
}
for (1..posix.NSIG) |i| {
if (!reserved_signo(i)) {
posix.sigaddset(&sigset, @truncate(i));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
posix.sigaddset(&sigset, sig);
}
}
for (1..posix.NSIG) |i| {
if (!reserved_signo(i)) {
try expectEqual(true, posix.sigismember(&sigset, @truncate(i)));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
try expectEqual(true, posix.sigismember(&sigset, sig));
}
}
for (1..posix.NSIG) |i| {
if (!reserved_signo(i)) {
posix.sigdelset(&sigset, @truncate(i));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
posix.sigdelset(&sigset, sig);
}
}
for (1..posix.NSIG) |i| {
try expectEqual(false, posix.sigismember(&sigset, @truncate(i)));
const sig = std.meta.intToEnum(posix.SIG, i) catch continue;
try expectEqual(false, posix.sigismember(&sigset, sig));
}
}

41
lib/std/start.zig
View file

@ -758,45 +758,24 @@ pub fn call_wWinMain() std.os.windows.INT {
}
fn maybeIgnoreSignals() void {
switch (builtin.os.tag) {
.linux,
.plan9,
.illumos,
.netbsd,
.openbsd,
.haiku,
.macos,
.ios,
.watchos,
.tvos,
.visionos,
.dragonfly,
.freebsd,
.serenity,
=> {},
else => return,
}
const posix = std.posix;
if (posix.Sigaction == void) return;
const act: posix.Sigaction = .{
// Set handler to a noop function instead of `SIG.IGN` to prevent
// Set handler to a noop function instead of `IGN` to prevent
// leaking signal disposition to a child process.
.handler = .{ .handler = noopSigHandler },
.mask = posix.sigemptyset(),
.flags = 0,
};
if (@hasField(posix.SIG, "POLL") and !std.options.keep_sigpoll)
posix.sigaction(posix.SIG.POLL, &act, null);
if (@hasField(posix.SIG, "IO") and !std.options.keep_sig_io)
posix.sigaction(.IO, &act, null);
if (@hasField(posix.SIG, "IO") and
(!@hasField(posix.SIG, "POLL") or posix.SIG.IO != posix.SIG.POLL) and
!std.options.keep_sigio)
{
posix.sigaction(posix.SIG.IO, &act, null);
if (@hasField(posix.SIG, "POLL") and !std.options.keep_sig_poll)
posix.sigaction(.POLL, &act, null);
if (@hasField(posix.SIG, "PIPE") and !std.options.keep_sig_pipe)
posix.sigaction(.PIPE, &act, null);
}
if (@hasField(posix.SIG, "PIPE") and !std.options.keep_sigpipe)
posix.sigaction(posix.SIG.PIPE, &act, null);
}
fn noopSigHandler(_: i32) callconv(.c) void {}
fn noopSigHandler(_: std.posix.SIG) callconv(.c) void {}

6
lib/std/std.zig
View file

@ -144,8 +144,8 @@ pub const Options = struct {
crypto_fork_safety: bool = true,
keep_sigpoll: bool = false,
keep_sigio: bool = false,
keep_sig_poll: bool = false,
keep_sig_io: bool = false,
/// By default Zig disables SIGPIPE by setting a "no-op" handler for it. Set this option
/// to `true` to prevent that.
@ -158,7 +158,7 @@ pub const Options = struct {
/// cases it's unclear why the process was terminated. By capturing SIGPIPE instead, functions that
/// write to broken pipes will return the EPIPE error (error.BrokenPipe) and the program can handle
/// it like any other error.
keep_sigpipe: bool = false,
keep_sig_pipe: bool = false,
/// By default, std.http.Client will support HTTPS connections. Set this option to `true` to
/// disable TLS support.

24
test/standalone/posix/sigaction.zig
View file

@ -17,12 +17,12 @@ fn test_sigaction() !void {
return; // https://github.com/ziglang/zig/issues/15381
}
const test_signo = std.posix.SIG.URG; // URG only because it is ignored by default in debuggers
const test_signo: std.posix.SIG = .URG; // URG only because it is ignored by default in debuggers
const S = struct {
var handler_called_count: u32 = 0;
fn handler(sig: i32, info: *const std.posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
fn handler(sig: std.posix.SIG, info: *const std.posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
_ = ctx_ptr;
// Check that we received the correct signal.
const info_sig = switch (native_os) {
@ -80,20 +80,18 @@ fn test_sigaction() !void {
}
fn test_sigset_bits() !void {
const NO_SIG: i32 = 0;
const S = struct {
var expected_sig: i32 = undefined;
var seen_sig: i32 = NO_SIG;
var expected_sig: std.posix.SIG = undefined;
var seen_sig: ?std.posix.SIG = null;
fn handler(sig: i32, info: *const std.posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
fn handler(sig: std.posix.SIG, info: *const std.posix.siginfo_t, ctx_ptr: ?*anyopaque) callconv(.c) void {
_ = ctx_ptr;
const info_sig = switch (native_os) {
.netbsd => info.info.signo,
else => info.signo,
};
if (seen_sig == NO_SIG and sig == expected_sig and sig == info_sig) {
if (seen_sig == null and sig == expected_sig and sig == info_sig) {
seen_sig = sig;
}
}
@ -107,11 +105,9 @@ fn test_sigset_bits() !void {
// big-endian), try sending a blocked signal to make sure the mask matches the
// signal. (Send URG and CHLD because they're ignored by default in the
// debugger, vs. USR1 or other named signals)
inline for ([_]i32{ std.posix.SIG.URG, std.posix.SIG.CHLD, 62, 94, 126 }) |test_signo| {
if (test_signo >= std.posix.NSIG) continue;
inline for ([_]std.posix.SIG{ .URG, .CHLD }) |test_signo| {
S.expected_sig = test_signo;
S.seen_sig = NO_SIG;
S.seen_sig = null;
const sa: std.posix.Sigaction = .{
.handler = .{ .sigaction = &S.handler },
@ -135,14 +131,14 @@ fn test_sigset_bits() !void {
switch (std.posix.errno(rc)) {
.SUCCESS => {
// See that the signal is blocked, then unblocked
try std.testing.expectEqual(NO_SIG, S.seen_sig);
try std.testing.expectEqual(null, S.seen_sig);
std.posix.sigprocmask(std.posix.SIG.UNBLOCK, &block_one, null);
try std.testing.expectEqual(test_signo, S.seen_sig);
},
.INVAL => {
// Signal won't get delviered. Just clean up.
std.posix.sigprocmask(std.posix.SIG.UNBLOCK, &block_one, null);
try std.testing.expectEqual(NO_SIG, S.seen_sig);
try std.testing.expectEqual(null, S.seen_sig);
},
else => |errno| return std.posix.unexpectedErrno(errno),
}