authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2022-12-10 23:36:36+01:00
committergravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2022-12-10 23:36:36+01:00
log35e3069ab7af0a5fd65c5fe8e35b01458dbcb132
tree95b3efb3d74726be1da81f11fbf4dbecb35952fa
parentc9d763502fb1ff9ee76f0745c493e65c1333b1b1

darwin: expose ptrace with errno handling

2 files changed, 29 insertions(+), 0 deletions(-)

lib/std/os.zig+1
...@@ -42,6 +42,7 @@ pub const uefi = @import("os/uefi.zig");...@@ -42,6 +42,7 @@ pub const uefi = @import("os/uefi.zig");
42pub const wasi = @import("os/wasi.zig");42pub const wasi = @import("os/wasi.zig");
43pub const windows = @import("os/windows.zig");43pub const windows = @import("os/windows.zig");
44pub const posix_spawn = @import("os/posix_spawn.zig");44pub const posix_spawn = @import("os/posix_spawn.zig");
45pub const ptrace = @import("os/ptrace.zig");
4546
46comptime {47comptime {
47 assert(@import("std") == std); // std lib tests require --zig-lib-dir48 assert(@import("std") == std); // std lib tests require --zig-lib-dir
lib/std/os/ptrace.zig created+28
...@@ -0,0 +1,28 @@
1const std = @import("std");
2const builtin = @import("builtin");
3
4const os = @import("../os.zig");
5const system = os.system;
6const errno = system.getErrno;
7const pid_t = system.pid_t;
8const unexpectedErrno = os.unexpectedErrno;
9const UnexpectedError = os.UnexpectedError;
10
11pub usingnamespace ptrace;
12
13const ptrace = if (builtin.target.isDarwin()) struct {
14 pub const PtraceError = error{
15 ProcessNotFound,
16 PermissionDenied,
17 } || UnexpectedError;
18
19 pub fn ptrace(request: i32, pid: pid_t) PtraceError!void {
20 switch (errno(system.ptrace(request, pid, null, 0))) {
21 .SUCCESS => return,
22 .SRCH => return error.ProcessNotFound,
23 .INVAL => unreachable,
24 .BUSY, .PERM => return error.PermissionDenied,
25 else => |err| return unexpectedErrno(err),
26 }
27 }
28} else struct {};