authorgravatar for quae@daurnimator.comdaurnimator <quae@daurnimator.com> 2020-11-04 22:30:47+11:00
committergravatar for quae@daurnimator.comdaurnimator <quae@daurnimator.com> 2020-11-04 22:32:57+11:00
logb90fb1e96b2c3edd2fb9e8884e64944692d5dd7f
tree885efcd11a58a11ce2b7fbb9a729d2d37db4d4ba
parent02252f3f078c82375857fb5642167ef0e3a72383
signaturelock-open Commit is signed but in an unrecognized format.

std: add PR enum for the prctl opcode

2 files changed, 84 insertions(+), 2 deletions(-)

lib/std/os.zig+2-2
...@@ -5636,7 +5636,7 @@ pub const PrctlError = error{...@@ -5636,7 +5636,7 @@ pub const PrctlError = error{
5636 PermissionDenied,5636 PermissionDenied,
5637} || UnexpectedError;5637} || UnexpectedError;
56385638
5639pub fn prctl(option: i32, args: anytype) PrctlError!u31 {5639pub fn prctl(option: PR, args: anytype) PrctlError!u31 {
5640 if (@typeInfo(@TypeOf(args)) != .Struct)5640 if (@typeInfo(@TypeOf(args)) != .Struct)
5641 @compileError("Expected tuple or struct argument, found " ++ @typeName(@TypeOf(args)));5641 @compileError("Expected tuple or struct argument, found " ++ @typeName(@TypeOf(args)));
5642 if (args.len > 4)5642 if (args.len > 4)
...@@ -5648,7 +5648,7 @@ pub fn prctl(option: i32, args: anytype) PrctlError!u31 {...@@ -5648,7 +5648,7 @@ pub fn prctl(option: i32, args: anytype) PrctlError!u31 {
5648 inline while (i < args.len) : (i += 1) buf[i] = args[i];5648 inline while (i < args.len) : (i += 1) buf[i] = args[i];
5649 }5649 }
56505650
5651 const rc = system.prctl(option, buf[0], buf[1], buf[2], buf[3]);5651 const rc = system.prctl(@enumToInt(option), buf[0], buf[1], buf[2], buf[3]);
5652 switch (errno(rc)) {5652 switch (errno(rc)) {
5653 0 => return @intCast(u31, rc),5653 0 => return @intCast(u31, rc),
5654 EACCES => return error.AccessDenied,5654 EACCES => return error.AccessDenied,
lib/std/os/bits/linux/prctl.zig+82
...@@ -4,6 +4,88 @@...@@ -4,6 +4,88 @@
4// The MIT license requires this copyright notice to be included in all copies4// The MIT license requires this copyright notice to be included in all copies
5// and substantial portions of the software.5// and substantial portions of the software.
66
7pub const PR = extern enum(i32) {
8 SET_PDEATHSIG = 1,
9 GET_PDEATHSIG = 2,
10
11 GET_DUMPABLE = 3,
12 SET_DUMPABLE = 4,
13
14 GET_UNALIGN = 5,
15 SET_UNALIGN = 6,
16
17 GET_KEEPCAPS = 7,
18 SET_KEEPCAPS = 8,
19
20 GET_FPEMU = 9,
21 SET_FPEMU = 10,
22
23 GET_FPEXC = 11,
24 SET_FPEXC = 12,
25
26 GET_TIMING = 13,
27 SET_TIMING = 14,
28
29 SET_NAME = 15,
30 GET_NAME = 16,
31
32 GET_ENDIAN = 19,
33 SET_ENDIAN = 20,
34
35 GET_SECCOMP = 21,
36 SET_SECCOMP = 22,
37
38 CAPBSET_READ = 23,
39 CAPBSET_DROP = 24,
40
41 GET_TSC = 25,
42 SET_TSC = 26,
43
44 GET_SECUREBITS = 27,
45 SET_SECUREBITS = 28,
46
47 SET_TIMERSLACK = 29,
48 GET_TIMERSLACK = 30,
49
50 TASK_PERF_EVENTS_DISABLE = 31,
51 TASK_PERF_EVENTS_ENABLE = 32,
52
53 MCE_KILL = 33,
54
55 MCE_KILL_GET = 34,
56
57 SET_MM = 35,
58
59 SET_PTRACER = 0x59616d61,
60
61 SET_CHILD_SUBREAPER = 36,
62 GET_CHILD_SUBREAPER = 37,
63
64 SET_NO_NEW_PRIVS = 38,
65 GET_NO_NEW_PRIVS = 39,
66
67 GET_TID_ADDRESS = 40,
68
69 SET_THP_DISABLE = 41,
70 GET_THP_DISABLE = 42,
71
72 MPX_ENABLE_MANAGEMENT = 43,
73 MPX_DISABLE_MANAGEMENT = 44,
74
75 SET_FP_MODE = 45,
76 GET_FP_MODE = 46,
77
78 CAP_AMBIENT = 47,
79
80 SVE_SET_VL = 50,
81 SVE_GET_VL = 51,
82
83 GET_SPECULATION_CTRL = 52,
84 SET_SPECULATION_CTRL = 53,
85
86 _,
87};
88
7pub const PR_SET_PDEATHSIG = 1;89pub const PR_SET_PDEATHSIG = 1;
8pub const PR_GET_PDEATHSIG = 2;90pub const PR_GET_PDEATHSIG = 2;
991