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Merge pull request #6974 from daurnimator/prctl-cleanup
prctl improvements
This commit is contained in:
Andrew Kelley
GitHub
commit
cf7505da1f
@ -5636,16 +5636,19 @@ pub const PrctlError = error{
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PermissionDenied,
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} || UnexpectedError;
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pub fn prctl(option: i32, args: anytype) PrctlError!u31 {
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pub fn prctl(option: PR, args: anytype) PrctlError!u31 {
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if (@typeInfo(@TypeOf(args)) != .Struct)
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@compileError("Expected tuple or struct argument, found " ++ @typeName(@TypeOf(args)));
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if (args.len > 4)
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@compileError("prctl takes a maximum of 4 optional arguments");
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var buf: [4]usize = undefined;
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inline for (args) |arg, i| buf[i] = arg;
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{
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comptime var i = 0;
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inline while (i < args.len) : (i += 1) buf[i] = args[i];
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}
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const rc = system.prctl(option, buf[0], buf[1], buf[2], buf[3]);
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const rc = system.prctl(@enumToInt(option), buf[0], buf[1], buf[2], buf[3]);
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switch (errno(rc)) {
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0 => return @intCast(u31, rc),
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EACCES => return error.AccessDenied,
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@ -4,27 +4,109 @@
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// The MIT license requires this copyright notice to be included in all copies
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// and substantial portions of the software.
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pub const PR_SET_PDEATHSIG = 1;
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pub const PR_GET_PDEATHSIG = 2;
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pub const PR = extern enum(i32) {
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SET_PDEATHSIG = 1,
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GET_PDEATHSIG = 2,
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pub const PR_GET_DUMPABLE = 3;
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pub const PR_SET_DUMPABLE = 4;
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GET_DUMPABLE = 3,
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SET_DUMPABLE = 4,
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pub const PR_GET_UNALIGN = 5;
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pub const PR_SET_UNALIGN = 6;
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GET_UNALIGN = 5,
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SET_UNALIGN = 6,
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GET_KEEPCAPS = 7,
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SET_KEEPCAPS = 8,
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GET_FPEMU = 9,
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SET_FPEMU = 10,
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GET_FPEXC = 11,
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SET_FPEXC = 12,
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GET_TIMING = 13,
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SET_TIMING = 14,
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SET_NAME = 15,
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GET_NAME = 16,
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GET_ENDIAN = 19,
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SET_ENDIAN = 20,
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GET_SECCOMP = 21,
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SET_SECCOMP = 22,
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CAPBSET_READ = 23,
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CAPBSET_DROP = 24,
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GET_TSC = 25,
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SET_TSC = 26,
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GET_SECUREBITS = 27,
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SET_SECUREBITS = 28,
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SET_TIMERSLACK = 29,
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GET_TIMERSLACK = 30,
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TASK_PERF_EVENTS_DISABLE = 31,
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TASK_PERF_EVENTS_ENABLE = 32,
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MCE_KILL = 33,
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MCE_KILL_GET = 34,
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SET_MM = 35,
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SET_PTRACER = 0x59616d61,
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SET_CHILD_SUBREAPER = 36,
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GET_CHILD_SUBREAPER = 37,
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SET_NO_NEW_PRIVS = 38,
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GET_NO_NEW_PRIVS = 39,
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GET_TID_ADDRESS = 40,
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SET_THP_DISABLE = 41,
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GET_THP_DISABLE = 42,
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MPX_ENABLE_MANAGEMENT = 43,
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MPX_DISABLE_MANAGEMENT = 44,
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SET_FP_MODE = 45,
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GET_FP_MODE = 46,
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CAP_AMBIENT = 47,
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SVE_SET_VL = 50,
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SVE_GET_VL = 51,
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GET_SPECULATION_CTRL = 52,
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SET_SPECULATION_CTRL = 53,
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_,
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};
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pub const PR_SET_PDEATHSIG = @enumToInt(PR.PR_SET_PDEATHSIG);
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pub const PR_GET_PDEATHSIG = @enumToInt(PR.PR_GET_PDEATHSIG);
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pub const PR_GET_DUMPABLE = @enumToInt(PR.PR_GET_DUMPABLE);
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pub const PR_SET_DUMPABLE = @enumToInt(PR.PR_SET_DUMPABLE);
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pub const PR_GET_UNALIGN = @enumToInt(PR.PR_GET_UNALIGN);
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pub const PR_SET_UNALIGN = @enumToInt(PR.PR_SET_UNALIGN);
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pub const PR_UNALIGN_NOPRINT = 1;
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pub const PR_UNALIGN_SIGBUS = 2;
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pub const PR_GET_KEEPCAPS = 7;
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pub const PR_SET_KEEPCAPS = 8;
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pub const PR_GET_KEEPCAPS = @enumToInt(PR.PR_GET_KEEPCAPS);
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pub const PR_SET_KEEPCAPS = @enumToInt(PR.PR_SET_KEEPCAPS);
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pub const PR_GET_FPEMU = 9;
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pub const PR_SET_FPEMU = 10;
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pub const PR_GET_FPEMU = @enumToInt(PR.PR_GET_FPEMU);
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pub const PR_SET_FPEMU = @enumToInt(PR.PR_SET_FPEMU);
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pub const PR_FPEMU_NOPRINT = 1;
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pub const PR_FPEMU_SIGFPE = 2;
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pub const PR_GET_FPEXC = 11;
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pub const PR_SET_FPEXC = 12;
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pub const PR_GET_FPEXC = @enumToInt(PR.PR_GET_FPEXC);
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pub const PR_SET_FPEXC = @enumToInt(PR.PR_SET_FPEXC);
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pub const PR_FP_EXC_SW_ENABLE = 0x80;
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pub const PR_FP_EXC_DIV = 0x010000;
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pub const PR_FP_EXC_OVF = 0x020000;
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@ -36,41 +118,41 @@ pub const PR_FP_EXC_NONRECOV = 1;
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pub const PR_FP_EXC_ASYNC = 2;
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pub const PR_FP_EXC_PRECISE = 3;
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pub const PR_GET_TIMING = 13;
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pub const PR_SET_TIMING = 14;
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pub const PR_GET_TIMING = @enumToInt(PR.PR_GET_TIMING);
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pub const PR_SET_TIMING = @enumToInt(PR.PR_SET_TIMING);
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pub const PR_TIMING_STATISTICAL = 0;
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pub const PR_TIMING_TIMESTAMP = 1;
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pub const PR_SET_NAME = 15;
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pub const PR_GET_NAME = 16;
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pub const PR_SET_NAME = @enumToInt(PR.PR_SET_NAME);
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pub const PR_GET_NAME = @enumToInt(PR.PR_GET_NAME);
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pub const PR_GET_ENDIAN = 19;
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pub const PR_SET_ENDIAN = 20;
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pub const PR_GET_ENDIAN = @enumToInt(PR.PR_GET_ENDIAN);
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pub const PR_SET_ENDIAN = @enumToInt(PR.PR_SET_ENDIAN);
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pub const PR_ENDIAN_BIG = 0;
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pub const PR_ENDIAN_LITTLE = 1;
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pub const PR_ENDIAN_PPC_LITTLE = 2;
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pub const PR_GET_SECCOMP = 21;
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pub const PR_SET_SECCOMP = 22;
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pub const PR_GET_SECCOMP = @enumToInt(PR.PR_GET_SECCOMP);
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pub const PR_SET_SECCOMP = @enumToInt(PR.PR_SET_SECCOMP);
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pub const PR_CAPBSET_READ = 23;
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pub const PR_CAPBSET_DROP = 24;
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pub const PR_CAPBSET_READ = @enumToInt(PR.PR_CAPBSET_READ);
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pub const PR_CAPBSET_DROP = @enumToInt(PR.PR_CAPBSET_DROP);
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pub const PR_GET_TSC = 25;
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pub const PR_SET_TSC = 26;
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pub const PR_GET_TSC = @enumToInt(PR.PR_GET_TSC);
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pub const PR_SET_TSC = @enumToInt(PR.PR_SET_TSC);
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pub const PR_TSC_ENABLE = 1;
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pub const PR_TSC_SIGSEGV = 2;
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pub const PR_GET_SECUREBITS = 27;
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pub const PR_SET_SECUREBITS = 28;
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pub const PR_GET_SECUREBITS = @enumToInt(PR.PR_GET_SECUREBITS);
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pub const PR_SET_SECUREBITS = @enumToInt(PR.PR_SET_SECUREBITS);
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pub const PR_SET_TIMERSLACK = 29;
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pub const PR_GET_TIMERSLACK = 30;
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pub const PR_SET_TIMERSLACK = @enumToInt(PR.PR_SET_TIMERSLACK);
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pub const PR_GET_TIMERSLACK = @enumToInt(PR.PR_GET_TIMERSLACK);
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pub const PR_TASK_PERF_EVENTS_DISABLE = 31;
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pub const PR_TASK_PERF_EVENTS_ENABLE = 32;
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pub const PR_TASK_PERF_EVENTS_DISABLE = @enumToInt(PR.PR_TASK_PERF_EVENTS_DISABLE);
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pub const PR_TASK_PERF_EVENTS_ENABLE = @enumToInt(PR.PR_TASK_PERF_EVENTS_ENABLE);
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pub const PR_MCE_KILL = 33;
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pub const PR_MCE_KILL = @enumToInt(PR.PR_MCE_KILL);
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pub const PR_MCE_KILL_CLEAR = 0;
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pub const PR_MCE_KILL_SET = 1;
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@ -78,9 +160,9 @@ pub const PR_MCE_KILL_LATE = 0;
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pub const PR_MCE_KILL_EARLY = 1;
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pub const PR_MCE_KILL_DEFAULT = 2;
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pub const PR_MCE_KILL_GET = 34;
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pub const PR_MCE_KILL_GET = @enumToInt(PR.PR_MCE_KILL_GET);
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pub const PR_SET_MM = 35;
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pub const PR_SET_MM = @enumToInt(PR.PR_SET_MM);
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pub const PR_SET_MM_START_CODE = 1;
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pub const PR_SET_MM_END_CODE = 2;
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pub const PR_SET_MM_START_DATA = 3;
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@ -114,42 +196,42 @@ pub const prctl_mm_map = extern struct {
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exe_fd: u32,
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};
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pub const PR_SET_PTRACER = 0x59616d61;
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pub const PR_SET_PTRACER = @enumToInt(PR.PR_SET_PTRACER);
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pub const PR_SET_PTRACER_ANY = std.math.maxInt(c_ulong);
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pub const PR_SET_CHILD_SUBREAPER = 36;
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pub const PR_GET_CHILD_SUBREAPER = 37;
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pub const PR_SET_CHILD_SUBREAPER = @enumToInt(PR.PR_SET_CHILD_SUBREAPER);
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pub const PR_GET_CHILD_SUBREAPER = @enumToInt(PR.PR_GET_CHILD_SUBREAPER);
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pub const PR_SET_NO_NEW_PRIVS = 38;
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pub const PR_GET_NO_NEW_PRIVS = 39;
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pub const PR_SET_NO_NEW_PRIVS = @enumToInt(PR.PR_SET_NO_NEW_PRIVS);
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pub const PR_GET_NO_NEW_PRIVS = @enumToInt(PR.PR_GET_NO_NEW_PRIVS);
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pub const PR_GET_TID_ADDRESS = 40;
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pub const PR_GET_TID_ADDRESS = @enumToInt(PR.PR_GET_TID_ADDRESS);
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pub const PR_SET_THP_DISABLE = 41;
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pub const PR_GET_THP_DISABLE = 42;
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pub const PR_SET_THP_DISABLE = @enumToInt(PR.PR_SET_THP_DISABLE);
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pub const PR_GET_THP_DISABLE = @enumToInt(PR.PR_GET_THP_DISABLE);
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pub const PR_MPX_ENABLE_MANAGEMENT = 43;
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pub const PR_MPX_DISABLE_MANAGEMENT = 44;
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pub const PR_MPX_ENABLE_MANAGEMENT = @enumToInt(PR.PR_MPX_ENABLE_MANAGEMENT);
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pub const PR_MPX_DISABLE_MANAGEMENT = @enumToInt(PR.PR_MPX_DISABLE_MANAGEMENT);
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pub const PR_SET_FP_MODE = 45;
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pub const PR_GET_FP_MODE = 46;
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pub const PR_SET_FP_MODE = @enumToInt(PR.PR_SET_FP_MODE);
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pub const PR_GET_FP_MODE = @enumToInt(PR.PR_GET_FP_MODE);
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pub const PR_FP_MODE_FR = 1 << 0;
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pub const PR_FP_MODE_FRE = 1 << 1;
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pub const PR_CAP_AMBIENT = 47;
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pub const PR_CAP_AMBIENT = @enumToInt(PR.PR_CAP_AMBIENT);
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pub const PR_CAP_AMBIENT_IS_SET = 1;
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pub const PR_CAP_AMBIENT_RAISE = 2;
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pub const PR_CAP_AMBIENT_LOWER = 3;
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pub const PR_CAP_AMBIENT_CLEAR_ALL = 4;
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pub const PR_SVE_SET_VL = 50;
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pub const PR_SVE_SET_VL = @enumToInt(PR.PR_SVE_SET_VL);
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pub const PR_SVE_SET_VL_ONEXEC = 1 << 18;
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pub const PR_SVE_GET_VL = 51;
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pub const PR_SVE_GET_VL = @enumToInt(PR.PR_SVE_GET_VL);
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pub const PR_SVE_VL_LEN_MASK = 0xffff;
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pub const PR_SVE_VL_INHERIT = 1 << 17;
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pub const PR_GET_SPECULATION_CTRL = 52;
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pub const PR_SET_SPECULATION_CTRL = 53;
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pub const PR_GET_SPECULATION_CTRL = @enumToInt(PR.PR_GET_SPECULATION_CTRL);
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pub const PR_SET_SPECULATION_CTRL = @enumToInt(PR.PR_SET_SPECULATION_CTRL);
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pub const PR_SPEC_STORE_BYPASS = 0;
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pub const PR_SPEC_NOT_AFFECTED = 0;
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pub const PR_SPEC_PRCTL = 1 << 0;
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