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Merge pull request #18570 from gh-fork-dump/linux-6.7
Linux: Update syscall bits for 6.7
This commit is contained in:
Andrew Kelley
GitHub
commit
88ee323cd7
@ -323,6 +323,113 @@ pub fn futex_wake(uaddr: *const i32, futex_op: u32, val: i32) usize {
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return syscall3(.futex, @intFromPtr(uaddr), futex_op, @as(u32, @bitCast(val)));
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}
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/// Given an array of `futex_waitv`, wait on each uaddr.
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/// The thread wakes if a futex_wake() is performed at any uaddr.
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/// The syscall returns immediately if any waiter has *uaddr != val.
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/// timeout is an optional timeout value for the operation.
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/// Each waiter has individual flags.
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/// The `flags` argument for the syscall should be used solely for specifying
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/// the timeout as realtime, if needed.
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/// Flags for private futexes, sizes, etc. should be used on the
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/// individual flags of each waiter.
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///
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/// Returns the array index of one of the woken futexes.
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/// No further information is provided: any number of other futexes may also
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/// have been woken by the same event, and if more than one futex was woken,
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/// the retrned index may refer to any one of them.
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/// (It is not necessaryily the futex with the smallest index, nor the one
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/// most recently woken, nor...)
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pub fn futex2_waitv(
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/// List of futexes to wait on.
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waiters: [*]futex_waitv,
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/// Length of `waiters`.
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nr_futexes: u32,
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/// Flag for timeout (monotonic/realtime).
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flags: u32,
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/// Optional absolute timeout.
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timeout: ?*const timespec,
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/// Clock to be used for the timeout, realtime or monotonic.
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clockid: i32,
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) usize {
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return syscall6(
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.futex_waitv,
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@intFromPtr(waiters),
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nr_futexes,
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flags,
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@intFromPtr(timeout),
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@bitCast(@as(isize, clockid)),
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);
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}
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/// Wait on a futex.
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/// Identical to `FUTEX.WAIT`, except it is part of the futex2 family of calls.
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pub fn futex2_wait(
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/// Address of the futex to wait on.
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uaddr: *const anyopaque,
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/// Value of `uaddr`.
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val: usize,
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/// Bitmask.
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mask: usize,
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/// `FUTEX2` flags.
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flags: u32,
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/// Optional absolute timeout.
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timeout: *const timespec,
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/// Clock to be used for the timeout, realtime or monotonic.
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clockid: i32,
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) usize {
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return syscall6(
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.futex_wait,
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@intFromPtr(uaddr),
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val,
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mask,
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flags,
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@intFromPtr(timeout),
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@bitCast(@as(isize, clockid)),
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);
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}
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/// Wake a number of futexes.
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/// Identical to `FUTEX.WAKE`, except it is part of the futex2 family of calls.
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pub fn futex2_wake(
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/// Address of the futex(es) to wake.
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uaddr: [*]const anyopaque,
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/// Bitmask
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mask: usize,
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/// Number of the futexes to wake.
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nr: i32,
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/// `FUTEX2` flags.
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flags: u32,
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) usize {
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return syscall4(
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.futex_wake,
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@intFromPtr(uaddr),
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mask,
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@bitCast(@as(isize, nr)),
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flags,
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);
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}
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/// Requeue a waiter from one futex to another.
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/// Identical to `FUTEX.CMP_REQUEUE`, except it is part of the futex2 family of calls.
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pub fn futex2_requeue(
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/// Array describing the source and destination futex.
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waiters: [*]futex_waitv,
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/// Unsed.
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flags: u32,
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/// Number of futexes to wake.
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nr_wake: i32,
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/// Number of futexes to requeue.
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nr_requeue: i32,
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) usize {
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return syscall4(
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.futex_requeue,
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@intFromPtr(waiters),
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flags,
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@bitCast(@as(isize, nr_wake)),
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@bitCast(@as(isize, nr_requeue)),
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);
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}
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pub fn getcwd(buf: [*]u8, size: usize) usize {
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return syscall2(.getcwd, @intFromPtr(buf), size);
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}
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@ -1901,10 +2008,17 @@ pub fn ptrace(
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);
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}
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/// Query the page cache statistics of a file.
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pub fn cachestat(
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/// The open file descriptor to retrieve statistics from.
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fd: fd_t,
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/// The byte range in `fd` to query.
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/// When `len > 0`, the range is `[off..off + len]`.
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/// When `len` == 0, the range is from `off` to the end of `fd`.
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cstat_range: *const cache_stat_range,
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/// The structure where page cache statistics are stored.
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cstat: *cache_stat,
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/// Currently unused, and must be set to `0`.
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flags: u32,
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) usize {
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return syscall4(
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@ -1916,6 +2030,10 @@ pub fn cachestat(
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);
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}
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pub fn map_shadow_stack(addr: u64, size: u64, flags: u32) usize {
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return syscall3(.map_shadow_stack, addr, size, flags);
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}
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pub const E = switch (native_arch) {
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.mips, .mipsel => @import("linux/errno/mips.zig").E,
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.sparc, .sparcel, .sparc64 => @import("linux/errno/sparc.zig").E,
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@ -2016,6 +2134,19 @@ pub const FUTEX = struct {
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pub const PRIVATE_FLAG = 128;
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pub const CLOCK_REALTIME = 256;
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/// Max numbers of elements in a `futex_waitv` array.
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pub const WAITV_MAX = 128;
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};
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pub const FUTEX2 = struct {
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pub const SIZE_U8 = 0x00;
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pub const SIZE_U16 = 0x01;
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pub const SIZE_U32 = 0x02;
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pub const SIZE_U64 = 0x03;
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pub const NUMA = 0x04;
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pub const PRIVATE = FUTEX.PRIVATE_FLAG;
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};
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pub const PROT = struct {
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@ -6100,15 +6231,41 @@ pub const PTRACE = struct {
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pub const GET_SYSCALL_INFO = 0x420e;
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};
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/// A waiter for vectorized wait.
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pub const futex_waitv = extern struct {
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// Expected value at uaddr
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val: u64,
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/// User address to wait on.
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uaddr: u64,
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/// Flags for this waiter.
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flags: u32,
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/// Reserved memeber to preserve alignment.
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/// Should be 0.
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__reserved: u32,
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};
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pub const cache_stat_range = extern struct {
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off: u64,
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len: u64,
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};
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pub const cache_stat = extern struct {
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/// Number of cached pages.
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cache: u64,
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/// Number of dirty pages.
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dirty: u64,
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/// Number of pages marked for writeback.
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writeback: u64,
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/// Number of pages evicted from the cache.
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evicted: u64,
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/// Number of recently evicted pages.
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/// A page is recently evicted if its last eviction was recent enough that its
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/// reentry to the cache would indicate that it is actively being used by the
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/// system, and that there is memory pressure on the system.
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recently_evicted: u64,
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};
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pub const SHADOW_STACK = struct {
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/// Set up a restore token in the shadow stack.
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pub const SET_TOKEN: u64 = 1 << 0;
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};
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@ -444,6 +444,10 @@ pub const X86 = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const X64 = enum(usize) {
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@ -812,6 +816,9 @@ pub const X64 = enum(usize) {
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const Arm = enum(usize) {
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@ -1222,6 +1229,10 @@ pub const Arm = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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breakpoint = arm_base + 1,
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cacheflush = arm_base + 2,
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@ -1616,6 +1627,10 @@ pub const Sparc64 = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const Mips = enum(usize) {
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@ -2041,6 +2056,10 @@ pub const Mips = enum(usize) {
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set_mempolicy_home_node = Linux + 450,
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cachestat = Linux + 451,
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fchmodat2 = Linux + 452,
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map_shadow_stack = Linux + 453,
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futex_wake = Linux + 454,
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futex_wait = Linux + 455,
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futex_requeue = Linux + 456,
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};
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pub const Mips64 = enum(usize) {
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@ -2402,6 +2421,10 @@ pub const Mips64 = enum(usize) {
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set_mempolicy_home_node = Linux + 450,
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cachestat = Linux + 451,
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fchmodat2 = Linux + 452,
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map_shadow_stack = Linux + 453,
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futex_wake = Linux + 454,
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futex_wait = Linux + 455,
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futex_requeue = Linux + 456,
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};
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pub const PowerPC = enum(usize) {
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@ -2838,6 +2861,10 @@ pub const PowerPC = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const PowerPC64 = enum(usize) {
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@ -3246,6 +3273,10 @@ pub const PowerPC64 = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const Arm64 = enum(usize) {
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@ -3557,6 +3588,10 @@ pub const Arm64 = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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};
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pub const RiscV64 = enum(usize) {
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@ -3869,6 +3904,10 @@ pub const RiscV64 = enum(usize) {
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set_mempolicy_home_node = 450,
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cachestat = 451,
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fchmodat2 = 452,
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map_shadow_stack = 453,
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futex_wake = 454,
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futex_wait = 455,
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futex_requeue = 456,
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riscv_flush_icache = arch_specific_syscall + 15,
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};
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