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Merged
merged 2 commits into from
Feb 19, 2023
Merged

prctl SME flags for gnu arm64. #3116

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971e7c6
prctl SME flags for gnu arm64.
devnexen Feb 11, 2023
b2cd407
prctl SME flags for gnu arm64.
devnexen Feb 11, 2023
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4 changes: 3 additions & 1 deletion libc-test/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3586,8 +3586,10 @@ fn test_linux(target: &str) {
// present in recent kernels only
"PR_SCHED_CORE" | "PR_SCHED_CORE_CREATE" | "PR_SCHED_CORE_GET" | "PR_SCHED_CORE_MAX" | "PR_SCHED_CORE_SCOPE_PROCESS_GROUP" | "PR_SCHED_CORE_SCOPE_THREAD" | "PR_SCHED_CORE_SCOPE_THREAD_GROUP" | "PR_SCHED_CORE_SHARE_FROM" | "PR_SCHED_CORE_SHARE_TO" => true,

// present in recent kernels only
// present in recent kernels only >= 5.13
"PR_PAC_SET_ENABLED_KEYS" | "PR_PAC_GET_ENABLED_KEYS" => true,
// present in recent kernels only >= 5.19
"PR_SME_SET_VL" | "PR_SME_GET_VL" | "PR_SME_VL_LEN_MAX" | "PR_SME_SET_VL_INHERIT" | "PR_SME_SET_VL_ONE_EXEC" => true,

// Added in Linux 5.14
"FUTEX_LOCK_PI2" => true,
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7 changes: 7 additions & 0 deletions src/unix/linux_like/linux/gnu/b64/aarch64/mod.rs
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Expand Up @@ -590,6 +590,13 @@ pub const PR_PAC_APDAKEY: ::c_ulong = 1 << 2;
pub const PR_PAC_APDBKEY: ::c_ulong = 1 << 3;
pub const PR_PAC_APGAKEY: ::c_ulong = 1 << 4;

pub const PR_SME_SET_VL: ::c_int = 63;
pub const PR_SME_GET_VL: ::c_int = 64;
pub const PR_SME_VL_LEN_MAX: ::c_int = 0xffff;

pub const PR_SME_SET_VL_INHERIT: ::c_ulong = 1 << 17;
pub const PR_SME_SET_VL_ONE_EXEC: ::c_ulong = 1 << 18;

// Syscall table
pub const SYS_io_setup: ::c_long = 0;
pub const SYS_io_destroy: ::c_long = 1;
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