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linux: add new flags for pwritev2/preadv2 #4452

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Merged
merged 1 commit into from
May 13, 2025
Merged

linux: add new flags for pwritev2/preadv2 #4452

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9 changes: 9 additions & 0 deletions libc-test/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4468,6 +4468,15 @@ fn test_linux(target: &str) {
// kernel 6.2 minimum
"TUN_F_USO4" | "TUN_F_USO6" | "IFF_NO_CARRIER" => true,

// kernel 6.9 minimum
"RWF_NOAPPEND" => true,

// kernel 6.11 minimum
"RWF_ATOMIC" => true,

// kernel 6.14 minimum
"RWF_DONTCACHE" => true,

// FIXME(linux): Requires more recent kernel headers
| "IFLA_PARENT_DEV_NAME" // linux v5.13+
| "IFLA_PARENT_DEV_BUS_NAME" // linux v5.13+
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3 changes: 3 additions & 0 deletions libc-test/semver/linux-gnu.txt
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Expand Up @@ -389,8 +389,11 @@ RTM_NEWCACHEREPORT
RTM_NEWSTATS
RUN_LVL
RWF_APPEND
RWF_ATOMIC
RWF_DONTCACHE
RWF_DSYNC
RWF_HIPRI
RWF_NOAPPEND
RWF_NOWAIT
RWF_SYNC
SECURITYFS_MAGIC
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3 changes: 3 additions & 0 deletions libc-test/semver/linux-musl.txt
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Expand Up @@ -32,8 +32,11 @@ PR_SET_VMA
PR_SET_VMA_ANON_NAME
RUN_LVL
RWF_APPEND
RWF_ATOMIC
RWF_DONTCACHE
RWF_DSYNC
RWF_HIPRI
RWF_NOAPPEND
RWF_NOWAIT
RWF_SYNC
USER_PROCESS
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9 changes: 0 additions & 9 deletions src/unix/linux_like/linux/gnu/mod.rs
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Since these are uapi, they can go in linux_like/linux/mod.rs to cover both glibc and musl (and others)

Original file line number Diff line number Diff line change
Expand Up @@ -946,15 +946,6 @@ pub const PTRACE_SYSCALL_INFO_SECCOMP: crate::__u8 = 3;
pub const PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4210;
pub const PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4211;

// linux/fs.h

// Flags for preadv2/pwritev2
pub const RWF_HIPRI: c_int = 0x00000001;
pub const RWF_DSYNC: c_int = 0x00000002;
pub const RWF_SYNC: c_int = 0x00000004;
pub const RWF_NOWAIT: c_int = 0x00000008;
pub const RWF_APPEND: c_int = 0x00000010;

// linux/rtnetlink.h
pub const TCA_PAD: c_ushort = 9;
pub const TCA_DUMP_INVISIBLE: c_ushort = 10;
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12 changes: 12 additions & 0 deletions src/unix/linux_like/linux/mod.rs
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Expand Up @@ -2858,6 +2858,18 @@ pub const IFA_F_NOPREFIXROUTE: u32 = 0x200;
pub const IFA_F_MCAUTOJOIN: u32 = 0x400;
pub const IFA_F_STABLE_PRIVACY: u32 = 0x800;

// linux/fs.h

// Flags for preadv2/pwritev2
pub const RWF_HIPRI: c_int = 0x00000001;
pub const RWF_DSYNC: c_int = 0x00000002;
pub const RWF_SYNC: c_int = 0x00000004;
pub const RWF_NOWAIT: c_int = 0x00000008;
pub const RWF_APPEND: c_int = 0x00000010;
pub const RWF_NOAPPEND: c_int = 0x00000020;
pub const RWF_ATOMIC: c_int = 0x00000040;
pub const RWF_DONTCACHE: c_int = 0x00000080;

// linux/if_link.h
pub const IFLA_UNSPEC: c_ushort = 0;
pub const IFLA_ADDRESS: c_ushort = 1;
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6 changes: 0 additions & 6 deletions src/unix/linux_like/linux/musl/mod.rs
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Expand Up @@ -749,12 +749,6 @@ pub const PTRACE_PEEKSIGINFO: c_int = 0x4209;
pub const PTRACE_GETSIGMASK: c_uint = 0x420a;
pub const PTRACE_SETSIGMASK: c_uint = 0x420b;

pub const RWF_HIPRI: c_int = 0x00000001;
pub const RWF_DSYNC: c_int = 0x00000002;
pub const RWF_SYNC: c_int = 0x00000004;
pub const RWF_NOWAIT: c_int = 0x00000008;
pub const RWF_APPEND: c_int = 0x00000010;

pub const AF_IB: c_int = 27;
pub const AF_MPLS: c_int = 28;
pub const AF_NFC: c_int = 39;
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