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std.os.linux: add have_fstat

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Change-Id: I65901604839d137bb8bbbe369a49e26777364009
This commit is contained in:
Bingwu Zhang 2025-11-22 18:05:14 +08:00
parent 21f9f378f1
commit 8facfbbcad
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GPG key ID: B918086ED8045B91
1 changed files with 8 additions and 12 deletions
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lib/std/os/linux.zig
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@ -2201,10 +2201,12 @@ pub fn accept4(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t, flag
return syscall4(.accept4, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(addr), @intFromPtr(len), flags);
}
// riscv32 and loongarch have made the interesting decision to not implement some of
// the older stat syscalls, including this one.
pub const have_fstat = !(native_arch == .riscv32 or is_loongarch);
pub fn fstat(fd: i32, stat_buf: *Stat) usize {
if (native_arch == .riscv32 or native_arch.isLoongArch()) {
// riscv32 and loongarch have made the interesting decision to not implement some of
// the older stat syscalls, including this one.
if (!have_fstat) {
@compileError("No fstat syscall on this architecture.");
} else if (@hasField(SYS, "fstat64")) {
return syscall2(.fstat64, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(stat_buf));
@ -2214,9 +2216,7 @@ pub fn fstat(fd: i32, stat_buf: *Stat) usize {
}
pub fn stat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (native_arch == .riscv32 or native_arch.isLoongArch()) {
// riscv32 and loongarch have made the interesting decision to not implement some of
// the older stat syscalls, including this one.
if (!have_fstat) {
@compileError("No stat syscall on this architecture.");
} else if (@hasField(SYS, "stat64")) {
return syscall2(.stat64, @intFromPtr(pathname), @intFromPtr(statbuf));
@ -2226,9 +2226,7 @@ pub fn stat(pathname: [*:0]const u8, statbuf: *Stat) usize {
}
pub fn lstat(pathname: [*:0]const u8, statbuf: *Stat) usize {
if (native_arch == .riscv32 or native_arch.isLoongArch()) {
// riscv32 and loongarch have made the interesting decision to not implement some of
// the older stat syscalls, including this one.
if (!have_fstat) {
@compileError("No lstat syscall on this architecture.");
} else if (@hasField(SYS, "lstat64")) {
return syscall2(.lstat64, @intFromPtr(pathname), @intFromPtr(statbuf));
@ -2238,9 +2236,7 @@ pub fn lstat(pathname: [*:0]const u8, statbuf: *Stat) usize {
}
pub fn fstatat(dirfd: i32, path: [*:0]const u8, stat_buf: *Stat, flags: u32) usize {
if (native_arch == .riscv32 or native_arch.isLoongArch()) {
// riscv32 and loongarch have made the interesting decision to not implement some of
// the older stat syscalls, including this one.
if (!have_fstat) {
@compileError("No fstatat syscall on this architecture.");
} else if (@hasField(SYS, "fstatat64")) {
return syscall4(.fstatat64, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), @intFromPtr(stat_buf), flags);