Commit a7769e25be

Qun He <hawkbee@gmail.com>
2025-08-25 03:38:44
os.linux: faccessat wrapper prefer to faccessat syscall when flags is zero.
This make `fs.Dir.access` has compatibility like the zig version before. With this change the `zig build --search-prefix` command would work again like the zig 0.14 version when used on Ubuntu22.04, kernel version 5.4.
master
1 parent 5a0cf21
Changed files (1)
lib
std
os
linux.zig
lib/std/os/linux.zig
@@ -1238,11 +1238,14 @@ pub fn access(path: [*:0]const u8, mode: u32) usize {
     if (@hasField(SYS, "access")) {
         return syscall2(.access, @intFromPtr(path), mode);
     } else {
-        return syscall4(.faccessat, @as(usize, @bitCast(@as(isize, AT.FDCWD))), @intFromPtr(path), mode, 0);
+        return faccessat(AT.FDCWD, path, mode, 0);
     }
 }
 
 pub fn faccessat(dirfd: i32, path: [*:0]const u8, mode: u32, flags: u32) usize {
+    if (flags == 0) {
+        return syscall3(.faccessat, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), mode);
+    }
     return syscall4(.faccessat2, @as(usize, @bitCast(@as(isize, dirfd))), @intFromPtr(path), mode, flags);
 }