Merge c9facf0ba3 into f845fa04a0

Closes #21815.

lib/std/debug/MemoryAccessor.zig

@@ -48,7 +48,8 @@ fn read(ma: *MemoryAccessor, address: usize, buf: []u8) bool {
                 switch (linux.E.init(bytes_read)) {
                     .SUCCESS => return bytes_read == buf.len,
                     .FAULT => return false,
-                    .INVAL, .PERM, .SRCH => unreachable, // own pid is always valid
+                    .INVAL, .SRCH => unreachable, // own pid is always valid
+                    .PERM => {}, // Known to happen in containers.
                     .NOMEM => {},
                     .NOSYS => {}, // QEMU is known not to implement this syscall.
                     else => unreachable, // unexpected

lib/std/fs.zig

@@ -507,6 +507,7 @@ pub const SelfExePathError = error{
     DeviceBusy,
     SharingViolation,
     PipeBusy,
+    PipeNotAvailable,
     NotLink,
     PathAlreadyExists,
 

lib/std/fs/File.zig

@@ -39,6 +39,7 @@ pub const OpenError = error{
     FileNotFound,
     AccessDenied,
     PipeBusy,
+    PipeNotAvailable,
     NameTooLong,
     /// WASI-only; file paths must be valid UTF-8.
     InvalidUtf8,

lib/std/os/windows.zig

@@ -37,6 +37,7 @@ pub const OpenError = error{
     NoDevice,
     AccessDenied,
     PipeBusy,
+    PipeNotAvailable,
     PathAlreadyExists,
     Unexpected,
     NameTooLong,
@@ -132,6 +133,7 @@ pub fn OpenFile(sub_path_w: []const u16, options: OpenFileOptions) OpenError!HAN
             .SHARING_VIOLATION => return error.AccessDenied,
             .ACCESS_DENIED => return error.AccessDenied,
             .PIPE_BUSY => return error.PipeBusy,
+            .PIPE_NOT_AVAILABLE => return error.PipeNotAvailable,
             .OBJECT_PATH_SYNTAX_BAD => unreachable,
             .OBJECT_NAME_COLLISION => return error.PathAlreadyExists,
             .FILE_IS_A_DIRECTORY => return error.IsDir,
@@ -801,6 +803,7 @@ pub fn CreateSymbolicLink(
         error.NotDir => return error.Unexpected,
         error.WouldBlock => return error.Unexpected,
         error.PipeBusy => return error.Unexpected,
+        error.PipeNotAvailable => return error.Unexpected,
         error.AntivirusInterference => return error.Unexpected,
         else => |e| return e,
     };
@@ -1335,6 +1338,7 @@ pub fn GetFinalPathNameByHandle(
                 error.NoDevice => return error.Unexpected,
                 error.AccessDenied => return error.Unexpected,
                 error.PipeBusy => return error.Unexpected,
+                error.PipeNotAvailable => return error.Unexpected,
                 error.PathAlreadyExists => return error.Unexpected,
                 error.WouldBlock => return error.Unexpected,
                 error.NetworkNotFound => return error.Unexpected,

lib/std/posix.zig

@@ -2574,6 +2574,7 @@ pub const RenameError = error{
     NoDevice,
     SharingViolation,
     PipeBusy,
+    PipeNotAvailable,
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
     /// On Windows, antivirus software is enabled by default. It can be
@@ -2945,6 +2946,7 @@ pub fn mkdiratW(dir_fd: fd_t, sub_path_w: []const u16, mode: u32) MakeDirError!v
     }) catch |err| switch (err) {
         error.IsDir => return error.Unexpected,
         error.PipeBusy => return error.Unexpected,
+        error.PipeNotAvailable => return error.Unexpected,
         error.WouldBlock => return error.Unexpected,
         error.AntivirusInterference => return error.Unexpected,
         else => |e| return e,
@@ -3039,6 +3041,7 @@ pub fn mkdirW(dir_path_w: []const u16, mode: u32) MakeDirError!void {
     }) catch |err| switch (err) {
         error.IsDir => return error.Unexpected,
         error.PipeBusy => return error.Unexpected,
+        error.PipeNotAvailable => return error.Unexpected,
         error.WouldBlock => return error.Unexpected,
         error.AntivirusInterference => return error.Unexpected,
         else => |e| return e,
@@ -5368,6 +5371,7 @@ pub const RealPathError = error{
 
     SharingViolation,
     PipeBusy,
+    PipeNotAvailable,
 
     /// Windows-only; file paths provided by the user must be valid WTF-8.
     /// https://simonsapin.github.io/wtf-8/

lib/std/process/Child.zig

@@ -746,6 +746,7 @@ fn spawnWindows(self: *ChildProcess) SpawnError!void {
         }) catch |err| switch (err) {
             error.PathAlreadyExists => return error.Unexpected, // not possible for "NUL"
             error.PipeBusy => return error.Unexpected, // not possible for "NUL"
+            error.PipeNotAvailable => return error.Unexpected, // not possible for "NUL"
             error.FileNotFound => return error.Unexpected, // not possible for "NUL"
             error.AccessDenied => return error.Unexpected, // not possible for "NUL"
             error.NameTooLong => return error.Unexpected, // not possible for "NUL"

lib/std/zig/system.zig

@@ -805,6 +805,7 @@ fn glibcVerFromRPath(rpath: []const u8) !std.SemanticVersion {
         error.InvalidWtf8 => unreachable, // Windows only
         error.BadPathName => unreachable, // Windows only
         error.PipeBusy => unreachable, // Windows-only
+        error.PipeNotAvailable => unreachable, // Windows-only
         error.SharingViolation => unreachable, // Windows-only
         error.NetworkNotFound => unreachable, // Windows-only
         error.AntivirusInterference => unreachable, // Windows-only
@@ -1068,6 +1069,7 @@ fn detectAbiAndDynamicLinker(
                 error.InvalidWtf8 => unreachable, // Windows only
                 error.BadPathName => unreachable,
                 error.PipeBusy => unreachable,
+                error.PipeNotAvailable => unreachable,
                 error.FileLocksNotSupported => unreachable,
                 error.WouldBlock => unreachable,
                 error.FileBusy => unreachable, // opened without write permissions

src/Builtin.zig

@@ -250,6 +250,7 @@ pub fn populateFile(comp: *Compilation, mod: *Module, file: *File) !void {
         error.BadPathName => unreachable, // it's always "builtin.zig"
         error.NameTooLong => unreachable, // it's always "builtin.zig"
         error.PipeBusy => unreachable, // it's not a pipe
+        error.PipeNotAvailable => unreachable, // it's not a pipe
         error.WouldBlock => unreachable, // not asking for non-blocking I/O
 
         error.FileNotFound => try writeFile(file, mod),

src/Zcu/PerThread.zig

@@ -133,6 +133,7 @@ pub fn astGenFile(
             error.BadPathName => unreachable, // it's a hex encoded name
             error.NameTooLong => unreachable, // it's a fixed size name
             error.PipeBusy => unreachable, // it's not a pipe
+            error.PipeNotAvailable => unreachable, // it's not a pipe
             error.WouldBlock => unreachable, // not asking for non-blocking I/O
             // There are no dir components, so you would think that this was
             // unreachable, however we have observed on macOS two processes racing