swift-android-foundation-release.patch

diff --git a/swift/stdlib/public/Platform/android.modulemap b/swift/stdlib/public/Platform/android.modulemap
index 78e7bda9976..dc25e5c3668 100644
--- a/swift/stdlib/public/Platform/android.modulemap
+++ b/swift/stdlib/public/Platform/android.modulemap
@@ -556,6 +556,12 @@ module _bits_sa_family_t [system] {
   header "bits/sa_family_t.h"
   export *
 }
+
+module _bits_sockaddr_storage [system] {
+    header "bits/sockaddr_storage.h"
+    export *
+}
+
 module _bits_stdatomic [system] {
   // Note: this module is not part of 'stdatomic'
   // as it depends on libc++ and forcing it to
diff --git a/swift-corelibs-foundation/Package.swift b/swift-corelibs-foundation/Package.swift
--- a/swift-corelibs-foundation/Package.swift
+++ b/swift-corelibs-foundation/Package.swift
@@ -176,7 +176,8 @@
                 "BlockRuntime",
                 "CMakeLists.txt"
             ],
-            cSettings: coreFoundationBuildSettings
+            cSettings: coreFoundationBuildSettings,
+            linkerSettings: [.linkedLibrary("log", .when(platforms: [.android]))]
         ),
         .target(
             name: "_CFXMLInterface",
diff --git a/swift-corelibs-foundation/Sources/CoreFoundation/include/ForSwiftFoundationOnly.h b/swift-corelibs-foundation/Sources/CoreFoundation/include/ForSwiftFoundationOnly.h
index a2ba56cd..91a312dc 100644
--- a/swift-corelibs-foundation/Sources/CoreFoundation/include/ForSwiftFoundationOnly.h
+++ b/swift-corelibs-foundation/Sources/CoreFoundation/include/ForSwiftFoundationOnly.h
@@ -69,6 +69,13 @@
 #include <sys/stat.h>
 #include <sys/syscall.h>
 #include <termios.h>
+#include <linux/fcntl.h>
+#ifdef __swift__
+// The linux/stat header is private in the Android modulemap.
+#pragma clang module import posix_filesystem.linux_stat
+#else
+#include <linux/stat.h>
+#endif
 #elif TARGET_OS_WASI
 #include <fcntl.h>
 #include <sys/stat.h>
diff --git a/swift-corelibs-foundation/Sources/Foundation/CGFloat.swift b/swift-corelibs-foundation/Sources/Foundation/CGFloat.swift
index ffe3a6c6..c59977f8 100644
--- a/swift-corelibs-foundation/Sources/Foundation/CGFloat.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/CGFloat.swift
@@ -7,6 +7,10 @@
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 //
 
+#if canImport(Android)
+import Android
+#endif
+
 @frozen
 public struct CGFloat: Sendable {
 #if arch(i386) || arch(arm) || arch(wasm32)
diff --git a/swift-corelibs-foundation/Sources/Foundation/FileHandle.swift b/swift-corelibs-foundation/Sources/Foundation/FileHandle.swift
index b07c49ac..b540e284 100644
--- a/swift-corelibs-foundation/Sources/Foundation/FileHandle.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/FileHandle.swift
@@ -34,6 +34,11 @@ import WASILibc
 fileprivate let _read = WASILibc.read(_:_:_:)
 fileprivate let _write = WASILibc.write(_:_:_:)
 fileprivate let _close = WASILibc.close(_:)
+#elseif canImport(Android)
+import Android
+fileprivate let _read = Android.read(_:_:_:)
+fileprivate let _write = Android.write(_:_:_:)
+fileprivate let _close = Android.close(_:)
 #endif
 
 #if canImport(WinSDK)
@@ -321,10 +326,15 @@ open class FileHandle : NSObject, @unchecked Sendable {
             if options.contains(.alwaysMapped) {
                 // Filesizes are often 64bit even on 32bit systems
                 let mapSize = min(length, Int(clamping: statbuf.st_size))
+              #if canImport(Android)
+                // Bionic mmap() now returns _Nonnull, so the force unwrap below isn't needed.
                 let data = mmap(nil, mapSize, PROT_READ, MAP_PRIVATE, _fd, 0)
+              #else
+                let data = mmap(nil, mapSize, PROT_READ, MAP_PRIVATE, _fd, 0)!
+              #endif
                 // Swift does not currently expose MAP_FAILURE
                 if data != UnsafeMutableRawPointer(bitPattern: -1) {
-                    return NSData.NSDataReadResult(bytes: data!, length: mapSize) { buffer, length in
+                    return NSData.NSDataReadResult(bytes: data, length: mapSize) { buffer, length in
                         munmap(buffer, length)
                     }
                 }
diff --git a/swift-corelibs-foundation/Sources/Foundation/FileManager+POSIX.swift b/swift-corelibs-foundation/Sources/Foundation/FileManager+POSIX.swift
index e89b3bf6..a82fe1c2 100644
--- a/swift-corelibs-foundation/Sources/Foundation/FileManager+POSIX.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/FileManager+POSIX.swift
@@ -7,6 +7,10 @@
 //
 #if !os(Windows)
 
+#if canImport(Android)
+import Android
+#endif
+
 #if os(Android) && (arch(i386) || arch(arm)) // struct stat.st_mode is UInt32
 internal func &(left: UInt32, right: mode_t) -> mode_t {
     return mode_t(left) & right
@@ -398,13 +402,13 @@ extension FileManager {
 
                 _current = fts_read(stream)
                 while let current = _current {
-                    let filename = FileManager.default.string(withFileSystemRepresentation: current.pointee.fts_path, length: Int(current.pointee.fts_pathlen))
+                    let filename = FileManager.default.string(withFileSystemRepresentation: current.pointee.fts_path!, length: Int(current.pointee.fts_pathlen))
 
                     switch Int32(current.pointee.fts_info) {
                         case FTS_D:
                             let (showFile, skipDescendants) = match(filename: filename, to: _options, isDir: true)
                             if skipDescendants {
-                                fts_set(_stream, _current, FTS_SKIP)
+                                fts_set(stream, current, FTS_SKIP)
                             }
                             if showFile {
                                  return URL(fileURLWithPath: filename, isDirectory: true)
@@ -578,7 +582,7 @@ extension FileManager {
             let finalErrno = originalItemURL.withUnsafeFileSystemRepresentation { (originalFS) -> Int32? in
                 return newItemURL.withUnsafeFileSystemRepresentation { (newItemFS) -> Int32? in
                     // This is an atomic operation in many OSes, but is not guaranteed to be atomic by the standard.
-                    if rename(newItemFS, originalFS) == 0 {
+                    if rename(newItemFS!, originalFS!) == 0 {
                         return nil
                     } else {
                         return errno
diff --git a/swift-corelibs-foundation/Sources/Foundation/FileManager.swift b/swift-corelibs-foundation/Sources/Foundation/FileManager.swift
index a5d75820..a19464d7 100644
--- a/swift-corelibs-foundation/Sources/Foundation/FileManager.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/FileManager.swift
@@ -21,6 +21,8 @@ import WinSDK
 
 #if os(WASI)
 import WASILibc
+#elseif canImport(Bionic)
+import Bionic
 #endif
 
 #if os(Windows)
diff --git a/swift-corelibs-foundation/Sources/Foundation/Host.swift b/swift-corelibs-foundation/Sources/Foundation/Host.swift
index 6c4f5291..fb130631 100644
--- a/swift-corelibs-foundation/Sources/Foundation/Host.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/Host.swift
@@ -12,8 +12,9 @@
 import WinSDK
 #endif
 
-#if os(Android)
-    // Android Glibc differs a little with respect to the Linux Glibc.
+#if canImport(Android)
+    import Android
+    // Android Bionic differs a little with respect to the Linux Glibc.
 
     // IFF_LOOPBACK is part of the enumeration net_device_flags, which needs to
     // convert to UInt32.
@@ -24,8 +25,8 @@ import WinSDK
     }
 
     // getnameinfo uses size_t for its 4th and 6th arguments.
-    private func getnameinfo(_ addr: UnsafePointer<sockaddr>?, _ addrlen: socklen_t, _ host: UnsafeMutablePointer<Int8>?, _ hostlen: socklen_t, _ serv: UnsafeMutablePointer<Int8>?, _ servlen: socklen_t, _ flags: Int32) -> Int32 {
-        return Glibc.getnameinfo(addr, addrlen, host, Int(hostlen), serv, Int(servlen), flags)
+    private func getnameinfo(_ addr: UnsafePointer<sockaddr>, _ addrlen: socklen_t, _ host: UnsafeMutablePointer<Int8>?, _ hostlen: socklen_t, _ serv: UnsafeMutablePointer<Int8>?, _ servlen: socklen_t, _ flags: Int32) -> Int32 {
+        return Android.getnameinfo(addr, addrlen, host, Int(hostlen), serv, Int(servlen), flags)
     }
 
     // getifaddrs and freeifaddrs are not available in Android 6.0 or earlier, so call these functions dynamically.
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSData.swift b/swift-corelibs-foundation/Sources/Foundation/NSData.swift
index ae54f971..65eb0d93 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSData.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSData.swift
@@ -11,6 +11,9 @@
 #if !os(WASI)
 import Dispatch
 #endif
+#if canImport(Android)
+import Android
+#endif
 
 extension NSData {
     public typealias ReadingOptions = Data.ReadingOptions
@@ -469,6 +472,8 @@ open class NSData : NSObject, NSCopying, NSMutableCopying, NSSecureCoding {
             let createMode = Int(Musl.S_IRUSR) | Int(Musl.S_IWUSR) | Int(Musl.S_IRGRP) | Int(Musl.S_IWGRP) | Int(Musl.S_IROTH) | Int(Musl.S_IWOTH)
 #elseif canImport(WASILibc)
             let createMode = Int(WASILibc.S_IRUSR) | Int(WASILibc.S_IWUSR) | Int(WASILibc.S_IRGRP) | Int(WASILibc.S_IWGRP) | Int(WASILibc.S_IROTH) | Int(WASILibc.S_IWOTH)
+#elseif canImport(Android)
+            let createMode = Int(Android.S_IRUSR) | Int(Android.S_IWUSR) | Int(Android.S_IRGRP) | Int(Android.S_IWGRP) | Int(Android.S_IROTH) | Int(Android.S_IWOTH)
 #endif
             guard let fh = FileHandle(path: path, flags: flags, createMode: createMode) else {
                 throw _NSErrorWithErrno(errno, reading: false, path: path)
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSError.swift b/swift-corelibs-foundation/Sources/Foundation/NSError.swift
index 6f21d3a0..dcd6f3f1 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSError.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSError.swift
@@ -16,6 +16,8 @@ import Darwin
 import Glibc
 #elseif canImport(CRT)
 import CRT
+#elseif canImport(Android)
+import Android
 #endif
 
 @_implementationOnly import CoreFoundation
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSLock.swift b/swift-corelibs-foundation/Sources/Foundation/NSLock.swift
index fe1d08b7..9d0fadc9 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSLock.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSLock.swift
@@ -11,6 +11,8 @@
 
 #if canImport(Glibc)
 import Glibc
+#elseif canImport(Bionic)
+import Bionic
 #endif
 
 #if os(Windows)
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSPlatform.swift b/swift-corelibs-foundation/Sources/Foundation/NSPlatform.swift
index a1809026..5424f5bb 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSPlatform.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSPlatform.swift
@@ -10,6 +10,9 @@
 #if os(macOS) || os(iOS)
 fileprivate let _NSPageSize = Int(vm_page_size)
 #elseif os(Linux) || os(Android) || os(OpenBSD)
+#if canImport(Android)
+import Android
+#endif
 fileprivate let _NSPageSize = Int(getpagesize())
 #elseif os(Windows)
 import WinSDK
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSSwiftRuntime.swift b/swift-corelibs-foundation/Sources/Foundation/NSSwiftRuntime.swift
index 03176c17..1509c31d 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSSwiftRuntime.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSSwiftRuntime.swift
@@ -19,6 +19,8 @@ internal import Synchronization
 @_exported import Glibc
 #elseif canImport(Musl)
 @_exported import Musl
+#elseif canImport(Bionic)
+@_exported import Bionic
 #elseif os(WASI)
 @_exported import WASILibc
 #elseif os(Windows)
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSURL.swift b/swift-corelibs-foundation/Sources/Foundation/NSURL.swift
index 6af73f16..9e6f20d0 100644
--- a/swift-corelibs-foundation/Sources/Foundation/NSURL.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSURL.swift
@@ -22,6 +22,8 @@ import Darwin
 import Glibc
 #elseif canImport(Musl)
 import Musl
+#elseif canImport(Bionic)
+import Bionic
 #endif
 
 // NOTE: this represents PLATFORM_PATH_STYLE
diff --git a/swift-corelibs-foundation/Sources/Foundation/Port.swift b/swift-corelibs-foundation/Sources/Foundation/Port.swift
index c4ed8282..e71f591b 100644
--- a/swift-corelibs-foundation/Sources/Foundation/Port.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/Port.swift
@@ -107,7 +107,7 @@ fileprivate let FOUNDATION_SOCK_STREAM = SOCK_STREAM
 fileprivate let FOUNDATION_IPPROTO_TCP = IPPROTO_TCP
 #endif
 
-#if canImport(Glibc) && !os(Android) && !os(OpenBSD)
+#if canImport(Glibc) && !os(OpenBSD)
 import Glibc
 fileprivate let FOUNDATION_SOCK_STREAM = Int32(SOCK_STREAM.rawValue)
 fileprivate let FOUNDATION_IPPROTO_TCP = Int32(IPPROTO_TCP)
@@ -119,14 +119,19 @@ fileprivate let FOUNDATION_SOCK_STREAM = Int32(SOCK_STREAM)
 fileprivate let FOUNDATION_IPPROTO_TCP = Int32(IPPROTO_TCP)
 #endif
 
-#if canImport(Glibc) && os(Android) || os(OpenBSD)
+#if canImport(Glibc) && os(OpenBSD)
 import Glibc
 fileprivate let FOUNDATION_SOCK_STREAM = Int32(SOCK_STREAM)
 fileprivate let FOUNDATION_IPPROTO_TCP = Int32(IPPROTO_TCP)
 fileprivate let INADDR_ANY: in_addr_t = 0
-#if os(OpenBSD)
 fileprivate let INADDR_LOOPBACK = 0x7f000001
 #endif
+
+#if canImport(Android)
+import Android
+fileprivate let FOUNDATION_SOCK_STREAM = Int32(Android.SOCK_STREAM)
+fileprivate let FOUNDATION_IPPROTO_TCP = Int32(Android.IPPROTO_TCP)
+fileprivate let INADDR_ANY: in_addr_t = 0
 #endif
 
 
diff --git a/swift-corelibs-foundation/Sources/Foundation/Process.swift b/swift-corelibs-foundation/Sources/Foundation/Process.swift
index ee35c23a..5e8cfbaa 100644
--- a/swift-corelibs-foundation/Sources/Foundation/Process.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/Process.swift
@@ -18,6 +18,8 @@ import struct WinSDK.HANDLE
 
 #if canImport(Darwin)
 import Darwin
+#elseif canImport(Android)
+import Android
 #endif
 
 internal import Synchronization
diff --git a/swift-corelibs-foundation/Sources/Foundation/Thread.swift b/swift-corelibs-foundation/Sources/Foundation/Thread.swift
index 5e79579c..0985a482 100644
--- a/swift-corelibs-foundation/Sources/Foundation/Thread.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/Thread.swift
@@ -17,6 +17,8 @@ import WinSDK
 import Glibc
 #elseif canImport(Musl)
 import Musl
+#elseif canImport(Bionic)
+import Bionic
 #endif
 
 // WORKAROUND_SR9811
diff --git a/swift-corelibs-foundation/Sources/FoundationNetworking/HTTPCookie.swift b/swift-corelibs-foundation/Sources/FoundationNetworking/HTTPCookie.swift
index e0d1cbbd..237c1daf 100644
--- a/swift-corelibs-foundation/Sources/FoundationNetworking/HTTPCookie.swift
+++ b/swift-corelibs-foundation/Sources/FoundationNetworking/HTTPCookie.swift
@@ -15,6 +15,8 @@ import Foundation
 
 #if os(Windows)
 import WinSDK
+#elseif canImport(Android)
+import Android
 #endif
 
 public struct HTTPCookiePropertyKey : RawRepresentable, Equatable, Hashable, Sendable {
diff --git a/swift-corelibs-foundation/Sources/plutil/main.swift b/swift-corelibs-foundation/Sources/plutil/main.swift
index 29316d16..29584596 100644
--- a/swift-corelibs-foundation/Sources/plutil/main.swift
+++ b/swift-corelibs-foundation/Sources/plutil/main.swift
@@ -15,6 +15,9 @@ import Glibc
 #elseif canImport(Musl)
 import Foundation
 import Musl
+#elseif canImport(Bionic)
+import Foundation
+import Bionic
 #elseif canImport(CRT)
 import Foundation
 import CRT
diff --git a/swift-corelibs-foundation/Sources/xdgTestHelper/main.swift b/swift-corelibs-foundation/Sources/xdgTestHelper/main.swift
index d515a63f..fb037e24 100644
--- a/swift-corelibs-foundation/Sources/xdgTestHelper/main.swift
+++ b/swift-corelibs-foundation/Sources/xdgTestHelper/main.swift
@@ -19,6 +19,8 @@ import FoundationNetworking
 #endif
 #if os(Windows)
 import WinSDK
+#elseif canImport(Android)
+import Android
 #endif
 
 enum HelperCheckStatus : Int32 {
diff --git a/swift-corelibs-foundation/Sources/Foundation/NSPathUtilities.swift b/swift-corelibs-foundation/Sources/Foundation/NSPathUtilities.swift
--- a/swift-corelibs-foundation/Sources/Foundation/NSPathUtilities.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/NSPathUtilities.swift
@@ -19,6 +19,8 @@
     get { WASILibc.errno }
     set { WASILibc.errno = newValue }
 }
+#elseif os(Android)
+import Android
 #endif
 
 #if os(Windows)
diff --git a/swift-corelibs-foundation/Sources/Foundation/Process.swift b/swift-corelibs-foundation/Sources/Foundation/Process.swift
index 758dd1df..02970992 100644
--- a/swift-corelibs-foundation/Sources/Foundation/Process.swift
+++ b/swift-corelibs-foundation/Sources/Foundation/Process.swift
@@ -927,8 +927,8 @@ open class Process: NSObject, @unchecked Sendable {
         }
         let useFallbackChdir: Bool
         if let dir = currentDirectoryURL?.path {
-            let chdirResult = _CFPosixSpawnFileActionsChdir(fileActions, dir)
-            useFallbackChdir = chdirResult == ENOSYS
+            // let chdirResult = _CFPosixSpawnFileActionsChdir(fileActions, dir)
+            useFallbackChdir = true ; let chdirResult = ENOSYS
             if !useFallbackChdir {
                 try _throwIfPosixError(chdirResult)
             }
From ab001004196b249af359d6152e5c2d06c11bee56
From: Alex Lorenz <arphaman@gmail.com>
Date: Tue, 29 Oct 2024 13:00:11 -0700
Subject: [PATCH] [android] fix the android build (#999)

Platform.swift regressed after 71eefee7fca08ecbeacc89098b74ab80319baa6b
---

diff --git a/swift-foundation/Sources/FoundationEssentials/Platform.swift b/swift-foundation/Sources/FoundationEssentials/Platform.swift
index d8b8fe6f..15a1362f 100644
--- a/swift-foundation/Sources/FoundationEssentials/Platform.swift
+++ b/swift-foundation/Sources/FoundationEssentials/Platform.swift
@@ -29,8 +29,7 @@ fileprivate let _pageSize: Int = {
 // WebAssembly defines a fixed page size
 fileprivate let _pageSize: Int = 65_536
 #elseif os(Android)
-import Bionic
-import unistd
+import Android
 fileprivate let _pageSize: Int = Int(getpagesize())
 #elseif canImport(Glibc)
 import Glibc
@@ -142,7 +141,7 @@ extension Platform {
     typealias Operation<Input, Output> = (Input, UnsafeMutablePointer<Output>, UnsafeMutablePointer<CChar>, Int, UnsafeMutablePointer<UnsafeMutablePointer<Output>?>) -> Int32
     #endif
     
-    private static func withUserGroupBuffer<Input, Output, R>(_ input: Input, _ output: Output, sizeProperty: Int32, operation: Operation<Input, Output>, block: (Output) throws -> R) rethrows -> R? {
+    private static func withUserGroupBuffer<Input, Output, R>(_ input: Input, _ output: Output, sizeProperty: Int32, operation: Operation<Input, Output>, block: (Output) throws -> R?) rethrows -> R? {
         var bufferLen = sysconf(sizeProperty)
         if bufferLen == -1 {
             bufferLen = 4096 // Generous default size estimate
@@ -172,31 +171,51 @@ extension Platform {
     
     static func name(forUID uid: uid_t) -> String? {
         withUserGroupBuffer(uid, passwd(), sizeProperty: Int32(_SC_GETPW_R_SIZE_MAX), operation: getpwuid_r) {
-            String(cString: $0.pw_name)
+            // Android's pw_name `char *`` is nullable when it should be non-null.
+            // FIXME: avoid the coerce cast workaround once https://github.com/android/ndk/issues/2098 is fixed.
+            let pw_name: UnsafeMutablePointer<CChar>? = $0.pw_name
+            return pw_name.flatMap { String(cString: $0) }
         }
     }
     
     static func fullName(forUID uid: uid_t) -> String? {
         withUserGroupBuffer(uid, passwd(), sizeProperty: Int32(_SC_GETPW_R_SIZE_MAX), operation: getpwuid_r) {
-            String(cString: $0.pw_gecos)
+#if os(Android) && _pointerBitWidth(_32)
+            // pw_gecos isn't available on 32-bit Android.
+            let pw_gecos: UnsafeMutablePointer<CChar>? = nil
+#else
+            // Android's pw_gecos `char *`` is nullable, so always coerce to a nullable pointer
+            // in order to be compatible with Android.
+            let pw_gecos: UnsafeMutablePointer<CChar>? = $0.pw_gecos
+#endif
+            return pw_gecos.flatMap { String(cString: $0) }
         }
     }
     
     static func name(forGID gid: gid_t) -> String? {
         withUserGroupBuffer(gid, group(), sizeProperty: Int32(_SC_GETGR_R_SIZE_MAX), operation: getgrgid_r) {
-            String(cString: $0.gr_name)
+            // Android's gr_name `char *`` is nullable when it should be non-null.
+            // FIXME: avoid the coerce cast workaround once https://github.com/android/ndk/issues/2098 is fixed.
+            let gr_name: UnsafeMutablePointer<CChar>? = $0.gr_name
+            return gr_name.flatMap { String(cString: $0) }
         }
     }
     
     static func homeDirectory(forUserName userName: String) -> String? {
         withUserGroupBuffer(userName, passwd(), sizeProperty: Int32(_SC_GETPW_R_SIZE_MAX), operation: getpwnam_r) {
-            String(cString: $0.pw_dir)
+            // Android's pw_dir `char *`` is nullable when it should be non-null.
+            // FIXME: avoid the coerce cast workaround once https://github.com/android/ndk/issues/2098 is fixed.
+            let pw_dir: UnsafeMutablePointer<CChar>? = $0.pw_dir
+            return pw_dir.flatMap { String(cString: $0) }
         }
     }
     
     static func homeDirectory(forUID uid: uid_t) -> String? {
         withUserGroupBuffer(uid, passwd(), sizeProperty: Int32(_SC_GETPW_R_SIZE_MAX), operation: getpwuid_r) {
-            String(cString: $0.pw_dir)
+            // Android's pw_dir `char *`` is nullable when it should be non-null.
+            // FIXME: avoid the coerce cast workaround once https://github.com/android/ndk/issues/2098 is fixed.
+            let pw_dir: UnsafeMutablePointer<CChar>? = $0.pw_dir
+            return pw_dir.flatMap { String(cString: $0) }
         }
     }
 }
commit ad6ca71b4eef90e3ae69b130e3cc989a21192020
Author: Alex Lorenz <arphaman@gmail.com>
Date:   Wed Aug 14 10:56:25 2024 -0700

    [android] fix the LP32 armv7/i686 android build (#846)
    
    * [android] fix the LP32 armv7/i686 android build
    
    * Update Sources/FoundationEssentials/Android+Extensions.swift
    
    Co-authored-by: Jeremy Schonfeld <1004103+jmschonfeld@users.noreply.github.com>
    
    * drop the android Lp32 specific operator &
    
    ---------
    
    Co-authored-by: Jeremy Schonfeld <1004103+jmschonfeld@users.noreply.github.com>

diff --git a/swift-foundation/Sources/FoundationEssentials/Data/Data+Reading.swift b/swift-foundation/Sources/FoundationEssentials/Data/Data+Reading.swift
index 2540b14..a779837 100644
--- a/swift-foundation/Sources/FoundationEssentials/Data/Data+Reading.swift
+++ b/swift-foundation/Sources/FoundationEssentials/Data/Data+Reading.swift
@@ -325,7 +325,7 @@ internal func readBytesFromFile(path inPath: PathOrURL, reportProgress: Bool, ma
     }
     
     let fileSize = min(Int(clamping: filestat.st_size), maxLength ?? Int.max)
-    let fileType = filestat.st_mode & S_IFMT
+    let fileType = mode_t(filestat.st_mode) & S_IFMT
 #if !NO_FILESYSTEM
     let shouldMap = shouldMapFileDescriptor(fd, path: inPath, options: options)
 #else
diff --git a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Basics.swift b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Basics.swift
index 991c5e8..d3e6de3 100644
--- a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Basics.swift
+++ b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Basics.swift
@@ -221,7 +221,7 @@ internal struct _FileManagerImpl {
             var statBuf = stat()
             let fd = open(path, 0, 0)
             guard fd >= 0 else { return nil }
-            if fstat(fd, &statBuf) < 0 || statBuf.st_mode & S_IFMT == S_IFDIR {
+            if fstat(fd, &statBuf) < 0 || mode_t(statBuf.st_mode) & S_IFMT == S_IFDIR {
                 close(fd)
                 return nil
             }
@@ -240,7 +240,7 @@ internal struct _FileManagerImpl {
         }
         
         /* check for being same type */
-        if myInfo.st_mode & S_IFMT != otherInfo.st_mode & S_IFMT {
+        if mode_t(myInfo.st_mode) & S_IFMT != mode_t(otherInfo.st_mode) & S_IFMT {
             return false
         }
         
diff --git a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Files.swift b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Files.swift
index b8cd50a..bee9fb3 100644
--- a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Files.swift
+++ b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Files.swift
@@ -175,7 +175,8 @@ extension stat {
     }
     
     fileprivate var fileAttributes: [FileAttributeKey : Any] {
-        let fileType = st_mode.fileType
+        // On 32 bit Android, st_mode is UInt32.
+        let fileType = mode_t(st_mode).fileType
         var result: [FileAttributeKey : Any] = [
             .size : _writeFileAttributePrimitive(st_size, as: UInt.self),
             .modificationDate : modificationDate,
@@ -400,7 +401,7 @@ extension _FileManagerImpl {
             guard stat(rep, &fileInfo) == 0 else {
                 return (false, false)
             }
-            let isDir = (fileInfo.st_mode & S_IFMT) == S_IFDIR
+            let isDir = (mode_t(fileInfo.st_mode) & S_IFMT) == S_IFDIR
             return (true, isDir)
         }
 #endif
@@ -479,7 +480,7 @@ extension _FileManagerImpl {
             return false
         }
         
-        if ((dirInfo.st_mode & S_ISVTX) != 0) && fileManager.fileExists(atPath: path) {
+        if ((mode_t(dirInfo.st_mode) & S_ISVTX) != 0) && fileManager.fileExists(atPath: path) {
             // its sticky so verify that we own the file
             // otherwise we answer YES on the principle that if
             // we create files we can delete them
diff --git a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Utilities.swift b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Utilities.swift
index 9bac967..e531cb5 100644
--- a/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Utilities.swift
+++ b/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Utilities.swift
@@ -49,19 +49,19 @@ extension FILETIME {
 #if !os(Windows)
 extension stat {
     var isDirectory: Bool {
-        (self.st_mode & S_IFMT) == S_IFDIR
+        (mode_t(self.st_mode) & S_IFMT) == S_IFDIR
     }
     
     var isRegular: Bool {
-        (self.st_mode & S_IFMT) == S_IFREG
+        (mode_t(self.st_mode) & S_IFMT) == S_IFREG
     }
     
     var isSymbolicLink: Bool {
-        (self.st_mode & S_IFMT) == S_IFLNK
+        (mode_t(self.st_mode) & S_IFMT) == S_IFLNK
     }
     
     var isSpecial: Bool {
-        let type = self.st_mode & S_IFMT
+        let type = mode_t(self.st_mode) & S_IFMT
         return type == S_IFBLK || type == S_IFCHR
     }
 }
diff --git a/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations+Enumeration.swift b/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations+Enumeration.swift
index 2c9a02f..500da1d 100644
--- a/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations+Enumeration.swift
+++ b/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations+Enumeration.swift
@@ -367,7 +367,7 @@ struct _POSIXDirectoryContentsSequence: Sequence {
                         let statDir = directoryPath + "/" + fileName
                         if stat(statDir, &statBuf) == 0 {
                             // #define S_ISDIR(m)      (((m) & S_IFMT) == S_IFDIR)
-                            if (statBuf.st_mode & S_IFMT) == S_IFDIR {
+                            if (mode_t(statBuf.st_mode) & S_IFMT) == S_IFDIR {
                                 isDirectory = true
                             }
                         }
diff --git a/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations.swift b/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations.swift
index 03adcc6..92e609f 100644
--- a/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations.swift
+++ b/swift-foundation/Sources/FoundationEssentials/FileManager/FileOperations.swift
@@ -867,7 +867,7 @@ enum _FileOperations {
 
         #if !os(WASI) // WASI doesn't have fchmod for now
         // Set the file permissions using fchmod() instead of when open()ing to avoid umask() issues
-        let permissions = fileInfo.st_mode & ~S_IFMT
+        let permissions = mode_t(fileInfo.st_mode) & ~S_IFMT
         guard fchmod(dstfd, permissions) == 0 else {
             try delegate.throwIfNecessary(errno, String(cString: srcPtr), String(cString: dstPtr))
             return
diff --git a/swift-foundation/Sources/FoundationEssentials/ProcessInfo/ProcessInfo.swift b/swift-foundation/Sources/FoundationEssentials/ProcessInfo/ProcessInfo.swift
index 2e809fa..d01ca3f 100644
--- a/swift-foundation/Sources/FoundationEssentials/ProcessInfo/ProcessInfo.swift
+++ b/swift-foundation/Sources/FoundationEssentials/ProcessInfo/ProcessInfo.swift
@@ -198,7 +198,10 @@ final class _ProcessInfo: Sendable {
     }
 
     var fullUserName: String {
-#if canImport(Darwin) || os(Android) || canImport(Glibc) || canImport(Musl)
+#if os(Android) && (arch(i386) || arch(arm))
+        // On LP32 Android, pw_gecos doesn't exist and is presumed to be NULL.
+        return ""
+#elseif canImport(Darwin) || os(Android) || canImport(Glibc) || canImport(Musl)
         let (euid, _) = Platform.getUGIDs()
         if let fullName = Platform.fullName(forUID: euid) {
             return fullName
diff --git a/swift-foundation/Sources/FoundationEssentials/String/String+Path.swift b/swift-foundation/Sources/FoundationEssentials/String/String+Path.swift
index 477d5d3..1ce75d6 100644
--- a/swift-foundation/Sources/FoundationEssentials/String/String+Path.swift
+++ b/swift-foundation/Sources/FoundationEssentials/String/String+Path.swift
@@ -737,7 +737,7 @@ extension String {
                         if lstat(buffer.baseAddress!, &statBuf) < 0 {
                             return nil
                         }
-                        if statBuf.st_mode & S_IFMT == S_IFLNK {
+                        if mode_t(statBuf.st_mode) & S_IFMT == S_IFLNK {
                             /* Examples:
                              *   fspath == /foo/bar0baz/quux/froboz
                              *   linkx == /tic/tac/toe