Commit 7a3f0a55d9

@@ -1078,6 +1078,8 @@ pub const DebugInfo = switch (builtin.os) {
             self.elf.close();
         }
     },
+    builtin.Os.freebsd => struct.{
+    },
     else => @compileError("Unsupported OS"),
 };
 

@@ -229,7 +229,7 @@ pub const File = struct.{
 
     pub fn seekForward(self: File, amount: isize) !void {
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 const result = posix.lseek(self.handle, amount, posix.SEEK_CUR);
                 const err = posix.getErrno(result);
                 if (err > 0) {
@@ -260,7 +260,7 @@ pub const File = struct.{
 
     pub fn seekTo(self: File, pos: usize) !void {
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 const ipos = try math.cast(isize, pos);
                 const result = posix.lseek(self.handle, ipos, posix.SEEK_SET);
                 const err = posix.getErrno(result);
@@ -294,7 +294,7 @@ pub const File = struct.{
 
     pub fn getPos(self: File) !usize {
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 const result = posix.lseek(self.handle, 0, posix.SEEK_CUR);
                 const err = posix.getErrno(result);
                 if (err > 0) {

@@ -3,7 +3,7 @@ const builtin = @import("builtin");
 const Os = builtin.Os;
 const is_windows = builtin.os == Os.windows;
 const is_posix = switch (builtin.os) {
-    builtin.Os.linux, builtin.Os.macosx => true,
+    builtin.Os.linux, builtin.Os.macosx, builtin.Os.freebsd => true,
     else => false,
 };
 const os = @This();
@@ -42,7 +42,7 @@ pub const time = @import("time.zig");
 
 pub const page_size = 4 * 1024;
 pub const MAX_PATH_BYTES = switch (builtin.os) {
-    Os.linux, Os.macosx, Os.ios => posix.PATH_MAX,
+    Os.linux, Os.macosx, Os.ios, Os.freebsd => posix.PATH_MAX,
     // Each UTF-16LE character may be expanded to 3 UTF-8 bytes.
     // If it would require 4 UTF-8 bytes, then there would be a surrogate
     // pair in the UTF-16LE, and we (over)account 3 bytes for it that way.
@@ -103,7 +103,7 @@ const math = std.math;
 /// library implementation.
 pub fn getRandomBytes(buf: []u8) !void {
     switch (builtin.os) {
-        Os.linux => while (true) {
+        Os.linux, Os.freebsd => while (true) {
             // TODO check libc version and potentially call c.getrandom.
             // See #397
             const errno = posix.getErrno(posix.getrandom(buf.ptr, buf.len, 0));

@@ -1161,7 +1161,7 @@ pub fn realC(out_buffer: *[os.MAX_PATH_BYTES]u8, pathname: [*]const u8) RealErro
             const pathname_w = try windows_util.cStrToPrefixedFileW(pathname);
             return realW(out_buffer, pathname_w);
         },
-        Os.macosx, Os.ios, Os.freebsd => {
+        Os.macosx, Os.ios => {
             // TODO instead of calling the libc function here, port the implementation to Zig
             const err = posix.getErrno(posix.realpath(pathname, out_buffer));
             switch (err) {
@@ -1188,6 +1188,15 @@ pub fn realC(out_buffer: *[os.MAX_PATH_BYTES]u8, pathname: [*]const u8) RealErro
 
             return os.readLinkC(out_buffer, proc_path.ptr);
         },
+        Os.freebsd => { // XXX requires fdescfs
+            const fd = try os.posixOpenC(pathname, posix.O_PATH | posix.O_NONBLOCK | posix.O_CLOEXEC, 0);
+            defer os.close(fd);
+
+            var buf: ["/dev/fd/-2147483648".len]u8 = undefined;
+            const proc_path = fmt.bufPrint(buf[0..], "/dev/fd/{}\x00", fd) catch unreachable;
+
+            return os.readLinkC(out_buffer, proc_path.ptr);
+        },
         else => @compileError("TODO implement os.path.real for " ++ @tagName(builtin.os)),
     }
 }

@@ -69,7 +69,7 @@ pub const DirectAllocator = struct.{
         const self = @fieldParentPtr(DirectAllocator, "allocator", allocator);
 
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 const p = os.posix;
                 const alloc_size = if (alignment <= os.page_size) n else n + alignment;
                 const addr = p.mmap(null, alloc_size, p.PROT_READ | p.PROT_WRITE, p.MAP_PRIVATE | p.MAP_ANONYMOUS, -1, 0);
@@ -120,7 +120,7 @@ pub const DirectAllocator = struct.{
         const self = @fieldParentPtr(DirectAllocator, "allocator", allocator);
 
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 if (new_size <= old_mem.len) {
                     const base_addr = @ptrToInt(old_mem.ptr);
                     const old_addr_end = base_addr + old_mem.len;
@@ -165,7 +165,7 @@ pub const DirectAllocator = struct.{
         const self = @fieldParentPtr(DirectAllocator, "allocator", allocator);
 
         switch (builtin.os) {
-            Os.linux, Os.macosx, Os.ios => {
+            Os.linux, Os.macosx, Os.ios, Os.freebsd => {
                 _ = os.posix.munmap(@ptrToInt(bytes.ptr), bytes.len);
             },
             Os.windows => {