Fix OSX builders on CI

Looks like Travis has moved on from our old images, so we're forced to
update.

.travis.yml

@@ -41,10 +41,10 @@ matrix:
     - env: TARGET=i686-unknown-linux-gnu
     - os: osx
       env: TARGET=x86_64-apple-darwin NO_ADD=1
-      osx_image: xcode8.3
+      osx_image: xcode9.4
     - os: osx
       env: TARGET=i686-apple-darwin
-      osx_image: xcode8.3
+      osx_image: xcode9.4
     - env: TARGET=arm-linux-androideabi
     - env: TARGET=aarch64-linux-android
     # FIXME(#826) should reenable
@@ -59,14 +59,14 @@ matrix:
       # FIXME(#856)
       rust: 1.22.1
     - os: osx
-      osx_image: xcode8.2
+      osx_image: xcode9.4
       env: TARGET=i386-apple-ios
            CARGO_TARGET_I386_APPLE_IOS_RUNNER=$HOME/runtest
            RUSTFLAGS=-Clink-arg=-mios-simulator-version-min=7.0
       before_install:
         rustc ./ci/ios/deploy_and_run_on_ios_simulator.rs -o $HOME/runtest
     - os: osx
-      osx_image: xcode8.2
+      osx_image: xcode9.4
       env: TARGET=x86_64-apple-ios
            CARGO_TARGET_X86_64_APPLE_IOS_RUNNER=$HOME/runtest
            RUSTFLAGS=-Clink-arg=-mios-simulator-version-min=7.0
@@ -91,15 +91,15 @@ matrix:
       rust: beta
     - os: osx
       env: TARGET=x86_64-apple-darwin NO_ADD=1
-      osx_image: xcode8.3
+      osx_image: xcode9.4
       rust: beta
 
     # nightly
     - env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
       rust: nightly
     - os: osx
       env: TARGET=x86_64-apple-darwin NO_ADD=1
-      osx_image: xcode8.3
+      osx_image: xcode9.4
       rust: nightly
     # not available on stable
     # without --release the build fails

libc-test/build.rs

@@ -15,6 +15,7 @@ fn main() {
     let linux = target.contains("unknown-linux");
     let android = target.contains("android");
     let apple = target.contains("apple");
+    let ios = target.contains("apple-ios");
     let emscripten = target.contains("asm");
     let musl = target.contains("musl") || emscripten;
     let uclibc = target.contains("uclibc");
@@ -84,8 +85,10 @@ fn main() {
             cfg.header("sys/socket.h");
         }
         cfg.header("net/if.h");
-        cfg.header("net/route.h");
-        cfg.header("net/if_arp.h");
+        if !ios {
+            cfg.header("net/route.h");
+            cfg.header("net/if_arp.h");
+        }
         cfg.header("netdb.h");
         cfg.header("netinet/in.h");
         cfg.header("netinet/ip.h");
@@ -113,7 +116,7 @@ fn main() {
         cfg.header("pwd.h");
         cfg.header("grp.h");
         cfg.header("sys/utsname.h");
-        if !solaris {
+        if !solaris && !ios {
             cfg.header("sys/ptrace.h");
         }
         cfg.header("sys/mount.h");
@@ -175,19 +178,22 @@ fn main() {
         cfg.header("util.h");
         cfg.header("xlocale.h");
         cfg.header("sys/xattr.h");
-        cfg.header("sys/sys_domain.h");
-        cfg.header("net/if_utun.h");
-        cfg.header("net/bpf.h");
         if target.starts_with("x86") {
             cfg.header("crt_externs.h");
         }
-        cfg.header("net/route.h");
-        cfg.header("netinet/if_ether.h");
         cfg.header("netinet/in.h");
-        cfg.header("sys/proc_info.h");
-        cfg.header("sys/kern_control.h");
         cfg.header("sys/ipc.h");
         cfg.header("sys/shm.h");
+
+        if !ios {
+            cfg.header("sys/sys_domain.h");
+            cfg.header("net/if_utun.h");
+            cfg.header("net/bpf.h");
+            cfg.header("net/route.h");
+            cfg.header("netinet/if_ether.h");
+            cfg.header("sys/proc_info.h");
+            cfg.header("sys/kern_control.h");
+        }
     }
 
     if bsdlike {
@@ -449,6 +455,17 @@ fn main() {
             // header conflicts when including them with all the other structs.
             "termios2" => true,
 
+            // Present on historical versions of iOS but missing in more recent
+            // SDKs
+            "bpf_hdr" |
+            "proc_taskinfo" |
+            "proc_taskallinfo" |
+            "proc_bsdinfo" |
+            "proc_threadinfo" |
+            "sockaddr_inarp" |
+            "sockaddr_ctl" |
+            "arphdr" if ios => true,
+
             _ => false
         }
     });
@@ -594,6 +611,30 @@ fn main() {
             // shouldn't be used in code anyway...
             "AF_MAX" | "PF_MAX" => true,
 
+            // Present on historical versions of iOS, but now removed in more
+            // recent SDKs
+            "ARPOP_REQUEST" |
+            "ARPOP_REPLY" |
+            "ATF_COM" |
+            "ATF_PERM" |
+            "ATF_PUBL" |
+            "ATF_USETRAILERS" |
+            "AF_SYS_CONTROL" |
+            "SYSPROTO_EVENT" |
+            "PROC_PIDTASKALLINFO" |
+            "PROC_PIDTASKINFO" |
+            "PROC_PIDTHREADINFO" |
+            "UTUN_OPT_FLAGS" |
+            "UTUN_OPT_IFNAME" |
+            "BPF_ALIGNMENT" |
+            "SYSPROTO_CONTROL" if ios => true,
+            s if ios && s.starts_with("RTF_") => true,
+            s if ios && s.starts_with("RTM_") => true,
+            s if ios && s.starts_with("RTA_") => true,
+            s if ios && s.starts_with("RTAX_") => true,
+            s if ios && s.starts_with("RTV_") => true,
+            s if ios && s.starts_with("DLT_") => true,
+
             _ => false,
         }
     });
@@ -736,6 +777,10 @@ fn main() {
             // FIXME: mincore is defined with caddr_t on Solaris.
             "mincore" if solaris => true,
 
+            // These were all included in historical versions of iOS but appear
+            // to be removed now
+            "system" | "ptrace" if ios => true,
+
             _ => false,
         }
     });

src/unix/bsd/apple/mod.rs

@@ -765,16 +765,8 @@ pub const VM_FLAGS_SUPERPAGE_MASK: ::c_int = 0x70000;
 pub const VM_FLAGS_RETURN_DATA_ADDR: ::c_int = 0x100000;
 pub const VM_FLAGS_RETURN_4K_DATA_ADDR: ::c_int = 0x800000;
 pub const VM_FLAGS_ALIAS_MASK: ::c_int = 0xFF000000;
-pub const VM_FLAGS_USER_ALLOCATE: ::c_int = VM_FLAGS_FIXED | VM_FLAGS_ANYWHERE |
-                                            VM_FLAGS_PURGABLE |
-                                            VM_FLAGS_RANDOM_ADDR |
-                                            VM_FLAGS_NO_CACHE |
-                                            VM_FLAGS_OVERWRITE |
-                                            VM_FLAGS_SUPERPAGE_MASK |
-                                            VM_FLAGS_ALIAS_MASK;
-pub const VM_FLAGS_USER_MAP: ::c_int = VM_FLAGS_USER_ALLOCATE |
-                                       VM_FLAGS_RETURN_4K_DATA_ADDR |
-                                       VM_FLAGS_RETURN_DATA_ADDR;
+pub const VM_FLAGS_USER_ALLOCATE: ::c_int = 0xff07401b;
+pub const VM_FLAGS_USER_MAP: ::c_int = 0xff97401b;
 pub const VM_FLAGS_USER_REMAP: ::c_int = VM_FLAGS_FIXED | VM_FLAGS_ANYWHERE |
                                         VM_FLAGS_RANDOM_ADDR |
                                         VM_FLAGS_OVERWRITE |

src/unix/mod.rs

@@ -931,6 +931,7 @@ extern {
     pub fn openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int);
     pub fn closelog();
     pub fn setlogmask(maskpri: ::c_int) -> ::c_int;
+    #[cfg_attr(target_os = "macos", link_name = "syslog$DARWIN_EXTSN")]
     pub fn syslog(priority: ::c_int, message: *const ::c_char, ...);
     #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
                link_name = "nice$UNIX2003")]