Merge branch 'master' of github.com:rust-lang/libc into exchangedata

22 files changed, 978 insertions, 109 deletions

diff --git a/.travis.yml b/.travis.yml
index da3124db08..b6a73f00c2 100644
--- a/.travis.yml
+++ b/.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
@@ -91,7 +91,7 @@ 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
@@ -99,7 +99,7 @@ matrix:
       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
@@ -109,6 +109,13 @@ matrix:
 
     # QEMU based targets that compile in an emulator
     - env: TARGET=x86_64-unknown-freebsd
+  allow_failures:
+    - env: TARGET=i386-apple-ios
+           CARGO_TARGET_I386_APPLE_IOS_RUNNER=$HOME/runtest
+           RUSTFLAGS=-Clink-arg=-mios-simulator-version-min=7.0
+    - env: TARGET=x86_64-apple-ios
+           CARGO_TARGET_X86_64_APPLE_IOS_RUNNER=$HOME/runtest
+           RUSTFLAGS=-Clink-arg=-mios-simulator-version-min=7.0
 
 notifications:
   email:
diff --git a/Cargo.lock b/Cargo.lock
index 2a62e2b449..c47d80d81f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,26 +10,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cc"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.3"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ctest"
-version = "0.1.7"
-source = "git+https://github.com/alexcrichton/ctest#bf780a0e62caf4fb4747bd683713864b444bd6fb"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_syntax 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "dtoa"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -37,11 +37,11 @@ name = "extprim"
 version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -60,7 +60,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "itoa"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -74,19 +74,19 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.41"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+version = "0.2.43"
 
 [[package]]
 name = "libc"
-version = "0.2.42"
+version = "0.2.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc-test"
 version = "0.1.0"
 dependencies = [
- "ctest 0.1.7 (git+https://github.com/alexcrichton/ctest)",
- "libc 0.2.42",
+ "ctest 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43",
 ]
 
 [[package]]
@@ -94,25 +94,25 @@ name = "log"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.1"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "0.4.4"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -120,10 +120,10 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "0.6.3"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -132,13 +132,13 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc_version"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -159,39 +159,39 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.64"
+version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.64"
+version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.19"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "syn"
-version = "0.14.1"
+version = "0.14.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -200,9 +200,9 @@ name = "syntex_errors"
 version = "0.59.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_pos 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -213,8 +213,8 @@ name = "syntex_pos"
 version = "0.59.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -225,9 +225,9 @@ dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "extprim 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_errors 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_pos 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -254,7 +254,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -279,36 +279,36 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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-"checksum cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)" = "49ec142f5768efb5b7622aebc3fdbdbb8950a4b9ba996393cb76ef7466e8747d"
-"checksum cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "405216fd8fe65f718daa7102ea808a946b6ce40c742998fbfd3463645552de18"
-"checksum ctest 0.1.7 (git+https://github.com/alexcrichton/ctest)" = "<none>"
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 "checksum syntex_pos 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)" = "30ab669fa003d208c681f874bbc76d91cc3d32550d16b5d9d2087cf477316470"
 "checksum syntex_syntax 0.59.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03815b9f04d95828770d9c974aa39c6e1f6ef3114eb77a3ce09008a0d15dd142"
 "checksum term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-"checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
+"checksum winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "773ef9dcc5f24b7d850d0ff101e542ff24c3b090a9768e03ff889fdef41f00fd"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/Cargo.toml b/Cargo.toml
index c1ff5da233..a9f0f59603 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "libc"
-version = "0.2.42"
+version = "0.2.43"
 authors = ["The Rust Project Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
diff --git a/ci/ios/deploy_and_run_on_ios_simulator.rs b/ci/ios/deploy_and_run_on_ios_simulator.rs
index b14615036d..95df52d76d 100644
--- a/ci/ios/deploy_and_run_on_ios_simulator.rs
+++ b/ci/ios/deploy_and_run_on_ios_simulator.rs
@@ -123,6 +123,7 @@ fn run_app_on_simulator() {
                     .arg("com.rust.unittests")
                     .output());
 
+    println!("status: {}", output.status);
     println!("stdout --\n{}\n", String::from_utf8_lossy(&output.stdout));
     println!("stderr --\n{}\n", String::from_utf8_lossy(&output.stderr));
 
diff --git a/libc-test/Cargo.toml b/libc-test/Cargo.toml
index c6950d6ea3..79fcf5f01e 100644
--- a/libc-test/Cargo.toml
+++ b/libc-test/Cargo.toml
@@ -9,7 +9,7 @@ path = ".."
 default-features = false
 
 [build-dependencies]
-ctest = { git = "https://github.com/alexcrichton/ctest" }
+ctest = "0.2"
 
 [features]
 default = [ "use_std" ]
diff --git a/libc-test/build.rs b/libc-test/build.rs
index 6c2ac5496e..d46372b44b 100644
--- a/libc-test/build.rs
+++ b/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") {
+        if target.starts_with("x86") && !ios {
             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,
         }
     });
diff --git a/src/lib.rs b/src/lib.rs
index b6b5cdb161..7f8e907aaf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -104,6 +104,9 @@ mod dox;
 cfg_if! {
     if #[cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))] {
         // empty ...
+    } else if #[cfg(target_os = "switch")] {
+        // On the Switch, we only define some useful universal types for
+        // convenience. Those can be found in the switch.rs file.
     } else {
 
         // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help enable
@@ -296,6 +299,9 @@ cfg_if! {
     } else if #[cfg(target_os = "fuchsia")] {
         mod fuchsia;
         pub use fuchsia::*;
+    } else if #[cfg(target_os = "switch")] {
+        mod switch;
+        pub use switch::*;
     } else if #[cfg(unix)] {
         mod unix;
         pub use unix::*;
diff --git a/src/switch.rs b/src/switch.rs
new file mode 100644
index 0000000000..c11379541e
--- /dev/null
+++ b/src/switch.rs
@@ -0,0 +1,48 @@
+//! Switch C type definitions
+
+// Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help enable
+// more optimization opportunities around it recognizing things like
+// malloc/free.
+#[repr(u8)]
+pub enum c_void {
+    // Two dummy variants so the #[repr] attribute can be used.
+    #[doc(hidden)]
+    __variant1,
+    #[doc(hidden)]
+    __variant2,
+}
+
+pub type int8_t = i8;
+pub type int16_t = i16;
+pub type int32_t = i32;
+pub type int64_t = i64;
+pub type uint8_t = u8;
+pub type uint16_t = u16;
+pub type uint32_t = u32;
+pub type uint64_t = u64;
+
+pub type c_schar = i8;
+pub type c_uchar = u8;
+pub type c_short = i16;
+pub type c_ushort = u16;
+pub type c_int = i32;
+pub type c_uint = u32;
+pub type c_float = f32;
+pub type c_double = f64;
+pub type c_longlong = i64;
+pub type c_ulonglong = u64;
+pub type intmax_t = i64;
+pub type uintmax_t = u64;
+
+pub type size_t = usize;
+pub type ptrdiff_t = isize;
+pub type intptr_t = isize;
+pub type uintptr_t = usize;
+pub type ssize_t = isize;
+
+// Arch specific
+pub type off_t = i64;
+pub type c_char = u8;
+pub type c_long = i64;
+pub type c_ulong = u64;
+pub type wchar_t = u32;
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index d7e71c0aef..204fff6979 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/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 |
diff --git a/src/unix/bsd/netbsdlike/netbsd/other/b64/mod.rs b/src/unix/bsd/netbsdlike/netbsd/aarch64.rs
index b07c476aa4..6aa9950ed1 100644
--- a/src/unix/bsd/netbsdlike/netbsd/other/b64/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/aarch64.rs
@@ -1,2 +1,3 @@
 pub type c_long = i64;
 pub type c_ulong = u64;
+pub type c_char = u8;
diff --git a/src/unix/bsd/netbsdlike/netbsd/other/b32/mod.rs b/src/unix/bsd/netbsdlike/netbsd/arm.rs
index 9b0b338b91..377e05be07 100644
--- a/src/unix/bsd/netbsdlike/netbsd/other/b32/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/arm.rs
@@ -1,2 +1,3 @@
 pub type c_long = i32;
 pub type c_ulong = u32;
+pub type c_char = u8;
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 065f6bd36a..917593ee63 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -1,6 +1,5 @@
 use dox::mem;
 
-pub type c_char = i8;
 pub type clock_t = ::c_uint;
 pub type suseconds_t = ::c_int;
 pub type dev_t = u64;
@@ -1110,5 +1109,26 @@ extern {
                       result: *mut *mut ::group) -> ::c_int;
 }
 
-mod other;
-pub use self::other::*;
+cfg_if! {
+    if #[cfg(target_arch = "aarch64")] {
+        mod aarch64;
+        pub use self::aarch64::*;
+    } else if #[cfg(target_arch = "arm")] {
+        mod arm;
+        pub use self::arm::*;
+    } else if #[cfg(target_arch = "powerpc")] {
+        mod powerpc;
+        pub use self::powerpc::*;
+    } else if #[cfg(target_arch = "sparc64")] {
+        mod sparc64;
+        pub use self::sparc64::*;
+    } else if #[cfg(target_arch = "x86_64")] {
+        mod x86_64;
+        pub use self::x86_64::*;
+    } else if #[cfg(target_arch = "x86")] {
+        mod x86;
+        pub use self::x86::*;
+    } else {
+        // Unknown target_arch
+    }
+}
diff --git a/src/unix/bsd/netbsdlike/netbsd/other/mod.rs b/src/unix/bsd/netbsdlike/netbsd/other/mod.rs
deleted file mode 100644
index 3a9bf0866c..0000000000
--- a/src/unix/bsd/netbsdlike/netbsd/other/mod.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-cfg_if! {
-    if #[cfg(any(target_arch = "sparc64",
-                 target_arch = "x86_64"))] {
-        mod b64;
-        pub use self::b64::*;
-    } else if #[cfg(any(target_arch = "arm",
-                        target_arch = "powerpc",
-                        target_arch = "x86"))] {
-        mod b32;
-        pub use self::b32::*;
-    } else {
-        // Unknown target_arch
-    }
-}
diff --git a/src/unix/bsd/netbsdlike/netbsd/powerpc.rs b/src/unix/bsd/netbsdlike/netbsd/powerpc.rs
new file mode 100644
index 0000000000..377e05be07
--- /dev/null
+++ b/src/unix/bsd/netbsdlike/netbsd/powerpc.rs
@@ -0,0 +1,3 @@
+pub type c_long = i32;
+pub type c_ulong = u32;
+pub type c_char = u8;
diff --git a/src/unix/bsd/netbsdlike/netbsd/sparc64.rs b/src/unix/bsd/netbsdlike/netbsd/sparc64.rs
new file mode 100644
index 0000000000..27b9412668
--- /dev/null
+++ b/src/unix/bsd/netbsdlike/netbsd/sparc64.rs
@@ -0,0 +1,3 @@
+pub type c_long = i64;
+pub type c_ulong = u64;
+pub type c_char = i8;
diff --git a/src/unix/bsd/netbsdlike/netbsd/x86.rs b/src/unix/bsd/netbsdlike/netbsd/x86.rs
new file mode 100644
index 0000000000..a00e3337ef
--- /dev/null
+++ b/src/unix/bsd/netbsdlike/netbsd/x86.rs
@@ -0,0 +1,3 @@
+pub type c_long = i32;
+pub type c_ulong = u32;
+pub type c_char = i8;
diff --git a/src/unix/bsd/netbsdlike/netbsd/x86_64.rs b/src/unix/bsd/netbsdlike/netbsd/x86_64.rs
new file mode 100644
index 0000000000..27b9412668
--- /dev/null
+++ b/src/unix/bsd/netbsdlike/netbsd/x86_64.rs
@@ -0,0 +1,3 @@
+pub type c_long = i64;
+pub type c_ulong = u64;
+pub type c_char = i8;
diff --git a/src/unix/hermit/aarch64.rs b/src/unix/hermit/aarch64.rs
new file mode 100644
index 0000000000..1a92e3b4fa
--- /dev/null
+++ b/src/unix/hermit/aarch64.rs
@@ -0,0 +1,2 @@
+pub type c_char = u8;
+pub type wchar_t = u32;
diff --git a/src/unix/hermit/mod.rs b/src/unix/hermit/mod.rs
new file mode 100644
index 0000000000..bed6f7ae7f
--- /dev/null
+++ b/src/unix/hermit/mod.rs
@@ -0,0 +1,736 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// liblibc port for HermitCore (https://hermitcore.org)
+// HermitCore is a unikernel based on lwIP, newlib, and
+// pthread-embedded.
+// Consider these definitions when porting liblibc to another
+// lwIP/newlib/pte-based target.
+//
+// Ported by Colin Finck <colin.finck@rwth-aachen.de>
+
+pub type c_long = i64;
+pub type c_ulong = u64;
+
+pub type uid_t = u16;
+pub type gid_t = u16;
+pub type speed_t = ::c_uint;
+pub type mode_t = u32;
+pub type dev_t = i16;
+pub type nfds_t = ::c_ulong;
+pub type socklen_t = u32;
+pub type sa_family_t = u8;
+pub type clock_t = c_ulong;
+pub type time_t = c_long;
+pub type suseconds_t = c_long;
+pub type off_t = i64;
+pub type rlim_t = ::c_ulonglong;
+pub type sigset_t = ::c_ulong;
+pub type ino_t = u16;
+pub type nlink_t = u16;
+pub type blksize_t = c_long;
+pub type blkcnt_t = c_long;
+pub type stat64 = stat;
+pub type clockid_t = c_ulong;
+pub type pthread_t = pte_handle_t;
+pub type pthread_attr_t = usize;
+pub type pthread_cond_t = usize;
+pub type pthread_condattr_t = usize;
+pub type pthread_key_t = usize;
+pub type pthread_mutex_t = usize;
+pub type pthread_mutexattr_t = usize;
+pub type pthread_rwlock_t = usize;
+pub type pthread_rwlockattr_t = usize;
+
+s! {
+    pub struct addrinfo {
+        pub ai_flags: ::c_int,
+        pub ai_family: ::c_int,
+        pub ai_socktype: ::c_int,
+        pub ai_protocol: ::c_int,
+        pub ai_addrlen: socklen_t,
+        pub ai_addr: *mut ::sockaddr,
+        pub ai_canonname: *mut c_char,
+        pub ai_next: *mut addrinfo,
+    }
+
+    pub struct dirent {
+        pub d_ino: ::c_long,
+        pub d_off: off_t,
+        pub d_reclen: u16,
+        pub d_name: [::c_char; 256],
+    }
+
+    pub struct Dl_info {}
+
+    pub struct fd_set {
+        fds_bits: [::c_ulong; FD_SETSIZE / ULONG_SIZE],
+    }
+
+    pub struct lconv {
+        pub decimal_point: *mut ::c_char,
+        pub thousands_sep: *mut ::c_char,
+        pub grouping: *mut ::c_char,
+        pub int_curr_symbol: *mut ::c_char,
+        pub currency_symbol: *mut ::c_char,
+        pub mon_decimal_point: *mut ::c_char,
+        pub mon_thousands_sep: *mut ::c_char,
+        pub mon_grouping: *mut ::c_char,
+        pub positive_sign: *mut ::c_char,
+        pub negative_sign: *mut ::c_char,
+        pub int_frac_digits: ::c_char,
+        pub frac_digits: ::c_char,
+        pub p_cs_precedes: ::c_char,
+        pub p_sep_by_space: ::c_char,
+        pub n_cs_precedes: ::c_char,
+        pub n_sep_by_space: ::c_char,
+        pub p_sign_posn: ::c_char,
+        pub n_sign_posn: ::c_char,
+        pub int_p_cs_precedes: ::c_char,
+        pub int_p_sep_by_space: ::c_char,
+        pub int_n_cs_precedes: ::c_char,
+        pub int_n_sep_by_space: ::c_char,
+        pub int_p_sign_posn: ::c_char,
+        pub int_n_sign_posn: ::c_char,
+    }
+
+    pub struct passwd { // Unverified
+        pub pw_name: *mut ::c_char,
+        pub pw_passwd: *mut ::c_char,
+        pub pw_uid: ::uid_t,
+        pub pw_gid: ::gid_t,
+        pub pw_gecos: *mut ::c_char,
+        pub pw_dir: *mut ::c_char,
+        pub pw_shell: *mut ::c_char,
+    }
+
+    pub struct pte_handle_t {
+        pub p: usize,
+        pub x: ::c_uint,
+    }
+
+    pub struct sched_param {
+        pub sched_priority: ::c_int,
+    }
+
+    pub struct sem_t {
+        pub value: i32,
+        pub lock: usize,
+        pub sem: usize,
+    }
+
+    pub struct sigaction {
+        pub sa_flags: ::c_int,
+        pub sa_mask: sigset_t,
+        pub sa_handler: usize,
+    }
+
+    pub struct sockaddr {
+        pub sa_len: u8,
+        pub sa_family: sa_family_t,
+        pub sa_data: [::c_char; 14],
+    }
+
+    pub struct sockaddr_in {
+        pub sin_len: u8,
+        pub sin_family: sa_family_t,
+        pub sin_port: ::in_port_t,
+        pub sin_addr: ::in_addr,
+        pub sin_zero: [::c_char; 8],
+    }
+
+    pub struct sockaddr_in6 {
+        pub sin6_len: u8,
+        pub sin6_family: sa_family_t,
+        pub sin6_port: ::in_port_t,
+        pub sin6_flowinfo: u32,
+        pub sin6_addr: ::in6_addr,
+        pub sin6_scope_id: u32,
+    }
+
+    pub struct sockaddr_storage {
+        pub s2_len: u8,
+        pub ss_family: sa_family_t,
+        pub s2_data1: [::c_char; 2],
+        pub s2_data2: [u32; 3],
+        pub s2_data3: [u32; 3],
+    }
+
+    // Dummy
+    pub struct sockaddr_un {
+        pub sun_family: sa_family_t,
+        pub sun_path: [::c_char; 108],
+    }
+
+    pub struct stat {
+        pub st_dev: ::dev_t,
+        pub st_ino: ::ino_t,
+        pub st_mode: ::mode_t,
+        pub st_nlink: ::nlink_t,
+        pub st_uid: ::uid_t,
+        pub st_gid: ::gid_t,
+        pub st_rdev: dev_t,
+        pub st_size: off_t,
+        pub st_atime: time_t,
+        pub st_atime_nsec: ::c_long,
+        pub st_mtime: time_t,
+        pub st_mtime_nsec: ::c_long,
+        pub st_ctime: time_t,
+        pub st_ctime_nsec: ::c_long,
+        pub st_blksize: blksize_t,
+        pub st_blocks: blkcnt_t,
+        pub st_spare4: [::c_long; 2],
+    }
+
+    pub struct statvfs {}
+
+    pub struct tm {
+        pub tm_sec: ::c_int,
+        pub tm_min: ::c_int,
+        pub tm_hour: ::c_int,
+        pub tm_mday: ::c_int,
+        pub tm_mon: ::c_int,
+        pub tm_year: ::c_int,
+        pub tm_wday: ::c_int,
+        pub tm_yday: ::c_int,
+        pub tm_isdst: ::c_int,
+    }
+
+    pub struct tms {
+        pub tms_utime: ::clock_t,
+        pub tms_stime: ::clock_t,
+        pub tms_cutime: ::clock_t,
+        pub tms_cstime: ::clock_t,
+    }
+
+    pub struct termios {}
+
+    pub struct utsname {}
+}
+
+pub const AF_UNSPEC: ::c_int = 0;
+pub const AF_INET: ::c_int = 2;
+pub const AF_INET6: ::c_int = 10;
+
+// Dummy
+pub const AF_UNIX: ::c_int = 1;
+
+pub const CLOCK_REALTIME: ::clockid_t = 1;
+pub const CLOCK_MONOTONIC: ::clockid_t = 4;
+
+// Dummy
+pub const EAI_SYSTEM: ::c_int = -11;
+
+pub const EPERM: ::c_int = 1;
+pub const ENOENT: ::c_int = 2;
+pub const ESRCH: ::c_int = 3;
+pub const EINTR: ::c_int = 4;
+pub const EIO: ::c_int = 5;
+pub const ENXIO: ::c_int = 6;
+pub const E2BIG: ::c_int = 7;
+pub const ENOEXEC: ::c_int = 8;
+pub const EBADF: ::c_int = 9;
+pub const ECHILD: ::c_int = 10;
+pub const EAGAIN: ::c_int = 11;
+pub const ENOMEM: ::c_int = 12;
+pub const EACCES: ::c_int = 13;
+pub const EFAULT: ::c_int = 14;
+pub const EBUSY: ::c_int = 16;
+pub const EEXIST: ::c_int = 17;
+pub const EXDEV: ::c_int = 18;
+pub const ENODEV: ::c_int = 19;
+pub const ENOTDIR: ::c_int = 20;
+pub const EISDIR: ::c_int = 21;
+pub const EINVAL: ::c_int = 22;
+pub const ENFILE: ::c_int = 23;
+pub const EMFILE: ::c_int = 24;
+pub const ENOTTY: ::c_int = 25;
+pub const ETXTBSY: ::c_int = 26;
+pub const EFBIG: ::c_int = 27;
+pub const ENOSPC: ::c_int = 28;
+pub const ESPIPE: ::c_int = 29;
+pub const EROFS: ::c_int = 30;
+pub const EMLINK: ::c_int = 31;
+pub const EPIPE: ::c_int = 32;
+pub const EDOM: ::c_int = 33;
+pub const ERANGE: ::c_int = 34;
+pub const EDEADLK: ::c_int = 35;
+pub const ENAMETOOLONG: ::c_int = 36;
+pub const ENOLCK: ::c_int = 37;
+pub const ENOSYS: ::c_int = 38;
+pub const ENOTEMPTY: ::c_int = 39;
+pub const ELOOP: ::c_int = 40;
+pub const EWOULDBLOCK: ::c_int = EAGAIN;
+pub const ENOMSG: ::c_int = 42;
+pub const EIDRM: ::c_int = 43;
+pub const ECHRNG: ::c_int = 44;
+pub const EL2NSYNC: ::c_int = 45;
+pub const EL3HLT: ::c_int = 46;
+pub const EL3RST: ::c_int = 47;
+pub const ELNRNG: ::c_int = 48;
+pub const EUNATCH: ::c_int = 49;
+pub const ENOCSI: ::c_int = 50;
+pub const EL2HLT: ::c_int = 51;
+pub const EBADE: ::c_int = 52;
+pub const EBADR: ::c_int = 53;
+pub const EXFULL: ::c_int = 54;
+pub const ENOANO: ::c_int = 55;
+pub const EBADRQC: ::c_int = 56;
+pub const EBADSLT: ::c_int = 57;
+pub const EDEADLOCK: ::c_int = EDEADLK;
+pub const EBFONT: ::c_int = 59;
+pub const ENOSTR: ::c_int = 60;
+pub const ENODATA: ::c_int = 61;
+pub const ETIME: ::c_int = 62;
+pub const ENOSR: ::c_int = 63;
+pub const ENONET: ::c_int = 64;
+pub const ENOPKG: ::c_int = 65;
+pub const EREMOTE: ::c_int = 66;
+pub const ENOLINK: ::c_int = 67;
+pub const EADV: ::c_int = 68;
+pub const ESRMNT: ::c_int = 69;
+pub const ECOMM: ::c_int = 70;
+pub const EPROTO: ::c_int = 71;
+pub const EMULTIHOP: ::c_int = 72;
+pub const EDOTDOT: ::c_int = 73;
+pub const EBADMSG: ::c_int = 74;
+pub const EOVERFLOW: ::c_int = 75;
+pub const ENOTUNIQ: ::c_int = 76;
+pub const EBADFD: ::c_int = 77;
+pub const EREMCHG: ::c_int = 78;
+pub const ELIBACC: ::c_int = 79;
+pub const ELIBBAD: ::c_int = 80;
+pub const ELIBSCN: ::c_int = 81;
+pub const ELIBMAX: ::c_int = 82;
+pub const ELIBEXEC: ::c_int = 83;
+pub const EILSEQ: ::c_int = 84;
+pub const ERESTART: ::c_int = 85;
+pub const ESTRPIPE: ::c_int = 86;
+pub const EUSERS: ::c_int = 87;
+pub const ENOTSOCK: ::c_int = 88;
+pub const EDESTADDRREQ: ::c_int = 89;
+pub const EMSGSIZE: ::c_int = 90;
+pub const EPROTOTYPE: ::c_int = 91;
+pub const ENOPROTOOPT: ::c_int = 92;
+pub const EPROTONOSUPPORT: ::c_int = 93;
+pub const ESOCKTNOSUPPORT: ::c_int = 94;
+pub const EOPNOTSUPP: ::c_int = 95;
+pub const EPFNOSUPPORT: ::c_int = 96;
+pub const EAFNOSUPPORT: ::c_int = 97;
+pub const EADDRINUSE: ::c_int = 98;
+pub const EADDRNOTAVAIL: ::c_int = 99;
+pub const ENETDOWN: ::c_int = 100;
+pub const ENETUNREACH: ::c_int = 101;
+pub const ENETRESET: ::c_int = 102;
+pub const ECONNABORTED: ::c_int = 103;
+pub const ECONNRESET: ::c_int = 104;
+pub const ENOBUFS: ::c_int = 105;
+pub const EISCONN: ::c_int = 106;
+pub const ENOTCONN: ::c_int = 107;
+pub const ESHUTDOWN: ::c_int = 108;
+pub const ETOOMANYREFS: ::c_int = 109;
+pub const ETIMEDOUT: ::c_int = 110;
+pub const ECONNREFUSED: ::c_int = 111;
+pub const EHOSTDOWN: ::c_int = 112;
+pub const EHOSTUNREACH: ::c_int = 113;
+pub const EALREADY: ::c_int = 114;
+pub const EINPROGRESS: ::c_int = 115;
+pub const ESTALE: ::c_int = 116;
+pub const EUCLEAN: ::c_int = 117;
+pub const ENOTNAM: ::c_int = 118;
+pub const ENAVAIL: ::c_int = 119;
+pub const EISNAM: ::c_int = 120;
+pub const EREMOTEIO: ::c_int = 121;
+pub const EDQUOT: ::c_int = 122;
+pub const ENOMEDIUM: ::c_int = 123;
+pub const EMEDIUMTYPE: ::c_int = 124;
+pub const ECANCELED: ::c_int = 125;
+pub const ENOKEY: ::c_int = 126;
+pub const EKEYEXPIRED: ::c_int = 127;
+pub const EKEYREVOKED: ::c_int = 128;
+pub const EKEYREJECTED: ::c_int = 129;
+pub const EOWNERDEAD: ::c_int = 130;
+pub const ENOTRECOVERABLE: ::c_int = 131;
+pub const ERFKILL: ::c_int = 132;
+pub const EHWPOISON: ::c_int = 133;
+
+pub const EXIT_FAILURE: ::c_int = 1;
+pub const EXIT_SUCCESS: ::c_int = 0;
+
+pub const F_DUPFD: ::c_int = 0;
+pub const F_GETFD: ::c_int = 1;
+pub const F_SETFD: ::c_int = 2;
+pub const F_GETFL: ::c_int = 3;
+pub const F_SETFL: ::c_int = 4;
+pub const F_GETOWN: ::c_int = 5;
+pub const F_SETOWN: ::c_int = 6;
+pub const F_GETLK: ::c_int = 7;
+pub const F_SETLK: ::c_int = 8;
+pub const F_SETLKW: ::c_int = 9;
+pub const F_RGETLK: ::c_int = 10;
+pub const F_RSETLK: ::c_int = 11;
+pub const F_CNVT: ::c_int = 12;
+pub const F_RSETLKW: ::c_int = 13;
+pub const F_DUPFD_CLOEXEC: ::c_int = 14;
+
+pub const FD_SETSIZE: usize = 1024;
+
+// Dummy
+pub const FIOCLEX: ::c_int = 0x5451;
+
+pub const FIONBIO: ::c_int = 0x8004667e;
+pub const FIONREAD: ::c_int = 0x4004667f;
+
+pub const IP_ADD_MEMBERSHIP: ::c_int = 3;
+pub const IP_DROP_MEMBERSHIP: ::c_int = 4;
+
+pub const IP_TOS: ::c_int = 1;
+pub const IP_TTL: ::c_int = 2;
+
+pub const IP_MULTICAST_TTL: ::c_int = 5;
+pub const IP_MULTICAST_IF: ::c_int = 6;
+pub const IP_MULTICAST_LOOP: ::c_int = 7;
+
+pub const IPV6_JOIN_GROUP: ::c_int = 12;
+pub const IPV6_ADD_MEMBERSHIP: ::c_int = 12;
+pub const IPV6_LEAVE_GROUP: ::c_int = 13;
+pub const IPV6_DROP_MEMBERSHIP: ::c_int = 13;
+pub const IPV6_V6ONLY: ::c_int = 27;
+
+// Dummy
+pub const IPV6_MULTICAST_LOOP: ::c_int = 7;
+
+pub const MSG_PEEK: ::c_int = 0x01;
+pub const MSG_WAITALL: ::c_int = 0x02;
+pub const MSG_OOB: ::c_int = 0x04;
+pub const MSG_DONTWAIT: ::c_int = 0x08;
+pub const MSG_MORE: ::c_int = 0x10;
+
+pub const O_ACCMODE: ::c_int = 3;
+pub const O_RDONLY: ::c_int = 0;
+pub const O_WRONLY: ::c_int = 1;
+pub const O_RDWR: ::c_int = 2;
+pub const O_APPEND: ::c_int = 1024;
+pub const O_CREAT: ::c_int = 64;
+pub const O_EXCL: ::c_int = 128;
+pub const O_NOCTTY: ::c_int = 256;
+pub const O_NONBLOCK: ::c_int = 2048;
+pub const O_TRUNC: ::c_int = 512;
+pub const O_CLOEXEC: ::c_int = 524288;
+
+pub const POLLIN: ::c_short = 0x1;
+pub const POLLPRI: ::c_short = 0x2;
+pub const POLLOUT: ::c_short = 0x4;
+pub const POLLERR: ::c_short = 0x8;
+pub const POLLHUP: ::c_short = 0x10;
+pub const POLLNVAL: ::c_short = 0x20;
+
+pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = usize::max_value();
+pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = usize::max_value();
+pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = usize::max_value();
+
+pub const PTHREAD_MUTEX_NORMAL: ::c_int = 0;
+pub const PTHREAD_MUTEX_RECURSIVE: ::c_int = 1;
+pub const PTHREAD_STACK_MIN: ::size_t = 0;
+
+// Dummy
+pub const RTLD_DEFAULT: *mut ::c_void = 0i64 as *mut ::c_void;
+
+pub const _SC_ARG_MAX: ::c_int = 0;
+pub const _SC_CHILD_MAX: ::c_int = 1;
+pub const _SC_CLK_TCK: ::c_int = 2;
+pub const _SC_NGROUPS_MAX: ::c_int = 3;
+pub const _SC_OPEN_MAX: ::c_int = 4;
+pub const _SC_JOB_CONTROL: ::c_int = 5;
+pub const _SC_SAVED_IDS: ::c_int = 6;
+pub const _SC_VERSION: ::c_int = 7;
+pub const _SC_PAGESIZE: ::c_int = 8;
+pub const _SC_PAGE_SIZE: ::c_int = _SC_PAGESIZE;
+pub const _SC_NPROCESSORS_CONF: ::c_int = 9;
+pub const _SC_NPROCESSORS_ONLN: ::c_int = 10;
+pub const _SC_PHYS_PAGES: ::c_int = 11;
+pub const _SC_AVPHYS_PAGES: ::c_int = 12;
+pub const _SC_MQ_OPEN_MAX: ::c_int = 13;
+pub const _SC_MQ_PRIO_MAX: ::c_int = 14;
+pub const _SC_RTSIG_MAX: ::c_int = 15;
+pub const _SC_SEM_NSEMS_MAX: ::c_int = 16;
+pub const _SC_SEM_VALUE_MAX: ::c_int = 17;
+pub const _SC_SIGQUEUE_MAX: ::c_int = 18;
+pub const _SC_TIMER_MAX: ::c_int = 19;
+pub const _SC_TZNAME_MAX: ::c_int = 20;
+pub const _SC_ASYNCHRONOUS_IO: ::c_int = 21;
+pub const _SC_FSYNC: ::c_int = 22;
+pub const _SC_MAPPED_FILES: ::c_int = 23;
+pub const _SC_MEMLOCK: ::c_int = 24;
+pub const _SC_MEMLOCK_RANGE: ::c_int = 25;
+pub const _SC_MEMORY_PROTECTION: ::c_int = 26;
+pub const _SC_MESSAGE_PASSING: ::c_int = 27;
+pub const _SC_PRIORITIZED_IO: ::c_int = 28;
+pub const _SC_REALTIME_SIGNALS: ::c_int = 29;
+pub const _SC_SEMAPHORES: ::c_int = 30;
+pub const _SC_SHARED_MEMORY_OBJECTS: ::c_int = 31;
+pub const _SC_SYNCHRONIZED_IO: ::c_int = 32;
+pub const _SC_TIMERS: ::c_int = 33;
+pub const _SC_AIO_LISTIO_MAX: ::c_int = 34;
+pub const _SC_AIO_MAX: ::c_int = 35;
+pub const _SC_AIO_PRIO_DELTA_MAX: ::c_int = 36;
+pub const _SC_DELAYTIMER_MAX: ::c_int = 37;
+pub const _SC_THREAD_KEYS_MAX: ::c_int = 38;
+pub const _SC_THREAD_STACK_MIN: ::c_int = 39;
+pub const _SC_THREAD_THREADS_MAX: ::c_int = 40;
+pub const _SC_TTY_NAME_MAX: ::c_int = 41;
+pub const _SC_THREADS: ::c_int = 42;
+pub const _SC_THREAD_ATTR_STACKADDR: ::c_int = 43;
+pub const _SC_THREAD_ATTR_STACKSIZE: ::c_int = 44;
+pub const _SC_THREAD_PRIORITY_SCHEDULING: ::c_int = 45;
+pub const _SC_THREAD_PRIO_INHERIT: ::c_int = 46;
+pub const _SC_THREAD_PRIO_PROTECT: ::c_int = 47;
+pub const _SC_THREAD_PRIO_CEILING: ::c_int = _SC_THREAD_PRIO_PROTECT;
+pub const _SC_THREAD_PROCESS_SHARED: ::c_int = 48;
+pub const _SC_THREAD_SAFE_FUNCTIONS: ::c_int = 49;
+pub const _SC_GETGR_R_SIZE_MAX: ::c_int = 50;
+pub const _SC_GETPW_R_SIZE_MAX: ::c_int = 51;
+pub const _SC_LOGIN_NAME_MAX: ::c_int = 52;
+pub const _SC_THREAD_DESTRUCTOR_ITERATIONS: ::c_int = 53;
+pub const _SC_ADVISORY_INFO: ::c_int = 54;
+pub const _SC_ATEXIT_MAX: ::c_int = 55;
+pub const _SC_BARRIERS: ::c_int = 56;
+pub const _SC_BC_BASE_MAX: ::c_int = 57;
+pub const _SC_BC_DIM_MAX: ::c_int = 58;
+pub const _SC_BC_SCALE_MAX: ::c_int = 59;
+pub const _SC_BC_STRING_MAX: ::c_int = 60;
+pub const _SC_CLOCK_SELECTION: ::c_int = 61;
+pub const _SC_COLL_WEIGHTS_MAX: ::c_int = 62;
+pub const _SC_CPUTIME: ::c_int = 63;
+pub const _SC_EXPR_NEST_MAX: ::c_int = 64;
+pub const _SC_HOST_NAME_MAX: ::c_int = 65;
+pub const _SC_IOV_MAX: ::c_int = 66;
+pub const _SC_IPV6: ::c_int = 67;
+pub const _SC_LINE_MAX: ::c_int = 68;
+pub const _SC_MONOTONIC_CLOCK: ::c_int = 69;
+pub const _SC_RAW_SOCKETS: ::c_int = 70;
+pub const _SC_READER_WRITER_LOCKS: ::c_int = 71;
+pub const _SC_REGEXP: ::c_int = 72;
+pub const _SC_RE_DUP_MAX: ::c_int = 73;
+pub const _SC_SHELL: ::c_int = 74;
+pub const _SC_SPAWN: ::c_int = 75;
+pub const _SC_SPIN_LOCKS: ::c_int = 76;
+pub const _SC_SPORADIC_SERVER: ::c_int = 77;
+pub const _SC_SS_REPL_MAX: ::c_int = 78;
+pub const _SC_SYMLOOP_MAX: ::c_int = 79;
+pub const _SC_THREAD_CPUTIME: ::c_int = 80;
+pub const _SC_THREAD_SPORADIC_SERVER: ::c_int = 81;
+pub const _SC_TIMEOUTS: ::c_int = 82;
+pub const _SC_TRACE: ::c_int = 83;
+pub const _SC_TRACE_EVENT_FILTER: ::c_int = 84;
+pub const _SC_TRACE_EVENT_NAME_MAX: ::c_int = 85;
+pub const _SC_TRACE_INHERIT: ::c_int = 86;
+pub const _SC_TRACE_LOG: ::c_int = 87;
+pub const _SC_TRACE_NAME_MAX: ::c_int = 88;
+pub const _SC_TRACE_SYS_MAX: ::c_int = 89;
+pub const _SC_TRACE_USER_EVENT_MAX: ::c_int = 90;
+pub const _SC_TYPED_MEMORY_OBJECTS: ::c_int = 91;
+pub const _SC_V7_ILP32_OFF32: ::c_int = 92;
+pub const _SC_V6_ILP32_OFF32: ::c_int =_SC_V7_ILP32_OFF32;
+pub const _SC_XBS5_ILP32_OFF32: ::c_int = _SC_V7_ILP32_OFF32;
+pub const _SC_V7_ILP32_OFFBIG: ::c_int = 93;
+pub const _SC_V6_ILP32_OFFBIG: ::c_int = _SC_V7_ILP32_OFFBIG;
+pub const _SC_XBS5_ILP32_OFFBIG: ::c_int = _SC_V7_ILP32_OFFBIG;
+pub const _SC_V7_LP64_OFF64: ::c_int = 94;
+pub const _SC_V6_LP64_OFF64: ::c_int = _SC_V7_LP64_OFF64;
+pub const _SC_XBS5_LP64_OFF64: ::c_int = _SC_V7_LP64_OFF64;
+pub const _SC_V7_LPBIG_OFFBIG: ::c_int = 95;
+pub const _SC_V6_LPBIG_OFFBIG: ::c_int = _SC_V7_LPBIG_OFFBIG;
+pub const _SC_XBS5_LPBIG_OFFBIG: ::c_int = _SC_V7_LPBIG_OFFBIG;
+pub const _SC_XOPEN_CRYPT: ::c_int = 96;
+pub const _SC_XOPEN_ENH_I18N: ::c_int = 97;
+pub const _SC_XOPEN_LEGACY: ::c_int = 98;
+pub const _SC_XOPEN_REALTIME: ::c_int = 99;
+pub const _SC_STREAM_MAX: ::c_int = 100;
+pub const _SC_PRIORITY_SCHEDULING: ::c_int = 101;
+pub const _SC_XOPEN_REALTIME_THREADS: ::c_int = 102;
+pub const _SC_XOPEN_SHM: ::c_int = 103;
+pub const _SC_XOPEN_STREAMS: ::c_int = 104;
+pub const _SC_XOPEN_UNIX: ::c_int = 105;
+pub const _SC_XOPEN_VERSION: ::c_int = 106;
+pub const _SC_2_CHAR_TERM: ::c_int = 107;
+pub const _SC_2_C_BIND: ::c_int = 108;
+pub const _SC_2_C_DEV: ::c_int = 109;
+pub const _SC_2_FORT_DEV: ::c_int = 110;
+pub const _SC_2_FORT_RUN: ::c_int = 111;
+pub const _SC_2_LOCALEDEF: ::c_int = 112;
+pub const _SC_2_PBS: ::c_int = 113;
+pub const _SC_2_PBS_ACCOUNTING: ::c_int = 114;
+pub const _SC_2_PBS_CHECKPOINT: ::c_int = 115;
+pub const _SC_2_PBS_LOCATE: ::c_int = 116;
+pub const _SC_2_PBS_MESSAGE: ::c_int = 117;
+pub const _SC_2_PBS_TRACK: ::c_int = 118;
+pub const _SC_2_SW_DEV: ::c_int = 119;
+pub const _SC_2_UPE: ::c_int = 120;
+pub const _SC_2_VERSION: ::c_int = 121;
+pub const _SC_THREAD_ROBUST_PRIO_INHERIT: ::c_int = 122;
+pub const _SC_THREAD_ROBUST_PRIO_PROTECT: ::c_int = 123;
+pub const _SC_XOPEN_UUCP: ::c_int = 124;
+pub const _SC_LEVEL1_ICACHE_SIZE: ::c_int = 125;
+pub const _SC_LEVEL1_ICACHE_ASSOC: ::c_int = 126;
+pub const _SC_LEVEL1_ICACHE_LINESIZE: ::c_int = 127;
+pub const _SC_LEVEL1_DCACHE_SIZE: ::c_int = 128;
+pub const _SC_LEVEL1_DCACHE_ASSOC: ::c_int = 129;
+pub const _SC_LEVEL1_DCACHE_LINESIZE: ::c_int = 130;
+pub const _SC_LEVEL2_CACHE_SIZE: ::c_int = 131;
+pub const _SC_LEVEL2_CACHE_ASSOC: ::c_int = 132;
+pub const _SC_LEVEL2_CACHE_LINESIZE: ::c_int = 133;
+pub const _SC_LEVEL3_CACHE_SIZE: ::c_int = 134;
+pub const _SC_LEVEL3_CACHE_ASSOC: ::c_int = 135;
+pub const _SC_LEVEL3_CACHE_LINESIZE: ::c_int = 136;
+pub const _SC_LEVEL4_CACHE_SIZE: ::c_int = 137;
+pub const _SC_LEVEL4_CACHE_ASSOC: ::c_int = 138;
+pub const _SC_LEVEL4_CACHE_LINESIZE: ::c_int = 139;
+
+pub const S_BLKSIZE: ::mode_t = 1024;
+pub const S_IREAD: ::mode_t = 256;
+pub const S_IWRITE: ::mode_t = 128;
+pub const S_IEXEC: ::mode_t = 64;
+pub const S_ENFMT: ::mode_t = 1024;
+pub const S_IFMT: ::mode_t = 61440;
+pub const S_IFDIR: ::mode_t = 16384;
+pub const S_IFCHR: ::mode_t = 8192;
+pub const S_IFBLK: ::mode_t = 24576;
+pub const S_IFREG: ::mode_t = 32768;
+pub const S_IFLNK: ::mode_t = 40960;
+pub const S_IFSOCK: ::mode_t = 49152;
+pub const S_IFIFO: ::mode_t = 4096;
+pub const S_IRUSR: ::mode_t = 256;
+pub const S_IWUSR: ::mode_t = 128;
+pub const S_IXUSR: ::mode_t = 64;
+pub const S_IRGRP: ::mode_t = 32;
+pub const S_IWGRP: ::mode_t = 16;
+pub const S_IXGRP: ::mode_t = 8;
+pub const S_IROTH: ::mode_t = 4;
+pub const S_IWOTH: ::mode_t = 2;
+pub const S_IXOTH: ::mode_t = 1;
+
+pub const SEEK_SET: ::c_int = 0;
+pub const SEEK_CUR: ::c_int = 1;
+pub const SEEK_END: ::c_int = 2;
+
+pub const SHUT_RD: ::c_int = 0;
+pub const SHUT_WR: ::c_int = 1;
+pub const SHUT_RDWR: ::c_int = 2;
+
+pub const SIG_SETMASK: ::c_int = 0;
+
+pub const SIGHUP: ::c_int = 1;
+pub const SIGINT: ::c_int = 2;
+pub const SIGQUIT: ::c_int = 3;
+pub const SIGILL: ::c_int = 4;
+pub const SIGABRT: ::c_int = 6;
+pub const SIGEMT: ::c_int = 7;
+pub const SIGFPE: ::c_int = 8;
+pub const SIGKILL: ::c_int = 9;
+pub const SIGSEGV: ::c_int = 11;
+pub const SIGPIPE: ::c_int = 13;
+pub const SIGALRM: ::c_int = 14;
+pub const SIGTERM: ::c_int = 15;
+
+pub const SO_DEBUG: ::c_int = 0x0001;
+pub const SO_ACCEPTCONN: ::c_int = 0x0002;
+pub const SO_REUSEADDR: ::c_int = 0x0004;
+pub const SO_KEEPALIVE: ::c_int = 0x0008;
+pub const SO_DONTROUTE: ::c_int = 0x0010;
+pub const SO_BROADCAST: ::c_int = 0x0020;
+pub const SO_USELOOPBACK: ::c_int = 0x0040;
+pub const SO_LINGER: ::c_int = 0x0080;
+pub const SO_OOBINLINE: ::c_int = 0x0100;
+pub const SO_REUSEPORT: ::c_int = 0x0200;
+pub const SO_SNDBUF: ::c_int = 0x1001;
+pub const SO_RCVBUF: ::c_int = 0x1002;
+pub const SO_SNDLOWAT: ::c_int = 0x1003;
+pub const SO_RCVLOWAT: ::c_int = 0x1004;
+pub const SO_SNDTIMEO: ::c_int = 0x1005;
+pub const SO_RCVTIMEO: ::c_int = 0x1006;
+pub const SO_ERROR: ::c_int = 0x1007;
+pub const SO_TYPE: ::c_int = 0x1008;
+pub const SO_CONTIMEO: ::c_int = 0x1009;
+pub const SO_NO_CHECK: ::c_int = 0x100a;
+
+pub const SOCK_STREAM: ::c_int = 1;
+pub const SOCK_DGRAM: ::c_int = 2;
+pub const SOCK_RAW: ::c_int = 3;
+
+pub const SOL_SOCKET: ::c_int = 0xfff;
+
+pub const STDIN_FILENO: ::c_int = 0;
+pub const STDOUT_FILENO: ::c_int = 1;
+pub const STDERR_FILENO: ::c_int = 2;
+
+pub const TCP_NODELAY: ::c_int = 0x01;
+pub const TCP_KEEPALIVE: ::c_int = 0x02;
+pub const TCP_KEEPIDLE: ::c_int = 0x03;
+pub const TCP_KEEPINTVL: ::c_int = 0x04;
+pub const TCP_KEEPCNT: ::c_int = 0x05;
+
+const ULONG_SIZE: usize = 64;
+
+pub const WNOHANG: ::c_int = 0x00000001;
+
+f! {
+    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub fn WIFEXITED(status: ::c_int) -> bool {
+        (status & 0xff) == 0
+    }
+
+    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
+        status & 0x7f
+    }
+}
+
+extern {
+    pub fn bind(s: ::c_int, name: *const ::sockaddr, namelen: ::socklen_t)
+        -> ::c_int;
+
+    pub fn clock_gettime(clock_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;
+
+    pub fn getpwuid_r(uid: ::uid_t, pwd: *mut passwd, buf: *mut ::c_char,
+        buflen: ::size_t, result: *mut *mut passwd) -> ::c_int;
+
+    // Dummy
+    pub fn ioctl(fd: ::c_int, request: ::c_int, ...) -> ::c_int;
+
+    pub fn memalign(align: ::size_t, nbytes: ::size_t) -> *mut ::c_void;
+
+    pub fn pthread_create(tid: *mut ::pthread_t, attr: *const ::pthread_attr_t,
+        start: extern fn(*mut ::c_void) -> *mut ::c_void, arg: *mut ::c_void)
+        -> ::c_int;
+
+    pub fn pthread_sigmask(how: ::c_int, set: *const ::sigset_t,
+        oset: *mut ::sigset_t) -> ::c_int;
+
+    pub fn recvfrom(s: ::c_int, mem: *mut ::c_void, len: ::size_t,
+        flags: ::c_int, from: *mut ::sockaddr, fromlen: *mut ::socklen_t)
+        -> ::c_int;
+
+    pub fn setgroups(ngroups: ::c_int, grouplist: *const ::gid_t) -> ::c_int;
+}
+
+cfg_if! {
+    if #[cfg(target_arch = "aarch64")] {
+        mod aarch64;
+        pub use self::aarch64::*;
+    } else if #[cfg(target_arch = "x86_64")] {
+        mod x86_64;
+        pub use self::x86_64::*;
+    } else {
+        // Unknown target_arch
+    }
+}
diff --git a/src/unix/hermit/x86_64.rs b/src/unix/hermit/x86_64.rs
new file mode 100644
index 0000000000..76ec3ce823
--- /dev/null
+++ b/src/unix/hermit/x86_64.rs
@@ -0,0 +1,2 @@
+pub type c_char = i8;
+pub type wchar_t = i32;
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index d0e054cc27..9c68178ad1 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -323,6 +323,11 @@ cfg_if! {
         #[link(name = "c")]
         #[link(name = "m")]
         extern {}
+    } else if #[cfg(target_os = "hermit")] {
+        // no_default_libraries is set to false for HermitCore, so only a link
+        // to "pthread" needs to be added.
+        #[link(name = "pthread")]
+        extern {}
     } else {
         #[link(name = "c")]
         #[link(name = "m")]
@@ -931,6 +936,7 @@ 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")]
@@ -970,6 +976,9 @@ cfg_if! {
     } else if #[cfg(target_os = "haiku")] {
         mod haiku;
         pub use self::haiku::*;
+    } else if #[cfg(target_os = "hermit")] {
+        mod hermit;
+        pub use self::hermit::*;
     } else {
         // Unknown target_os
     }
diff --git a/src/unix/solaris/mod.rs b/src/unix/solaris/mod.rs
index db122dea26..f285191677 100644
--- a/src/unix/solaris/mod.rs
+++ b/src/unix/solaris/mod.rs
@@ -354,6 +354,7 @@ s! {
         pub portev_user: *mut ::c_void,
     }
 
+    #[cfg_attr(any(target_arch = "x86", target_arch = "x86_64"), repr(packed))]
     pub struct epoll_event {
         pub events: ::uint32_t,
         pub u64: ::uint64_t,