Prepare v0.1.4 release (#42)

CHANGELOG.md

@@ -4,6 +4,33 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.3] - 2019-06-28
+### Added
+- Add support for `x86_64-unknown-uefi` target by using RDRAND with CPUID
+feature detection. [#30]
+
+### Fixed
+- Fix long buffer issues on Windows and Linux. [#31] [#32]
+- Check `EPERM` in addition to `ENOSYS` on Linux. [#37]
+
+### Changed
+- Improve efficiency by sharing file descriptor across threads. [#13]
+- Remove `cloudabi`, `winapi`, and `fuchsia-cprng` dependencies. [#40]
+- Improve RDRAND implementation. [#24]
+- Don't block during syscall detection on Linux. [#26]
+- Increase consistency with libc implementation on FreeBSD. [#36]
+- Apply `rustfmt`. [#39]
+
+[#30]: https://github.com/rust-random/getrandom/pull/30
+[#13]: https://github.com/rust-random/getrandom/issues/13
+[#40]: https://github.com/rust-random/getrandom/pull/40
+[#26]: https://github.com/rust-random/getrandom/pull/26
+[#24]: https://github.com/rust-random/getrandom/pull/24
+[#39]: https://github.com/rust-random/getrandom/pull/39
+[#36]: https://github.com/rust-random/getrandom/pull/36
+[#31]: https://github.com/rust-random/getrandom/issues/31
+[#32]: https://github.com/rust-random/getrandom/issues/32
+[#37]: https://github.com/rust-random/getrandom/issues/37
 
 ## [0.1.3] - 2019-05-15
 - Update for `wasm32-unknown-wasi` being renamed to `wasm32-wasi`, and for

Cargo.toml

 [package]
 name = "getrandom"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2018"
 authors = ["The Rand Project Developers"]
 license = "MIT OR Apache-2.0"
@@ -28,7 +28,7 @@ libc = "0.2.54"
 lazy_static = "1.3.0"
 
 # For caching result of CPUID check for RDRAND
-[target.'cfg(any(target_env = "sgx", target_os = "uefi"))'.dependencies]
+[target.'cfg(target_os = "uefi")'.dependencies]
 lazy_static = { version = "1.3.0", features = ["spin_no_std"] }
 
 [target.wasm32-unknown-unknown.dependencies]

src/rdrand.rs

@@ -8,10 +8,9 @@
 
 //! Implementation for SGX using RDRAND instruction
 use crate::Error;
-use core::arch::x86_64::{__cpuid, _rdrand64_step};
+use core::arch::x86_64::_rdrand64_step;
 use core::mem;
 use core::num::NonZeroU32;
-use lazy_static::lazy_static;
 
 // Recommendation from "Intel® Digital Random Number Generator (DRNG) Software
 // Implementation Guide" - Section 5.2.1 and "Intel® 64 and IA-32 Architectures
@@ -37,19 +36,23 @@ compile_error!(
     "SGX targets require 'rdrand' target feature. Enable by using -C target-feature=+rdrnd."
 );
 
+#[cfg(any(target_env = "sgx", target_feature = "rdrand"))]
+fn is_rdrand_supported() -> bool {
+    true
+}
+
 // TODO use is_x86_feature_detected!("rdrand") when that works in core. See:
-//   https://github.com/rust-lang-nursery/stdsimd/issues/464
+// https://github.com/rust-lang-nursery/stdsimd/issues/464
+#[cfg(not(any(target_env = "sgx", target_feature = "rdrand")))]
 fn is_rdrand_supported() -> bool {
-    if cfg!(target_feature = "rdrand") {
-        true
-    } else {
-        // SAFETY: All x86_64 CPUs support CPUID leaf 1
-        const FLAG: u32 = 1 << 30;
-        lazy_static! {
-            static ref HAS_RDRAND: bool = unsafe { __cpuid(1).ecx & FLAG != 0 };
-        }
-        *HAS_RDRAND
+    use core::arch::x86_64::__cpuid;
+    use lazy_static::lazy_static;
+    // SAFETY: All x86_64 CPUs support CPUID leaf 1
+    const FLAG: u32 = 1 << 30;
+    lazy_static! {
+        static ref HAS_RDRAND: bool = unsafe { __cpuid(1).ecx & FLAG != 0 };
     }
+    *HAS_RDRAND
 }
 
 pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> {