Merge pull request #3521 from rust-lang/main

Author: JohnTitor

.github/workflows/full_ci.yml

@@ -2,13 +2,16 @@ name: full CI
 
 on:
   merge_group:
-  push:
-    branches: ['main', 'libc-0.2']
+  pull_request:
+    branches:
+      - libc-0.2
+    types:
+      - labeled
 
 jobs:
   docker_linux_tier1:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Docker Linux Tier1
@@ -21,18 +24,15 @@ jobs:
           x86_64-unknown-linux-gnu,
         ]
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TARGET=${{ matrix.target }} sh ./ci/install-rust.sh
       - name: Execute run-docker.sh
         run: LIBC_CI=1 sh ./ci/run-docker.sh ${{ matrix.target }}
 
   macos:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: macOS
@@ -44,18 +44,15 @@ jobs:
           x86_64-apple-darwin,
         ]
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TARGET=${{ matrix.target }} sh ./ci/install-rust.sh
       - name: Execute run.sh
         run: LIBC_CI=1 sh ./ci/run.sh ${{ matrix.target }}
 
   windows:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Windows
@@ -77,9 +74,6 @@ jobs:
               ARCH: i686
           - target: i686-pc-windows-msvc
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Self-update rustup
         run: rustup self update
@@ -92,25 +86,22 @@ jobs:
         shell: bash
 
   style_check:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Style check
     runs-on: ubuntu-22.04
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: sh ./ci/install-rust.sh
       - name: Check style
         run: sh ci/style.sh
 
   docker_linux_tier2:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Docker Linux Tier2
@@ -150,9 +141,6 @@ jobs:
           # x86_64-unknown-redox,
         ]
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TARGET=${{ matrix.target }} sh ./ci/install-rust.sh
@@ -163,7 +151,6 @@ jobs:
   # Because of this, only the nightly compiler can be used on these targets.
   docker_linux_build_std:
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     if: ${{ false }} # This is currently broken
@@ -178,9 +165,6 @@ jobs:
           armv7-unknown-linux-uclibceabihf
         ]
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TOOLCHAIN=nightly INSTALL_RUST_SRC=1 sh ./ci/install-rust.sh
@@ -189,26 +173,23 @@ jobs:
 
   # devkitpro's pacman needs to be connected from Docker.
   docker_switch:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Docker Switch
     needs: [docker_linux_tier1, style_check]
     runs-on: ubuntu-22.04
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: sh ./ci/install-rust.sh
       - name: Execute run-docker.sh
         run: LIBC_CI=1 sh ./ci/run-docker.sh switch
 
   build_channels_linux:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: Build Channels Linux
@@ -233,16 +214,14 @@ jobs:
           1.30.0,
         ]
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TOOLCHAIN=${{ matrix.toolchain }} sh ./ci/install-rust.sh
       - name: Execute build.sh
         run: LIBC_CI=1 TOOLCHAIN=${{ matrix.toolchain }} sh ./ci/build.sh
 
   build_channels_macos:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
       contents: read # to fetch code (actions/checkout)
 
@@ -268,16 +247,14 @@ jobs:
           - { toolchain: 1.30.0, os: macos-11 }
     runs-on: ${{ matrix.target.os }}
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TOOLCHAIN=${{ matrix.target.toolchain }} sh ./ci/install-rust.sh
       - name: Execute build.sh
         run: LIBC_CI=1 TOOLCHAIN=${{ matrix.target.toolchain }} sh ./ci/build.sh
 
   build_channels_windows:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
       contents: read # to fetch code (actions/checkout)
 
@@ -305,16 +282,13 @@ jobs:
         shell: bash
 
   check_cfg:
+    if: github.event.label.name == 'libc-0.2-pre-merge-ci'
     permissions:
-      actions: write # to cancel workflows (rust-lang/simpleinfra/github-actions/cancel-outdated-builds)
       contents: read # to fetch code (actions/checkout)
 
     name: "Check #[cfg]s"
     runs-on: ubuntu-22.04
     steps:
-      - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@HEAD
-        with:
-          github_token: "${{ secrets.GITHUB_TOKEN }}"
       - uses: actions/checkout@v4
       - name: Setup Rust toolchain
         run: TOOLCHAIN=nightly sh ./ci/install-rust.sh
@@ -325,7 +299,7 @@ jobs:
   # protection, rather than having to add each job separately.
   success:
     name: Success
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs: [
       docker_linux_tier1,
       docker_linux_tier2,

CONTRIBUTING.md

@@ -3,6 +3,13 @@
 Welcome! If you are reading this document, it means you are interested in contributing
 to the `libc` crate.
 
+## v0.2 changes
+
+If you want to add your changes to v0.2, please submit them to the `libc-0.2` branch.
+If you want to add any breaking changes, it should be submitted to the main branch,
+which has changes for v0.3.
+We will support and make a new release for v0.2 until we make the first release of v0.3.
+
 ## Adding an API
 
 Want to use an API which currently isn't bound in `libc`? It's quite easy to add

README.md

@@ -16,6 +16,15 @@ More detailed information about the design of this library can be found in its
 
 [rfc]: https://github.com/rust-lang/rfcs/blob/HEAD/text/1291-promote-libc.md
 
+## v0.3 Roadmap
+
+The main branch is now for v0.3 which has some breaking changes.
+
+For v0.2, please submit PRs to the `libc-0.2` branch instead.
+We will stop making new v0.2 releases once we release v0.3 on crates.io.
+
+See the [tracking issue](https://github.com/rust-lang/libc/issues/3248) for details.
+
 ## Usage
 
 Add the following to your `Cargo.toml`:

libc-test/build.rs

@@ -3705,6 +3705,12 @@ fn test_linux(target: &str) {
             // https://github.com/torvalds/linux/commit/c05cd3645814724bdeb32a2b4d953b12bdea5f8c
             "xdp_umem_reg_v1" => true,
 
+            // Is defined in `<linux/sched/types.h>` but if this file is included at the same time
+            // as `<sched.h>`, the `struct sched_param` is defined twice, causing the compilation to
+            // fail. The problem doesn't seem to be present in more recent versions of the linux
+            // kernel so we can drop this and test the type once this new version is used in CI.
+            "sched_attr" => true,
+
             _ => false,
         }
     });
@@ -4123,6 +4129,14 @@ fn test_linux(target: &str) {
             | "PF_MCE_EARLY"
             | "PF_MEMALLOC_PIN" => true,
 
+            "SCHED_FLAG_KEEP_POLICY"
+            | "SCHED_FLAG_KEEP_PARAMS"
+            | "SCHED_FLAG_UTIL_CLAMP_MIN"
+            | "SCHED_FLAG_UTIL_CLAMP_MAX"
+            | "SCHED_FLAG_KEEP_ALL"
+            | "SCHED_FLAG_UTIL_CLAMP"
+            | "SCHED_FLAG_ALL" if musl => true, // Needs more recent linux headers.
+
             _ => false,
         }
     });

libc-test/semver/apple.txt

@@ -2216,6 +2216,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigwait
 sockaddr_ctl
 sockaddr_dl

libc-test/semver/dragonfly.txt

@@ -1538,6 +1538,7 @@ shmget
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo

libc-test/semver/freebsd.txt

@@ -2192,6 +2192,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo

libc-test/semver/fuchsia.txt

@@ -1377,8 +1377,10 @@ pthread_cancel
 pthread_condattr_getclock
 pthread_condattr_setclock
 pthread_getattr_np
+pthread_getname_np
 pthread_kill
 pthread_mutex_timedlock
+pthread_setname_np
 ptsname_r
 pwritev
 quotactl

libc-test/semver/netbsd.txt

@@ -1538,6 +1538,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo

libc-test/semver/openbsd.txt

@@ -1260,6 +1260,7 @@ shmget
 shmid_ds
 sigaltstack
 siginfo_t
+sigsuspend
 sigwait
 sockaddr_dl
 sockpeercred

src/fuchsia/mod.rs

@@ -3826,6 +3826,8 @@ extern "C" {
     pub fn pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> ::c_int;
     pub fn pthread_rwlockattr_init(attr: *mut pthread_rwlockattr_t) -> ::c_int;
     pub fn pthread_rwlockattr_destroy(attr: *mut pthread_rwlockattr_t) -> ::c_int;
+    pub fn pthread_getname_np(thread: ::pthread_t, name: *mut ::c_char, len: ::size_t) -> ::c_int;
+    pub fn pthread_setname_np(thread: ::pthread_t, name: *const ::c_char) -> ::c_int;
     pub fn strerror_r(errnum: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int;
 
     pub fn getsockopt(

src/psp.rs

@@ -1382,15 +1382,18 @@ s_paren! {
     pub struct SceUid(pub i32);
 
     #[repr(transparent)]
+    #[allow(dead_code)]
     pub struct SceMpeg(*mut *mut c_void);
 
     #[repr(transparent)]
+    #[allow(dead_code)]
     pub struct SceMpegStream(*mut c_void);
 
     #[repr(transparent)]
     pub struct Mp3Handle(pub i32);
 
     #[repr(transparent)]
+    #[allow(dead_code)]
     pub struct RegHandle(u32);
 }
 

src/teeos/mod.rs

@@ -62,7 +62,7 @@ pub struct _CLongDouble(pub u128);
 
 // long double in C means A float point value, which has 128bit length.
 // but some bit maybe not used, so the really length of long double could be 80(x86) or 128(power pc/IEEE)
-// this is different from f128(not stable and not inculded default) in Rust, so we use u128 for FFI(Rust to C).
+// this is different from f128(not stable and not included default) in Rust, so we use u128 for FFI(Rust to C).
 // this is unstable and will couse to memfault/data abort.
 pub type c_longdouble = _CLongDouble;
 

src/unix/bsd/mod.rs

@@ -761,6 +761,7 @@ extern "C" {
     )]
     #[cfg_attr(target_os = "netbsd", link_name = "__sigaltstack14")]
     pub fn sigaltstack(ss: *const stack_t, oss: *mut stack_t) -> ::c_int;
+    pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn sem_close(sem: *mut sem_t) -> ::c_int;
     pub fn getdtablesize() -> ::c_int;
     pub fn getgrnam_r(

src/unix/haiku/mod.rs

@@ -1782,6 +1782,7 @@ extern "C" {
         groupcount: *mut ::c_int,
     ) -> ::c_int;
     pub fn sigaltstack(ss: *const stack_t, oss: *mut stack_t) -> ::c_int;
+    pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn sem_close(sem: *mut sem_t) -> ::c_int;
     pub fn getdtablesize() -> ::c_int;
     pub fn getgrnam_r(