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authorJosh Triplett <josh@joshtriplett.org>2020-08-09 17:01:21 -0700
committerJosh Triplett <josh@joshtriplett.org>2020-08-18 14:11:08 -0700
commite709b3f78a2ae3cb4cab1222c1848797ebbe4735 (patch)
treed59f386ac0faff47ee606aae761482bf622c78bf
parentab3c229140cc6a609c52fd732ea76bf69f9a5855 (diff)
downloadrust-libc-e709b3f78a2ae3cb4cab1222c1848797ebbe4735.tar.gz
Define P_PIDFD, used with waitid
Linux defines a waitid type `P_PIDFD`, for use with process file descriptors (`pidfd`). Add that constant. In libc-test, add linux/wait.h to the Linux-specific and Android-specific headers, to get the definition. Exclude it on Android and musl for now, though, as the versions in CI don't have it yet.
-rw-r--r--libc-test/build.rs9
-rw-r--r--src/unix/linux_like/mod.rs5
2 files changed, 14 insertions, 0 deletions
diff --git a/libc-test/build.rs b/libc-test/build.rs
index 753987a59b..637c46b2d3 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -1486,6 +1486,7 @@ fn test_android(target: &str) {
"linux/seccomp.h",
"linux/sched.h",
"linux/sockios.h",
+ "linux/wait.h",
}
@@ -1556,6 +1557,9 @@ fn test_android(target: &str) {
// FIXME: deprecated - removed in glibc 2.26
"SIGUNUSED" => true,
+ // Needs a newer Android SDK for the definition
+ "P_PIDFD" => true,
+
_ => false,
}
});
@@ -2442,6 +2446,7 @@ fn test_linux(target: &str) {
"linux/seccomp.h",
"linux/sockios.h",
"linux/vm_sockets.h",
+ "linux/wait.h",
"sys/auxv.h",
"sys/fanotify.h",
}
@@ -2626,6 +2631,10 @@ fn test_linux(target: &str) {
// Require Linux kernel 5.6:
"VMADDR_CID_LOCAL" => true,
+ // Defined in kernel headers but musl removes it; need musl 1.2 for definition in musl
+ // headers.
+ "P_PIDFD" => true,
+
_ => false,
}
});
diff --git a/src/unix/linux_like/mod.rs b/src/unix/linux_like/mod.rs
index c5394f69b8..a5005ead08 100644
--- a/src/unix/linux_like/mod.rs
+++ b/src/unix/linux_like/mod.rs
@@ -1034,6 +1034,11 @@ pub const SIGEV_THREAD: ::c_int = 2;
pub const P_ALL: idtype_t = 0;
pub const P_PID: idtype_t = 1;
pub const P_PGID: idtype_t = 2;
+cfg_if! {
+ if #[cfg(not(target_os = "emscripten"))] {
+ pub const P_PIDFD: idtype_t = 3;
+ }
+}
pub const UTIME_OMIT: c_long = 1073741822;
pub const UTIME_NOW: c_long = 1073741823;