Update libc crate to 0.2.57

This change updates the libc crate to version 0.2.57.

Import subrepo libc/:libc at cdc48ea36d8d2890dba38e8f779001e6855339a2

4 files changed, 44 insertions, 16 deletions

diff --git a/libc/src/unix/notbsd/linux/musl/b64/aarch64.rs b/libc/src/unix/notbsd/linux/musl/b64/aarch64.rs
index f01a5c4..16cb46d 100644
--- a/libc/src/unix/notbsd/linux/musl/b64/aarch64.rs
+++ b/libc/src/unix/notbsd/linux/musl/b64/aarch64.rs
@@ -71,10 +71,22 @@ pub const MINSIGSTKSZ: ::size_t = 6144;
 pub const SIGSTKSZ: ::size_t = 12288;
 
 #[doc(hidden)]
-pub const PF_MAX: ::c_int = 43;
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+pub const PF_MAX: ::c_int = 45;
 #[doc(hidden)]
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+#[allow(deprecated)]
 pub const AF_MAX: ::c_int = PF_MAX;
 
+pub const MADV_SOFT_OFFLINE: ::c_int = 101;
 pub const SYS_io_setup: ::c_long = 0;
 pub const SYS_io_destroy: ::c_long = 1;
 pub const SYS_io_submit: ::c_long = 2;
@@ -340,7 +352,7 @@ pub const SYS_pkey_mprotect: ::c_long = 288;
 pub const SYS_pkey_alloc: ::c_long = 289;
 pub const SYS_pkey_free: ::c_long = 290;
 
-pub const RLIMIT_NLIMITS: ::c_int = 16;
+pub const RLIMIT_NLIMITS: ::c_int = 15;
 pub const TIOCINQ: ::c_int = ::FIONREAD;
 pub const MCL_CURRENT: ::c_int = 0x0001;
 pub const MCL_FUTURE: ::c_int = 0x0002;
diff --git a/libc/src/unix/notbsd/linux/musl/b64/mod.rs b/libc/src/unix/notbsd/linux/musl/b64/mod.rs
index 043ca8d..34b3766 100644
--- a/libc/src/unix/notbsd/linux/musl/b64/mod.rs
+++ b/libc/src/unix/notbsd/linux/musl/b64/mod.rs
@@ -127,17 +127,6 @@ s! {
         pub _pad: [::c_int; 29],
         _align: [usize; 0],
     }
-
-    pub struct termios2 {
-        pub c_iflag: ::tcflag_t,
-        pub c_oflag: ::tcflag_t,
-        pub c_cflag: ::tcflag_t,
-        pub c_lflag: ::tcflag_t,
-        pub c_line: ::cc_t,
-        pub c_cc: [::cc_t; 19],
-        pub c_ispeed: ::speed_t,
-        pub c_ospeed: ::speed_t,
-    }
 }
 
 pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
diff --git a/libc/src/unix/notbsd/linux/musl/b64/powerpc64.rs b/libc/src/unix/notbsd/linux/musl/b64/powerpc64.rs
index 04eba48..4a8df27 100644
--- a/libc/src/unix/notbsd/linux/musl/b64/powerpc64.rs
+++ b/libc/src/unix/notbsd/linux/musl/b64/powerpc64.rs
@@ -60,6 +60,7 @@ s! {
     }
 }
 
+pub const MADV_SOFT_OFFLINE: ::c_int = 101;
 pub const MAP_32BIT: ::c_int = 0x0040;
 pub const O_DIRECT: ::c_int = 0x20000;
 pub const O_DIRECTORY: ::c_int = 0x4000;
@@ -70,8 +71,19 @@ pub const SIGSTKSZ: ::size_t = 10240;
 pub const MINSIGSTKSZ: ::size_t = 4096;
 
 #[doc(hidden)]
-pub const AF_MAX: ::c_int = 43;
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+pub const AF_MAX: ::c_int = 45;
 #[doc(hidden)]
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+#[allow(deprecated)]
 pub const PF_MAX: ::c_int = AF_MAX;
 
 // Syscall table
diff --git a/libc/src/unix/notbsd/linux/musl/b64/x86_64.rs b/libc/src/unix/notbsd/linux/musl/b64/x86_64.rs
index 94c5d88..df0ce40 100644
--- a/libc/src/unix/notbsd/linux/musl/b64/x86_64.rs
+++ b/libc/src/unix/notbsd/linux/musl/b64/x86_64.rs
@@ -483,21 +483,36 @@ pub const ES: ::c_int = 24;
 pub const FS: ::c_int = 25;
 pub const GS: ::c_int = 26;
 
+pub const MADV_SOFT_OFFLINE: ::c_int = 101;
 pub const MAP_32BIT: ::c_int = 0x0040;
 pub const O_DIRECT: ::c_int = 0x4000;
 pub const O_DIRECTORY: ::c_int = 0x10000;
 pub const O_LARGEFILE: ::c_int = 0;
 pub const O_NOFOLLOW: ::c_int = 0x20000;
 
+pub const TIOCGRS485: ::c_int = 0x542E;
+pub const TIOCSRS485: ::c_int = 0x542F;
+
 pub const SIGSTKSZ: ::size_t = 8192;
 pub const MINSIGSTKSZ: ::size_t = 2048;
 
 #[doc(hidden)]
-pub const AF_MAX: ::c_int = 42;
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+pub const AF_MAX: ::c_int = 45;
 #[doc(hidden)]
+#[deprecated(
+    since = "0.2.55",
+    note = "If you are using this report to: \
+            https://github.com/rust-lang/libc/issues/665"
+)]
+#[allow(deprecated)]
 pub const PF_MAX: ::c_int = AF_MAX;
 
-pub const RLIMIT_NLIMITS: ::c_int = 16;
+pub const RLIMIT_NLIMITS: ::c_int = 15;
 pub const TIOCINQ: ::c_int = ::FIONREAD;
 pub const MCL_CURRENT: ::c_int = 0x0001;
 pub const MCL_FUTURE: ::c_int = 0x0002;