Auto merge of #413 - zenhack:CLONE_NEWCGROUP, r=alexcrichton

Define CLONE_NEWCGROUP

Should be fairly self explanatory.

Author: bors

ci/docker/aarch64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \

ci/docker/arm-unknown-linux-gnueabihf/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \

ci/docker/i686-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc-multilib libc6-dev ca-certificates

ci/docker/i686-unknown-linux-musl/Dockerfile

@@ -1,13 +1,21 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates
-RUN curl https://www.musl-libc.org/releases/musl-1.1.14.tar.gz | \
+# Below we're cross-compiling musl for i686 using the system compiler on an
+# x86_64 system. This is an awkward thing to be doing and so we have to jump
+# through a couple hoops to get musl to be happy. In particular:
+#
+# * We specifically pass -m32 in CFLAGS and override CC when running ./configure,
+#   since otherwise the script will fail to find a compiler.
+# * We manually unset CROSS_COMPILE when running make; otherwise the makefile
+#   will call the non-existent binary 'i686-ar'.
+RUN curl https://www.musl-libc.org/releases/musl-1.1.15.tar.gz | \
     tar xzf - && \
-    cd musl-1.1.14 && \
-    CFLAGS=-m32 ./configure --prefix=/musl-i686 --disable-shared --target=i686 && \
-    make install -j4 && \
+    cd musl-1.1.15 && \
+    CC=gcc CFLAGS=-m32 ./configure --prefix=/musl-i686 --disable-shared --target=i686 && \
+    make CROSS_COMPILE= install -j4 && \
     cd .. && \
-    rm -rf musl-1.1.14
+    rm -rf musl-1.1.15
 ENV PATH=$PATH:/musl-i686/bin:/rust/bin

ci/docker/mips-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

ci/docker/mips-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

ci/docker/mipsel-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

ci/docker/powerpc-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

ci/docker/powerpc64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

ci/docker/x86_64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates

ci/docker/x86_64-unknown-linux-musl/Dockerfile

@@ -1,13 +1,13 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates
-RUN curl https://www.musl-libc.org/releases/musl-1.1.14.tar.gz | \
+RUN curl https://www.musl-libc.org/releases/musl-1.1.15.tar.gz | \
     tar xzf - && \
-    cd musl-1.1.14 && \
+    cd musl-1.1.15 && \
     ./configure --prefix=/musl-x86_64 && \
     make install -j4 && \
     cd .. && \
-    rm -rf musl-1.1.14
+    rm -rf musl-1.1.15
 ENV PATH=$PATH:/musl-x86_64/bin:/rust/bin

ci/docker/x86_64-unknown-openbsd/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

src/unix/notbsd/linux/mips.rs

@@ -233,12 +233,10 @@ pub const POSIX_FADV_DONTNEED: ::c_int = 4;
 pub const POSIX_FADV_NOREUSE: ::c_int = 5;
 pub const POSIX_MADV_DONTNEED: ::c_int = 4;
 pub const _SC_2_C_VERSION: ::c_int = 96;
-pub const RUSAGE_THREAD: ::c_int = 1;
 pub const O_ACCMODE: ::c_int = 3;
 pub const O_DIRECT: ::c_int = 0x8000;
 pub const O_DIRECTORY: ::c_int = 0x10000;
 pub const O_NOFOLLOW: ::c_int = 0x20000;
-pub const RUSAGE_CHILDREN: ::c_int = -1;
 pub const ST_RELATIME: ::c_ulong = 4096;
 pub const NI_MAXHOST: ::socklen_t = 1025;
 

src/unix/notbsd/linux/mod.rs

@@ -248,6 +248,8 @@ pub const ABMON_10: ::nl_item = 0x20017;
 pub const ABMON_11: ::nl_item = 0x20018;
 pub const ABMON_12: ::nl_item = 0x20019;
 
+pub const CLONE_NEWCGROUP: ::c_int = 0x02000000;
+
 pub const MON_1: ::nl_item = 0x2001A;
 pub const MON_2: ::nl_item = 0x2001B;
 pub const MON_3: ::nl_item = 0x2001C;
@@ -279,6 +281,9 @@ pub const CODESET: ::nl_item = 14;
 
 pub const CRNCYSTR: ::nl_item = 0x4000F;
 
+pub const RUSAGE_THREAD: ::c_int = 1;
+pub const RUSAGE_CHILDREN: ::c_int = -1;
+
 pub const RADIXCHAR: ::nl_item = 0x10000;
 pub const THOUSEP: ::nl_item = 0x10001;
 

src/unix/notbsd/linux/musl/b32/arm.rs

@@ -332,7 +332,5 @@ pub const TIOCCONS: ::c_int = 0x541D;
 pub const SYS_gettid: ::c_long = 224;
 pub const SYS_perf_event_open: ::c_long = 364;
 
-pub const POSIX_MADV_DONTNEED: ::c_int = 0;
-pub const RUSAGE_CHILDREN: ::c_int = 1;
 pub const POLLWRNORM: ::c_short = 0x100;
 pub const POLLWRBAND: ::c_short = 0x200;

src/unix/notbsd/linux/musl/b32/asmjs.rs

@@ -331,7 +331,5 @@ pub const TIOCCONS: ::c_int = 0x541D;
 
 pub const SYS_gettid: ::c_long = 224; // Valid for arm (32-bit) and x86 (32-bit)
 
-pub const POSIX_MADV_DONTNEED: ::c_int = 0;
-pub const RUSAGE_CHILDREN: ::c_int = 1;
 pub const POLLWRNORM: ::c_short = 0x100;
 pub const POLLWRBAND: ::c_short = 0x200;

src/unix/notbsd/linux/musl/b32/mips.rs

@@ -340,7 +340,5 @@ pub const TIOCCONS: ::c_int = 0x80047478;
 pub const SYS_gettid: ::c_long = 4222;   // Valid for O32
 pub const SYS_perf_event_open: ::c_long = 4333;  // Valid for O32
 
-pub const POSIX_MADV_DONTNEED: ::c_int = 4;
-pub const RUSAGE_CHILDREN: ::c_int = !0;
 pub const POLLWRNORM: ::c_short = 0x4;
 pub const POLLWRBAND: ::c_short = 0x100;

src/unix/notbsd/linux/musl/b32/x86.rs

@@ -346,7 +346,5 @@ pub const TIOCCONS: ::c_int = 0x541D;
 pub const SYS_gettid: ::c_long = 224;
 pub const SYS_perf_event_open: ::c_long = 336;
 
-pub const POSIX_MADV_DONTNEED: ::c_int = 0;
-pub const RUSAGE_CHILDREN: ::c_int = 1;
 pub const POLLWRNORM: ::c_short = 0x100;
 pub const POLLWRBAND: ::c_short = 0x200;

src/unix/notbsd/linux/musl/b64/mod.rs

@@ -351,8 +351,6 @@ pub const TIOCMSET: ::c_int = 0x5418;
 pub const FIONREAD: ::c_int = 0x541B;
 pub const TIOCCONS: ::c_int = 0x541D;
 
-pub const POSIX_MADV_DONTNEED: ::c_int = 0;
-pub const RUSAGE_CHILDREN: ::c_int = 1;
 pub const POLLWRNORM: ::c_short = 0x100;
 pub const POLLWRBAND: ::c_short = 0x200;
 

src/unix/notbsd/linux/musl/mod.rs

@@ -77,6 +77,8 @@ pub const PTHREAD_STACK_MIN: ::size_t = 2048;
 pub const POSIX_FADV_DONTNEED: ::c_int = 4;
 pub const POSIX_FADV_NOREUSE: ::c_int = 5;
 
+pub const POSIX_MADV_DONTNEED: ::c_int = 4;
+
 pub const RLIM_INFINITY: ::rlim_t = !0;
 pub const RLIMIT_RTTIME: ::c_int = 15;
 pub const RLIMIT_NLIMITS: ::c_int = 16;

src/unix/notbsd/linux/other/mod.rs

@@ -360,11 +360,9 @@ pub const POSIX_FADV_DONTNEED: ::c_int = 4;
 pub const POSIX_FADV_NOREUSE: ::c_int = 5;
 pub const POSIX_MADV_DONTNEED: ::c_int = 4;
 pub const _SC_2_C_VERSION: ::c_int = 96;
-pub const RUSAGE_THREAD: ::c_int = 1;
 pub const O_ACCMODE: ::c_int = 3;
 pub const O_ASYNC: ::c_int = 0x2000;
 pub const O_NDELAY: ::c_int = 0x800;
-pub const RUSAGE_CHILDREN: ::c_int = -1;
 pub const ST_RELATIME: ::c_ulong = 4096;
 pub const NI_MAXHOST: ::socklen_t = 1025;
 

src/unix/notbsd/linux/s390x.rs

@@ -464,10 +464,8 @@ pub const TMP_MAX: ::c_uint = 238328;
 pub const FOPEN_MAX: ::c_uint = 16;
 pub const POSIX_MADV_DONTNEED: ::c_int = 4;
 pub const _SC_2_C_VERSION: ::c_int = 96;
-pub const RUSAGE_THREAD: ::c_int = 1;
 pub const O_ASYNC: ::c_int = 0x2000;
 pub const O_NDELAY: ::c_int = 0x800;
-pub const RUSAGE_CHILDREN: ::c_int = -1;
 pub const ST_RELATIME: ::c_ulong = 4096;
 pub const NI_MAXHOST: ::socklen_t = 1025;