rollup merge of #21754: semarie/openbsd-rebased

Hi.

Here a commit in order to add OpenBSD support to rust.

- tests status:
run-pass: test result: ok. 1879 passed; 0 failed; 24 ignored; 0 measured
run-fail: test result: ok. 81 passed; 0 failed; 5 ignored; 0 measured
compile-fail: test result: ok. 1634 passed; 0 failed; 22 ignored; 0 measured
run-pass-fulldeps: test result: ok. 22 passed; 0 failed; 1 ignored; 0 measured
compile-fail-fulldeps: test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured

- The current implementation of load_self function (src/libstd/sys/unix/os.rs) isn't optimal as under OpenBSD I haven't found a reliable method to get the filename of a running process. The current implementation is enought for bootstrapping purpose.

- I have disable `run-pass/tcp-stress.rs` test under openbsd. When run manually, the test pass, but when run under `compiletest`, it timeout and echo continuoulsy `Too many open files`.

- For building with jemalloc, a more recent version of jemalloc would be mandatory. See jemalloc/jemalloc#188 for more details.

Author: alexcrichton

configure

@@ -374,6 +374,10 @@ case $CFG_OSTYPE in
         CFG_OSTYPE=unknown-dragonfly
         ;;
 
+    OpenBSD)
+	CFG_OSTYPE=unknown-openbsd
+       ;;
+
     Darwin)
         CFG_OSTYPE=apple-darwin
         ;;

mk/cfg/x86_64-unknown-openbsd.mk

@@ -0,0 +1,26 @@
+# x86_64-pc-openbsd-elf configuration
+CC_x86_64-unknown-openbsd=$(CC)
+CXX_x86_64-unknown-openbsd=$(CXX)
+CPP_x86_64-unknown-openbsd=$(CPP)
+AR_x86_64-unknown-openbsd=$(AR)
+CFG_LIB_NAME_x86_64-unknown-openbsd=lib$(1).so
+CFG_STATIC_LIB_NAME_x86_64-unknown-openbsd=lib$(1).a
+CFG_LIB_GLOB_x86_64-unknown-openbsd=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_x86_64-unknown-openbsd=$(1)-*.dylib.dSYM
+CFG_JEMALLOC_CFLAGS_x86_64-unknown-openbsd := -m64 -I/usr/include $(CFLAGS)
+CFG_GCCISH_CFLAGS_x86_64-unknown-openbsd := -Wall -Werror -g -fPIC -m64 -I/usr/include $(CFLAGS)
+CFG_GCCISH_LINK_FLAGS_x86_64-unknown-openbsd := -shared -fPIC -g -pthread -m64
+CFG_GCCISH_DEF_FLAG_x86_64-unknown-openbsd := -Wl,--export-dynamic,--dynamic-list=
+CFG_GCCISH_PRE_LIB_FLAGS_x86_64-unknown-openbsd := -Wl,-whole-archive
+CFG_GCCISH_POST_LIB_FLAGS_x86_64-unknown-openbsd := -Wl,-no-whole-archive
+CFG_DEF_SUFFIX_x86_64-unknown-openbsd := .bsd.def
+CFG_LLC_FLAGS_x86_64-unknown-openbsd :=
+CFG_INSTALL_NAME_x86_64-unknown-openbsd =
+CFG_EXE_SUFFIX_x86_64-unknown-openbsd :=
+CFG_WINDOWSY_x86_64-unknown-openbsd :=
+CFG_UNIXY_x86_64-unknown-openbsd := 1
+CFG_PATH_MUNGE_x86_64-unknown-openbsd :=
+CFG_LDPATH_x86_64-unknown-openbsd :=
+CFG_RUN_x86_64-unknown-openbsd=$(2)
+CFG_RUN_TARG_x86_64-unknown-openbsd=$(call CFG_RUN_x86_64-unknown-openbsd,,$(2))
+CFG_GNU_TRIPLE_x86_64-unknown-openbsd := x86_64-unknown-openbsd

src/compiletest/util.rs

@@ -1,4 +1,4 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
 //
@@ -23,6 +23,7 @@ static OS_TABLE: &'static [(&'static str, &'static str)] = &[
     ("linux", "linux"),
     ("freebsd", "freebsd"),
     ("dragonfly", "dragonfly"),
+    ("openbsd", "openbsd"),
 ];
 
 pub fn get_os(triple: &str) -> &'static str {

src/doc/reference.md

@@ -2197,7 +2197,8 @@ The following configurations must be defined by the implementation:
   `"unix"` or `"windows"`. The value of this configuration option is defined
   as a configuration itself, like `unix` or `windows`.
 * `target_os = "..."`. Operating system of the target, examples include
-  `"win32"`, `"macos"`, `"linux"`, `"android"`, `"freebsd"` or `"dragonfly"`.
+  `"win32"`, `"macos"`, `"linux"`, `"android"`, `"freebsd"`, `"dragonfly"` or
+  `"openbsd"`.
 * `target_word_size = "..."`. Target word size in bits. This is set to `"32"`
   for targets with 32-bit pointers, and likewise set to `"64"` for 64-bit
   pointers.

src/etc/local_stage0.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+# Copyright 2014-2015 The Rust Project Developers. See the COPYRIGHT
 # file at the top-level directory of this distribution and at
 # http://rust-lang.org/COPYRIGHT.
 #
@@ -18,7 +18,7 @@ LIB_PREFIX=lib
 
 OS=`uname -s`
 case $OS in
-    ("Linux"|"FreeBSD"|"DragonFly")
+    ("Linux"|"FreeBSD"|"DragonFly"|"OpenBSD")
     BIN_SUF=
     LIB_SUF=.so
     ;;

src/etc/snapshot.py

@@ -1,4 +1,4 @@
-# Copyright 2011-2014 The Rust Project Developers. See the COPYRIGHT
+# Copyright 2011-2015 The Rust Project Developers. See the COPYRIGHT
 # file at the top-level directory of this distribution and at
 # http://rust-lang.org/COPYRIGHT.
 #
@@ -46,6 +46,7 @@ def scrub(b):
         "winnt": ["bin/rustc.exe"],
         "freebsd": ["bin/rustc"],
         "dragonfly": ["bin/rustc"],
+        "openbsd": ["bin/rustc"],
         }
 
 winnt_runtime_deps_32 = ["libgcc_s_dw2-1.dll", "libstdc++-6.dll"]
@@ -100,6 +101,8 @@ def get_kernel(triple):
         return "freebsd"
     if os_name == "dragonfly":
         return "dragonfly"
+    if os_name == "openbsd":
+        return "openbsd"
     return "linux"
 
 

src/libbacktrace/configure

@@ -9332,7 +9332,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       ;;
 
     # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
-    freebsd* | dragonfly*)
+    freebsd* | dragonfly* | openbsd*)
       archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
       hardcode_libdir_flag_spec='-R$libdir'
       hardcode_direct=yes