Rollup merge of #30776 - antonblanchard:powerpc64_merge, r=alexcrichton

This adds support for big endian and little endian PowerPC64.
make check runs clean apart from one big endian backtrace issue.

configure

@@ -499,13 +499,18 @@ case $CFG_CPUTYPE in
         CFG_CPUTYPE=aarch64
         ;;
 
-    # At some point, when ppc64[le] support happens, this will need to do
-    # something clever. For now it's safe to assume that we're only ever
-    # interested in building 32 bit.
-    powerpc | ppc | ppc64)
+    powerpc | ppc)
         CFG_CPUTYPE=powerpc
         ;;
 
+    powerpc64 | ppc64)
+        CFG_CPUTYPE=powerpc64
+        ;;
+
+    powerpc64le | ppc64le)
+        CFG_CPUTYPE=powerpc64le
+        ;;
+
     x86_64 | x86-64 | x64 | amd64)
         CFG_CPUTYPE=x86_64
         ;;

mk/cfg/powerpc64-unknown-linux-gnu.mk

@@ -0,0 +1,24 @@
+# powerpc64-unknown-linux-gnu configuration
+CROSS_PREFIX_powerpc64-unknown-linux-gnu=powerpc64-linux-gnu-
+CC_powerpc64-unknown-linux-gnu=$(CC)
+CXX_powerpc64-unknown-linux-gnu=$(CXX)
+CPP_powerpc64-unknown-linux-gnu=$(CPP)
+AR_powerpc64-unknown-linux-gnu=$(AR)
+CFG_LIB_NAME_powerpc64-unknown-linux-gnu=lib$(1).so
+CFG_STATIC_LIB_NAME_powerpc64-unknown-linux-gnu=lib$(1).a
+CFG_LIB_GLOB_powerpc64-unknown-linux-gnu=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_powerpc64-unknown-linux-gnu=lib$(1)-*.dylib.dSYM
+CFG_CFLAGS_powerpc64-unknown-linux-gnu := -m64 $(CFLAGS)
+CFG_GCCISH_CFLAGS_powerpc64-unknown-linux-gnu := -Wall -Werror -g -fPIC -m64 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_powerpc64-unknown-linux-gnu := -fno-rtti $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_powerpc64-unknown-linux-gnu := -shared -fPIC -ldl -pthread  -lrt -g -m64
+CFG_GCCISH_DEF_FLAG_powerpc64-unknown-linux-gnu := -Wl,--export-dynamic,--dynamic-list=
+CFG_LLC_FLAGS_powerpc64-unknown-linux-gnu :=
+CFG_INSTALL_NAME_powerpc64-unknown-linux-gnu =
+CFG_EXE_SUFFIX_powerpc64-unknown-linux-gnu =
+CFG_WINDOWSY_powerpc64-unknown-linux-gnu :=
+CFG_UNIXY_powerpc64-unknown-linux-gnu := 1
+CFG_LDPATH_powerpc64-unknown-linux-gnu :=
+CFG_RUN_powerpc64-unknown-linux-gnu=$(2)
+CFG_RUN_TARG_powerpc64-unknown-linux-gnu=$(call CFG_RUN_powerpc64-unknown-linux-gnu,,$(2))
+CFG_GNU_TRIPLE_powerpc64-unknown-linux-gnu := powerpc64-unknown-linux-gnu

mk/cfg/powerpc64le-unknown-linux-gnu.mk

@@ -0,0 +1,24 @@
+# powerpc64le-unknown-linux-gnu configuration
+CROSS_PREFIX_powerpc64le-unknown-linux-gnu=powerpc64le-linux-gnu-
+CC_powerpc64le-unknown-linux-gnu=$(CC)
+CXX_powerpc64le-unknown-linux-gnu=$(CXX)
+CPP_powerpc64le-unknown-linux-gnu=$(CPP)
+AR_powerpc64le-unknown-linux-gnu=$(AR)
+CFG_LIB_NAME_powerpc64le-unknown-linux-gnu=lib$(1).so
+CFG_STATIC_LIB_NAME_powerpc64le-unknown-linux-gnu=lib$(1).a
+CFG_LIB_GLOB_powerpc64le-unknown-linux-gnu=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_powerpc64le-unknown-linux-gnu=lib$(1)-*.dylib.dSYM
+CFG_CFLAGS_powerpc64le-unknown-linux-gnu := -m64 $(CFLAGS)
+CFG_GCCISH_CFLAGS_powerpc64le-unknown-linux-gnu := -Wall -Werror -g -fPIC -m64 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_powerpc64le-unknown-linux-gnu := -fno-rtti $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_powerpc64le-unknown-linux-gnu := -shared -fPIC -ldl -pthread  -lrt -g -m64
+CFG_GCCISH_DEF_FLAG_powerpc64le-unknown-linux-gnu := -Wl,--export-dynamic,--dynamic-list=
+CFG_LLC_FLAGS_powerpc64le-unknown-linux-gnu :=
+CFG_INSTALL_NAME_powerpc64le-unknown-linux-gnu =
+CFG_EXE_SUFFIX_powerpc64le-unknown-linux-gnu =
+CFG_WINDOWSY_powerpc64le-unknown-linux-gnu :=
+CFG_UNIXY_powerpc64le-unknown-linux-gnu := 1
+CFG_LDPATH_powerpc64le-unknown-linux-gnu :=
+CFG_RUN_powerpc64le-unknown-linux-gnu=$(2)
+CFG_RUN_TARG_powerpc64le-unknown-linux-gnu=$(call CFG_RUN_powerpc64le-unknown-linux-gnu,,$(2))
+CFG_GNU_TRIPLE_powerpc64le-unknown-linux-gnu := powerpc64le-unknown-linux-gnu

src/compiletest/util.rs

@@ -38,6 +38,8 @@ const ARCH_TABLE: &'static [(&'static str, &'static str)] = &[
     ("mips", "mips"),
     ("msp430", "msp430"),
     ("powerpc", "powerpc"),
+    ("powerpc64", "powerpc64"),
+    ("powerpc64le", "powerpc64le"),
     ("s390x", "systemz"),
     ("sparc", "sparc"),
     ("x86_64", "x86_64"),

src/doc/reference.md

@@ -2044,7 +2044,7 @@ The following configurations must be defined by the implementation:
   production.  For example, it controls the behavior of the standard library's
   `debug_assert!` macro.
 * `target_arch = "..."` - Target CPU architecture, such as `"x86"`, `"x86_64"`
-  `"mips"`, `"powerpc"`, `"arm"`, or `"aarch64"`.
+  `"mips"`, `"powerpc"`, `"powerpc64"`, `"powerpc64le"`, `"arm"`, or `"aarch64"`.
 * `target_endian = "..."` - Endianness of the target CPU, either `"little"` or
   `"big"`.
 * `target_env = ".."` - An option provided by the compiler by default

src/liballoc_jemalloc/lib.rs

@@ -55,7 +55,9 @@ extern "C" {
 const MIN_ALIGN: usize = 8;
 #[cfg(all(any(target_arch = "x86",
               target_arch = "x86_64",
-              target_arch = "aarch64")))]
+              target_arch = "aarch64",
+              target_arch = "powerpc64",
+              target_arch = "powerpc64le")))]
 const MIN_ALIGN: usize = 16;
 
 // MALLOCX_ALIGN(a) macro

src/liballoc_system/lib.rs

@@ -29,7 +29,9 @@ extern crate libc;
               target_arch = "arm",
               target_arch = "mips",
               target_arch = "mipsel",
-              target_arch = "powerpc")))]
+              target_arch = "powerpc",
+              target_arch = "powerpc64",
+              target_arch = "powerpc64le")))]
 const MIN_ALIGN: usize = 8;
 #[cfg(all(any(target_arch = "x86_64",
               target_arch = "aarch64")))]

src/librustc_back/target/mod.rs

@@ -80,7 +80,7 @@ pub struct Target {
     /// Vendor name to use for conditional compilation.
     pub target_vendor: String,
     /// Architecture to use for ABI considerations. Valid options: "x86", "x86_64", "arm",
-    /// "aarch64", "mips", and "powerpc". "mips" includes "mipsel".
+    /// "aarch64", "mips", "powerpc", "powerpc64" and "powerpc64le". "mips" includes "mipsel".
     pub arch: String,
     /// Optional settings with defaults.
     pub options: TargetOptions,
@@ -413,6 +413,8 @@ impl Target {
             mips_unknown_linux_gnu,
             mipsel_unknown_linux_gnu,
             powerpc_unknown_linux_gnu,
+            powerpc64_unknown_linux_gnu,
+            powerpc64le_unknown_linux_gnu,
             arm_unknown_linux_gnueabi,
             arm_unknown_linux_gnueabihf,
             aarch64_unknown_linux_gnu,

src/librustc_back/target/powerpc64_unknown_linux_gnu.rs

@@ -0,0 +1,27 @@
+// Copyright 2012-2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::Target;
+
+pub fn target() -> Target {
+    let mut base = super::linux_base::opts();
+    base.pre_link_args.push("-m64".to_string());
+
+    Target {
+        llvm_target: "powerpc64-unknown-linux-gnu".to_string(),
+        target_endian: "big".to_string(),
+        target_pointer_width: "64".to_string(),
+        arch: "powerpc64".to_string(),
+        target_os: "linux".to_string(),
+        target_env: "gnu".to_string(),
+        target_vendor: "unknown".to_string(),
+        options: base,
+    }
+}

src/librustc_back/target/powerpc64le_unknown_linux_gnu.rs

@@ -0,0 +1,27 @@
+// Copyright 2012-2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::Target;
+
+pub fn target() -> Target {
+    let mut base = super::linux_base::opts();
+    base.pre_link_args.push("-m64".to_string());
+
+    Target {
+        llvm_target: "powerpc64le-unknown-linux-gnu".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "64".to_string(),
+        arch: "powerpc64le".to_string(),
+        target_os: "linux".to_string(),
+        target_env: "gnu".to_string(),
+        target_vendor: "unknown".to_string(),
+        options: base,
+    }
+}

src/librustc_trans/trans/cabi.rs

@@ -19,6 +19,7 @@ use trans::cabi_x86_win64;
 use trans::cabi_arm;
 use trans::cabi_aarch64;
 use trans::cabi_powerpc;
+use trans::cabi_powerpc64;
 use trans::cabi_mips;
 use trans::type_::Type;
 
@@ -127,6 +128,7 @@ pub fn compute_abi_info(ccx: &CrateContext,
         },
         "mips" => cabi_mips::compute_abi_info(ccx, atys, rty, ret_def),
         "powerpc" => cabi_powerpc::compute_abi_info(ccx, atys, rty, ret_def),
+        "powerpc64" | "powerpc64le" => cabi_powerpc64::compute_abi_info(ccx, atys, rty, ret_def),
         a => ccx.sess().fatal(&format!("unrecognized arch \"{}\" in target specification", a)
                               ),
     }