Change default Solaris x86 target to x86_64-pc-solaris

compiler/rustc_session/src/config.rs

@@ -1536,7 +1536,7 @@ fn parse_target_triple(matches: &getopts::Matches, error_format: ErrorOutputType
                 early_error(error_format, &format!("target file {:?} does not exist", path))
             })
         }
-        Some(target) => TargetTriple::from_alias(target),
+        Some(target) => TargetTriple::TargetTriple(target),
         _ => TargetTriple::from_triple(host_triple()),
     }
 }

compiler/rustc_target/src/spec/mod.rs

@@ -736,9 +736,8 @@ supported_targets! {
     ("armv7r-none-eabi", armv7r_none_eabi),
     ("armv7r-none-eabihf", armv7r_none_eabihf),
 
-    // `x86_64-pc-solaris` is an alias for `x86_64_sun_solaris` for backwards compatibility reasons.
-    // (See <https://github.com/rust-lang/rust/issues/40531>.)
-    ("x86_64-sun-solaris", "x86_64-pc-solaris", x86_64_sun_solaris),
+    ("x86_64-pc-solaris", x86_64_pc_solaris),
+    ("x86_64-sun-solaris", x86_64_sun_solaris),
     ("sparcv9-sun-solaris", sparcv9_sun_solaris),
 
     ("x86_64-unknown-illumos", x86_64_unknown_illumos),
@@ -1986,24 +1985,6 @@ impl TargetTriple {
         Ok(TargetTriple::TargetPath(canonicalized_path))
     }
 
-    /// Creates a target triple from its alias
-    pub fn from_alias(triple: String) -> Self {
-        macro_rules! target_aliases {
-            ( $(($alias:literal, $target:literal ),)+ ) => {
-                match triple.as_str() {
-                    $( $alias => TargetTriple::from_triple($target), )+
-                    _ => TargetTriple::TargetTriple(triple),
-                }
-            }
-        }
-
-        target_aliases! {
-            // `x86_64-pc-solaris` is an alias for `x86_64_sun_solaris` for backwards compatibility reasons.
-            // (See <https://github.com/rust-lang/rust/issues/40531>.)
-            ("x86_64-pc-solaris", "x86_64-sun-solaris"),
-        }
-    }
-
     /// Returns a string triple for this target.
     ///
     /// If this target is a path, the file name (without extension) is returned.

compiler/rustc_target/src/spec/solaris_base.rs

@@ -3,7 +3,6 @@ use crate::spec::TargetOptions;
 pub fn opts() -> TargetOptions {
     TargetOptions {
         os: "solaris".to_string(),
-        vendor: "sun".to_string(),
         dynamic_linking: true,
         executables: true,
         has_rpath: true,

compiler/rustc_target/src/spec/sparcv9_sun_solaris.rs

@@ -7,6 +7,7 @@ pub fn target() -> Target {
     base.pre_link_args.insert(LinkerFlavor::Gcc, vec!["-m64".to_string()]);
     // llvm calls this "v9"
     base.cpu = "v9".to_string();
+    base.vendor = "sun".to_string();
     base.max_atomic_width = Some(64);
 
     Target {

compiler/rustc_target/src/spec/x86_64_pc_solaris.rs

@@ -0,0 +1,19 @@
+use crate::spec::{LinkerFlavor, StackProbeType, Target};
+
+pub fn target() -> Target {
+    let mut base = super::solaris_base::opts();
+    base.pre_link_args.insert(LinkerFlavor::Gcc, vec!["-m64".to_string()]);
+    base.cpu = "x86-64".to_string();
+    base.vendor = "pc".to_string();
+    base.max_atomic_width = Some(64);
+    base.stack_probes = StackProbeType::InlineOrCall { min_llvm_version_for_inline: (11, 0, 1) };
+
+    Target {
+        llvm_target: "x86_64-pc-solaris".to_string(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+            .to_string(),
+        arch: "x86_64".to_string(),
+        options: base,
+    }
+}

compiler/rustc_target/src/spec/x86_64_sun_solaris.rs

@@ -4,6 +4,7 @@ pub fn target() -> Target {
     let mut base = super::solaris_base::opts();
     base.pre_link_args.insert(LinkerFlavor::Gcc, vec!["-m64".to_string()]);
     base.cpu = "x86-64".to_string();
+    base.vendor = "sun".to_string();
     base.max_atomic_width = Some(64);
     base.stack_probes = StackProbeType::InlineOrCall { min_llvm_version_for_inline: (11, 0, 1) };
 

src/bootstrap/bootstrap.py

@@ -240,13 +240,16 @@ def default_build_triple(verbose):
         else:
             ostype = 'unknown-linux-gnu'
     elif ostype == 'SunOS':
-        ostype = 'sun-solaris'
+        ostype = 'pc-solaris'
         # On Solaris, uname -m will return a machine classification instead
         # of a cpu type, so uname -p is recommended instead.  However, the
         # output from that option is too generic for our purposes (it will
         # always emit 'i386' on x86/amd64 systems).  As such, isainfo -k
         # must be used instead.
         cputype = require(['isainfo', '-k']).decode(default_encoding)
+        # sparc cpus have sun as a target vendor
+        if 'sparc' in cputype:
+            ostype = 'sun-solaris'
     elif ostype.startswith('MINGW'):
         # msys' `uname` does not print gcc configuration, but prints msys
         # configuration. so we cannot believe `uname -m`: