[gcc r14-4204] rust: Implement TARGET_RUST_OS_INFO for *-*-dragonfly*

[gcc r14-4204] rust: Implement TARGET_RUST_OS_INFO for *-*-dragonfly*

[Arthur Cohen]

https://gcc.gnu.org/g:595d949f7cae5518f84eed80803c62ad6a8e2496

commit r14-4204-g595d949f7cae5518f84eed80803c62ad6a8e2496
Author: Iain Buclaw <ibuclaw@gdcproject.org>
Date:   Thu Oct 13 10:12:44 2022 +0200

    rust: Implement TARGET_RUST_OS_INFO for *-*-dragonfly*
    
    gcc/ChangeLog:
    
            * config.gcc (*-*-dragonfly*): Set rust_target_objs and
            target_has_targetrustm.
            * config/t-dragonfly (dragonfly-rust.o): New rule.
            * config/dragonfly-rust.cc: New file.

Diff:
---
 gcc/config.gcc               |  2 ++
 gcc/config/dragonfly-rust.cc | 40 ++++++++++++++++++++++++++++++++++++++++
 gcc/config/t-dragonfly       |  4 ++++
 3 files changed, 46 insertions(+)

diff --git a/gcc/config.gcc b/gcc/config.gcc
index ec4a4083e83..16c0bf0ea9f 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -814,6 +814,8 @@ case ${target} in
   d_target_objs="${d_target_objs} dragonfly-d.o"
   tmake_file="${tmake_file} t-dragonfly"
   target_has_targetdm=yes
+  rust_target_objs="${rust_target_objs} dragonfly-rust.o"
+  target_has_targetrustm=yes
   ;;
 *-*-freebsd*)
   # This is the generic ELF configuration of FreeBSD.  Later
diff --git a/gcc/config/dragonfly-rust.cc b/gcc/config/dragonfly-rust.cc
new file mode 100644
index 00000000000..ce501d1b6fd
--- /dev/null
+++ b/gcc/config/dragonfly-rust.cc
@@ -0,0 +1,40 @@
+/* DragonFly support needed only by Rust front-end.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tm_rust.h"
+#include "rust/rust-target.h"
+#include "rust/rust-target-def.h"
+
+/* Implement TARGET_RUST_OS_INFO for DragonFly targets.  */
+
+static void
+dragonfly_rust_target_os_info (void)
+{
+  rust_add_target_info ("target_family", "unix");
+  rust_add_target_info ("target_os", "dragonfly");
+  rust_add_target_info ("target_vendor", "unknown");
+  rust_add_target_info ("target_env", "");
+}
+
+#undef TARGET_RUST_OS_INFO
+#define TARGET_RUST_OS_INFO dragonfly_rust_target_os_info
+
+struct gcc_targetrustm targetrustm = TARGETRUSTM_INITIALIZER;
diff --git a/gcc/config/t-dragonfly b/gcc/config/t-dragonfly
index b80587dd0d3..e60fa18f116 100644
--- a/gcc/config/t-dragonfly
+++ b/gcc/config/t-dragonfly
@@ -19,3 +19,7 @@
 dragonfly-d.o: $(srcdir)/config/dragonfly-d.cc
 	$(COMPILE) $<
 	$(POSTCOMPILE)
+
+dragonfly-rust.o: $(srcdir)/config/dragonfly-rust.cc
+	$(COMPILE) $<
+	$(POSTCOMPILE)