[PATCH 08/14] rust: Implement TARGET_RUST_OS_INFO for *-*-openbsd*

[arthur . cohen]

From: Iain Buclaw <ibuc...@gdcproject.org>

gcc/ChangeLog:

        * config.gcc (*-*-openbsd*): Set rust_target_objs and
        target_has_targetrustm.
        * config/t-openbsd (openbsd-rust.o): New rule.
        * config/openbsd-rust.cc: New file.
---
 gcc/config.gcc             |  2 ++
 gcc/config/openbsd-rust.cc | 40 ++++++++++++++++++++++++++++++++++++++
 gcc/config/t-openbsd       |  5 +++++
 3 files changed, 47 insertions(+)
 create mode 100644 gcc/config/openbsd-rust.cc

diff --git a/gcc/config.gcc b/gcc/config.gcc
index ad4c01dfc89..f2b4381362c 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -990,6 +990,8 @@ case ${target} in
   esac
   d_target_objs="${d_target_objs} openbsd-d.o"
   target_has_targetdm=yes
+  rust_target_objs="${rust_target_objs} openbsd-rust.o"
+  target_has_targetrustm=yes
   ;;
 *-*-phoenix*)
   gas=yes
diff --git a/gcc/config/openbsd-rust.cc b/gcc/config/openbsd-rust.cc
new file mode 100644
index 00000000000..c4721ea18e9
--- /dev/null
+++ b/gcc/config/openbsd-rust.cc
@@ -0,0 +1,40 @@
+/* OpenBSD 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 OpenBSD targets.  */
+
+static void
+openbsd_rust_target_os_info (void)
+{
+  rust_add_target_info ("target_family", "unix");
+  rust_add_target_info ("target_os", "openbsd");
+  rust_add_target_info ("target_vendor", "unknown");
+  rust_add_target_info ("target_env", "");
+}
+
+#undef TARGET_RUST_OS_INFO
+#define TARGET_RUST_OS_INFO openbsd_rust_target_os_info
+
+struct gcc_targetrustm targetrustm = TARGETRUSTM_INITIALIZER;
diff --git a/gcc/config/t-openbsd b/gcc/config/t-openbsd
index 69643f521fb..3b625d62b30 100644
--- a/gcc/config/t-openbsd
+++ b/gcc/config/t-openbsd
@@ -5,3 +5,8 @@ USER_H = $(EXTRA_HEADERS)
 openbsd-d.o: $(srcdir)/config/openbsd-d.cc
        $(COMPILE) $<
        $(POSTCOMPILE)
+
+# OpenBSD-specific Rust support.
+openbsd-rust.o: $(srcdir)/config/openbsd-rust.cc
+       $(COMPILE) $<
+       $(POSTCOMPILE)
-- 
2.42.0

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