1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/config/loongarch/gnu-user.h b/gcc/config/loongarch/gnu-user.h
new file mode 100644
index 0000000..664dc92
--- /dev/null
+++ b/gcc/config/loongarch/gnu-user.h
@@ -0,0 +1,80 @@
+/* Definitions for LoongArch systems using GNU (glibc-based) userspace,
+   or other userspace with libc derived from glibc.
+   Copyright (C) 2021-2022 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+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/>.  */
+
+/* Define the size of the wide character type.  */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+
+/* GNU-specific SPEC definitions.  */
+#define GNU_USER_LINK_EMULATION "elf" ABI_GRLEN_SPEC "loongarch"
+
+#undef GLIBC_DYNAMIC_LINKER
+#define GLIBC_DYNAMIC_LINKER \
+  "/lib" ABI_GRLEN_SPEC "/ld-linux-loongarch-" ABI_SPEC ".so.1"
+
+#undef MUSL_DYNAMIC_LINKER
+#define MUSL_DYNAMIC_LINKER \
+  "/lib" ABI_GRLEN_SPEC "/ld-musl-loongarch-" ABI_SPEC ".so.1"
+
+#undef GNU_USER_TARGET_LINK_SPEC
+#define GNU_USER_TARGET_LINK_SPEC \
+  "%{G*} %{shared} -m " GNU_USER_LINK_EMULATION \
+  "%{!shared: %{static} %{!static: %{rdynamic:-export-dynamic} " \
+  "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+
+
+/* Similar to standard Linux, but adding -ffast-math support.  */
+#undef GNU_USER_TARGET_MATHFILE_SPEC
+#define GNU_USER_TARGET_MATHFILE_SPEC \
+  "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
+
+#undef LIB_SPEC
+#define LIB_SPEC GNU_USER_TARGET_LIB_SPEC
+
+#undef LINK_SPEC
+#define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  GNU_USER_TARGET_MATHFILE_SPEC " " \
+  GNU_USER_TARGET_ENDFILE_SPEC
+
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
+/* A standard GNU/Linux mapping.  On most targets, it is included in
+   CC1_SPEC itself by config/linux.h, but loongarch.h overrides CC1_SPEC
+   and provides this hook instead.  */
+#undef SUBTARGET_CC1_SPEC
+#define SUBTARGET_CC1_SPEC GNU_USER_TARGET_CC1_SPEC
+
+#define TARGET_OS_CPP_BUILTINS() \
+  do \
+    { \
+      GNU_USER_TARGET_OS_CPP_BUILTINS (); \
+      /* The GNU C++ standard library requires this.  */ \
+      if (c_dialect_cxx ()) \
+       builtin_define ("_GNU_SOURCE"); \
+    } \
+  while (0)