gcc/ChangeLog:
* config.gcc: add loongarch*-elf target.
* config/loongarch/elf.h: New file.
Link against newlib by default.
libgcc/ChangeLog:
* config.host: add loongarch*-elf target.
---
gcc/config.gcc | 21 ++++++++++++---
gcc/config/loongarch/elf.h | 52 ++++++++++++++++++++++++++++++++++++++
libgcc/config.host | 9 +++++--
3 files changed, 76 insertions(+), 6 deletions(-)
create mode 100644 gcc/config/loongarch/elf.h
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 9412f73fe35..0661f13ebc8 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2491,6 +2491,18 @@ loongarch*-*-linux*)
gcc_cv_initfini_array=yes
;;
+loongarch*-*-elf*)
+ tm_file="elfos.h newlib-stdint.h ${tm_file}"
+ tm_file="${tm_file} loongarch/elf.h loongarch/linux.h"
+ tmake_file="${tmake_file} loongarch/t-linux"
+ gnu_ld=yes
+ gas=yes
+
+ # For .init_array support. The configure script cannot always
+ # automatically detect that GAS supports it, yet we require it.
+ gcc_cv_initfini_array=yes
+ ;;
+
mips*-*-netbsd*) # NetBSD/mips, either endian.
target_cpu_default="MASK_ABICALLS"
tm_file="elfos.h ${tm_file} mips/elf.h ${nbsd_tm_file} mips/netbsd.h"
@@ -4904,16 +4916,16 @@ case "${target}" in
# Infer ABI from the triplet.
case ${target} in
- loongarch64-*-*-*f64)
+ loongarch64-*f64)
abi_pattern="lp64d"
;;
- loongarch64-*-*-*f32)
+ loongarch64-*f32)
abi_pattern="lp64f"
;;
- loongarch64-*-*-*sf)
+ loongarch64-*sf)
abi_pattern="lp64s"
;;
- loongarch64-*-*-*)
+ loongarch64-*)
abi_pattern="lp64[dfs]"
abi_default="lp64d"
;;
@@ -4930,6 +4942,7 @@ case "${target}" in
case ${target} in
*-linux-gnu*) triplet_os="linux-gnu";;
*-linux-musl*) triplet_os="linux-musl";;
+ *-elf*) triplet_os="elf";;
*)
echo "Unsupported target ${target}." 1>&2
exit 1
diff --git a/gcc/config/loongarch/elf.h b/gcc/config/loongarch/elf.h
new file mode 100644
index 00000000000..39e2cbc7b5e
--- /dev/null
+++ b/gcc/config/loongarch/elf.h
@@ -0,0 +1,52 @@
+/* Definitions for LoongArch ELF-based systems.
+ Copyright (C) 1998-2023 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 GNU_USER_TARGET_LINK_SPEC
+#define GNU_USER_TARGET_LINK_SPEC \
+ "%{shared} -m " GNU_USER_LINK_EMULATION
+
+
+/* Link against Newlib libraries, because the ELF backend assumes Newlib.
+ Handle the circular dependence between libc and libgloss. */
+#undef LIB_SPEC
+#define LIB_SPEC "--start-group -lc %{!specs=nosys.specs:-lgloss} --end-group"
+
+#undef LINK_SPEC
+#define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend%O%s"
+
+#undef SUBTARGET_CC1_SPEC
+#define SUBTARGET_CC1_SPEC "%{profile:-p}"
+
diff --git a/libgcc/config.host b/libgcc/config.host
index c94d69d84b7..6a112a07b14 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -136,7 +136,7 @@ hppa*-*-*)
lm32*-*-*)
cpu_type=lm32
;;
-loongarch*-*-*)
+loongarch*-*)
cpu_type=loongarch
tmake_file="loongarch/t-loongarch"
if test "${libgcc_cv_loongarch_hard_float}" = yes; then
@@ -944,7 +944,7 @@ lm32-*-uclinux*)
extra_parts="$extra_parts crtbegin.o crtendS.o crtbeginT.o"
tmake_file="lm32/t-lm32 lm32/t-uclinux t-libgcc-pic t-softfp-sfdf
t-softfp"
;;
-loongarch*-*-linux*)
+loongarch*-linux*)
extra_parts="$extra_parts crtfastmath.o"
tmake_file="${tmake_file} t-crtfm loongarch/t-crtstuff"
case ${host} in
@@ -954,6 +954,11 @@ loongarch*-*-linux*)
esac
md_unwind_header=loongarch/linux-unwind.h
;;
+loongarch*-elf*)
+ extra_parts="$extra_parts crtfastmath.o"
+ tmake_file="${tmake_file} t-crtfm loongarch/t-crtstuff"
+ tmake_file="${tmake_file} t-slibgcc-libgcc"
+ ;;
m32r-*-elf*)
tmake_file="$tmake_file m32r/t-m32r t-fdpbit"
extra_parts="$extra_parts crtinit.o crtfini.o"
--
2.41.0
