153 lines
4.6 KiB
Diff
153 lines
4.6 KiB
Diff
From 71cfcadb647026ced3c99688793a2f8e5d5f0039 Mon Sep 17 00:00:00 2001
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From: Yang Yujie <yangyujie@loongson.cn>
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Date: Fri, 30 Jun 2023 17:07:59 +0800
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Subject: [PATCH 061/124] LoongArch: support loongarch*-elf target
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gcc/ChangeLog:
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* config.gcc: add loongarch*-elf target.
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* config/loongarch/elf.h: New file.
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Link against newlib by default.
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libgcc/ChangeLog:
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* config.host: add loongarch*-elf target.
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Signed-off-by: Peng Fan <fanpeng@loongson.cn>
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Signed-off-by: ticat_fp <fanpeng@loongson.cn>
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---
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gcc/config.gcc | 15 ++++++++++-
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gcc/config/loongarch/elf.h | 51 ++++++++++++++++++++++++++++++++++++++
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libgcc/config.host | 9 +++++--
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3 files changed, 72 insertions(+), 3 deletions(-)
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create mode 100644 gcc/config/loongarch/elf.h
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diff --git a/gcc/config.gcc b/gcc/config.gcc
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index 16bbaea45..61d81d8d8 100644
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--- a/gcc/config.gcc
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+++ b/gcc/config.gcc
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@@ -2519,6 +2519,18 @@ loongarch*-*-linux*)
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gcc_cv_initfini_array=yes
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;;
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+loongarch*-*-elf*)
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+ tm_file="elfos.h newlib-stdint.h ${tm_file}"
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+ tm_file="${tm_file} loongarch/elf.h loongarch/linux.h"
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+ tmake_file="${tmake_file} loongarch/t-linux"
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+ gnu_ld=yes
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+ gas=yes
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+
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+ # For .init_array support. The configure script cannot always
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+ # automatically detect that GAS supports it, yet we require it.
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+ gcc_cv_initfini_array=yes
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+ ;;
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+
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mips*-*-netbsd*) # NetBSD/mips, either endian.
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target_cpu_default="MASK_ABICALLS"
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tm_file="elfos.h ${tm_file} mips/elf.h ${nbsd_tm_file} mips/netbsd.h"
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@@ -5006,8 +5018,9 @@ case "${target}" in
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esac
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case ${target} in
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- *-linux-gnu*) triplet_os="linux-gnu";;
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+ *-linux-gnu*) triplet_os="linux-gnu";;
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*-linux-musl*) triplet_os="linux-musl";;
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+ *-elf*) triplet_os="elf";;
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*)
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echo "Unsupported target ${target}." 1>&2
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exit 1
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diff --git a/gcc/config/loongarch/elf.h b/gcc/config/loongarch/elf.h
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new file mode 100644
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index 000000000..523d5c756
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--- /dev/null
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+++ b/gcc/config/loongarch/elf.h
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@@ -0,0 +1,51 @@
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+/* Definitions for LoongArch ELF-based systems.
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+ Copyright (C) 2023 Free Software Foundation, Inc.
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+
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+This file is part of GCC.
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+
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+GCC is free software; you can redistribute it and/or modify
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+it under the terms of the GNU General Public License as published by
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+the Free Software Foundation; either version 3, or (at your option)
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+any later version.
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+
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+GCC is distributed in the hope that it will be useful,
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+but WITHOUT ANY WARRANTY; without even the implied warranty of
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+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+GNU General Public License for more details.
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+
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+You should have received a copy of the GNU General Public License
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+along with GCC; see the file COPYING3. If not see
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+<http://www.gnu.org/licenses/>. */
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+
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+/* Define the size of the wide character type. */
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+#undef WCHAR_TYPE
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+#define WCHAR_TYPE "int"
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+
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+#undef WCHAR_TYPE_SIZE
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+#define WCHAR_TYPE_SIZE 32
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+
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+
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+/* GNU-specific SPEC definitions. */
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+#define GNU_USER_LINK_EMULATION "elf" ABI_GRLEN_SPEC "loongarch"
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+
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+#undef GNU_USER_TARGET_LINK_SPEC
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+#define GNU_USER_TARGET_LINK_SPEC \
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+ "%{shared} -m " GNU_USER_LINK_EMULATION
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+
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+
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+/* Link against Newlib libraries, because the ELF backend assumes Newlib.
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+ Handle the circular dependence between libc and libgloss. */
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+#undef LIB_SPEC
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+#define LIB_SPEC "--start-group -lc %{!specs=nosys.specs:-lgloss} --end-group"
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+
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+#undef LINK_SPEC
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+#define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
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+
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+#undef STARTFILE_SPEC
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+#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s"
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+
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+#undef ENDFILE_SPEC
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+#define ENDFILE_SPEC "crtend%O%s"
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+
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+#undef SUBTARGET_CC1_SPEC
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+#define SUBTARGET_CC1_SPEC "%{profile:-p}"
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diff --git a/libgcc/config.host b/libgcc/config.host
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index 8c56fcae5..dc12d646c 100644
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--- a/libgcc/config.host
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+++ b/libgcc/config.host
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@@ -138,7 +138,7 @@ hppa*-*-*)
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lm32*-*-*)
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cpu_type=lm32
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;;
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-loongarch*-*-*)
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+loongarch*-*)
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cpu_type=loongarch
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tmake_file="loongarch/t-loongarch"
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if test "${libgcc_cv_loongarch_hard_float}" = yes; then
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@@ -942,7 +942,7 @@ lm32-*-uclinux*)
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extra_parts="$extra_parts crtbegin.o crtendS.o crtbeginT.o"
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tmake_file="lm32/t-lm32 lm32/t-uclinux t-libgcc-pic t-softfp-sfdf t-softfp"
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;;
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-loongarch*-*-linux*)
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+loongarch*-linux*)
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extra_parts="$extra_parts crtfastmath.o"
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tmake_file="${tmake_file} t-crtfm loongarch/t-crtstuff"
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case ${host} in
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@@ -952,6 +952,11 @@ loongarch*-*-linux*)
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esac
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md_unwind_header=loongarch/linux-unwind.h
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;;
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+loongarch*-elf*)
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+ extra_parts="$extra_parts crtfastmath.o"
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+ tmake_file="${tmake_file} t-crtfm loongarch/t-crtstuff"
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+ tmake_file="${tmake_file} t-slibgcc-libgcc"
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+ ;;
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m32r-*-elf*)
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tmake_file="$tmake_file m32r/t-m32r t-fdpbit"
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extra_parts="$extra_parts crtinit.o crtfini.o"
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--
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2.33.0
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