On 14/06/2019 16:38, co...@sdf.org wrote:
> Hi folks,
>
> This patch adds support for netbsd/aarch64.
> It would be nice to have it committed, please tell me if anything is
> wrong.
>
> Thanks.
>
> Matthew Green <m...@eterna.com.au>
> Maya Rashish <co...@sdf.org>
>
> gcc:
> * config.gcc (aarch64*-*-netbsd*): New target.
> * config/aarch64/aarch64-netbsd.h: New file.
> * config/aarch64/t-aarch64-netbsd: Likewise.
>
> libgcc:
> * config.host (aarch64*-*-netbsd*): New case.
>
>
Thanks, I've put this in.
R.
>
> ---
> gcc/config.gcc | 6 +++
> gcc/config/aarch64/aarch64-netbsd.h | 80 +++++++++++++++++++++++++++++
> gcc/config/aarch64/t-aarch64-netbsd | 21 ++++++++
> libgcc/config.host | 6 +++
> 4 files changed, 113 insertions(+)
> create mode 100644 gcc/config/aarch64/aarch64-netbsd.h
> create mode 100644 gcc/config/aarch64/t-aarch64-netbsd
>
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index 0f80e836f4e..678c4ec51a3 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -1021,6 +1021,12 @@ aarch64*-*-freebsd*)
> tmake_file="${tmake_file} aarch64/t-aarch64 aarch64/t-aarch64-freebsd"
> tm_defines="${tm_defines} TARGET_DEFAULT_ASYNC_UNWIND_TABLES=1"
> ;;
> +aarch64*-*-netbsd*)
> + tm_file="${tm_file} dbxelf.h elfos.h ${nbsd_tm_file}"
> + tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-netbsd.h"
> + tmake_file="${tmake_file} aarch64/t-aarch64 aarch64/t-aarch64-netbsd"
> + extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
> + ;;
> aarch64*-*-linux*)
> tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h"
> tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-linux.h"
> diff --git a/gcc/config/aarch64/aarch64-netbsd.h
> b/gcc/config/aarch64/aarch64-netbsd.h
> new file mode 100644
> index 00000000000..72fe6a2bdb5
> --- /dev/null
> +++ b/gcc/config/aarch64/aarch64-netbsd.h
> @@ -0,0 +1,80 @@
> +/* Definitions for AArch64 running NetBSD
> + Copyright (C) 2016-2019 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/>. */
> +
> +#ifndef GCC_AARCH64_NETBSD_H
> +#define GCC_AARCH64_NETBSD_H
> +
> +#define TARGET_LINKER_BIG_EMULATION "aarch64nbsdb"
> +#define TARGET_LINKER_LITTLE_EMULATION "aarch64nbsd"
> +
> +#if TARGET_BIG_ENDIAN_DEFAULT
> +#define TARGET_LINKER_EMULATION TARGET_LINKER_BIG_EMULATION
> +#else
> +#define TARGET_LINKER_EMULATION TARGET_LINKER_LITTLE_EMULATION
> +#endif
> +
> +#undef SUBTARGET_EXTRA_LINK_SPEC
> +#define SUBTARGET_EXTRA_LINK_SPEC " -m" TARGET_LINKER_EMULATION
> +
> +#define NETBSD_ENTRY_POINT "__start"
> +
> +#define NETBSD_TARGET_LINK_SPEC "%{h*} \
> + -X %{mbig-endian:-EB -m " TARGET_LINKER_BIG_EMULATION "} \
> + %{mlittle-endian:-EL -m " TARGET_LINKER_LITTLE_EMULATION "} \
> + %(netbsd_link_spec)"
> +
> +#if TARGET_FIX_ERR_A53_835769_DEFAULT
> +#define CA53_ERR_835769_SPEC \
> + " %{!mno-fix-cortex-a53-835769:--fix-cortex-a53-835769}"
> +#else
> +#define CA53_ERR_835769_SPEC \
> + " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}"
> +#endif
> +
> +#ifdef TARGET_FIX_ERR_A53_843419_DEFAULT
> +#define CA53_ERR_843419_SPEC \
> + " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}"
> +#else
> +#define CA53_ERR_843419_SPEC \
> + " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}"
> +#endif
> +
> +#undef LINK_SPEC
> +#define LINK_SPEC NETBSD_LINK_SPEC_ELF \
> + NETBSD_TARGET_LINK_SPEC \
> + CA53_ERR_835769_SPEC \
> + CA53_ERR_843419_SPEC
> +
> +#undef TARGET_OS_CPP_BUILTINS
> +#define TARGET_OS_CPP_BUILTINS() \
> + do \
> + { \
> + NETBSD_OS_CPP_BUILTINS_ELF(); \
> + } \
> + while (0)
> +
> +#undef SUBTARGET_CPP_SPEC
> +#define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
> +
> +#undef EXTRA_SPECS
> +#define EXTRA_SPECS \
> + { "asm_cpu_spec", ASM_CPU_SPEC }, \
> + NETBSD_SUBTARGET_EXTRA_SPECS
> +
> +#endif /* GCC_AARCH64_NETBSD_H */
> diff --git a/gcc/config/aarch64/t-aarch64-netbsd
> b/gcc/config/aarch64/t-aarch64-netbsd
> new file mode 100644
> index 00000000000..aa447d0f6d4
> --- /dev/null
> +++ b/gcc/config/aarch64/t-aarch64-netbsd
> @@ -0,0 +1,21 @@
> +# Machine description for AArch64 architecture.
> +# Copyright (C) 2016-2019 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/>.
> +
> +LIB1ASMSRC = aarch64/lib1funcs.asm
> +LIB1ASMFUNCS = _aarch64_sync_cache_range
> diff --git a/libgcc/config.host b/libgcc/config.host
> index 0574b4d7741..e6a834b8fc8 100644
> --- a/libgcc/config.host
> +++ b/libgcc/config.host
> @@ -359,6 +359,12 @@ aarch64*-*-freebsd*)
> tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
> md_unwind_header=aarch64/freebsd-unwind.h
> ;;
> +aarch64*-*-netbsd*)
> + extra_parts="$extra_parts crtfastmath.o"
> + tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
> + tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
> + md_unwind_header=aarch64/aarch64-unwind.h
> + ;;
> aarch64*-*-fuchsia*)
> tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
> tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp"
>
