linux-kernel - Re: [PATCH 1/2] alpha: syscalls: switch to generic syscalltbl.sh

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Date:   Sun, 11 Apr 2021 22:51:12 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>, linux-alpha@...r.kernel.org
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH 1/2] alpha: syscalls: switch to generic syscalltbl.sh

On Mon, Mar 1, 2021 at 11:18 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> Many architectures duplicate similar shell scripts.
>
> This commit converts alpha to use scripts/syscalltbl.sh.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Applied to linux-kbuild.


> ---
>
>  arch/alpha/kernel/syscalls/Makefile      |  7 ++----
>  arch/alpha/kernel/syscalls/syscalltbl.sh | 32 ------------------------
>  arch/alpha/kernel/systbls.S              |  3 +--
>  3 files changed, 3 insertions(+), 39 deletions(-)
>  delete mode 100644 arch/alpha/kernel/syscalls/syscalltbl.sh
>
> diff --git a/arch/alpha/kernel/syscalls/Makefile b/arch/alpha/kernel/syscalls/Makefile
> index 285aaba832d9..ad2492cb5568 100644
> --- a/arch/alpha/kernel/syscalls/Makefile
> +++ b/arch/alpha/kernel/syscalls/Makefile
> @@ -7,7 +7,7 @@ _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')       \
>
>  syscall := $(src)/syscall.tbl
>  syshdr := $(srctree)/$(src)/syscallhdr.sh
> -systbl := $(srctree)/$(src)/syscalltbl.sh
> +systbl := $(srctree)/scripts/syscalltbl.sh
>
>  quiet_cmd_syshdr = SYSHDR  $@
>        cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'       \
> @@ -16,10 +16,7 @@ quiet_cmd_syshdr = SYSHDR  $@
>                    '$(syshdr_offset_$(basetarget))'
>
>  quiet_cmd_systbl = SYSTBL  $@
> -      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'       \
> -                  '$(systbl_abis_$(basetarget))'               \
> -                  '$(systbl_abi_$(basetarget))'                \
> -                  '$(systbl_offset_$(basetarget))'
> +      cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
>
>  $(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
>         $(call if_changed,syshdr)
> diff --git a/arch/alpha/kernel/syscalls/syscalltbl.sh b/arch/alpha/kernel/syscalls/syscalltbl.sh
> deleted file mode 100644
> index 85d78d9309ad..000000000000
> --- a/arch/alpha/kernel/syscalls/syscalltbl.sh
> +++ /dev/null
> @@ -1,32 +0,0 @@
> -#!/bin/sh
> -# SPDX-License-Identifier: GPL-2.0
> -
> -in="$1"
> -out="$2"
> -my_abis=`echo "($3)" | tr ',' '|'`
> -my_abi="$4"
> -offset="$5"
> -
> -emit() {
> -       t_nxt="$1"
> -       t_nr="$2"
> -       t_entry="$3"
> -
> -       while [ $t_nxt -lt $t_nr ]; do
> -               printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
> -               t_nxt=$((t_nxt+1))
> -       done
> -       printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
> -}
> -
> -grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> -       nxt=0
> -       if [ -z "$offset" ]; then
> -               offset=0
> -       fi
> -
> -       while read nr abi name entry ; do
> -               emit $((nxt+offset)) $((nr+offset)) $entry
> -               nxt=$((nr+1))
> -       done
> -) > "$out"
> diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
> index 9704f22ed5e3..68f3e4f329eb 100644
> --- a/arch/alpha/kernel/systbls.S
> +++ b/arch/alpha/kernel/systbls.S
> @@ -7,10 +7,9 @@
>
>  #include <asm/unistd.h>
>
> -#define __SYSCALL(nr, entry, nargs) .quad entry
> +#define __SYSCALL(nr, entry) .quad entry
>         .data
>         .align 3
>         .globl sys_call_table
>  sys_call_table:
>  #include <asm/syscall_table.h>
> -#undef __SYSCALL
> --
> 2.27.0
>


-- 
Best Regards
Masahiro Yamada