| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <41623bcf-4cc5-b41e-4968-039035311ae9@gmx.de>
Date: Mon, 8 Mar 2021 21:48:27 +0100
From: Helge Deller <deller@....de>
To: Masahiro Yamada <masahiroy@...nel.org>,
"James E . J . Bottomley" <James.Bottomley@...senPartnership.com>,
linux-parisc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Firoz Khan <firoz.khan@...aro.org>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
John David Anglin <dave.anglin@...l.net>,
Randy Dunlap <rdunlap@...radead.org>,
YiFei Zhu <yifeifz2@...inois.edu>
Subject: Re: [PATCH 1/2] parisc: syscalls: switch to generic syscalltbl.sh
On 3/1/21 3:58 PM, Masahiro Yamada wrote:
> Many architectures duplicate similar shell scripts.
>
> This commit converts parisc to use scripts/syscalltbl.sh. This also
> unifies syscall_table_64.h and syscall_table_c32.h.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
For both patches:
Acked-by: Helge Deller <deller@....de>
Masahiro, will you push it upstream, or should I take it through the parisc tree?
Helge
> ---
>
> arch/parisc/include/asm/Kbuild | 1 -
> arch/parisc/kernel/syscall.S | 16 +++++-----
> arch/parisc/kernel/syscalls/Makefile | 19 ++++--------
> arch/parisc/kernel/syscalls/syscalltbl.sh | 36 -----------------------
> 4 files changed, 12 insertions(+), 60 deletions(-)
> delete mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>
> diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
> index 4406475a2304..e6e7f74c8ac9 100644
> --- a/arch/parisc/include/asm/Kbuild
> +++ b/arch/parisc/include/asm/Kbuild
> @@ -1,7 +1,6 @@
> # SPDX-License-Identifier: GPL-2.0
> generated-y += syscall_table_32.h
> generated-y += syscall_table_64.h
> -generated-y += syscall_table_c32.h
> generic-y += kvm_para.h
> generic-y += mcs_spinlock.h
> generic-y += user.h
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 322503780db6..3f24a0af1e04 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -919,24 +919,24 @@ ENTRY(lws_table)
> END(lws_table)
> /* End of lws table */
>
> +#ifdef CONFIG_64BIT
> +#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
> +#else
> +#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
> +#endif
> #define __SYSCALL(nr, entry) ASM_ULONG_INSN entry
> .align 8
> ENTRY(sys_call_table)
> .export sys_call_table,data
> -#ifdef CONFIG_64BIT
> -#include <asm/syscall_table_c32.h> /* Compat syscalls */
> -#else
> -#include <asm/syscall_table_32.h> /* 32-bit native syscalls */
> -#endif
> +#include <asm/syscall_table_32.h> /* 32-bit syscalls */
> END(sys_call_table)
>
> #ifdef CONFIG_64BIT
> .align 8
> ENTRY(sys_call_table64)
> -#include <asm/syscall_table_64.h> /* 64-bit native syscalls */
> +#include <asm/syscall_table_64.h> /* 64-bit syscalls */
> END(sys_call_table64)
> #endif
> -#undef __SYSCALL
>
> /*
> All light-weight-syscall atomic operations
> @@ -961,5 +961,3 @@ END(lws_lock_start)
> .previous
>
> .end
> -
> -
> diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> index 283f64407b07..11424f1c8d9e 100644
> --- a/arch/parisc/kernel/syscalls/Makefile
> +++ b/arch/parisc/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) --abis $(abis) $< $@
>
> syshdr_abis_unistd_32 := common,32
> $(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
> @@ -29,23 +26,17 @@ syshdr_abis_unistd_64 := common,64
> $(uapi)/unistd_64.h: $(syscall) $(syshdr) FORCE
> $(call if_changed,syshdr)
>
> -systbl_abis_syscall_table_32 := common,32
> +$(kapi)/syscall_table_32.h: abis := common,32
> $(kapi)/syscall_table_32.h: $(syscall) $(systbl) FORCE
> $(call if_changed,systbl)
>
> -systbl_abis_syscall_table_64 := common,64
> +$(kapi)/syscall_table_64.h: abis := common,64
> $(kapi)/syscall_table_64.h: $(syscall) $(systbl) FORCE
> $(call if_changed,systbl)
>
> -systbl_abis_syscall_table_c32 := common,32
> -systbl_abi_syscall_table_c32 := c32
> -$(kapi)/syscall_table_c32.h: $(syscall) $(systbl) FORCE
> - $(call if_changed,systbl)
> -
> uapisyshdr-y += unistd_32.h unistd_64.h
> kapisyshdr-y += syscall_table_32.h \
> - syscall_table_64.h \
> - syscall_table_c32.h
> + syscall_table_64.h
>
> uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
> kapisyshdr-y := $(addprefix $(kapi)/, $(kapisyshdr-y))
> diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
> deleted file mode 100644
> index f7393a7b18aa..000000000000
> --- a/arch/parisc/kernel/syscalls/syscalltbl.sh
> +++ /dev/null
> @@ -1,36 +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 compat ; do
> - if [ "$my_abi" = "c32" ] && [ ! -z "$compat" ]; then
> - emit $((nxt+offset)) $((nr+offset)) $compat
> - else
> - emit $((nxt+offset)) $((nr+offset)) $entry
> - fi
> - nxt=$((nr+1))
> - done
> -) > "$out"
>
Powered by blists - more mailing lists