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arch: Add 64-bit LoongArch support
Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn> Signed-off-by: WANG Xuerui <git@xen0n.name> Acked-by: Tom Hromatka <tom.hromatka@oracle.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
1 parent 315f7b9 commit 6966ec7

17 files changed

+176
-0
lines changed

‎include/seccomp.h.in‎

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@@ -152,6 +152,18 @@ struct scmp_arg_cmp {
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#endif /* AUDIT_ARCH_AARCH64 */
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#define SCMP_ARCH_AARCH64 AUDIT_ARCH_AARCH64
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/**
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* The LoongArch architecture tokens
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*/
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/* 64-bit LoongArch audit support is upstream as of 5.19-rc1 */
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#ifndef AUDIT_ARCH_LOONGARCH64
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#ifndef EM_LOONGARCH
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#define EM_LOONGARCH 258
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#endif /* EM_LOONGARCH */
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#define AUDIT_ARCH_LOONGARCH64 (EM_LOONGARCH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
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#endif /* AUDIT_ARCH_LOONGARCH64 */
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#define SCMP_ARCH_LOONGARCH64 AUDIT_ARCH_LOONGARCH64
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/**
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* The MIPS architecture tokens
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*/

‎src/Makefile.am‎

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@@ -32,6 +32,7 @@ SOURCES_ALL = \
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arch-x32.h arch-x32.c \
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arch-arm.h arch-arm.c \
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arch-aarch64.h arch-aarch64.c \
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arch-loongarch64.h arch-loongarch64.c \
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arch-mips.h arch-mips.c \
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arch-mips64.h arch-mips64.c \
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arch-mips64n32.h arch-mips64n32.c \

‎src/arch-loongarch64.c‎

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@@ -0,0 +1,42 @@
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/**
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* Enhanced Seccomp 64-bit LoongArch Syscall Table
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*
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* Copyright (c) 2021 Xiaotian Wu <wuxiaotian@loongson.cn>
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*/
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/*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of version 2.1 of the GNU Lesser General Public License as
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* published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses>.
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include <linux/audit.h>
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#include "arch.h"
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#include "arch-loongarch64.h"
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#include "syscalls.h"
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ARCH_DEF(loongarch64)
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const struct arch_def arch_def_loongarch64 = {
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.token = SCMP_ARCH_LOONGARCH64,
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.token_bpf = AUDIT_ARCH_LOONGARCH64,
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.size = ARCH_SIZE_64,
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.endian = ARCH_ENDIAN_LITTLE,
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.syscall_resolve_name_raw = loongarch64_syscall_resolve_name,
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.syscall_resolve_num_raw = loongarch64_syscall_resolve_num,
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.syscall_rewrite = NULL,
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.rule_add = NULL,
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.syscall_name_kver = loongarch64_syscall_name_kver,
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.syscall_num_kver = loongarch64_syscall_num_kver,
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};

‎src/arch-loongarch64.h‎

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@@ -0,0 +1,28 @@
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/**
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* Enhanced Seccomp 64-bit LoongArch Syscall Table
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*
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* Copyright (c) 2021 Xiaotian Wu <wuxiaotian@loongson.cn>
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*/
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/*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of version 2.1 of the GNU Lesser General Public License as
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* published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses>.
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*/
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#ifndef _ARCH_LOONGARCH64_H
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#define _ARCH_LOONGARCH64_H
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#include "arch.h"
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ARCH_DECL(loongarch64)
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#endif

‎src/arch-syscall-dump.c‎

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@@ -34,6 +34,7 @@
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#include "arch-x86_64.h"
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#include "arch-x32.h"
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#include "arch-arm.h"
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#include "arch-loongarch64.h"
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#include "arch-mips.h"
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#include "arch-mips64.h"
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#include "arch-mips64n32.h"
@@ -107,6 +108,9 @@ int main(int argc, char *argv[])
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case SCMP_ARCH_AARCH64:
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sys = aarch64_syscall_iterate(iter);
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break;
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case SCMP_ARCH_LOONGARCH64:
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sys = loongarch64_syscall_iterate(iter);
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break;
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case SCMP_ARCH_MIPS:
111115
case SCMP_ARCH_MIPSEL:
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sys = mips_syscall_iterate(iter);

‎src/arch-syscall-validate‎

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@@ -306,6 +306,48 @@ function dump_lib_aarch64() {
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dump_lib_arch aarch64 | mangle_lib_syscall aarch64
307307
}
308308

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#
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# Dump the loongarch64 syscall table
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#
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# Arguments:
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# 1 path to the kernel source
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#
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# Dump the architecture's syscall table to stdout.
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#
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function dump_sys_loongarch64() {
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local sed_filter=""
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sed_filter+='s/__NR3264_fadvise64/223/;'
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sed_filter+='s/__NR3264_fcntl/25/;'
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sed_filter+='s/__NR3264_fstatfs/44/;'
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sed_filter+='s/__NR3264_ftruncate/46/;'
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sed_filter+='s/__NR3264_lseek/62/;'
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sed_filter+='s/__NR3264_mmap/222/;'
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sed_filter+='s/__NR3264_sendfile/71/;'
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sed_filter+='s/__NR3264_statfs/43/;'
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sed_filter+='s/__NR3264_truncate/45/;'
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gcc -E -dM -I$1/include/uapi \
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-D__BITS_PER_LONG=64 \
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-D__ARCH_WANT_SYS_CLONE \
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-D__ARCH_WANT_SYS_CLONE3 \
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$1/arch/loongarch/include/uapi/asm/unistd.h | \
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grep "^#define __NR_" | \
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sed '/__NR_syscalls/d' | \
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sed '/__NR_arch_specific_syscall/d' | \
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sed 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+\(.*\)/\1,\2/' | \
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sed $sed_filter | sort
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}
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#
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# Dump the loongarch64 library syscall table
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#
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# Dump the library's syscall table to stdout.
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#
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function dump_lib_loongarch64() {
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dump_lib_arch loongarch64 | mangle_lib_syscall loongarch64
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}
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#
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# Dump the mips system syscall table
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#
@@ -619,6 +661,9 @@ function dump_sys() {
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aarch64)
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dump_sys_aarch64 "$2"
621663
;;
664+
loongarch64)
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dump_sys_loongarch64 "$2"
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;;
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mips)
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dump_sys_mips "$2"
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;;
@@ -686,6 +731,9 @@ function dump_lib() {
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aarch64)
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dump_lib_aarch64
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;;
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loongarch64)
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dump_lib_loongarch64
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;;
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mips)
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dump_lib_mips
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;;
@@ -750,6 +798,7 @@ function gen_csv() {
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abi_list=""
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abi_list+=" x86 x86_64 x32"
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abi_list+=" arm aarch64"
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abi_list+=" loongarch64"
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abi_list+=" mips mips64 mips64n32"
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abi_list+=" parisc parisc64"
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abi_list+=" ppc ppc64"
@@ -861,6 +910,7 @@ if [[ $opt_arches == "" ]]; then
861910
opt_arches=" \
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x86 x86_64 x32 \
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arm aarch64 \
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loongarch64 \
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mips mips64 mips64n32 \
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parisc parisc64 \
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ppc ppc64 \

‎src/arch.c‎

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@@ -35,6 +35,7 @@
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#include "arch-x32.h"
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#include "arch-arm.h"
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#include "arch-aarch64.h"
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#include "arch-loongarch64.h"
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#include "arch-mips.h"
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#include "arch-mips64.h"
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#include "arch-mips64n32.h"
@@ -63,6 +64,8 @@ const struct arch_def *arch_def_native = &arch_def_x86_64;
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const struct arch_def *arch_def_native = &arch_def_arm;
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#elif __aarch64__
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const struct arch_def *arch_def_native = &arch_def_aarch64;
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#elif __loongarch64
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const struct arch_def *arch_def_native = &arch_def_loongarch64;
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#elif __mips__ && _MIPS_SIM == _MIPS_SIM_ABI32
6770
#if __MIPSEB__
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const struct arch_def *arch_def_native = &arch_def_mips;
@@ -141,6 +144,8 @@ const struct arch_def *arch_def_lookup(uint32_t token)
141144
return &arch_def_arm;
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case SCMP_ARCH_AARCH64:
143146
return &arch_def_aarch64;
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case SCMP_ARCH_LOONGARCH64:
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return &arch_def_loongarch64;
144149
case SCMP_ARCH_MIPS:
145150
return &arch_def_mips;
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case SCMP_ARCH_MIPSEL:
@@ -197,6 +202,8 @@ const struct arch_def *arch_def_lookup_name(const char *arch_name)
197202
return &arch_def_arm;
198203
else if (strcmp(arch_name, "aarch64") == 0)
199204
return &arch_def_aarch64;
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else if (strcmp(arch_name, "loongarch64") == 0)
206+
return &arch_def_loongarch64;
200207
else if (strcmp(arch_name, "mips") == 0)
201208
return &arch_def_mips;
202209
else if (strcmp(arch_name, "mipsel") == 0)

‎src/gen_pfc.c‎

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@@ -61,6 +61,8 @@ static const char *_pfc_arch(const struct arch_def *arch)
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return "arm";
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case SCMP_ARCH_AARCH64:
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return "aarch64";
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case SCMP_ARCH_LOONGARCH64:
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return "loongarch64";
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case SCMP_ARCH_MIPS:
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return "mips";
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case SCMP_ARCH_MIPSEL:

‎src/python/libseccomp.pxd‎

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@@ -38,6 +38,7 @@ cdef extern from "seccomp.h":
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SCMP_ARCH_X32
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SCMP_ARCH_ARM
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SCMP_ARCH_AARCH64
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SCMP_ARCH_LOONGARCH64
4142
SCMP_ARCH_MIPS
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SCMP_ARCH_MIPS64
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SCMP_ARCH_MIPS64N32

‎src/python/seccomp.pyx‎

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@@ -206,6 +206,7 @@ cdef class Arch:
206206
X32 - 64-bit x86 using the x32 ABI
207207
ARM - ARM
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AARCH64 - 64-bit ARM
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LOONGARCH64 - 64-bit LoongArch
209210
MIPS - MIPS O32 ABI
210211
MIPS64 - MIPS 64-bit ABI
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MIPS64N32 - MIPS N32 ABI
@@ -227,6 +228,7 @@ cdef class Arch:
227228
X32 = libseccomp.SCMP_ARCH_X32
228229
ARM = libseccomp.SCMP_ARCH_ARM
229230
AARCH64 = libseccomp.SCMP_ARCH_AARCH64
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LOONGARCH64 = libseccomp.SCMP_ARCH_LOONGARCH64
230232
MIPS = libseccomp.SCMP_ARCH_MIPS
231233
MIPS64 = libseccomp.SCMP_ARCH_MIPS64
232234
MIPS64N32 = libseccomp.SCMP_ARCH_MIPS64N32
@@ -264,6 +266,8 @@ cdef class Arch:
264266
self._token = libseccomp.SCMP_ARCH_ARM
265267
elif arch == libseccomp.SCMP_ARCH_AARCH64:
266268
self._token = libseccomp.SCMP_ARCH_AARCH64
269+
elif arch == libseccomp.SCMP_ARCH_LOONGARCH64:
270+
self._token = libseccomp.SCMP_ARCH_LOONGARCH64
267271
elif arch == libseccomp.SCMP_ARCH_MIPS:
268272
self._token = libseccomp.SCMP_ARCH_MIPS
269273
elif arch == libseccomp.SCMP_ARCH_MIPS64:

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