diff options
Diffstat (limited to 'scripts/checksyscalls.sh')
| -rwxr-xr-x | scripts/checksyscalls.sh | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh new file mode 100755 index 0000000000..1e5d2eeb72 --- /dev/null +++ b/scripts/checksyscalls.sh @@ -0,0 +1,273 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Check if current architecture are missing any function calls compared +# to i386. +# i386 define a number of legacy system calls that are i386 specific +# and listed below so they are ignored. +# +# Usage: +# checksyscalls.sh gcc gcc-options +# + +ignore_list() { +cat << EOF +#include <asm/types.h> +#include <asm/unistd.h> + +/* *at */ +#define __IGNORE_open /* openat */ +#define __IGNORE_link /* linkat */ +#define __IGNORE_unlink /* unlinkat */ +#define __IGNORE_mknod /* mknodat */ +#define __IGNORE_chmod /* fchmodat */ +#define __IGNORE_chown /* fchownat */ +#define __IGNORE_mkdir /* mkdirat */ +#define __IGNORE_rmdir /* unlinkat */ +#define __IGNORE_lchown /* fchownat */ +#define __IGNORE_access /* faccessat */ +#define __IGNORE_rename /* renameat2 */ +#define __IGNORE_readlink /* readlinkat */ +#define __IGNORE_symlink /* symlinkat */ +#define __IGNORE_utimes /* futimesat */ +#define __IGNORE_stat /* fstatat */ +#define __IGNORE_lstat /* fstatat */ +#define __IGNORE_stat64 /* fstatat64 */ +#define __IGNORE_lstat64 /* fstatat64 */ + +#ifndef __ARCH_WANT_SET_GET_RLIMIT +#define __IGNORE_getrlimit /* getrlimit */ +#define __IGNORE_setrlimit /* setrlimit */ +#endif + +#ifndef __ARCH_WANT_MEMFD_SECRET +#define __IGNORE_memfd_secret +#endif + +/* Missing flags argument */ +#define __IGNORE_renameat /* renameat2 */ + +/* CLOEXEC flag */ +#define __IGNORE_pipe /* pipe2 */ +#define __IGNORE_dup2 /* dup3 */ +#define __IGNORE_epoll_create /* epoll_create1 */ +#define __IGNORE_inotify_init /* inotify_init1 */ +#define __IGNORE_eventfd /* eventfd2 */ +#define __IGNORE_signalfd /* signalfd4 */ + +/* MMU */ +#ifndef CONFIG_MMU +#define __IGNORE_madvise +#define __IGNORE_mbind +#define __IGNORE_mincore +#define __IGNORE_mlock +#define __IGNORE_mlockall +#define __IGNORE_munlock +#define __IGNORE_munlockall +#define __IGNORE_mprotect +#define __IGNORE_msync +#define __IGNORE_migrate_pages +#define __IGNORE_move_pages +#define __IGNORE_remap_file_pages +#define __IGNORE_get_mempolicy +#define __IGNORE_set_mempolicy +#define __IGNORE_swapoff +#define __IGNORE_swapon +#endif + +/* System calls for 32-bit kernels only */ +#if BITS_PER_LONG == 64 +#define __IGNORE_sendfile64 +#define __IGNORE_ftruncate64 +#define __IGNORE_truncate64 +#define __IGNORE_stat64 +#define __IGNORE_lstat64 +#define __IGNORE_fcntl64 +#define __IGNORE_fadvise64_64 +#define __IGNORE_fstatfs64 +#define __IGNORE_statfs64 +#define __IGNORE_llseek +#define __IGNORE_mmap2 +#define __IGNORE_clock_gettime64 +#define __IGNORE_clock_settime64 +#define __IGNORE_clock_adjtime64 +#define __IGNORE_clock_getres_time64 +#define __IGNORE_clock_nanosleep_time64 +#define __IGNORE_timer_gettime64 +#define __IGNORE_timer_settime64 +#define __IGNORE_timerfd_gettime64 +#define __IGNORE_timerfd_settime64 +#define __IGNORE_utimensat_time64 +#define __IGNORE_pselect6_time64 +#define __IGNORE_ppoll_time64 +#define __IGNORE_io_pgetevents_time64 +#define __IGNORE_recvmmsg_time64 +#define __IGNORE_mq_timedsend_time64 +#define __IGNORE_mq_timedreceive_time64 +#define __IGNORE_semtimedop_time64 +#define __IGNORE_rt_sigtimedwait_time64 +#define __IGNORE_futex_time64 +#define __IGNORE_sched_rr_get_interval_time64 +#else +#define __IGNORE_sendfile +#define __IGNORE_ftruncate +#define __IGNORE_truncate +#define __IGNORE_stat +#define __IGNORE_lstat +#define __IGNORE_fcntl +#define __IGNORE_fadvise64 +#define __IGNORE_newfstatat +#define __IGNORE_fstatfs +#define __IGNORE_statfs +#define __IGNORE_lseek +#define __IGNORE_mmap +#define __IGNORE_clock_gettime +#define __IGNORE_clock_settime +#define __IGNORE_clock_adjtime +#define __IGNORE_clock_getres +#define __IGNORE_clock_nanosleep +#define __IGNORE_timer_gettime +#define __IGNORE_timer_settime +#define __IGNORE_timerfd_gettime +#define __IGNORE_timerfd_settime +#define __IGNORE_utimensat +#define __IGNORE_pselect6 +#define __IGNORE_ppoll +#define __IGNORE_io_pgetevents +#define __IGNORE_recvmmsg +#define __IGNORE_mq_timedsend +#define __IGNORE_mq_timedreceive +#define __IGNORE_semtimedop +#define __IGNORE_rt_sigtimedwait +#define __IGNORE_futex +#define __IGNORE_sched_rr_get_interval +#define __IGNORE_gettimeofday +#define __IGNORE_settimeofday +#define __IGNORE_wait4 +#define __IGNORE_adjtimex +#define __IGNORE_nanosleep +#define __IGNORE_io_getevents +#define __IGNORE_recvmmsg +#endif + +/* i386-specific or historical system calls */ +#define __IGNORE_break +#define __IGNORE_stty +#define __IGNORE_gtty +#define __IGNORE_ftime +#define __IGNORE_prof +#define __IGNORE_lock +#define __IGNORE_mpx +#define __IGNORE_ulimit +#define __IGNORE_profil +#define __IGNORE_ioperm +#define __IGNORE_iopl +#define __IGNORE_idle +#define __IGNORE_modify_ldt +#define __IGNORE_ugetrlimit +#define __IGNORE_vm86 +#define __IGNORE_vm86old +#define __IGNORE_set_thread_area +#define __IGNORE_get_thread_area +#define __IGNORE_madvise1 +#define __IGNORE_oldstat +#define __IGNORE_oldfstat +#define __IGNORE_oldlstat +#define __IGNORE_oldolduname +#define __IGNORE_olduname +#define __IGNORE_umount +#define __IGNORE_waitpid +#define __IGNORE_stime +#define __IGNORE_nice +#define __IGNORE_signal +#define __IGNORE_sigaction +#define __IGNORE_sgetmask +#define __IGNORE_sigsuspend +#define __IGNORE_sigpending +#define __IGNORE_ssetmask +#define __IGNORE_readdir +#define __IGNORE_socketcall +#define __IGNORE_ipc +#define __IGNORE_sigreturn +#define __IGNORE_sigprocmask +#define __IGNORE_bdflush +#define __IGNORE__llseek +#define __IGNORE__newselect +#define __IGNORE_create_module +#define __IGNORE_query_module +#define __IGNORE_get_kernel_syms +#define __IGNORE_sysfs +#define __IGNORE_uselib +#define __IGNORE__sysctl +#define __IGNORE_arch_prctl +#define __IGNORE_nfsservctl + +/* ... including the "new" 32-bit uid syscalls */ +#define __IGNORE_lchown32 +#define __IGNORE_getuid32 +#define __IGNORE_getgid32 +#define __IGNORE_geteuid32 +#define __IGNORE_getegid32 +#define __IGNORE_setreuid32 +#define __IGNORE_setregid32 +#define __IGNORE_getgroups32 +#define __IGNORE_setgroups32 +#define __IGNORE_fchown32 +#define __IGNORE_setresuid32 +#define __IGNORE_getresuid32 +#define __IGNORE_setresgid32 +#define __IGNORE_getresgid32 +#define __IGNORE_chown32 +#define __IGNORE_setuid32 +#define __IGNORE_setgid32 +#define __IGNORE_setfsuid32 +#define __IGNORE_setfsgid32 + +/* these can be expressed using other calls */ +#define __IGNORE_alarm /* setitimer */ +#define __IGNORE_creat /* open */ +#define __IGNORE_fork /* clone */ +#define __IGNORE_futimesat /* utimensat */ +#define __IGNORE_getpgrp /* getpgid */ +#define __IGNORE_getdents /* getdents64 */ +#define __IGNORE_pause /* sigsuspend */ +#define __IGNORE_poll /* ppoll */ +#define __IGNORE_select /* pselect6 */ +#define __IGNORE_epoll_wait /* epoll_pwait */ +#define __IGNORE_time /* gettimeofday */ +#define __IGNORE_uname /* newuname */ +#define __IGNORE_ustat /* statfs */ +#define __IGNORE_utime /* utimes */ +#define __IGNORE_vfork /* clone */ + +/* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */ +#ifdef __NR_sync_file_range2 +#define __IGNORE_sync_file_range +#endif + +/* Unmerged syscalls for AFS, STREAMS, etc. */ +#define __IGNORE_afs_syscall +#define __IGNORE_getpmsg +#define __IGNORE_putpmsg +#define __IGNORE_vserver + +/* 64-bit ports never needed these, and new 32-bit ports can use statx */ +#define __IGNORE_fstat64 +#define __IGNORE_fstatat64 + +/* Newer ports are not required to provide fstat in favor of statx */ +#define __IGNORE_fstat +EOF +} + +syscall_list() { + grep '^[0-9]' "$1" | sort -n | + while read nr abi name entry ; do + echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})" + echo "#warning syscall ${name} not implemented" + echo "#endif" + done +} + +(ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \ +$* -Wno-error -Wno-unused-macros -E -x c - > /dev/null |