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0001 #!/bin/sh 0002 # SPDX-License-Identifier: GPL-2.0 0003 # 0004 # Check if current architecture are missing any function calls compared 0005 # to i386. 0006 # i386 define a number of legacy system calls that are i386 specific 0007 # and listed below so they are ignored. 0008 # 0009 # Usage: 0010 # checksyscalls.sh gcc gcc-options 0011 # 0012 0013 ignore_list() { 0014 cat << EOF 0015 #include <asm/types.h> 0016 #include <asm/unistd.h> 0017 0018 /* *at */ 0019 #define __IGNORE_open /* openat */ 0020 #define __IGNORE_link /* linkat */ 0021 #define __IGNORE_unlink /* unlinkat */ 0022 #define __IGNORE_mknod /* mknodat */ 0023 #define __IGNORE_chmod /* fchmodat */ 0024 #define __IGNORE_chown /* fchownat */ 0025 #define __IGNORE_mkdir /* mkdirat */ 0026 #define __IGNORE_rmdir /* unlinkat */ 0027 #define __IGNORE_lchown /* fchownat */ 0028 #define __IGNORE_access /* faccessat */ 0029 #define __IGNORE_rename /* renameat2 */ 0030 #define __IGNORE_readlink /* readlinkat */ 0031 #define __IGNORE_symlink /* symlinkat */ 0032 #define __IGNORE_utimes /* futimesat */ 0033 #define __IGNORE_stat /* fstatat */ 0034 #define __IGNORE_lstat /* fstatat */ 0035 #define __IGNORE_stat64 /* fstatat64 */ 0036 #define __IGNORE_lstat64 /* fstatat64 */ 0037 0038 #ifndef __ARCH_WANT_SET_GET_RLIMIT 0039 #define __IGNORE_getrlimit /* getrlimit */ 0040 #define __IGNORE_setrlimit /* setrlimit */ 0041 #endif 0042 0043 #ifndef __ARCH_WANT_MEMFD_SECRET 0044 #define __IGNORE_memfd_secret 0045 #endif 0046 0047 /* Missing flags argument */ 0048 #define __IGNORE_renameat /* renameat2 */ 0049 0050 /* CLOEXEC flag */ 0051 #define __IGNORE_pipe /* pipe2 */ 0052 #define __IGNORE_dup2 /* dup3 */ 0053 #define __IGNORE_epoll_create /* epoll_create1 */ 0054 #define __IGNORE_inotify_init /* inotify_init1 */ 0055 #define __IGNORE_eventfd /* eventfd2 */ 0056 #define __IGNORE_signalfd /* signalfd4 */ 0057 0058 /* MMU */ 0059 #ifndef CONFIG_MMU 0060 #define __IGNORE_madvise 0061 #define __IGNORE_mbind 0062 #define __IGNORE_mincore 0063 #define __IGNORE_mlock 0064 #define __IGNORE_mlockall 0065 #define __IGNORE_munlock 0066 #define __IGNORE_munlockall 0067 #define __IGNORE_mprotect 0068 #define __IGNORE_msync 0069 #define __IGNORE_migrate_pages 0070 #define __IGNORE_move_pages 0071 #define __IGNORE_remap_file_pages 0072 #define __IGNORE_get_mempolicy 0073 #define __IGNORE_set_mempolicy 0074 #define __IGNORE_swapoff 0075 #define __IGNORE_swapon 0076 #endif 0077 0078 /* System calls for 32-bit kernels only */ 0079 #if BITS_PER_LONG == 64 0080 #define __IGNORE_sendfile64 0081 #define __IGNORE_ftruncate64 0082 #define __IGNORE_truncate64 0083 #define __IGNORE_stat64 0084 #define __IGNORE_lstat64 0085 #define __IGNORE_fcntl64 0086 #define __IGNORE_fadvise64_64 0087 #define __IGNORE_fstatfs64 0088 #define __IGNORE_statfs64 0089 #define __IGNORE_llseek 0090 #define __IGNORE_mmap2 0091 #define __IGNORE_clock_gettime64 0092 #define __IGNORE_clock_settime64 0093 #define __IGNORE_clock_adjtime64 0094 #define __IGNORE_clock_getres_time64 0095 #define __IGNORE_clock_nanosleep_time64 0096 #define __IGNORE_timer_gettime64 0097 #define __IGNORE_timer_settime64 0098 #define __IGNORE_timerfd_gettime64 0099 #define __IGNORE_timerfd_settime64 0100 #define __IGNORE_utimensat_time64 0101 #define __IGNORE_pselect6_time64 0102 #define __IGNORE_ppoll_time64 0103 #define __IGNORE_io_pgetevents_time64 0104 #define __IGNORE_recvmmsg_time64 0105 #define __IGNORE_mq_timedsend_time64 0106 #define __IGNORE_mq_timedreceive_time64 0107 #define __IGNORE_semtimedop_time64 0108 #define __IGNORE_rt_sigtimedwait_time64 0109 #define __IGNORE_futex_time64 0110 #define __IGNORE_sched_rr_get_interval_time64 0111 #else 0112 #define __IGNORE_sendfile 0113 #define __IGNORE_ftruncate 0114 #define __IGNORE_truncate 0115 #define __IGNORE_stat 0116 #define __IGNORE_lstat 0117 #define __IGNORE_fstat 0118 #define __IGNORE_fcntl 0119 #define __IGNORE_fadvise64 0120 #define __IGNORE_newfstatat 0121 #define __IGNORE_fstatfs 0122 #define __IGNORE_statfs 0123 #define __IGNORE_lseek 0124 #define __IGNORE_mmap 0125 #define __IGNORE_clock_gettime 0126 #define __IGNORE_clock_settime 0127 #define __IGNORE_clock_adjtime 0128 #define __IGNORE_clock_getres 0129 #define __IGNORE_clock_nanosleep 0130 #define __IGNORE_timer_gettime 0131 #define __IGNORE_timer_settime 0132 #define __IGNORE_timerfd_gettime 0133 #define __IGNORE_timerfd_settime 0134 #define __IGNORE_utimensat 0135 #define __IGNORE_pselect6 0136 #define __IGNORE_ppoll 0137 #define __IGNORE_io_pgetevents 0138 #define __IGNORE_recvmmsg 0139 #define __IGNORE_mq_timedsend 0140 #define __IGNORE_mq_timedreceive 0141 #define __IGNORE_semtimedop 0142 #define __IGNORE_rt_sigtimedwait 0143 #define __IGNORE_futex 0144 #define __IGNORE_sched_rr_get_interval 0145 #define __IGNORE_gettimeofday 0146 #define __IGNORE_settimeofday 0147 #define __IGNORE_wait4 0148 #define __IGNORE_adjtimex 0149 #define __IGNORE_nanosleep 0150 #define __IGNORE_io_getevents 0151 #define __IGNORE_recvmmsg 0152 #endif 0153 0154 /* i386-specific or historical system calls */ 0155 #define __IGNORE_break 0156 #define __IGNORE_stty 0157 #define __IGNORE_gtty 0158 #define __IGNORE_ftime 0159 #define __IGNORE_prof 0160 #define __IGNORE_lock 0161 #define __IGNORE_mpx 0162 #define __IGNORE_ulimit 0163 #define __IGNORE_profil 0164 #define __IGNORE_ioperm 0165 #define __IGNORE_iopl 0166 #define __IGNORE_idle 0167 #define __IGNORE_modify_ldt 0168 #define __IGNORE_ugetrlimit 0169 #define __IGNORE_vm86 0170 #define __IGNORE_vm86old 0171 #define __IGNORE_set_thread_area 0172 #define __IGNORE_get_thread_area 0173 #define __IGNORE_madvise1 0174 #define __IGNORE_oldstat 0175 #define __IGNORE_oldfstat 0176 #define __IGNORE_oldlstat 0177 #define __IGNORE_oldolduname 0178 #define __IGNORE_olduname 0179 #define __IGNORE_umount 0180 #define __IGNORE_waitpid 0181 #define __IGNORE_stime 0182 #define __IGNORE_nice 0183 #define __IGNORE_signal 0184 #define __IGNORE_sigaction 0185 #define __IGNORE_sgetmask 0186 #define __IGNORE_sigsuspend 0187 #define __IGNORE_sigpending 0188 #define __IGNORE_ssetmask 0189 #define __IGNORE_readdir 0190 #define __IGNORE_socketcall 0191 #define __IGNORE_ipc 0192 #define __IGNORE_sigreturn 0193 #define __IGNORE_sigprocmask 0194 #define __IGNORE_bdflush 0195 #define __IGNORE__llseek 0196 #define __IGNORE__newselect 0197 #define __IGNORE_create_module 0198 #define __IGNORE_query_module 0199 #define __IGNORE_get_kernel_syms 0200 #define __IGNORE_sysfs 0201 #define __IGNORE_uselib 0202 #define __IGNORE__sysctl 0203 #define __IGNORE_arch_prctl 0204 #define __IGNORE_nfsservctl 0205 0206 /* ... including the "new" 32-bit uid syscalls */ 0207 #define __IGNORE_lchown32 0208 #define __IGNORE_getuid32 0209 #define __IGNORE_getgid32 0210 #define __IGNORE_geteuid32 0211 #define __IGNORE_getegid32 0212 #define __IGNORE_setreuid32 0213 #define __IGNORE_setregid32 0214 #define __IGNORE_getgroups32 0215 #define __IGNORE_setgroups32 0216 #define __IGNORE_fchown32 0217 #define __IGNORE_setresuid32 0218 #define __IGNORE_getresuid32 0219 #define __IGNORE_setresgid32 0220 #define __IGNORE_getresgid32 0221 #define __IGNORE_chown32 0222 #define __IGNORE_setuid32 0223 #define __IGNORE_setgid32 0224 #define __IGNORE_setfsuid32 0225 #define __IGNORE_setfsgid32 0226 0227 /* these can be expressed using other calls */ 0228 #define __IGNORE_alarm /* setitimer */ 0229 #define __IGNORE_creat /* open */ 0230 #define __IGNORE_fork /* clone */ 0231 #define __IGNORE_futimesat /* utimensat */ 0232 #define __IGNORE_getpgrp /* getpgid */ 0233 #define __IGNORE_getdents /* getdents64 */ 0234 #define __IGNORE_pause /* sigsuspend */ 0235 #define __IGNORE_poll /* ppoll */ 0236 #define __IGNORE_select /* pselect6 */ 0237 #define __IGNORE_epoll_wait /* epoll_pwait */ 0238 #define __IGNORE_time /* gettimeofday */ 0239 #define __IGNORE_uname /* newuname */ 0240 #define __IGNORE_ustat /* statfs */ 0241 #define __IGNORE_utime /* utimes */ 0242 #define __IGNORE_vfork /* clone */ 0243 0244 /* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */ 0245 #ifdef __NR_sync_file_range2 0246 #define __IGNORE_sync_file_range 0247 #endif 0248 0249 /* Unmerged syscalls for AFS, STREAMS, etc. */ 0250 #define __IGNORE_afs_syscall 0251 #define __IGNORE_getpmsg 0252 #define __IGNORE_putpmsg 0253 #define __IGNORE_vserver 0254 0255 /* 64-bit ports never needed these, and new 32-bit ports can use statx */ 0256 #define __IGNORE_fstat64 0257 #define __IGNORE_fstatat64 0258 EOF 0259 } 0260 0261 syscall_list() { 0262 grep '^[0-9]' "$1" | sort -n | 0263 while read nr abi name entry ; do 0264 echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})" 0265 echo "#warning syscall ${name} not implemented" 0266 echo "#endif" 0267 done 0268 } 0269 0270 (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \ 0271 $* -Wno-error -Wno-unused-macros -E -x c - > /dev/null
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