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Linux/scripts/checksyscalls.sh

  1 #!/bin/sh
  2 #
  3 # Check if current architecture are missing any function calls compared
  4 # to i386.
  5 # i386 define a number of legacy system calls that are i386 specific
  6 # and listed below so they are ignored.
  7 #
  8 # Usage:
  9 # checksyscalls.sh gcc gcc-options
 10 #
 11 
 12 ignore_list() {
 13 cat << EOF
 14 #include <asm/types.h>
 15 #include <asm/unistd.h>
 16 
 17 /* *at */
 18 #define __IGNORE_open           /* openat */
 19 #define __IGNORE_link           /* linkat */
 20 #define __IGNORE_unlink         /* unlinkat */
 21 #define __IGNORE_mknod          /* mknodat */
 22 #define __IGNORE_chmod          /* fchmodat */
 23 #define __IGNORE_chown          /* fchownat */
 24 #define __IGNORE_mkdir          /* mkdirat */
 25 #define __IGNORE_rmdir          /* unlinkat */
 26 #define __IGNORE_lchown         /* fchownat */
 27 #define __IGNORE_access         /* faccessat */
 28 #define __IGNORE_rename         /* renameat2 */
 29 #define __IGNORE_readlink       /* readlinkat */
 30 #define __IGNORE_symlink        /* symlinkat */
 31 #define __IGNORE_utimes         /* futimesat */
 32 #if BITS_PER_LONG == 64
 33 #define __IGNORE_stat           /* fstatat */
 34 #define __IGNORE_lstat          /* fstatat */
 35 #else
 36 #define __IGNORE_stat64         /* fstatat64 */
 37 #define __IGNORE_lstat64        /* fstatat64 */
 38 #endif
 39 
 40 /* Missing flags argument */
 41 #define __IGNORE_renameat       /* renameat2 */
 42 
 43 /* CLOEXEC flag */
 44 #define __IGNORE_pipe           /* pipe2 */
 45 #define __IGNORE_dup2           /* dup3 */
 46 #define __IGNORE_epoll_create   /* epoll_create1 */
 47 #define __IGNORE_inotify_init   /* inotify_init1 */
 48 #define __IGNORE_eventfd        /* eventfd2 */
 49 #define __IGNORE_signalfd       /* signalfd4 */
 50 
 51 /* MMU */
 52 #ifndef CONFIG_MMU
 53 #define __IGNORE_madvise
 54 #define __IGNORE_mbind
 55 #define __IGNORE_mincore
 56 #define __IGNORE_mlock
 57 #define __IGNORE_mlockall
 58 #define __IGNORE_munlock
 59 #define __IGNORE_munlockall
 60 #define __IGNORE_mprotect
 61 #define __IGNORE_msync
 62 #define __IGNORE_migrate_pages
 63 #define __IGNORE_move_pages
 64 #define __IGNORE_remap_file_pages
 65 #define __IGNORE_get_mempolicy
 66 #define __IGNORE_set_mempolicy
 67 #define __IGNORE_swapoff
 68 #define __IGNORE_swapon
 69 #endif
 70 
 71 /* System calls for 32-bit kernels only */
 72 #if BITS_PER_LONG == 64
 73 #define __IGNORE_sendfile64
 74 #define __IGNORE_ftruncate64
 75 #define __IGNORE_truncate64
 76 #define __IGNORE_stat64
 77 #define __IGNORE_lstat64
 78 #define __IGNORE_fstat64
 79 #define __IGNORE_fcntl64
 80 #define __IGNORE_fadvise64_64
 81 #define __IGNORE_fstatat64
 82 #define __IGNORE_fstatfs64
 83 #define __IGNORE_statfs64
 84 #define __IGNORE_llseek
 85 #define __IGNORE_mmap2
 86 #else
 87 #define __IGNORE_sendfile
 88 #define __IGNORE_ftruncate
 89 #define __IGNORE_truncate
 90 #define __IGNORE_stat
 91 #define __IGNORE_lstat
 92 #define __IGNORE_fstat
 93 #define __IGNORE_fcntl
 94 #define __IGNORE_fadvise64
 95 #define __IGNORE_newfstatat
 96 #define __IGNORE_fstatfs
 97 #define __IGNORE_statfs
 98 #define __IGNORE_lseek
 99 #define __IGNORE_mmap
100 #endif
101 
102 /* i386-specific or historical system calls */
103 #define __IGNORE_break
104 #define __IGNORE_stty
105 #define __IGNORE_gtty
106 #define __IGNORE_ftime
107 #define __IGNORE_prof
108 #define __IGNORE_lock
109 #define __IGNORE_mpx
110 #define __IGNORE_ulimit
111 #define __IGNORE_profil
112 #define __IGNORE_ioperm
113 #define __IGNORE_iopl
114 #define __IGNORE_idle
115 #define __IGNORE_modify_ldt
116 #define __IGNORE_ugetrlimit
117 #define __IGNORE_vm86
118 #define __IGNORE_vm86old
119 #define __IGNORE_set_thread_area
120 #define __IGNORE_get_thread_area
121 #define __IGNORE_madvise1
122 #define __IGNORE_oldstat
123 #define __IGNORE_oldfstat
124 #define __IGNORE_oldlstat
125 #define __IGNORE_oldolduname
126 #define __IGNORE_olduname
127 #define __IGNORE_umount
128 #define __IGNORE_waitpid
129 #define __IGNORE_stime
130 #define __IGNORE_nice
131 #define __IGNORE_signal
132 #define __IGNORE_sigaction
133 #define __IGNORE_sgetmask
134 #define __IGNORE_sigsuspend
135 #define __IGNORE_sigpending
136 #define __IGNORE_ssetmask
137 #define __IGNORE_readdir
138 #define __IGNORE_socketcall
139 #define __IGNORE_ipc
140 #define __IGNORE_sigreturn
141 #define __IGNORE_sigprocmask
142 #define __IGNORE_bdflush
143 #define __IGNORE__llseek
144 #define __IGNORE__newselect
145 #define __IGNORE_create_module
146 #define __IGNORE_query_module
147 #define __IGNORE_get_kernel_syms
148 #define __IGNORE_sysfs
149 #define __IGNORE_uselib
150 #define __IGNORE__sysctl
151 
152 /* ... including the "new" 32-bit uid syscalls */
153 #define __IGNORE_lchown32
154 #define __IGNORE_getuid32
155 #define __IGNORE_getgid32
156 #define __IGNORE_geteuid32
157 #define __IGNORE_getegid32
158 #define __IGNORE_setreuid32
159 #define __IGNORE_setregid32
160 #define __IGNORE_getgroups32
161 #define __IGNORE_setgroups32
162 #define __IGNORE_fchown32
163 #define __IGNORE_setresuid32
164 #define __IGNORE_getresuid32
165 #define __IGNORE_setresgid32
166 #define __IGNORE_getresgid32
167 #define __IGNORE_chown32
168 #define __IGNORE_setuid32
169 #define __IGNORE_setgid32
170 #define __IGNORE_setfsuid32
171 #define __IGNORE_setfsgid32
172 
173 /* these can be expressed using other calls */
174 #define __IGNORE_alarm          /* setitimer */
175 #define __IGNORE_creat          /* open */
176 #define __IGNORE_fork           /* clone */
177 #define __IGNORE_futimesat      /* utimensat */
178 #define __IGNORE_getpgrp        /* getpgid */
179 #define __IGNORE_getdents       /* getdents64 */
180 #define __IGNORE_pause          /* sigsuspend */
181 #define __IGNORE_poll           /* ppoll */
182 #define __IGNORE_select         /* pselect6 */
183 #define __IGNORE_epoll_wait     /* epoll_pwait */
184 #define __IGNORE_time           /* gettimeofday */
185 #define __IGNORE_uname          /* newuname */
186 #define __IGNORE_ustat          /* statfs */
187 #define __IGNORE_utime          /* utimes */
188 #define __IGNORE_vfork          /* clone */
189 
190 /* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */
191 #ifdef __NR_sync_file_range2
192 #define __IGNORE_sync_file_range
193 #endif
194 
195 /* Unmerged syscalls for AFS, STREAMS, etc. */
196 #define __IGNORE_afs_syscall
197 #define __IGNORE_getpmsg
198 #define __IGNORE_putpmsg
199 #define __IGNORE_vserver
200 EOF
201 }
202 
203 syscall_list() {
204     grep '^[0-9]' "$1" | sort -n | (
205         while read nr abi name entry ; do
206             cat <<EOF
207 #if !defined(__NR_${name}) && !defined(__IGNORE_${name})
208 #warning syscall ${name} not implemented
209 #endif
210 EOF
211         done
212     )
213 }
214 
215 (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
216 $* -E -x c - > /dev/null

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