[PATCH] Making it easy to add system calls

[PATCH] Making it easy to add system calls

[george anzinger]

[-- Attachment #1: Type: text/plain, Size: 1135 bytes --]

The attached patch defines a new file 
(.../include/asm-i386/sys_calls.h) which defines all the system call 
names and numbers.  The number is defined via "enum".  The normal call 
has a well defined entry point to name relationship, but not all do, 
so a way to do the "non-confroming" calls is included.  To add a new 
call all one needs to do is to add a line at the end of the list in 
this header file, for example:

SYS_CALL(clock_nanosleep) \

This will put "sys_clock_nanosleep" in the call table in entry.S and 
define the "__NR_clock_nanosleep" for unistd.  The last entry of the 
enum is NR_syscalls, thus defineing and keeping this symbol current.

Of course we will be adding no more system calls, but it does make 
things a _lot_ easier.

The binary from entry.S was compared to the prior binary and found to 
be the same.  A small set of the library stubs was produced and also 
compared.  And a system was built and tested.  All worked fine.


-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

[-- Attachment #2: syscall-2.5.64-1.0.patch --]
[-- Type: text/plain, Size: 24498 bytes --]

diff -urP -I '\$Id:.*Exp \$' -X /usr/src/patch.exclude linux-2.5.64-kb/arch/i386/kernel/entry.S linux/arch/i386/kernel/entry.S
--- linux-2.5.64-kb/arch/i386/kernel/entry.S	2003-03-05 15:11:21.000000000 -0800
+++ linux/arch/i386/kernel/entry.S	2003-03-05 15:15:43.000000000 -0800
@@ -562,274 +562,9 @@
 
 .data
 ENTRY(sys_call_table)
-	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
-	.long sys_exit
-	.long sys_fork
-	.long sys_read
-	.long sys_write
-	.long sys_open		/* 5 */
-	.long sys_close
-	.long sys_waitpid
-	.long sys_creat
-	.long sys_link
-	.long sys_unlink	/* 10 */
-	.long sys_execve
-	.long sys_chdir
-	.long sys_time
-	.long sys_mknod
-	.long sys_chmod		/* 15 */
-	.long sys_lchown16
-	.long sys_ni_syscall	/* old break syscall holder */
-	.long sys_stat
-	.long sys_lseek
-	.long sys_getpid	/* 20 */
-	.long sys_mount
-	.long sys_oldumount
-	.long sys_setuid16
-	.long sys_getuid16
-	.long sys_stime		/* 25 */
-	.long sys_ptrace
-	.long sys_alarm
-	.long sys_fstat
-	.long sys_pause
-	.long sys_utime		/* 30 */
-	.long sys_ni_syscall	/* old stty syscall holder */
-	.long sys_ni_syscall	/* old gtty syscall holder */
-	.long sys_access
-	.long sys_nice
-	.long sys_ni_syscall	/* 35 - old ftime syscall holder */
-	.long sys_sync
-	.long sys_kill
-	.long sys_rename
-	.long sys_mkdir
-	.long sys_rmdir		/* 40 */
-	.long sys_dup
-	.long sys_pipe
-	.long sys_times
-	.long sys_ni_syscall	/* old prof syscall holder */
-	.long sys_brk		/* 45 */
-	.long sys_setgid16
-	.long sys_getgid16
-	.long sys_signal
-	.long sys_geteuid16
-	.long sys_getegid16	/* 50 */
-	.long sys_acct
-	.long sys_umount	/* recycled never used phys() */
-	.long sys_ni_syscall	/* old lock syscall holder */
-	.long sys_ioctl
-	.long sys_fcntl		/* 55 */
-	.long sys_ni_syscall	/* old mpx syscall holder */
-	.long sys_setpgid
-	.long sys_ni_syscall	/* old ulimit syscall holder */
-	.long sys_olduname
-	.long sys_umask		/* 60 */
-	.long sys_chroot
-	.long sys_ustat
-	.long sys_dup2
-	.long sys_getppid
-	.long sys_getpgrp	/* 65 */
-	.long sys_setsid
-	.long sys_sigaction
-	.long sys_sgetmask
-	.long sys_ssetmask
-	.long sys_setreuid16	/* 70 */
-	.long sys_setregid16
-	.long sys_sigsuspend
-	.long sys_sigpending
-	.long sys_sethostname
-	.long sys_setrlimit	/* 75 */
-	.long sys_old_getrlimit
-	.long sys_getrusage
-	.long sys_gettimeofday
-	.long sys_settimeofday
-	.long sys_getgroups16	/* 80 */
-	.long sys_setgroups16
-	.long old_select
-	.long sys_symlink
-	.long sys_lstat
-	.long sys_readlink	/* 85 */
-	.long sys_uselib
-	.long sys_swapon
-	.long sys_reboot
-	.long old_readdir
-	.long old_mmap		/* 90 */
-	.long sys_munmap
-	.long sys_truncate
-	.long sys_ftruncate
-	.long sys_fchmod
-	.long sys_fchown16	/* 95 */
-	.long sys_getpriority
-	.long sys_setpriority
-	.long sys_ni_syscall	/* old profil syscall holder */
-	.long sys_statfs
-	.long sys_fstatfs	/* 100 */
-	.long sys_ioperm
-	.long sys_socketcall
-	.long sys_syslog
-	.long sys_setitimer
-	.long sys_getitimer	/* 105 */
-	.long sys_newstat
-	.long sys_newlstat
-	.long sys_newfstat
-	.long sys_uname
-	.long sys_iopl		/* 110 */
-	.long sys_vhangup
-	.long sys_ni_syscall	/* old "idle" system call */
-	.long sys_vm86old
-	.long sys_wait4
-	.long sys_swapoff	/* 115 */
-	.long sys_sysinfo
-	.long sys_ipc
-	.long sys_fsync
-	.long sys_sigreturn
-	.long sys_clone		/* 120 */
-	.long sys_setdomainname
-	.long sys_newuname
-	.long sys_modify_ldt
-	.long sys_adjtimex
-	.long sys_mprotect	/* 125 */
-	.long sys_sigprocmask
-	.long sys_ni_syscall	/* old "create_module" */ 
-	.long sys_init_module
-	.long sys_delete_module
-	.long sys_ni_syscall	/* 130:	old "get_kernel_syms" */
-	.long sys_quotactl
-	.long sys_getpgid
-	.long sys_fchdir
-	.long sys_bdflush
-	.long sys_sysfs		/* 135 */
-	.long sys_personality
-	.long sys_ni_syscall	/* reserved for afs_syscall */
-	.long sys_setfsuid16
-	.long sys_setfsgid16
-	.long sys_llseek	/* 140 */
-	.long sys_getdents
-	.long sys_select
-	.long sys_flock
-	.long sys_msync
-	.long sys_readv		/* 145 */
-	.long sys_writev
-	.long sys_getsid
-	.long sys_fdatasync
-	.long sys_sysctl
-	.long sys_mlock		/* 150 */
-	.long sys_munlock
-	.long sys_mlockall
-	.long sys_munlockall
-	.long sys_sched_setparam
-	.long sys_sched_getparam   /* 155 */
-	.long sys_sched_setscheduler
-	.long sys_sched_getscheduler
-	.long sys_sched_yield
-	.long sys_sched_get_priority_max
-	.long sys_sched_get_priority_min  /* 160 */
-	.long sys_sched_rr_get_interval
-	.long sys_nanosleep
-	.long sys_mremap
-	.long sys_setresuid16
-	.long sys_getresuid16	/* 165 */
-	.long sys_vm86
-	.long sys_ni_syscall	/* Old sys_query_module */
-	.long sys_poll
-	.long sys_nfsservctl
-	.long sys_setresgid16	/* 170 */
-	.long sys_getresgid16
-	.long sys_prctl
-	.long sys_rt_sigreturn
-	.long sys_rt_sigaction
-	.long sys_rt_sigprocmask	/* 175 */
-	.long sys_rt_sigpending
-	.long sys_rt_sigtimedwait
-	.long sys_rt_sigqueueinfo
-	.long sys_rt_sigsuspend
-	.long sys_pread64	/* 180 */
-	.long sys_pwrite64
-	.long sys_chown16
-	.long sys_getcwd
-	.long sys_capget
-	.long sys_capset	/* 185 */
-	.long sys_sigaltstack
-	.long sys_sendfile
-	.long sys_ni_syscall	/* reserved for streams1 */
-	.long sys_ni_syscall	/* reserved for streams2 */
-	.long sys_vfork		/* 190 */
-	.long sys_getrlimit
-	.long sys_mmap2
-	.long sys_truncate64
-	.long sys_ftruncate64
-	.long sys_stat64	/* 195 */
-	.long sys_lstat64
-	.long sys_fstat64
-	.long sys_lchown
-	.long sys_getuid
-	.long sys_getgid	/* 200 */
-	.long sys_geteuid
-	.long sys_getegid
-	.long sys_setreuid
-	.long sys_setregid
-	.long sys_getgroups	/* 205 */
-	.long sys_setgroups
-	.long sys_fchown
-	.long sys_setresuid
-	.long sys_getresuid
-	.long sys_setresgid	/* 210 */
-	.long sys_getresgid
-	.long sys_chown
-	.long sys_setuid
-	.long sys_setgid
-	.long sys_setfsuid	/* 215 */
-	.long sys_setfsgid
-	.long sys_pivot_root
-	.long sys_mincore
-	.long sys_madvise
-	.long sys_getdents64	/* 220 */
-	.long sys_fcntl64
-	.long sys_ni_syscall	/* reserved for TUX */
-	.long sys_ni_syscall
-	.long sys_gettid
-	.long sys_readahead	/* 225 */
-	.long sys_setxattr
-	.long sys_lsetxattr
-	.long sys_fsetxattr
-	.long sys_getxattr
-	.long sys_lgetxattr	/* 230 */
-	.long sys_fgetxattr
-	.long sys_listxattr
-	.long sys_llistxattr
-	.long sys_flistxattr
-	.long sys_removexattr	/* 235 */
-	.long sys_lremovexattr
-	.long sys_fremovexattr
-	.long sys_tkill
-	.long sys_sendfile64
-	.long sys_futex		/* 240 */
-	.long sys_sched_setaffinity
-	.long sys_sched_getaffinity
-	.long sys_set_thread_area
-	.long sys_get_thread_area
-	.long sys_io_setup	/* 245 */
-	.long sys_io_destroy
-	.long sys_io_getevents
-	.long sys_io_submit
-	.long sys_io_cancel
-	.long sys_fadvise64	/* 250 */
-	.long sys_ni_syscall
-	.long sys_exit_group
-	.long sys_lookup_dcookie
-	.long sys_epoll_create
-	.long sys_epoll_ctl	/* 255 */
-	.long sys_epoll_wait
- 	.long sys_remap_file_pages
- 	.long sys_set_tid_address
- 	.long sys_timer_create
- 	.long sys_timer_settime		/* 260 */
- 	.long sys_timer_gettime
- 	.long sys_timer_getoverrun
- 	.long sys_timer_delete
- 	.long sys_clock_settime
- 	.long sys_clock_gettime		/* 265 */
- 	.long sys_clock_getres
- 	.long sys_clock_nanosleep
- 
+	
+#define SYS_CALL_PTRS
+#include <asm/sys_calls.h>
+
  
 nr_syscalls=(.-sys_call_table)/4
diff -urP -I '\$Id:.*Exp \$' -X /usr/src/patch.exclude linux-2.5.64-kb/include/asm-i386/sys_calls.h linux/include/asm-i386/sys_calls.h
--- linux-2.5.64-kb/include/asm-i386/sys_calls.h	1969-12-31 16:00:00.000000000 -0800
+++ linux/include/asm-i386/sys_calls.h	2003-03-05 15:25:50.000000000 -0800
@@ -0,0 +1,311 @@
+#ifndef SYS_CALLS_F
+#define SYS_CALLS_F
+
+#ifdef SYS_CALL_PTRS
+/* 
+ * For some unknown reason asm code is run through cpp with the 
+ * -traditional flag on.  We set this up so we don't care...
+ */
+#ifndef __STDC__
+#define SYS_CALL_F(fun)  sys_/**/fun
+#define SYS_CALL(fun)  , sys_/**/fun
+#else
+#define SYS_CALL_F(fun)  sys_ ## fun
+#define SYS_CALL(fun)  , sys_ ## fun
+#endif
+#define SYS_CALL_R(fun)  , sys_ni_syscall
+#define SYS_CALL_D(x, fun)  , fun
+#define SYS_CALL_END 
+#endif
+
+#ifdef SYS_CALL_NUMS
+#define SYS_CALL(fun)  __NR_ ##fun,
+#define SYS_CALL_F(fun)  SYS_CALL(fun)
+#define SYS_CALL_R(fun)  __NR_ ##fun,
+#define SYS_CALL_D(x, fun)   __NR_ ## x,
+#define SYS_CALL_END NR_syscalls
+#endif
+#define do_calls          \
+SYS_CALL_F(restart_syscall)	\
+SYS_CALL(exit)	\
+SYS_CALL(fork)	\
+SYS_CALL(read)	\
+SYS_CALL(write)	\
+SYS_CALL(open)	\
+SYS_CALL(close)	\
+SYS_CALL(waitpid)	\
+SYS_CALL(creat)	\
+SYS_CALL(link)	\
+SYS_CALL(unlink)	\
+SYS_CALL(execve)	\
+SYS_CALL(chdir)	\
+SYS_CALL(time)	\
+SYS_CALL(mknod)	\
+SYS_CALL(chmod)	\
+SYS_CALL_D(lchown, sys_lchown16)	\
+SYS_CALL_R(break)	\
+SYS_CALL_D(oldstat, sys_stat )	\
+SYS_CALL(lseek)	\
+SYS_CALL(getpid)	\
+SYS_CALL(mount)	\
+SYS_CALL_D(umount, sys_oldumount)	\
+SYS_CALL_D(setuid, sys_setuid16)	\
+SYS_CALL_D(getuid, sys_getuid16)	\
+SYS_CALL(stime)	\
+SYS_CALL(ptrace)	\
+SYS_CALL(alarm)	\
+SYS_CALL_D(oldfstat, sys_fstat)	\
+SYS_CALL(pause)	\
+SYS_CALL(utime)	\
+SYS_CALL_R(stty)	\
+SYS_CALL_R(gtty)	\
+SYS_CALL(access)	\
+SYS_CALL(nice)	\
+SYS_CALL_R(ftime)	\
+SYS_CALL(sync)	\
+SYS_CALL(kill)	\
+SYS_CALL(rename)	\
+SYS_CALL(mkdir)	\
+SYS_CALL(rmdir)	\
+SYS_CALL(dup)	\
+SYS_CALL(pipe)	\
+SYS_CALL(times)	\
+SYS_CALL_R(prof)	\
+SYS_CALL(brk)	\
+SYS_CALL_D(setgid, sys_setgid16)	\
+SYS_CALL_D(getgid, sys_getgid16)	\
+SYS_CALL(signal)	\
+SYS_CALL_D(geteuid, sys_geteuid16)	\
+SYS_CALL_D(getegid, sys_getegid16)	\
+SYS_CALL(acct)	\
+SYS_CALL_D(umount2, sys_umount)	\
+SYS_CALL_R(lock)	\
+SYS_CALL(ioctl)	\
+SYS_CALL(fcntl)	\
+SYS_CALL_R(mpx)	\
+SYS_CALL(setpgid)	\
+SYS_CALL_R(ulimit)	\
+SYS_CALL_D(oldolduname, sys_olduname)	\
+SYS_CALL(umask)	\
+SYS_CALL(chroot)	\
+SYS_CALL(ustat)	\
+SYS_CALL(dup2)	\
+SYS_CALL(getppid)	\
+SYS_CALL(getpgrp)	\
+SYS_CALL(setsid)	\
+SYS_CALL(sigaction)	\
+SYS_CALL(sgetmask)	\
+SYS_CALL(ssetmask)	\
+SYS_CALL_D(setreuid, sys_setreuid16)	\
+SYS_CALL_D(setregid, sys_setregid16)	\
+SYS_CALL(sigsuspend)	\
+SYS_CALL(sigpending)	\
+SYS_CALL(sethostname)	\
+SYS_CALL(setrlimit)	\
+SYS_CALL_D(getrlimit, sys_old_getrlimit)	\
+SYS_CALL(getrusage)	\
+SYS_CALL(gettimeofday)	\
+SYS_CALL(settimeofday)	\
+SYS_CALL_D(getgroups, sys_getgroups16)	\
+SYS_CALL_D(setgroups, sys_setgroups16)	\
+SYS_CALL_D(select, old_select)	\
+SYS_CALL(symlink)	\
+SYS_CALL_D(oldlstat, sys_lstat)	\
+SYS_CALL(readlink)	\
+SYS_CALL(uselib)	\
+SYS_CALL(swapon)	\
+SYS_CALL(reboot)	\
+SYS_CALL_D(readdir, old_readdir)	\
+SYS_CALL_D(mmap, old_mmap)	\
+SYS_CALL(munmap)	\
+SYS_CALL(truncate)	\
+SYS_CALL(ftruncate)	\
+SYS_CALL(fchmod)	\
+SYS_CALL_D(fchown, sys_fchown16)	\
+SYS_CALL(getpriority)	\
+SYS_CALL(setpriority)	\
+SYS_CALL_R(profil)	\
+SYS_CALL(statfs)	\
+SYS_CALL(fstatfs)	\
+SYS_CALL(ioperm)	\
+SYS_CALL(socketcall)	\
+SYS_CALL(syslog)	\
+SYS_CALL(setitimer)	\
+SYS_CALL(getitimer)	\
+SYS_CALL_D(stat, sys_newstat)	\
+SYS_CALL_D(lstat, sys_newlstat)	\
+SYS_CALL_D(fstat, sys_newfstat)	\
+SYS_CALL_D(olduname, sys_uname)	\
+SYS_CALL(iopl)	\
+SYS_CALL(vhangup)	\
+SYS_CALL_R(idle)	\
+SYS_CALL(vm86old)	\
+SYS_CALL(wait4)	\
+SYS_CALL(swapoff)	\
+SYS_CALL(sysinfo)	\
+SYS_CALL(ipc)	\
+SYS_CALL(fsync)	\
+SYS_CALL(sigreturn)	\
+SYS_CALL(clone)	\
+SYS_CALL(setdomainname)	\
+SYS_CALL_D(uname, sys_newuname)	\
+SYS_CALL(modify_ldt)	\
+SYS_CALL(adjtimex)	\
+SYS_CALL(mprotect)	\
+SYS_CALL(sigprocmask)	\
+SYS_CALL_R(create_module)	\
+SYS_CALL(init_module)	\
+SYS_CALL(delete_module)	\
+SYS_CALL_R(get_kernel_syms)	\
+SYS_CALL(quotactl)	\
+SYS_CALL(getpgid)	\
+SYS_CALL(fchdir)	\
+SYS_CALL(bdflush)	\
+SYS_CALL(sysfs)	\
+SYS_CALL(personality)	\
+SYS_CALL_R(afs_syscall)	\
+SYS_CALL_D(setfsuid, sys_setfsuid16)	\
+SYS_CALL_D(setfsgid, sys_setfsgid16)	\
+SYS_CALL_D(_llseek, sys_llseek)	\
+SYS_CALL(getdents)	\
+SYS_CALL_D(_newselect, sys_select)	\
+SYS_CALL(flock)	\
+SYS_CALL(msync)	\
+SYS_CALL(readv)	\
+SYS_CALL(writev)	\
+SYS_CALL(getsid)	\
+SYS_CALL(fdatasync)	\
+SYS_CALL_D(_sysctl, sys_sysctl)	\
+SYS_CALL(mlock)	\
+SYS_CALL(munlock)	\
+SYS_CALL(mlockall)	\
+SYS_CALL(munlockall)	\
+SYS_CALL(sched_setparam)	\
+SYS_CALL(sched_getparam)	\
+SYS_CALL(sched_setscheduler)	\
+SYS_CALL(sched_getscheduler)	\
+SYS_CALL(sched_yield)	\
+SYS_CALL(sched_get_priority_max)	\
+SYS_CALL(sched_get_priority_min)	\
+SYS_CALL(sched_rr_get_interval)	\
+SYS_CALL(nanosleep)	\
+SYS_CALL(mremap)	\
+SYS_CALL_D(setresuid, sys_setresuid16)	\
+SYS_CALL_D(getresuid, sys_getresuid16)	\
+SYS_CALL(vm86)	\
+SYS_CALL_R(query_module)	\
+SYS_CALL(poll)	\
+SYS_CALL(nfsservctl)	\
+SYS_CALL_D(setresgid, sys_setresgid16)	\
+SYS_CALL_D(getresgid, sys_getresgid16)	\
+SYS_CALL(prctl)	\
+SYS_CALL(rt_sigreturn)	\
+SYS_CALL(rt_sigaction)	\
+SYS_CALL(rt_sigprocmask)	\
+SYS_CALL(rt_sigpending)	\
+SYS_CALL(rt_sigtimedwait)	\
+SYS_CALL(rt_sigqueueinfo)	\
+SYS_CALL(rt_sigsuspend)	\
+SYS_CALL(pread64)	\
+SYS_CALL(pwrite64)	\
+SYS_CALL_D(chown, sys_chown16)	\
+SYS_CALL(getcwd)	\
+SYS_CALL(capget)	\
+SYS_CALL(capset)	\
+SYS_CALL(sigaltstack)	\
+SYS_CALL(sendfile)	\
+SYS_CALL_R(getpmsg)	\
+SYS_CALL_R(putpmsg)	\
+SYS_CALL(vfork)	\
+SYS_CALL_D(ugetrlimit, sys_getrlimit)	\
+SYS_CALL(mmap2)	\
+SYS_CALL(truncate64)	\
+SYS_CALL(ftruncate64)	\
+SYS_CALL(stat64)	\
+SYS_CALL(lstat64)	\
+SYS_CALL(fstat64)	\
+SYS_CALL_D(lchown32, sys_lchown)	\
+SYS_CALL_D(getuid32, sys_getuid)	\
+SYS_CALL_D(getgid32, sys_getgid)	\
+SYS_CALL_D(geteuid32, sys_geteuid)	\
+SYS_CALL_D(getegid32, sys_getegid)	\
+SYS_CALL_D(setreuid32, sys_setreuid)	\
+SYS_CALL_D(setregid32, sys_setregid)	\
+SYS_CALL_D(getgroups32, sys_getgroups)	\
+SYS_CALL_D(setgroups32, sys_setgroups)	\
+SYS_CALL_D(fchown32, sys_fchown)	\
+SYS_CALL_D(setresuid32, sys_setresuid)	\
+SYS_CALL_D(getresuid32, sys_getresuid)	\
+SYS_CALL_D(setresgid32, sys_setresgid)	\
+SYS_CALL_D(getresgid32, sys_getresgid)	\
+SYS_CALL_D(chown32, sys_chown)	\
+SYS_CALL_D(setuid32, sys_setuid)	\
+SYS_CALL_D(setgid32, sys_setgid)	\
+SYS_CALL_D(setfsuid32, sys_setfsuid)	\
+SYS_CALL_D(setfsgid32, sys_setfsgid)	\
+SYS_CALL(pivot_root)	\
+SYS_CALL(mincore)	\
+SYS_CALL(madvise)	\
+SYS_CALL(getdents64)	\
+SYS_CALL(fcntl64)	\
+SYS_CALL_R(tux1)	\
+SYS_CALL_R(tux2)	\
+SYS_CALL(gettid)	\
+SYS_CALL(readahead)	\
+SYS_CALL(setxattr)	\
+SYS_CALL(lsetxattr)	\
+SYS_CALL(fsetxattr)	\
+SYS_CALL(getxattr)	\
+SYS_CALL(lgetxattr)	\
+SYS_CALL(fgetxattr)	\
+SYS_CALL(listxattr)	\
+SYS_CALL(llistxattr)	\
+SYS_CALL(flistxattr)	\
+SYS_CALL(removexattr)	\
+SYS_CALL(lremovexattr)	\
+SYS_CALL(fremovexattr)	\
+SYS_CALL(tkill)	\
+SYS_CALL(sendfile64)	\
+SYS_CALL(futex)	\
+SYS_CALL(sched_setaffinity)	\
+SYS_CALL(sched_getaffinity)	\
+SYS_CALL(set_thread_area)	\
+SYS_CALL(get_thread_area)	\
+SYS_CALL(io_setup)	\
+SYS_CALL(io_destroy)	\
+SYS_CALL(io_getevents)	\
+SYS_CALL(io_submit)	\
+SYS_CALL(io_cancel)	\
+SYS_CALL(fadvise64)	\
+SYS_CALL_R(empty1)	\
+SYS_CALL(exit_group)	\
+SYS_CALL(lookup_dcookie)	\
+SYS_CALL(epoll_create)	\
+SYS_CALL(epoll_ctl)	\
+SYS_CALL(epoll_wait)	\
+SYS_CALL(remap_file_pages)	\
+SYS_CALL(set_tid_address)	\
+SYS_CALL(timer_create)	\
+SYS_CALL(timer_settime)	\
+SYS_CALL(timer_gettime)	\
+SYS_CALL(timer_getoverrun)	\
+SYS_CALL(timer_delete)	\
+SYS_CALL(clock_settime)	\
+SYS_CALL(clock_gettime)	\
+SYS_CALL(clock_getres)	\
+SYS_CALL(clock_nanosleep)	\
+SYS_CALL_END
+
+
+#ifdef SYS_CALL_PTRS
+     .long do_calls
+#endif
+#ifdef SYS_CALL_NUMS
+
+enum {
+do_calls
+};
+#define __NR_madvise1 __NR_madvise
+#endif
+
+#endif
diff -urP -I '\$Id:.*Exp \$' -X /usr/src/patch.exclude linux-2.5.64-kb/include/asm-i386/unistd.h linux/include/asm-i386/unistd.h
--- linux-2.5.64-kb/include/asm-i386/unistd.h	2003-03-05 15:09:47.000000000 -0800
+++ linux/include/asm-i386/unistd.h	2003-03-05 15:18:14.000000000 -0800
@@ -4,277 +4,8 @@
 /*
  * This file contains the system call numbers.
  */
-
-#define __NR_restart_syscall      0
-#define __NR_exit		  1
-#define __NR_fork		  2
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_waitpid		  7
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_time		 13
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-#define __NR_break		 17
-#define __NR_oldstat		 18
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_umount		 22
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_ptrace		 26
-#define __NR_alarm		 27
-#define __NR_oldfstat		 28
-#define __NR_pause		 29
-#define __NR_utime		 30
-#define __NR_stty		 31
-#define __NR_gtty		 32
-#define __NR_access		 33
-#define __NR_nice		 34
-#define __NR_ftime		 35
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-#define __NR_prof		 44
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_umount2		 52
-#define __NR_lock		 53
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-#define __NR_mpx		 56
-#define __NR_setpgid		 57
-#define __NR_ulimit		 58
-#define __NR_oldolduname	 59
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_getpgrp		 65
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_sgetmask		 68
-#define __NR_ssetmask		 69
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_select		 82
-#define __NR_symlink		 83
-#define __NR_oldlstat		 84
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_readdir		 89
-#define __NR_mmap		 90
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-#define __NR_profil		 98
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-#define __NR_ioperm		101
-#define __NR_socketcall		102
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_olduname		109
-#define __NR_iopl		110
-#define __NR_vhangup		111
-#define __NR_idle		112
-#define __NR_vm86old		113
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_ipc		117
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_modify_ldt		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_sigprocmask	126
-#define __NR_create_module	127
-#define __NR_init_module	128
-#define __NR_delete_module	129
-#define __NR_get_kernel_syms	130
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_getsid		147
-#define __NR_fdatasync		148
-#define __NR__sysctl		149
-#define __NR_mlock		150
-#define __NR_munlock		151
-#define __NR_mlockall		152
-#define __NR_munlockall		153
-#define __NR_sched_setparam		154
-#define __NR_sched_getparam		155
-#define __NR_sched_setscheduler		156
-#define __NR_sched_getscheduler		157
-#define __NR_sched_yield		158
-#define __NR_sched_get_priority_max	159
-#define __NR_sched_get_priority_min	160
-#define __NR_sched_rr_get_interval	161
-#define __NR_nanosleep		162
-#define __NR_mremap		163
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-#define __NR_vm86		166
-#define __NR_query_module	167
-#define __NR_poll		168
-#define __NR_nfsservctl		169
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_prctl              172
-#define __NR_rt_sigreturn	173
-#define __NR_rt_sigaction	174
-#define __NR_rt_sigprocmask	175
-#define __NR_rt_sigpending	176
-#define __NR_rt_sigtimedwait	177
-#define __NR_rt_sigqueueinfo	178
-#define __NR_rt_sigsuspend	179
-#define __NR_pread64		180
-#define __NR_pwrite64		181
-#define __NR_chown		182
-#define __NR_getcwd		183
-#define __NR_capget		184
-#define __NR_capset		185
-#define __NR_sigaltstack	186
-#define __NR_sendfile		187
-#define __NR_getpmsg		188	/* some people actually want streams */
-#define __NR_putpmsg		189	/* some people actually want streams */
-#define __NR_vfork		190
-#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_pivot_root		217
-#define __NR_mincore		218
-#define __NR_madvise		219
-#define __NR_madvise1		219	/* delete when C lib stub is removed */
-#define __NR_getdents64		220
-#define __NR_fcntl64		221
-/* 223 is unused */
-#define __NR_gettid		224
-#define __NR_readahead		225
-#define __NR_setxattr		226
-#define __NR_lsetxattr		227
-#define __NR_fsetxattr		228
-#define __NR_getxattr		229
-#define __NR_lgetxattr		230
-#define __NR_fgetxattr		231
-#define __NR_listxattr		232
-#define __NR_llistxattr		233
-#define __NR_flistxattr		234
-#define __NR_removexattr	235
-#define __NR_lremovexattr	236
-#define __NR_fremovexattr	237
-#define __NR_tkill		238
-#define __NR_sendfile64		239
-#define __NR_futex		240
-#define __NR_sched_setaffinity	241
-#define __NR_sched_getaffinity	242
-#define __NR_set_thread_area	243
-#define __NR_get_thread_area	244
-#define __NR_io_setup		245
-#define __NR_io_destroy		246
-#define __NR_io_getevents	247
-#define __NR_io_submit		248
-#define __NR_io_cancel		249
-#define __NR_fadvise64		250
-
-#define __NR_exit_group		252
-#define __NR_lookup_dcookie	253
-#define __NR_epoll_create	254
-#define __NR_epoll_ctl		255
-#define __NR_epoll_wait		256
-#define __NR_remap_file_pages	257
-#define __NR_set_tid_address	258
-#define __NR_timer_create	259
-#define __NR_timer_settime	(__NR_timer_create+1)
-#define __NR_timer_gettime	(__NR_timer_create+2)
-#define __NR_timer_getoverrun	(__NR_timer_create+3)
-#define __NR_timer_delete	(__NR_timer_create+4)
-#define __NR_clock_settime	(__NR_timer_create+5)
-#define __NR_clock_gettime	(__NR_timer_create+6)
-#define __NR_clock_getres	(__NR_timer_create+7)
-#define __NR_clock_nanosleep	(__NR_timer_create+8)
-
-#define NR_syscalls 268
+#define SYS_CALL_NUMS
+#include <asm/sys_calls.h>
 
 /* user-visible error numbers are in the range -1 - -124: see <asm-i386/errno.h> */
 
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Re: [PATCH] Making it easy to add system calls

[Jeff Garzik]

Your patch makes it impossible to tell at an easy glance which syscall 
is which number.  The current code makes it quite obvious which numbers 
are assigned to which syscalls, and which syscall numbers are available 
for use.  We lose valuable information with this patch, even if it does 
wind up to be functionally equivalent.

	Jeff

Re: [PATCH] Making it easy to add system calls

[Linus Torvalds]

On Wed, 5 Mar 2003, george anzinger wrote:
> 
> SYS_CALL(clock_nanosleep) \
> 
> This will put "sys_clock_nanosleep" in the call table in entry.S and 
> define the "__NR_clock_nanosleep" for unistd.  The last entry of the 
> enum is NR_syscalls, thus defineing and keeping this symbol current.

Me no likee.

The fact is, we add system calls maybe a few times a year. Having to 
update two places instead of just one is not very onerous.

More importantly, the system call numbers should be something you have to 
think about, and a setup that makes it easy to merge new system calls with 
different numbers "by mistake" is a _bad_ setup.

Don't get me wrong - I'm not saying that "system calls should be hard to 
add, because only real men should add system calls". But I _am_ saying 
that it should be damn hard to add a system call by mistake at the wrong 
number, which is something your patch makes a lot easier than the current 
situation.

And I do believe that adding system calls should inherently be something
that you have to think twice about, even if one of the thoughs is just
literally writing out the number that you decided on. So while I don't 
think it should be "hard", it should definitely not be made any easier 
than it already is.

		Linus

Re: [PATCH] Making it easy to add system calls

[george anzinger]

Linus Torvalds wrote:
> 
> On Wed, 5 Mar 2003, george anzinger wrote:
> 
>>SYS_CALL(clock_nanosleep) \
>>
>>This will put "sys_clock_nanosleep" in the call table in entry.S and 
>>define the "__NR_clock_nanosleep" for unistd.  The last entry of the 
>>enum is NR_syscalls, thus defineing and keeping this symbol current.
> 
> 
> Me no likee.

Cool.  It was just a thought that I could not put down with out doing 
the code :)


-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

Re: [PATCH] Making it easy to add system calls

[george anzinger]

Jeff Garzik wrote:
> 
> Your patch makes it impossible to tell at an easy glance which syscall 
> is which number.  The current code makes it quite obvious which numbers 
> are assigned to which syscalls, and which syscall numbers are available 
> for use.  We lose valuable information with this patch, even if it does 
> wind up to be functionally equivalent.

Of course the numbers as well as comments on the inactive or unused 
entries could be added, just as they are today.  I had also considered 
the possiblility of adding the system call proto type as a parameter 
in the macro.  This could lead to a rather complete one entry 
description of the call.

Still, it seems to not be in favor, so I will let it drop.

-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

Re: [PATCH] Making it easy to add system calls

[Jamie Lokier]

george anzinger wrote:
> >Me no likee.
> 
> Cool.  It was just a thought that I could not put down with out doing 
> the code :)

It would be nice to have a single list of non-architecture-specific
system calls though.  Think of the number of times a system call has
been added to many architectures but left out, quite by accident, of
one or two until someone notices.

--  Jamie