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authorEric Andersen <andersen@codepoet.org>2000-07-07 00:31:19 +0000
committerEric Andersen <andersen@codepoet.org>2000-07-07 00:31:19 +0000
commit8be74df1ae54f6b348f63602a272dd2b58ef88a6 (patch)
tree6451152e27519431312504d07222029b04372222
parentbf299c2d305f9310d908dcc3cf2073eeb882be01 (diff)
A few updates.
-Erik
-rw-r--r--include/sys/syscall.h213
-rw-r--r--include/syscall.h11
-rw-r--r--libc/sysdeps/linux/common/sysdep.h127
3 files changed, 160 insertions, 191 deletions
diff --git a/include/sys/syscall.h b/include/sys/syscall.h
index f4ca99f18..7eca4f086 100644
--- a/include/sys/syscall.h
+++ b/include/sys/syscall.h
@@ -1,182 +1,35 @@
-#ifndef _SYS_SYSCALL_H
-#define _SYS_SYSCALL_H
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#define SYS_setup 0 /* Used only by init, to get system going. */
-#define SYS_exit 1
-#define SYS_fork 2
-#define SYS_read 3
-#define SYS_write 4
-#define SYS_open 5
-#define SYS_close 6
-#define SYS_waitpid 7
-#define SYS_creat 8
-#define SYS_link 9
-#define SYS_unlink 10
-#define SYS_execve 11
-#define SYS_chdir 12
-#define SYS_time 13
-#define SYS_mknod 14
-#define SYS_prev_mknod 14
-#define SYS_chmod 15
-#define SYS_chown 16
-#define SYS_break 17
-#define SYS_oldstat 18
-#define SYS_lseek 19
-#define SYS_getpid 20
-#define SYS_mount 21
-#define SYS_umount 22
-#define SYS_setuid 23
-#define SYS_getuid 24
-#define SYS_stime 25
-#define SYS_ptrace 26
-#define SYS_alarm 27
-#define SYS_oldfstat 28
-#define SYS_pause 29
-#define SYS_utime 30
-#define SYS_stty 31
-#define SYS_gtty 32
-#define SYS_access 33
-#define SYS_nice 34
-#define SYS_ftime 35
-#define SYS_sync 36
-#define SYS_kill 37
-#define SYS_rename 38
-#define SYS_mkdir 39
-#define SYS_rmdir 40
-#define SYS_dup 41
-#define SYS_pipe 42
-#define SYS_times 43
-#define SYS_prof 44
-#define SYS_brk 45
-#define SYS_setgid 46
-#define SYS_getgid 47
-#define SYS_signal 48
-#define SYS_geteuid 49
-#define SYS_getegid 50
-#define SYS_acct 51
-#define SYS_phys 52
-#define SYS_lock 53
-#define SYS_ioctl 54
-#define SYS_fcntl 55
-#define SYS_mpx 56
-#define SYS_setpgid 57
-#define SYS_ulimit 58
-#define SYS_oldolduname 59
-#define SYS_umask 60
-#define SYS_chroot 61
-#define SYS_prev_ustat 62
-#define SYS_dup2 63
-#define SYS_getppid 64
-#define SYS_getpgrp 65
-#define SYS_setsid 66
-#define SYS_sigaction 67
-#define SYS_siggetmask 68
-#define SYS_sigsetmask 69
-#define SYS_setreuid 70
-#define SYS_setregid 71
-#define SYS_sigsuspend 72
-#define SYS_sigpending 73
-#define SYS_sethostname 74
-#define SYS_setrlimit 75
-#define SYS_getrlimit 76
-#define SYS_getrusage 77
-#define SYS_gettimeofday 78
-#define SYS_settimeofday 79
-#define SYS_getgroups 80
-#define SYS_setgroups 81
-#define SYS_select 82
-#define SYS_symlink 83
-#define SYS_oldlstat 84
-#define SYS_readlink 85
-#define SYS_uselib 86
-#define SYS_swapon 87
-#define SYS_reboot 88
-#define SYS_readdir 89
-#define SYS_mmap 90
-#define SYS_munmap 91
-#define SYS_truncate 92
-#define SYS_ftruncate 93
-#define SYS_fchmod 94
-#define SYS_fchown 95
-#define SYS_getpriority 96
-#define SYS_setpriority 97
-#define SYS_profil 98
-#define SYS_statfs 99
-#define SYS_fstatfs 100
-#define SYS_ioperm 101
-#define SYS_socketcall 102
-#define SYS_klog 103
-#define SYS_setitimer 104
-#define SYS_getitimer 105
-#define SYS_prev_stat 106
-#define SYS_prev_lstat 107
-#define SYS_prev_fstat 108
-#define SYS_stat 106
-#define SYS_lstat 107
-#define SYS_fstat 108
-#define SYS_olduname 109
-#define SYS_iopl 110
-#define SYS_vhangup 111
-#define SYS_idle 112
-#define SYS_vm86old 113
-#define SYS_wait4 114
-#define SYS_swapoff 115
-#define SYS_sysinfo 116
-#define SYS_ipc 117
-#define SYS_fsync 118
-#define SYS_sigreturn 119
-#define SYS_clone 120
-#define SYS_setdomainname 121
-#define SYS_uname 122
-#define SYS_modify_ldt 123
-#define SYS_adjtimex 124
-#define SYS_mprotect 125
-#define SYS_sigprocmask 126
-#define SYS_create_module 127
-#define SYS_init_module 128
-#define SYS_delete_module 129
-#define SYS_get_kernel_syms 130
-#define SYS_quotactl 131
-#define SYS_getpgid 132
-#define SYS_fchdir 133
-#define SYS_bdflush 134
-#define SYS_sysfs 135
-#define SYS_personality 136
-#define SYS_afs_syscall 137 /* Syscall for Andrew File System */
-#define SYS_setfsuid 138
-#define SYS_setfsgid 139
-#define SYS__llseek 140
-#define SYS_getdents 141
-#define SYS__newselect 142
-#define SYS_flock 143
-#define SYS_syscall_flock SYS_flock
-#define SYS_msync 144
-#define SYS_readv 145
-#define SYS_syscall_readv SYS_readv
-#define SYS_writev 146
-#define SYS_syscall_writev SYS_writev
-#define SYS_getsid 147
-#define SYS_fdatasync 148
-#define SYS__sysctl 149
-#define SYS_mlock 150
-#define SYS_munlock 151
-#define SYS_mlockall 152
-#define SYS_munlockall 153
-#define SYS_sched_setparam 154
-#define SYS_sched_getparam 155
-#define SYS_sched_setscheduler 156
-#define SYS_sched_getscheduler 157
-#define SYS_sched_yield 158
-#define SYS_sched_get_priority_max 159
-#define SYS_sched_get_priority_min 160
-#define SYS_sched_rr_get_interval 161
-#define SYS_nanosleep 162
-#define SYS_mremap 163
-#define SYS_setresuid 164
-#define SYS_getresuid 165
-#define SYS_vm86 166
-#define SYS_query_module 167
-#define SYS_poll 168
-#define SYS_syscall_poll SYS_poll
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-#endif /* <sys/syscall.h> */
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SYSCALL_H
+#define _SYSCALL_H 1
+
+/* This file should list the numbers of the system the system knows.
+ But instead of duplicating this we use the information available
+ from the kernel sources. */
+#include <asm/unistd.h>
+
+#ifndef _LIBC
+/* The Linux kernel header file defines macros `__NR_<name>', but some
+ programs expect the traditional form `SYS_<name>'. So in building libc
+ we scan the kernel's list and produce <bits/syscall.h> with macros for
+ all the `SYS_' names. */
+# include <bits/syscall.h>
+#endif
+
+#endif
diff --git a/include/syscall.h b/include/syscall.h
index 332b7dd4a..4c3057844 100644
--- a/include/syscall.h
+++ b/include/syscall.h
@@ -1,12 +1 @@
-#if 0
-#include <errno.h>
-#endif
-#define __check_errno(__res) ((__res) >= 0)
-
-#ifdef __mc68000__
-#include <m68k/syscall.h>
-#else
-#include <i386/syscall.h>
-#endif
-
#include <sys/syscall.h>
diff --git a/libc/sysdeps/linux/common/sysdep.h b/libc/sysdeps/linux/common/sysdep.h
new file mode 100644
index 000000000..439062d6b
--- /dev/null
+++ b/libc/sysdeps/linux/common/sysdep.h
@@ -0,0 +1,127 @@
+/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sys/syscall.h>
+
+/* Not that using a `PASTE' macro loses. */
+#ifdef __STDC__
+
+#ifdef __ELF__
+
+#define SYSCALL_WEAK_ALIAS(alias,orig) \
+ .weak alias; \
+ alias=__libc_##orig
+
+/*
+#ifdef _POSIX_THREADS
+*/
+
+#if 1
+
+#ifdef PTHREAD_KERNEL
+
+/* Use the regular ELF conventions about underscores, and provide the
+ weak symbol, as required */
+#define SYSCALL__(name,args) PSEUDO (__machdep_sys_##name, name, args) \
+.weak machdep_sys_##name; \
+ machdep_sys_##name = __machdep_sys_##name; \
+.type __machdep_sys_##name,@function; \
+.type machdep_sys_##name,@function; \
+.L__machdep_sys_##name##end: .size __machdep_sys_##name,.L__machdep_sys_##name##end - __machdep_sys_##name
+
+#define SYSCALL(name,args) PSEUDO (__machdep_sys_##name, name, args) \
+.weak machdep_sys_##name; \
+ machdep_sys_##name = __machdep_sys_##name; \
+.type __machdep_sys_##name,@function; \
+.type machdep_sys_##name,@function; \
+.L__machdep_sys_##name##end: .size __machdep_sys_##name,.L__machdep_sys_##name##end - __machdep_sys_##name
+
+#else /* PTHREAD_KERNEL */
+
+/* Use the regular ELF conventions about underscores, and provide the
+ weak symbol, as required */
+#define SYSCALL__(name,args) PSEUDO (__libc_##name, name, args) \
+.weak __##name; \
+.weak name; \
+ __##name = __libc_##name; \
+ name = __libc_##name; \
+.type __libc_##name,@function; \
+.type name,@function; \
+.type __##name,@function; \
+.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
+
+#define SYSCALL(name,args) PSEUDO (__libc_##name, name, args) \
+.weak name; \
+ name = __libc_##name; \
+.type __libc_##name,@function; \
+.type name,@function; \
+.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
+
+#endif /* PTHREAD_KERNEL */
+
+#else /* _POSIX_THREADS */
+
+/* Use the regular ELF conventions about underscores, and provide the
+ weak symbol, as required */
+#define SYSCALL__(name,args) PSEUDO (__libc_##name, name, args) \
+.weak name; \
+ __##name = __libc_##name; \
+ name = __libc_##name; \
+.type __libc_##name,@function; \
+.type name,@function; \
+.type __##name,@function; \
+.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
+
+#define SYSCALL(name,args) PSEUDO (__libc_##name, name, args) \
+ name = __libc_##name; \
+.type __libc_##name,@function; \
+.type name,@function; \
+.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
+
+#endif /* _POSIX_THREADS */
+
+#else /* __ELF__ */
+
+#define SYSCALL_WEAK_ALIAS(alias,orig)
+
+/* Regular a.out definition */
+#define SYSCALL__(name,args) PSEUDO (__##name, name, args)
+#define SYSCALL(name,args) PSEUDO (name, name, args)
+
+#endif /* __ELF__ */
+
+#else /* __STDC__ */
+
+#define SYSCALL__(name,args) PSEUDO (__/**/name, name, args)
+#define SYSCALL(name,args) PSEUDO (name, name, args)
+
+#endif /* __STDC__ */
+
+/* Machine-dependent sysdep.h files are expected to define the macro
+ PSEUDO (function_name, syscall_name) to emit assembly code to define the
+ C-callable function FUNCTION_NAME to do system call SYSCALL_NAME.
+ r0 and r1 are the system call outputs. movl should be defined as
+ an instruction such that "movl r1, r0" works. ret should be defined
+ as the return instruction. */
+
+
+#if !defined(HAVE_GNU_LD) && !defined (__ELF__)
+#define ___errno _errno
+#endif
+
+#define HAVE_SYSCALLS