libgloss/arm/linux-syscalls0.S

   1 /** Linux system call interface for the ARM processor.
   2  * Written by Shaun Jackman <sjackman@gmail.com>.
   3  * Copyright 2006 Pathway Connectivity
   4  *
   5  * Permission to use, copy, modify, and distribute this software
   6  * is freely granted, provided that this notice is preserved.
   7  */
   8
   9 #include "linux-syscall.h"
  10
  11 #if __thumb__
  12 # define FUNC(name) .type name, %function; .thumb_func; name:
  13 # define SET .thumb_set
  14 #else
  15 # define FUNC(name) .type name, %function; name:
  16 # define SET .set
  17 #endif
  18
  19 #define GLOBAL(name) .global name; FUNC(name)
  20 #define SIZE(name) .size name, .-name
  21
  22 # define SYSCALL4(name) \
  23         GLOBAL(_ ## name); \
  24         swi #SYS_ ## name; \
  25         b _set_errno; \
  26         SIZE(_ ## name)
  27
  28 # define SYSCALL6(name) \
  29         GLOBAL(_ ## name); \
  30         push { r4 - r5 }; \
  31         ldr r4, [sp, #8]; \
  32         ldr r5, [sp, #12]; \
  33         swi #SYS_ ## name; \
  34         pop { r4 - r5 }; \
  35         b _set_errno; \
  36         SIZE(_ ## name)
  37
  38 #define SYSCALL0(name) SYSCALL3(name)
  39 #define SYSCALL3(name) SYSCALL4(name)
  40 #define SYSCALL1(name) SYSCALL3(name)
  41 #define SYSCALL2(name) SYSCALL3(name)
  42 #define SYSCALL5(name) SYSCALL6(name)
  43
  44 SYSCALL1(alarm)
  45 SYSCALL1(brk)
  46 SYSCALL1(chdir)
  47 SYSCALL2(chmod)
  48 SYSCALL3(chown)
  49 SYSCALL1(close)
  50 SYSCALL1(dup)
  51 SYSCALL2(dup2)
  52 SYSCALL3(execve)
  53 SYSCALL1(exit)
  54 SYSCALL3(fcntl)
  55 SYSCALL2(fstat)
  56 SYSCALL2(ftruncate)
  57 SYSCALL3(getdents)
  58 SYSCALL0(getegid)
  59 SYSCALL0(geteuid)
  60 SYSCALL0(getgid)
  61 SYSCALL2(getgroups)
  62 SYSCALL1(getpgid)
  63 SYSCALL0(getpgrp)
  64 SYSCALL0(getpid)
  65 SYSCALL0(getuid)
  66 SYSCALL2(gettimeofday)
  67 SYSCALL3(ioctl)
  68 SYSCALL2(kill)
  69 SYSCALL3(lchown)
  70 SYSCALL2(link)
  71 SYSCALL3(lseek)
  72 SYSCALL2(lstat)
  73 SYSCALL2(mkdir)
  74 SYSCALL3(mknod)
  75 SYSCALL2(nanosleep)
  76 SYSCALL3(open)
  77 SYSCALL0(pause)
  78 SYSCALL1(pipe)
  79 SYSCALL3(read)
  80 SYSCALL3(readlink)
  81 SYSCALL4(reboot)
  82 SYSCALL1(rmdir)
  83 SYSCALL5(select)
  84 SYSCALL2(setpgid)
  85 SYSCALL1(setgid)
  86 SYSCALL0(setsid)
  87 SYSCALL1(setuid)
  88 SYSCALL3(sigprocmask)
  89 SYSCALL2(socketcall)
  90 SYSCALL2(stat)
  91 SYSCALL1(stime)
  92 SYSCALL2(symlink)
  93 SYSCALL1(sync)
  94 SYSCALL1(sysinfo)
  95 SYSCALL1(times)
  96 SYSCALL2(truncate)
  97 SYSCALL1(umask)
  98 SYSCALL1(uname)
  99 SYSCALL1(unlink)
 100 SYSCALL2(utime)
 101 SYSCALL0(vfork)
 102 SYSCALL4(wait4)
 103 SYSCALL3(write)
 104
 105 #define ALIAS(name) .GLOBAL name; SET name, _ ## name
 106
 107 ALIAS(alarm)
 108 ALIAS(chdir)
 109 ALIAS(chmod)
 110 ALIAS(chown)
 111 ALIAS(dup)
 112 ALIAS(dup2)
 113 ALIAS(ftruncate)
 114 ALIAS(getdents)
 115 ALIAS(getegid)
 116 ALIAS(geteuid)
 117 ALIAS(getgid)
 118 ALIAS(getgroups)
 119 ALIAS(getpgid)
 120 ALIAS(getpgrp)
 121 ALIAS(getuid)
 122 ALIAS(ioctl)
 123 ALIAS(lchown)
 124 ALIAS(lstat)
 125 ALIAS(mkdir)
 126 ALIAS(mknod)
 127 ALIAS(nanosleep)
 128 ALIAS(pause)
 129 ALIAS(pipe)
 130 ALIAS(readlink)
 131 ALIAS(rmdir)
 132 ALIAS(select)
 133 ALIAS(setgid)
 134 ALIAS(setpgid)
 135 ALIAS(setsid)
 136 ALIAS(setuid)
 137 ALIAS(sigprocmask)
 138 ALIAS(stime)
 139 ALIAS(symlink)
 140 ALIAS(sync)
 141 ALIAS(sysinfo)
 142 ALIAS(truncate)
 143 ALIAS(umask)
 144 ALIAS(uname)
 145 ALIAS(utime)
 146 ALIAS(vfork)
 147 ALIAS(wait4)
 148
 149 # define SOCKETCALL(name, NAME) \
 150         GLOBAL(name); \
 151         push { r0 - r3 }; \
 152         mov r0, #SYS_ ## NAME; \
 153         b _socketcall_tail; \
 154         SIZE(name)
 155
 156 FUNC(_socketcall_tail)
 157         mov r1, sp
 158         push { lr }
 159         bl _socketcall
 160         pop { r3 }
 161         add sp, #16
 162 #if defined(__ARM_ARCH_2__) || defined(__ARM_ARCH_3__) \
 163     || defined(__ARM_ARCH_3M__) || defined(__ARM_ARCH_4__)
 164         mov pc, r3
 165 #else
 166         bx r3
 167 #endif
 168         SIZE(_socketcall_tail)
 169
 170 #define SOCKETCALL2(name, NAME) SOCKETCALL(name, NAME)
 171 #define SOCKETCALL3(name, NAME) SOCKETCALL(name, NAME)
 172 #define SOCKETCALL4(name, NAME) SOCKETCALL(name, NAME)
 173 #define SOCKETCALL5(name, NAME) SOCKETCALL(name, NAME)
 174 #define SOCKETCALL6(name, NAME) SOCKETCALL(name, NAME)
 175
 176 SOCKETCALL3(accept, ACCEPT)
 177 SOCKETCALL3(bind, BIND)
 178 SOCKETCALL3(connect, CONNECT)
 179 SOCKETCALL3(getpeername, GETPEERNAME)
 180 SOCKETCALL3(getsockname, GETSOCKNAME)
 181 SOCKETCALL5(getsockopt, GETSOCKOPT)
 182 SOCKETCALL2(listen, LISTEN)
 183 SOCKETCALL4(recv, RECV)
 184 SOCKETCALL6(recvfrom, RECVFROM)
 185 SOCKETCALL3(recvmsg, RECVMSG)
 186 SOCKETCALL4(send, SEND)
 187 SOCKETCALL3(sendmsg, SENDMSG)
 188 SOCKETCALL6(sendto, SENDTO)
 189 SOCKETCALL5(setsockopt, SETSOCKOPT)
 190 SOCKETCALL2(shutdown, SHUTDOWN)
 191 SOCKETCALL3(socket, SOCKET)
 192 SOCKETCALL4(socketpair, SOCKETPAIR)