diff options
Diffstat (limited to 'libgloss/arm/linux-syscalls0.S')
| -rw-r--r-- | libgloss/arm/linux-syscalls0.S | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/libgloss/arm/linux-syscalls0.S b/libgloss/arm/linux-syscalls0.S new file mode 100644 index 000000000..aae861458 --- /dev/null +++ b/libgloss/arm/linux-syscalls0.S @@ -0,0 +1,196 @@ +/** Linux system call interface for the ARM processor. + * Written by Shaun Jackman <sjackman@gmail.com>. + * Copyright 2006 Pathway Connectivity + * + * Permission to use, copy, modify, and distribute this software + * is freely granted, provided that this notice is preserved. + */ + +#include "linux-syscall.h" + +#if __thumb__ +# define FUNC(name) .type name, %function; .thumb_func; name: +# define SET .thumb_set +#else +# define FUNC(name) .type name, %function; name: +# define SET .set +#endif + +#define GLOBAL(name) .global name; FUNC(name) +#define SIZE(name) .size name, .-name + +#if __thumb__ + +# define SYSCALL0(name) \ + GLOBAL(_ ## name); \ + mov r12, r7; \ + mov r7, #SYS_ ## name; \ + swi; \ + mov r7, r12; \ + b _set_errno; \ + SIZE(_ ## name) + +/* static int _syscall3(int a, int b, int c, int number); */ +FUNC(_syscall3) + push { r7 } + mov r7, r3 + swi + pop { r7 } + b _set_errno + SIZE(_syscall3) + +# define SYSCALL3(name) \ + GLOBAL(_ ## name); \ + mov r3, #SYS_ ## name; \ + b _syscall3; \ + SIZE(_ ## name) + +# define SYSCALL6(name) \ + GLOBAL(_ ## name); \ + push { r4 - r5, r7 }; \ + ldr r4, [sp, #12]; \ + ldr r5, [sp, #16]; \ + mov r7, #SYS_ ## name; \ + swi; \ + pop { r4 - r5, r7 }; \ + b _set_errno; \ + SIZE(_ ## name) + +# define SYSCALL4(name) SYSCALL6(name) + +#else /* __thumb__ */ + +# define SYSCALL4(name) \ + GLOBAL(_ ## name); \ + swi #SYS_ ## name; \ + b _set_errno; \ + SIZE(_ ## name) + +# define SYSCALL6(name) \ + GLOBAL(_ ## name); \ + push { r4 - r5 }; \ + ldr r4, [sp, #8]; \ + ldr r5, [sp, #12]; \ + swi #SYS_ ## name; \ + pop { r4 - r5 }; \ + b _set_errno; \ + SIZE(_ ## name) + +#define SYSCALL0(name) SYSCALL3(name) +#define SYSCALL3(name) SYSCALL4(name) + +#endif /* __thumb__ */ + +#define SYSCALL1(name) SYSCALL3(name) +#define SYSCALL2(name) SYSCALL3(name) +#define SYSCALL5(name) SYSCALL6(name) + +SYSCALL1(alarm) +SYSCALL1(brk) +SYSCALL1(chdir) +SYSCALL2(chmod) +SYSCALL3(chown) +SYSCALL1(close) +SYSCALL1(dup) +SYSCALL2(dup2) +SYSCALL3(execve) +SYSCALL1(exit) +SYSCALL3(fcntl) +SYSCALL2(fstat) +SYSCALL3(getdents) +SYSCALL0(getpid) +SYSCALL2(gettimeofday) +SYSCALL3(ioctl) +SYSCALL2(kill) +SYSCALL2(link) +SYSCALL3(lseek) +SYSCALL2(lstat) +SYSCALL2(mkdir) +SYSCALL3(mknod) +SYSCALL2(nanosleep) +SYSCALL3(open) +SYSCALL3(read) +SYSCALL3(readlink) +SYSCALL4(reboot) +SYSCALL1(rmdir) +SYSCALL5(select) +SYSCALL2(socketcall) +SYSCALL2(stat) +SYSCALL1(stime) +SYSCALL2(symlink) +SYSCALL1(sysinfo) +SYSCALL1(times) +SYSCALL2(truncate) +SYSCALL1(umask) +SYSCALL1(unlink) +SYSCALL2(utime) +SYSCALL0(vfork) +SYSCALL4(wait4) +SYSCALL3(write) + +#define ALIAS(name) .GLOBAL name; SET name, _ ## name + +ALIAS(alarm) +ALIAS(chdir) +ALIAS(chmod) +ALIAS(chown) +ALIAS(dup) +ALIAS(dup2) +ALIAS(getdents) +ALIAS(ioctl) +ALIAS(lstat) +ALIAS(mkdir) +ALIAS(mknod) +ALIAS(nanosleep) +ALIAS(readlink) +ALIAS(reboot) +ALIAS(rmdir) +ALIAS(select) +ALIAS(stime) +ALIAS(symlink) +ALIAS(sysinfo) +ALIAS(truncate) +ALIAS(umask) +ALIAS(utime) +ALIAS(vfork) +ALIAS(wait4) + +# define SOCKETCALL(name, NAME) \ + GLOBAL(name); \ + push { r0 - r3 }; \ + mov r0, #SYS_ ## NAME; \ + b _socketcall_tail; \ + SIZE(name) + +FUNC(_socketcall_tail) + mov r1, sp + push { lr } + bl _socketcall + pop { r3 } + add sp, #16 + bx r3 + SIZE(_socketcall_tail) + +#define SOCKETCALL2(name, NAME) SOCKETCALL(name, NAME) +#define SOCKETCALL3(name, NAME) SOCKETCALL(name, NAME) +#define SOCKETCALL4(name, NAME) SOCKETCALL(name, NAME) +#define SOCKETCALL5(name, NAME) SOCKETCALL(name, NAME) +#define SOCKETCALL6(name, NAME) SOCKETCALL(name, NAME) + +SOCKETCALL3(accept, ACCEPT) +SOCKETCALL3(bind, BIND) +SOCKETCALL3(connect, CONNECT) +SOCKETCALL3(getpeername, GETPEERNAME) +SOCKETCALL3(getsockname, GETSOCKNAME) +SOCKETCALL5(getsockopt, GETSOCKOPT) +SOCKETCALL2(listen, LISTEN) +SOCKETCALL4(recv, RECV) +SOCKETCALL6(recvfrom, RECVFROM) +SOCKETCALL3(recvmsg, RECVMSG) +SOCKETCALL4(send, SEND) +SOCKETCALL3(sendmsg, SENDMSG) +SOCKETCALL6(sendto, SENDTO) +SOCKETCALL5(setsockopt, SETSOCKOPT) +SOCKETCALL2(shutdown, SHUTDOWN) +SOCKETCALL3(socket, SOCKET) +SOCKETCALL4(socketpair, SOCKETPAIR) |