/* * sys32.S: I-cache tricks for 32-bit compatability layer simple * conversions. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) * Copyright (C) 2000 Ken Aaker (kdaaker@rchland.vnet.ibm.com) * For PPC ABI convention is parms in Regs 3-10. * The router in entry.S clears the high 32 bits in the first * 4 arguments (R3-R6). * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include "ppc_asm.h" #include #include /* NOTE: call as jump breaks return stack, we have to avoid that */ .text _GLOBAL(sys32_mmap) clrldi r7, r7, 32 /* int fd parm */ clrldi r8, r8, 32 /* off_t offset parm */ b .sys_mmap _GLOBAL(sys32_lseek) extsw r4,r4 /* sign extend off_t offset parm */ b .sys_lseek _GLOBAL(sys32_chmod) /* Ken Aaker.. hmmm maybe I don't need to do anything here */ b .sys_chmod _GLOBAL(sys32_mknod) /* Ken Aaker.. hmmm maybe I don't need to do anything here */ b .sys_mknod _GLOBAL(sys32_sendto) clrldi r7, r7, 32 /* struct sockaddr *addr parm */ clrldi r8, r8, 32 /* int addr_len parm */ b .sys_sendto _GLOBAL(sys32_recvfrom) clrldi r7, r7, 32 /* struct sockaddr *addr parm */ clrldi r8, r8, 32 /* int *addr_len parm */ b .sys_recvfrom _GLOBAL(sys32_getsockopt) clrldi r7, r7, 32 /* int *optlen parm */ b .sys_getsockopt _GLOBAL(sys32_bdflush) extsw r4,r4 /* sign extend long data parm */ b .sys_bdflush _GLOBAL(sys32_mmap2) clrldi r7, r7, 32 /* unsigned long fd parm */ extsw r8, r8 /* off_t offset */ b .sys_mmap _GLOBAL(sys32_socketcall) /* r3=call, r4=args */ cmpwi r3, 1 blt- .do_einval cmpwi r3, 17 bgt- .do_einval subi r3, r3, 1 /* index into socketcall_table vectors and jmp */ sldi r3, r3, 3 /* each entry is 8 bytes */ LOADADDR(r10,.socketcall_table_begin) ldx r10, r10, r3 mtctr r10 bctr /* Socket function vectored fix ups for 32 bit */ _STATIC(do_sys_socket) /* sys_socket(int, int, int) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) lwa r5,8(r10) b .sys_socket _STATIC(do_sys_bind) /* sys_bind(int fd, struct sockaddr *, int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwa r5,8(r10) b .sys_bind _STATIC(do_sys_connect) /* sys_connect(int, struct sockaddr *, int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwa r5,8(r10) b .sys_connect _STATIC(do_sys_listen) /* sys_listen(int, int) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) b .sys_listen _STATIC(do_sys_accept) /* sys_accept(int, struct sockaddr *, int *) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) b .sys_accept _STATIC(do_sys_getsockname) /* sys_getsockname(int, struct sockaddr *, int *) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) b .sys_getsockname _STATIC(do_sys_getpeername) /* sys_getpeername(int, struct sockaddr *, int *) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) b .sys_getpeername _STATIC(do_sys_socketpair) /* sys_socketpair(int, int, int, int *) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) lwa r5,8(r10) lwz r6,12(r10) b .sys_socketpair _STATIC(do_sys_send) /* sys_send(int, void *, size_t, unsigned int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) lwz r6,12(r10) b .sys_send _STATIC(do_sys_recv) /* sys_recv(int, void *, size_t, unsigned int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) lwz r6,12(r10) b .sys_recv _STATIC(do_sys_sendto) /* sys32_sendto(int, u32, __kernel_size_t32, unsigned int, u32, int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) lwz r6,12(r10) lwz r7,16(r10) lwa r8,20(r10) b .sys32_sendto _STATIC(do_sys_recvfrom) /* sys32_recvfrom(int, u32, __kernel_size_t32, unsigned int, u32, u32) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwz r5,8(r10) lwz r6,12(r10) lwz r7,16(r10) lwz r8,20(r10) b .sys32_recvfrom _STATIC(do_sys_shutdown) /* sys_shutdown(int, int) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) b .sys_shutdown _STATIC(do_sys_setsockopt) /* sys32_setsockopt(int, int, int, char *, int) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) lwa r5,8(r10) lwz r6,12(r10) lwa r7,16(r10) b .sys32_setsockopt _STATIC(do_sys_getsockopt) /* sys32_getsockopt(int, int, int, u32, u32) */ mr r10,r4 lwa r3,0(r10) lwa r4,4(r10) lwa r5,8(r10) lwz r6,12(r10) lwz r7,16(r10) b .sys32_getsockopt _STATIC(do_sys_sendmsg) /* sys32_sendmsg(int, struct msghdr32 *, unsigned int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwa r5,8(r10) b .sys32_sendmsg _STATIC(do_sys_recvmsg) /* sys32_recvmsg(int, struct msghdr32 *, unsigned int) */ mr r10,r4 lwa r3,0(r10) lwz r4,4(r10) lwa r5,8(r10) b .sys32_recvmsg _STATIC(do_einval) li r3,-EINVAL b .ret_from_syscall_1 _STATIC(do_efault) li r3,-EFAULT b .ret_from_syscall_1 .data .align 8 _GLOBAL(socketcall_table_begin) .llong .do_sys_socket .llong .do_sys_bind .llong .do_sys_connect .llong .do_sys_listen .llong .do_sys_accept .llong .do_sys_getsockname .llong .do_sys_getpeername .llong .do_sys_socketpair .llong .do_sys_send .llong .do_sys_recv .llong .do_sys_sendto .llong .do_sys_recvfrom .llong .do_sys_shutdown .llong .do_sys_setsockopt .llong .do_sys_getsockopt .llong .do_sys_sendmsg .llong .do_sys_recvmsg _GLOBAL(socketcall_table_end) .section __ex_table,"a" .align 3 .llong .socketcall_table_begin .llong 0 .llong .socketcall_table_end .llong .do_efault .previous
