| /* $Id: sys32.S,v 1.12 2000/03/24 04:17:37 davem Exp $ |
| * sys32.S: I-cache tricks for 32-bit compatibility layer simple |
| * conversions. |
| * |
| * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) |
| * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) |
| */ |
| |
| #include <linux/config.h> |
| #include <asm/errno.h> |
| |
| /* NOTE: call as jump breaks return stack, we have to avoid that */ |
| |
| .text |
| |
| #define SIGN1(STUB,SYSCALL,REG1) \ |
| .align 32; \ |
| .globl STUB; \ |
| STUB: sethi %hi(SYSCALL), %g1; \ |
| jmpl %g1 + %lo(SYSCALL), %g0; \ |
| sra REG1, 0, REG1 |
| |
| #define SIGN2(STUB,SYSCALL,REG1,REG2) \ |
| .align 32; \ |
| .globl STUB; \ |
| STUB: sethi %hi(SYSCALL), %g1; \ |
| sra REG1, 0, REG1; \ |
| jmpl %g1 + %lo(SYSCALL), %g0; \ |
| sra REG2, 0, REG2 |
| |
| #define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \ |
| .align 32; \ |
| .globl STUB; \ |
| STUB: sra REG1, 0, REG1; \ |
| sethi %hi(SYSCALL), %g1; \ |
| sra REG2, 0, REG2; \ |
| jmpl %g1 + %lo(SYSCALL), %g0; \ |
| sra REG3, 0, REG3 |
| |
| #define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \ |
| .align 32; \ |
| .globl STUB; \ |
| STUB: sra REG1, 0, REG1; \ |
| sethi %hi(SYSCALL), %g1; \ |
| sra REG2, 0, REG2; \ |
| sra REG3, 0, REG3; \ |
| jmpl %g1 + %lo(SYSCALL), %g0; \ |
| sra REG4, 0, REG4 |
| |
| SIGN1(sys32_exit, sparc_exit, %o0) |
| SIGN1(sys32_exit_group, sys_exit_group, %o0) |
| SIGN1(sys32_wait4, compat_sys_wait4, %o2) |
| SIGN1(sys32_creat, sys_creat, %o1) |
| SIGN1(sys32_mknod, sys_mknod, %o1) |
| SIGN1(sys32_perfctr, sys_perfctr, %o0) |
| SIGN1(sys32_umount, sys_umount, %o1) |
| SIGN1(sys32_signal, sys_signal, %o0) |
| SIGN1(sys32_access, sys_access, %o1) |
| SIGN1(sys32_msync, sys_msync, %o2) |
| SIGN2(sys32_reboot, sys_reboot, %o0, %o1) |
| SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) |
| SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) |
| SIGN1(sys32_sethostname, sys_sethostname, %o1) |
| SIGN1(sys32_swapon, sys_swapon, %o1) |
| SIGN1(sys32_sigaction, compat_sys_sigaction, %o0) |
| SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) |
| SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) |
| SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) |
| SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) |
| SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) |
| SIGN1(sys32_setxattr, sys_setxattr, %o4) |
| SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4) |
| SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4) |
| SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0) |
| SIGN1(sys32_flistxattr, sys_flistxattr, %o0) |
| SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0) |
| SIGN2(sys32_tkill, sys_tkill, %o0, %o1) |
| SIGN1(sys32_epoll_create, sys_epoll_create, %o0) |
| SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2) |
| SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3) |
| SIGN1(sys32_readahead, compat_sys_readahead, %o0) |
| SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) |
| SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) |
| SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) |
| SIGN1(sys32_mlockall, sys_mlockall, %o0) |
| SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0) |
| SIGN1(sys32_clock_settime, compat_sys_clock_settime, %o1) |
| SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) |
| SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) |
| SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) |
| SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) |
| SIGN1(sys32_select, compat_sys_select, %o0) |
| SIGN1(sys32_mkdir, sys_mkdir, %o1) |
| SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) |
| SIGN1(sys32_sysfs, compat_sys_sysfs, %o0) |
| SIGN3(sys32_ipc, compat_sys_ipc, %o1, %o2, %o3) |
| SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) |
| SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1) |
| SIGN1(sys32_prctl, sys_prctl, %o0) |
| SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) |
| SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2) |
| SIGN1(sys32_getgroups, sys_getgroups, %o0) |
| SIGN1(sys32_getpgid, sys_getpgid, %o0) |
| SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1) |
| SIGN1(sys32_getsid, sys_getsid, %o0) |
| SIGN2(sys32_kill, sys_kill, %o0, %o1) |
| SIGN1(sys32_nice, sys_nice, %o0) |
| SIGN1(sys32_lseek, sys_lseek, %o1) |
| SIGN2(sys32_open, sparc32_open, %o1, %o2) |
| SIGN1(sys32_readlink, sys_readlink, %o2) |
| SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0) |
| SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0) |
| SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0) |
| SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0) |
| SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0) |
| SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1) |
| SIGN1(sys32_getdomainname, sys_getdomainname, %o1) |
| SIGN1(sys32_setdomainname, sys_setdomainname, %o1) |
| SIGN1(sys32_setgroups, sys_setgroups, %o0) |
| SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1) |
| SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2) |
| SIGN1(sys32_ssetmask, sys_ssetmask, %o0) |
| SIGN2(sys32_syslog, sys_syslog, %o0, %o2) |
| SIGN1(sys32_umask, sys_umask, %o0) |
| SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2) |
| SIGN1(sys32_sendto, sys_sendto, %o0) |
| SIGN1(sys32_recvfrom, sys_recvfrom, %o0) |
| SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2) |
| SIGN2(sys32_connect, sys_connect, %o0, %o2) |
| SIGN2(sys32_bind, sys_bind, %o0, %o2) |
| SIGN2(sys32_listen, sys_listen, %o0, %o1) |
| SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) |
| SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) |
| SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) |
| SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) |
| SIGN1(sys32_getpeername, sys_getpeername, %o0) |
| SIGN1(sys32_getsockname, sys_getsockname, %o0) |
| |
| .globl sys32_mmap2 |
| sys32_mmap2: |
| sethi %hi(sys_mmap), %g1 |
| jmpl %g1 + %lo(sys_mmap), %g0 |
| sllx %o5, 12, %o5 |
| |
| .align 32 |
| .globl sys32_socketcall |
| sys32_socketcall: /* %o0=call, %o1=args */ |
| cmp %o0, 1 |
| bl,pn %xcc, do_einval |
| cmp %o0, 17 |
| bg,pn %xcc, do_einval |
| sub %o0, 1, %o0 |
| sllx %o0, 5, %o0 |
| sethi %hi(__socketcall_table_begin), %g2 |
| or %g2, %lo(__socketcall_table_begin), %g2 |
| jmpl %g2 + %o0, %g0 |
| nop |
| |
| /* Each entry is exactly 32 bytes. */ |
| .align 32 |
| __socketcall_table_begin: |
| do_sys_socket: /* sys_socket(int, int, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_socket), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_socket), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_bind), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_bind), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_connect), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_connect), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_listen: /* sys_listen(int, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_listen), %g1 |
| jmpl %g1 + %lo(sys_listen), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| nop |
| do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_accept), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_accept), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_getsockname), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_getsockname), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_getpeername), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(sys_getpeername), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_socketpair), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| jmpl %g1 + %lo(sys_socketpair), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_send), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| jmpl %g1 + %lo(sys_send), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_recv), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| jmpl %g1 + %lo(sys_recv), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_sendto), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| lduwa [%o1 + 0x10] %asi, %o4 |
| ldswa [%o1 + 0x14] %asi, %o5 |
| jmpl %g1 + %lo(sys_sendto), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_recvfrom), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| lduwa [%o1 + 0x10] %asi, %o4 |
| lduwa [%o1 + 0x14] %asi, %o5 |
| jmpl %g1 + %lo(sys_recvfrom), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| do_sys_shutdown: /* sys_shutdown(int, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(sys_shutdown), %g1 |
| jmpl %g1 + %lo(sys_shutdown), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| nop |
| do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(compat_sys_setsockopt), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| ldswa [%o1 + 0x10] %asi, %o4 |
| jmpl %g1 + %lo(compat_sys_setsockopt), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(compat_sys_getsockopt), %g1 |
| ldswa [%o1 + 0x8] %asi, %o2 |
| lduwa [%o1 + 0xc] %asi, %o3 |
| lduwa [%o1 + 0x10] %asi, %o4 |
| jmpl %g1 + %lo(compat_sys_getsockopt), %g0 |
| ldswa [%o1 + 0x4] %asi, %o1 |
| nop |
| do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(compat_sys_sendmsg), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(compat_sys_sendmsg), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ |
| ldswa [%o1 + 0x0] %asi, %o0 |
| sethi %hi(compat_sys_recvmsg), %g1 |
| lduwa [%o1 + 0x8] %asi, %o2 |
| jmpl %g1 + %lo(compat_sys_recvmsg), %g0 |
| lduwa [%o1 + 0x4] %asi, %o1 |
| nop |
| nop |
| nop |
| __socketcall_table_end: |
| |
| do_einval: |
| retl |
| mov -EINVAL, %o0 |
| do_efault: |
| retl |
| mov -EFAULT, %o0 |
| |
| .section __ex_table |
| .align 4 |
| .word __socketcall_table_begin, 0, __socketcall_table_end, do_efault |
| .previous |
