| #define __NR_io_setup 227 |
| #define __NR_io_destroy 228 |
| #define __NR_io_getevents 229 |
| #define __NR_io_submit 230 |
| #define __NR_io_cancel 231 |
| |
| /* On powerpc a system call basically clobbers the same registers like a |
| * function call, with the exception of LR (which is needed for the |
| * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal |
| * an error return status). |
| */ |
| |
| #define __syscall_nr(nr, type, name, args...) \ |
| unsigned long __sc_ret, __sc_err; \ |
| { \ |
| register unsigned long __sc_0 __asm__ ("r0"); \ |
| register unsigned long __sc_3 __asm__ ("r3"); \ |
| register unsigned long __sc_4 __asm__ ("r4"); \ |
| register unsigned long __sc_5 __asm__ ("r5"); \ |
| register unsigned long __sc_6 __asm__ ("r6"); \ |
| register unsigned long __sc_7 __asm__ ("r7"); \ |
| register unsigned long __sc_8 __asm__ ("r8"); \ |
| \ |
| __sc_loadargs_##nr(name, args); \ |
| __asm__ __volatile__ \ |
| ("sc \n\t" \ |
| "mfcr %0 " \ |
| : "=&r" (__sc_0), \ |
| "=&r" (__sc_3), "=&r" (__sc_4), \ |
| "=&r" (__sc_5), "=&r" (__sc_6), \ |
| "=&r" (__sc_7), "=&r" (__sc_8) \ |
| : __sc_asm_input_##nr \ |
| : "cr0", "ctr", "memory", \ |
| "r9", "r10","r11", "r12"); \ |
| __sc_ret = __sc_3; \ |
| __sc_err = __sc_0; \ |
| } \ |
| if (__sc_err & 0x10000000) return -((int)__sc_ret); \ |
| return (type) __sc_ret |
| |
| #define __sc_loadargs_0(name, dummy...) \ |
| __sc_0 = __NR_##name |
| #define __sc_loadargs_1(name, arg1) \ |
| __sc_loadargs_0(name); \ |
| __sc_3 = (unsigned long) (arg1) |
| #define __sc_loadargs_2(name, arg1, arg2) \ |
| __sc_loadargs_1(name, arg1); \ |
| __sc_4 = (unsigned long) (arg2) |
| #define __sc_loadargs_3(name, arg1, arg2, arg3) \ |
| __sc_loadargs_2(name, arg1, arg2); \ |
| __sc_5 = (unsigned long) (arg3) |
| #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4) \ |
| __sc_loadargs_3(name, arg1, arg2, arg3); \ |
| __sc_6 = (unsigned long) (arg4) |
| #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5) \ |
| __sc_loadargs_4(name, arg1, arg2, arg3, arg4); \ |
| __sc_7 = (unsigned long) (arg5) |
| |
| #define __sc_asm_input_0 "0" (__sc_0) |
| #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3) |
| #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4) |
| #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5) |
| #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6) |
| #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7) |
| |
| #define io_syscall1(type,fname,sname,type1,arg1) \ |
| type fname(type1 arg1) \ |
| { \ |
| __syscall_nr(1, type, sname, arg1); \ |
| } |
| |
| #define io_syscall2(type,fname,sname,type1,arg1,type2,arg2) \ |
| type fname(type1 arg1, type2 arg2) \ |
| { \ |
| __syscall_nr(2, type, sname, arg1, arg2); \ |
| } |
| |
| #define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3) \ |
| type fname(type1 arg1, type2 arg2, type3 arg3) \ |
| { \ |
| __syscall_nr(3, type, sname, arg1, arg2, arg3); \ |
| } |
| |
| #define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ |
| type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ |
| { \ |
| __syscall_nr(4, type, sname, arg1, arg2, arg3, arg4); \ |
| } |
| |
| #define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \ |
| type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ |
| { \ |
| __syscall_nr(5, type, sname, arg1, arg2, arg3, arg4, arg5); \ |
| } |