X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-v850%2Funistd.h;h=2241ed45ecfeb9a315253636cc12b52af8723f48;hb=6553daeafb4fa15cd07088f543352fa3779e86e1;hp=737401e7d3ad33a5c398577bfb465354d6e6b7dc;hpb=44f549217cd26daf7063984ae4ee6e46beca9c41;p=linux-2.6 diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h index 737401e7d3..2241ed45ec 100644 --- a/include/asm-v850/unistd.h +++ b/include/asm-v850/unistd.h @@ -204,168 +204,8 @@ #define __NR_gettid 201 #define __NR_tkill 202 - -/* Syscall protocol: - Syscall number in r12, args in r6-r9, r13-r14 - Return value in r10 - Trap 0 for `short' syscalls, where all the args can fit in function - call argument registers, and trap 1 when there are additional args in - r13-r14. */ - -#define SYSCALL_NUM "r12" -#define SYSCALL_ARG0 "r6" -#define SYSCALL_ARG1 "r7" -#define SYSCALL_ARG2 "r8" -#define SYSCALL_ARG3 "r9" -#define SYSCALL_ARG4 "r13" -#define SYSCALL_ARG5 "r14" -#define SYSCALL_RET "r10" - -#define SYSCALL_SHORT_TRAP "0" -#define SYSCALL_LONG_TRAP "1" - -/* Registers clobbered by any syscall. This _doesn't_ include the syscall - number (r12) or the `extended arg' registers (r13, r14), even though - they are actually clobbered too (this is because gcc's `asm' statement - doesn't allow a clobber to be used as an input or output). */ -#define SYSCALL_CLOBBERS "r1", "r5", "r11", "r15", "r16", \ - "r17", "r18", "r19" - -/* Registers clobbered by a `short' syscall. This includes all clobbers - except the syscall number (r12). */ -#define SYSCALL_SHORT_CLOBBERS SYSCALL_CLOBBERS, "r13", "r14" - #ifdef __KERNEL__ -#include -#include - -#define __syscall_return(type, res) \ - do { \ - /* user-visible error numbers are in the range -1 - -MAX_ERRNO: \ - see */ \ - if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO), 0)) { \ - errno = -(res); \ - res = -1; \ - } \ - return (type) (res); \ - } while (0) - - -#define _syscall0(type, name) \ -type name (void) \ -{ \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \ - : "=r" (__ret), "=r" (__syscall) \ - : "1" (__syscall) \ - : SYSCALL_SHORT_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define _syscall1(type, name, atype, a) \ -type name (atype a) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \ - : "=r" (__ret), "=r" (__syscall) \ - : "1" (__syscall), "r" (__a) \ - : SYSCALL_SHORT_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define _syscall2(type, name, atype, a, btype, b) \ -type name (atype a, btype b) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register btype __b __asm__ (SYSCALL_ARG1) = b; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \ - : "=r" (__ret), "=r" (__syscall) \ - : "1" (__syscall), "r" (__a), "r" (__b) \ - : SYSCALL_SHORT_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define _syscall3(type, name, atype, a, btype, b, ctype, c) \ -type name (atype a, btype b, ctype c) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register btype __b __asm__ (SYSCALL_ARG1) = b; \ - register ctype __c __asm__ (SYSCALL_ARG2) = c; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \ - : "=r" (__ret), "=r" (__syscall) \ - : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c) \ - : SYSCALL_SHORT_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define _syscall4(type, name, atype, a, btype, b, ctype, c, dtype, d) \ -type name (atype a, btype b, ctype c, dtype d) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register btype __b __asm__ (SYSCALL_ARG1) = b; \ - register ctype __c __asm__ (SYSCALL_ARG2) = c; \ - register dtype __d __asm__ (SYSCALL_ARG3) = d; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \ - : "=r" (__ret), "=r" (__syscall) \ - : "1" (__syscall), \ - "r" (__a), "r" (__b), "r" (__c), "r" (__d) \ - : SYSCALL_SHORT_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define _syscall5(type, name, atype, a, btype, b, ctype, c, dtype, d, etype,e)\ -type name (atype a, btype b, ctype c, dtype d, etype e) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register btype __b __asm__ (SYSCALL_ARG1) = b; \ - register ctype __c __asm__ (SYSCALL_ARG2) = c; \ - register dtype __d __asm__ (SYSCALL_ARG3) = d; \ - register etype __e __asm__ (SYSCALL_ARG4) = e; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __asm__ __volatile__ ("trap " SYSCALL_LONG_TRAP \ - : "=r" (__ret), "=r" (__syscall), "=r" (__e) \ - : "1" (__syscall), \ - "r" (__a), "r" (__b), "r" (__c), "r" (__d), "2" (__e) \ - : SYSCALL_CLOBBERS); \ - __syscall_return (type, __ret); \ -} - -#define __SYSCALL6_TRAP(syscall, ret, a, b, c, d, e, f) \ - __asm__ __volatile__ ("trap " SYSCALL_LONG_TRAP \ - : "=r" (ret), "=r" (syscall), \ - "=r" (e), "=r" (f) \ - : "1" (syscall), \ - "r" (a), "r" (b), "r" (c), "r" (d), \ - "2" (e), "3" (f) \ - : SYSCALL_CLOBBERS); - -#define _syscall6(type, name, atype, a, btype, b, ctype, c, dtype, d, etype, e, ftype, f) \ -type name (atype a, btype b, ctype c, dtype d, etype e, ftype f) \ -{ \ - register atype __a __asm__ (SYSCALL_ARG0) = a; \ - register btype __b __asm__ (SYSCALL_ARG1) = b; \ - register ctype __c __asm__ (SYSCALL_ARG2) = c; \ - register dtype __d __asm__ (SYSCALL_ARG3) = d; \ - register etype __e __asm__ (SYSCALL_ARG4) = e; \ - register etype __f __asm__ (SYSCALL_ARG5) = f; \ - register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \ - register unsigned long __ret __asm__ (SYSCALL_RET); \ - __SYSCALL6_TRAP(__syscall, __ret, __a, __b, __c, __d, __e, __f); \ - __syscall_return (type, __ret); \ -} - - #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_STAT64