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[/] [or1k/] [trunk/] [linux/] [uClibc/] [ldso/] [ldso/] [m68k/] [ld_syscalls.h] - Rev 1325
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/* * This file contains the system call macros and syscall * numbers used by the shared library loader. */ #define __NR_exit 1 #define __NR_read 3 #define __NR_write 4 #define __NR_open 5 #define __NR_close 6 #define __NR_getuid 24 #define __NR_geteuid 49 #define __NR_getgid 47 #define __NR_getegid 50 #define __NR_readlink 85 #define __NR_mmap 90 #define __NR_munmap 91 #define __NR_stat 106 #define __NR_mprotect 125 /* Here are the macros which define how this platform makes * system calls. This particular variant does _not_ set * errno (note how it is disabled in __syscall_return) since * these will get called before the errno symbol is dynamicly * linked. */ #define __syscall_return(type, res) \ do { \ if ((unsigned long)(res) >= (unsigned long)(-125)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ /* int __err = -(res); \ errno = __err; */ \ res = -1; \ } \ return (type) (res); \ } while (0) #define _syscall0(type, name) \ type name(void) \ { \ long __res; \ __asm__ __volatile__ ("movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name) \ : "cc", "%d0"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ } #define _syscall1(type, name, atype, a) \ type name(atype a) \ { \ long __res; \ __asm__ __volatile__ ("movel %2, %%d1\n\t" \ "movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name), \ "g" ((long)a) \ : "cc", "%d0", "%d1"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ } #define _syscall2(type, name, atype, a, btype, b) \ type name(atype a, btype b) \ { \ long __res; \ __asm__ __volatile__ ("movel %3, %%d2\n\t" \ "movel %2, %%d1\n\t" \ "movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name), \ "a" ((long)a), \ "g" ((long)b) \ : "cc", "%d0", "%d1", "%d2"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ } #define _syscall3(type, name, atype, a, btype, b, ctype, c) \ type name(atype a, btype b, ctype c) \ { \ long __res; \ __asm__ __volatile__ ("movel %4, %%d3\n\t" \ "movel %3, %%d2\n\t" \ "movel %2, %%d1\n\t" \ "movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name), \ "a" ((long)a), \ "a" ((long)b), \ "g" ((long)c) \ : "cc", "%d0", "%d1", "%d2", "%d3"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ } #define _syscall4(type, name, atype, a, btype, b, ctype, c, dtype, d) \ type name(atype a, btype b, ctype c, dtype d) \ { \ long __res; \ __asm__ __volatile__ ("movel %5, %%d4\n\t" \ "movel %4, %%d3\n\t" \ "movel %3, %%d2\n\t" \ "movel %2, %%d1\n\t" \ "movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name), \ "a" ((long)a), \ "a" ((long)b), \ "a" ((long)c), \ "g" ((long)d) \ : "cc", "%d0", "%d1", "%d2", "%d3", \ "%d4"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ } #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) \ { \ long __res; \ __asm__ __volatile__ ("movel %6, %%d5\n\t" \ "movel %5, %%d4\n\t" \ "movel %4, %%d3\n\t" \ "movel %3, %%d2\n\t" \ "movel %2, %%d1\n\t" \ "movel %1, %%d0\n\t" \ "trap #0\n\t" \ "movel %%d0, %0" \ : "=g" (__res) \ : "i" (__NR_##name), \ "a" ((long)a), \ "a" ((long)b), \ "a" ((long)c), \ "a" ((long)d), \ "g" ((long)e) \ : "cc", "%d0", "%d1", "%d2", "%d3", \ "%d4", "%d5"); \ if ((unsigned long)(__res) >= (unsigned long)(-125)) { \ /* errno = -__res; */ \ __res = -1; \ } \ return (type)__res; \ }
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