2004/01/18 03:55:10

[org.ibex.core.git] / src / org / xwt / mips / syscalls.c

diff --git a/src/org/xwt/mips/syscalls.c b/src/org/xwt/mips/syscalls.c
deleted file mode 100644 (file)
index ca35ddf..0000000
--- a/src/org/xwt/mips/syscalls.c
+++ /dev/null
@@ -1,78 +0,0 @@
-#include <errno.h>
-#undef errno
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-// NOTE: This must match up with the Syscalls interface in MIPSInterpreter.java
-// (in my tree the Syscalls interface is autogenerated from a syscalls.h. We should
-// do the same)
-#define SYS_null 0
-#define SYS_exit 1
-#define SYS_pause 2
-#define SYS_open 3
-#define SYS_close 4
-#define SYS_read 5
-#define SYS_write 6
-#define SYS_sbrk 7
-#define SYS_fstat 8
-#define SYS_isatty 9
-#define SYS_seek 10
-#define SYS_kill 11
-#define SYS_getpid 12
-
-static inline int syscall4(int n, int a, int b, int c, int d) {
-    int ret;
-    __asm__ __volatile__ (
-        ".set noreorder\n\t"
-        "move $2,%1\n\t"
-        "move $4,%2\n\t"
-        "move $5,%3\n\t"
-        "move $6,%4\n\t"
-        "move $7,%5\n\t"
-        "syscall\n\t"
-        "move %0,$2\n\t"
-        ".set reorder\n\t"
-        : "=r"(ret)
-        : "0"(n),"r"(a),"r"(b),"r"(c),"r"(d)
-        : "$2","$4","$5","$6","$7","memory"
-    );
-    return ret;
-}
-static inline int syscall0(int n) { return syscall4(n,0,0,0,0); }
-static inline int syscall1(int n, int a) { return syscall4(n,a,0,0,0); }
-static inline int syscall2(int n, int a, int b) { return syscall4(n,a,b,0,0); }
-static inline int syscall3(int n, int a, int b, int c) { return syscall4(n,a,b,c,0); }
-
-static inline int errnoize(struct _reent *ptr,int n) {
-    if(n < 0) {
-        ptr->_errno = -n;
-        n = -1;
-    }
-    return n;
-}
-
-/* These return errno values and must be reentrant */
-caddr_t _sbrk_r(struct _reent *ptr,int incr) {
-    int n = syscall1(SYS_sbrk,incr);
-    if(n == -ENOMEM) { ptr->_errno = ENOMEM; return (caddr_t)-1; }
-    return (caddr_t) n;
-}
-
-int _write_r(struct _reent *ptr,int fd, char *p, int len) { return errnoize(ptr,syscall3(SYS_write,fd,(int)p,len)); }
-int _read_r(struct _reent *ptr,int fd, char *p, int len) { return errnoize(ptr,syscall3(SYS_read,fd,(int)p,len)); }
-int _close_r(struct _reent *ptr,int fd) { return errnoize(ptr,syscall1(SYS_close,fd)); }
-int _fstat_r(struct _reent *ptr,int fd, struct stat *st) { return errnoize(ptr,syscall2(SYS_fstat,fd,(int)st)); }
-int _lseek_r(struct _reent *ptr,int fd, int off, int whence) { return errnoize(ptr,syscall3(SYS_seek,fd,off,whence)); }
-int _open_r(struct _reent *ptr,char *name, int flags, int mode) { return errnoize(ptr,syscall3(SYS_open,(int)name,flags,mode)); }
-int _kill_r(struct _reent *ptr,pid_t pid, int sig) { return errnoize(ptr,syscall2(SYS_kill,(int)pid,sig)); }
-int _getpid_r(struct _reent *ptr) { return errnoize(ptr,syscall0(SYS_getpid)); }
-
-/* No errno values */
-void _exit(int status) {
-    syscall1(SYS_exit,status);
-    for(;;); /* shut up gcc */
-}
-int isatty(int fd) { return syscall1(SYS_isatty,fd); }
-
-void emu_pause() { syscall0(SYS_pause); }