diff options
Diffstat (limited to 'newlib/libc/sys/arc/sys/syscall.h')
| -rw-r--r-- | newlib/libc/sys/arc/sys/syscall.h | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/newlib/libc/sys/arc/sys/syscall.h b/newlib/libc/sys/arc/sys/syscall.h deleted file mode 100644 index b5d8aa2e1..000000000 --- a/newlib/libc/sys/arc/sys/syscall.h +++ /dev/null @@ -1,53 +0,0 @@ -/* ARC system call interface */ - -/* A special version of the flag insn is used to distinguish syscalls from - breakpoints (a breakpoint might be set at the same place). - - The upper 23 bits of the argument to a flag insn are not currently used. - By convention, bit 31 is one to indicate this is a specially coded operand. - The next 15 bits (bits 30-16) can be used for software purposes. - The format isn't documented yet, so the pattern we use here may change. */ - -#define SYSCALL_MARKER 0x80010000 -#define SYSCALL_MAGIC 0x61082300 - -/* Perform a system call. - - If ERR is 0, it succeeded. Otherwise it is a positive value for errno. */ - -#define SYSCALL(op, rc, err, r0, r1, r2) \ -asm volatile ( "\ - mov r0,%2\n\t \ - mov r1,%3\n\t \ - mov r2,%4\n\t \ - mov r3,%5\n\t \ - mov r4,%6\n\t \ - flag %7\n\t \ - nop\n\t \ - nop\n\t \ - nop\n\t \ - mov %0,r0\n\t \ - mov %1,r1" \ - : "=r" (rc), "=r" (err) \ - : "i" (SYSCALL_MAGIC), "r" (op), "r" (r0), "r" (r1), "r" (r2), \ - "i" (1 | SYSCALL_MARKER) \ - : "r0", "r1", "r2", "r3", "r4"); - -#define SYS_exit 1 -#define SYS_open 2 -#define SYS_close 3 -#define SYS_read 4 -#define SYS_write 5 -#define SYS_lseek 6 -#define SYS_link 7 -#define SYS_unlink 8 -#define SYS_chdir 9 -#define SYS_chmod 10 -#define SYS_stat 11 -#define SYS_fstat 12 -#define SYS_access 13 -#define SYS_getpid 14 -#define SYS_kill 15 -#define SYS_time 16 - -#define SYS_MAX 17 |