host/mips/safe-syscall.inc.S

2  * safe-syscall.inc.S : host-specific assembly fragment
4  * This is intended to be included by common-user/safe-syscall.S
10  * See the COPYING file in the top-level directory.
29          * second one the system call number (as a 'long'), and all further
35 #define FRAME    40  macro
39 #define FRAME    16  macro
44 NESTED(safe_syscall_base, FRAME, ra)
46         PTR_ADDIU sp, sp, -FRAME
47         .cfi_adjust_cfa_offset FRAME
54          *               a1 == syscall number
58          *               v0 == syscall number
64         move    v0, a1          /* syscall number */
67         lw      a2, FRAME+16(sp)
68         lw      a3, FRAME+20(sp)
69         lw      t4, FRAME+24(sp)
70         lw      t5, FRAME+28(sp)
71         lw      t6, FRAME+32(sp)
72         lw      t7, FRAME+40(sp)
81          *               a1 == syscall number
85          *               v0 == syscall number
91         move    v0, a1          /* syscall number */
109         /* If signal_pending is non-zero, don't do the call */
117         PTR_ADDIU sp, sp, FRAME
119         .cfi_adjust_cfa_offset -FRAME
127         PTR_ADDIU sp, sp, FRAME
128         .cfi_adjust_cfa_offset -FRAME