1*cf84ac9aSAndroid Build Coastguard Worker /*
2*cf84ac9aSAndroid Build Coastguard Worker * Raw syscalls.
3*cf84ac9aSAndroid Build Coastguard Worker *
4*cf84ac9aSAndroid Build Coastguard Worker * Copyright (c) 2018 The strace developers.
5*cf84ac9aSAndroid Build Coastguard Worker * All rights reserved.
6*cf84ac9aSAndroid Build Coastguard Worker *
7*cf84ac9aSAndroid Build Coastguard Worker * Redistribution and use in source and binary forms, with or without
8*cf84ac9aSAndroid Build Coastguard Worker * modification, are permitted provided that the following conditions
9*cf84ac9aSAndroid Build Coastguard Worker * are met:
10*cf84ac9aSAndroid Build Coastguard Worker * 1. Redistributions of source code must retain the above copyright
11*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer.
12*cf84ac9aSAndroid Build Coastguard Worker * 2. Redistributions in binary form must reproduce the above copyright
13*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer in the
14*cf84ac9aSAndroid Build Coastguard Worker * documentation and/or other materials provided with the distribution.
15*cf84ac9aSAndroid Build Coastguard Worker * 3. The name of the author may not be used to endorse or promote products
16*cf84ac9aSAndroid Build Coastguard Worker * derived from this software without specific prior written permission.
17*cf84ac9aSAndroid Build Coastguard Worker *
18*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19*cf84ac9aSAndroid Build Coastguard Worker * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20*cf84ac9aSAndroid Build Coastguard Worker * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21*cf84ac9aSAndroid Build Coastguard Worker * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22*cf84ac9aSAndroid Build Coastguard Worker * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23*cf84ac9aSAndroid Build Coastguard Worker * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24*cf84ac9aSAndroid Build Coastguard Worker * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25*cf84ac9aSAndroid Build Coastguard Worker * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26*cf84ac9aSAndroid Build Coastguard Worker * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*cf84ac9aSAndroid Build Coastguard Worker */
29*cf84ac9aSAndroid Build Coastguard Worker
30*cf84ac9aSAndroid Build Coastguard Worker #ifndef STRACE_RAW_SYSCALL_H
31*cf84ac9aSAndroid Build Coastguard Worker #define STRACE_RAW_SYSCALL_H
32*cf84ac9aSAndroid Build Coastguard Worker
33*cf84ac9aSAndroid Build Coastguard Worker # include "kernel_types.h"
34*cf84ac9aSAndroid Build Coastguard Worker
35*cf84ac9aSAndroid Build Coastguard Worker static inline kernel_ulong_t
raw_syscall_0(const kernel_ulong_t nr,kernel_ulong_t * err)36*cf84ac9aSAndroid Build Coastguard Worker raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err)
37*cf84ac9aSAndroid Build Coastguard Worker {
38*cf84ac9aSAndroid Build Coastguard Worker *err = 0;
39*cf84ac9aSAndroid Build Coastguard Worker register kernel_ulong_t r28 __asm__("r28");
40*cf84ac9aSAndroid Build Coastguard Worker __asm__ __volatile__("copy %%r19, %%r4\n\t"
41*cf84ac9aSAndroid Build Coastguard Worker "ble 0x100(%%sr2, %%r0)\n\t"
42*cf84ac9aSAndroid Build Coastguard Worker "copy %1, %%r20\n\t"
43*cf84ac9aSAndroid Build Coastguard Worker "copy %%r4, %%r19\n\t"
44*cf84ac9aSAndroid Build Coastguard Worker : "=r"(r28)
45*cf84ac9aSAndroid Build Coastguard Worker : "r"(nr)
46*cf84ac9aSAndroid Build Coastguard Worker : "memory", "%r1", "%r2", "%r4",
47*cf84ac9aSAndroid Build Coastguard Worker "%r21", "%r22", "%r23", "%r24", "%r25", "%r26" );
48*cf84ac9aSAndroid Build Coastguard Worker return r28;
49*cf84ac9aSAndroid Build Coastguard Worker }
50*cf84ac9aSAndroid Build Coastguard Worker # define raw_syscall_0 raw_syscall_0
51*cf84ac9aSAndroid Build Coastguard Worker
52*cf84ac9aSAndroid Build Coastguard Worker #endif /* !STRACE_RAW_SYSCALL_H */
53