1 /* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
2
3 Redistribution and use in source and binary forms, with or without
4 modification, are permitted provided that the following conditions
5 are met:
6 1. Redistributions of source code must retain the above copyright
7 notice, this list of conditions and the following disclaimer.
8 2. Redistributions in binary form must reproduce the above copyright
9 notice, this list of conditions and the following disclaimer in the
10 documentation and/or other materials provided with the distribution.
11 3. The name of the company may not be used to endorse or promote
12 products derived from this software without specific prior written
13 permission.
14
15 THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
20 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
22 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
23 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
25
26 /* Now the SWI numbers and reason codes for RDI (Angel) monitors. */
27 #define AngelSVC 0xF000
28 #define AngelSVCInsn "hlt"
29 #define AngelSVCAsm hlt
30
31 /* The reason codes: */
32 #define AngelSVC_Reason_Open 0x01
33 #define AngelSVC_Reason_Close 0x02
34 #define AngelSVC_Reason_WriteC 0x03
35 #define AngelSVC_Reason_Write0 0x04
36 #define AngelSVC_Reason_Write 0x05
37 #define AngelSVC_Reason_Read 0x06
38 #define AngelSVC_Reason_ReadC 0x07
39 #define AngelSVC_Reason_IsTTY 0x09
40 #define AngelSVC_Reason_Seek 0x0A
41 #define AngelSVC_Reason_FLen 0x0C
42 #define AngelSVC_Reason_TmpNam 0x0D
43 #define AngelSVC_Reason_Remove 0x0E
44 #define AngelSVC_Reason_Rename 0x0F
45 #define AngelSVC_Reason_Clock 0x10
46 #define AngelSVC_Reason_Time 0x11
47 #define AngelSVC_Reason_System 0x12
48 #define AngelSVC_Reason_Errno 0x13
49 #define AngelSVC_Reason_GetCmdLine 0x15
50 #define AngelSVC_Reason_HeapInfo 0x16
51 #define AngelSVC_Reason_EnterSVC 0x17
52 #define AngelSVC_Reason_ReportException 0x18
53 #define AngelSVC_Reason_SyncCacheRange 0x19
54 #define AngelSVC_Reason_Elapsed 0x30
55 #define ADP_Stopped_ApplicationExit ((2 << 16) + 38)
56 #define ADP_Stopped_RunTimeError ((2 << 16) + 35)
57
58 #if defined(ARM_RDI_MONITOR) && !defined(__ASSEMBLER__)
59
60 /* Type of each entry in a parameter block. */
61 typedef long long param_block_t;
62
63 static inline long long
do_AngelSVC(int reason,param_block_t * arg)64 do_AngelSVC (int reason, param_block_t * arg)
65 {
66 long long value;
67 asm volatile ("mov w0, %w1; mov x1, %2; " AngelSVCInsn " %3; mov %0, x0"
68 : "=r" (value) /* Outputs */
69 : "r" (reason), "r" (arg), "n" (AngelSVC) /* Inputs */
70 : "x0", "x1", "x2", "x3", "x17", "x30", "memory", "cc"
71 /* Clobbers x0 and x1, and lr if in supervisor mode */);
72 return value;
73 }
74
75 #endif
76