| 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 | #include <_ansi.h> |
|---|
| 27 | |
|---|
| 28 | /* Now the SWI numbers and reason codes for RDI (Angel) monitors. */ |
|---|
| 29 | #define AngelSVC 0xF000 |
|---|
| 30 | #define AngelSVCInsn "hlt" |
|---|
| 31 | #define AngelSVCAsm hlt |
|---|
| 32 | |
|---|
| 33 | /* The reason codes: */ |
|---|
| 34 | #define AngelSVC_Reason_Open 0x01 |
|---|
| 35 | #define AngelSVC_Reason_Close 0x02 |
|---|
| 36 | #define AngelSVC_Reason_WriteC 0x03 |
|---|
| 37 | #define AngelSVC_Reason_Write0 0x04 |
|---|
| 38 | #define AngelSVC_Reason_Write 0x05 |
|---|
| 39 | #define AngelSVC_Reason_Read 0x06 |
|---|
| 40 | #define AngelSVC_Reason_ReadC 0x07 |
|---|
| 41 | #define AngelSVC_Reason_IsError 0x08 |
|---|
| 42 | #define AngelSVC_Reason_IsTTY 0x09 |
|---|
| 43 | #define AngelSVC_Reason_Seek 0x0A |
|---|
| 44 | #define AngelSVC_Reason_FLen 0x0C |
|---|
| 45 | #define AngelSVC_Reason_TmpNam 0x0D |
|---|
| 46 | #define AngelSVC_Reason_Remove 0x0E |
|---|
| 47 | #define AngelSVC_Reason_Rename 0x0F |
|---|
| 48 | #define AngelSVC_Reason_Clock 0x10 |
|---|
| 49 | #define AngelSVC_Reason_Time 0x11 |
|---|
| 50 | #define AngelSVC_Reason_System 0x12 |
|---|
| 51 | #define AngelSVC_Reason_Errno 0x13 |
|---|
| 52 | #define AngelSVC_Reason_GetCmdLine 0x15 |
|---|
| 53 | #define AngelSVC_Reason_HeapInfo 0x16 |
|---|
| 54 | #define AngelSVC_Reason_EnterSVC 0x17 |
|---|
| 55 | #define AngelSVC_Reason_ReportException 0x18 |
|---|
| 56 | #define AngelSVC_Reason_SyncCacheRange 0x19 |
|---|
| 57 | #define AngelSVC_Reason_ReportExceptionExtended 0x20 |
|---|
| 58 | #define AngelSVC_Reason_Elapsed 0x30 |
|---|
| 59 | #define AngelSVC_Reason_TickFreq 0x31 |
|---|
| 60 | #define ADP_Stopped_ApplicationExit ((2 << 16) + 38) |
|---|
| 61 | #define ADP_Stopped_RunTimeError ((2 << 16) + 35) |
|---|
| 62 | |
|---|
| 63 | /* Semihosting feature magic numbers. */ |
|---|
| 64 | #define NUM_SHFB_MAGIC 4 |
|---|
| 65 | #define SHFB_MAGIC_0 0x53 |
|---|
| 66 | #define SHFB_MAGIC_1 0x48 |
|---|
| 67 | #define SHFB_MAGIC_2 0x46 |
|---|
| 68 | #define SHFB_MAGIC_3 0x42 |
|---|
| 69 | |
|---|
| 70 | /* Semihosting extensions. */ |
|---|
| 71 | #define SH_EXT_EXIT_EXTENDED_BITNUM 0x0 |
|---|
| 72 | #define SH_EXT_STDOUT_STDERR_BITNUM 0x1 |
|---|
| 73 | |
|---|
| 74 | #if !defined (__ASSEMBLER__) |
|---|
| 75 | extern int _get_semihosting_exts (char*, int, int); |
|---|
| 76 | extern int _has_ext_exit_extended (void); |
|---|
| 77 | extern int _has_ext_stdout_stderr (void); |
|---|
| 78 | #endif |
|---|
| 79 | |
|---|
| 80 | #if defined(ARM_RDI_MONITOR) && !defined(__ASSEMBLER__) |
|---|
| 81 | |
|---|
| 82 | /* Type of each entry in a parameter block. */ |
|---|
| 83 | typedef long long param_block_t; |
|---|
| 84 | |
|---|
| 85 | static inline long long |
|---|
| 86 | do_AngelSVC (int reason, param_block_t * arg) |
|---|
| 87 | { |
|---|
| 88 | long long value; |
|---|
| 89 | asm volatile ("mov w0, %w1; mov x1, %2; " AngelSVCInsn " %3; mov %0, x0" |
|---|
| 90 | : "=r" (value) /* Outputs */ |
|---|
| 91 | : "r" (reason), "r" (arg), "n" (AngelSVC) /* Inputs */ |
|---|
| 92 | : "x0", "x1", "x2", "x3", "x17", "x30", "memory", "cc" |
|---|
| 93 | /* Clobbers x0 and x1, and lr if in supervisor mode */); |
|---|
| 94 | return value; |
|---|
| 95 | } |
|---|
| 96 | |
|---|
| 97 | #endif |
|---|
