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ARM Macro Assembler Page 1
1 00000000 ;/*
2 00000000 ; * Copyright (c) 2006-2022, RT-Thread Development Team
3 00000000 ; *
4 00000000 ; * SPDX-License-Identifier: Apache-2.0
5 00000000 ; *
6 00000000 ; * Change Logs:
7 00000000 ; * Date Author Notes
8 00000000 ; * 2019-10-25 tyx first version
9 00000000 ; */
10 00000000
11 00000000 AREA |.text|, CODE, READONLY, ALIGN=
2
12 00000000 THUMB
13 00000000 REQUIRE8
14 00000000 PRESERVE8
15 00000000
16 00000000 IMPORT rt_secure_svc_handle
17 00000000
18 00000000 ;/*
19 00000000 ; * int tzcall(int id, rt_ubase_t arg0, rt_ubase_t arg1,
rt_ubase_t arg2);
20 00000000 ; */
21 00000000 tzcall PROC
22 00000000 EXPORT tzcall
23 00000000 DF01 SVC 1 ;call SVC 1
24 00000002 4770 BX LR
25 00000004
26 00000004 ENDP
27 00000004
28 00000004 tzcall_entry
PROC
29 00000004 B512 PUSH {R1, R4, LR}
30 00000006 460C MOV R4, R1 ; copy thread SP to
R4
31 00000008 CC0F LDMFD R4!, {r0 - r3} ; pop user stack
, get input arg0, a
rg1, arg2
32 0000000A E924 000F STMFD R4!, {r0 - r3} ; push stack, us
er stack recovery
33 0000000E F7FF FFFE BL rt_secure_svc_handle ; call fun
34 00000012 E8BD 4012 POP {R1, R4, LR}
35 00000016 6008 STR R0, [R1] ; update return val
ue
36 00000018 4770 BX LR ; return to thread
37 0000001A
38 0000001A ENDP
39 0000001A
40 0000001A syscall_entry
PROC
41 0000001A 4770 BX LR ; return to user ap
p
42 0000001C
43 0000001C ENDP
44 0000001C
45 0000001C ;/*
46 0000001C ; * void SVC_Handler(void);
47 0000001C ; */
48 0000001C SVC_Handler
ARM Macro Assembler Page 2
PROC
49 0000001C EXPORT SVC_Handler
50 0000001C
51 0000001C ; get SP, save to R1
52 0000001C F3EF 8108 MRS R1, MSP ;get fault context
from handler
53 00000020 F01E 0F04 TST LR, #0x04 ;if(!EXC_RETURN[2])
54 00000024 D001 BEQ get_sp_done
55 00000026 F3EF 8109 MRS R1, PSP ;get fault context
from thread
56 0000002A get_sp_done
57 0000002A
58 0000002A ; get svc index
59 0000002A 6988 LDR R0, [R1, #24]
60 0000002C F810 0C02 LDRB R0, [R0, #-2]
61 00000030
62 00000030 ;if svc == 0, do system call
63 00000030 2800 CMP R0, #0x0
64 00000032 D0FE BEQ syscall_entry
65 00000034
66 00000034 ;if svc == 1, do TrustZone call
67 00000034 2801 CMP R0, #0x1
68 00000036 D0FE BEQ tzcall_entry
69 00000038
70 00000038 ENDP
71 00000038
72 00000038 ALIGN
73 00000038
74 00000038 END
Command Line: --debug --xref --diag_suppress=9931 --cpu=Cortex-M33 --fpu=FPv5-S
P --depend=.\build\keil\obj\syscall_rvds.d -o.\build\keil\obj\syscall_rvds.o -I
D:\1_tool_prog\2_MDK\pack\Keil\STM32H5xx_DFP\1.1.0\Drivers\CMSIS\Device\ST\STM3
2H5xx\Include --predefine="__UVISION_VERSION SETA 536" --predefine="STM32H563xx
SETA 1" --list=syscall_rvds.lst ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
ARM Macro Assembler Page 1 Alphabetic symbol ordering
Relocatable symbols
.text 00000000
Symbol: .text
Definitions
At line 11 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
None
Comment: .text unused
SVC_Handler 0000001C
Symbol: SVC_Handler
Definitions
At line 48 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 49 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: SVC_Handler used once
get_sp_done 0000002A
Symbol: get_sp_done
Definitions
At line 56 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 54 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: get_sp_done used once
syscall_entry 0000001A
Symbol: syscall_entry
Definitions
At line 40 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 64 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: syscall_entry used once
tzcall 00000000
Symbol: tzcall
Definitions
At line 21 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 22 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: tzcall used once
tzcall_entry 00000004
Symbol: tzcall_entry
Definitions
At line 28 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 68 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: tzcall_entry used once
6 symbols
ARM Macro Assembler Page 1 Alphabetic symbol ordering
External symbols
rt_secure_svc_handle 00000000
Symbol: rt_secure_svc_handle
Definitions
At line 16 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Uses
At line 33 in file ..\..\..\libcpu\arm\cortex-m33\syscall_rvds.S
Comment: rt_secure_svc_handle used once
1 symbol
340 symbols in table
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