1 .syntax unified
2 .cpu cortex-m3
3 .fpu softvfp
4 .eabi_attribute 20, 1
5 .eabi_attribute 21, 1
6 .eabi_attribute 23, 3
7 .eabi_attribute 24, 1
8 .eabi_attribute 25, 1
9 .eabi_attribute 26, 1
10 .eabi_attribute 30, 1
11 .eabi_attribute 34, 1
12 .eabi_attribute 18, 4
13 .thumb
14 .file "backdoor.c"
15 .text
16 .Ltext0:
17 .cfi_sections .debug_frame
18 .section .text.BackDoorCheck,"ax",%progbits
19 .align 2
20 .global BackDoorCheck
21 .thumb
22 .thumb_func
24 BackDoorCheck:
25 .LFB1:
26 .file 1 "../../../Source/backdoor.c"
1:../../../Source/backdoor.c **** /************************************************************************************//**
2:../../../Source/backdoor.c **** * \file Source\backdoor.c
3:../../../Source/backdoor.c **** * \brief Bootloader backdoor entry source file.
4:../../../Source/backdoor.c **** * \ingroup Core
5:../../../Source/backdoor.c **** * \internal
6:../../../Source/backdoor.c **** *----------------------------------------------------------------------------------------
7:../../../Source/backdoor.c **** * C O P Y R I G H T
8:../../../Source/backdoor.c **** *----------------------------------------------------------------------------------------
9:../../../Source/backdoor.c **** * Copyright (c) 2011 by Feaser http://www.feaser.com All rights reserved
10:../../../Source/backdoor.c **** *
11:../../../Source/backdoor.c **** *----------------------------------------------------------------------------------------
12:../../../Source/backdoor.c **** * L I C E N S E
13:../../../Source/backdoor.c **** *----------------------------------------------------------------------------------------
14:../../../Source/backdoor.c **** * This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
15:../../../Source/backdoor.c **** * modify it under the terms of the GNU General Public License as published by the Free
16:../../../Source/backdoor.c **** * Software Foundation, either version 3 of the License, or (at your option) any later
17:../../../Source/backdoor.c **** * version.
18:../../../Source/backdoor.c **** *
19:../../../Source/backdoor.c **** * OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
20:../../../Source/backdoor.c **** * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
21:../../../Source/backdoor.c **** * PURPOSE. See the GNU General Public License for more details.
22:../../../Source/backdoor.c **** *
23:../../../Source/backdoor.c **** * You should have received a copy of the GNU General Public License along with OpenBLT.
24:../../../Source/backdoor.c **** * If not, see .
25:../../../Source/backdoor.c **** *
26:../../../Source/backdoor.c **** * A special exception to the GPL is included to allow you to distribute a combined work
27:../../../Source/backdoor.c **** * that includes OpenBLT without being obliged to provide the source code for any
28:../../../Source/backdoor.c **** * proprietary components. The exception text is included at the bottom of the license
29:../../../Source/backdoor.c **** * file .
30:../../../Source/backdoor.c **** *
31:../../../Source/backdoor.c **** * \endinternal
32:../../../Source/backdoor.c **** ****************************************************************************************/
33:../../../Source/backdoor.c ****
34:../../../Source/backdoor.c **** /****************************************************************************************
35:../../../Source/backdoor.c **** * Include files
36:../../../Source/backdoor.c **** ****************************************************************************************/
37:../../../Source/backdoor.c **** #include "boot.h" /* bootloader generic header */
38:../../../Source/backdoor.c ****
39:../../../Source/backdoor.c ****
40:../../../Source/backdoor.c **** /****************************************************************************************
41:../../../Source/backdoor.c **** * Macro definitions
42:../../../Source/backdoor.c **** ****************************************************************************************/
43:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE == 0)
44:../../../Source/backdoor.c **** #ifndef BACKDOOR_ENTRY_TIMEOUT_MS
45:../../../Source/backdoor.c **** /** \brief Sets the time in milliseconds that the backdoor is open, but allow an
46:../../../Source/backdoor.c **** * override for this time. note that this time should be at least 2.5 times
47:../../../Source/backdoor.c **** * as long as the time that is configured in Microboot's XCP settings for the
48:../../../Source/backdoor.c **** * connect command response. This is the last entry on XCP Timeouts tab. By
49:../../../Source/backdoor.c **** * default the connect command response is configured as 20ms by Microboot,
50:../../../Source/backdoor.c **** * except for TCP/IP where it is 300ms due to accomodate for worldwide
51:../../../Source/backdoor.c **** * network latency. For CAN this was also adjusted to 500ms so that Microboot
52:../../../Source/backdoor.c **** * can wait for the bootloader to initialize. Otherwise errorframes can be
53:../../../Source/backdoor.c **** * generated on the CAN bus.
54:../../../Source/backdoor.c **** */
55:../../../Source/backdoor.c **** #if (BOOT_COM_NET_ENABLE == 1)
56:../../../Source/backdoor.c **** #define BACKDOOR_ENTRY_TIMEOUT_MS (750)
57:../../../Source/backdoor.c **** #elif (BOOT_COM_CAN_ENABLE == 1)
58:../../../Source/backdoor.c **** #define BACKDOOR_ENTRY_TIMEOUT_MS (500)
59:../../../Source/backdoor.c **** #else
60:../../../Source/backdoor.c **** #define BACKDOOR_ENTRY_TIMEOUT_MS (50)
61:../../../Source/backdoor.c **** #endif
62:../../../Source/backdoor.c **** #endif
63:../../../Source/backdoor.c **** #endif
64:../../../Source/backdoor.c ****
65:../../../Source/backdoor.c **** /****************************************************************************************
66:../../../Source/backdoor.c **** * Hook functions
67:../../../Source/backdoor.c **** ****************************************************************************************/
68:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE > 0)
69:../../../Source/backdoor.c **** extern void BackDoorInitHook(void);
70:../../../Source/backdoor.c **** extern blt_bool BackDoorEntryHook(void);
71:../../../Source/backdoor.c **** #endif
72:../../../Source/backdoor.c ****
73:../../../Source/backdoor.c ****
74:../../../Source/backdoor.c **** /****************************************************************************************
75:../../../Source/backdoor.c **** * Local data declarations
76:../../../Source/backdoor.c **** ****************************************************************************************/
77:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE == 0)
78:../../../Source/backdoor.c **** /** \brief To determine if the backdoor is open or closed. */
79:../../../Source/backdoor.c **** static blt_bool backdoorOpen;
80:../../../Source/backdoor.c **** /** \brief To determine how long the backdoor has been open in milliseconds. */
81:../../../Source/backdoor.c **** static blt_int32u backdoorOpenTime;
82:../../../Source/backdoor.c **** #endif
83:../../../Source/backdoor.c ****
84:../../../Source/backdoor.c ****
85:../../../Source/backdoor.c **** /************************************************************************************//**
86:../../../Source/backdoor.c **** ** \brief Initializes the backdoor entry option.
87:../../../Source/backdoor.c **** ** \return none
88:../../../Source/backdoor.c **** **
89:../../../Source/backdoor.c **** ****************************************************************************************/
90:../../../Source/backdoor.c **** void BackDoorInit(void)
91:../../../Source/backdoor.c **** {
92:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE > 0)
93:../../../Source/backdoor.c **** /* initialize application's backdoor functionality */
94:../../../Source/backdoor.c **** BackDoorInitHook();
95:../../../Source/backdoor.c ****
96:../../../Source/backdoor.c **** /* attempt to start the user program when no backdoor entry is requested */
97:../../../Source/backdoor.c **** if (BackDoorEntryHook() == BLT_FALSE)
98:../../../Source/backdoor.c **** {
99:../../../Source/backdoor.c **** /* this function does not return if a valid user program is present */
100:../../../Source/backdoor.c **** CpuStartUserProgram();
101:../../../Source/backdoor.c **** }
102:../../../Source/backdoor.c **** #if (BOOT_FILE_SYS_ENABLE > 0)
103:../../../Source/backdoor.c **** else
104:../../../Source/backdoor.c **** {
105:../../../Source/backdoor.c **** /* the backdoor is open so we should check if a update from locally attached storage
106:../../../Source/backdoor.c **** * is requested and, if so, start it.
107:../../../Source/backdoor.c **** */
108:../../../Source/backdoor.c **** FileHandleFirmwareUpdateRequest();
109:../../../Source/backdoor.c **** }
110:../../../Source/backdoor.c **** #endif
111:../../../Source/backdoor.c **** #else
112:../../../Source/backdoor.c **** /* open the backdoor after a reset */
113:../../../Source/backdoor.c **** backdoorOpen = BLT_TRUE;
114:../../../Source/backdoor.c **** backdoorOpenTime = TimerGet();
115:../../../Source/backdoor.c **** #endif
116:../../../Source/backdoor.c **** /* perform the first check that open/closes the backdoor */
117:../../../Source/backdoor.c **** BackDoorCheck();
118:../../../Source/backdoor.c **** } /*** end of BackDoorInit ***/
119:../../../Source/backdoor.c ****
120:../../../Source/backdoor.c ****
121:../../../Source/backdoor.c **** /************************************************************************************//**
122:../../../Source/backdoor.c **** ** \brief The default backdoor entry feature keeps the bootloader active for a
123:../../../Source/backdoor.c **** ** predetermined time after reset, allowing the host application to
124:../../../Source/backdoor.c **** ** establish a connection and start a programming sequence. This function
125:../../../Source/backdoor.c **** ** controls the opening/closing of the backdoor.
126:../../../Source/backdoor.c **** ** \return none
127:../../../Source/backdoor.c **** **
128:../../../Source/backdoor.c **** ****************************************************************************************/
129:../../../Source/backdoor.c **** void BackDoorCheck(void)
130:../../../Source/backdoor.c **** {
27 .loc 1 130 0
28 .cfi_startproc
29 @ args = 0, pretend = 0, frame = 0
30 @ frame_needed = 0, uses_anonymous_args = 0
31 0000 08B5 push {r3, lr}
32 .cfi_def_cfa_offset 8
33 .cfi_offset 3, -8
34 .cfi_offset 14, -4
131:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE == 0)
132:../../../Source/backdoor.c **** #if (BOOT_COM_ENABLE > 0)
133:../../../Source/backdoor.c **** /* check if a connection with the host was already established. in this case the
134:../../../Source/backdoor.c **** * backdoor stays open anyway, so no need to check if it needs to be closed.
135:../../../Source/backdoor.c **** */
136:../../../Source/backdoor.c **** if (ComIsConnected() == BLT_TRUE)
35 .loc 1 136 0
36 0002 FFF7FEFF bl ComIsConnected
37 .LVL0:
38 0006 0128 cmp r0, #1
39 0008 0FD0 beq .L1
137:../../../Source/backdoor.c **** {
138:../../../Source/backdoor.c **** return;
139:../../../Source/backdoor.c **** }
140:../../../Source/backdoor.c **** #endif
141:../../../Source/backdoor.c **** #if (BOOT_FILE_SYS_ENABLE > 0)
142:../../../Source/backdoor.c **** /* check if the file module is busy, indicating that a firmware update through the
143:../../../Source/backdoor.c **** * locally attached storage is in progress. in this case the backdoor stays open
144:../../../Source/backdoor.c **** * anyway, so no need to check if it needs to be closed.
145:../../../Source/backdoor.c **** */
146:../../../Source/backdoor.c **** if (FileIsIdle() == BLT_FALSE)
147:../../../Source/backdoor.c **** {
148:../../../Source/backdoor.c **** return;
149:../../../Source/backdoor.c **** }
150:../../../Source/backdoor.c **** #endif
151:../../../Source/backdoor.c ****
152:../../../Source/backdoor.c **** /* when the backdoor is still open, check if it's time to close it */
153:../../../Source/backdoor.c **** if (backdoorOpen == BLT_TRUE)
40 .loc 1 153 0
41 000a 084B ldr r3, .L4
42 000c 1B78 ldrb r3, [r3] @ zero_extendqisi2
43 000e 012B cmp r3, #1
44 0010 0BD1 bne .L1
154:../../../Source/backdoor.c **** {
155:../../../Source/backdoor.c **** /* check if the backdoor entry time window elapsed */
156:../../../Source/backdoor.c **** if (TimerGet() >= (BACKDOOR_ENTRY_TIMEOUT_MS + backdoorOpenTime))
45 .loc 1 156 0
46 0012 FFF7FEFF bl TimerGet
47 .LVL1:
48 0016 064B ldr r3, .L4+4
49 0018 1B68 ldr r3, [r3]
50 001a 3233 adds r3, r3, #50
51 001c 9842 cmp r0, r3
52 001e 04D3 bcc .L1
157:../../../Source/backdoor.c **** {
158:../../../Source/backdoor.c **** /* close the backdoor */
159:../../../Source/backdoor.c **** backdoorOpen = BLT_FALSE;
53 .loc 1 159 0
54 0020 0022 movs r2, #0
55 0022 024B ldr r3, .L4
56 0024 1A70 strb r2, [r3]
160:../../../Source/backdoor.c **** #if (BOOT_FILE_SYS_ENABLE > 0)
161:../../../Source/backdoor.c **** /* during the timed backdoor no remote update request was detected. now do one
162:../../../Source/backdoor.c **** * last check to see if a firmware update from locally attached storage is
163:../../../Source/backdoor.c **** * pending.
164:../../../Source/backdoor.c **** */
165:../../../Source/backdoor.c **** if (FileHandleFirmwareUpdateRequest() == BLT_FALSE)
166:../../../Source/backdoor.c **** #endif
167:../../../Source/backdoor.c **** {
168:../../../Source/backdoor.c **** /* no firmware update requests detected, so attempt to start the user program.
169:../../../Source/backdoor.c **** * this function does not return if a valid user program is present.
170:../../../Source/backdoor.c **** */
171:../../../Source/backdoor.c **** CpuStartUserProgram();
57 .loc 1 171 0
58 0026 FFF7FEFF bl CpuStartUserProgram
59 .LVL2:
60 .L1:
61 002a 08BD pop {r3, pc}
62 .L5:
63 .align 2
64 .L4:
65 002c 00000000 .word .LANCHOR0
66 0030 00000000 .word .LANCHOR1
67 .cfi_endproc
68 .LFE1:
70 .section .text.BackDoorInit,"ax",%progbits
71 .align 2
72 .global BackDoorInit
73 .thumb
74 .thumb_func
76 BackDoorInit:
77 .LFB0:
91:../../../Source/backdoor.c **** #if (BOOT_BACKDOOR_HOOKS_ENABLE > 0)
78 .loc 1 91 0
79 .cfi_startproc
80 @ args = 0, pretend = 0, frame = 0
81 @ frame_needed = 0, uses_anonymous_args = 0
82 0000 08B5 push {r3, lr}
83 .cfi_def_cfa_offset 8
84 .cfi_offset 3, -8
85 .cfi_offset 14, -4
113:../../../Source/backdoor.c **** backdoorOpenTime = TimerGet();
86 .loc 1 113 0
87 0002 0122 movs r2, #1
88 0004 044B ldr r3, .L8
89 0006 1A70 strb r2, [r3]
114:../../../Source/backdoor.c **** #endif
90 .loc 1 114 0
91 0008 FFF7FEFF bl TimerGet
92 .LVL3:
93 000c 034B ldr r3, .L8+4
94 000e 1860 str r0, [r3]
117:../../../Source/backdoor.c **** } /*** end of BackDoorInit ***/
95 .loc 1 117 0
96 0010 FFF7FEFF bl BackDoorCheck
97 .LVL4:
98 0014 08BD pop {r3, pc}
99 .L9:
100 0016 00BF .align 2
101 .L8:
102 0018 00000000 .word .LANCHOR0
103 001c 00000000 .word .LANCHOR1
104 .cfi_endproc
105 .LFE0:
107 .section .bss.backdoorOpen,"aw",%nobits
108 .set .LANCHOR0,. + 0
111 backdoorOpen:
112 0000 00 .space 1
113 .section .bss.backdoorOpenTime,"aw",%nobits
114 .align 2
115 .set .LANCHOR1,. + 0
118 backdoorOpenTime:
119 0000 00000000 .space 4
120 .text
121 .Letext0:
122 .file 2 "../../../Source/ARMCM3_STM32/types.h"
123 .file 3 "../../../Source/com.h"
124 .file 4 "../../../Source/ARMCM3_STM32/timer.h"
125 .file 5 "../../../Source/ARMCM3_STM32/cpu.h"
DEFINED SYMBOLS
*ABS*:00000000 backdoor.c
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:19 .text.BackDoorCheck:00000000 $t
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:24 .text.BackDoorCheck:00000000 BackDoorCheck
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:65 .text.BackDoorCheck:0000002c $d
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:71 .text.BackDoorInit:00000000 $t
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:76 .text.BackDoorInit:00000000 BackDoorInit
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:102 .text.BackDoorInit:00000018 $d
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:111 .bss.backdoorOpen:00000000 backdoorOpen
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:112 .bss.backdoorOpen:00000000 $d
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:114 .bss.backdoorOpenTime:00000000 $d
C:\Users\lwngim1\AppData\Local\Temp\ccV5nJcl.s:118 .bss.backdoorOpenTime:00000000 backdoorOpenTime
.debug_frame:00000010 $d
UNDEFINED SYMBOLS
ComIsConnected
TimerGet
CpuStartUserProgram