📄 os_mem.lst
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###############################################################################
# #
# IAR ANSI C/C++ Compiler V6.10.2.52244/W32 for ARM 07/Aug/2011 12:10:29 #
# Copyright 1999-2010 IAR Systems AB. #
# #
# Cpu mode = thumb #
# Endian = little #
# Source file = F:\stm32\我的程序\Micrium\Software\uCOS-II\Source\os_mem #
# .c #
# Command line = F:\stm32\我的程序\Micrium\Software\uCOS-II\Source\os_mem #
# .c -D USE_STDPERIPH_DRIVER -D STM32F10X_CL -lCN #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\Flash\Lis #
# t\ -o F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\Fla #
# sh\Obj\ --no_cse --no_unroll --no_inline #
# --no_code_motion --no_tbaa --no_clustering #
# --no_scheduling --debug --endian=little --cpu=Cortex-M3 #
# -e --fpu=None --dlib_config #
# D:\arm\INC\c\DLib_Config_Normal.h -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\APP\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\BSP\ #
# -I F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\BSP #
# \ST\CMSIS\CM3\CoreSupport\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\BSP\ST #
# \CMSIS\CM3\DeviceSupport\ST\STM32F10x\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\BSP\ST #
# \STM32F10x_StdPeriph_Driver\inc\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\BSP\uC #
# OS-II\ -I F:\stm32\我的程序\Micrium\Software\EWARM\OS-II #
# \..\..\uCOS-II\Ports\ARM-Cortex-M3\Generic\IAR\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\..\uCO #
# S-II\Source\ -I F:\stm32\我的程序\Micrium\Software\EWARM #
# \OS-II\..\..\uC-LIB\ -I F:\stm32\我的程序\Micrium\Softwa #
# re\EWARM\OS-II\..\..\uC-LIB\Ports\ARM-Cortex-M3\IAR\ -I #
# F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\..\..\uC- #
# CPU\ -I F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\. #
# .\..\uC-CPU\ARM-Cortex-M3\IAR\ -On --use_c++_inline #
# List file = F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\Flash\Lis #
# t\os_mem.lst #
# Object file = F:\stm32\我的程序\Micrium\Software\EWARM\OS-II\Flash\Obj #
# \os_mem.o #
# #
# #
###############################################################################
F:\stm32\我的程序\Micrium\Software\uCOS-II\Source\os_mem.c
1 /*
2 *********************************************************************************************************
3 * uC/OS-II
4 * The Real-Time Kernel
5 * MEMORY MANAGEMENT
6 *
7 * (c) Copyright 1992-2010, Micrium, Weston, FL
8 * All Rights Reserved
9 *
10 * File : OS_MEM.C
11 * By : Jean J. Labrosse
12 * Version : V2.92
13 *
14 * LICENSING TERMS:
15 * ---------------
16 * uC/OS-II is provided in source form for FREE evaluation, for educational use or for peaceful research.
17 * If you plan on using uC/OS-II in a commercial product you need to contact Micri祄 to properly license
18 * its use in your product. We provide ALL the source code for your convenience and to help you experience
19 * uC/OS-II. The fact that the source is provided does NOT mean that you can use it without paying a
20 * licensing fee.
21 *********************************************************************************************************
22 */
23
24 #ifndef OS_MASTER_FILE
25 #include <ucos_ii.h>
26 #endif
27
28 #if (OS_MEM_EN > 0u) && (OS_MAX_MEM_PART > 0u)
29 /*
30 *********************************************************************************************************
31 * CREATE A MEMORY PARTITION
32 *
33 * Description : Create a fixed-sized memory partition that will be managed by uC/OS-II.
34 *
35 * Arguments : addr is the starting address of the memory partition
36 *
37 * nblks is the number of memory blocks to create from the partition.
38 *
39 * blksize is the size (in bytes) of each block in the memory partition.
40 *
41 * perr is a pointer to a variable containing an error message which will be set by
42 * this function to either:
43 *
44 * OS_ERR_NONE if the memory partition has been created correctly.
45 * OS_ERR_MEM_INVALID_ADDR if you are specifying an invalid address for the memory
46 * storage of the partition or, the block does not align
47 * on a pointer boundary
48 * OS_ERR_MEM_INVALID_PART no free partitions available
49 * OS_ERR_MEM_INVALID_BLKS user specified an invalid number of blocks (must be >= 2)
50 * OS_ERR_MEM_INVALID_SIZE user specified an invalid block size
51 * - must be greater than the size of a pointer
52 * - must be able to hold an integral number of pointers
53 * Returns : != (OS_MEM *)0 is the partition was created
54 * == (OS_MEM *)0 if the partition was not created because of invalid arguments or, no
55 * free partition is available.
56 *********************************************************************************************************
57 */
58
\ In section .text, align 2, keep-with-next
59 OS_MEM *OSMemCreate (void *addr,
60 INT32U nblks,
61 INT32U blksize,
62 INT8U *perr)
63 {
\ OSMemCreate:
\ 00000000 2DE9F84F PUSH {R3-R11,LR}
\ 00000004 82B0 SUB SP,SP,#+8
\ 00000006 0400 MOVS R4,R0
\ 00000008 0D00 MOVS R5,R1
\ 0000000A 1600 MOVS R6,R2
64 OS_MEM *pmem;
65 INT8U *pblk;
66 void **plink;
67 INT32U loops;
68 INT32U i;
69 #if OS_CRITICAL_METHOD == 3u /* Allocate storage for CPU status register */
70 OS_CPU_SR cpu_sr = 0u;
\ 0000000C 5FF0000B MOVS R11,#+0
71 #endif
72
73
74
75 #ifdef OS_SAFETY_CRITICAL
76 if (perr == (INT8U *)0) {
77 OS_SAFETY_CRITICAL_EXCEPTION();
78 return ((OS_MEM *)0);
79 }
80 #endif
81
82 #ifdef OS_SAFETY_CRITICAL_IEC61508
83 if (OSSafetyCriticalStartFlag == OS_TRUE) {
84 OS_SAFETY_CRITICAL_EXCEPTION();
85 return ((OS_MEM *)0);
86 }
87 #endif
88
89 #if OS_ARG_CHK_EN > 0u
90 if (addr == (void *)0) { /* Must pass a valid address for the memory part.*/
91 *perr = OS_ERR_MEM_INVALID_ADDR;
92 return ((OS_MEM *)0);
93 }
94 if (((INT32U)addr & (sizeof(void *) - 1u)) != 0u){ /* Must be pointer size aligned */
95 *perr = OS_ERR_MEM_INVALID_ADDR;
96 return ((OS_MEM *)0);
97 }
98 if (nblks < 2u) { /* Must have at least 2 blocks per partition */
99 *perr = OS_ERR_MEM_INVALID_BLKS;
100 return ((OS_MEM *)0);
101 }
102 if (blksize < sizeof(void *)) { /* Must contain space for at least a pointer */
103 *perr = OS_ERR_MEM_INVALID_SIZE;
104 return ((OS_MEM *)0);
105 }
106 #endif
107 OS_ENTER_CRITICAL();
\ 00000010 ........ BL OS_CPU_SR_Save
\ 00000014 8346 MOV R11,R0
108 pmem = OSMemFreeList; /* Get next free memory partition */
\ 00000016 .... LDR.N R0,??DataTable4_1
\ 00000018 0068 LDR R0,[R0, #+0]
\ 0000001A 0700 MOVS R7,R0
109 if (OSMemFreeList != (OS_MEM *)0) { /* See if pool of free partitions was empty */
\ 0000001C .... LDR.N R0,??DataTable4_1
\ 0000001E 0068 LDR R0,[R0, #+0]
\ 00000020 0028 CMP R0,#+0
\ 00000022 04D0 BEQ.N ??OSMemCreate_0
110 OSMemFreeList = (OS_MEM *)OSMemFreeList->OSMemFreeList;
\ 00000024 .... LDR.N R0,??DataTable4_1
\ 00000026 0068 LDR R0,[R0, #+0]
\ 00000028 4068 LDR R0,[R0, #+4]
\ 0000002A .... LDR.N R1,??DataTable4_1
\ 0000002C 0860 STR R0,[R1, #+0]
111 }
112 OS_EXIT_CRITICAL();
\ ??OSMemCreate_0:
\ 0000002E 5846 MOV R0,R11
\ 00000030 ........ BL OS_CPU_SR_Restore
113 if (pmem == (OS_MEM *)0) { /* See if we have a memory partition */
\ 00000034 002F CMP R7,#+0
\ 00000036 04D1 BNE.N ??OSMemCreate_1
114 *perr = OS_ERR_MEM_INVALID_PART;
\ 00000038 0298 LDR R0,[SP, #+8]
\ 0000003A 5A21 MOVS R1,#+90
\ 0000003C 0170 STRB R1,[R0, #+0]
115 return ((OS_MEM *)0);
\ 0000003E 0020 MOVS R0,#+0
\ 00000040 1CE0 B.N ??OSMemCreate_2
116 }
117 plink = (void **)addr; /* Create linked list of free memory blocks */
\ ??OSMemCreate_1:
\ 00000042 A146 MOV R9,R4
118 pblk = (INT8U *)addr;
\ 00000044 A046 MOV R8,R4
119 loops = nblks - 1u;
\ 00000046 681E SUBS R0,R5,#+1
\ 00000048 0090 STR R0,[SP, #+0]
120 for (i = 0u; i < loops; i++) {
\ 0000004A 0020 MOVS R0,#+0
\ 0000004C 8246 MOV R10,R0
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