📄 os_mem.lst
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# #
# IAR ARM ANSI C/C++ Compiler V4.42A/W32 KICKSTART 10/Jan/2008 16:48:29 #
# Copyright 1999-2005 IAR Systems. All rights reserved. #
# #
# Cpu mode = arm #
# Endian = little #
# Stack alignment = 4 #
# Source file = D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \uCOS-II\Source\os_mem.c #
# Command line = D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \uCOS-II\Source\os_mem.c -lCN #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\Flash\List\ #
# -o D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Softw #
# are\EvalBoards\NXP\LPC2468-EA\IAR\OS-View\Flash\Obj\ #
# -z3 --no_cse --no_unroll --no_inline #
# --no_code_motion --no_tbaa --no_clustering #
# --no_scheduling --debug --cpu_mode arm --endian #
# little --cpu ARM7TDMI-S --stack_align 4 -e --fpu #
# None --dlib_config "C:\Program Files\IAR #
# Systems\Embedded Workbench 4.0 #
# Kickstart\arm\LIB\dl4tpannl8n.h" -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\ -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\..\..\..\..\. #
# .\ucos-ii\ports\arm\generic\iar\ -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\..\..\..\..\. #
# .\ucos-ii\source\ -I D:\work\资料\嵌入式操作系统\UCO #
# S-II\Micrium\Software\EvalBoards\NXP\LPC2468-EA\IAR\ #
# OS-View\..\..\..\..\..\ucosview\source\ -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\..\..\..\..\. #
# .\ucosview\ports\arm7\lpc2468\iar\ -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\..\..\..\..\. #
# .\uc-lib\ -I D:\work\资料\嵌入式操作系统\UCOS-II\Mic #
# rium\Software\EvalBoards\NXP\LPC2468-EA\IAR\OS-View\ #
# ..\..\..\..\..\uc-cpu\ -I #
# D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\..\..\..\..\. #
# .\uc-cpu\arm\IAR\ -I D:\work\资料\嵌入式操作系统\UCO #
# S-II\Micrium\Software\EvalBoards\NXP\LPC2468-EA\IAR\ #
# OS-View\..\BSP\ -I "C:\Program Files\IAR #
# Systems\Embedded Workbench 4.0 Kickstart\arm\INC\" #
# List file = D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\Flash\List\os #
# _mem.lst #
# Object file = D:\work\资料\嵌入式操作系统\UCOS-II\Micrium\Software #
# \EvalBoards\NXP\LPC2468-EA\IAR\OS-View\Flash\Obj\os_ #
# mem.r79 #
# #
# #
##############################################################################
D:\work\资料\嵌入式操作系统\UCOS-II\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 1992-2007, Jean J. Labrosse, Weston, FL
8 * All Rights Reserved
9 *
10 * File : OS_MEM.C
11 * By : Jean J. Labrosse
12 * Version : V2.84
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 > 0) && (OS_MAX_MEM_PART > 0)
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 * err 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 segment CODE, align 4, keep-with-next
59 OS_MEM *OSMemCreate (void *addr, INT32U nblks, INT32U blksize, INT8U *err)
60 {
\ OSMemCreate:
\ 00000000 F0412DE9 PUSH {R4-R8,LR}
\ 00000004 0050B0E1 MOVS R5,R0
\ 00000008 0160B0E1 MOVS R6,R1
\ 0000000C 0270B0E1 MOVS R7,R2
\ 00000010 0340B0E1 MOVS R4,R3
61 OS_MEM *pmem;
62 INT8U *pblk;
63 void **plink;
64 INT32U i;
65 #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
66 OS_CPU_SR cpu_sr = 0;
\ 00000014 0000A0E3 MOV R0,#+0
67 #endif
68
69
70
71 #if OS_ARG_CHK_EN > 0
72 if (err == (INT8U *)0) { /* Validate 'err' */
\ 00000018 000054E3 CMP R4,#+0
\ 0000001C 0100001A BNE ??OSMemCreate_0
73 return ((OS_MEM *)0);
\ 00000020 0000A0E3 MOV R0,#+0
\ 00000024 460000EA B ??OSMemCreate_1
74 }
75 if (addr == (void *)0) { /* Must pass a valid address for the memory part.*/
\ ??OSMemCreate_0:
\ 00000028 000055E3 CMP R5,#+0
\ 0000002C 0300001A BNE ??OSMemCreate_2
76 *err = OS_ERR_MEM_INVALID_ADDR;
\ 00000030 6200A0E3 MOV R0,#+98
\ 00000034 0000C4E5 STRB R0,[R4, #+0]
77 return ((OS_MEM *)0);
\ 00000038 0000A0E3 MOV R0,#+0
\ 0000003C 400000EA B ??OSMemCreate_1
78 }
79 if (((INT32U)addr & (sizeof(void *) - 1)) != 0){ /* Must be pointer size aligned */
\ ??OSMemCreate_2:
\ 00000040 030015E3 TST R5,#0x3
\ 00000044 0300000A BEQ ??OSMemCreate_3
80 *err = OS_ERR_MEM_INVALID_ADDR;
\ 00000048 6200A0E3 MOV R0,#+98
\ 0000004C 0000C4E5 STRB R0,[R4, #+0]
81 return ((OS_MEM *)0);
\ 00000050 0000A0E3 MOV R0,#+0
\ 00000054 3A0000EA B ??OSMemCreate_1
82 }
83 if (nblks < 2) { /* Must have at least 2 blocks per partition */
\ ??OSMemCreate_3:
\ 00000058 020056E3 CMP R6,#+2
\ 0000005C 0300002A BCS ??OSMemCreate_4
84 *err = OS_ERR_MEM_INVALID_BLKS;
\ 00000060 5B00A0E3 MOV R0,#+91
\ 00000064 0000C4E5 STRB R0,[R4, #+0]
85 return ((OS_MEM *)0);
\ 00000068 0000A0E3 MOV R0,#+0
\ 0000006C 340000EA B ??OSMemCreate_1
86 }
87 if (blksize < sizeof(void *)) { /* Must contain space for at least a pointer */
\ ??OSMemCreate_4:
\ 00000070 040057E3 CMP R7,#+4
\ 00000074 0300002A BCS ??OSMemCreate_5
88 *err = OS_ERR_MEM_INVALID_SIZE;
\ 00000078 5C00A0E3 MOV R0,#+92
\ 0000007C 0000C4E5 STRB R0,[R4, #+0]
89 return ((OS_MEM *)0);
\ 00000080 0000A0E3 MOV R0,#+0
\ 00000084 2E0000EA B ??OSMemCreate_1
90 }
91 if ((blksize % sizeof(void *)) != 0) { /* Must contain space for an integral number ... */
\ ??OSMemCreate_5:
\ 00000088 030017E2 ANDS R0,R7,#0x3 ;; Zero extend
\ 0000008C 000050E3 CMP R0,#+0
\ 00000090 0300000A BEQ ??OSMemCreate_6
92 *err = OS_ERR_MEM_INVALID_SIZE; /* ... of pointer sized items */
\ 00000094 5C00A0E3 MOV R0,#+92
\ 00000098 0000C4E5 STRB R0,[R4, #+0]
93 return ((OS_MEM *)0);
\ 0000009C 0000A0E3 MOV R0,#+0
\ 000000A0 270000EA B ??OSMemCreate_1
94 }
95 #endif
96 OS_ENTER_CRITICAL();
\ ??OSMemCreate_6:
\ 000000A4 ........ _BLF OS_CPU_SR_Save,??OS_CPU_SR_Save??rA
97 pmem = OSMemFreeList; /* Get next free memory partition */
\ 000000A8 ........ LDR R1,??DataTable4 ;; OSMemFreeList
\ 000000AC 008091E5 LDR R8,[R1, #+0]
98 if (OSMemFreeList != (OS_MEM *)0) { /* See if pool of free partitions was empty */
\ 000000B0 ........ LDR R1,??DataTable4 ;; OSMemFreeList
\ 000000B4 001091E5 LDR R1,[R1, #+0]
\ 000000B8 000051E3 CMP R1,#+0
\ 000000BC 0400000A BEQ ??OSMemCreate_7
99 OSMemFreeList = (OS_MEM *)OSMemFreeList->OSMemFreeList;
\ 000000C0 ........ LDR R1,??DataTable4 ;; OSMemFreeList
\ 000000C4 ........ LDR R2,??DataTable4 ;; OSMemFreeList
\ 000000C8 002092E5 LDR R2,[R2, #+0]
\ 000000CC 042092E5 LDR R2,[R2, #+4]
\ 000000D0 002081E5 STR R2,[R1, #+0]
100 }
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