Contiki移植—cfs-coffee 文件系统在pc上的验证

最近移植coffee fs, 为了了解coffee细节，方便调试，因此在pc上编译coffee。

考虑到开虚拟机麻烦，费资源。因此安装Cygwin,在Cygwin下面编译。

1. Create cfs-coffee folder
Create folder example-coffee/ in path contiki-2.5/examples/
Copy example-shell/ file to example-coffee/
Rename example-shell.c to example-coffee.c in the example-coffee/

2. Modfiy Makefile
Modify example-coffee/Makefile

1 CONTIKI_PROJECT = example - coffee
2 all : $(CONTIKI_PROJECT)
3
4 APPS = serial - shell
5 CONTIKI = . . / . .
6
7 include $(CONTIKI) / Makefile . include
8

Modfiy contiki-2.5/platform/native/Makefile.native

1 CONTIKI_TARGET_SOURCEFILES = contiki - main . c clock . c leds . c leds - arch . c \
2 button - sensor . c pir - sensor . c vib - sensor . c xmem . c \
3 sensors . c irq . c cfs - coffee . c
4 // 使用cfs-coffee.c取代原来的cfs-posix.c cfs-posix-dir.c
5

Tips：x86 PC的cpu和platfrom的类型都是native，platform中使用的dev是xmem，因此cfs-coffee-arch.c将一片内存作为device操作，这样可以dump内存内容来观察coffee的工作情况。

3. Modify code
sync to spi_flash config to veriy porting state

1
2 #ifndef CFS_COFFEE_ARCH_H
3 #define CFS_COFFEE_ARCH_H
4
5 #include " contiki-conf.h "
6 #include " dev/xmem.h "
7
8 #define COFFEE_SECTOR_SIZE         ( 4 * 1024UL) // 65536UL
9 #define COFFEE_PAGE_SIZE         512UL     // 256UL
10 #define COFFEE_START             0
11 #define COFFEE_SIZE             (( 2 * 1024 * 1024 ) - COFFEE_SECTOR_SIZE) // ((1024UL * 1024UL) - COFFEE_START)
12 #define COFFEE_NAME_LENGTH         16
13 #define COFFEE_DYN_SIZE             (COFFEE_PAGE_SIZE * 1 )
14 #define COFFEE_MAX_OPEN_FILES         6
15 #define COFFEE_FD_SET_SIZE         8
16 #define COFFEE_LOG_DIVISOR         4
17 #define COFFEE_LOG_SIZE             8192
18 #define COFFEE_LOG_TABLE_LIMIT         256
19 #define COFFEE_MICRO_LOGS         0
20 // #define COFFEE_IO_SEMANTICS         1
21
22 #define COFFEE_WRITE(buf, size, offset)                 \
23         xmem_pwrite(( char * )(buf), (size), COFFEE_START + (offset))
24
25 #define COFFEE_READ(buf, size, offset)                 \
26         xmem_pread(( char * )(buf), (size), COFFEE_START + (offset))
27
28 #define COFFEE_ERASE(sector)                     \
29         xmem_erase(COFFEE_SECTOR_SIZE, COFFEE_START + (sector) * COFFEE_SECTOR_SIZE)
30
31 #define READ_HEADER(hdr, page)                         \
32 COFFEE_READ((hdr), sizeof ( * hdr), (page) * COFFEE_PAGE_SIZE)
33
34 #define WRITE_HEADER(hdr, page)                         \
35 COFFEE_WRITE((hdr), sizeof ( * hdr), (page) * COFFEE_PAGE_SIZE)
36
37 /* Coffee types. */
38 typedef int16_t coffee_page_t;
39
40 #endif /* !COFFEE_ARCH_H */
41

Add test code to example-coffee.c

4. Build and Debug

Cygwin不包含insight packet，因此使用DDD+gdb完成debug

Tips1: ddd使用需要安装Cygwin/X(x11 packet)，参见http://x.cygwin.com/docs/ug/setup.html
Tips2: ddd的启动需要先启动Cygwin/X，在XWin中启动ddd，启动XWind的方法见http://x.cygwin.com/docs/ug/using.html#using-starting

我使用startxwin命令启动XWin

在XWin中启动ddd:

启动后的UI，可在DDD中进行调试：

来源：oschina

链接：https://my.oschina.net/u/563842/blog/78734

标签

contiki

coffee

cygwin