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Subject [GitHub] [incubator-nuttx] xiaoxiang781216 edited a comment on issue #793: boards/Board.mk: use genromfs to make romfs image
Date Wed, 15 Apr 2020 08:41:40 GMT
xiaoxiang781216 edited a comment on issue #793: boards/Board.mk: use genromfs to make romfs
image
URL: https://github.com/apache/incubator-nuttx/pull/793#issuecomment-613898005
 
 
   > is this an alternative to NSH_CUSTOMROMFS?
   > 
   
   RCSRCS/RCRAWS isn't an alternative which is designed to work with NSH_ROMFSETC/NSH_ARCHROMFS/NSH_CUSTOMROMFS.
In the old workflow, if user enable NSH_ROMFSETC, he/she need prepare nsh_romfsimg.h by self
or utilize mkromfs.sh(but this approach is only suitable for demo purpose). In the new workflow,
user just need:
   1.Enable NSH_ROMFSETC
   2.Append script files into RCSRCS
   2.Append binary files to RCRAWS
   Then the build system will automatically generate romfs.img and convert to header file
for you.
   
   > how is a user supposed to specify RCSRCS and RCRAWS?
   
   Here is a demo boards/arm/chip/board/src/Makefile
   ```
   RCSRCS := rcS
   
   VPATH += :etc/init.d
   DEPPATH += --dep-path etc/init.d
   
   include $(TOPDIR)/boards/Board.mk
   ```
   
   And boards/arm/chip/board/src/etc/init.d/rcS
   ```
   #include <nuttx/config.h>
   
   #ifdef CONFIG_NSH_PROC_MOUNTPOINT
   mount -t procfs CONFIG_NSH_PROC_MOUNTPOINT
   #endif
   
   #ifdef CONFIG_FS_TMPFS
   mount -t tmpfs CONFIG_LIBC_TMPDIR
   #endif
   
   #ifndef CONFIG_NSH_DISABLE_UNAME
   uname -a > /dev/syslog
   #endif
   ```
   
   Of course, user could add more script or config files to RCSRCS/RCRAWS, the only between
RCSRCS and RCRAWS is that RCSRCS will go through C preprocessor but RCRAWS not.

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