sh:Enhanced compilation system

[crafcat7]

Summary

While simplifying some of the Simulator-based configurations, I found one area that could be improved - I added an extra layer to retrieve paths at compile time.
This means that we can extract the script and include paths to the common directory, and in common we only need to store some private files for configuration.

Impact

Added a layer of path searching, now common is placed in a flat directory with board, if there is no include / script stored in the board directory, then it will look in common.

Testing

Based on this change, the local board path accomplishes the desired goal and does not affect configurations such as sim:nsh

[acassis]

@crafcat7 did you compare the build time before and after this modification?

[crafcat7]

@crafcat7 did you compare the build time before and after this modification?

I'm not so sure my method of comparison is accurate the way I do it:

1. . /tools/configure.sh -l sim:nsh
2. time make

The resulting data is as follows:
Before: modification: make 38.68s user 15.02s system 107% cpu 49.926 total
After: make 38.85s user 14.89s system 107% cpu 49.927 total

Meanwhile, considering that there might be some calculation error when running, I tried it several times, and it's around +- 1s.
So it looks like the impact on compile time should be relatively small.

[crafcat7]

I have encountered a problem. I tried to go and compile Native’s NuttX in my local Windows environment before making the changes, but it looks like there are some issues, so I can’t verify that the commits are correct after the changes.
Here's the scene of the problem I encountered

$ ./tools/configure.bat sim:nsh
-bash: ./tools/configure.bat: No such file or directory

/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
process_begin: CreateProcess(D:\cygwin\bin\cc, cc -O2 -Wall -Wstrict-prototypes -Wshadow -DHAVE_STRTOK_C=1 -DHAVE_STRTOK_C=1 -o incdir incdir.c, ...) failed.
make (e=5):
make: *** [incdir] Error 5
tools/version.sh: line 19: $'\r': command not found
tools/version.sh: line 21: $'\r': command not found
tools/version.sh: line 23: $'\r': command not found
tools/version.sh: line 26: $'\r': command not found
tools/version.sh: line 30: $'\r': command not found
tools/version.sh: line 32: syntax error near unexpected token `$'in\r''
'ools/version.sh: line 32: `  case $1 in
mv: cannot stat '.version.tmp': No such file or directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
/usr/bin/sh: line 1: /dev/null\: Not a directory
process_begin: CreateProcess(D:\cygwin\bin\cc, cc -O2 -Wall -Wstrict-prototypes -Wshadow -DHAVE_STRTOK_C=1 -DHAVE_STRTOK_C=1 -o incdir incdir.c, ...) failed.
make (e=5):
make[1]: *** [incdir] Error 5
tools/version.sh: line 19: $'\r': command not found
tools/version.sh: line 21: $'\r': command not found
tools/version.sh: line 23: $'\r': command not found
tools/version.sh: line 26: $'\r': command not found
tools/version.sh: line 30: $'\r': command not found
tools/version.sh: line 32: syntax error near unexpected token `$'in\r''
'ools/version.sh: line 32: `  case $1 in
mv: cannot stat '.version.tmp': No such file or directory
D:\cygwin\home\crafcat7\nuttxspace\nuttx\tools\unlink.sh: line 21: $'\r': command not found
D:\cygwin\home\crafcat7\nuttxspace\nuttx\tools\unlink.sh: line 23: $'\r': command not found
D:\cygwin\home\crafcat7\nuttxspace\nuttx\tools\unlink.sh: line 25: $'\r': command not found
D:\cygwin\home\crafcat7\nuttxspace\nuttx\tools\unlink.sh: line 56: syntax error: unexpected end of file
tools/Unix.mk:406: recipe for target 'clean_dirlinks' failed
make[1]: *** [clean_dirlinks] Error 2
tools/Unix.mk:778: recipe for target 'distclean' failed
make: *** [distclean] Error 2

[xiaoxiang781216]

let's keep the code sync between Windows and Linux, the native Windows build need more work.