[Scons-users] How to generate symbols list on GNU Arm Embedded Toolchain

[Marco Pastorelli]

Hi Bill,

I'm using MCUXpresso, it's an Eclipse-based IDE provided by NXP

Thanks!
Marco

On Fri, 31 Jul 2020 at 18:35, Bill Deegan <bill at baddogconsulting.com> wrote:

> Which IDE are you using?
>
> On Fri, Jul 31, 2020 at 7:52 AM Marco Pastorelli <mpastorelli at gmail.com>
> wrote:
>
>> Hi all!
>>
>> I’m using SCons to build an Arm Cortex-M7 project based on GNU Arm
>> Embedded Toolchain.
>> Other than compiling the project, I’d like to generate the list of
>> symbols to import from my IDE to get an accurate code highlighting.
>> I wrote some code to generate the list of header files included in the
>> projects, then I’m trying to get the symbol form every header file.
>> The main issue I’m facing is that the include hierarchy is not preserved,
>> so for example I got errors from freertos because FreeRTOS.h must appear in
>> source files before include task.h.
>>
>> Does anybody know how to fix this problem or a different method to
>> generate the symbols list?
>>
>> Thanks! Below a snippet of my code
>> Marco
>>
>>
>> def generate_include_list(env, target, source):
>>     """create a file to store include paths in GNU style, to be loaded
>> with @"""
>>     paths = []
>>     for p in env['CPPPATH']:
>>         path = Path(p)
>>         try:
>>             path.is_dir()
>>             paths.append(str(path))
>>         except OSError:
>>             pass
>>     with open('include.list', 'w') as fileout:
>>         for path in paths:
>>             fileout.write(' -I ' + path.replace('\\', '/'))
>>
>>
>> def cleanup_header_list(env, target, source):
>>     """get rid of the toolchain comments, we only need a list of real
>> file paths"""
>>     with open('tmp_header_file.list', 'r') as filein:
>>         lines = []
>>         for line in filein:
>>             path = Path(line.strip())
>>             try:
>>                 path.is_file()
>>                 lines.append(str(path))
>>             except OSError:
>>                 pass
>>     lines.reverse()
>>     with open('header_file.list', 'w') as fileout:
>>         for line in reversed(lines):
>>             fileout.write(line.replace('\\', '/') + '\n')
>>
>>
>> # get the list of the header files (except toolchain header files)
>> # in case also the toolchain header files are needed, use the option -M
>> env.Command(
>>     target='tmp_header_file.list',
>>     source='',
>>     action=[generate_include_list, '$CC -H -MM src/main.c @include.list
>> $CCFLAGS > $TARGET', cleanup_header_list]
>> )
>>
>>
>> # from all the header files get the symbols
>> env.Command(
>>     target='symbol.list',
>>     source='',
>>     action=['type header_file.list', '$CC -E -dM @include.list $CCFLAGS
>> @header_file.list > $TARGET']
>> )
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