#240 predefined macro with SDCC's subversion revision

[Frieder Ferlemann]

It would be nice if there was a macro holding SDCC's svn revision as well (5068 at the time of this writing).

This would allow to embed the exact version of the compiler with wich a source was compiled into the binary:

int __code __at(0xffb0) compiler_version = SDCC;
int __code __at(0xffb8) compiler_revision = SDCC_REVISION;

[Maarten Brock]

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Very nice.
Can you add it to preProcess() in SDCCmain.c? And document it in the manual?

Please also put it on the release wiki and esp. in the new features list at the bottom of the page.

Maybe you can even combine it with the request for SDCC_INT_LONG_REENT by Paul Stoffregen on the developer mailing list d.d. 2008-020-04?

[Frieder Ferlemann]

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> Can you add it to preProcess() in SDCCmain.c?

done. Thanks for the pointer:)

> And document it in the manual?

I tried. But my local LyX version is 1.5.2 whereas the LyX version used for
the manual in the repository is 1.4.5.
Unfortunately the LyX format seems to have changed slightly, so although
I only made a new entry within the table in section 3.19, this causes
quite a few changes (so upgrading to LyX 1.4.x to 1.5.x is probably
something to do after release) :

diff -u sdccman.lyx.new sdccman.lyx | wc
11478 24561 239491

> request for SDCC_INT_LONG_REENT

did so "by hand". Probably the optionsTable[] (SDCCmain.c line 148)
should (pre/post 2.8.0) get a new column so that the appropriate
compiler options could be automatically converted into precompiler
defines? (setting Status to Pending)

[Borut Ražem]

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Frieder, can you send me the sdccman changes in text format and I'll update it.

The LyX version on the build machine is still 1.4.x, so we can't change the format until the build machine is upgraded.

Borut

[Borut Ražem]

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Docummented predefined macros SDCC_REVISION, SDCC_PARMS_IN_BANK1, SDCC_FLOAT_REENT and SDCC_INT_LONG_REENT.

> Probably the optionsTable[] (SDCCmain.c line 148)
> should (pre/post 2.8.0) get a new column so that the appropriate
> compiler options could be automatically converted into precompiler
> defines? (setting Status to Pending)

Status Pending will be automatically changed to Closed after a month or so. I recommend to open an other RFE and close this one.

Borut

[Jesus Calvino-Fraga]

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Along this lines, would it be possible to add a predefined macro to indicate that the compiled file contains the main() function?

[Borut Ražem]

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Jesus, if I understand you well, the answer is no: the "predefined macros" are passed from the C front end, which just elaborates the command line options, to the C preprocessor, which substitutes the macro values with definitions (among other things), so none of them have a clue about function names. The C source file gets parsed after being preprocessed and the parser is the guy who knows the function names, but in that moment the preprocessing has already finished, so it's too late...

Borut

[Frieder Ferlemann]

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Hi Borut, thanks for updating the manual. Closing.