Re: passing command-line arguments, still

[Marek Polacek <polacek@redhat.com>]

On Wed, Mar 16, 2022 at 02:34:09PM -0400, James K. Lowden wrote:
> [I sent this to gcc-help by mistake. I'm reposting it here in case
> anyone has a suggestion. I did take dje's advice, and deleted the build
> directory, except that I preserved config.status and regenerated
> Makefile.  The observed behavior remains unchanged.  TIA.]
> 
> https://git.symas.net:443/cobolworx/gcc-cobol/
> 
> My first question regards command-line options.  I've had no trouble
> defining switches (-f-foo), but no luck defining an option that takes
> an argument.  The latter are accepted by gcobol and not passed to
> cobol1.  

Let's avoid -f-foo; use -ffoo instead, like the rest of GCC.
 
> In cobol/lang.opt, I have:
> 
> indicator-column

Make this 'findicator-column='.  Does that help?

> Cobol Joined Separate UInteger Var(indicator_column) Init(0)
> IntegerRange(0, 8) -indicator-column=<n>	Column after which
> Region B begins
> 
> strace(1) shows the problem:
> 
> [pid 683008] execve("../../../build/gcc/gcobol",
> ["../../../build/gcc/gcobol", "-main", "-o", "obj/SG105A", "-B",
> "../../../build/gcc/", "-f-flex-debug", "-f-yacc-debug",
> "-indicator-column", "1", "cbl/SG105A.cbl", "-lgcobol", "-lm", "-ldl"],
> 0x55a19b487940 /* 36 vars */ <unfinished ...>
> 
> gcobol is being invoked with 3 options used by cobol1:
>       "-f-flex-debug", "-f-yacc-debug", "-indicator-column", "1"
> 
> where -indicator-column takes an argument, "1".  But it's not  passed to
> cobol1: 
> 
> [pid 683008] <... execve resumed>)      = 0
> [pid 683009] execve("../../../build/gcc/cobol1",
> ["../../../build/gcc/cobol1", "cbl/SG105A.cbl", "-quiet", "-dumpbase",
> "SG105A.cbl", "-main", "-mtune=generic", "-march=x86-64", "-auxbase",
> "SG105A", "-f-flex-debug", "-f-yacc-debug", "-o", "/tmp/ccIBQZv1.s"],
> 0x1578290 /* 40 vars */ <unfinished ...>
> 
> The stanza in cobol/lang.opt looks similar to others in
> fortran/lang.opt. The gcc internals don't mention anything else that I
> could find that needs to be done.  I've done a complete rebuild after
> "make distclean".  And still no joy.

doc/options.texi describes options relative well, I think.
 
> We are working with a gcc fork of 10.2.  Our log message says (in part):
> 
>     The "tiny" branch was started with the 10.2.1
> origin/releases/gcc-10 branch> c806314b32987096d79de21e72dc0cf783e51d57)
> 
> What am I missing, please?
> 
> --jkl
> 

Marek