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RE: Preprocessing Assembly
- From: "Bruce Adams" <bruadams at tycoint dot com>
- To: <cygwin at cygwin dot com>,<crossgcc at sources dot redhat dot com>
- Date: Thu, 12 Sep 2002 16:39:10 +0100
- Subject: RE: Preprocessing Assembly
> -----Original Message-----
> From: Dhananjay R. Deshpande [mailto:firstname.lastname@example.org]
> Sent: Thursday, September 12, 2002 3:03 PM
> To: Dhananjay R. Deshpande; Bruce Adams; email@example.com;
> Subject: RE: Preprocessing Assembly
> > > Is there a way to force gcc to preprocess assembly using a switch.
> > Yes. Use "-x assembler-with-cop" switch.
> Typo.. Use "-x assembler-with-cpp" switch.
Ah ok. Missed that one when I RTFM. You don't need the space though. One
The prebuilt rtems compiler I'm using (being stuck unable to build my own
for now) can't find cpp0. I copied that into C:\cygwin\opt\rtems\bin from
C:\cygwin\opt\rtems\lib\gcc-lib\m68k-rtems\2.95.3 and it works. However, I
now have syntax errors in my assembly but the line numbers refer to the
preprocessed output rather than the original file.
Closer inspection of my workaround to use gcc -E reveals something more
insidious and slightly
surprising. Gcc -E produces no output at all. This seems to go for both
the cygwin native gcc and
the rtems one. If I run cpp0.exe directly I get output. Neither cpp or gcc
put anything on stdout.
I know the preprocessor works (people would have noticed if it didn't!) so
what am I Missing?
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