Subject:
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Re: Warning cleanup questions with gcc3.2
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Thu, 5 Sep 2002 21:50:34 GMT
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Viewed:
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2174 times
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John Jorgensen wrote:
> a) warning: multi-line string literals are deprecated
> These seem to be mostly quotes around blocks of assembly code.
I am running 3.1 and got the same error. But for user programs only
because a line in boot/config.h is too long. In fact this is no error
but just a warning. Looks bad but the code is ok.
> b) warning: const qualifier ignored on asm
> These seem to be due to things like this;
>
> #define bit_set(byte,bit) \
> __asm__ ASMCONST ( "bset %0,@%1\n" : : "i" (bit),"r" (byte))
>
> I believe the right thing to do here is to remove the "ASMCONST".
If you look at the beginning of the file (I think it is bitops.h), there
is a statement like
#ifdef CXX
# define ASMCONST
#else
# define ASMCONST const
#endif
Changing this to
#define ASMCONST
will help.To be backward compatible to old gcc, one should check for the
gcc version but I haven't done this yet.
> So the questions I have are; Are these backward compatible solutions? Are
> they good solutions? Should I spend the time to whip up a patch that will
> touch a lot of files...
I think the warning messages for the deprecated stuff building the
kernel are annoying but no problem at all. But I don't want to have such
messages while compiling a user program, because I once compile the
kernel but often compile my user programs. So I changed the long line in
config.h, did the small change in bitops.h and have no warnings in my
user programs.
Regards,
Michael
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Message has 1 Reply:
Message is in Reply To:
 | | Warning cleanup questions with gcc3.2
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| When compiling brickos with gcc3.2, I get a lot (about 360 or so) of warnings about two things; a) warning: multi-line string literals are deprecated These seem to be mostly quotes around blocks of assembly code. Some of the code in lib/mint seems (...) (22 years ago, 5-Sep-02, to lugnet.robotics.rcx.legos)
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