dollars-in-identifiers on ARM, was: Creating and using GCJ ARM cross compiler
Mon Apr 21 13:03:00 GMT 2008
Matthijs van de Water wrote:
> On Fri, Apr 18, 2008 at 7:17 PM, Andrew Haley <firstname.lastname@example.org> wrote:
>>> error: stray '$' in program
>> > [error repeated a lot of times]
>> > If I add "-fdollars-in-identifiers" to my compile statement, it
>> > completes without error, but I would expect this not to be necessary.
>> Well, it is. For some reason I could never understand, it's needed on arm.
>> I added -fdollars-in-identifiers in several places in the libgcj build.
> The reason for this is probably that gcc/config/arm/aout.h has:
> /* Arm Assembler barfs on dollars. */
> #define DOLLARS_IN_IDENTIFIERS 0
No, that's not the reason, it's just the implementation.
> See also http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24111 which if I
> read it correctly says that what is done with GCJ on ARM violates EABI
"4.4.4 Symbol names
"All symbol names containing a dollar character (â$â) are reserved to the ARM EABI."
> Is this something that can/should be fixed?
No. This bug is closed, RESOLVED INVALID. I don't think it should
be fixed. The only reasonable way to fix it IMO is to change the
ARM ELF spec, and that's not at all likely.
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