[Bug middle-end/21018] Initializing string literal data improperly marked frame-relative?, should be readonly static const.

["schlie at comcast dot net" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From schlie at comcast dot net  2005-04-16 18:41 -------
Subject: Re:  Initializing string literal data
 improperly marked frame-relative?, should be readonly static const.

> From: Paul Schlie <schlie@comcast.net>
> Subject: Re: [Bug middle-end/21018] Initializing string literal data
> improperly marked frame-relative?, should be readonly static const.
> 
>> Note the C.x variables are not normal VAR_DECLs but CONST_DECL so maybe avr
>> should be changed to recongize them as such.
> 
> Actually the problem seems then be that literal string constants aren't
> being consistently defined through CONST_DECL's (just as initializing char
> array data, which are equivalent to string initializers, and all other literal
> and static constants which end up being stored as literal data are); for which
> MEM_READONLY_P allows all memory references to, to be easily identified, which
> seems to be it's intent.
> 
> Is there any reason that literal string constant data shouldn't be similarly
> declared and correspondingly identifiable? (or just an oversight?)

I suspect it was likely an artifact of the now depreciated writeable-strings
extension, which previously pretended that literal string constants were not
READONLY after being copied from the executable image into read/write
memory.




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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21018