This is the mail archive of the mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: debug strings output order is arbitrary

On Mon, Mar 17, 2014 at 10:01 PM, Martin Uecker
<> wrote:
> Am Mon, 17 Mar 2014 09:44:53 +0100
> schrieb Richard Biener <>:
>> On Sun, Mar 16, 2014 at 3:58 AM, Martin Uecker <> wrote:
>> >
>> > Hi list,
>> >
>> > the strings in the ".debug_str" section are output
>> > in an arbitrary order. Could this be changed?
>> >
>> > The function 'output_indirect_strings' in 'gcc/dwarf2out.c'
>> > uses htab_traverse which then outputs the string in the
>> > order they appear in the hash table. Instead, it would
>> > be nicer to output them based on their labels (which are
>> > assigned based on the order of creation).
>> >
>> > This would minimize differences between builds with
>> > slightly different build environments, e.g. directory.
>> Can you propose a patch?  Note that at creation time only
>> the string itself is known, so sorting after the string may
>> be another possibility.
> I will propose a patch.
> Sorting at the end would be easiest, but one could also keep
> track of the order. Is this performance critical?

Sure it is.

> Also it seems there is other stuff which is output/indexed
> in hash table order, maybe this should be changed to.



> Martin

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]