Messages in this thread | | | Date | Tue, 7 Jun 2011 01:43:49 -0700 | From | Josh Triplett <> | Subject | Re: Status of function-sections work? |
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On Tue, Jun 07, 2011 at 10:11:15AM +0200, Denys Vlasenko wrote: > On Monday 06 June 2011 03:15, Josh Triplett wrote: > > Hello, > > > > I found your work in 2010 on using function-sections and data-sections > > to eliminate unused code in the kernel. I'd like to make use of this > > work to try to build an extremely space-constrained kernel. > > > > It looks like a few of your patches made it into the kernel, but most of > > the linker script changes don't seem to have made it in. I wanted to > > find out the status of this work. Do you still have this working? Do > > you have versions of your patches for current Linux? > > parisc uses ^ in some identifiers. Therefore we need something like > [A-Za-z0-9_$^]* in linker script. This wasn't working with GNU ld - > ^ is not a valid char for pattern. Use of more general [!.]* > was also impossible - ! is not a valid char too. > > Therefore I asked binutils people to fix this (they agreed) and > decided to wait for a fixed binutils to be released.
Makes sense. Thanks for the explanation and status.
Do you know if the fix has gone into binutils, either in a release or the latest snapshot from version control? If not, does a patch exist?
- Josh Triplett
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