[PATCH] S390: Refactor ifunc resolvers due to false debuginfo.

[Joseph Myers]

On Mon, 13 Jun 2016, Stefan Liebler wrote:

> On 06/10/2016 06:59 PM, Joseph Myers wrote:
> > Are the debug info issues you describe unique to S/390 because of some
> > peculiarity of how S/390, and only S/390, defines IFUNC resolvers in
> > glibc, or do they apply to any other architectures as well and so need
> > fixes there?
> 
> The libc_ifunc macro in include/libc-symbols.h also uses the asm-name
> and the debug-information contains the DW_AT_linkage_name field.

Then I think the goal should be to arrange things so that as much 
infrastructure as possible is shared between architectures defining IFUNC 
resolvers in C code, so that they all avoid this pitfall, rather than just 
fixing one architecture.

-- 
Joseph S. Myers
joseph@codesourcery.com