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Re: Enable linknamespace testing for libdl and libcrypt
On Wed, 16 Nov 2016, Florian Weimer wrote:
> On 11/16/2016 08:06 PM, Joseph Myers wrote:
> > +linknamespace-libs-XPG3 = $(linknamespace-libs-isoc) \
> > + $(common-objpfx)crypt/libcrypt.a
>
> Does the linknamespace test perform a full link, and fails if it encounters
> undefined symbols?
No, it has its own emulation of linker logic, and ignores failure to find
a definition of a symbol (for example, libgcc symbols - it doesn't look
for libgcc.a / libgcc_eh.a, so it won't detect namespace issues there).
(If an undefined symbol breaks namespace rules, that will still result in
a test failure unless whitelisted in linknamespace.pl, whether or not a
definition of that symbol was found.)
--
Joseph S. Myers
joseph@codesourcery.com