https://sourceware.org/bugzilla/show_bug.cgi?id=27625
Bug ID: 27625
Summary: powerpc64: gold erroneously rejects linking code that
calls __tls_get_addr
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: bugdal at aerifal dot cx
CC: ian at airs dot com
Target Milestone: ---
When targeting powerpc64, attempting to link a source file that calls
__tls_get_addr directly (rather than produced as a result of a thread-local
object access with the associated relocations to facilitate relaxation)
produces the message:
"error: __tls_get_addr call lacks marker reloc"
This breaks linking of glibc and musl libc.
The check that's triggering seems to correspond to one lld wrongly added and
then reverted in
https://github.com/llvm/llvm-project/commit/9267caebfa9209e4ae69517043d008d1b83307aa
(see also https://reviews.llvm.org/D92959), which the BFD linker does not do.
Calls to __tls_get_addr are only candidates for relaxation with the appropriate
relocations attached to them; otherwise, they should be treated as normal
function calls and should not produce link errors.
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