https://llvm.org/bugs/show_bug.cgi?id=27896
Bug ID: 27896
Summary: Create unique name for weak symbol on coff.
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: MC
Assignee: unassignedb...@nondot.org
Reporter: rafael.espind...@gmail.com
CC: david.majne...@gmail.com, llvm-bugs@lists.llvm.org,
r...@google.com
Classification: Unclassified
Given
---------------------------
.data
.weak a
a:
.long 42
---------------------------
MC always creates a .weak.a.default. That means that given any two files that
define a "weak" symbol "a", there will be a link error (duplicated
.weak.a.default).
With gas one gets slightly more unique names. It looks like it uses the
previous global. Given
--------------------------
.global foobar
.data
.weak a
a:
.long 42
-------------------------
it produces .weak.a.foobar and given
-------------------------
.global zed
.data
.weak a
a:
.long 42
-------------------------
it produces .weak.a.zed.
I don't think how we get a more unique name is particularly important, just
that we do.
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