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authorH.J. Lu <hjl.tools@gmail.com>2020-09-10 07:52:03 -0700
committerH.J. Lu <hjl.tools@gmail.com>2020-09-10 07:52:20 -0700
commit93d49941edbb5274bee6ce3e547a07c7ce4c4301 (patch)
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parent918619e5e591c492b1a67f8ce125aa8728eb4497 (diff)
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ld: Add more tests for --as-needed
Prior to commit 1e3b96fd6cf0c7d018083994ad951ccf92aba582 Author: Alan Modra <amodra@gmail.com> Date: Fri Sep 4 13:54:21 2020 +0930 Allow plugin syms to mark as-needed shared libs needed when removing unused IR symbol references, ld didn't add unnecessary DT_NEEDED libraries which may lead to undefined symbol reference in a --as-needed library when the symbol is defined in a prior --as-needed library and there is no reference in relocatable inputs. This behavior is desirable since it ensures that both lazy and non-lazy bindings work the same way. The problem is with --as-needed libraries, which happens with and without LTO. Now, the linker may add many unnecessary DT_NEEDED libraries for IR inputs. PR ld/26590 * testsuite/ld-elf/pr26590.err: New file. * testsuite/ld-elf/pr26590a.c: Likewise. * testsuite/ld-elf/pr26590b.c: Likewise. * testsuite/ld-elf/pr26590c.c: Likewise. * testsuite/ld-elf/pr26590d.c: Likewise. * testsuite/ld-elf/shared.exp: Run ld/26590 tests.
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