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ld: Add more tests for --as-needed

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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.
This commit is contained in:
H.J. Lu
2020-09-10 07:52:03 -07:00
parent 918619e5e5
commit 93d49941ed
7 changed files with 99 additions and 0 deletions
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@ -1,3 +1,13 @@
2020-09-10 H.J. Lu <hongjiu.lu@intel.com>
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.
2020-09-10 Alan Modra <amodra@gmail.com>
* testsuite/ld-elf/pr26580-2.sd: Accept undefined symbol.