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7ba115508a
Two pieces to this puzzle: 1) Revert HJ's fix for PR13250 so that size and alignment isn't sticky, instead attack the real underlying problem that _bfd_generic_link_add_one_symbol does the wrong thing in making a common section in a shared library bfd. 2) Save and restore common u.c.p fields, which hold the section and alignment. A better fix for (2) would be to throw away all of that horrible code saving and restoring the hash table when loading as-needed library symbols, and instead do a scan over as-needed library symbols before adding anything. bfd/ PR 13250 PR 26580 * elflink.c (_bfd_elf_merge_symbol): Make "override" a bfd**. Return oldbfd in override when old common should override new common. (_bfd_elf_add_default_symbol): Adjust to suit. (elf_link_add_object_symbols): Likewise. Pass "override" to _bfd_generic_link_add_one_symbol. Save and restore common u.c.p field for --as-needed shared libraries. Revert pr13250 changes. ld/ * testsuite/ld-elf/pr26580-a.s, * testsuite/ld-elf/pr26580-b.s, * testsuite/ld-elf/pr26580-1.sd, * testsuite/ld-elf/pr26580-2.sd: New tests * testsuite/ld-elf/comm-data.exp: Run new tests. * testsuite/ld-elf/pr26580-a.c, * testsuite/ld-elf/pr26580-b.c, * testsuite/ld-elf/pr26580-3.out, * testsuite/ld-elf/pr26580-4.out: New tests. * testsuite/ld-elf/shared.exp: Run new tests. |
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