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dfb93f1158
Currently, when `mips_elf_calculate_relocation' is asked to relocate an
undefined symbol, it reports an error or a warning and immediately
returns without performing the relocation. This is fine if the link
fails, but if unresolved_syms_in_objects == RM_GENERATE_WARNING, the
link will continue and output some unrelocated code, which is a
regression from commit e7e2196da3 ("MIPS/BFD: Correctly report
undefined relocations").
Fix this by continuing after calling the `undefined_symbol' hook unless
this is an error condition.
bfd/
PR ld/21900
* elfxx-mips.c (mips_elf_calculate_relocation): Only return
after calling `undefined_symbol' hook if this is an error
condition. Assume the value of 0 for the symbol requested
otherwise.
ld/
PR ld/21900
* testsuite/ld-mips-elf/undefined-warn.d: New test.
* testsuite/ld-mips-elf/undefined.s: Add padding at the end.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new test.
29 lines
1009 B
ArmAsm
29 lines
1009 B
ArmAsm
# Relocations against undefined symbols would be incorrectly let through
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# by mips_elf_calculate_relocation() once the result of the
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# ->undefined_symbol() callback has been interpreted in the opposite
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# sense. The link would fail anyway, but for R_MIPS_GOT_PAGE relocations
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# a failure of the following assertion:
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#
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# BFD_ASSERT (h->dynindx >= global_got_dynindx);
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#
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# would additionally be reported in mips_elf_global_got_index(), because
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# at this point h->dynindx for the undefined symbol would be set to -1.
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# Other kinds of GOT relocations allocate a GOT index for the symbol
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# referred and set its h->dynindx in _bfd_mips_elf_check_relocs(), but
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# R_MIPS_GOT_PAGE relocations only allocate a GOT page at that point and
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# for undefined symbols the page never gets resolved any further.
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.abicalls
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.text
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.globl foo
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.type foo, @function
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.ent foo
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foo:
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li $2, %got_page(bar)
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.end foo
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.size foo, . - foo
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# Force some (non-delay-slot) zero bytes, to make 'objdump' print ...
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.align 4, 0
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.space 16
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