d3e52e120b
When assembling a forward reference the symbol will be unknown and so during do_t_adr we cannot set the thumb bit. The bit it set so early to prevent relaxations that are invalid. i.e. relaxing a Thumb2 to Thumb1 insn when the symbol is Thumb. But because it's done so early we miss the case for forward references. This patch changes it so that we additionally check the thumb bit during the internal relocation processing. In principle we should be able to only set the bit during reloc processing but that would require changes to the other relocations that the instruction could be relaxed to. This approach still allows early relaxations (which means that we have less iteration of internal reloc processing) while still fixing the forward reference case. gas/ChangeLog: 2021-05-24 Tamar Christina <tamar.christina@arm.com> PR gas/25235 * config/tc-arm.c (md_convert_frag): Set LSB when Thumb symbol. (relax_adr): Thumb symbols 4 bytes. * testsuite/gas/arm/pr25235.d: New test. * testsuite/gas/arm/pr25235.s: New test. |
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