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binutils-gdb/ld/testsuite/ld-riscv-elf/attr-merge-arch-failed-01b.s

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RISC-V: Improve the error message for the mis-matched ISA versions. Consider the updated attr-merge-arch-failed-01.d testcase. Extension A's version are mis-matched between attr-merge-arch-failed-01a.s and attr-merge-arch-failed-01b.s. But the old binutils reports that the mis-matched extension is M rather than A. This commit is used to fix the wrong mis-matched error message. Besides, when parsing the arch string in the riscv_parse_subset, it shouldn't be NULL or empty. However, it might be empty when we failed to merge the arch string in the riscv_merge_attributes. Since we should already issue the correct error message in another side, and the message - ISA string must begin with rv32 or rv64 - is meaninglesss when the arch string is empty, so do not issue it. bfd/ * elfnn-riscv.c (riscv_merge_std_ext): Fix to report the correct error message when the versions of extension are mis-matched. * elfxx-riscv.c (riscv_parse_subset): Don't issue the error when the string is empty. ld/ * testsuite/ld-riscv-elf/attr-merge-arch-failed-01.d: Updated. * testsuite/ld-riscv-elf/attr-merge-arch-failed-01a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-failed-01b.s: Likewise.
2020-07-07 10:30:36 +08:00
.attribute arch, "rv32i2p0_m2p0_a3p0"
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