According to the picture 28.1 in the current ISA spec, h is no larger the
multi-letter extension, it is a single extension after v. Therefore, this
patch fix the implementation, and use the single h to control hypervisor
CSRs and instructions, which we promised to do before.
bfd/
* elfxx-riscv.c (riscv_supported_std_ext): Added h with version 1.0 after v.
(riscv_supported_std_h_ext): Removed.
(riscv_all_supported_ext): Updated since riscv_supported_std_h_ext is removed.
(riscv_prefix_ext_class): Removed RV_ISA_CLASS_H.
(parse_config): Updated since riscv_prefix_ext_class is removed.
(riscv_recognized_prefixed_ext): Likewise.
(riscv_get_default_ext_version): Likewise.
(riscv_multi_subset_supports): Handle INSN_CLASS_H for hypervisor instructions.
(riscv_multi_subset_supports_ext): Likewise.
gas/
* config/tc-riscv.c (riscv_csr_class): Added CSR_CLASS_H and CSR_CLASS_H_32 for
hypervisor CSRs.
(riscv_csr_address): Likewise.
* testsuite/gas/riscv/csr-version-1p10.d: Updated since hypervisor CSRs are
controlled by single h extension for now.
* testsuite/gas/riscv/csr-version-1p10.l: Likewise.
* testsuite/gas/riscv/csr-version-1p11.d: Likewise.
* testsuite/gas/riscv/csr-version-1p11.l: Likewise.
* testsuite/gas/riscv/csr-version-1p12.d: Likewise.
* testsuite/gas/riscv/csr-version-1p12.l: Likewise.
* testsuite/gas/riscv/csr-version-1p9p1.d: Likewise.
* testsuite/gas/riscv/csr-version-1p9p1.l: Likewise.
* testsuite/gas/riscv/h-ext-32.d: Added h to architecture string.
* testsuite/gas/riscv/h-ext-64.d: Likewise.
* testsuite/gas/riscv/march-fail-single-prefix-h: Removed since h is no
longer multi-letter extension.
* testsuite/gas/riscv/march-fail-unknown-h.d: Likewise.
include/
* opcode/riscv-opc.h: Control hypervisor CSRs by h extension, rather than
the privileged spec verisons.
* opcode/riscv.h (riscv_insn_class): Added INSN_CLASS_H.
opcodes/
* riscv-opc.c (riscv_opcodes): Control hypervisor instructions by h extension.
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