aboutsummaryrefslogtreecommitdiff
path: root/bfd/cpu-riscv.h
AgeCommit message (Collapse)AuthorFilesLines
2023-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The newer update-copyright.py fixes file encoding too, removing cr/lf on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
2022-01-02Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The result of running etc/update-copyright.py --this-year, fixing all the files whose mode is changed by the script, plus a build with --enable-maintainer-mode --enable-cgen-maint=yes, then checking out */po/*.pot which we don't update frequently. The copy of cgen was with commit d1dd5fcc38ead reverted as that commit breaks building of bfp opcodes files.
2021-12-24RISC-V: Hypervisor ext: support Privileged Spec 1.12Vineet Gupta1-0/+1
This is the Hypervisor Extension 1.0 - Hypervisor Memory-Management Instructions HFENCE.VVMA, HFENCE.GVMA, - Hypervisor Virtual Machine Load and Store Instructions HLV.B, HLV.BU, HSV.B, HLV.H, HLV.HU, HLVX.HU, HSB.H, HLV.W, HLV.WU, HLVX.WU, HSV.W, HLV.D, HSV.D - Hypervisor CSRs (some new, some address changed) hstatus, hedeleg, hideleg, hie, hcounteren, hgeie, htval, hip, hvip, htinst, hgeip, henvcfg, henvcfgh, hgatp, hcontext, htimedelta, htimedeltah, vsstatus, vsie, vstvec, vsscratch, vsepc, vscause, vstval, vsip, vsatp, Note that following were added already as part of svinval extension support: HINVAL.GVMA, HINVAL.VVMA Signed-off-by: Vineet Gupta <vineetg@rivosinc.com> Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Nelson Chu <nelson.chu@sifive.com> bfd/ * cpu-riscv.c (riscv_priv_specs): Added entry for 1.12. * cpu-riscv.h (enum riscv_spec_class): Added PRIV_SPEC_CLASS_1P12. gas/ * config/tc-riscv.c (abort_version): Updated comment. (validate_riscv_insn): Annotate switch-break. * testsuite/gas/riscv/h-ext-32.d: New testcase for hypervisor. * testsuite/gas/riscv/h-ext-32.s: Likewise. * testsuite/gas/riscv/h-ext-64.d: Likewise. * testsuite/gas/riscv/h-ext-64.s: Likewise. include/ * opcode/riscv-opc.h: Added encodings for hypervisor csrs and instrcutions. opcodes/ * riscv-opc.c (riscv_opcodes): Added hypervisor instrcutions.
2021-08-30RISC-V: PR27916, Support mapping symbols.Nelson Chu1-0/+3
Similar to ARM/AARCH64, we add mapping symbols in the symbol table, to mark the start addresses of data and instructions. The $d means data, and the $x means instruction. Then the disassembler uses these symbols to decide whether we should dump data or instruction. Consider the mapping-04 test case, $ cat tmp.s .text .option norelax .option norvc .fill 2, 4, 0x1001 .byte 1 .word 0 .balign 8 add a0, a0, a0 .fill 5, 2, 0x2002 add a1, a1, a1 .data .word 0x1 # No need to add mapping symbols. .word 0x2 $ riscv64-unknown-elf-as tmp.s -o tmp.o $ riscv64-unknown-elf-objdump -d tmp.o Disassembly of section .text: 0000000000000000 <.text>: 0: 00001001 .word 0x00001001 # Marked $d, .fill directive. 4: 00001001 .word 0x00001001 8: 00000001 .word 0x00000001 # .byte + part of .word. c: 00 .byte 0x00 # remaining .word. d: 00 .byte 0x00 # Marked $d, odd byte of alignment. e: 0001 nop # Marked $x, nops for alignment. 10: 00a50533 add a0,a0,a0 14: 20022002 .word 0x20022002 # Marked $d, .fill directive. 18: 20022002 .word 0x20022002 1c: 2002 .short 0x2002 1e: 00b585b3 add a1,a1,a1 # Marked $x. 22: 0001 nop # Section tail alignment. 24: 00000013 nop * Use $d and $x to mark the distribution of data and instructions. Alignments of code are recognized as instructions, since we usually fill nops for them. * If the alignment have odd bytes, then we cannot just fill the nops into the spaces. We always fill an odd byte 0x00 at the start of the spaces. Therefore, add a $d mapping symbol for the odd byte, to tell disassembler that it isn't an instruction. The behavior is same as Arm and Aarch64. The elf/linux toolchain regressions all passed. Besides, I also disable the mapping symbols internally, but use the new objudmp, the regressions passed, too. Therefore, the new objudmp should dump the objects corretly, even if they don't have any mapping symbols. bfd/ pr 27916 * cpu-riscv.c (riscv_elf_is_mapping_symbols): Define mapping symbols. * cpu-riscv.h: extern riscv_elf_is_mapping_symbols. * elfnn-riscv.c (riscv_maybe_function_sym): Do not choose mapping symbols as a function name. (riscv_elf_is_target_special_symbol): Add mapping symbols. binutils/ pr 27916 * testsuite/binutils-all/readelf.s: Updated. * testsuite/binutils-all/readelf.s-64: Likewise. * testsuite/binutils-all/readelf.s-64-unused: Likewise. * testsuite/binutils-all/readelf.ss: Likewise. * testsuite/binutils-all/readelf.ss-64: Likewise. * testsuite/binutils-all/readelf.ss-64-unused: Likewise. gas/ pr 27916 * config/tc-riscv.c (make_mapping_symbol): Create a new mapping symbol. (riscv_mapping_state): Decide whether to create mapping symbol for frag_now. Only add the mapping symbols to text sections. (riscv_add_odd_padding_symbol): Add the mapping symbols for the riscv_handle_align, which have odd bytes spaces. (riscv_check_mapping_symbols): Remove any excess mapping symbols. (md_assemble): Marked as MAP_INSN. (riscv_frag_align_code): Marked as MAP_INSN. (riscv_init_frag): Add mapping symbols for frag, it usually called by frag_var. Marked as MAP_DATA for rs_align and rs_fill, and marked as MAP_INSN for rs_align_code. (s_riscv_insn): Marked as MAP_INSN. (riscv_adjust_symtab): Call riscv_check_mapping_symbols. * config/tc-riscv.h (md_cons_align): Defined to riscv_mapping_state with MAP_DATA. (TC_SEGMENT_INFO_TYPE): Record mapping state for each segment. (TC_FRAG_TYPE): Record the first and last mapping symbols for the fragments. The first mapping symbol must be placed at the start of the fragment. (TC_FRAG_INIT): Defined to riscv_init_frag. * testsuite/gas/riscv/mapping-01.s: New testcase. * testsuite/gas/riscv/mapping-01a.d: Likewise. * testsuite/gas/riscv/mapping-01b.d: Likewise. * testsuite/gas/riscv/mapping-02.s: Likewise. * testsuite/gas/riscv/mapping-02a.d: Likewise. * testsuite/gas/riscv/mapping-02b.d: Likewise. * testsuite/gas/riscv/mapping-03.s: Likewise. * testsuite/gas/riscv/mapping-03a.d: Likewise. * testsuite/gas/riscv/mapping-03b.d: Likewise. * testsuite/gas/riscv/mapping-04.s: Likewise. * testsuite/gas/riscv/mapping-04a.d: Likewise. * testsuite/gas/riscv/mapping-04b.d: Likewise. * testsuite/gas/riscv/mapping-norelax-04a.d: Likewise. * testsuite/gas/riscv/mapping-norelax-04b.d: Likewise. * testsuite/gas/riscv/no-relax-align.d: Updated. * testsuite/gas/riscv/no-relax-align-2.d: Likewise. include/ pr 27916 * opcode/riscv.h (enum riscv_seg_mstate): Added. opcodes/ pr 27916 * riscv-dis.c (last_map_symbol, last_stop_offset, last_map_state): Added to dump sections with mapping symbols. (riscv_get_map_state): Get the mapping state from the symbol. (riscv_search_mapping_symbol): Check the sorted symbol table, and then find the suitable mapping symbol. (riscv_data_length): Decide which data size we should print. (riscv_disassemble_data): Dump the data contents. (print_insn_riscv): Handle the mapping symbols. (riscv_symbol_is_valid): Marked mapping symbols as invalid.
2021-02-18RISC-V: Add bfd/cpu-riscv.h to support all spec versions controlling.Nelson Chu1-0/+81
Make the opcode/riscv-opc.c and include/opcode/riscv.h tidy, move the spec versions stuff to bfd/cpu-riscv.h. Also move the csr stuff and ext_version_table to gas/config/tc-riscv.c for internal use. To avoid too many repeated code, define general RISCV_GET_SPEC_NAME/SPEC_CLASS macros. Therefore, assembler/dis-assembler/linker/gdb can get all spec versions related stuff from cpu-riscv.h and cpu-riscv.c, since the stuff are defined there uniformly. bfd/ * Makefile.am: Added cpu-riscv.h. * Makefile.in: Regenerated. * po/SRC-POTFILES.in: Regenerated. * cpu-riscv.h: Added to support spec versions controlling. Also added extern arrays and functions for cpu-riscv.c. (enum riscv_spec_class): Define all spec classes here uniformly. (struct riscv_spec): Added for all specs. (RISCV_GET_SPEC_CLASS): Added to reduce repeated code. (RISCV_GET_SPEC_NAME): Likewise. (RISCV_GET_ISA_SPEC_CLASS): Added to get ISA spec class. (RISCV_GET_PRIV_SPEC_CLASS): Added to get privileged spec class. (RISCV_GET_PRIV_SPEC_NAME): Added to get privileged spec name. * cpu-riscv.c (struct priv_spec_t): Replaced with struct riscv_spec. (riscv_get_priv_spec_class): Replaced with RISCV_GET_PRIV_SPEC_CLASS. (riscv_get_priv_spec_name): Replaced with RISCV_GET_PRIV_SPEC_NAME. (riscv_priv_specs): Moved below. (riscv_get_priv_spec_class_from_numbers): Likewise, updated. (riscv_isa_specs): Moved from include/opcode/riscv.h. * elfnn-riscv.c: Included cpu-riscv.h. (riscv_merge_attributes): Initialize in_priv_spec and out_priv_spec. * elfxx-riscv.c: Included cpu-riscv.h and opcode/riscv.h. (RISCV_UNKNOWN_VERSION): Moved from include/opcode/riscv.h. * elfxx-riscv.h: Removed extern functions to cpu-riscv.h. gas/ * config/tc-riscv.c: Included cpu-riscv.h. (enum riscv_csr_clas): Moved from include/opcode/riscv.h. (struct riscv_csr_extra): Likewise. (struct riscv_ext_version): Likewise. (ext_version_table): Moved from opcodes/riscv-opc.c. (default_isa_spec): Updated type to riscv_spec_class. (default_priv_spec): Likewise. (riscv_set_default_isa_spec): Updated. (init_ext_version_hash): Likewise. (riscv_init_csr_hash): Likewise, also fixed indent. include/ * opcode/riscv.h: Moved stuff and make the file tidy. opcodes/ * riscv-dis.c: Included cpu-riscv.h, and removed elfxx-riscv.h. (default_priv_spec): Updated type to riscv_spec_class. (parse_riscv_dis_option): Updated. * riscv-opc.c: Moved stuff and make the file tidy.