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This commit adds the AIA extensions (Smaia and Ssaia) CSRs.
bfd/ChangeLog:
* elfxx-riscv.c: Add 'smaia' and 'ssaia' to the list
of known standard extensions.
gas/ChangeLog:
* config/tc-riscv.c (enum riscv_csr_class):
(riscv_csr_address): Add CSR classes for Smaia/Ssaia.
* testsuite/gas/riscv/csr-dw-regnums.d: Add new CSRs.
* testsuite/gas/riscv/csr-dw-regnums.s: Likewise.
* testsuite/gas/riscv/csr-version-1p10.d: Likewise.
* 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/csr.s: Likewise.
include/ChangeLog:
* opcode/riscv-opc.h (CSR_MISELECT): New CSR macro.
(CSR_MIREG): Likewise.
(CSR_MTOPEI): Likewise.
(CSR_MTOPI): Likewise.
(CSR_MVIEN): Likewise.
(CSR_MVIP): Likewise.
(CSR_MIDELEGH): Likewise.
(CSR_MIEH): Likewise.
(CSR_MVIENH): Likewise.
(CSR_MVIPH): Likewise.
(CSR_MIPH): Likewise.
(CSR_SISELECT): Likewise.
(CSR_SIREG): Likewise.
(CSR_STOPEI): Likewise.
(CSR_STOPI): Likewise.
(CSR_SIEH): Likewise.
(CSR_SIPH): Likewise.
(CSR_HVIEN): Likewise.
(CSR_HVICTL): Likewise.
(CSR_HVIPRIO1): Likewise.
(CSR_HVIPRIO2): Likewise.
(CSR_VSISELECT): Likewise.
(CSR_VSIREG): Likewise.
(CSR_VSTOPEI): Likewise.
(CSR_VSTOPI): Likewise.
(CSR_HIDELEGH): Likewise.
(CSR_HVIENH): Likewise.
(CSR_HVIPH): Likewise.
(CSR_HVIPRIO1H): Likewise.
(CSR_HVIPRIO2H): Likewise.
(CSR_VSIEH): Likewise.
(CSR_VSIPH): Likewise.
(DECLARE_CSR): Add CSRs for Smaia and Ssaia.
Changes for v3:
- Imply ssaia for smaia
- Imply zicsr for ssaia (and transitively smaia)
- Move hypervisor CSRs to Ssaia+H
- Rebase on upstream/master
Changes for v2:
- Add hypervisor and VS CSRs
- Fix whitespace issue
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
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This extends the commit 4581a1c7d304 fix to more targets, which
hardens BFD a little. I think the real underlying problem was the
bfd_canonicalize_reloc call in load_specific_debug_section which
passed a NULL for "symbols". Fix that too.
PR 22509
bfd/
* aoutx.h (swap_ext_reloc_out): Gracefully handle NULL symbols.
* i386lynx.c (swap_ext_reloc_out): Likewise.
* pdp11.c (pdp11_aout_swap_reloc_out): Likewise.
* coff-tic30.c (reloc_processing): Likewise.
* coff-tic4x.c (tic4x_reloc_processing): Likewise.
* coff-tic54x.c (tic54x_reloc_processing): Likewise.
* coff-z80.c (reloc_processing): Likewise.
* coff-z8k.c (reloc_processing): Likewise.
* ecoff.c (ecoff_slurp_reloc_table): Likewise.
* som.c (som_set_reloc_info): Likewise.
binutils/
* objdump.c (load_specific_debug_section): Pass syms to
bfd_canonicalize_reloc.
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If tdata->symbols is NULL, make tdata->symcount zero too. This makes
wasm_get_symtab_upper_bound return the proper result and stops
cascading errors.
* wasm-module.c (wasm_scan_name_function_section): Clear
tdata->symcount on error.
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According to the riscv psabi, R_RISCV_SUB6 only allows 6 least significant
bits are valid, but since binutils implementation, we usually get 8 bits
field for it. That means, the high 2 bits could be other field and have
different purpose. Therefore, we should filter the 8 bits to 6 bits before
calculate, and then only encode the valid 6 bits back. By the way, we also
need the out-of-range check for R_RISCV_SUB6, and the overflow checks for
all R_RISCV_ADD/SUB/SET relocations, but we can add them in the future patches.
Passing riscv-gnu-toolchain regressions.
bfd/ChangeLog:
* elfnn-riscv.c (riscv_elf_relocate_section): Take the R_RISCV_SUB6
lower 6 bits as the significant bit.
* elfxx-riscv.c (riscv_elf_add_sub_reloc): Likewise.
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bfd/
PR ld/29820
* elfxx-x86.c (_bfd_x86_elf_always_size_sections): Don't define
_TLS_MODULE_BASE_ for ld -r.
ld/
PR ld/29820
* testsuite/ld-x86-64/pr29820.d: New file.
* testsuite/ld-x86-64/pr29820.s: Likewise.
* testsuite/ld-x86-64/x86-64.ex: Run pr29820.
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PR 29807
* cofflink.c (_bfd_coff_generic_relocate_section): Skip relocs
against symbols with a NULL section.
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Remove this code dating back to commit 98790d3a95fc entirely, what it
was trying to do is done elsewhere.
PR ld/29761
* elflink.c (elf_link_output_symstrtab): Don't handle symbols
in SEC_EXCLUDE sections here.
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PR 29764
gas * testsuite/gas/arm/cpu-cortex-a76ae.d: Add arm prefix to the -m
option passed to objdump.
* testsuite/gas/arm/cpu-cortex-a77.d: Likewise.
* testsuite/gas/aarch64/cpu-cortex-a76ae.d: Add aarch64 prefix to
the -m option passed to objdump.
* testsuite/gas/aarch64/cpu-cortex-a77.d: Likewise.
bfd * cpu-arm.c (scan): Accept machine names prefixed with "arm:".
* cpu-aarch64.c (scan): Accept machine names prefixed with "aarch64:".
bin * doc/binutils.texi (objdump): Note that the -m option supports
the <architecture>:<machine> syntax.
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This commit adds 'Ssstateen' extension, which is a supervisor-visible view
of the 'Smstateen' extension. It means, this extension implements sstateen*
and hstateen* CSRs of the 'Smstateen' extension.
Note that 'Smstateen' extension itself is unchanged but due to
implementation simplicity, it is implemented so that 'Smstateen' implies
'Ssstateen' (just like 'M' implies 'Zmmul').
This is based on the latest version of RISC-V Profiles
(version 0.9-draft, Frozen):
<https://github.com/riscv/riscv-profiles/commit/226b7f643067b29abc6723fac60d5f6d3f9eb901>
bfd/ChangeLog:
* elfxx-riscv.c (riscv_implicit_subsets): Update implication rules.
(riscv_supported_std_s_ext) Add 'Ssstateen' extension.
gas/ChangeLog:
* config/tc-riscv.c (enum riscv_csr_class): Rename
CSR_CLASS_SMSTATEEN_AND_H{,_32} to CSR_CLASS_SSSTATEEN_...
Add CSR_CLASS_SSSTATEEN.
(riscv_csr_address): Support new/renamed CSR classes.
* testsuite/gas/riscv/csr.s: Add 'Ssstateen' extension to comment.
* testsuite/gas/riscv/csr-version-1p9p1.l: Reflect changes to
error messages.
* testsuite/gas/riscv/csr-version-1p10.l: Likewise.
* testsuite/gas/riscv/csr-version-1p11.l: Likewise.
* testsuite/gas/riscv/csr-version-1p12.l: Likewise.
* testsuite/gas/riscv/ssstateen-csr.s: Test for 'Ssstateen' CSRs.
* testsuite/gas/riscv/ssstateen-csr.d: Likewise.
* testsuite/gas/riscv/smstateen-csr-s.d: Test to make sure that
supervisor/hypervisor part of 'Smstateen' CSRs are accessible from
'RV32IH_Smstateen', not just from 'RV32IH_Ssstateen' that is tested
in ssstateen-csr.d.
include/ChangeLog:
* opcode/riscv-opc.h: Update DECLARE_CSR declarations with
new CSR classes.
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* coff-stgo32 (go32exe_check_format): Sanity check stubsize against
filesize before malloc.
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Always call elf_backend_output_arch_local_syms since only the backend
knows if elf_backend_output_arch_local_syms is needed when all symbols
are striped. elf_backend_output_arch_local_syms is defined only for
x86, ARM and AARCH64. On x86, elf_backend_output_arch_local_syms must
be called to handle local IFUNC symbols even if all symbols are striped.
Update ARM and AARCH64 to skip elf_backend_output_arch_local_syms when
symbols aren't needed.
bfd/
PR ld/29797
* elf32-arm.c (elf32_arm_output_arch_local_syms): Skip if symbols
aren't needed.
* elfnn-aarch64.c (elfNN_aarch64_output_arch_local_syms):
Likewise.
* elflink.c (bfd_elf_final_link): Always call
elf_backend_output_arch_local_syms if available.
ld/
PR ld/29797
* testsuite/ld-elf/linux-x86.exp: Run PR ld/29797 test.
* testsuite/ld-elf/pr29797.c: New file.
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This patch adds the XTheadInt extension, which provides interrupt
stack management instructions.
The XTheadFmv extension is documented in the RISC-V toolchain
contentions:
https://github.com/riscv-non-isa/riscv-toolchain-conventions
Co-developed-by: Lifang Xia <lifang_xia@linux.alibaba.com>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
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This patch adds the XTheadFmv extension, which allows to access the
upper 32 bits of a double-precision floating-point register in RV32.
The XTheadFmv extension is documented in the RISC-V toolchain
contentions:
https://github.com/riscv-non-isa/riscv-toolchain-conventions
Co-developed-by: Lifang Xia <lifang_xia@linux.alibaba.com>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
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The linker merges all the input .sframe sections. When merging, the
linker verifies that all the input .sframe sections have the same
abi/arch.
The linker uses libsframe library to perform key actions on the
.sframe sections - decode, read, and create output data. This
implies buildsystem changes to make and install libsframe before
libbfd.
The linker places the output .sframe section in a new segment of its
own: PT_GNU_SFRAME. A new segment is not added, however, if the
generated .sframe section is empty.
When a section is discarded from the final link, the corresponding
entries in the .sframe section for those functions are also deleted.
The linker sorts the SFrame FDEs on start address by default and sets
the SFRAME_F_FDE_SORTED flag in the .sframe section.
This patch also adds support for generation of SFrame unwind
information for the .plt* sections on x86_64. SFrame unwind info is
generated for IBT enabled PLT, lazy/non-lazy PLT.
The existing linker option --no-ld-generated-unwind-info has been
adapted to include the control of whether .sframe unwind information
will be generated for the linker generated sections like PLT.
Changes to the linker script have been made as necessary.
ChangeLog:
* Makefile.def: Add install dependency on libsframe for libbfd.
* Makefile.in: Regenerated.
* bfd/Makefile.am: Add elf-sframe.c
* bfd/Makefile.in: Regenerated.
* bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated.
* bfd/configure: Regenerate.
* bfd/configure.ac: Add elf-sframe.lo.
* bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct.
(struct sframe_dec_info): Likewise.
(struct sframe_enc_info): Likewise.
(struct elf_link_hash_table): New member for encoded .sframe
object.
(struct output_elf_obj_tdata): New member.
(elf_sframe): New access macro.
(_bfd_elf_set_section_sframe): New declaration.
* bfd/elf.c (get_segment_type): Handle new segment
PT_GNU_SFRAME.
(bfd_section_from_phdr): Likewise.
(get_program_header_size): Likewise.
(_bfd_elf_map_sections_to_segments): Likewise.
* bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add
contents to the .sframe sections or .plt* entries.
* bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle
SEC_INFO_TYPE_SFRAME.
(_bfd_elf_default_action_discarded): Handle .sframe section.
(elf_link_input_bfd): Merge .sframe section.
(bfd_elf_final_link): Write the output .sframe section.
(bfd_elf_discard_info): Handle discarding .sframe section.
* bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create
.sframe section for .plt and .plt.sec.
(_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from
.plt* sections.
* bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New
definition.
(SFRAME_PLT0_MAX_NUM_FRES): Likewise.
(SFRAME_PLTN_MAX_NUM_FRES): Likewise.
(struct elf_x86_sframe_plt): New structure.
(struct elf_x86_link_hash_table): New member.
(struct elf_x86_init_table): New members for .sframe
creation.
* bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME.
* binutils/readelf.c (get_segment_type): Handle new segment
PT_GNU_SFRAME.
* ld/ld.texi: Update documentation for
--no-ld-generated-unwind-info.
* ld/scripttempl/elf.sc: Support .sframe sections.
* ld/Makefile.am (TESTSFRAMELIB): Use it.
(check-DEJAGNU): Likewise.
* ld/Makefile.in: Regenerated.
* ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB.
* ld/configure: Regenerated.
* bfd/elf-sframe.c: New file.
include/ChangeLog:
* elf/common.h (PT_GNU_SFRAME): New definition.
* elf/internal.h (struct elf_segment_map): Handle new segment
type PT_GNU_SFRAME.
ld/testsuite/ChangeLog:
* ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB.
* ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test
sframe-simple-1.
* ld/testsuite/ld-aarch64/sframe-bar.s: New file.
* ld/testsuite/ld-aarch64/sframe-foo.s: Likewise.
* ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-sframe/sframe-empty.d: New test.
* ld/testsuite/ld-sframe/sframe-empty.s: New file.
* ld/testsuite/ld-sframe/sframe.exp: New testsuite.
* ld/testsuite/ld-x86-64/sframe-bar.s: New file.
* ld/testsuite/ld-x86-64/sframe-foo.s: Likewise.
* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise.
* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-x86-64/x86-64.exp: Add new tests -
sframe-simple-1, sframe-plt-1.
* ld/testsuite/lib/ld-lib.exp: Add new proc to check if
assembler supports SFrame section.
* ld/testsuite/ld-sframe/discard.d: New file.
* ld/testsuite/ld-sframe/discard.ld: Likewise.
* ld/testsuite/ld-sframe/discard.s: Likewise.
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Data and instruction memories are strictly separated, so it is not
possible to execute instructions from the stack memory on PRU.
I don't see any difference in testsuite results with or without this
change.
bfd/ChangeLog:
* elf32-pru.c (elf_backend_default_execstack): Define as 0.
ld/ChangeLog:
* testsuite/ld-elf/elf.exp (target_defaults_to_execstack):
Return 0 for pru.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
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This patch adds support for Cortex-X1C CPU in Arm.
bfd/ChangeLog:
2022-11-09 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* cpu-arm.c (processors): Add Cortex-X1C CPU entry.
gas/ChangeLog:
2022-11-09 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* NEWS: Update docs.
* config/tc-arm.c (arm_cpus): Add cortex-x1c to -mcpu.
* doc/c-arm.texi: Update docs.
* testsuite/gas/arm/cpu-cortex-x1c.d: New test.
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This tidies SEC_RELOC handling in bfd, in the process fixing a bug
with objcopy when renaming sections.
bfd/
* reloc.c (_bfd_generic_set_reloc): Set/clear SEC_RELOC depending
on reloc count.
* elf64-sparc.c (elf64_sparc_set_reloc): Likewise.
binutils/
* objcopy.c (copy_relocations_in_section): Remove now unnecessary
clearing of SEC_RELOC.
* testsuite/binutils-all/rename-section-01.d: New test.
* testsuite/binutils-all/objcopy.exp: Run it.
gas/
* write.c (size_seg): Remove unneccesary twiddle of SEC_RELOC.
(write_relocs): Likewise. Always call bfd_set_reloc.
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This patch provides a new function to sanity check section sizes.
It's mostly extracted from what we had in bfd_get_full_section_contents
but also handles compressed debug sections.
Improvements are:
- section file offset is taken into account,
- added checks that a compressed section can be read from file.
The function is then used when handling multiple .debug_* sections
that need to be read into a single buffer, to sanity check sizes
before allocating the buffer.
PR 26946, PR 28834
* Makefile.am (LIBBFD_H_FILES): Add section.c.
* compress.c (bfd_get_full_section_contents): Move section size
sanity checks..
* section.c (_bfd_section_size_insane): ..to here. New function.
* dwarf2.c (read_section): Use _bfd_section_size_insane.
(_bfd_dwarf2_slurp_debug_info): Likewise.
* Makefile.in: Regenerate.
* libbfd.h: Regenerate.
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* elfxx-mips.c (_bfd_mips_elf_section_from_shdr): Use
bfd_malloc_and_get_section to read contents of .MIPS.options.
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* mach-o.c (bfd_mach_o_canonicalize_reloc): Set bfd_error on
multiply overflow.
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The idea here is the stop tools from allocating up to 32G per section
for the arelent pointer array, only to find a little later that the
section reloc count was fuzzed. This usually doesn't hurt much (on
systems that allow malloc overcommit) except when compiled with asan.
We already do this for ELF targets, and while fixing the logic
recently I decided other targets ought to do the same.
* elf64-sparc.c (elf64_sparc_get_reloc_upper_bound): Sanity check
section reloc count against file size.
* mach-o.c (bfd_mach_o_get_reloc_upper_bound): Likewise.
* aoutx.h (get_reloc_upper_bound): Likewise, and don't duplicate
check done in bfd_get_reloc_upper_bound.
* pdp11.c (get_reloc_upper_bound): Likewise.
* coffgen.c (coff_get_reloc_upper_bound): Likewise.
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PR ld/29761
* elflink.c (elf_link_output_symstrtab): Don't skip local symbol
in SEC_EXCLUDE section for relocatable link.
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gas uses ZSTD_compressStream2 which is only available with libzstd >=
1.4.0, leading to build errors when an older version is installed.
This patch updates the check libzstd presence to check its version is
>= 1.4.0. However, since gas seems to be the only component requiring
such a recent version this may imply that we disable ZSTD support for
all components although some would still benefit from an older
version.
I ran 'autoreconf -f' in all directories containing a configure.ac
file, using vanilla autoconf-2.69 and automake-1.15.1. I noticed
several errors from autoheader in readline, as well as warnings in
intl, but they are unrelated to this patch.
This should fix some of the buildbots.
OK for trunk?
Thanks,
Christophe
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Despite that the RISC-V ISA Manual version 2.2 prohibited "RV32EF", later
versions beginning with the version 20190608-Base-Ratified removed this
restriction. Because the 'E' extension is still a draft, the author chose
to *just* remove the conflict (not checking the ISA version).
Note that, because RV32E is only used with a soft-float calling convention,
there's no valid official ABI for RV32EF. It means, even if we can assemble
a program with -march=rv32ef -mabi=ilp32e, floating-point registers are kept
in an unmanaged state (outside ABI management).
The purpose of this commit is to suppress unnecessary errors while parsing
an ISA string and/or disassembling, not to allow hard-float with RVE.
bfd/ChangeLog:
* elfxx-riscv.c (riscv_parse_check_conflicts): Accept RV32EF
because only older specifications disallowed it.
gas/ChangeLog:
* testsuite/gas/riscv/march-fail-rv32ef.d: Remove as not directly
prohibited.
* testsuite/gas/riscv/march-fail-rv32ef.l: Likewise.
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This patch is based on MULTIPLE_FRAME_SECTIONS and EH_FRAME_LINKONCE,
it allows backend to enable this feature and use '--gc-sections' simply.
* gas/dw2gencfi.h (TARGET_MULTIPLE_EH_FRAME_SECTIONS): New.
(MULTIPLE_FRAME_SECTIONS): Add TARGET_MULTIPLE_EH_FRAME_SECTIONS.
* gas/dw2gencfi.c (EH_FRAME_LINKONCE): Add TARGET_MULTIPLE_EH_FRAME_SECTIONS.
(is_now_linkonce_segment): Likewise.
(get_cfi_seg): Create relocation info between .eh_frame.* and .text.* section.
* bfd/elf-bfd.h (elf_backend_can_make_multiple_eh_frame): New.
* bfd/elfxx-target.h (elf_backend_can_make_multiple_eh_frame): Likewise.
* bfd/elflink.c (_bfd_elf_default_action_discarded): Add checking for
elf_backend_can_make_multiple_eh_frame.
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