This patch fixes internal errors in (at least) arm and aarch64 GAS
when assembling code that attempts a negative .org. The bug appears
to be a regression introduced in binutils-2.29 by commit 9875b36538.
* write.c (relax_segment): Fix handling of negative offset when
relaxing an rs_org frag.
* testsuite/gas/aarch64/org-neg.d: New test.
* testsuite/gas/aarch64/org-neg.l: Error output for test.
* testsuite/gas/aarch64/org-neg.s: Input for test.
* testsuite/gas/arm/org-neg.d: New test.
* testsuite/gas/arm/org-neg.l: Error output for test.
* testsuite/gas/arm/org-neg.s: Input for test.
These failures were caused by the PDP11's mix of little-endian octets
in shorts but shorts in big endian order for long or quad so regexps
did not match. Also tests used addresses as values in .long which
required BRD_RELOC_32 that was not implemented.
* gas/config/tc-pdp11.c (md_number_to_chars): Implement .quad
* gas/testsuite/gas/all/gas.exp: Select alternate test scripts for
pdp11, skip octa test completely.
* gas/testsuite/gas/all/eqv-dot-pdp11.s: Identical to eqv-dot.s
* gas/testsuite/gas/all/eqv-dot-pdp11.d: Match different octet order.
* gas/testsuite/gas/all/cond-pdp11.l: Match different octet order.
* bfd/pdp11.c: Implement BRD_RELOC_32 to relocate the low 16 bits of
addreses in .long (used in testsuites) and .stab values.
PR gas/26001
* gas/config/tc-pdp11.c (parse_reg): Distinguish register names from
symbols that begin with a register name.
* gas/testsuite/gas/pdp11/pdp11.exp: Add test of such symbols.
* gas/testsuite/gas/pdp11/pr26001.s: Likewise.
* gas/testsuite/gas/pdp11/pr26001.d: Likewise.
Accept vector alignment hints on z13 although they are ignored there.
The advantage is that any binary compiled for architecture level z13 may
run on z14 or later and benefit from vector alignment hints.
gas/ChangeLog:
2020-05-18 Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
* testsuite/gas/s390/zarch-z13.d: Add regexp checks for vector
load/store instruction variants with alignment hints.
* testsuite/gas/s390/zarch-z13.s: Emit new vector load/store
instruction variants with alignment hints.
opcodes/ChangeLog:
2020-05-18 Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
* s390-opc.txt: Relocate vector load/store instructions with
additional alignment parameter and change architecture level
constraint from z14 to z13.
1. Remove the -mriscv-isa-version and --with-riscv-isa-version options.
We can still use -march to choose the version for each extensions, so there is
no need to add these.
2. Change the arguments of options from [1p9|1p9p1|...] to [1.9|1.9.1|...].
Unlike the architecture string has specified by spec, ther is no need to do
the same thing for options.
3. Spilt the patches to reduce the burdens of review.
[PATCH 3/7] RISC-V: Support new GAS options and configure options to set ISA versions
to
[PATCH v2 3/9] RISC-V: Support GAS option -misa-spec to set ISA versions
[PATCH v2 4/9] RISC-V: Support configure options to set ISA versions by default.
[PATCH 4/7] RISC-V: Support version checking for CSR according to privilege version.
to
[PATCH v2 5/9] RISC-V: Support version checking for CSR according to privilege spec version.
[PATCH v2 6/9] RISC-V: Support configure option to choose the privilege spec version.
4. Use enum class rather than string to compare the choosen ISA spec in opcodes/riscv-opc.c.
The behavior is same as comparing the choosen privilege spec.
include * opcode/riscv.h: Include "bfd.h" to support bfd_boolean.
(enum riscv_isa_spec_class): New enum class. All supported ISA spec
belong to one of the class
(struct riscv_ext_version): New structure holds version information
for the specific ISA.
* opcode/riscv-opc.h (DECLARE_CSR): There are two version information,
define_version and abort_version. The define_version means which
privilege spec is started to define the CSR, and the abort_version
means which privilege spec is started to abort the CSR. If the CSR is
valid for the newest spec, then the abort_version should be
PRIV_SPEC_CLASS_DRAFT.
(DECLARE_CSR_ALIAS): Same as DECLARE_CSR, but only for the obselete CSR.
* opcode/riscv.h (enum riscv_priv_spec_class): New enum class. Define
the current supported privilege spec versions.
(struct riscv_csr_extra): Add new fields to store more information
about the CSR. We use these information to find the suitable CSR
address when user choosing a specific privilege spec.
binutils * dwarf.c: Updated since DECLARE_CSR is changed.
opcodes * riscv-opc.c (riscv_ext_version_table): The table used to store
all information about the supported spec and the corresponding ISA
versions. Currently, only Zicsr is supported to verify the
correctness of Z sub extension settings. Others will be supported
in the future patches.
(struct isa_spec_t, isa_specs): List for all supported ISA spec
classes and the corresponding strings.
(riscv_get_isa_spec_class): New function. Get the corresponding ISA
spec class by giving a ISA spec string.
* riscv-opc.c (struct priv_spec_t): New structure.
(struct priv_spec_t priv_specs): List for all supported privilege spec
classes and the corresponding strings.
(riscv_get_priv_spec_class): New function. Get the corresponding
privilege spec class by giving a spec string.
(riscv_get_priv_spec_name): New function. Get the corresponding
privilege spec string by giving a CSR version class.
* riscv-dis.c: Updated since DECLARE_CSR is changed.
* riscv-dis.c: Add new disassembler option -Mpriv-spec to dump the CSR
according to the chosen version. Build a hash table riscv_csr_hash to
store the valid CSR for the chosen pirv verison. Dump the direct
CSR address rather than it's name if it is invalid.
(parse_riscv_dis_option_without_args): New function. Parse the options
without arguments.
(parse_riscv_dis_option): Call parse_riscv_dis_option_without_args to
parse the options without arguments first, and then handle the options
with arguments. Add the new option -Mpriv-spec, which has argument.
* riscv-dis.c (print_riscv_disassembler_options): Add description
about the new OBJDUMP option.
ld * testsuite/ld-riscv-elf/attr-merge-arch-01.d: Updated
priv attributes according to the -mpriv-spec option.
* testsuite/ld-riscv-elf/attr-merge-arch-02.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-arch-03.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-priv-spec-a.s: Likewise.
* testsuite/ld-riscv-elf/attr-merge-priv-spec-b.s: Likewise.
* testsuite/ld-riscv-elf/attr-merge-priv-spec.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-stack-align.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-strict-align-01.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-strict-align-02.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-strict-align-03.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-strict-align-04.d: Likewise.
* testsuite/ld-riscv-elf/attr-merge-strict-align-05.d: Likewise.
bfd * elfxx-riscv.h (riscv_parse_subset_t): Add new callback function
get_default_version. It is used to find the default version for
the specific extension.
* elfxx-riscv.c (riscv_parsing_subset_version): Remove the parameters
default_major_version and default_minor_version. Add new bfd_boolean
parameter *use_default_version. Set it to TRUE if we need to call
the callback rps->get_default_version to find the default version.
(riscv_parse_std_ext): Call rps->get_default_version if we fail to find
the default version in riscv_parsing_subset_version, and then call
riscv_add_subset to add the subset into subset list.
(riscv_parse_prefixed_ext): Likewise.
(riscv_std_z_ext_strtab): Support Zicsr extensions.
* elfnn-riscv.c (riscv_merge_std_ext): Use strcasecmp to compare the
strings rather than characters.
riscv_merge_arch_attr_info): The callback function get_default_version
is only needed for assembler, so set it to NULL int the linker.
* elfxx-riscv.c (riscv_estimate_digit): Remove the static.
* elfxx-riscv.h: Updated.
gas * testsuite/gas/riscv/priv-reg-fail-read-only-01.s: Updated.
* config/tc-riscv.c (default_arch_with_ext, default_isa_spec):
Static variables which are used to set the ISA extensions. You can
use -march (or ELF build attributes) and -misa-spec to set them,
respectively.
(ext_version_hash): The hash table used to handle the extensions
with versions.
(init_ext_version_hash): Initialize the ext_version_hash according
to riscv_ext_version_table.
(riscv_get_default_ext_version): The callback function of
riscv_parse_subset_t. According to the choosed ISA spec,
get the default version for the specific extension.
(riscv_set_arch): Set the callback function.
(enum options, struct option md_longopts): Add new option -misa-spec.
(md_parse_option): Do not call riscv_set_arch for -march. We will
call it later in riscv_after_parse_args. Call riscv_get_isa_spec_class
to set default_isa_spec class.
(riscv_after_parse_args): Call init_ext_version_hash to initialize the
ext_version_hash, and then call riscv_set_arch to set the architecture
with versions according to default_arch_with_ext.
* testsuite/gas/riscv/attribute-02.d: Set 0p0 as default version for
x extensions.
* testsuite/gas/riscv/attribute-03.d: Likewise.
* testsuite/gas/riscv/attribute-09.d: New testcase. For i-ext, we
already set it's version to 2p1 by march, so no need to use the default
2p2 version. For m-ext, we do not set the version by -march and ELF arch
attribute, so set the default 2p0 to it. For zicsr, it is not defined in
ISA spec 2p2, so set 0p0 to it.
* testsuite/gas/riscv/attribute-10.d: New testcase. The version of
zicsr is 2p0 according to ISA spec 20191213.
* config/tc-riscv.c (DEFAULT_RISCV_ARCH_WITH_EXT)
(DEFAULT_RISCV_ISA_SPEC): Default configure option settings.
You can set them by configure options --with-arch and
--with-isa-spec, respectively.
(riscv_set_default_isa_spec): New function used to set the
default ISA spec.
(md_parse_option): Call riscv_set_default_isa_spec rather than
call riscv_get_isa_spec_class directly.
(riscv_after_parse_args): If the -isa-spec is not set, then we
set the default ISA spec according to DEFAULT_RISCV_ISA_SPEC by
calling riscv_set_default_isa_spec.
* testsuite/gas/riscv/attribute-01.d: Add -misa-spec=2.2, since
the --with-isa-spec may be set to different ISA spec.
* testsuite/gas/riscv/attribute-02.d: Likewise.
* testsuite/gas/riscv/attribute-03.d: Likewise.
* testsuite/gas/riscv/attribute-04.d: Likewise.
* testsuite/gas/riscv/attribute-05.d: Likewise.
* testsuite/gas/riscv/attribute-06.d: Likewise.
* testsuite/gas/riscv/attribute-07.d: Likewise.
* configure.ac: Add configure options, --with-arch and
--with-isa-spec.
* configure: Regenerated.
* config.in: Regenerated.
* config/tc-riscv.c (default_priv_spec): Static variable which is
used to check if the CSR is valid for the chosen privilege spec. You
can use -mpriv-spec to set it.
(enum reg_class): We now get the CSR address from csr_extra_hash rather
than reg_names_hash. Therefore, move RCLASS_CSR behind RCLASS_MAX.
(riscv_init_csr_hashes): Only need to initialize one hash table
csr_extra_hash.
(riscv_csr_class_check): Change the return type to void. Don't check
the ISA dependency if -mcsr-check isn't set.
(riscv_csr_version_check): New function. Check and find the CSR address
from csr_extra_hash, according to default_priv_spec. Report warning
for the invalid CSR if -mcsr-check is set.
(reg_csr_lookup_internal): Updated.
(reg_lookup_internal): Likewise.
(md_begin): Updated since DECLARE_CSR and DECLARE_CSR_ALIAS are changed.
(enum options, struct option md_longopts): Add new GAS option -mpriv-spec.
(md_parse_option): Call riscv_set_default_priv_version to set
default_priv_spec.
(riscv_after_parse_args): If -mpriv-spec isn't set, then set the default
privilege spec to the newest one.
(enum riscv_csr_class, struct riscv_csr_extra): Move them to
include/opcode/riscv.h.
* testsuite/gas/riscv/priv-reg-fail-fext.d: This test case just want
to check the ISA dependency for CSR, so fix the spec version by adding
-mpriv-spec=1.11.
* testsuite/gas/riscv/priv-reg-fail-fext.l: Likewise. There are some
version warnings for the test case.
* gas/testsuite/gas/riscv/priv-reg-fail-read-only-01.d: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-read-only-01.l: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-read-only-02.d: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-rv32-only.d: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-rv32-only.l: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9.d: New test case.
Check whether the CSR is valid when privilege version 1.9 is choosed.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9.l: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9p1.d: New test case.
Check whether the CSR is valid when privilege version 1.9.1 is choosed.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9p1.l: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p10.d: New test case.
Check whether the CSR is valid when privilege version 1.10 is choosed.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p10.l: Likewise.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p11.d: New test case.
Check whether the CSR is valid when privilege version 1.11 is choosed.
* gas/testsuite/gas/riscv/priv-reg-fail-version-1p11.l: Likewise.
* config/tc-riscv.c (DEFAULT_RISCV_ISA_SPEC): Default configure option
setting. You can set it by configure option --with-priv-spec.
(riscv_set_default_priv_spec): New function used to set the default
privilege spec.
(md_parse_option): Call riscv_set_default_priv_spec rather than
call riscv_get_priv_spec_class directly.
(riscv_after_parse_args): If -mpriv-spec isn't set, then we set the
default privilege spec according to DEFAULT_RISCV_PRIV_SPEC by
calling riscv_set_default_priv_spec.
* testsuite/gas/riscv/csr-dw-regnums.d: Add -mpriv-spec=1.11, since
the --with-priv-spec may be set to different privilege spec.
* testsuite/gas/riscv/priv-reg.d: Likewise.
* configure.ac: Add configure option --with-priv-spec.
* configure: Regenerated.
* config.in: Regenerated.
* config/tc-riscv.c (explicit_attr): Rename explicit_arch_attr to
explicit_attr. Set it to TRUE if any ELF attribute is found.
(riscv_set_default_priv_spec): Try to set the default_priv_spec if
the priv attributes are set.
(md_assemble): Set the default_priv_spec according to the priv
attributes when we start to assemble instruction.
(riscv_write_out_attrs): Rename riscv_write_out_arch_attr to
riscv_write_out_attrs. Update the arch and priv attributes. If we
don't set the corresponding ELF attributes, then try to output the
default ones.
(riscv_set_public_attributes): If any ELF attribute or -march-attr
options is set (explicit_attr is TRUE), then call riscv_write_out_attrs
to update the arch and priv attributes.
(s_riscv_attribute): Make sure all arch and priv attributes are set
before any instruction.
* testsuite/gas/riscv/attribute-01.d: Update the priv attributes if any
ELF attribute or -march-attr is set. If the priv attributes are not
set, then try to update them by the default setting (-mpriv-spec or
--with-priv-spec).
* testsuite/gas/riscv/attribute-02.d: Likewise.
* testsuite/gas/riscv/attribute-03.d: Likewise.
* testsuite/gas/riscv/attribute-04.d: Likewise.
* testsuite/gas/riscv/attribute-06.d: Likewise.
* testsuite/gas/riscv/attribute-07.d: Likewise.
* testsuite/gas/riscv/attribute-08.d: Likewise.
* testsuite/gas/riscv/attribute-09.d: Likewise.
* testsuite/gas/riscv/attribute-10.d: Likewise.
* testsuite/gas/riscv/attribute-unknown.d: Likewise.
* testsuite/gas/riscv/attribute-05.d: Likewise. Also, the priv spec
set by priv attributes must be supported.
* testsuite/gas/riscv/attribute-05.s: Likewise.
* testsuite/gas/riscv/priv-reg-fail-version-1p9.d: Likewise. Updated
priv attributes according to the -mpriv-spec option.
* testsuite/gas/riscv/priv-reg-fail-version-1p9p1.d: Likewise.
* testsuite/gas/riscv/priv-reg-fail-version-1p10.d: Likewise.
* testsuite/gas/riscv/priv-reg-fail-version-1p11.d: Likewise.
* testsuite/gas/riscv/priv-reg.d: Removed.
* testsuite/gas/riscv/priv-reg-version-1p9.d: New test case. Dump the
CSR according to the priv spec 1.9.
* testsuite/gas/riscv/priv-reg-version-1p9p1.d: New test case. Dump the
CSR according to the priv spec 1.9.1.
* testsuite/gas/riscv/priv-reg-version-1p10.d: New test case. Dump the
CSR according to the priv spec 1.10.
* testsuite/gas/riscv/priv-reg-version-1p11.d: New test case. Dump the
CSR according to the priv spec 1.11.
* config/tc-riscv.c (md_show_usage): Add descriptions about
the new GAS options.
* doc/c-riscv.texi: Likewise.
This patch fixes a bug in GAS where the assembler enters a tight loop
when attempting to resolve recursively-defined symbols, e.g. when
trying to assemble "a=a".
This is a regression introduced between binutils 2.32 and 2.33,
by commit 1903f1385b
* symbols.c (struct local_symbol): Update comment.
(resolve_symbol_value): For resolved symbols equated to other
symbols, verify that the referenced symbol is not a local_symbol
before accessing sy_value. Don't leave symbol loops during
finalize_syms resolution.
* testsuite/gas/all/assign-bad-recursive.d: New test.
* testsuite/gas/all/assign-bad-recursive.l: Error output for test.
* testsuite/gas/all/assign-bad-recursive.s: Assembly for test.
* testsuite/gas/all/gas.exp: Run it.
opcodes/
* ppc-opc.c (powerpc_opcodes) <brd, brh, brw>: New mnemonics.
gas/
* testsuite/gas/ppc/byte_rev.d,
* testsuite/gas/ppc/byte_rev.s: New test.
* testsuite/gas/ppc/ppc.exp: Run it.
opcodes/
* ppc-opc.c (powerpc_opcodes) <slbiag>: Add variant with L operand.
gas/
* testsuite/gas/ppc/power10.s: New test.
* testsuite/gas/ppc/power10.d: Likewise.
* testsuite/gas/ppc/ppc.exp: Run it.
Now that ISA3.1 is out we can finish with the powerxx silliness.
bfd/
* elf64-ppc.c: Rename powerxx to power10 throughout.
gas/
* config/tc-ppc.c (md_assemble): Update for PPC_OPCODE_POWER10
renaming.
* testsuite/gas/ppc/prefix-align.d: Use -mpower10/-Mpower10 in
place of -mfuture/-Mfuture.
* testsuite/gas/ppc/prefix-pcrel.d: Likewise.
* testsuite/gas/ppc/prefix-reloc.d: Likewise.
gold/
* powerpc.cc: Rename powerxx to power10 throughout.
include/
* elf/ppc64.h: Update comment.
* opcode/ppc.h (PPC_OPCODE_POWER10): Rename from PPC_OPCODE_POWERXX.
ld/
* testsuite/ld-powerpc/callstub-1.d: Use -mpower10/-Mpower10 in
place of -mfuture/-Mfuture.
* testsuite/ld-powerpc/notoc2.d: Likewise.
* testsuite/ld-powerpc/powerpc.exp: Likewise.
* testsuite/ld-powerpc/tlsgd.d: Likewise.
* testsuite/ld-powerpc/tlsie.d: Likewise.
* testsuite/ld-powerpc/tlsld.d: Likewise.
opcodes/
* ppc-dis.c (ppc_opts): Add "power10" entry.
(print_insn_powerpc): Update for PPC_OPCODE_POWER10 renaming.
* ppc-opc.c (POWER10): Rename from POWERXX. Update all uses.
binutils* dwarf.c (do_checks): New global variable.
(display_formatted_table): Warn about an unexpected number of
columns in the table, if checks are enabled. Do not complain
about the lack of data following the number of entries in the
table if the table is empty.
(display_debug_lines_decoded): Only warn about an unexpected
number of columns in a table if checks are enabled.
* dwarf.h (do_checks): Add a prototype.
* elfcomm.c (error): Remove weak attribute.
(warn): Likewise.
* readelf.c (do_checks): Delete.
(warn): Delete.
(process_section_headers): Only warn about empty sections if
checks are enabled.
gas * dwarf2dbg.c (out_dir_and_file_list): Add comments describing the
construction of a DWARF-5 directory name table.
* testsuite/gas/elf/pr25917.d: Update expected output.
This fixes PR 25863 by fixing the condition in the parsing of vmul in
do_mve_vmull. It also simplifies the code in there fixing latent issues that
would lead to NEON code being accepted when it shouldn't.
gas/ChangeLog:
2020-05-04 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR gas/25863
* config/tc-arm.c (do_mve_vmull): Fix scalar and NEON parsing of vmul.
* testsuite/gas/arm/mve-scalar-vmult-it.d: New test.
* testsuite/gas/arm/mve-scalar-vmult-it.s: New test.
PR 25917
* dwarf2dbg.c (out_dir_and_file_list): Check for the directory
table's existence before looking at its entries.
* testsuite/gas/elf/pr25917.s: New test source file.
* testsuite/gas/elf/pr25917.d: New test driver.
* testsuite/gas/elf/elf.exp (run_elf_list_test): Run the new test.
PR 22699
opcodes * sh-opc.h (IMM0_8): Replace with IMM0_8S and IMM0_8U. Use
IMM0_8S for arithmetic insns and IMM0_8U for logical insns.
* sh-dis.c (print_insn_sh): Change IMM0_8 case to IMM0_8S and add
IMM0_8U case.
gas * config/tc-sh.c (build_Mytes): Change operand type IMM0_8 to
IMM0_8S and add support for IMM0_8U.
* testsuite/gas/sh/sh4a.s: Add test of a logical insn using an
unsigned 8-bit immediate.
* testsuite/gas/sh/sh4a.d: Extended expected disassembly.
The 64-bit version of binutils got support for the PE COFF BIG OBJ format a
couple of years ago. The BIG OBJ format is a slightly different COFF format
which extends the size of the number of section field in the header from a
uint16_t to a uint32_t and so greatly increases the number of sections allowed.
However the 32-bit version of bfd never got support for this. The GHC Haskell
compiler generates a great deal of symbols due to it's use of
-ffunction-sections and -fdata-sections.
This meant that we could not build the 32-bit version of the GHC Compiler for
many releases now as binutils didn't have this support.
This patch adds the support to the 32-bit port of binutils as well and also does
come cleanup in the code.
bfd/ChangeLog:
* coff-i386.c (COFF_WITH_PE_BIGOBJ): New.
* coff-x86_64.c (COFF_WITH_PE_BIGOBJ): New.
* config.bfd (targ_selvecs): Rename x86_64_pe_be_vec
to x86_64_pe_big_vec as it not a big-endian format.
(vec i386_pe_big_vec): New.
* configure.ac: Likewise.
* targets.c: Likewise.
* configure: Regenerate.
* pe-i386.c (TARGET_SYM_BIG, TARGET_NAME_BIG,
COFF_WITH_PE_BIGOBJ): New.
* pe-x86_64.c (TARGET_SYM_BIG, TARGET_NAME_BIG):
New.
(x86_64_pe_be_vec): Moved.
gas/ChangeLog:
* NEWS: Add news entry for big-obj.
* config/tc-i386.c (i386_target_format): Support new format.
* doc/c-i386.texi: Add i386 support.
* testsuite/gas/pe/big-obj.d: Rename test to not be x64 specific.
* testsuite/gas/pe/pe.exp (big-obj): Make test run on i386 as well.
ld/ChangeLog:
* pe-dll.c (pe_detail_list): Add pe-bigobj-i386.
Introduce new relaxations XTENSA_PDIFF{8,16,32} for positive differences
(subtracted symbol precedes diminished symbol) and XTENSA_NDIFF{8,16,32}
for negative differences (subtracted symbol follows diminished symbol).
Don't generate XTENSA_DIFF relocations in the assembler, generate
XTENSA_PDIFF or XTENSA_NDIFF based on relative symbol position.
Handle XTENSA_DIFF in BFD for compatibility with old object files.
Handle XTENSA_PDIFF and XTENSA_NDIFF in BFD, treating difference value
as unsigned.
2020-04-22 Max Filippov <jcmvbkbc@gmail.com>
bfd/
* bfd-in2.h: Regenerated.
* elf32-xtensa.c (elf_howto_table): New entries for
R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}.
(elf_xtensa_reloc_type_lookup, elf_xtensa_do_reloc)
(relax_section): Add cases for R_XTENSA_PDIFF{8,16,32} and
R_XTENSA_NDIFF{8,16,32}.
* libbfd.h (bfd_reloc_code_real_names): Add names for
BFD_RELOC_XTENSA_PDIFF{8,16,32} and
BFD_RELOC_XTENSA_NDIFF{8,16,32}.
* reloc.c: Add documentation for BFD_RELOC_XTENSA_PDIFF{8,16,32}
and BFD_RELOC_XTENSA_NDIFF{8,16,32}.
binutils/
* readelf.c (is_none_reloc): Recognize
BFD_RELOC_XTENSA_PDIFF{8,16,32} and
BFD_RELOC_XTENSA_NDIFF{8,16,32}.
gas/
* config/tc-xtensa.c (md_apply_fix): Replace
BFD_RELOC_XTENSA_DIFF{8,16,32} generation with
BFD_RELOC_XTENSA_PDIFF{8,16,32} and
BFD_RELOC_XTENSA_NDIFF{8,16,32} generation.
* testsuite/gas/xtensa/loc.d: Replace BFD_RELOC_XTENSA_DIFF16
with BFD_RELOC_XTENSA_PDIFF16 in the expected output.
include/
* elf/xtensa.h (elf_xtensa_reloc_type): New entries for
R_XTENSA_PDIFF{8,16,32} and R_XTENSA_NDIFF{8,16,32}.
ld/
* testsuite/ld-xtensa/relax-loc.d: New test definition.
* testsuite/ld-xtensa/relax-loc.s: New test source.
* testsuite/ld-xtensa/xtensa.exp (relax-loc): New test.
* config/obj-elf.c (elf_frob_symbol): Unconditionally remove
symbol for ".symver .. remove".
* doc/as.texi (.symver): Update.
* testsuite/gas/symver/symver11.s: Make foo weak.
* testsuite/gas/symver/symver11.d: Expect an error.
* testsuite/gas/symver/symver7.d: Allow other random symbols.
The MC68000/10 decodes the second operand of CMPI strictly as destination
operand, which disallows PC relative addressing, even though the insn
doesn't write to the operand. This restriction has only been lifted for
the MC68020+ and CPU32.
opcodes:
PR 25848
* m68k-opc.c (m68k_opcodes): Allow pc-rel for second operand of
cmpi only on m68020up and cpu32.
gas:
PR 25848
* testsuite/gas/m68k/operands.s: Add tests for cmpi.
* testsuite/gas/m68k/operands.d: Update.
* testsuite/gas/m68k/op68000.d: Update for new error messages.
The check in bfd_get_full_section_contents is trying to check that we don't
allocate more space for a section than the size of the section is on disk.
Previously we excluded linker created sections since they didn't have a size on
disk. However we also need to exclude sections with no content as well such as
the BSS section. Space for these would not have been allocated by the assembler
and so the check would incorrectly fail.
bfd/ChangeLog:
PR binutils/24753
* compress.c (bfd_get_full_section_contents): Exclude sections with no
content.
gas/ChangeLog:
PR binutils/24753
* testsuite/gas/arm/pr24753.d: New test.
* testsuite/gas/arm/pr24753.s: New test.
Extend .symver directive to update visibility of the original symbol and
assign one original symbol to different versioned symbols:
.symver foo, foo@VERS_1, local # Change foo to a local symbol.
.symver foo, foo@VERS_2, hidden # Change foo to a hidden symbol.
.symver foo, foo@@VERS_3, remove # Remove foo from symbol table.
.symver foo, bar@V1 # Assign foo to bar@V1 and baz@V2.
.symver foo, baz@V2
PR gas/23840
PR gas/25295
* NEWS: Mention .symver extension.
* config/obj-elf.c (obj_elf_find_and_add_versioned_name): New
function.
(obj_elf_symver): Call obj_elf_find_and_add_versioned_name to
add a version name. Add local, hidden and remove visibility
support.
(elf_frob_symbol): Handle the list of version names. Update the
original symbol to local, hidden or remove it from the symbol
table.
(elf_frob_file_before_adjust): Handle the list of version names.
* config/obj-elf.h (elf_visibility): New.
(elf_versioned_name_list): Likewise.
(elf_obj_sy): Change local to bitfield. Add rename, bad_version
and visibility. Change versioned_name pointer to struct
elf_versioned_name_list.
* doc/as.texi: Update .symver directive.
* testsuite/gas/symver/symver.exp: Run all *.d tests. Add more
error checking tests.
* testsuite/gas/symver/symver6.d: New file.
* testsuite/gas/symver/symver7.d: Likewise.
* testsuite/gas/symver/symver7.s: Likewise.
* testsuite/gas/symver/symver8.d: Likewise.
* testsuite/gas/symver/symver8.s: Likewise.
* testsuite/gas/symver/symver9.s: Likewise.
* testsuite/gas/symver/symver9a.d: Likewise.
* testsuite/gas/symver/symver9b.d: Likewise.
* testsuite/gas/symver/symver10.s: Likewise.
* testsuite/gas/symver/symver10a.d: Likewise.
* testsuite/gas/symver/symver10b.d: Likewise.
* testsuite/gas/symver/symver11.d: Likewise.
* testsuite/gas/symver/symver11.s: Likewise.
* testsuite/gas/symver/symver12.d: Likewise.
* testsuite/gas/symver/symver12.s: Likewise.
* testsuite/gas/symver/symver13.d: Likewise.
* testsuite/gas/symver/symver13.s: Likewise.
* testsuite/gas/symver/symver14.d: Likewise.
* testsuite/gas/symver/symver14.l: Likewise.
* testsuite/gas/symver/symver15.d: Likewise.
* testsuite/gas/symver/symver15.l: Likewise.
* testsuite/gas/symver/symver6.l: Removed.
* testsuite/gas/symver/symver6.s: Updated.
This patch implements the TSB instructions:
https://developer.arm.com/docs/ddi0596/f/base-instructions-alphabetic-order/
tsb-csync-trace-synchronization-barrier
Since TSB and PSB both use the same (and only) argument "CSYNC", this patch
reuses it for TSB. However, the same argument would imply different value
for CRm:Op2 which are anyway fixed values, so I have diverted the
inserter/extracter function to dummy versions instead of the "hint" version.
The operand checker part still uses the existing infratructure for
AARCH64_OPND_BARRIER_PSB to make sure the operand is parsed correctly.
gas/ChangeLog:
2020-04-20 Sudakshina Das <sudi.das@arm.com>
* config/tc-aarch64.c (parse_barrier_psb): Update error messages
to include TSB.
* testsuite/gas/aarch64/system-2.d: Update -march and new tsb tests.
* testsuite/gas/aarch64/system-2.s: Add new tsb tests.
* testsuite/gas/aarch64/system.d: Update.
opcodes/ChangeLog:
2020-04-20 Sudakshina Das <sudi.das@arm.com>
* aarch64-asm.c (aarch64_ins_none): New.
* aarch64-asm.h (ins_none): New declaration.
* aarch64-dis.c (aarch64_ext_none): New.
* aarch64-dis.h (ext_none): New declaration.
* aarch64-opc.c (aarch64_print_operand): Update case for
AARCH64_OPND_BARRIER_PSB.
* aarch64-tbl.h (aarch64_opcode_table): Add tsb.
(AARCH64_OPERANDS): Update inserter/extracter for
AARCH64_OPND_BARRIER_PSB to use new dummy functions.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
There are a few instruction in AArch64 that are in the HINT space. Any of
these instructions should be accepted by the assembler/disassembler at any
architecture version. This patch fixes the existing instructions that are
not behaving accordingly.
I have used all of the instructions mentioned in the following to make the
changes:
https://developer.arm.com/docs/ddi0596/f/base-instructions-alphabetic-order/
hint-hint-instruction
gas/ChangeLog:
2020-04-20 Sudakshina Das <sudi.das@arm.com>
* testsuite/gas/aarch64/bti.d: Update -march option.
* testsuite/gas/aarch64/illegal-bti.d: Remove.
* testsuite/gas/aarch64/illegal-bti.l: Remove.
* testsuite/gas/aarch64/illegal-ras-1.l: Remove esb.
* testsuite/gas/aarch64/illegal-ras-1.s: Remove esb.
opcodes/ChangeLog:
2020-04-20 Sudakshina Das <sudi.das@arm.com>
* aarch64-tbl.h (aarch64_feature_bti, BTI, BTI_INSN): Remove.
(aarch64_feature_ras, RAS): Likewise.
(aarch64_feature_stat_profile, STAT_PROFILE): Likewise.
(aarch64_opcode_table): Update bti, xpaclri, pacia1716, pacib1716,
autia1716, autib1716, esb, psb, dgh, paciaz, paciasp, pacibz, pacibsp,
autiaz, autiasp, autibz, autibsp to be CORE_INSN.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
PR 25803
gas * config/obj-elf.c (obj_elf_type): Reject ifunc symbols on MIPS
targets.
* testsuite/gas/elf/elf.exp: Add MIPS targets to the list to skip
for the type-2 test.
* testsuite/gas/elf/type-noifunc.e: Update to allow for MIPS
targets running this test.
bfd * elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Replace an
abort with a more helpful error message.
Add support for the JMP32 class of eBPF instructions.
cpu/ChangeLog
* bpf.cpu (define-cond-jump-insn): Renamed from djci.
(dcji) New version with support for JMP32
gas/ChangeLog
* testsuite/gas/bpf/bpf.exp: Run jump32 tests.
* testsuite/gas/bpf/jump32.s: New file.
* testsuite/gas/bpf/jump32.d: Likewise.
opcodes/ChangeLog
* bpf-desc.c: Regenerate.
* bpf-desc.h: Likewise.
* bpf-opc.c: Regenerate.
* bpf-opc.h: Likewise.
A couple of ld ifunc tests currently FAIL on 64-bit Solaris/x86:
FAIL: ld-ifunc/ifunc-10-x86-64
FAIL: ld-ifunc/ifunc-11-x86-64
FAIL: ld-ifunc/ifunc-12-x86-64
FAIL: ld-ifunc/ifunc-13-x86-64
FAIL: ld-ifunc/ifunc-14a-x86-64
FAIL: ld-ifunc/ifunc-14b-x86-64
FAIL: ld-ifunc/ifunc-14c-x86-64
FAIL: ld-ifunc/ifunc-14d-x86-64
FAIL: ld-ifunc/ifunc-14e-x86-64
FAIL: ld-ifunc/ifunc-14f-x86-64
FAIL: ld-ifunc/ifunc-15-x86-64
FAIL: ld-ifunc/ifunc-17a-x86-64
FAIL: ld-ifunc/ifunc-17b-x86-64
FAIL: ld-ifunc/ifunc-2-local-x86-64-now
FAIL: ld-ifunc/ifunc-2-local-x86-64
FAIL: ld-ifunc/ifunc-2-x86-64-now
FAIL: ld-ifunc/ifunc-2-x86-64
FAIL: ld-ifunc/ifunc-20-x86-64
FAIL: ld-ifunc/pr17154-x86-64-now
FAIL: ld-ifunc/pr17154-x86-64
For one, the actual error is weird:
./ld-new: target elf64-x86-64 not found
failed with: <./ld-new: target elf64-x86-64 not found>, no expected output
FAIL: ld-ifunc/ifunc-10-x86-64
although ld -V does report the elf_x86_64 emulation as supported:
$ ./ld/ld-new -V
GNU ld (GNU Binutils) 2.34.50.20200328
Supported emulations:
elf_x86_64_sol2
elf_x86_64
[...]
When using ld -m elf_x86_64_sol2 instead, one of the testcases links
successfully.
However, there's no point in pursuing this: Solaris does not support
ifunc, as can be seen in <sys/elf.h>:
/*
* GNU/Linux specific symbol type not used by Solaris
*/
#define STT_GNU_IFUNC 10
and never will, given that it has symbol capabilities as solution to
effectively the same problem:
http://www.linker-aliens.org/blogs/rie/entry/symbol_capabilitie/
Therefore this patch disables ifunc testing on Solaris completely by
removing Solaris from binutils/testsuite/lib/binutils-common.exp
(supports_gnu_osabi). The ifunc part is justified above. SHF_GNU_MBIND is
in the OS-specific range and conflicts with
#define SHF_SUNW_REALLOC 0x01000000 /* internal: krtld realloc */
While the comment suggests this might be relocatable without too much
problems, the description of mbind (no formal spec AFAICS, just the
comment in the binutils patch submission) strongly suggests that this
isn't relevant to Solaris at all.
Indirectly, clearing supports_gnu_osabi on Solaris disables
supports_gnu_unique. Again, Solaris <sys/elf.h> has
/*
* GNU/Linux specific binding not used by Solaris
*/
#define STB_GNU_UNIQUE 10
so this seems the right thing to do.
Afterwards, one can remove the explicit mentions of *-*-solaris2* in
quite a number of (but not all) the ld-ifunc dump file notarget lists.
There's one fallout, though: two gas tests now XPASS because they are
xfail'ed for !supports_gnu_osabi:
XPASS: mbind sections 12
XPASS: mbind section contents 16
XPASS: mbind sections 16
XPASS: mbind section contents 16
To fix that, I've changed
#xfail: ![supports_gnu_osabi]
to notarget.
Tested on x86_64-pc-solaris2.11, i386-pc-solaris2.11,
x86_64-pc-linux-gnu, and i686-pc-linux-gnu.
ld:
* testsuite/ld-ifunc/ifunc-10-i386.d: Remove *-*-solaris2* from
notarget.
* ifunc-11-i386.d: Likewise.
* ifunc-12-i386.d: Likewise.
* ifunc-13-i386.d: Likewise.
* ifunc-14a-i386.d: Likewise.
* ifunc-14b-i386.d: Likewise.
* ifunc-14c-i386.d: Likewise.
* ifunc-14d-i386.d: Likewise.
* ifunc-14e-i386.d: Likewise.
* ifunc-14f-i386.d: Likewise.
* ifunc-15-i386.d: Likewise.
* ifunc-16-i386-now.d: Likewise.
* ifunc-16-i386.d: Likewise.
* ifunc-17a-i386.d: Likewise.
* ifunc-17b-i386.d: Likewise.
* ifunc-18a-i386.d: Likewise.
* ifunc-18b-i386.d: Likewise.
* ifunc-19a-i386.d: Likewise.
* ifunc-19b-i386.d: Likewise.
* ifunc-2-i386-now.d: Likewise.
* ifunc-2-i386.d: Likewise.
* ifunc-2-local-i386-now.d: Likewise.
* ifunc-2-local-i386.d: Likewise.
* ifunc-20-i386.d: Likewise.
* ifunc-21-i386.d: Likewise.
* ifunc-22-i386.d: Likewise.
* ifunc-5a-i386.d: Likewise.
* ifunc-5a-local-i386.d: Likewise.
* ifunc-5b-i386.d: Likewise.
* ifunc-5b-local-i386.d: Likewise.
* ifunc-5r-local-i386.d: Likewise.
* ifunc-6a-i386.d: Likewise.
* ifunc-6b-i386.d: Likewise.
* ifunc-7a-i386.d: Likewise.
* ifunc-7b-i386.d: Likewise.
* ifunc-8-i386.d: Likewise.
* ifunc-9-i386.d: Likewise.
* pr17154-i386-now.d: Likewise.
* pr17154-i386.d: Likewise.
* ifunc-23a-x86.d: Remove notarget.
* ifunc-24a-x86.d: Likewise.
* ifunc-25a-x86.d: Likewise.
gas:
* testsuite/gas/elf/section12a.d: Use notarget instead of xfail.
* testsuite/gas/elf/section12b.d: Likewise.
* testsuite/gas/elf/section16a.d: Likewise.
* testsuite/gas/elf/section16b.d: Likewise.
binutils:
* testsuite/lib/binutils-common.exp (supports_gnu_osabi): Don't
enable on *-*-solaris*.
Define TC_FORCE_RELOCATION_ABS to force relocation against local
absolute symbol.
PR gas/25756
* config/tc-i386.h (TC_FORCE_RELOCATION_ABS): New.
* testsuite/gas/i386/localpic.s: Add a test for relocation
against local absolute symbol.
* testsuite/gas/i386/x86-64-localpic.s: Likewise.
* testsuite/gas/i386/localpic.d: Updated.
* testsuite/gas/i386/x86-64-localpic.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise.
