88 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Simon Marchi
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940da03e32 |
gdb: remove TYPE_FIELD_TYPE macro
Remove the `TYPE_FIELD_TYPE` macro, changing all the call sites to use `type::field` and `field::type` directly. gdb/ChangeLog: * gdbtypes.h (TYPE_FIELD_TYPE): Remove. Change all call sites to use type::field and field::type instead. Change-Id: Ifda6226a25c811cfd334a756a9fbc5c0afdddff3 |
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Simon Marchi
|
1f704f761b |
gdb: remove TYPE_NFIELDS macro
Remove `TYPE_NFIELDS`, changing all the call sites to use `type::num_fields` directly. This is quite a big diff, but this was mostly done using sed and coccinelle. A few call sites were done by hand. gdb/ChangeLog: * gdbtypes.h (TYPE_NFIELDS): Remove. Change all cal sites to use type::num_fields instead. Change-Id: Ib73be4c36f9e770e0f729bac3b5257d7cb2f9591 |
|
Nelson Chu
|
8f595e9b4f |
[PATCH v2 0/9] RISC-V: Support version controling for ISA standard extensions and CSR
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.
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Simon Marchi
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7d93a1e0b6 |
gdb: remove TYPE_NAME macro
Remove `TYPE_NAME`, changing all the call sites to use `type::name` directly. This is quite a big diff, but this was mostly done using sed and coccinelle. A few call sites were done by hand. gdb/ChangeLog: * gdbtypes.h (TYPE_NAME): Remove. Change all cal sites to use type::name instead. |
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Simon Marchi
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d0e39ea27c |
gdb: add type::name / type::set_name
Add the `name` and `set_name` methods on `struct type`, in order to remove the `TYPE_NAME` macro. In this patch, the `TYPE_NAME` macro is changed to use `type::name`, so all the call sites that are used to set the type name are changed to use `type::set_name`. The next patch will remove `TYPE_NAME` completely. gdb/ChangeLog: * gdbtypes.h (struct type) <name, set_name>: New methods. (TYPE_CODE): Use type::name. Change all call sites used to set the name to use type::set_name instead. |
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Simon Marchi
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7813437494 |
gdb: remove TYPE_CODE macro
Remove TYPE_CODE, changing all the call sites to use type::code directly. This is quite a big diff, but this was mostly done using sed and coccinelle. A few call sites were done by hand. gdb/ChangeLog: * gdbtypes.h (TYPE_CODE): Remove. Change all call sites to use type::code instead. |
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Tom Tromey
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0743fc83c0 |
Replace most calls to help_list and cmd_show_list
Currently there are many prefix commands that do nothing but call either help_list or cmd_show_list. I happened to notice that one such call, for "set print type", used the wrong command list parameter, causing incorrect output. Rather than fix this bug in isolation, I decided to eliminate this possibility by adding two new ways to add prefix commands, which simply route the call to help_list or cmd_show_list, as appropriate. This makes it impossible for a mismatch to occur. In some cases, a bit of output was removed; however, I don't think this output in general was very useful. It seemed redundant with what's already printed by help_list. A representative example is this hunk, removed from ada-lang.c: - printf_unfiltered (_(\ -"\"set ada\" must be followed by the name of a setting.\n")); This simplified the CLI style set/show commands quite a bit, and allowed the deletion of a macro. This also cleans up some unusual code in windows-tdep.c. Tested on x86-64 Fedora 30. Note that I have no way to build the go32-nat.c change. gdb/ChangeLog 2020-04-17 Tom Tromey <tromey@adacore.com> * auto-load.c (show_auto_load_cmd): Remove. (auto_load_show_cmdlist_get): Use add_show_prefix_cmd. * arc-tdep.c (_initialize_arc_tdep): Use add_show_prefix_cmd. (maintenance_print_arc_command): Remove. * tui/tui-win.c (tui_command): Remove. (tui_get_cmd_list): Use add_basic_prefix_cmd. * tui/tui-layout.c (tui_layout_command): Remove. (_initialize_tui_layout): Use add_basic_prefix_cmd. * python/python.c (user_set_python, user_show_python): Remove. (_initialize_python): Use add_basic_prefix_cmd, add_show_prefix_cmd. * guile/guile.c (set_guile_command, show_guile_command): Remove. (install_gdb_commands): Use add_basic_prefix_cmd, add_show_prefix_cmd. (info_guile_command): Remove. * dwarf2/read.c (set_dwarf_cmd, show_dwarf_cmd): Remove. (_initialize_dwarf2_read): Use add_basic_prefix_cmd, add_show_prefix_cmd. * cli/cli-style.h (class cli_style_option) <add_setshow_commands>: Remove do_set and do_show parameters. * cli/cli-style.c (set_style, show_style): Remove. (_initialize_cli_style): Use add_basic_prefix_cmd, add_show_prefix_cmd. (cli_style_option::add_setshow_commands): Remove do_set and do_show parameters. (cli_style_option::add_setshow_commands): Use add_basic_prefix_cmd, add_show_prefix_cmd. (STYLE_ADD_SETSHOW_COMMANDS): Remove macro. (set_style_name): Remove. * cli/cli-dump.c (dump_command, append_command): Remove. (srec_dump_command, ihex_dump_command, verilog_dump_command) (tekhex_dump_command, binary_dump_command) (binary_append_command): Remove. (_initialize_cli_dump): Use add_basic_prefix_cmd. * windows-tdep.c (w32_prefix_command_valid): Remove global. (init_w32_command_list): Remove; move into ... (_initialize_windows_tdep): ... here. Use add_basic_prefix_cmd. * valprint.c (set_print, show_print, set_print_raw) (show_print_raw): Remove. (_initialize_valprint): Use add_basic_prefix_cmd, add_show_prefix_cmd. * typeprint.c (set_print_type, show_print_type): Remove. (_initialize_typeprint): Use add_basic_prefix_cmd, add_show_prefix_cmd. * record.c (set_record_command, show_record_command): Remove. (_initialize_record): Use add_basic_prefix_cmd, add_show_prefix_cmd. * cli/cli-cmds.c (_initialize_cli_cmds): Use add_basic_prefix_cmd, add_show_prefix_cmd. (info_command, show_command, set_debug, show_debug): Remove. * top.h (set_history, show_history): Don't declare. * top.c (set_history, show_history): Remove. * target-descriptions.c (set_tdesc_cmd, show_tdesc_cmd) (unset_tdesc_cmd): Remove. (_initialize_target_descriptions): Use add_basic_prefix_cmd, add_show_prefix_cmd. * symtab.c (info_module_command): Remove. (_initialize_symtab): Use add_basic_prefix_cmd. * symfile.c (overlay_command): Remove. (_initialize_symfile): Use add_basic_prefix_cmd. * sparc64-tdep.c (info_adi_command): Remove. (_initialize_sparc64_adi_tdep): Use add_basic_prefix_cmd. * sh-tdep.c (show_sh_command, set_sh_command): Remove. (_initialize_sh_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * serial.c (serial_set_cmd, serial_show_cmd): Remove. (_initialize_serial): Use add_basic_prefix_cmd, add_show_prefix_cmd. * ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Remove. (_initialize_ser_tcp): Use add_basic_prefix_cmd, add_show_prefix_cmd. * rs6000-tdep.c (set_powerpc_command, show_powerpc_command) (_initialize_rs6000_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * riscv-tdep.c (show_riscv_command, set_riscv_command) (show_debug_riscv_command, set_debug_riscv_command): Remove. (_initialize_riscv_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * remote.c (remote_command, set_remote_cmd): Remove. (_initialize_remote): Use add_basic_prefix_cmd. * record-full.c (set_record_full_command) (show_record_full_command): Remove. (_initialize_record_full): Use add_basic_prefix_cmd, add_show_prefix_cmd. * record-btrace.c (cmd_set_record_btrace) (cmd_show_record_btrace, cmd_set_record_btrace_bts) (cmd_show_record_btrace_bts, cmd_set_record_btrace_pt) (cmd_show_record_btrace_pt): Remove. (_initialize_record_btrace): Use add_basic_prefix_cmd, add_show_prefix_cmd. * ravenscar-thread.c (set_ravenscar_command) (show_ravenscar_command): Remove. (_initialize_ravenscar): Use add_basic_prefix_cmd, add_show_prefix_cmd. * mips-tdep.c (show_mips_command, set_mips_command) (_initialize_mips_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * maint.c (maintenance_command, maintenance_info_command) (maintenance_check_command, maintenance_print_command) (maintenance_set_cmd, maintenance_show_cmd): Remove. (_initialize_maint_cmds): Use add_basic_prefix_cmd, add_show_prefix_cmd. (show_per_command_cmd): Remove. * maint-test-settings.c (maintenance_set_test_settings_cmd): Remove. (maintenance_show_test_settings_cmd): Remove. (_initialize_maint_test_settings): Use add_basic_prefix_cmd, add_show_prefix_cmd. * maint-test-options.c (maintenance_test_options_command): Remove. (_initialize_maint_test_options): Use add_basic_prefix_cmd. * macrocmd.c (macro_command): Remove (_initialize_macrocmd): Use add_basic_prefix_cmd. * language.c (set_check, show_check): Remove. (_initialize_language): Use add_basic_prefix_cmd, add_show_prefix_cmd. * infcmd.c (unset_command): Remove. (_initialize_infcmd): Use add_basic_prefix_cmd. * i386-tdep.c (set_mpx_cmd, show_mpx_cmd): Remove. (_initialize_i386_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * go32-nat.c (go32_info_dos_command): Remove. (_initialize_go32_nat): Use add_basic_prefix_cmd. * cli/cli-decode.c (do_prefix_cmd, add_basic_prefix_cmd) (do_show_prefix_cmd, add_show_prefix_cmd): New functions. * frame.c (set_backtrace_cmd, show_backtrace_cmd): Remove. (_initialize_frame): Use add_basic_prefix_cmd, add_show_prefix_cmd. * dcache.c (set_dcache_command, show_dcache_command): Remove. (_initialize_dcache): Use add_basic_prefix_cmd, add_show_prefix_cmd. * cp-support.c (maint_cplus_command): Remove. (_initialize_cp_support): Use add_basic_prefix_cmd. * btrace.c (maint_btrace_cmd, maint_btrace_set_cmd) (maint_btrace_show_cmd, maint_btrace_pt_set_cmd) (maint_btrace_pt_show_cmd, _initialize_btrace): Use add_basic_prefix_cmd, add_show_prefix_cmd. * breakpoint.c (save_command): Remove. (_initialize_breakpoint): Use add_basic_prefix_cmd. * arm-tdep.c (set_arm_command, show_arm_command): Remove. (_initialize_arm_tdep): Use add_basic_prefix_cmd, add_show_prefix_cmd. * ada-lang.c (maint_set_ada_cmd, maint_show_ada_cmd) (set_ada_command, show_ada_command): Remove. (_initialize_ada_language): Use add_basic_prefix_cmd, add_show_prefix_cmd. * command.h (add_basic_prefix_cmd, add_show_prefix_cmd): Declare. gdb/testsuite/ChangeLog 2020-04-17 Tom Tromey <tromey@adacore.com> * gdb.cp/maint.exp (test_help): Simplify multiple_help_body. Update tests. * gdb.btrace/cpu.exp: Update tests. * gdb.base/maint.exp: Update tests. * gdb.base/default.exp: Update tests. * gdb.base/completion.exp: Update tests. |
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Andrew Burgess
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dd8953924b |
gdb/riscv: Apply NaN boxing when writing return values into registers
When setting up function parameters we already perform NaN boxing, as required by the RISC-V ABI, however, we don't do this when writing values into registers as part of setting up a return value. This commit moves the NaN boxing code into a small helper function, and then makes use of this function when setting up function parameters, and also when setting up return values. This should resolve this failure: FAIL: gdb.base/return-nodebug.exp: float: full width of the returned result gdb/ChangeLog: PR gdb/25489 * riscv-tdep.c (riscv_arg_info::c_offset): Update comment. (riscv_regcache_cooked_write): New function. (riscv_push_dummy_call): Use new function. (riscv_return_value): Likewise. |
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Tom Tromey
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040f66bd2d |
Use common_val_print in riscv-tdep.c
This changes some spots in riscv-tdep.c to use common_val_print rather than val_print. gdb/ChangeLog 2020-03-13 Tom Tromey <tom@tromey.com> * riscv-tdep.c (riscv_print_one_register_info): Use common_val_print. |
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Nelson Chu
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bd0cf5a6ba |
RISC-V: Support the ISA-dependent CSR checking.
According to the riscv privilege spec, some CSR are only valid when rv32 or the specific extension is set. We extend the DECLARE_CSR and DECLARE_CSR_ALIAS to record more informaton we need, and then check whether the CSR is valid according to these information. We report warning message when the CSR is invalid, so we have a choice between error and warning by --fatal-warnings option. Also, a --no-warn/-W option is used to turn the warnings off, if people don't want the warnings. gas/ * config/tc-riscv.c (enum riscv_csr_class): New enum. Used to decide whether or not this CSR is legal in the current ISA string. (struct riscv_csr_extra): New structure to hold all extra information of CSR. (riscv_init_csr_hash): New function. According to the DECLARE_CSR and DECLARE_CSR_ALIAS, insert CSR extra information into csr_extra_hash. Call hash_reg_name to insert CSR address into reg_names_hash. (md_begin): Call riscv_init_csr_hashes for each DECLARE_CSR. (reg_csr_lookup_internal, riscv_csr_class_check): New functions. Decide whether the CSR is valid according to the csr_extra_hash. (init_opcode_hash): Update 'if (hash_error != NULL)' as hash_error is not a boolean. This is same as riscv_init_csr_hash, so keep the consistent usage. * testsuite/gas/riscv/csr-dw-regnums.d: Add -march=rv32if option. * testsuite/gas/riscv/priv-reg.d: Add f-ext by -march option. * testsuite/gas/riscv/priv-reg-fail-fext.d: New testcase. The source file is `priv-reg.s`, and the ISA is rv32i without f-ext, so the f-ext CSR are not allowed. * testsuite/gas/riscv/priv-reg-fail-fext.l: Likewise. * testsuite/gas/riscv/priv-reg-fail-rv32-only.d: New testcase. The source file is `priv-reg.s`, and the ISA is rv64if, so the rv32-only CSR are not allowed. * testsuite/gas/riscv/priv-reg-fail-rv32-only.l: Likewise. include/ * opcode/riscv-opc.h: Extend DECLARE_CSR and DECLARE_CSR_ALIAS to record riscv_csr_class. opcodes/ * riscv-dis.c (print_insn_args): Updated since the DECLARE_CSR is changed. gdb/ * riscv-tdep.c: Updated since the DECLARE_CSR is changed. * riscv-tdep.h: Likewise. * features/riscv/rebuild-csr-xml.sh: Generate the 64bit-csr.xml without rv32-only CSR. * features/riscv/64bit-csr.xml: Regernated. binutils/ * dwarf.c: Updated since the DECLARE_CSR is changed. |
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Andrew Burgess
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d1c9b20ff9 |
gdb/riscv: Update API for looking up target descriptions
In preparation for adding the RISC-V gdbserver, this commit restructures the API for looking up target descriptions. The current API is riscv_create_target_description, which creates a target description from a riscv_gdbarch_features, but also caches the created target descriptions so that for a given features object we always get back the same target description object. This is important for GDB due to the way gdbarch objects are reused. As the same target description is always returned to GDB, and can be returned multiple times, it is returned as a const, however, the current cache actually stores a non-const target description. This is improved in this patch so that the cache holds a const target description. For gdbsever, this caching of the target descriptions is not needed, the gdbserver looks up one target description to describe the target it is actually running on and that is it. Further the gdbserver actually needs to modify the target description that is looked up, so for the gdbsever, returning a const target description is not acceptable. This commit aims to address this by creating two parallel target description APIs, on is the old riscv_create_target_description, however, this no longer performs any caching, and just creates a new target description, and returns it as non-const. The second API is riscv_lookup_target_description, this one performs the caching, and calls riscv_create_target_description to create a target description when needed. In order to make sure the correct API is used in the correct place I have guarded the code using the GDBSERVER define. For GDB the riscv_create_target_description is static, and not generally usable throughout GDB, only the lookup API is global. In gdbserver, the lookup functions, and the cache are not defined or created at all, only the riscv_create_target_description API is available. There should be no user visible changes after this commit. gdb/ChangeLog: * arch/riscv.c (struct riscv_gdbarch_features_hasher): Only define if GDBSERVER is not defined. (riscv_tdesc_cache): Likewise, also store const target_desc. (STATIC_IN_GDB): Define. (riscv_create_target_description): Update declaration with STATIC_IN_GDB. (riscv_lookup_target_description): New function, only define if GDBSERVER is not defined. * arch/riscv.h (riscv_create_target_description): Declare only when GDBSERVER is defined. (riscv_lookup_target_description): New declaration when GDBSERVER is not defined. * nat/riscv-linux-tdesc.c (riscv_linux_read_description): Rename to... (riscv_linux_read_features): ...this, and return riscv_gdbarch_features instead of target_desc. * nat/riscv-linux-tdesc.h: Include 'arch/riscv.h'. (riscv_linux_read_description): Rename to... (riscv_linux_read_features): ...this. * riscv-linux-nat.c (riscv_linux_nat_target::read_description): Update to use riscv_gdbarch_features and riscv_lookup_target_description. * riscv-tdep.c (riscv_find_default_target_description): Use riscv_lookup_target_description instead of riscv_create_target_description. |
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Tom Tromey
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82ca895718 |
Move DWARF code to dwarf2/ subdirectory
This moves all the remaining DWARF code to the new dwarf2 subdirectory. This is just a simple renaming, with updates to includes as needed. gdb/ChangeLog 2020-02-08 Tom Tromey <tom@tromey.com> * dwarf2/expr.c: Rename from dwarf2expr.c. * dwarf2/expr.h: Rename from dwarf2expr.h. * dwarf2/frame-tailcall.c: Rename from dwarf2-frame-tailcall.c. * dwarf2/frame-tailcall.h: Rename from dwarf2-frame-tailcall.h. * dwarf2/frame.c: Rename from dwarf2-frame.c. * dwarf2/frame.h: Rename from dwarf2-frame.h. * dwarf2/index-cache.c: Rename from dwarf-index-cache.c. * dwarf2/index-cache.h: Rename from dwarf-index-cache.h. * dwarf2/index-common.c: Rename from dwarf-index-common.c. * dwarf2/index-common.h: Rename from dwarf-index-common.h. * dwarf2/index-write.c: Rename from dwarf-index-write.c. * dwarf2/index-write.h: Rename from dwarf-index-write.h. * dwarf2/loc.c: Rename from dwarf2loc.c. * dwarf2/loc.h: Rename from dwarf2loc.h. * dwarf2/read.c: Rename from dwarf2read.c. * dwarf2/read.h: Rename from dwarf2read.h. * dwarf2/abbrev.c, aarch64-tdep.c, alpha-tdep.c, amd64-darwin-tdep.c, arc-tdep.c, arm-tdep.c, bfin-tdep.c, compile/compile-c-symbols.c, compile/compile-cplus-symbols.c, compile/compile-loc2c.c, cris-tdep.c, csky-tdep.c, findvar.c, gdbtypes.c, guile/scm-type.c, h8300-tdep.c, hppa-bsd-tdep.c, hppa-linux-tdep.c, i386-darwin-tdep.c, i386-linux-tdep.c, i386-tdep.c, iq2000-tdep.c, m32c-tdep.c, m68hc11-tdep.c, m68k-tdep.c, microblaze-tdep.c, mips-tdep.c, mn10300-tdep.c, msp430-tdep.c, nds32-tdep.c, nios2-tdep.c, or1k-tdep.c, riscv-tdep.c, rl78-tdep.c, rs6000-tdep.c, rx-tdep.c, s12z-tdep.c, s390-tdep.c, score-tdep.c, sh-tdep.c, sparc-linux-tdep.c, sparc-tdep.c, sparc64-linux-tdep.c, sparc64-tdep.c, tic6x-tdep.c, tilegx-tdep.c, v850-tdep.c, xstormy16-tdep.c, xtensa-tdep.c: Update. * Makefile.in (COMMON_SFILES): Update. (HFILES_NO_SRCDIR): Update. Change-Id: Ied9ce1436cd27ac4a4cffef10ec92e396f181928 |
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Simon Marchi
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6c2659886f |
gdb: add back declarations for _initialize functions
I'd like to enable the -Wmissing-declarations warning. However, it
warns for every _initialize function, for example:
CXX dcache.o
/home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
/home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
_initialize_dcache (void)
^~~~~~~~~~~~~~~~~~
The only practical way forward I found is to add back the declarations,
which were removed by this commit:
commit
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Joel Brobecker
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b811d2c292 |
Update copyright year range in all GDB files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
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Tom Tromey
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db3ad2f031 |
Ravenscar port for RISC-V
This adds Ravenscar support to gdb for RISC-V targets. This was tested internally using AdaCore's test suite and qemu. gdb/ChangeLog 2019-12-12 Tom Tromey <tromey@adacore.com> * Makefile.in (ALL_TARGET_OBS): Add riscv-ravenscar-thread.o. (HFILES_NO_SRCDIR): Add riscv-ravenscar-thread.h. (ALLDEPFILES): Add riscv-ravenscar-thread.c. * configure.tgt (riscv-*-*): Add riscv-ravenscar-thread.o. * riscv-ravenscar-thread.c: New file. * riscv-ravenscar-thread.h: New file. * riscv-tdep.c (riscv_gdbarch_init): Call register_riscv_ravenscar_ops. Change-Id: Ic47a3b3cfbbe80c2c82a5f48d2e0481845cac8b0 |
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Peeter Joot
|
34877895ca |
Adjust byte order variable display/change if DW_AT_endianity is present.
- Rationale:
It is possible for compilers to indicate the desired byte order
interpretation of scalar variables using the DWARF attribute:
DW_AT_endianity
A type flagged with this variable would typically use one of:
DW_END_big
DW_END_little
which instructs the debugger what the desired byte order interpretation
of the variable should be.
The GCC compiler (as of V6) has a mechanism for setting the desired byte
ordering of the fields within a structure or union. For, example, on a
little endian target, a structure declared as:
struct big {
int v;
short a[4];
} __attribute__( ( scalar_storage_order( "big-endian" ) ) );
could be used to ensure all the structure members have a big-endian
interpretation (the compiler would automatically insert byte swap
instructions before and after respective store and load instructions).
- To reproduce
GCC V8 is required to correctly emit DW_AT_endianity DWARF attributes
in all situations when the scalar_storage_order attribute is used.
A fix for (dwarf endianity instrumentation) for GCC V6-V7 can be found
in the URL field of the following PR:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509
- Test-case:
A new test case (testsuite/gdb.base/endianity.*) is included with this
patch.
Manual testing for mixed endianity code has also been done with GCC V8.
See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509#c4
- Observed vs. expected:
Without this change, using scalar_storage_order that doesn't match the
target, such as
struct otherendian
{
int v;
} __attribute__( ( scalar_storage_order( "big-endian" ) ) );
would behave like the following on a little endian target:
Breakpoint 1 at 0x401135: file endianity.c, line 41.
(gdb) run
Starting program: /home/pjoot/freeware/t/a.out
Missing separate debuginfos, use: debuginfo-install glibc-2.17-292.el7.x86_64
Breakpoint 1, main () at endianity.c:41
41 struct otherendian o = {3};
(gdb) n
43 do_nothing (&o); /* START */
(gdb) p o
$1 = {v = 50331648}
(gdb) p /x
$2 = {v = 0x3000000}
whereas with this gdb enhancement we can access the variable with the user
specified endianity:
Breakpoint 1, main () at endianity.c:41
41 struct otherendian o = {3};
(gdb) p o
$1 = {v = 0}
(gdb) n
43 do_nothing (&o); /* START */
(gdb) p o
$2 = {v = 3}
(gdb) p o.v = 4
$3 = 4
(gdb) p o.v
$4 = 4
(gdb) x/4xb &o.v
0x7fffffffd90c: 0x00 0x00 0x00 0x04
(observe that the 4 byte int variable has a big endian representation in the
hex dump.)
gdb/ChangeLog
2019-11-21 Peeter Joot <peeter.joot@lzlabs.com>
Byte reverse display of variables with DW_END_big, DW_END_little
(DW_AT_endianity) dwarf attributes if different than the native
byte order.
* ada-lang.c (ada_value_binop):
Use type_byte_order instead of gdbarch_byte_order.
* ada-valprint.c (printstr):
(ada_val_print_string):
* ada-lang.c (value_pointer):
(ada_value_binop):
Use type_byte_order instead of gdbarch_byte_order.
* c-lang.c (c_get_string):
Use type_byte_order instead of gdbarch_byte_order.
* c-valprint.c (c_val_print_array):
Use type_byte_order instead of gdbarch_byte_order.
* cp-valprint.c (cp_print_class_member):
Use type_byte_order instead of gdbarch_byte_order.
* dwarf2loc.c (rw_pieced_value):
Use type_byte_order instead of gdbarch_byte_order.
* dwarf2read.c (read_base_type): Handle DW_END_big,
DW_END_little
* f-lang.c (f_get_encoding):
Use type_byte_order instead of gdbarch_byte_order.
* findvar.c (default_read_var_value):
Use type_byte_order instead of gdbarch_byte_order.
* gdbtypes.c (check_types_equal):
Require matching TYPE_ENDIANITY_NOT_DEFAULT if set.
(recursive_dump_type): Print TYPE_ENDIANITY_BIG,
and TYPE_ENDIANITY_LITTLE if set.
(type_byte_order): new function.
* gdbtypes.h (TYPE_ENDIANITY_NOT_DEFAULT): New macro.
(struct main_type) <flag_endianity_not_default>:
New field.
(type_byte_order): New function.
* infcmd.c (default_print_one_register_info):
Use type_byte_order instead of gdbarch_byte_order.
* p-lang.c (pascal_printstr):
Use type_byte_order instead of gdbarch_byte_order.
* p-valprint.c (pascal_val_print):
Use type_byte_order instead of gdbarch_byte_order.
* printcmd.c (print_scalar_formatted):
Use type_byte_order instead of gdbarch_byte_order.
* solib-darwin.c (darwin_current_sos):
Use type_byte_order instead of gdbarch_byte_order.
* solib-svr4.c (solib_svr4_r_ldsomap):
Use type_byte_order instead of gdbarch_byte_order.
* stap-probe.c (stap_modify_semaphore):
Use type_byte_order instead of gdbarch_byte_order.
* target-float.c (target_float_same_format_p):
Use type_byte_order instead of gdbarch_byte_order.
* valarith.c (scalar_binop):
(value_bit_index):
Use type_byte_order instead of gdbarch_byte_order.
* valops.c (value_cast):
Use type_byte_order instead of gdbarch_byte_order.
* valprint.c (generic_emit_char):
(generic_printstr):
(val_print_string):
Use type_byte_order instead of gdbarch_byte_order.
* value.c (unpack_long):
(unpack_bits_as_long):
(unpack_value_bitfield):
(modify_field):
(pack_long):
(pack_unsigned_long):
Use type_byte_order instead of gdbarch_byte_order.
* findvar.c (unsigned_pointer_to_address):
(signed_pointer_to_address):
(unsigned_address_to_pointer):
(address_to_signed_pointer):
(default_read_var_value):
(default_value_from_register):
Use type_byte_order instead of gdbarch_byte_order.
* gnu-v3-abi.c (gnuv3_make_method_ptr):
Use type_byte_order instead of gdbarch_byte_order.
* riscv-tdep.c (riscv_print_one_register_info):
Use type_byte_order instead of gdbarch_byte_order.
gdb/testsuite/ChangeLog
2019-11-21 Peeter Joot <peeter.joot@lzlabs.com>
* gdb.base/endianity.c: New test.
* gdb.base/endianity.exp: New file.
Change-Id: I4bd98c1b4508c2d7c5a5dbb15d7b7b1cb4e667e2
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Tom de Vries
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405feb71d4 |
[gdb] Fix typos in comments
Fix typos in comments. NFC. Tested on x86_64-linux. gdb/ChangeLog: 2019-10-17 Tom de Vries <tdevries@suse.de> * arm-nbsd-nat.c: Fix typos in comments. * arm-tdep.c: Same. * darwin-nat-info.c: Same. * dwarf2read.c: Same. * elfread.c: Same. * event-top.c: Same. * findvar.c: Same. * gdbtypes.c: Same. * hppa-tdep.c: Same. * i386-tdep.c: Same. * jit.c: Same. * main.c: Same. * mdebugread.c: Same. * moxie-tdep.c: Same. * nto-procfs.c: Same. * osabi.c: Same. * ppc-linux-tdep.c: Same. * remote.c: Same. * riscv-tdep.c: Same. * s390-tdep.c: Same. * sh-tdep.c: Same. * sparc-linux-tdep.c: Same. * sparc-nat.c: Same. * stack.c: Same. * target-descriptions.c: Same. * top.c: Same. * varobj.c: Same. Change-Id: I6047967abd2d51c9000dea15184d19f4e952c3ff |
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Jim Wilson
|
ff371ec999 |
Add initial compile command support to RISC-V port.
This adds initial compile command support to the RISC-V port. This fixes about 228 testsuite failures on a riscv64-linux machine. We need to get the triplet right which is normally riscv64 or riscv32 instead of the default riscv. Also, we need to get the compiler options right, since we don't accept the default -m64 and -mcmodel=large options, so we need to construct -march and -mabi options which are correct for the target. We currently don't have info about all extensions used by the target, so this may need to be adjusted later. For now, I'm assuming that we have all extensions required by the linux platform spec. gdb/ * riscv-tdep.c (riscv_gcc_target_options): New. (riscv_gnu_triplet_regexp): New. (riscv_gdbarch_init): Call set_gdbarch_gcc_triplet_options and set_gdbarch_gnu_triplet_regexp. Change-Id: I315ce8de7789ddf7bdd3b532f917519464941294 |
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Jim Wilson
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a83d4ef693 |
RISC-V: Fix two ARI warnings.
> gdb/riscv-tdep.c:1657: code: %ll: Do not use printf(%ll), instead use printf(%s,phex()) to dump a 'long long' value gdb/riscv-tdep.c:1657: "Writing %lld-byte nop instruction to %s: %s\n", > gdb/riscv-tdep.c:1658: code: long long: Do not use 'long long', instead use LONGEST gdb/riscv-tdep.c:1658: ((unsigned long long) sizeof (nop_insn)), fprintf_unfiltered doesn't support z (or j for that matter), and fixing that is a larger patch than I'd like to write, so this does basically what the ARI warnings recommends. We don't need the cast as there is a prototype for plongest. * riscv-tdep.c (riscv_push_dummy_code): Change %lld to %s and use plongest instead of unsigned long long cast. |
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Andrew Burgess
|
01e175fe1b |
gdb/riscv: Write 4-byte nop to dummy code region before inferior calls
When making inferior function calls GDB sets up a dummy code region on the stack, and places a breakpoint within that region. If the random stack contents appear to be a compressed instruction then GDB will place a compressed breakpoint, which can cause problems if the target doesn't support compressed instructions. This commit prevents this issue by writing a 4-byte nop instruction to the dummy region at the time the region is allocated. With this nop instruction in place, when we come to insert the breakpoint then an uncompressed breakpoint will be used. This is similar to other targets, for example mips. gdb/ChangeLog: * riscv-tdep.c (riscv_push_dummy_code): Write a 4-byte nop instruction to the dummy code region. gdb/testsuite/ChangeLog: * gdb.arch/riscv-bp-infcall.c: New file. * gdb.arch/riscv-bp-infcall.exp: New file. |
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Tom Tromey
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268a13a5a3 |
Rename common to gdbsupport
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport. |
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Andrew Burgess
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b3a7d1711e |
gdb/riscv: Don't use default bfd to define required features
When we initialise a gdbarch object we perform a check to try and detect if the user is doing something silly; trying to run an RV64 binary on an RV32 target. To perform this check we compare the xlen from the target description with the xlen specified in the headers on the ELF being debugged. If there is no ELF being debugged then we (currently) try to use the bfd_arch_info from the gdbarch_info object, which will have been set to the default architecture if no bfd is currently being debugged. For RISC-V the default architecture is RV64. What this means is that if a user tries to connect to an RV32 target without specifying the BFD to debug then GDB will assume RV64. The sanity check mentioned above will failed (xlen difference) and GDB will throw an error. The error causes GDB to disconnect from the remote target. After this commit GDB no longer relies on the default bfd architecture. If the user tries to connect without specifying the bfd then GDB will simply make use of the xlen extracted from the target description in order to find or create a suitable gdbarch object. gdb/ChangeLog: * riscv-tdep.c (riscv_features_from_gdbarch_info): Don't modify required features based on default bfd type when no specific bfd is present. |
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Andrew Burgess
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312617a3d0 |
gdb/riscv: Don't error when decoding a 6 or 8 byte instruction
If the RISC-V prologue scanner finds a 6 or 8 byte instruction we currently throw an internal error, which is not great for the user. A mechanism already exists in the prologue scanner to leave instructions marked as unknown so that we can stop the prologue scan without raising an error, this is used for all 2 and 4 byte instructions that are not part of the small set the prologue scanner actually understands. This commit changes GDB so that all 6 and 8 byte instructions are marked as unknown, rather than causing an error. gdb/ChangeLog: * riscv-tdep.c (riscv_insn::decode): Gracefully ignore instructions of lengths 6 or 8 bytes. gdb/testsuite/ChangeLog: * gdb.arch/riscv-unwind-long-insn-6.s: New file. * gdb.arch/riscv-unwind-long-insn-8.s: New file. * gdb.arch/riscv-unwind-long-insn.c: New file. * gdb.arch/riscv-unwind-long-insn.exp: New file. |
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Simon Cook
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0a5954bd5f |
gdb/riscv: Improve flen length determination
This solves an assertion failure when a remote provides a target description which only refers to floating point registers by their hardware name (e.g. f0), rather than their ABI name (e.g. ft0). GDB assumed that should the floating point register feature be presented, it would contain a register called ft0. The floating point length is now instead determined by searching for the same register, but looking for any of its aliases. gdb/ChangeLog: * riscv-tdep.c (riscv_gdbarch_init): Support determining flen from target descriptions using exclusively floating point register name aliases. |
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Andrew Burgess
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c01660c625 |
gdb/riscv: Allow breakpoints to be created at invalid addresses
Some testsuite cases (gdb.cp/nsalias.exp for example) construct dwarf2 debug info for fake functions to test that this debug info is handled correctly. We currently get an error trying to read from an invalid address while creating breakpoints for these fake functions. Other targets allow creating breakpoints on invalid addresses, and only error when GDB actually tries to insert the breakpoints. In order to make RISC-V behave in the same way as other targets, this commit makes the failure to read memory during breakpoint creation non-fatal, we then expect to see a failure when GDB tries to insert the breakpoint, just like other targets. Tested with a riscv64-linux native testsuite run. gdb/ChangeLog: * riscv-tdep.c (riscv_breakpoint_kind_from_pc): Hanndle case where code read might fail, assume 4-byte breakpoint in that case. |
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Andrew Burgess
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a9158a863c |
gdb/riscv: Remove riscv_type_alignment function
Make use of the type_align function and remove riscv_type_alignment as it is no longer needed. I tested this against a number of RV32 and RV64 targets, and I also ran the tests with an assertion in place checking that the old riscv_type_alignment function gives the same answer as the common type_align function - it does, and all the tests still pass. gdb/ChangeLog: * riscv-tdep.c (riscv_type_align): New function. (riscv_type_alignment): Delete. (riscv_arg_location): Use 'type_align'. (riscv_gdbarch_init): Register riscv_type_align gdbarch function. |
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Andrew Burgess
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9f0272f854 |
gdb/riscv: Handle empty C++ structs during argument passing
This commit resolves a large number of failures in the test script
gdb.base/infcall-nested-structs.exp which were caused by GDB (for
RISC-V) incorrectly handling empty C++ structures when preparing
arguments for a dummy call, or collecting a return value.
The issue is further complicated in that there was a bug in GCC, such
that in some cases GCC would generate incorrect code when passing a
small structure that contained empty sub-structures. This was fixed
in GCC trunk on 5-March-2019, so in order to see the best results with
this patch you'll need a recent version of GCC.
Anything that used to work should continue to work after this patch,
regardless of GCC version being used.
The fix in this commit is that GDB now pays more attention to the
offset of fields within a structure when preparing arguments as in C++
an empty structure has a non-zero size, this is an example:
struct s1 { struct s2 { } empty; int f; };
We previously assumed that 'f' was at offset 0 inside type 's1',
however this is not the case in C++ as 's2' has size 1, and with
alignment 'f' is likely at some even bigger offset inside 's1'.
gdb/ChangeLog:
* riscv-tdep.c (riscv_call_arg_complex_float): Fix offset of first
component to 0.
(riscv_struct_info::riscv_struct_info): Initialise m_offsets
member.
(riscv_struct_info::analyse): New implementation using new
analyse_inner member function.
(riscv_struct_info::field_offset): New member function.
(riscv_struct_info::m_offsets): New member variable.
(riscv_struct_info::analyse_inner): New private member function,
takes the old implementation of riscv_struct_info::analyse but
extended to track field offsets.
(riscv_call_arg_struct): Update the struct folding special cases
to handle cases where empty C++ structs, which are non-zero
length, are found.
(riscv_arg_location): Initialise the length of each location, a
non-zero length now indicates the location is in use.
(riscv_push_dummy_call): Allow for the first location having a
non-zero offset when setting up arguments.
(riscv_return_value): Likewise, but for return values.
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Tom Tromey
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230d2906b9 |
Rename gdb exception types
This renames the gdb exception types. The old types were only needed due to the macros in common-exception.h that are now gone. The intermediate layer of gdb_exception_RETURN_MASK_ALL did not seem needed, so this patch removes it entirely. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * common/common-exceptions.h (gdb_exception_RETURN_MASK_ALL): Remove. (gdb_exception_error): Rename from gdb_exception_RETURN_MASK_ERROR. (gdb_exception_quit): Rename from gdb_exception_RETURN_MASK_QUIT. (gdb_quit_bad_alloc): Update. * aarch64-tdep.c: Update. * ada-lang.c: Update. * ada-typeprint.c: Update. * ada-valprint.c: Update. * amd64-tdep.c: Update. * arch-utils.c: Update. * break-catch-throw.c: Update. * breakpoint.c: Update. * btrace.c: Update. * c-varobj.c: Update. * cli/cli-cmds.c: Update. * cli/cli-interp.c: Update. * cli/cli-script.c: Update. * common/common-exceptions.c: Update. * common/new-op.c: Update. * common/selftest.c: Update. * compile/compile-c-symbols.c: Update. * compile/compile-cplus-symbols.c: Update. * compile/compile-object-load.c: Update. * compile/compile-object-run.c: Update. * completer.c: Update. * corelow.c: Update. * cp-abi.c: Update. * cp-support.c: Update. * cp-valprint.c: Update. * darwin-nat.c: Update. * disasm-selftests.c: Update. * dtrace-probe.c: Update. * dwarf-index-cache.c: Update. * dwarf-index-write.c: Update. * dwarf2-frame-tailcall.c: Update. * dwarf2-frame.c: Update. * dwarf2loc.c: Update. * dwarf2read.c: Update. * eval.c: Update. * event-loop.c: Update. * event-top.c: Update. * exec.c: Update. * f-valprint.c: Update. * fbsd-tdep.c: Update. * frame-unwind.c: Update. * frame.c: Update. * gdbtypes.c: Update. * gnu-v3-abi.c: Update. * guile/guile-internal.h: Update. * guile/scm-block.c: Update. * guile/scm-breakpoint.c: Update. * guile/scm-cmd.c: Update. * guile/scm-disasm.c: Update. * guile/scm-frame.c: Update. * guile/scm-lazy-string.c: Update. * guile/scm-math.c: Update. * guile/scm-param.c: Update. * guile/scm-ports.c: Update. * guile/scm-pretty-print.c: Update. * guile/scm-symbol.c: Update. * guile/scm-symtab.c: Update. * guile/scm-type.c: Update. * guile/scm-value.c: Update. * i386-linux-tdep.c: Update. * i386-tdep.c: Update. * inf-loop.c: Update. * infcall.c: Update. * infcmd.c: Update. * infrun.c: Update. * jit.c: Update. * language.c: Update. * linespec.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * main.c: Update. * mi/mi-cmd-break.c: Update. * mi/mi-cmd-stack.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * objc-lang.c: Update. * p-valprint.c: Update. * parse.c: Update. * ppc-linux-tdep.c: Update. * printcmd.c: Update. * python/py-arch.c: Update. * python/py-breakpoint.c: Update. * python/py-cmd.c: Update. * python/py-finishbreakpoint.c: Update. * python/py-frame.c: Update. * python/py-framefilter.c: Update. * python/py-gdb-readline.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * python/py-lazy-string.c: Update. * python/py-linetable.c: Update. * python/py-objfile.c: Update. * python/py-param.c: Update. * python/py-prettyprint.c: Update. * python/py-progspace.c: Update. * python/py-record-btrace.c: Update. * python/py-record.c: Update. * python/py-symbol.c: Update. * python/py-type.c: Update. * python/py-unwind.c: Update. * python/py-utils.c: Update. * python/py-value.c: Update. * python/python.c: Update. * record-btrace.c: Update. * record-full.c: Update. * remote-fileio.c: Update. * remote.c: Update. * riscv-tdep.c: Update. * rs6000-aix-tdep.c: Update. * rs6000-tdep.c: Update. * rust-exp.y: Update. * rust-lang.c: Update. * s390-tdep.c: Update. * selftest-arch.c: Update. * solib-dsbt.c: Update. * solib-frv.c: Update. * solib-spu.c: Update. * solib-svr4.c: Update. * solib.c: Update. * sparc64-linux-tdep.c: Update. * stack.c: Update. * symfile-mem.c: Update. * symmisc.c: Update. * target.c: Update. * thread.c: Update. * top.c: Update. * tracefile-tfile.c: Update. * tui/tui.c: Update. * typeprint.c: Update. * unittests/cli-utils-selftests.c: Update. * unittests/parse-connection-spec-selftests.c: Update. * valops.c: Update. * valprint.c: Update. * value.c: Update. * varobj.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * xml-support.c: Update. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * gdbreplay.c: Update. * linux-low.c: Update. * server.c: Update. |
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Tom Tromey
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a70b814420 |
Rewrite TRY/CATCH
This rewrites gdb's TRY/CATCH to plain C++ try/catch. The patch was largely written by script, though one change (to a comment in common-exceptions.h) was reverted by hand. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * xml-support.c: Use C++ exception handling. * x86-linux-nat.c: Use C++ exception handling. * windows-nat.c: Use C++ exception handling. * varobj.c: Use C++ exception handling. * value.c: Use C++ exception handling. * valprint.c: Use C++ exception handling. * valops.c: Use C++ exception handling. * unittests/parse-connection-spec-selftests.c: Use C++ exception handling. * unittests/cli-utils-selftests.c: Use C++ exception handling. * typeprint.c: Use C++ exception handling. * tui/tui.c: Use C++ exception handling. * tracefile-tfile.c: Use C++ exception handling. * top.c: Use C++ exception handling. * thread.c: Use C++ exception handling. * target.c: Use C++ exception handling. * symmisc.c: Use C++ exception handling. * symfile-mem.c: Use C++ exception handling. * stack.c: Use C++ exception handling. * sparc64-linux-tdep.c: Use C++ exception handling. * solib.c: Use C++ exception handling. * solib-svr4.c: Use C++ exception handling. * solib-spu.c: Use C++ exception handling. * solib-frv.c: Use C++ exception handling. * solib-dsbt.c: Use C++ exception handling. * selftest-arch.c: Use C++ exception handling. * s390-tdep.c: Use C++ exception handling. * rust-lang.c: Use C++ exception handling. * rust-exp.y: Use C++ exception handling. * rs6000-tdep.c: Use C++ exception handling. * rs6000-aix-tdep.c: Use C++ exception handling. * riscv-tdep.c: Use C++ exception handling. * remote.c: Use C++ exception handling. * remote-fileio.c: Use C++ exception handling. * record-full.c: Use C++ exception handling. * record-btrace.c: Use C++ exception handling. * python/python.c: Use C++ exception handling. * python/py-value.c: Use C++ exception handling. * python/py-utils.c: Use C++ exception handling. * python/py-unwind.c: Use C++ exception handling. * python/py-type.c: Use C++ exception handling. * python/py-symbol.c: Use C++ exception handling. * python/py-record.c: Use C++ exception handling. * python/py-record-btrace.c: Use C++ exception handling. * python/py-progspace.c: Use C++ exception handling. * python/py-prettyprint.c: Use C++ exception handling. * python/py-param.c: Use C++ exception handling. * python/py-objfile.c: Use C++ exception handling. * python/py-linetable.c: Use C++ exception handling. * python/py-lazy-string.c: Use C++ exception handling. * python/py-infthread.c: Use C++ exception handling. * python/py-inferior.c: Use C++ exception handling. * python/py-gdb-readline.c: Use C++ exception handling. * python/py-framefilter.c: Use C++ exception handling. * python/py-frame.c: Use C++ exception handling. * python/py-finishbreakpoint.c: Use C++ exception handling. * python/py-cmd.c: Use C++ exception handling. * python/py-breakpoint.c: Use C++ exception handling. * python/py-arch.c: Use C++ exception handling. * printcmd.c: Use C++ exception handling. * ppc-linux-tdep.c: Use C++ exception handling. * parse.c: Use C++ exception handling. * p-valprint.c: Use C++ exception handling. * objc-lang.c: Use C++ exception handling. * mi/mi-main.c: Use C++ exception handling. * mi/mi-interp.c: Use C++ exception handling. * mi/mi-cmd-stack.c: Use C++ exception handling. * mi/mi-cmd-break.c: Use C++ exception handling. * main.c: Use C++ exception handling. * linux-thread-db.c: Use C++ exception handling. * linux-tdep.c: Use C++ exception handling. * linux-nat.c: Use C++ exception handling. * linux-fork.c: Use C++ exception handling. * linespec.c: Use C++ exception handling. * language.c: Use C++ exception handling. * jit.c: Use C++ exception handling. * infrun.c: Use C++ exception handling. * infcmd.c: Use C++ exception handling. * infcall.c: Use C++ exception handling. * inf-loop.c: Use C++ exception handling. * i386-tdep.c: Use C++ exception handling. * i386-linux-tdep.c: Use C++ exception handling. * guile/scm-value.c: Use C++ exception handling. * guile/scm-type.c: Use C++ exception handling. * guile/scm-symtab.c: Use C++ exception handling. * guile/scm-symbol.c: Use C++ exception handling. * guile/scm-pretty-print.c: Use C++ exception handling. * guile/scm-ports.c: Use C++ exception handling. * guile/scm-param.c: Use C++ exception handling. * guile/scm-math.c: Use C++ exception handling. * guile/scm-lazy-string.c: Use C++ exception handling. * guile/scm-frame.c: Use C++ exception handling. * guile/scm-disasm.c: Use C++ exception handling. * guile/scm-cmd.c: Use C++ exception handling. * guile/scm-breakpoint.c: Use C++ exception handling. * guile/scm-block.c: Use C++ exception handling. * guile/guile-internal.h: Use C++ exception handling. * gnu-v3-abi.c: Use C++ exception handling. * gdbtypes.c: Use C++ exception handling. * frame.c: Use C++ exception handling. * frame-unwind.c: Use C++ exception handling. * fbsd-tdep.c: Use C++ exception handling. * f-valprint.c: Use C++ exception handling. * exec.c: Use C++ exception handling. * event-top.c: Use C++ exception handling. * event-loop.c: Use C++ exception handling. * eval.c: Use C++ exception handling. * dwarf2read.c: Use C++ exception handling. * dwarf2loc.c: Use C++ exception handling. * dwarf2-frame.c: Use C++ exception handling. * dwarf2-frame-tailcall.c: Use C++ exception handling. * dwarf-index-write.c: Use C++ exception handling. * dwarf-index-cache.c: Use C++ exception handling. * dtrace-probe.c: Use C++ exception handling. * disasm-selftests.c: Use C++ exception handling. * darwin-nat.c: Use C++ exception handling. * cp-valprint.c: Use C++ exception handling. * cp-support.c: Use C++ exception handling. * cp-abi.c: Use C++ exception handling. * corelow.c: Use C++ exception handling. * completer.c: Use C++ exception handling. * compile/compile-object-run.c: Use C++ exception handling. * compile/compile-object-load.c: Use C++ exception handling. * compile/compile-cplus-symbols.c: Use C++ exception handling. * compile/compile-c-symbols.c: Use C++ exception handling. * common/selftest.c: Use C++ exception handling. * common/new-op.c: Use C++ exception handling. * cli/cli-script.c: Use C++ exception handling. * cli/cli-interp.c: Use C++ exception handling. * cli/cli-cmds.c: Use C++ exception handling. * c-varobj.c: Use C++ exception handling. * btrace.c: Use C++ exception handling. * breakpoint.c: Use C++ exception handling. * break-catch-throw.c: Use C++ exception handling. * arch-utils.c: Use C++ exception handling. * amd64-tdep.c: Use C++ exception handling. * ada-valprint.c: Use C++ exception handling. * ada-typeprint.c: Use C++ exception handling. * ada-lang.c: Use C++ exception handling. * aarch64-tdep.c: Use C++ exception handling. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * server.c: Use C++ exception handling. * linux-low.c: Use C++ exception handling. * gdbreplay.c: Use C++ exception handling. |
|
|
Tom Tromey
|
3d6e9d2336 |
Make exceptions use std::string and be self-managing
This changes the exception's "message" member to be a shared_ptr wrapping a std::string. This allows removing the stack of exception messages, because now exceptions will self-destruct when needed. This also adds a noexcept copy constructor and operator= to gdb_exception, plus a "what" method. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * xml-support.c (gdb_xml_parser::parse): Update. * x86-linux-nat.c (x86_linux_nat_target::enable_btrace): Update. * value.c (show_convenience): Update. * unittests/cli-utils-selftests.c (test_number_or_range_parser) (test_parse_flags_qcs): Update. * thread.c (thr_try_catch_cmd): Update. * target.c (target_translate_tls_address): Update. * stack.c (print_frame_arg, read_frame_local, read_frame_arg) (info_frame_command_core, frame_apply_command_count): Update. * rust-exp.y (rust_lex_exception_test): Update. * riscv-tdep.c (riscv_print_one_register_info): Update. * remote.c (remote_target::enable_btrace): Update. * record-btrace.c (record_btrace_enable_warn): Update. * python/py-utils.c (gdbpy_convert_exception): Update. * printcmd.c (do_one_display, print_variable_and_value): Update. * mi/mi-main.c (mi_print_exception): Update. * mi/mi-interp.c (mi_cmd_interpreter_exec): Use SCOPE_EXIT. * mi/mi-cmd-stack.c (list_arg_or_local): Update. * linux-nat.c (linux_nat_target::attach): Update. * linux-fork.c (class scoped_switch_fork_info): Update. * infrun.c (displaced_step_prepare): Update. * infcall.c (call_function_by_hand_dummy): Update. * guile/scm-exception.c (gdbscm_scm_from_gdb_exception): Update. * gnu-v3-abi.c (print_one_vtable): Update. * frame.c (get_prev_frame_always): Update. * f-valprint.c (info_common_command_for_block): Update. * exec.c (try_open_exec_file): Update. * exceptions.c (print_exception, exception_print) (exception_fprintf, exception_print_same): Update. * dwarf2-frame.c (dwarf2_build_frame_info): Update. * dwarf-index-cache.c (index_cache::store) (index_cache::lookup_gdb_index): Update. * darwin-nat.c (maybe_cache_shell): Update. * cp-valprint.c (cp_print_value_fields): Update. * compile/compile-cplus-symbols.c (gcc_cplus_convert_symbol) (gcc_cplus_symbol_address): Update. * compile/compile-c-symbols.c (gcc_convert_symbol) (gcc_symbol_address, generate_c_for_for_one_variable): Update. * common/selftest.c: Update. * common/common-exceptions.h (struct gdb_exception) <message>: Now a std::string. (exception_try_scope_entry, exception_try_scope_exit): Don't declare. (struct exception_try_scope): Remove. (TRY): Don't use exception_try_scope. (struct gdb_exception): Add constructor, operator=. <what>: New method. (struct gdb_exception_RETURN_MASK_ALL) (struct gdb_exception_RETURN_MASK_ERROR) (struct gdb_exception_RETURN_MASK_QUIT): Add constructor. (struct gdb_quit_bad_alloc): Update. * common/common-exceptions.c (exception_none): Change initializer. (struct catcher) <state, exception>: Initialize inline. <prev>: Remove member. (current_catcher): Remove. (catchers): New global. (exceptions_state_mc_init): Simplify. (catcher_pop): Remove. (exceptions_state_mc, exceptions_state_mc_catch): Update. (try_scope_depth, exception_try_scope_entry) (exception_try_scope_exit): Remove. (throw_exception_sjlj): Update. (exception_messages, exception_messages_size): Remove. (throw_it): Simplify. (gdb_exception_sliced_copy): Remove. (throw_exception_cxx): Update. * cli/cli-script.c (script_from_file): Update. * breakpoint.c (insert_bp_location, update_breakpoint_locations): Update. * ada-valprint.c (ada_val_print): Update. * ada-lang.c (ada_to_fixed_type_1, ada_exception_name_addr) (create_excep_cond_exprs): Update. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * server.c (handle_btrace_general_set, handle_qxfer_btrace) (handle_qxfer_btrace_conf, detach_or_kill_for_exit_cleanup) (captured_main, main): Update. * gdbreplay.c (main): Update. |
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Keith Seitz
|
cc1defb1dc |
Allow really large fortran array bounds: TYPE_LENGTH to ULONGEST
This series is revisit of Siddhesh Poyarekar's patch from back in 2012. The last status on the patch is in the following gdb-patches thread: https://sourceware.org/ml/gdb-patches/2012-08/msg00562.html It appears that Tom approved the patch, but Jan had some issues with a compiler error that made the test fail on -m32 test runs. He wrote up a hand-tweaked .S file to deal with it. Siddesh said he would update tests. Then nothing. Siddesh and Jan have both moved on since. The patch originally required a large precursor patch to work. I have whittled this down to/rewritten the bare minimum, and this first patch is the result, changing the type of TYPE_LENGTH to ULONGEST from unsigned int. The majority of the changes involve changing printf format strings to use %s and pulongest instead of %d. gdb/ChangeLog: * ada-lang.c (ada_template_to_fixed_record_type_1): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * ada-typerint.c (ada_print_type): Likewise. * amd64-windows-tdep.c (amd64_windows_store_arg_in_reg): Likewise. * compile/compile-c-support.c (generate_register_struct): Likewise. * gdbtypes.c (recursive_dump_type): Likewise. * gdbtypes.h (struct type) <length>: Change type to ULONGEST. * m2-typeprint.c (m2_array): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * riscv-tdep.c (riscv_type_alignment): Cast second argument to std::min to ULONGEST. * symmisc.c (print_symbol): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * tracepoint.c (info_scope_command): Likewise. * typeprint.c (print_offset_data::update) (print_offset_data::finish): Likewise. * xtensa-tdep.c (xtensa_store_return_value) (xtensa_push_dummy_call): Likewise. |
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Andrew Burgess
|
76055cbe88 |
gdb/riscv: Use default gdbarch methods where possible
Make use of the default gdbarch methods for gdbarch_dummy_id, gdbarch_unwind_pc, and gdbarch_unwind_sp where possible. This change has been tested with no regressions. gdb/ChangeLog: * gdb/riscv-tdep.c (riscv_dummy_id): Delete. (riscv_unwind_pc): Delete. (riscv_unwind_sp): Delete. (riscv_gdbarch_init): Don't register deleted functions with gdbarch. |
|
KONRAD Frederic
|
2988d01ea5 |
(riscv/ada) fix error when calling functions with range argument
Using the gdb.ada/call_pn.exp testcase, and running it by hand on
riscv64-elf, we get the following error:
(gdb) call pn(55)
Could not compute alignment of type
The problem occurs because the parameter's type is a TYPE_CODE_RANGE,
and that type code is not handled by riscv_type_alignment. So this patch
fixes the issue by handling TYPE_CODE_RANGE the same way we handle other
integral types.
gdb/ChangeLog:
* riscv-rdep.c (riscv_type_alignment): Handle TYPE_CODE_RANGE.
Tested on riscv64-elf using AdaCore's testsuite.
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|
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Tom Tromey
|
0747795c08 |
Normalize includes to use common/
This changes all includes to use the form "common/filename.h" rather than just "filename.h". This was written by a script. gdb/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * xtensa-linux-nat.c: Fix common/ includes. * xml-support.h: Fix common/ includes. * xml-support.c: Fix common/ includes. * x86-linux-nat.c: Fix common/ includes. * windows-nat.c: Fix common/ includes. * varobj.h: Fix common/ includes. * varobj.c: Fix common/ includes. * value.c: Fix common/ includes. * valops.c: Fix common/ includes. * utils.c: Fix common/ includes. * unittests/xml-utils-selftests.c: Fix common/ includes. * unittests/utils-selftests.c: Fix common/ includes. * unittests/unpack-selftests.c: Fix common/ includes. * unittests/tracepoint-selftests.c: Fix common/ includes. * unittests/style-selftests.c: Fix common/ includes. * unittests/string_view-selftests.c: Fix common/ includes. * unittests/scoped_restore-selftests.c: Fix common/ includes. * unittests/scoped_mmap-selftests.c: Fix common/ includes. * unittests/scoped_fd-selftests.c: Fix common/ includes. * unittests/rsp-low-selftests.c: Fix common/ includes. * unittests/parse-connection-spec-selftests.c: Fix common/ includes. * unittests/optional-selftests.c: Fix common/ includes. * unittests/offset-type-selftests.c: Fix common/ includes. * unittests/observable-selftests.c: Fix common/ includes. * unittests/mkdir-recursive-selftests.c: Fix common/ includes. * unittests/memrange-selftests.c: Fix common/ includes. * unittests/memory-map-selftests.c: Fix common/ includes. * unittests/lookup_name_info-selftests.c: Fix common/ includes. * unittests/function-view-selftests.c: Fix common/ includes. * unittests/environ-selftests.c: Fix common/ includes. * unittests/copy_bitwise-selftests.c: Fix common/ includes. * unittests/common-utils-selftests.c: Fix common/ includes. * unittests/cli-utils-selftests.c: Fix common/ includes. * unittests/array-view-selftests.c: Fix common/ includes. * ui-file.c: Fix common/ includes. * tui/tui-io.c: Fix common/ includes. * tracepoint.h: Fix common/ includes. * tracepoint.c: Fix common/ includes. * tracefile-tfile.c: Fix common/ includes. * top.h: Fix common/ includes. * top.c: Fix common/ includes. * thread.c: Fix common/ includes. * target/waitstatus.h: Fix common/ includes. * target/waitstatus.c: Fix common/ includes. * target.h: Fix common/ includes. * target.c: Fix common/ includes. * target-memory.c: Fix common/ includes. * target-descriptions.c: Fix common/ includes. * symtab.h: Fix common/ includes. * symfile.c: Fix common/ includes. * stap-probe.c: Fix common/ includes. * spu-linux-nat.c: Fix common/ includes. * sparc-nat.c: Fix common/ includes. * source.c: Fix common/ includes. * solib.c: Fix common/ includes. * solib-target.c: Fix common/ includes. * ser-unix.c: Fix common/ includes. * ser-tcp.c: Fix common/ includes. * ser-pipe.c: Fix common/ includes. * ser-base.c: Fix common/ includes. * selftest-arch.c: Fix common/ includes. * s12z-tdep.c: Fix common/ includes. * rust-exp.y: Fix common/ includes. * rs6000-aix-tdep.c: Fix common/ includes. * riscv-tdep.c: Fix common/ includes. * remote.c: Fix common/ includes. * remote-notif.h: Fix common/ includes. * remote-fileio.h: Fix common/ includes. * remote-fileio.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * record-btrace.c: Fix common/ includes. * python/python.c: Fix common/ includes. * python/py-type.c: Fix common/ includes. * python/py-inferior.c: Fix common/ includes. * progspace.h: Fix common/ includes. * producer.c: Fix common/ includes. * procfs.c: Fix common/ includes. * proc-api.c: Fix common/ includes. * printcmd.c: Fix common/ includes. * ppc-linux-nat.c: Fix common/ includes. * parser-defs.h: Fix common/ includes. * osdata.c: Fix common/ includes. * obsd-nat.c: Fix common/ includes. * nat/x86-linux.c: Fix common/ includes. * nat/x86-linux-dregs.c: Fix common/ includes. * nat/x86-dregs.h: Fix common/ includes. * nat/x86-dregs.c: Fix common/ includes. * nat/ppc-linux.c: Fix common/ includes. * nat/mips-linux-watch.h: Fix common/ includes. * nat/mips-linux-watch.c: Fix common/ includes. * nat/linux-waitpid.c: Fix common/ includes. * nat/linux-ptrace.h: Fix common/ includes. * nat/linux-ptrace.c: Fix common/ includes. * nat/linux-procfs.c: Fix common/ includes. * nat/linux-personality.c: Fix common/ includes. * nat/linux-osdata.c: Fix common/ includes. * nat/linux-namespaces.c: Fix common/ includes. * nat/linux-btrace.h: Fix common/ includes. * nat/linux-btrace.c: Fix common/ includes. * nat/fork-inferior.c: Fix common/ includes. * nat/amd64-linux-siginfo.c: Fix common/ includes. * nat/aarch64-sve-linux-ptrace.c: Fix common/ includes. * nat/aarch64-linux.c: Fix common/ includes. * nat/aarch64-linux-hw-point.h: Fix common/ includes. * nat/aarch64-linux-hw-point.c: Fix common/ includes. * namespace.h: Fix common/ includes. * mips-linux-tdep.c: Fix common/ includes. * minsyms.c: Fix common/ includes. * mi/mi-parse.h: Fix common/ includes. * mi/mi-main.c: Fix common/ includes. * mi/mi-cmd-env.c: Fix common/ includes. * memrange.h: Fix common/ includes. * memattr.c: Fix common/ includes. * maint.h: Fix common/ includes. * maint.c: Fix common/ includes. * main.c: Fix common/ includes. * machoread.c: Fix common/ includes. * location.c: Fix common/ includes. * linux-thread-db.c: Fix common/ includes. * linux-nat.c: Fix common/ includes. * linux-fork.c: Fix common/ includes. * inline-frame.c: Fix common/ includes. * infrun.c: Fix common/ includes. * inflow.c: Fix common/ includes. * inferior.h: Fix common/ includes. * inferior.c: Fix common/ includes. * infcmd.c: Fix common/ includes. * inf-ptrace.c: Fix common/ includes. * inf-child.c: Fix common/ includes. * ia64-linux-nat.c: Fix common/ includes. * i387-tdep.c: Fix common/ includes. * i386-tdep.c: Fix common/ includes. * i386-linux-tdep.c: Fix common/ includes. * i386-linux-nat.c: Fix common/ includes. * i386-go32-tdep.c: Fix common/ includes. * i386-fbsd-tdep.c: Fix common/ includes. * i386-fbsd-nat.c: Fix common/ includes. * guile/scm-type.c: Fix common/ includes. * guile/guile.c: Fix common/ includes. * go32-nat.c: Fix common/ includes. * gnu-nat.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbarch-selftests.c: Fix common/ includes. * gdb_usleep.c: Fix common/ includes. * gdb_select.h: Fix common/ includes. * gdb_bfd.c: Fix common/ includes. * gcore.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * findvar.c: Fix common/ includes. * fbsd-nat.c: Fix common/ includes. * event-top.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * dwarf2read.c: Fix common/ includes. * dwarf2loc.c: Fix common/ includes. * dwarf2-frame.c: Fix common/ includes. * dwarf-index-cache.c: Fix common/ includes. * dtrace-probe.c: Fix common/ includes. * disasm-selftests.c: Fix common/ includes. * defs.h: Fix common/ includes. * csky-tdep.c: Fix common/ includes. * cp-valprint.c: Fix common/ includes. * cp-support.h: Fix common/ includes. * cp-support.c: Fix common/ includes. * corelow.c: Fix common/ includes. * completer.h: Fix common/ includes. * completer.c: Fix common/ includes. * compile/compile.c: Fix common/ includes. * compile/compile-loc2c.c: Fix common/ includes. * compile/compile-cplus-types.c: Fix common/ includes. * compile/compile-cplus-symbols.c: Fix common/ includes. * command.h: Fix common/ includes. * cli/cli-dump.c: Fix common/ includes. * cli/cli-cmds.c: Fix common/ includes. * charset.c: Fix common/ includes. * build-id.c: Fix common/ includes. * btrace.h: Fix common/ includes. * btrace.c: Fix common/ includes. * breakpoint.h: Fix common/ includes. * breakpoint.c: Fix common/ includes. * ax.h: (enum agent_op): Fix common/ includes. * ax-general.c (struct aop_map): Fix common/ includes. * ax-gdb.c: Fix common/ includes. * auxv.c: Fix common/ includes. * auto-load.c: Fix common/ includes. * arm-tdep.c: Fix common/ includes. * arch/riscv.c: Fix common/ includes. * arch/ppc-linux-common.c: Fix common/ includes. * arch/i386.c: Fix common/ includes. * arch/arm.c: Fix common/ includes. * arch/arm-linux.c: Fix common/ includes. * arch/arm-get-next-pcs.c: Fix common/ includes. * arch/amd64.c: Fix common/ includes. * arch/aarch64.c: Fix common/ includes. * arch/aarch64-insn.c: Fix common/ includes. * arch-utils.c: Fix common/ includes. * amd64-windows-tdep.c: Fix common/ includes. * amd64-tdep.c: Fix common/ includes. * amd64-sol2-tdep.c: Fix common/ includes. * amd64-obsd-tdep.c: Fix common/ includes. * amd64-nbsd-tdep.c: Fix common/ includes. * amd64-linux-tdep.c: Fix common/ includes. * amd64-linux-nat.c: Fix common/ includes. * amd64-fbsd-tdep.c: Fix common/ includes. * amd64-fbsd-nat.c: Fix common/ includes. * amd64-dicos-tdep.c: Fix common/ includes. * amd64-darwin-tdep.c: Fix common/ includes. * agent.c: Fix common/ includes. * ada-lang.h: Fix common/ includes. * ada-lang.c: Fix common/ includes. * aarch64-tdep.c: Fix common/ includes. gdb/gdbserver/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * win32-low.c: Fix common/ includes. * win32-i386-low.c: Fix common/ includes. * tracepoint.c: Fix common/ includes. * thread-db.c: Fix common/ includes. * target.h: Fix common/ includes. * symbol.c: Fix common/ includes. * spu-low.c: Fix common/ includes. * server.h: Fix common/ includes. * server.c: Fix common/ includes. * remote-utils.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * nto-x86-low.c: Fix common/ includes. * notif.h: Fix common/ includes. * mem-break.h: Fix common/ includes. * lynx-low.c: Fix common/ includes. * lynx-i386-low.c: Fix common/ includes. * linux-x86-tdesc-selftest.c: Fix common/ includes. * linux-x86-low.c: Fix common/ includes. * linux-low.c: Fix common/ includes. * inferiors.h: Fix common/ includes. * i387-fp.c: Fix common/ includes. * hostio.c: Fix common/ includes. * hostio-errno.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbreplay.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * ax.c: (enum gdb_agent_op): Fix common/ includes. |
|
|
Jim Wilson
|
592d8c0a5d |
RISC-V: Fix wrong use of s0 register name.
s0 is listed as both an int register name and an FP register name. The FP reg name is wrong. This looks like a simple editting error, and has an easy fix. Tested with riscv64-linux build and check, with no regressions. gdb/ * riscv-tdep.c (riscv_freg_feature): Drop s0 name from f8. |
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|
Andrew Burgess
|
113b7b8142 |
gdb/riscv: Split ISA and ABI features
The goal of this commit is to allow RV64 binaries compiled for the 'F'
extension to run on a target that supports both the 'F' and 'D'
extensions.
The 'D' extension depends on the 'F' extension and chapter 9 of the
RISC-V ISA manual implies that running a program compiled for 'F' on
a 'D' target should be fine.
To support this the gdbarch now holds two feature sets, one represents
the features that are present on the target, and one represents the
features requested in the ELF flags.
The existing error checks are relaxed slightly to allow binaries
compiled for 32-bit 'F' extension to run on targets with the 64-bit
'D' extension.
A new set of functions called riscv_abi_{xlen,flen} are added to
compliment the existing riscv_isa_{xlen,flen}, and some callers to the
isa functions now call the abi functions when that is appropriate.
In riscv_call_arg_struct two asserts are removed, these asserts no
longer make sense. The asserts were both like this:
gdb_assert (TYPE_LENGTH (ainfo->type)
<= (cinfo->flen + cinfo->xlen));
And were made in two cases, when passing structures like these:
struct {
integer field1;
float field2;
};
or,
struct {
float field1;
integer field2;
};
When running on an RV64 target which only has 32-bit float then the
integer field could be 64-bits, while if the float field is 32-bits
the overall size of the structure can be 128-bits (with 32-bits of
padding). In this case the assertion would fail, however, the code
isn't incorrect, so its safe to just remove the assertion.
This was tested by running on an RV64IMFDC target using a compiler
configured for RV64IMFC, and comparing the results with those obtained
when using a compiler configured for RV64IMFDC. The only regressions
I see (now) are in gdb.base/store.exp and are related too different
code generation choices GCC makes between the two targets.
Finally, this commit does not make any attempt to support running
binaries compiled for RV32 on an RV64 target, though nothing in here
should prevent that being supported in the future.
gdb/ChangeLog:
* arch/riscv.h (struct riscv_gdbarch_features) <hw_float_abi>:
Delete.
<operator==>: Update with for removed field.
<hash>: Likewise.
* riscv-tdep.h (struct gdbarch_tdep) <features>: Renamed to...
<isa_features>: ...this.
<abi_features>: New field.
(riscv_isa_flen): Update comment.
(riscv_abi_xlen): New declaration.
(riscv_abi_flen): New declaration.
* riscv-tdep.c (riscv_isa_xlen): Update to get answer from
isa_features.
(riscv_abi_xlen): New function.
(riscv_isa_flen): Update to get answer from isa_features.
(riscv_abi_flen): New function.
(riscv_has_fp_abi): Update to get answer from abi_features.
(riscv_call_info::riscv_call_info): Use abi xlen and flen, not isa
xlen and flen.
(riscv_call_info) <xlen, flen>: Update comment.
(riscv_call_arg_struct): Remove invalid assertions
(riscv_features_from_gdbarch_info): Update now hw_float_abi field
is removed.
(riscv_gdbarch_init): Gather isa features and abi features
separately, ensure both match on the gdbarch when reusing an old
gdbarch. Relax an error check to allow 32-bit abi float to run on
a target with 64-bit float hardware.
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Joel Brobecker
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42a4f53d2b |
Update copyright year range in all GDB files.
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files. |
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Andrew Burgess
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74e3300d8a |
gdb/riscv: Prevent buffer overflow in riscv_return_value
The existing code for reading and writing the return value can
overflow the passed in buffers in a couple of situations. This commit
aims to resolve these issues.
The problems were detected using valgrind, here are two examples,
first from gdb.base/structs.exp:
(gdb) p/x fun9()
==31353== Invalid write of size 8
==31353== at 0x4C34153: memmove (vg_replace_strmem.c:1270)
==31353== by 0x632EBB: memcpy (string_fortified.h:34)
==31353== by 0x632EBB: readable_regcache::raw_read(int, unsigned char*) (regcache.c:538)
==31353== by 0x659D3F: riscv_return_value(gdbarch*, value*, type*, regcache*, unsigned char*, unsigned char const*) (riscv-tdep.c:2593)
==31353== by 0x583641: get_call_return_value (infcall.c:448)
==31353== by 0x583641: call_thread_fsm_should_stop(thread_fsm*, thread_info*) (infcall.c:546)
==31353== by 0x59BBEC: fetch_inferior_event(void*) (infrun.c:3883)
==31353== by 0x53890B: check_async_event_handlers (event-loop.c:1064)
==31353== by 0x53890B: gdb_do_one_event() [clone .part.4] (event-loop.c:326)
==31353== by 0x6CA34B: wait_sync_command_done() (top.c:503)
==31353== by 0x584653: run_inferior_call (infcall.c:621)
...
And from gdb.base/call-sc.exp:
(gdb) advance fun
fun () at /gdb/gdb/testsuite/gdb.base/call-sc.c:41
41 return foo;
(gdb) finish
==1968== Invalid write of size 8
==1968== at 0x4C34153: memmove (vg_replace_strmem.c:1270)
==1968== by 0x632EBB: memcpy (string_fortified.h:34)
==1968== by 0x632EBB: readable_regcache::raw_read(int, unsigned char*) (regcache.c:538)
==1968== by 0x659D01: riscv_return_value(gdbarch*, value*, type*, regcache*, unsigned char*, unsigned char const*) (riscv-tdep.c:2576)
==1968== by 0x5891E4: get_return_value(value*, type*) (infcmd.c:1640)
==1968== by 0x5892C4: finish_command_fsm_should_stop(thread_fsm*, thread_info*) (infcmd.c:1808)
==1968== by 0x59BBEC: fetch_inferior_event(void*) (infrun.c:3883)
==1968== by 0x53890B: check_async_event_handlers (event-loop.c:1064)
==1968== by 0x53890B: gdb_do_one_event() [clone .part.4] (event-loop.c:326)
==1968== by 0x6CA34B: wait_sync_command_done() (top.c:503)
...
There are a couple of problems with the existing code, that are all
related.
In riscv_call_arg_struct we incorrectly rounded up the size of a
structure argument. This is unnecessary, and caused GDB to read too
much data into the output buffer when extracting a struct return
value.
In fixing this it became clear that we were incorrectly assuming that
any value being placed in a register (or read from a register) would
always access the entire register. This is not true, for example a
9-byte struct on a 64-bit target places 8-bytes in one registers and
1-byte in a second register (assuming available registers). To handle
this I switch from using cooked_read to cooked_read_part.
Finally, when processing basic integer return value types these are
extended to xlen sized types and then passed in registers. We
currently don't handle this type expansion in riscv_return_value, but
we do in riscv_push_dummy_call. The result is that small integer
types (like char) result in a full xlen sized register being written
into the output buffer, which results in buffer overflow. To address
this issue we now create a value of the expanded type and use this
values contents buffer to hold the return value before casting the
value down to the smaller expected type.
This patch resolves all of the valgrind issues I have found so far,
and causes no regressions. Tested against RV32/64 with and without
floating point support.
gdb/ChangeLog:
* riscv-tdep.c (riscv_call_arg_struct): Don't adjust size before
assigning locations.
(riscv_return_value): Take more care not to read/write outside of
argument buffer. Cast return value between the declared type and
the abi type.
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Andrew Burgess
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ecc82c0590 |
gdb/riscv: Add float status registers to save and restore reggroups
We should save and restore the floating point status registers. This became an issue when testing 32-bit float on a target with 64-bit with the gdb.base/callfuncs.exp test. gdb/ChangeLog: * riscv-tdep.c (riscv_register_reggroup_p): Save and restore fcsr, fflags, and frm registers. |
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Andrew Burgess
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fb44d95af6 |
gdb/riscv: Add gdb to dwarf register number mapping
Provide a mapping between GDB's register numbers and DWARF's register numbers. This resolves some failures that I was seeing on gdb.base/store.exp when running on an rv64imfdc target. gdb/ChangeLog: * riscv-tdep.c (riscv_dwarf_reg_to_regnum): New function. (riscv_gdbarch_init): Register new function with gdbarch. * riscv-tdep.h: New enum to define RISC-V DWARF register numbers. |
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Andrew Burgess
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a96bd1ccc0 |
gdb/riscv: Format CORE_ADDR as a string for printing
Avoid compiler errors caused by trying to print CORE_ADDR using '%ld' format, instead convert to a string and print that instead. gdb/ChangeLog: * riscv-tdep.c (riscv_scan_prologue): Use plongest to format a signed offset as a string. |
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Jim Wilson
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b7c8601a7f |
RISC-V: Correct printing of MSTATUS and MISA.
* riscv-tdep.c (riscv_print_one_register_info): For MSTATUS, add comment for SD field, and correct xlen calculation. For MISA, add comment for MXL field, add call to register_size, and correct base calculation. |
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Andrew Burgess
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4de3d8d066 |
gdb/riscv: Handle passing variadic floating point arguments
This commit fixes some test failures in gdb.base/varargs.exp when running on targets with floating point hardware. Floating point unnamed (variadic) arguments should be passed in integer registers according to the abi. After this commit I see no failures in gdb.base/varargs.exp on 32 or 64 bit targets with floating point hardware. gdb/ChangeLog: * riscv-tdep.c (riscv_call_arg_scalar_float): Unnamed (variadic) arguments are passed in integer registers. (riscv_call_arg_complex_float): Likewise. |
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Andrew Burgess
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69cb29528e |
gdb/riscv: Remove whitespace before #include line
This fixes an ARI warning in riscv-tdep.c that whitespace before a gdb/ChangeLog: * riscv-tdep.c (riscv_register_name): Fix ARI warning by removing leading whitespace before #include line. |
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Andrew Burgess
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90af06793e |
gdb/riscv: Improve logic for when h/w float abi should be used
Currently, if the target announces that it has floating point registers in its target description then GDB assumes that the hardware float ABI should be used. However, there's nothing stopping a user compiling a program for the soft-float abi, and then trying to run this on a target with hardware floating point registers. This commit adjusts the logic that decides if GDB should use the hardware float abi. The primary decision now is based on what the ELF currently being executed says in its headers. If the file was compiled for h/w float abi, then GDB uses h/w float abi, otherwise s/w float is used. If the current BFD is not an ELF then we don't currently have a mechanism for figuring out if the file was compiled for float or not. In this case we disable the h/w float abi. This shouldn't be a problem as, right now, the RISC-V linker can only produce ELFs. If there is NO current BFD (can this happen?) then we will enable h/w float abi if the target has floating point hardware, otherwise, s/w float abi is used. This commit also adds some sanity checking that the features requested in the BFD (xlen and flen) match the target description. For testing I ran the testsuite on a target that returns a target description containing both integer and floating point registers, but used a compiler that didn't have floating point support. Before this commit I would see failures on may tests that made inferior calls using floating point arguments, after this commit, all of these issues are resolved. One example from the testsuite is gdb.base/infcall-nested-structs.exp. gdb/ChangeLog: * riscv-tdep.c (riscv_features_from_gdbarch_info): New function. (riscv_find_default_target_description): Use new function to extract feature from gdbarch_info. (riscv_gdbarch_init): Add error checks for xlen and flen between target description and bfd headers. Be smarter about when we think the hardware floating point abi should be used. |
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Andrew Burgess
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65a4b37326 |
gdb/riscv: Add equality operators to riscv_gdb_features
Add '==' and '!=' operators for the struct riscv_gdb_features, allowing a small simplification. gdb/ChangeLog: * arch/riscv.h (riscv_gdb_features::operator==): New. (riscv_gdb_features::operator!=): New. * riscv-tdep.c (riscv_gdbarch_init): Make use of the inequality operator. |
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Andrew Burgess
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0ff80bf7b9 |
gdb/riscv: Make some target description functions constant
Makes more of the interface related to fetching target descriptions constant. gdb/ChangeLog: * arch/riscv.h (riscv_create_target_description): Make return type const. * arch/riscv.c (riscv_create_target_description): Likewise. * riscv-tdep.c (riscv_find_default_target_description): Likewise. |
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Andrew Burgess
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b5ffee3181 |
gdb/riscv: Add target description support
This commit adds target description support for riscv. I've used the split feature approach for specifying the architectural features, and the CSR feature is auto-generated from the riscv-opc.h header file. If the target doesn't provide a suitable target description then GDB will build one by looking at the bfd headers. This commit does not implement target description creation for the Linux or FreeBSD native targets, both of these will need to add read_description methods into their respective target classes, which probe the target features, and then call riscv_create_target_description to build a suitable target description. Until this is done Linux and FreeBSD will get the same default target description based on the bfd that bare-metal targets get. I've only added feature descriptions for 32 and 64 bit registers, 128 bit registers (for RISC-V) are not supported in the reset of GDB yet. This commit removes the special reading of the MISA register in order to establish the target features, this was only used for figuring out the f-register size, and even that wasn't done consistently. We now rely on the target to tell us what size of registers it has (or look in the BFD as a last resort). The result of this is that we should now support RV64 targets with 32-bit float, though I have not extensively tested this combination yet. * Makefile.in (ALL_TARGET_OBS): Add arch/riscv.o. (HFILES_NO_SRCDIR): Add arch/riscv.h. * arch/riscv.c: New file. * arch/riscv.h: New file. * configure.tgt: Add cpu_obs list of riscv, move riscv-tdep.o into this list, and add arch/riscv.o. * features/Makefile: Add riscv features. * features/riscv/32bit-cpu.c: New file. * features/riscv/32bit-cpu.xml: New file. * features/riscv/32bit-csr.c: New file. * features/riscv/32bit-csr.xml: New file. * features/riscv/32bit-fpu.c: New file. * features/riscv/32bit-fpu.xml: New file. * features/riscv/64bit-cpu.c: New file. * features/riscv/64bit-cpu.xml: New file. * features/riscv/64bit-csr.c: New file. * features/riscv/64bit-csr.xml: New file. * features/riscv/64bit-fpu.c: New file. * features/riscv/64bit-fpu.xml: New file. * features/riscv/rebuild-csr-xml.sh: New file. * riscv-tdep.c: Add 'arch/riscv.h' include. (riscv_gdb_reg_names): Delete. (csr_reggroup): New global. (struct riscv_register_alias): Delete. (struct riscv_register_feature): New structure. (riscv_register_aliases): Delete. (riscv_xreg_feature): New global. (riscv_freg_feature): New global. (riscv_virtual_feature): New global. (riscv_csr_feature): New global. (riscv_create_csr_aliases): New function. (riscv_read_misa_reg): Delete. (riscv_has_feature): Delete. (riscv_isa_xlen): Simplify, just return cached xlen. (riscv_isa_flen): Simplify, just return cached flen. (riscv_has_fp_abi): Update for changes in struct gdbarch_tdep. (riscv_register_name): Update to make use of tdesc_register_name. Look up xreg and freg names in the new globals riscv_xreg_feature and riscv_freg_feature. Don't supply csr aliases here. (riscv_fpreg_q_type): Delete. (riscv_register_type): Use tdesc_register_type in almost all cases, override the returned type in a few specific cases only. (riscv_print_one_register_info): Handle errors reading registers. (riscv_register_reggroup_p): Use tdesc_register_in_reggroup_p for registers that are otherwise unknown to GDB. Also check the csr_reggroup. (riscv_print_registers_info): Remove assert about upper register number, and use gdbarch_register_reggroup_p instead of short-cutting. (riscv_find_default_target_description): New function. (riscv_check_tdesc_feature): New function. (riscv_add_reggroups): New function. (riscv_setup_register_aliases): New function. (riscv_init_reggroups): New function. (_initialize_riscv_tdep): Add calls to setup CSR aliases, and setup register groups. Register new riscv debug variable. * riscv-tdep.h: Add 'arch/riscv.h' include. (struct gdbarch_tdep): Remove abi union, and add riscv_gdbarch_features field. Remove cached quad floating point type, and provide initialisation for double type field. * target-descriptions.c (maint_print_c_tdesc_cmd): Add riscv to the list of targets using the feature based target descriptions. * NEWS: Mention target description support. gdb/doc/ChangeLog: * gdb.texinfo (Standard Target Features): Add RISC-V Features sub-section. |
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Alan Hayward
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cf84fa6bcf |
Pass return_method to _push_dummy_call
gdb/ChangeLog: * aarch64-tdep.c (aarch64_push_dummy_call): Replace arg with return_method. * alpha-tdep.c (alpha_push_dummy_call): Likewise. * amd64-tdep.c (amd64_push_arguments): Likewise. (amd64_push_dummy_call): Likewise. * amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise. * arc-tdep.c (arc_push_dummy_call): Likewise. * arm-tdep.c (arm_push_dummy_call): Likewise. * avr-tdep.c (avr_push_dummy_call): Likewise. * bfin-tdep.c (bfin_push_dummy_call): Likewise. * cris-tdep.c (cris_push_dummy_call): Likewise. * csky-tdep.c (csky_push_dummy_call): Likewise. * frv-tdep.c (frv_push_dummy_call): Likewise. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. * gdbarch.sh (gdbarch_push_dummy_call): Replace arg with return_method. * h8300-tdep.c (h8300_push_dummy_call): Likewise. * hppa-tdep.c (hppa32_push_dummy_call): Likewise. (hppa64_push_dummy_call): Likewise. * i386-darwin-tdep.c (i386_darwin_push_dummy_call): Likewise. * i386-tdep.c (i386_push_dummy_call): Likewise. * ia64-tdep.c (ia64_push_dummy_call): Likewise. * infcall.c (call_function_by_hand_dummy): Likewise. * iq2000-tdep.c (iq2000_push_dummy_call): Likewise. * lm32-tdep.c (lm32_push_dummy_call): Likewise. * m32c-tdep.c (m32c_push_dummy_call): Likewise. * m32r-tdep.c (m32r_push_dummy_call): Likewise. * m68hc11-tdep.c (m68hc11_push_dummy_call): Likewise. * m68k-tdep.c (m68k_push_dummy_call): Likewise. * mep-tdep.c (mep_push_dummy_call): Likewise. * mips-tdep.c (mips_eabi_push_dummy_call): Likewise. (mips_n32n64_push_dummy_call): Likewise. (mips_o32_push_dummy_call): Likewise. (mips_o64_push_dummy_call): Likewise. * mn10300-tdep.c (mn10300_push_dummy_call): Likewise. * msp430-tdep.c (msp430_push_dummy_call): Likewise. * nds32-tdep.c (nds32_push_dummy_call): Likewise. * nios2-tdep.c (nios2_push_dummy_call): Likewise. * or1k-tdep.c (or1k_push_dummy_call): Likewise. * ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Likewise. (ppc64_sysv_abi_push_dummy_call): Likewise. * ppc-tdep.h (ppc_sysv_abi_push_dummy_call): Likewise. (ppc64_sysv_abi_push_dummy_call): Likewise. * riscv-tdep.c (riscv_push_dummy_call): Likewise. * rl78-tdep.c (rl78_push_dummy_call): Likewise. * rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise. * rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise. * rx-tdep.c (rx_push_dummy_call): Likewise. * s390-tdep.c (s390_push_dummy_call): Likewise. * score-tdep.c (score_push_dummy_call): Likewise. * sh-tdep.c (sh_push_dummy_call_fpu): Likewise. (sh_push_dummy_call_nofpu): Likewise. * sparc-tdep.c (sparc32_store_arguments): Likewise. (sparc32_push_dummy_call): Likewise. * sparc64-tdep.c (sparc64_store_arguments): Likewise. (sparc64_push_dummy_call): Likewise. * spu-tdep.c (spu_push_dummy_call): Likewise. * tic6x-tdep.c (tic6x_push_dummy_call): Likewise. * tilegx-tdep.c (tilegx_push_dummy_call): Likewise. * v850-tdep.c (v850_push_dummy_call): Likewise. * vax-tdep.c (vax_push_dummy_call): Likewise. * xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise. * xtensa-tdep.c (xtensa_push_dummy_call): Likewise. |
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Jim Wilson
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8b2d40cbba |
RISC-V: Fix unnamed arg alignment in registers.
For riscv64-linux target, second half of fix for FAIL: gdb.base/gnu_vector.exp: call add_various_floatvecs Unnamed arguments with 2*XLEN alignment are passed in aligned register pairs. gdb/ * riscv-tdep.c (struct riscv_arg_info): New field is_unnamed. (riscv_call_arg_scalar_int): If unnamed arg with twice xlen alignment, then increment next_regnum if odd. (riscv_arg_location): New arg is_unnamed. Set ainfo->is_unnamed. (riscv_push_dummy_call): New local ftype. Call check_typedef to set function type. Pass new arg to riscv_arg_location based on function type. (riscv_return_value): Pass new arg to riscv_arg_location. |