binutils-gdb.git
19 months agoppc/svp64: disassemble normal mode specifiers svp64-ng
Dmitry Selyutin [Fri, 23 Sep 2022 12:15:43 +0000 (15:15 +0300)]
ppc/svp64: disassemble normal mode specifiers

19 months agoppc/svp64: disassemble SVP64 operands
Dmitry Selyutin [Thu, 22 Sep 2022 10:48:36 +0000 (13:48 +0300)]
ppc/svp64: disassemble SVP64 operands

19 months agoppc/svp64: disassemble SVP64 name
Dmitry Selyutin [Thu, 22 Sep 2022 12:51:49 +0000 (15:51 +0300)]
ppc/svp64: disassemble SVP64 name

19 months agoppc/svp64: obtain SVP64 disassembly context
Dmitry Selyutin [Mon, 15 Aug 2022 13:34:22 +0000 (16:34 +0300)]
ppc/svp64: obtain SVP64 disassembly context

19 months agoppc/svp64: share SVP64 context via libopcodes
Dmitry Selyutin [Thu, 28 Jul 2022 13:49:21 +0000 (16:49 +0300)]
ppc/svp64: share SVP64 context via libopcodes

19 months agoppc/svp64: introduce SVP64 opcode lookup
Dmitry Selyutin [Sat, 13 Aug 2022 19:27:52 +0000 (22:27 +0300)]
ppc/svp64: introduce SVP64 opcode lookup

19 months agoppc: decouple print_insn_powerpc_opcode routine
Dmitry Selyutin [Mon, 15 Aug 2022 06:17:28 +0000 (09:17 +0300)]
ppc: decouple print_insn_powerpc_opcode routine

19 months agoppc/svp64: reuse md_parse_name in md_operand
Dmitry Selyutin [Sun, 24 Jul 2022 19:04:32 +0000 (22:04 +0300)]
ppc/svp64: reuse md_parse_name in md_operand

19 months agoppc/svp64: introduce alias for 1<<%r3 predicate
Dmitry Selyutin [Sun, 24 Jul 2022 18:19:10 +0000 (21:19 +0300)]
ppc/svp64: introduce alias for 1<<%r3 predicate

19 months agoppc/svp64: allow predicate macro expansion
Dmitry Selyutin [Sun, 24 Jul 2022 07:01:45 +0000 (10:01 +0300)]
ppc/svp64: allow predicate macro expansion

19 months agoppc/svp64: introduce SVP64 name parser
Dmitry Selyutin [Wed, 13 Jul 2022 12:22:56 +0000 (15:22 +0300)]
ppc/svp64: introduce SVP64 name parser

19 months agoppc/svp64: allow w/dw/sw macro expansion
Dmitry Selyutin [Sat, 9 Jul 2022 13:47:54 +0000 (16:47 +0300)]
ppc/svp64: allow w/dw/sw macro expansion

19 months agoppc/svp64: remap operands and build instructions
Dmitry Selyutin [Tue, 5 Jul 2022 19:30:40 +0000 (22:30 +0300)]
ppc/svp64: remap operands and build instructions

19 months agoppc/svp64: support SVP64 vectors
Dmitry Selyutin [Sun, 24 Jul 2022 13:18:29 +0000 (16:18 +0300)]
ppc/svp64: support SVP64 vectors

19 months agoppc: refactor assemling logic
Dmitry Selyutin [Sun, 19 Jun 2022 19:14:58 +0000 (22:14 +0300)]
ppc: refactor assemling logic

19 months agoppc/svp64: validate and fix modes
Dmitry Selyutin [Sun, 19 Jun 2022 17:59:19 +0000 (20:59 +0300)]
ppc/svp64: validate and fix modes

19 months agoppc/svp64: inroduce mode and bc fields
Dmitry Selyutin [Sun, 19 Jun 2022 17:27:12 +0000 (20:27 +0300)]
ppc/svp64: inroduce mode and bc fields

19 months agoppc/svp64: validate SVP64 context
Dmitry Selyutin [Sun, 19 Jun 2022 16:59:00 +0000 (19:59 +0300)]
ppc/svp64: validate SVP64 context

19 months agoppc/svp64: determine instruction Rc mode
Dmitry Selyutin [Mon, 25 Jul 2022 19:22:15 +0000 (22:22 +0300)]
ppc/svp64: determine instruction Rc mode

19 months agoppc/svp64: determine instruction type
Dmitry Selyutin [Mon, 25 Jul 2022 19:21:38 +0000 (22:21 +0300)]
ppc/svp64: determine instruction type

19 months agoppc/svp64: support svm mode
Dmitry Selyutin [Mon, 25 Jul 2022 19:17:12 +0000 (22:17 +0300)]
ppc/svp64: support svm mode

19 months agoppc/svp64: support crm mode
Dmitry Selyutin [Mon, 25 Jul 2022 19:16:19 +0000 (22:16 +0300)]
ppc/svp64: support crm mode

19 months agoppc/svp64: support mrr mode
Dmitry Selyutin [Mon, 25 Jul 2022 19:15:25 +0000 (22:15 +0300)]
ppc/svp64: support mrr mode

19 months agoppc/svp64: support mr mode
Dmitry Selyutin [Mon, 25 Jul 2022 19:14:29 +0000 (22:14 +0300)]
ppc/svp64: support mr mode

19 months agoppc/svp64: support ff/pr modes
Dmitry Selyutin [Sun, 19 Jun 2022 11:33:15 +0000 (14:33 +0300)]
ppc/svp64: support ff/pr modes

19 months agoppc/svp64: support w/dw/sw modes
Dmitry Selyutin [Sun, 19 Jun 2022 08:06:19 +0000 (11:06 +0300)]
ppc/svp64: support w/dw/sw modes

19 months agoppc/svp64: support vec2/vec3/vec4 modes
Dmitry Selyutin [Sun, 10 Jul 2022 06:30:03 +0000 (09:30 +0300)]
ppc/svp64: support vec2/vec3/vec4 modes

19 months agoppc/svp64: support m/dm/sm modes
Dmitry Selyutin [Sun, 19 Jun 2022 07:33:44 +0000 (10:33 +0300)]
ppc/svp64: support m/dm/sm modes

19 months agoppc/svp64: introduce svp64_decode stub
Dmitry Selyutin [Sun, 19 Jun 2022 06:01:35 +0000 (09:01 +0300)]
ppc/svp64: introduce svp64_decode stub

19 months agoppc/svp64: setup SVP64 opcodes table
Dmitry Selyutin [Sat, 18 Jun 2022 20:20:11 +0000 (23:20 +0300)]
ppc/svp64: setup SVP64 opcodes table

19 months agoopcodes: introduce SVP64 sources
Dmitry Selyutin [Sat, 18 Jun 2022 19:38:36 +0000 (22:38 +0300)]
opcodes: introduce SVP64 sources

19 months agoopcodes: introduce SVP64 headers
Dmitry Selyutin [Sat, 18 Jun 2022 19:38:22 +0000 (22:38 +0300)]
opcodes: introduce SVP64 headers

19 months agoppc/svp64: introduce svp64_assemble stub
Dmitry Selyutin [Sat, 18 Jun 2022 17:49:30 +0000 (20:49 +0300)]
ppc/svp64: introduce svp64_assemble stub

19 months agoppc: share pd_reg definition via libopcodes
Dmitry Selyutin [Wed, 29 Jun 2022 11:18:38 +0000 (14:18 +0300)]
ppc: share pd_reg definition via libopcodes

19 months agoppc/svp64: support svshape2 instruction
Dmitry Selyutin [Thu, 8 Sep 2022 17:38:29 +0000 (20:38 +0300)]
ppc/svp64: support svshape2 instruction

https://libre-soc.org/openpower/sv/
https://libre-soc.org/openpower/sv/remap/#svshape
https://libre-soc.org/openpower/sv/remap/#svshape2
https://libre-soc.org/openpower/isa/simplev/

19 months agoRISC-V: Set EF_RISCV_TSO also on .option arch
Tsukasa OI [Wed, 21 Sep 2022 06:23:55 +0000 (06:23 +0000)]
RISC-V: Set EF_RISCV_TSO also on .option arch

This is a minor fix to commit 96462b012988d35ebb1137a2ad9fd0a96547d79a
("RISC-V: Implement Ztso extension").  Currently, it sets EF_RISCV_TSO ELF
flag when initial ISA string contains the 'Ztso' extension.  However, GAS
has a way to update the ISA string: ".option arch".

When the architecture is updated by ".option arch", EF_RISCV_RVC ELF flag
is set when the 'C' extension is detected.  Analogously, this commit sets
the EF_RISCV_TSO when the 'Ztso' extension is detected.

gas/ChangeLog:

* config/tc-riscv.c (s_riscv_option): Set TSO ELF flag if the
'Ztso' extension is specified via ".option arch" directive.

19 months agoPR29573, addr2line doesn't display file/line for local symbols
Alan Modra [Wed, 21 Sep 2022 05:24:49 +0000 (14:54 +0930)]
PR29573, addr2line doesn't display file/line for local symbols

The DWARF standard is clear that DW_AT_linkage_name is optional.
Compilers may not provide the attribute on functions and variables,
even though the language mangles names.  g++ does not for local
variables and functions.  Without DW_AT_linkage_name, mangled object
file symbols can't be directly matched against the source-level
DW_AT_name in DWARF info.  One possibility is demangling the object
file symbols, but that comes with its own set of problems:
1) A demangler might not be available for the compiler/language.
2) Demangling doesn't give the source function name as stored in
   DW_AT_name.  Class and template parameters must be stripped at
   least.

So this patch takes a simpler approach.  A symbol matches DWARF info
if the DWARF address matches the symbol address, and if the symbol
name contains the DWARF name as a sub-string.  Very likely the name
matching is entirely superfluous.

PR 29573
* dwarf.c (lookup_symbol_in_function_table): Match a symbol
containing the DWARF source name as a substring.
(lookup_symbol_in_variable_table): Likewise.
(_bfd_dwarf2_find_nearest_line_with_alt): If stash_find_line_fast
returns false, fall back to comp_unit_find_line.

19 months agodwarf2.c: simplify best_fit_len tests
Alan Modra [Wed, 21 Sep 2022 05:17:31 +0000 (14:47 +0930)]
dwarf2.c: simplify best_fit_len tests

* dwarf2.c (lookup_address_in_function_table): Simplify
best_fit_len test.
(info_hash_lookup_funcinfo): Likewise.
(lookup_symbol_in_function_table): Likewise, also reorder tests
and check "file" is set.
(lookup_symbol_in_variable_table): Reorder tests.

19 months agodwarf2.c: mangle_style
Alan Modra [Wed, 21 Sep 2022 05:15:44 +0000 (14:45 +0930)]
dwarf2.c: mangle_style

non_mangled incorrectly returned "true" for Ada.  Correct that, and
add a few more non-mangled entries.  Return a value suitable for
passing to cplus_demangle to control demangling.

* dwarf2.c: Include demangle.h.
(mangle_style): Rename from non_mangled.  Return DMGL_* value
to suit lang.  Adjust all callers.

19 months agodwarf2.c remove varinfo and funcinfo sec field
Alan Modra [Wed, 21 Sep 2022 05:15:06 +0000 (14:45 +0930)]
dwarf2.c remove varinfo and funcinfo sec field

The "sec" field in these structures is only set and used in lookup
functions.  It always starts off as NULL.  So the only possible effect
of the field is to modify the return of the lookup, which was its
purpose back in 2005 when HJ fixed PR990.  Since then we solved the
problem of relocatable object files with the fix for PR2338, so this
field is now redundant.

* dwarf.c (struct funcinfo, struct varinfo): Remove "sec" field.
(lookup_symbol_in_function_table): Don't set or test "sec".
(lookup_symbol_in_variable_table): Likewise.
(info_hash_lookup_funcinfo, info_hash_lookup_varinfo): Likewise.

19 months agoconfigure: Pass CPPFLAGS_FOR_BUILD to subdirs
Tsukasa OI [Wed, 14 Sep 2022 12:28:02 +0000 (12:28 +0000)]
configure: Pass CPPFLAGS_FOR_BUILD to subdirs

Because CPPFLAGS_FOR_BUILD is used in some subdirectories (through
bfd/warning.m4), not AC_SUBSTing the variable causes minor issues.

Fortunately, it didn't cause severe errors but error messages related to
@CPPFLAGS_FOR_BUILD@ (not AC_SUBSTed CPPFLAGS_FOR_BUILD variable passed
to subdirectories through Makefile) remain in config.log.

To avoid invalid invocation of preprocessor for build environment, we
need to set proper CPPFLAGS_FOR_BUILD (may be empty) and pass it to
subdirectories that need it.  This is what this commit does.

ChangeLog:

* configure.ac: Pass CPPFLAGS_FOR_BUILD to subdirectories.
* configure: Regenerate.

19 months agoRISC-V: Implement Ztso extension
Shihua [Tue, 20 Sep 2022 09:45:04 +0000 (17:45 +0800)]
RISC-V: Implement Ztso extension

This patch support ZTSO extension. It will turn on the tso flag for elf_flags
once we have enabled Ztso extension.  This is intended to implement v0.1 of
the proposed specification which can be found in Chapter 25 of,
https://github.com/riscv/riscv-isa-manual/releases/download/draft-20220723-10eea63/riscv-spec.pdf.

bfd\ChangeLog:

        * elfnn-riscv.c (_bfd_riscv_elf_merge_private_bfd_data): Set TSO flag.
        * elfxx-riscv.c: Add Ztso's arch.

binutils\ChangeLog:

        * readelf.c (get_machine_flags): Set TSO flag.

gas\ChangeLog:

        * config/tc-riscv.c (riscv_set_tso): Ditto.
        (riscv_set_arch): Ditto.
        * testsuite/gas/riscv/ztso.d: New test.

include\ChangeLog:

        * elf/riscv.h (EF_RISCV_TSO): Ditto.

19 months agoRISC-V: Always generate R_RISCV_CALL_PLT reloc for call in assembler.
Nelson Chu [Wed, 14 Sep 2022 02:25:44 +0000 (10:25 +0800)]
RISC-V: Always generate R_RISCV_CALL_PLT reloc for call in assembler.

Since we have the same behaviors of CALL and CALL_PLT relocs in linker for now,
https://github.com/bminor/binutils-gdb/commit/3b1450b38c644f99aa2e211747b428b9f8d15cca

And the psabi already deprecate the CALL reloc,
https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a0dced85018d7a0ec17023c9389cbd70b1dbc1b0

Therefore, we should always generate R_RISCV_CALL_PLT reloc for call, even if
it has @plt postfix.  I believe LLVM (https://reviews.llvm.org/D132530) already
support this, so GNU as should do the same thing.

gas/
* config/tc-riscv.c (riscv_ip): Always generate CALL_PLT reloc for
call, even if it has @plt postfix.
* testsuite/gas/riscv/no-relax-reloc.d: Updated CALL to CALL_PLT.
* testsuite/gas/riscv/relax-reloc.d: Likewise.
ld/
* testsuite/ld-riscv-elf/variant_cc-r.d: Updated CALL to CALL_PLT.

19 months agoAutomatic date update in version.in
GDB Administrator [Wed, 21 Sep 2022 00:00:13 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months agoRe: PowerPC64 pcrel got relocs against local symbols
Alan Modra [Tue, 20 Sep 2022 23:36:29 +0000 (09:06 +0930)]
Re: PowerPC64 pcrel got relocs against local symbols

The last patch wasn't all that shiny.  There are rather a lot more
relocations that can hit the assertion in md_apply_fix if the symbol
is local or absolute.  Fix them all.

* config/tc-ppc.c (ppc_force_relocation): Add all relocs that
expect a symbol in md_apply_fix.  Remove tls pcrel relocs
already covered in general tls match range.

19 months agolooping in alpha_vms_slurp_relocs
Alan Modra [Mon, 19 Sep 2022 01:07:57 +0000 (10:37 +0930)]
looping in alpha_vms_slurp_relocs

The direct cause for the looping was failing to test for error return
from _bfd_vms_get_object_record inside a while(1) loop.  Fix that.
Also record status of first alpha_vms_slurp_relocs call and return
that for all subsequent calls.  (The object format has one set of
relocation records for all sections.)  If the first call fails, all
others should too.

* vms-alpha.c (struct vms_private_data_struct): Make reloc_done
a tri-state int.
(alpha_vms_slurp_relocs): Set reloc_done to 1 on success, -1 on
failure.  Return that status on subsequent calls.  Check
_bfd_vms_get_object_record return status.
(alpha_vms_get_reloc_upper_bound): Return status from
alpha_vms_slurp_relocs.
(alpha_vms_write_exec): Exclude sections with contents NULL due
to previous errors from layout, and don't try to write them.

19 months agoppc/svp64: test setvl ms operand
Dmitry Selyutin [Tue, 20 Sep 2022 21:26:50 +0000 (00:26 +0300)]
ppc/svp64: test setvl ms operand

19 months agoMake stdin_event_handler static
Tom Tromey [Fri, 26 Aug 2022 22:48:24 +0000 (16:48 -0600)]
Make stdin_event_handler static

I noticed that stdin_event_handler is only used in event-top.c, so
this patch changes it to be 'static'.

19 months agoConstify some target_so_ops instances
Tom Tromey [Mon, 8 Aug 2022 17:00:50 +0000 (11:00 -0600)]
Constify some target_so_ops instances

This changes some target_so_ops instances to be const.  This makes
their use a little more obvious (they can't be mutated) and also
allows for the removal of some initialization code.

19 months agoMove solib_ops into gdbarch
Tom Tromey [Mon, 8 Aug 2022 16:41:43 +0000 (10:41 -0600)]
Move solib_ops into gdbarch

This changs solib_ops to be an ordinary gdbarch value and updates all
the uses.  This removes a longstanding FIXME and makes the code
somewhat cleaner as well.

19 months agoRemove current_target_so_ops
Tom Tromey [Mon, 8 Aug 2022 16:14:53 +0000 (10:14 -0600)]
Remove current_target_so_ops

current_target_so_ops is only set in a single place.  It seems better
to simply remove it.

19 months agogdb/testsuite: add a debuginfod-support.exp helper library
Andrew Burgess [Wed, 7 Sep 2022 11:34:00 +0000 (12:34 +0100)]
gdb/testsuite: add a debuginfod-support.exp helper library

We currently have a single test for GDB's debuginfod support, this is
gdb.debuginfod/fetch_src_and_symbols.exp, this script does all the
setup, starts debuginfod, and then does the testing.

This commit tries to split the existing script in two, there is a new
library lib/debuginfod-support.exp, which contains a helper functions
related to running debuginfod tests.  All the code in the new library
is basically copied from the existing test case (which is why I
retained the copyright date range on the new library), with some minor
adjustments to try and make the code a little more generic.

One change I made, for example, is the library offers functions to
shut down debuginfod, previously we just relied on expect shutting
down debuginfod when dejagnu completed.

The existing test script is updated to make use of the new library
code, and this test is still passing for me.  The only change in the
test results is a single test where I changed the name to remove the
port number from the test name - the port number can change from run
to run, so could make it hard to compare test results.

I have also done a little light house keeping on the original test
script, updating and adding new comments, and making use of
proc_with_prefix in a couple of places.

19 months agoLoongArch: Set macro SUB_SEGMENT_ALIGN to 0.
liuzhensong [Thu, 4 Aug 2022 06:49:40 +0000 (14:49 +0800)]
LoongArch: Set macro SUB_SEGMENT_ALIGN to 0.

19 months agoStop strip from complaining about empty note sections when stripping a binary for...
Nick Clifton [Tue, 20 Sep 2022 10:46:32 +0000 (11:46 +0100)]
Stop strip from complaining about empty note sections when stripping a binary for a second time.

* objcopy.c (copy_object): Do not issue a warning message when
encountering empty .gnu.build.attribute sections.

19 months agoNew Serbian translations for various binutils sub-directories.
Nick Clifton [Tue, 20 Sep 2022 10:33:16 +0000 (11:33 +0100)]
New Serbian translations for various binutils sub-directories.

19 months agoBug 29580 - typo in warning message: .note.gnu.build-id data size is too bug
Zeke Lu [Tue, 20 Sep 2022 10:19:06 +0000 (11:19 +0100)]
Bug 29580 - typo in warning message: .note.gnu.build-id data size is too bug

19 months agoLoongArch: Fix R_LARCH_IRELATIVE insertion after elf_link_sort_relocs
Xi Ruoyao [Tue, 20 Sep 2022 06:09:30 +0000 (14:09 +0800)]
LoongArch: Fix R_LARCH_IRELATIVE insertion after elf_link_sort_relocs

loongarch_elf_finish_dynamic_symbol is called after elf_link_sort_relocs
if -z combreloc.  elf_link_sort_relocs redistributes the contents of
.rela.* sections those would be merged into .rela.dyn, so the slot for
R_LARCH_IRELATIVE may be out of relplt->contents now.

To make things worse, the boundary check

    dyn < dyn + relplt->size / sizeof (*dyn)

is obviously wrong ("x + 10 < x"? :), causing the issue undetected
during the linking process and the resulted executable suddenly crashes
at runtime.

The issue was found during an attempt to add static-pie support to the
toolchain.

Fix it by iterating through the inputs of .rela.dyn to find the slot.

19 months agoLoongArch: Don't write into GOT for local ifunc
Xi Ruoyao [Tue, 20 Sep 2022 06:09:29 +0000 (14:09 +0800)]
LoongArch: Don't write into GOT for local ifunc

Local ifuncs are always resolved at runtime via R_LARCH_IRELATIVE, so
there is no need to write anything into GOT.  And when we write the GOT
we actually trigger a heap-buffer-overflow: If a and b are different
sections, we cannot access something in b with "a->contents + (offset
from a)" because "a->contents" and "b->contents" are heap buffers
allocated separately, not slices of a large buffer.

So stop writing into GOT for local ifunc now.

19 months agoAutomatic date update in version.in
GDB Administrator [Tue, 20 Sep 2022 00:00:17 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months agogprofng: build documentation only if BUILD_MAN is true
Vladimir Mezentsev [Fri, 16 Sep 2022 20:19:38 +0000 (13:19 -0700)]
gprofng: build documentation only if BUILD_MAN is true

gprofng/ChangeLog
2022-09-16  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

PR gprofng/29476
* gprofng/Makefile.am: Build documentation only if BUILD_MAN is true
* gprofng/Makefile.in: Rebuild.
* gprofng/configure: Rebuild.

19 months agogdb: add ATTRIBUTE_PRINTF to gdb_bfd_error_handler
Enze Li [Mon, 19 Sep 2022 12:43:50 +0000 (20:43 +0800)]
gdb: add ATTRIBUTE_PRINTF to gdb_bfd_error_handler

I see this error when building with clang,

  CXX    gdb_bfd.o
gdb_bfd.c:1180:43: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
  const std::string str = string_vprintf (fmt, ap_copy);
                                          ^~~
1 error generated.

This patch adds missing ATTRIBUTE_PRINTF to fix the error.

Tested on x86_64-linux with gcc 12 and clang 14.

19 months agoAutomatic date update in version.in
GDB Administrator [Mon, 19 Sep 2022 00:00:12 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months agoAutomatic date update in version.in
GDB Administrator [Sun, 18 Sep 2022 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months ago[gdb/symtab] Fix "file index out of range" complaint
Tom de Vries [Sat, 17 Sep 2022 06:22:32 +0000 (08:22 +0200)]
[gdb/symtab] Fix "file index out of range" complaint

With the test-case included in this commit, we run into this FAIL:
...
(gdb) p var^M
During symbol reading: file index out of range^M
$1 = 0^M
(gdb) FAIL: gdb.dwarf2/dw2-no-code-cu.exp: p var with no complaints
...

This is a regression since commit 6d263fe46e0 ("Avoid bad breakpoints with
--gc-sections"), which contains this change in read_file_scope:
...
-  handle_DW_AT_stmt_list (die, cu, fnd, lowpc);
+  if (lowpc != highpc)
+    handle_DW_AT_stmt_list (die, cu, fnd, lowpc);
...

The change intends to avoid a problem with a check in
lnp_state_machine::check_line_address, but also prevents the file and dir
tables from being read, which causes the complaint.

Fix the FAIL by reducing the scope of the "lowpc != highpc" condition to the
call to dwarf_decode_lines in handle_DW_AT_stmt_list.

Tested on x86_64-linux.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29561

19 months agoAutomatic date update in version.in
GDB Administrator [Sat, 17 Sep 2022 00:00:14 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months agoBFD error message suppression test case
Kevin Buettner [Fri, 16 Sep 2022 23:13:30 +0000 (16:13 -0700)]
BFD error message suppression test case

This commit adds a GDB test case which tests GDB's BFD error handler
hook for suppressing output of all but the first identical messages.

See the comment at the beginning of bfd-errors.exp for details about
this new test.

I've tested this test for both 32- and 64-bit ELF files and also
on both little endian and big endian machines.  It also works for
both native and remote targets.  The only major restriction is that
it only works for ELF targets.

19 months agoSuppress printing of superfluous BFD error messages
Kevin Buettner [Fri, 16 Sep 2022 23:13:29 +0000 (16:13 -0700)]
Suppress printing of superfluous BFD error messages

This commit adds a hook to the BFD error handler for suppressing
identical messages which have been output once already.

It's motivated by this Fedora bug...

https://bugzilla.redhat.com/show_bug.cgi?id=2083315

...in which over 900,000 BFD error messages are output when attaching
to firefox.  From the bug report, the messages all say:

BFD: /usr/lib/debug/usr/lib64/firefox/libxul.so-100.0-2.fc35.x86_64.debug: attempt to load strings from a non-string section (number 38)

Since there's no (additional) context which might assist the user in
determining what's wrong, there's really no point in outputting more
than one message.  Of course, if BFD should output some
other/different message, it should be output too, but all future
messages identical to those already output should be suppressed.

For the firefox problem, it turned out that there were only 37
sections, but something was referring to section #38.  I haven't
investigated further to find out how this came to be.

Despite this problem, useful debugging might still be done, especially
if the user doesn't care about debugging the problematic library.

If it turns out that knowing the quantity of messages might be useful,
I've implemented the suppression mechanism by keeping a count of each
identical message.  A new GDB command, perhaps a 'maintenance'
command, could be added to print out each message along with the
count.  I haven't implemented this though because I'm not convinced of
its utility.  Also, the BFD message printer has support for BFD-
specific format specifiers.  The BFD message strings that GDB stores
in its map are sufficient for distinguishing messages from each
other, but are not identical to those output by BFD's default error
handler.  So, that problem would need to be solved too.

19 months ago[gdb/symtab] Handle named DW_TAG_unspecified_type DIE
Tom de Vries [Fri, 16 Sep 2022 15:14:34 +0000 (17:14 +0200)]
[gdb/symtab] Handle named DW_TAG_unspecified_type DIE

With the test-case included in the patch, we run into:
...
(gdb) info types -q std::nullptr_t^M
During symbol reading: unsupported tag: 'DW_TAG_unspecified_type'^M
^M
File /usr/include/c++/7/x86_64-suse-linux/bits/c++config.h:^M
2198:   typedef decltype(nullptr) std::nullptr_t;^M
(gdb) FAIL: gdb.dwarf2/nullptr_t.exp: info types -q std::nullptr_t \
  without complaint
...

Fix the complaint by handling DW_TAG_unspecified_type in new_symbol, and verify
in the test-case using "maint print symbols" that the symbol exists.

Tested on x86_64-linux, with gcc 7.5.0 and clang 13.0.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=17271

19 months ago[gdb/tdep] Fix PowerPC IEEE 128-bit format arg passing
Tom de Vries [Fri, 16 Sep 2022 14:40:56 +0000 (16:40 +0200)]
[gdb/tdep] Fix PowerPC IEEE 128-bit format arg passing

On a powerpc system with gcc 12 built to default to 128-bit IEEE long double,
I run into:
...
(gdb) print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)^M
$8 = 0 + 0i^M
(gdb) FAIL: gdb.base/varargs.exp: print \
  find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)
...

This is due to incorrect handling of the argument in ppc64_sysv_abi_push_param.

Fix this and similar cases, and expand the test-case to test handling of
homogeneous aggregates.

Tested on ppc64le-linux, power 10.

Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>
Tested-by: Carl Love <cel@us.ibm.com>
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29543

19 months ago[gdb/testsuite] Fix gdb.dwarf2/dw2-dir-file-name.exp for aarch64
Tom de Vries [Fri, 16 Sep 2022 14:34:13 +0000 (16:34 +0200)]
[gdb/testsuite] Fix gdb.dwarf2/dw2-dir-file-name.exp for aarch64

[ Another attempt at fixing the problem described in commit cd919f5533c
("[gdb/testsuite] Fix gdb.dwarf2/dw2-dir-file-name.exp"). ]

When running the test-case gdb.dwarf2/dw2-dir-file-name.exp with
aarch64-linux, we run into:
...
(gdb) continue^M
Continuing.^M
^M
Breakpoint 2, compdir_missing__ldir_missing__file_basename () at \
  tmp-dw2-dir-file-name.c:999^M
(gdb) FAIL: gdb.dwarf2/dw2-dir-file-name.exp: \
  compdir_missing__ldir_missing__file_basename: continue to breakpoint: \
  compdir_missing__ldir_missing__file_basename
...

The breakpoint set at compdir_missing__ldir_missing__file_basename_label,
address 0x400608 starts at a line entry:
...
CU: tmp-dw2-dir-file-name.c:
File name                    Line number    Starting address    View    Stmt
tmp-dw2-dir-file-name.c              999            0x400608               x
tmp-dw2-dir-file-name.c             1000            0x40062c               x
tmp-dw2-dir-file-name.c                -            0x40062c
...
and therefore the breakpoint is printed without instruction address.

In contrast, for x86_64-linux, we have the breakpoint printed with instruction
address:
...
(gdb) continue^M
Continuing.^M
^M
Breakpoint 2, 0x004004c1 in compdir_missing__ldir_missing__file_basename () \
  at tmp-dw2-dir-file-name.c:999^M
(gdb) PASS: gdb.dwarf2/dw2-dir-file-name.exp: \
  compdir_missing__ldir_missing__file_basename: continue to breakpoint: \
  compdir_missing__ldir_missing__file_basename
...

The breakpoint set at compdir_missing__ldir_missing__file_basename_label,
address 0x004004c1 doesn't start at a line entry:
...
CU: tmp-dw2-dir-file-name.c:
File name                    Line number    Starting address    View    Stmt
tmp-dw2-dir-file-name.c              999            0x4004bd               x
tmp-dw2-dir-file-name.c             1000            0x4004d3               x
tmp-dw2-dir-file-name.c                -            0x4004d3
...

Fix this by:
- unifying behaviour between the archs by adding an explicit line number entry
  for the address compdir_missing__ldir_missing__file_basename_label, making
  the FAIL reproducible on x86_64-linux.
- expecting the breakpoint to be printed without instruction address.

Tested on x86_64-linux and aarch64-linux.

19 months ago[gdb] Handle pending ^C after rl_callback_read_char
Tom de Vries [Fri, 16 Sep 2022 13:53:47 +0000 (15:53 +0200)]
[gdb] Handle pending ^C after rl_callback_read_char

In completion tests in various test-cases, we've been running into these
"clearing input line" timeouts:
...
(gdb) $cmd^GPASS: gdb.gdb/unittest.exp: tab complete "$cmd"
FAIL: gdb.gdb/unittest.exp: tab complete "$cmd" (clearing input line) (timeout)
...
where $cmd == "maintenance selftest name_that_does_not_exist".

AFAIU, the following scenario happens:
- expect sends "$cmd\t"
- gdb detects the stdin event, and calls rl_callback_read_char until it
  comes to handle \t
- readline interprets the \t as completion, tries to complete, fails to do so,
  outputs a bell (^G)
- expect sees the bell, and proceeds to send ^C
- readline is still in the call to rl_callback_read_char, and stores the
  signal in _rl_caught_signal
- readline returns from the call to rl_callback_read_char, without having
  handled _rl_caught_signal
- gdb goes to wait for the next event
- expect times out waiting for "Quit", the expected reaction for ^C

Fix this by handling pending signals after each call to rl_callback_read_char.

The fix is only available for readline 8.x, if --with-system-readline provides
an older version, then the fix is disabled due to missing function
rl_check_signals.

Tested on x86_64-linux.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=27813

19 months agoPowerPC64 pcrel got relocs against local symbols
Alan Modra [Fri, 16 Sep 2022 08:38:44 +0000 (18:08 +0930)]
PowerPC64 pcrel got relocs against local symbols

Not that anyone would want to indirect via the GOT when an address can
be loaded directly with pla, the following:

 pld 3,x@got@pcrel
x:

leads to "Internal error in md_apply_fix", because the generic parts
of assembler fixup handling convert the fx_pcrel fixup to one without
a symbol.  Stop that happening.

* config/tc-ppc.c (ppc_force_relocation): Add PLT_PCREL34 and
assorted GOT_PCREL34 relocs.

19 months agopdb sanity check block_size
Alan Modra [Thu, 15 Sep 2022 11:15:57 +0000 (20:45 +0930)]
pdb sanity check block_size

* pdb.c (pdb_get_elt_at_index): Only allow block_size to be
512, 1024, 2048, or 4096.

19 months agoRISC-V: Make g imply zmmul extension.
Nelson Chu [Fri, 16 Sep 2022 01:11:52 +0000 (09:11 +0800)]
RISC-V: Make g imply zmmul extension.

bfd/
* elfxx-riscv.c (riscv_implicit_subset): Moved entry of m after g,
so that g can imply zmmul.
gas/
* testsuite/gas/riscv/attribute-01.d: Updated.
* 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-10.d: Likewise.
* testsuite/gas/riscv/march-imply-g.d: Likewise.
* testsuite/gas/riscv/march-imply-unsupported.d: Likewise.

19 months agoAutomatic date update in version.in
GDB Administrator [Fri, 16 Sep 2022 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in

19 months agobfd, binutils, gas: Remove/mark unused variables
Tsukasa OI [Thu, 15 Sep 2022 04:06:09 +0000 (04:06 +0000)]
bfd, binutils, gas: Remove/mark unused variables

Clang generates a warning on unused (technically, written but not read
thereafter) variables.  By the default configuration (with "-Werror"), it
causes a build failure (unless "--disable-werror" is specified).

This commit adds ATTRIBUTE_UNUSED attribute to some of them, which means
they are *possibly* unused (can be used but no warnings occur when
unused) and removes others.

bfd/ChangeLog:

* elf32-lm32.c (lm32_elf_size_dynamic_sections): Mark unused
rgot_count variable.
* elf32-nds32.c (elf32_nds32_unify_relax_group): Remove unused
count variable.
* mmo.c (mmo_scan): Mark unused lineno variable.

binutils/ChangeLog:

* windmc.c (write_rc): Remove unused i variable.

gas/ChangeLog:

* config/tc-riscv.c (riscv_ip): Remove unused argnum variable.

ld/ChangeLog:

* pe-dll.c (generate_reloc): Remove unused bi and page_count
variables.

20 months agogprofng: fix build issues on musl
Vladimir Mezentsev [Wed, 14 Sep 2022 08:11:45 +0000 (01:11 -0700)]
gprofng: fix build issues on musl

gprofng/ChangeLog
2022-09-14  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

PR gprofng/29477
* configure.ac: Set __MUSL_LIBC.
* configure: Rebuild.
* common/config.h.in: Rebuild.
* src/collector_module.h: Fix compiler errors because mmap64, open64,
pwrite64 are macros and getcontext() is absent on musl.
* libcollector/collector.c: Likewise.
* libcollector/hwprofile.c: Likewise.
* libcollector/iolib.c: Likewise.
* libcollector/libcol_util.c: Likewise.
* libcollector/linetrace.c: Likewise.
* libcollector/memmgr.c: Likewise.
* libcollector/profile.c: Likewise.
* libcollector/unwind.c: Likewise.
* libcollector/dispatcher.c: Likewise.
* src/Experiment.cc: Likewise.
* libcollector/collector.h: Use dlsym() because dlvsym() is not defined
on musl.
* libcollector/iotrace.c: Remove interposition of versioned functions.
* libcollector/mmaptrace.c: Likewise.
* libcollector/libcol_util.h: Fix -Wint-to-pointer-cast warnings.
* libcollector/jprofile.c: Likewise.
* libcollector/synctrace.c: Include "collector.h".
* src/Print.cc: Use get_basename() because basename() is not defined
on musl.
* common/hwcdrv.c: Fix -Wformat= warnings.

20 months agoAutomatic date update in version.in
GDB Administrator [Thu, 15 Sep 2022 00:00:13 +0000 (00:00 +0000)]
Automatic date update in version.in

20 months agoBinutils: Readelf testcase failing with clang
Rupesh Potharla [Wed, 14 Sep 2022 09:27:38 +0000 (10:27 +0100)]
Binutils: Readelf testcase failing with clang

* testsuite/binutils-all/readelf.exp (readelf_wi_test): Extend
regexps to allow for output genreated by the Clang compiler.

20 months agolooping in bfd_mach_o_fat_openr_next_archived_file
Alan Modra [Wed, 14 Sep 2022 07:27:42 +0000 (16:57 +0930)]
looping in bfd_mach_o_fat_openr_next_archived_file

mach-o.c doesn't sanity check mach-o-fat archives, making it easy for
fuzzers to create an archive with mach_o_fat_archentry headers that
point to the same offset.  bfd_mach_o_fat_openr_next_archived_file
uses the previous element offset to find its header, and thus the next
element.  If two offsets are the same, any tool reading the archive
will get stuck.  This patch rejects such archives, and any with
overlapping elements.

* mach-o.c (overlap_previous): New function.
(bfd_mach_o_fat_archive_p): Sanity check that elements do not
overlap each other or the file and archive headers.

20 months agoregen pofiles
Alan Modra [Wed, 14 Sep 2022 05:23:21 +0000 (14:53 +0930)]
regen pofiles

20 months agobfd: Stop using -Wstack-usage=262144 when built with Clang
Tsukasa OI [Sat, 10 Sep 2022 17:08:13 +0000 (17:08 +0000)]
bfd: Stop using -Wstack-usage=262144 when built with Clang

Some components of GNU Binutils will pass "-Wstack-usage=262144" when
"GCC >= 5.0" is detected.  However, Clang does not support "-Wstack-usage",
despite that related configuration part in bfd/warning.m4 handles the latest
Clang (15.0.0 as of this writing) as "GCC >= 5.0".

The option "-Wstack-usage" was ignored when the first version of Clang is
released but even this "ignoring" behavior is removed before Clang 4.0.0.
So, if we give Clang "-Wstack-usage=262144", it generates a warning, making
the build failure.

This commit checks "__clang__" macro to prevent adding the option if the
compiler is identified as Clang.

bfd/ChangeLog:

* warning.m4: Stop appending "-Wstack-usage=262144" option when
compiled with Clang.
* configure: Regenerate.

binutils/ChangeLog:

* configure: Regenerate.

gas/ChangeLog:

* configure: Regenerate.

gold/ChangeLog:

* configure: Regenerate.

gprof/ChangeLog:

* configure: Regenerate.

ld/ChangeLog:

* configure: Regenerate.

opcodes/ChangeLog:

* configure: Regenerate.

20 months agoModify ld-ctf test files to suit ARM
Alan Modra [Tue, 13 Sep 2022 22:30:07 +0000 (08:00 +0930)]
Modify ld-ctf test files to suit ARM

The "@" char starts a comment on ARM.

* testsuite/ld-ctf/diag-ctf-version-0.s: Replace @progbits with
%progbits.
* testsuite/ld-ctf/diag-ctf-version-2-unsupported-feature.s: Likewise.
* testsuite/ld-ctf/diag-ctf-version-f.s: Likewise.
* testsuite/ld-ctf/diag-cttname-invalid.s: Likewise.
* testsuite/ld-ctf/diag-cttname-null.s: Likewise.
* testsuite/ld-ctf/diag-cuname.s: Likewise.
* testsuite/ld-ctf/diag-decompression-failure.s: Likewise.
* testsuite/ld-ctf/diag-parlabel.s: Likewise.
* testsuite/ld-ctf/diag-parname.s: Likewise.
* testsuite/ld-ctf/diag-strlen-invalid.s: Likewise.
* testsuite/ld-ctf/diag-unsupported-flag.s: Likewise.
* testsuite/ld-ctf/diag-wrong-magic-number.s: Likewise.

20 months agoasan: som_set_reloc_info heap buffer overflow
Alan Modra [Mon, 12 Sep 2022 09:45:01 +0000 (19:15 +0930)]
asan: som_set_reloc_info heap buffer overflow

Also a bugfix.  The first time the section was read, the contents
didn't supply an addend.

* som.c (som_set_reloc_info): Sanity check offset.  Do process
contents after reading.  Tidy section->contents after freeing.

20 months agoubsan: som_is_space null dereference
Alan Modra [Mon, 12 Sep 2022 09:28:53 +0000 (18:58 +0930)]
ubsan: som_is_space null dereference

On objcopy of fuzzed file.

* som.c (som_write_fixups): Exit loop if space sections all
processed.

20 months agomsan: vms-alpha use-of-uninitialized-value in dst_retrieve_location
Alan Modra [Mon, 12 Sep 2022 09:20:53 +0000 (18:50 +0930)]
msan: vms-alpha use-of-uninitialized-value in dst_retrieve_location

* vms-alpha.c (dst_define_location): Init any unused entries.

20 months agoubsan: arm-dis.c index out of bounds
Alan Modra [Mon, 12 Sep 2022 08:39:24 +0000 (18:09 +0930)]
ubsan: arm-dis.c index out of bounds

We are way off in the weeds with this one, and will be printing
<UNPREDICTABLE> for S > 10.

* arm-dis.c (print_insn_cde): Wrap 'T' value.

20 months agoPR29540, R_PPC64_NONE in .rela.dyn when linking Linux vdso
Alan Modra [Sat, 10 Sep 2022 03:28:44 +0000 (12:58 +0930)]
PR29540, R_PPC64_NONE in .rela.dyn when linking Linux vdso

PR 29540
* elf64-ppc.c (allocate_dynrelocs): Don't alloc space for relocs
against discarded sections.
(ppc64_elf_size_dynamic_sections): Use standard test for discarded
sections.
* elf32-ppc.c (allocate_dynrelocs): Don't alloc space for relocs
against discarded sections.
(ppc_elf_size_dynamic_sections): Use standard test for discarded
sections.

20 months agoAutomatic date update in version.in
GDB Administrator [Wed, 14 Sep 2022 00:00:17 +0000 (00:00 +0000)]
Automatic date update in version.in

20 months agoobjdump: '-S' should trigger search for separate debuginfo.
Aaron Merey [Mon, 12 Sep 2022 22:57:38 +0000 (18:57 -0400)]
objdump: '-S' should trigger search for separate debuginfo.

Add with_source_code to the command line options that trigger
might_need_separate_debug_info and dump_any_debugging.  This helps
'objdump -S' download missing files via debuginfod without the need for
specifying extra command line options like '-L'.

20 months agogdb/testsuite: Update gdb.base/so-impl-ld.exp
Bruno Larsen [Wed, 20 Jul 2022 19:44:37 +0000 (16:44 -0300)]
gdb/testsuite: Update gdb.base/so-impl-ld.exp

gdb.base/so-impl-ld.exp was setup assuming that the compiler would add
epilogue information and that GDB would stop in the } line.  This would
make clang tests fail like so:

 step^M
 solib_main (arg=10000) at ../../../common/git-repos/binutils-gdb/gdb/testsuite/gdb.base/solib1.c:7^M
 7|__  return arg*arg;|__|___/* HERE */^M
 (gdb) PASS: gdb.base/so-impl-ld.exp: step into solib call
 next^M
 main () at ../../../common/git-repos/binutils-gdb/gdb/testsuite/gdb.base/so-impl-ld.c:22^M
 22|_  return 0;^M
 (gdb) FAIL: gdb.base/so-impl-ld.exp: step in solib call
 next^M
 0x00007ffff7cef560 in __libc_start_call_main () from /lib64/libc.so.6^M
 (gdb) FAIL: gdb.base/so-impl-ld.exp: step out of solib call

This patch changes it so solib_main has 2 lines where GDB can stop
regardless of compiler choices, and updates the exp file to
generically deal with unknown number of steps until leaving that
function.

20 months agogdb/testsuite: introduce gdb_step_until
Bruno Larsen [Wed, 20 Jul 2022 19:44:26 +0000 (16:44 -0300)]
gdb/testsuite: introduce gdb_step_until

Currently, GDB's testsuite uses a set amount of step commands to exit
functions. This is a problem if a compiler emits different epilogue
information from gcc, or emits no epilogue information at all. It was
most noticeable if Clang was used to test GDB.

To fix this unreliability, this commit introduces a new proc that will
step the inferior until it is stopped at a line that matches the given
regexp, or until it steps too many times - defined as an optional
argument. If the line is found, it shows up as a single PASS in the
test, and if the line is not found, a single FAIL is emitted.

This patch only introduces this proc, but does not add it to any
existing tests, these will be introduced in the following commit.

20 months agoexplicitly test for stderr in gdb.base/dprintf.exp
Bruno Larsen [Wed, 20 Jul 2022 19:44:36 +0000 (16:44 -0300)]
explicitly test for stderr in gdb.base/dprintf.exp

Not all compilers add stderr debug information when compiling a
program. Clang, for instance, prefers to add nothing from standard
libraries and let an external debug package have this information.
Because of this, gdb.base/dprintf.exp was failing when GDB attempted to
use dprintf as a call to fprintf(stderrr, ...), like this:

 (gdb) PASS: gdb.base/dprintf.exp: call: fprintf: set dprintf style to call
 continue
 Continuing.
 kickoff 1234
 also to stderr 1234
 'stderr' has unknown type; cast it to its declared type
 (gdb) FAIL: gdb.base/dprintf.exp: call: fprintf: 1st dprintf (timeout)

To avoid this false positive, we explicitly test to see if
the compiler has added information about stderr at all, and abort
testing dprintf as an fprintf call if it is unavailable.

20 months agoAdd pdb archive format
Mark Harmstone [Tue, 13 Sep 2022 09:31:05 +0000 (10:31 +0100)]
Add pdb archive format

Resubmitted with changes in
https://sourceware.org/pipermail/binutils/2022-September/122791.html
made.

20 months agogdb/csky rm csky_print_registers_info
Jiangshuai Li [Tue, 13 Sep 2022 06:24:39 +0000 (14:24 +0800)]
gdb/csky rm csky_print_registers_info

The reason for implementing this interface is that we want to print
GPR, PC, EPC, PSR and EPSR when the "info register" command
is executed.

A prev patch has added PC, EPC, PSR and EPSR to reggroup
general_group, the purpose has been achieved, so this function is
no longer required.

20 months agogdb/csky rm csky_memory_insert/remove_breakpoint
Jiangshuai Li [Tue, 13 Sep 2022 06:21:55 +0000 (14:21 +0800)]
gdb/csky rm csky_memory_insert/remove_breakpoint

Software breakpoints are inserted or removed by the gdb stub via
remote protocol, these two functions are no longer needed.

20 months agogdb/csky add unwinder for long branch cases
Jiangshuai Li [Tue, 13 Sep 2022 06:19:26 +0000 (14:19 +0800)]
gdb/csky add unwinder for long branch cases

There are two sequences of instructions for long branch:
1. jmpi [pc+4]    //insn code: 0xeac00001
   .long addr

2. lrw t1, [pc+8] //insn code: 0xea8d0002
   jmp t1         //insn code: 0x7834
   nop            //insn code: 0x6c03
   .long addr

20 months agogdbserver/csky add csky gdbserver support
Jiangshuai Li [Tue, 13 Sep 2022 03:20:54 +0000 (11:20 +0800)]
gdbserver/csky add csky gdbserver support

Add new files:
  gdb/arch/csky.c
  gdb/arch/csky.h
  gdb/features/cskyv2-linux.c
  gdbserver/linux-csky-low.cc

1. In gdb/arch/csky.c file, add function "csky_create_target_description()"
for csky_target::low_arch_setup(). later, it can be used for csky native gdb.

2. In gdb/features/cskyv2-linux.c file, create target_tdesc for csky, include
gprs, pc, hi, lo, float, vector and float control registers.

3. In gdbserver/linux-csky-low.cc file, using PTRACE_GET/SET_RGESET to
get/set registers. The main data structures in asm/ptrace.h are:
struct pt_regs {
    unsigned long   tls;
    unsigned long   lr;
    unsigned long   pc;
    unsigned long   sr;
    unsigned long   usp;

    /*
     * a0, a1, a2, a3:
     * r0, r1, r2, r3
     */
    unsigned long   orig_a0;
    unsigned long   a0;
    unsigned long   a1;
    unsigned long   a2;
    unsigned long   a3;

    /*
     * r4 ~ r13
     */
    unsigned long   regs[10];

    /* r16 ~ r30 */
    unsigned long   exregs[15];

    unsigned long   rhi;
    unsigned long   rlo;
    unsigned long   dcsr;
};

struct user_fp {
    unsigned long   vr[96];
    unsigned long   fcr;
    unsigned long   fesr;
    unsigned long   fid;
    unsigned long   reserved;
};

20 months agoAutomatic date update in version.in
GDB Administrator [Tue, 13 Sep 2022 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in

20 months agoUse checked_static_cast in more places
Tom Tromey [Wed, 17 Aug 2022 17:47:17 +0000 (11:47 -0600)]
Use checked_static_cast in more places

I went through all the uses of dynamic_cast<> in gdb, looking for ones
that could be replaced with checked_static_cast.  This patch is the
result.  Regression tested on x86-64 Fedora 34.