binutils-gdb.git
15 months agoall: sync recent ff/pi/lf updates
Dmitry Selyutin [Sun, 28 May 2023 22:04:58 +0000 (01:04 +0300)]
all: sync recent ff/pi/lf updates

15 months agosvp64: mark RA0 operands; introduce RT0 operand
Dmitry Selyutin [Sun, 28 May 2023 22:04:58 +0000 (01:04 +0300)]
svp64: mark RA0 operands; introduce RT0 operand

15 months agoppc: support ffadds instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:58 +0000 (01:04 +0300)]
ppc: support ffadds instruction

15 months agoppc: support fdmadds instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:58 +0000 (01:04 +0300)]
ppc: support fdmadds instruction

15 months agoppc: support ffnmadds instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support ffnmadds instruction

15 months agoppc: support ffnmsubs instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support ffnmsubs instruction

15 months agoppc: support ffmadds instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support ffmadds instruction

15 months agoppc: support ffmsubs instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support ffmsubs instruction

15 months agoppc: support minmax aliases
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support minmax aliases

15 months agoppc: support minmax instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support minmax instruction

15 months agoppc: support maddedus instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support maddedus instruction

15 months agoppc: support dsrd instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support dsrd instruction

15 months agoppc: support dsld instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: support dsld instruction

15 months agoppc-opc.c: place new instructions at SFFS level
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc-opc.c: place new instructions at SFFS level

15 months agosvp64: sync specifiers
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
svp64: sync specifiers

15 months agoppc/svp64: support optional operands disassembly
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: support optional operands disassembly

15 months agoppc/svp64: disassemble branch mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble branch mode

15 months agoppc/svp64: disassemble CR op mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble CR op mode

15 months agoppc/svp64: disassemble ld/st idx mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble ld/st idx mode

15 months agoppc/svp64: disassemble ld/st imm mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble ld/st imm mode

15 months agoppc/svp64: disassemble normal mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble normal mode

15 months agoppc/svp64: disassemble SVP64 operands
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble SVP64 operands

15 months agoppc/svp64: disassemble SVP64 name
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: disassemble SVP64 name

15 months agoppc/svp64: obtain SVP64 disassembly context
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: obtain SVP64 disassembly context

15 months agoppc/svp64: share SVP64 context via libopcodes
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: share SVP64 context via libopcodes

15 months agoppc/svp64: introduce SVP64 opcode lookup
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc/svp64: introduce SVP64 opcode lookup

15 months agoppc: decouple print_insn_powerpc_opcode routine
Dmitry Selyutin [Sun, 28 May 2023 22:04:57 +0000 (01:04 +0300)]
ppc: decouple print_insn_powerpc_opcode routine

15 months agoppc/svp64: reuse md_parse_name in md_operand
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: reuse md_parse_name in md_operand

15 months agoppc/svp64: introduce alias for 1<<%r3 predicate
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: introduce alias for 1<<%r3 predicate

15 months agoppc/svp64: allow predicate macro expansion
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: allow predicate macro expansion

15 months agoppc/svp64: introduce SVP64 name parser
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: introduce SVP64 name parser

15 months agoppc/svp64: allow w/dw/sw macro expansion
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: allow w/dw/sw macro expansion

15 months agoppc/svp64: remap operands and build instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: remap operands and build instructions

15 months agoppc/svp64: support SVP64 vectors
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support SVP64 vectors

15 months agoppc: refactor assembly logic
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc: refactor assembly logic

15 months agoppc/svp64: validate and fix modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: validate and fix modes

15 months agoppc/svp64: validate SVP64 context
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: validate SVP64 context

15 months agoppc/svp64: support crm mode
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support crm mode

15 months agoppc/svp64: support mr/mrr modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support mr/mrr modes

15 months agoppc/svp64: support ff/pr modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support ff/pr modes

15 months agoppc/svp64: support zz/dz/sz specifier
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support zz/dz/sz specifier

15 months agoppc/svp64: support sat specifier
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support sat specifier

15 months agoppc/svp64: support sea specifier
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support sea specifier

15 months agoppc/svp64: support els specifier
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support els specifier

15 months agoppc/svp64: support w/dw/sw modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support w/dw/sw modes

15 months agoppc/svp64: support vec2/vec3/vec4 modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support vec2/vec3/vec4 modes

15 months agoppc/svp64: support m/dm/sm modes
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: support m/dm/sm modes

15 months agoppc/svp64: introduce svp64_decode stub
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: introduce svp64_decode stub

15 months agoppc/svp64: setup SVP64 opcodes table
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: setup SVP64 opcodes table

15 months agoopcodes: introduce SVP64 sources
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
opcodes: introduce SVP64 sources

15 months agoopcodes: introduce SVP64 headers
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
opcodes: introduce SVP64 headers

15 months agoppc/svp64: introduce svp64_assemble stub
Dmitry Selyutin [Sun, 28 May 2023 22:04:56 +0000 (01:04 +0300)]
ppc/svp64: introduce svp64_assemble stub

15 months agoppc: share pd_reg definition via libopcodes
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc: share pd_reg definition via libopcodes

15 months agoppc/svp64: support shadd/shadduw instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support shadd/shadduw instructions

15 months agoppc/svp64: support divmod2du instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support divmod2du instruction

17 months agoppc/svp64: support maddedu instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support maddedu instruction

17 months agoppc/svp64: support fptrans instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support fptrans instructions

17 months agoppc/svp64: support bmask instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support bmask instruction

17 months agoppc/svp64: support absd instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support absd instructions

17 months agoppc/svp64: support cprop instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support cprop instructions

17 months agoppc/svp64: support avgadd instructions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support avgadd instructions

17 months agoppc/svp64: support fishmv instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support fishmv instruction

17 months agoppc/svp64: support fmvis instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc/svp64: support fmvis instruction

17 months agoppc/svp64: support svshape2 instruction
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +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/

17 months agoppc: decouple SFFS and SVP64 extensions
Dmitry Selyutin [Sun, 28 May 2023 22:04:55 +0000 (01:04 +0300)]
ppc: decouple SFFS and SVP64 extensions

17 months ago[readline] Fix double free in _rl_scxt_dispose
Tom de Vries [Sun, 28 May 2023 08:17:57 +0000 (10:17 +0200)]
[readline] Fix double free in _rl_scxt_dispose

Consider the following scenario.  We start gdb in TUI mode:
...
$ gdb -q -tui
...
and type ^R which gives us the reverse-isearch prompt in the cmd window:
...
(reverse-i-search)`':
...
and then type "foo", right-arrow-key, and ^C.

In TUI mode, gdb uses a custom rl_getc_function tui_getc.

When pressing the right-arrow-key, tui_getc:
- attempts to scroll the TUI src window, without any effect, and
- returns 0.

The intention of returning 0 is mentioned here in tui_dispatch_ctrl_char:
...
  /* We intercepted the control character, so return 0 (which readline
     will interpret as a no-op).  */
  return 0;
...

However, after this 0 is returned by the rl_read_key () call in
_rl_search_getchar, _rl_read_mbstring is called, which incorrectly interprets
0 as the first part of an utf-8 multibyte char, and tries to read the next
char.

In this state, the ^C takes effect and we run into a double free because
_rl_isearch_cleanup is called twice.

Both these issues need fixing independently, though after fixing the first we
no longer trigger the second.

The first issue is caused by the subtle difference between:
- a char array containing 0 chars, which is zero-terminated, and
- a char array containing 1 char, which is zero.

In mbrtowc terms, this is the difference between:
...
  mbrtowc (&wc, "", 0, &ps);
...
which returns -2, and:
...
  mbrtowc (&wc, "", 1, &ps);
...
which returns 0.

Note that _rl_read_mbstring calls _rl_get_char_len without passing it an
explicit length parameter, and consequently it cannot distinguish between the
two, and defaults to the "0 chars" choice.

Note that the same problem doesn't exist in _rl_read_mbchar.

Fix this by defaulting to the "1 char" choice in _rl_get_char_len:
...
-  if (_rl_utf8locale && l > 0 && UTF8_SINGLEBYTE(*src))
+  if (_rl_utf8locale && l >= 0 && UTF8_SINGLEBYTE(*src))
...

The second problem happens when the call to _rl_search_getchar in
_rl_isearch_callback returns.  At that point _rl_isearch_cleanup has already
been called from the signal handler, but we proceed regardless, using a cxt
pointer that has been freed.

Fix this by checking for "RL_ISSTATE (RL_STATE_ISEARCH)" after the call to
_rl_search_getchar:
...
   c = _rl_search_getchar (cxt);
+  if (!RL_ISSTATE (RL_STATE_ISEARCH))
+    return 1;
...

Tested on x86_64-linux.

Approved-By: Chet Ramey <chet.ramey@case.edu>
PR tui/30056
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30056

17 months agoAutomatic date update in version.in
GDB Administrator [Sun, 28 May 2023 00:00:41 +0000 (00:00 +0000)]
Automatic date update in version.in

18 months ago[PR ld/22263][PR ld/25694] RISC-V: Avoid dynamic TLS relocs in PIE.
Nelson Chu [Thu, 4 May 2023 09:08:50 +0000 (17:08 +0800)]
[PR ld/22263][PR ld/25694] RISC-V: Avoid dynamic TLS relocs in PIE.

Lots of targets already fixed the TEXTREL problem for TLS in PIE.

* For PR ld/25694,
In the check_reloc, refer to spare and loongarch, they don't need to reserve
any local dynamic reloc for TLS LE in pie/pde, and similar to other targets.
So it seems like riscv was too conservative to estimate the TLS LE before.
Just break and don't goto static_reloc for TLS LE in pie/pde can fix the
TEXTREL problem.

* For PR ld/22263,
The risc-v code for TLS GD/IE in the relocate_section seems same as MIPS port.
So similar to MIPS, pr22570, commits 9143e72c6d4d and 1cb83cac9a89, it seems
also the right way to do the same thing for risc-v.

On risc-v, fixes
FAIL: Build pr22263-1

RISC-V haven't supported the TLS transitions, so will need the same fix (use
bfd_link_dll) in the future.

bfd/
PR ld/22263
PR ld/25694
* elfnn-riscv.c (riscv_elf_check_relocs): Replace bfd_link_pic with
bfd_link_dll for TLS IE.  Don't need to reserve the local dynamic
relocation for TLS LE in pie/pde, and report error in pic just like
before.
(riscv_elf_relocate_section): For TLS GD/IE, use bfd_link_dll rather
than !bfd_link_pic in determining the dynamic symbol index.  Avoid
the index of -1.

18 months agoAutomatic date update in version.in
GDB Administrator [Sat, 27 May 2023 00:00:37 +0000 (00:00 +0000)]
Automatic date update in version.in

18 months agoEnhance objdump's --private option so that it can display the contents of PE format...
Nick Clifton [Fri, 26 May 2023 14:41:20 +0000 (15:41 +0100)]
Enhance objdump's --private option so that it can display the contents of PE format files.

  * od-pe.c: New file: Dumps fields in PE format headers.
  * configure.ac (od_vectors): Add objdump_private_desc_pe for PE format targets. (od_files): Add od-pe for PE format targets.
  * configure: Regenerate.
  * Makefile.am (CFILES): Add od-pe.c (EXTRA_objdump_SOURCE): Likewise.
  * Makefile.in: Generate.
  * NEWS: Mention the new feature.
  * doc/binutils.texi: Document the new support.
  * objdump.c (wide_output): Change from local to global.
  * objdump.h (wide_output): Prototype. (objdump_private_desc_pe): Prototype.
  * testsuite/binutils-all/objdump.exp: Add a test of the new feature.

18 months agoRemove duplicate definition
Andreas Schwab [Thu, 25 May 2023 17:43:37 +0000 (19:43 +0200)]
Remove duplicate definition

* coff/pe.h (IMAGE_FILE_MACHINE_AMD64): Remove duplicate
definition.  Alphabetize.

18 months agox86: fix disassembler build after 1a3b4f90bc5f
Jan Beulich [Fri, 26 May 2023 10:44:52 +0000 (12:44 +0200)]
x86: fix disassembler build after 1a3b4f90bc5f

In commit 1a3b4f90bc5f ("x86: convert two pointers to (indexing)
integers") I neglected the fact that compilers may warn about comparing
ptrdiff_t (signed long) with size_t (unsigned long) values. Since just
before we've checked that the value is positive, simply add a cast
(despite my dislike for casts).

18 months ago[gdb/testsuite] Add test-case gdb.tui/color-prompt.exp
Tom de Vries [Fri, 26 May 2023 10:30:24 +0000 (12:30 +0200)]
[gdb/testsuite] Add test-case gdb.tui/color-prompt.exp

Add a test-case that sets a prompt with color in TUI.

The line containing the prompt is shown by get_line_with_attrs as follows:
...
<fg:31>(gdb) <fg:default>
...

The 31 means red, but only for foreground colors, for background colors 41
means red.

Make this more readable by using color names for both foreground and
background, such that we have instead:
....
<fg:red>(gdb) <fg:default>
...

Tested on x86_64-linux.

18 months ago[gdb/testsuite] Add invisible and blinking attributes in tuiterm
Tom de Vries [Fri, 26 May 2023 10:30:24 +0000 (12:30 +0200)]
[gdb/testsuite] Add invisible and blinking attributes in tuiterm

I noticed curses using the invisible and blinking attributes.

Add these in tuiterm.

Tested on x86_64-linux.

18 months ago[gdb/testsuite] Fix reverse attribute in tuiterm
Tom de Vries [Fri, 26 May 2023 10:30:24 +0000 (12:30 +0200)]
[gdb/testsuite] Fix reverse attribute in tuiterm

I noticed in proc Term::_csi_m arguments that while parameters 7 and 27 are
supposed to set the reverse attribute to 1 and 0, in fact it's set to 1 in
both cases:
...
      7 {
set _attrs(reverse) 1
    }
  ...
    27 {
set _attrs(reverse) 1
      }
...

Fix this and add a regression test in gdb.tui/tuiterm.exp.

Tested on x86_64-linux.

18 months agoiamcu: suppress tests which can't possibly work
Jan Beulich [Fri, 26 May 2023 08:14:34 +0000 (10:14 +0200)]
iamcu: suppress tests which can't possibly work

With neither --32 nor --64 passed to gas, advanced features like AVX
aren't available without explicitly enabling them.

18 months agox86-64: improve gas diagnostic when no 32-bit target is configured
Jan Beulich [Fri, 26 May 2023 08:14:13 +0000 (10:14 +0200)]
x86-64: improve gas diagnostic when no 32-bit target is configured

Make this similar to --64 and --x32: Check whether a suitable target
exists.

18 months agox86-64: conditionalize tests using --32
Jan Beulich [Fri, 26 May 2023 08:13:53 +0000 (10:13 +0200)]
x86-64: conditionalize tests using --32

Using this option doesn't really work when no support for any 32-bit
target was configured in (as is the case for at least cloudabi and
rdos).

18 months agox86: split gas testsuite .exp file
Jan Beulich [Fri, 26 May 2023 08:13:29 +0000 (10:13 +0200)]
x86: split gas testsuite .exp file

The set of 32-bit-only and 64-bit-only tests has grown quite large. In
particular when one's after only the results for the 64-bit set, having
them live in a separate .exp file is easier / faster.

18 months agox86: convert two pointers to (indexing) integers
Jan Beulich [Fri, 26 May 2023 07:53:51 +0000 (09:53 +0200)]
x86: convert two pointers to (indexing) integers

This in particular reduces the number of pointers to non-const that we
have (and that could potentially be used for undue modification of
state). As a result, fetch_code()'s 2nd parameter can then also become
pointer-to-const.

18 months agox86: disassembling over-long insns
Jan Beulich [Fri, 26 May 2023 07:53:25 +0000 (09:53 +0200)]
x86: disassembling over-long insns

The present way of dealing with them - misusing MAX_MNEM_SIZE, which has
nothing to do with insn length - leads to inconsistent results. Since we
allow for up to MAX_CODE_LENGTH - 1 prefix bytes (which then could be
followed by another MAX_CODE_LENGTH "normal" insn bytes until we're done
decoding), size the_buffer[] accordingly.

Move struct dis_private down to be able to use MAX_CODE_LENGTH without
moving its #define. While doing this also alter the order to have the
potentially large array last.

18 months agox86: use fixed-width type for codep and friends
Jan Beulich [Fri, 26 May 2023 07:53:01 +0000 (09:53 +0200)]
x86: use fixed-width type for codep and friends

This first of all removes a dependency on bfd_byte and unsigned char
being the same types. It further eliminates the need to mask by 0xff
when fetching values (which wasn't done fully consistently anyway),
improving code legibility.

While there, where possible add const.

18 months agox86: figure braces aren't really part of mnemonics
Jan Beulich [Fri, 26 May 2023 07:42:03 +0000 (09:42 +0200)]
x86: figure braces aren't really part of mnemonics

Instead they're separators for pseudo-prefixes. Don't insert them in
mnemonic_chars[], handling them explicitly in parse_insn() instead. Note
that this eliminates the need for another separator after a pseudo-
prefix. While maybe not overly interesting for a following real
mnemonic, I view this as quite desirable between multiple successive
pseudo-prefixes (bringing things in line with the other use of figure
braces in AVX512's zeroing-masking).

Drop the unused is_mnemonic_char() at this occasion.

18 months agox86: de-duplicate operand_special_chars[] wrt extra_symbol_chars[]
Jan Beulich [Fri, 26 May 2023 07:41:41 +0000 (09:41 +0200)]
x86: de-duplicate operand_special_chars[] wrt extra_symbol_chars[]

Having to add characters to both arrays can easily lead to oversights.
Consuming extra_symbol_chars[] when populating operand_chars[] also
allows to drop two special cases in md_begin().

Constify operand_special_chars[] at this occasion.

18 months agosframe/doc: minor improvements for readability
Indu Bhagat [Fri, 26 May 2023 06:44:15 +0000 (23:44 -0700)]
sframe/doc: minor improvements for readability

libsframe/
* sframe-spec.texi: Cosmetic fixes.

18 months agolibsframe: revisit sframe_find_fre API
Indu Bhagat [Fri, 26 May 2023 06:44:09 +0000 (23:44 -0700)]
libsframe: revisit sframe_find_fre API

Inspite of implementing a rather simple functionality, this function was
relatively difficult to follow, and maintain.  Some changes are done now
to address that - refactor the function and use better names to make it
more readable.

The changes to the implementation do not cause any change in the
contract of the API.

libsframe/
        * sframe.c (sframe_fre_get_end_ip_offset): to here...
        (sframe_find_fre): Refactor some bits from...

18 months agolibsframe: use const char * consistently for immutable FRE buffers
Indu Bhagat [Fri, 26 May 2023 06:44:02 +0000 (23:44 -0700)]
libsframe: use const char * consistently for immutable FRE buffers

libsframe/
        * sframe.c (sframe_decode_fre): Use const char * datatype when
handling buffer containing the FREs.
(sframe_fre_get_end_ip_offset): Likewise.
(sframe_find_fre): Likewise.
(sframe_decoder_get_fre): Likewise.

18 months agolibsframe: use uint8_t data type for FRE info related stubs
Indu Bhagat [Fri, 26 May 2023 06:43:45 +0000 (23:43 -0700)]
libsframe: use uint8_t data type for FRE info related stubs

libsframe/
* sframe.c: Use uint8_t for FRE offset count and FRE offset
size.  Use uint8_t for FRE info word as well.

18 months agoPR22263 ld test
Alan Modra [Fri, 26 May 2023 02:21:57 +0000 (11:51 +0930)]
PR22263 ld test

A number of targets that I test regularly fail the "Build pr22263-1"
test for various reasons.

arm-linux-gnueabi: "undefined reference to `__aeabi_read_tp'"
ia64-linux-gnu: "Explicit stops are ignored in auto mode"
m68k-linux-gnu: "undefined reference to `__m68k_read_tp'"
microblaze-linux-gnu: "undefined reference to `__tls_get_addr'"
nios2-linux-gnu, s390-linux-gnu and sh4-linux-gnu have a tprel reloc in .got
riscv64-linux-gnu has a dynamic relocation in text

So only riscv really fails the pr.  The rest fail due to test issues
or lack of a linker optimisation.  Lack of an optimisation isn't
really a fail, but it's worth keeping the test to ensure those
optimisations don't regress.  The xfail targets may not be an
exhaustive list.  This just tidies test results for those for which I
have cross compilers installed.

PR 22263
* testsuite/ld-elf/tls.exp: Split pr22263 test into two parts,
one to check for -z text errors, the other to check tprel
linker optimisation.  Supply needed symbols and assembler flags.
xfail the linker optimisation on targets known to fail.

18 months agoMake MI commands const-correct
Tom Tromey [Fri, 10 May 2019 22:09:35 +0000 (16:09 -0600)]
Make MI commands const-correct

I've had this patch for a while now and figured I'd update it and send
it.  It changes MI commands to use a "const char * const" for their
argv parameter.

Regression tested on x86-64 Fedora 36.

Acked-By: Simon Marchi <simon.marchi@efficios.com>
18 months agoAutomatic date update in version.in
GDB Administrator [Fri, 26 May 2023 00:00:41 +0000 (00:00 +0000)]
Automatic date update in version.in

18 months agoFix scoped_value_mark not working with empty value chain
Ciaran Woodward [Thu, 25 May 2023 11:14:15 +0000 (11:14 +0000)]
Fix scoped_value_mark not working with empty value chain

The scoped_value_mark helper class was setting its internal
mark value to NULL to indicate that the value chain had already
been freed to mark.

However, value_mark() also returns NULL if the value chain is
empty at the time of call.

This lead to the situation that if the value chain was empty
at the time the scoped_value_mark was created, the class
would not correctly clean up the state when it was destroyed,
because it believed it had already been freed.

I noticed this because I was setting a watchpoint very early
in my debug session, and it was becoming a software watchpoint
rather than hardware. Running any command that called evaluate()
beforehand (such as 'x 0') would mean that a hardware watchpoint
was correctly used. After some careful examination of the
differences in execution, I noticed that values were being freed
later in the 'bad case', which lead me to notice the issue with
scoped_value_mark.

18 months agogdb: remove breakpoint_pointer_iterator
Simon Marchi [Tue, 9 May 2023 14:08:51 +0000 (10:08 -0400)]
gdb: remove breakpoint_pointer_iterator

Remove the breakpoint_pointer_iterator layer.  Adjust all users of
all_breakpoints and all_tracepoints to use references instead of
pointers.

Change-Id: I376826f812117cee1e6b199c384a10376973af5d
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdbsupport: make filtered_iterator::operator* return the same thing as underlying...
Simon Marchi [Mon, 8 May 2023 18:49:33 +0000 (14:49 -0400)]
gdbsupport: make filtered_iterator::operator* return the same thing as underlying iterator

This is the same idea as the previous patch, but for filtered_iterator.
Without this patch, I would see this when applying the patch that
removes reference_to_pointer_iterator from breakpoint_range:

      CXX    breakpoint.o
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c: In function ‘void download_tracepoint_locations()’:
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:11007:41: error: cannot allocate an object of abstract type ‘breakpoint’
    11007 |   for (breakpoint &b : all_tracepoints ())
          |                                         ^
    In file included from /home/smarchi/src/binutils-gdb/gdb/gdbthread.h:26,
                     from /home/smarchi/src/binutils-gdb/gdb/infrun.h:21,
                     from /home/smarchi/src/binutils-gdb/gdb/gdbarch.h:28,
                     from /home/smarchi/src/binutils-gdb/gdb/arch-utils.h:23,
                     from /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:21:
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.h:619:8: note:   because the following virtual functions are pure within ‘breakpoint’:
      619 | struct breakpoint : public intrusive_list_node<breakpoint>
          |        ^~~~~~~~~~
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:250:1: note:     ‘virtual breakpoint::~breakpoint()’
      250 | breakpoint::~breakpoint ()
          | ^~~~~~~~~~

Change-Id: I05285ff27d21cb0ab80cba392ec4e959167e3cd7
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdbsupport: make basic_safe_iterator::operator* return the same thing as underlying...
Simon Marchi [Mon, 8 May 2023 18:49:33 +0000 (14:49 -0400)]
gdbsupport: make basic_safe_iterator::operator* return the same thing as underlying iterator

Using the following patch that removes the reference_to_pointer_iterator
from breakpoint_range, I would get:

      CXX    breakpoint.o
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c: In function ‘void breakpoint_program_space_exit(program_space*)’:
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:3030:46: error: cannot allocate an object of abstract type ‘breakpoint’
     3030 |   for (breakpoint &b : all_breakpoints_safe ())
          |                                              ^
    In file included from /home/smarchi/src/binutils-gdb/gdb/gdbthread.h:26,
                     from /home/smarchi/src/binutils-gdb/gdb/infrun.h:21,
                     from /home/smarchi/src/binutils-gdb/gdb/gdbarch.h:28,
                     from /home/smarchi/src/binutils-gdb/gdb/arch-utils.h:23,
                     from /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:21:
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.h:619:8: note:   because the following virtual functions are pure within ‘breakpoint’:
      619 | struct breakpoint : public intrusive_list_node<breakpoint>
          |        ^~~~~~~~~~
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:250:1: note:     ‘virtual breakpoint::~breakpoint()’
      250 | breakpoint::~breakpoint ()
          | ^~~~~~~~~~

This is because the operator* method of the basic_safe_iterator iterator
wrapper returns a value_type.  So, even if the method of the underlying
iterator (breakpoint_iterator, an intrusive_list iterator) returns a
`breakpoint &`, the method of the wrapper returns a `breakpoint`.

I think it would make sense for iterator wrappers such as
basic_safe_iterator to return the exact same thing as the iterator they
wrap.  At least, it fixes my problem.

Change-Id: Ibbcd390ac03d2fb6ae4854923750c8d7c3c04e8a
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdb: link breakpoints with intrusive_list
Simon Marchi [Tue, 9 May 2023 14:04:23 +0000 (10:04 -0400)]
gdb: link breakpoints with intrusive_list

Change-Id: I043d8d6f3dd864d80d5088f6ffc2c098337249ea
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdb: remove bp_location_pointer_iterator
Simon Marchi [Wed, 10 May 2023 15:30:34 +0000 (11:30 -0400)]
gdb: remove bp_location_pointer_iterator

Remove the bp_location_pointer_iterator layer.  Adjust all users of
breakpoint::locations to use references instead of pointers.

Change-Id: Iceed34f5e0f5790a9cf44736aa658be6d1ba1afa
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdb: use intrusive_list for breakpoint locations
Simon Marchi [Thu, 18 May 2023 17:56:00 +0000 (13:56 -0400)]
gdb: use intrusive_list for breakpoint locations

Replace the hand-maintained linked lists of breakpoint locations with
and intrusive list.

 - Remove breakpoint::loc, add breakpoint::m_locations.

 - Add methods for the various manipulations that need to be done on the
   location list, while maintaining reasonably good encapsulation.

 - bp_location currently has a default constructor because of one use
   in hoist_existing_locations.  hoist_existing_locations now returns a
   bp_location_list, and doesn't need the default-constructor
   bp_location anymore, so remove the bp_location default constructor.

 - I needed to add a call to clear_locations in delete_breakpoint to
   avoid a use-after-free.

 - Add a breakpoint::last_loc method, for use in
   set_breakpoint_condition.

bp_location_range uses reference_to_pointer_iterator, so that all
existing callers of breakpoint::locations don't need to change right
now.  It will be removed in the next patch.

The rest of the changes are to adapt the call sites to use the new
methods, of breakpoint::locations, rather than breakpoint::loc directly.

Change-Id: I25f7ee3d66a4e914a0540589ac414b3b820b6e70
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdbsupport: add missing increment/decrement operators to reference_to_pointer_iterator
Simon Marchi [Wed, 10 May 2023 16:03:13 +0000 (12:03 -0400)]
gdbsupport: add missing increment/decrement operators to reference_to_pointer_iterator

Using the following patch, I would get this build failure:

      CXX    breakpoint.o
    In file included from /usr/include/c++/13.1.1/bits/stl_algobase.h:66,
                     from /usr/include/c++/13.1.1/bits/hashtable_policy.h:36,
                     from /usr/include/c++/13.1.1/bits/hashtable.h:35,
                     from /usr/include/c++/13.1.1/bits/unordered_map.h:33,
                     from /usr/include/c++/13.1.1/unordered_map:41,
                     from /usr/include/c++/13.1.1/functional:63,
                     from /home/smarchi/src/binutils-gdb/gdb/../gdbsupport/ptid.h:35,
                     from /home/smarchi/src/binutils-gdb/gdb/../gdbsupport/common-defs.h:206,
                     from /home/smarchi/src/binutils-gdb/gdb/defs.h:26,
                     from /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:20:
    /usr/include/c++/13.1.1/bits/stl_iterator_base_funcs.h: In instantiation of ‘constexpr void std::__advance(_BidirectionalIterator&, _Distance, bidirectional_iterator_tag) [with _BidirectionalIterator = reference_to_pointer_iterator<intrusive_list_iterator<bp_location, intrusive_base_node<bp_location> > >; _Distance = long int]’:
    /usr/include/c++/13.1.1/bits/stl_iterator_base_funcs.h:224:21:   required from ‘constexpr void std::advance(_InputIterator&, _Distance) [with _InputIterator = reference_to_pointer_iterator<intrusive_list_iterator<bp_location, intrusive_base_node<bp_location> > >; _Distance = long int]’
    /usr/include/c++/13.1.1/bits/stl_iterator_base_funcs.h:237:19:   required from ‘constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type) [with _InputIterator = reference_to_pointer_iterator<intrusive_list_iterator<bp_location, intrusive_base_node<bp_location> > >; typename iterator_traits<_Iter>::difference_type = long int]’
    /home/smarchi/src/binutils-gdb/gdb/breakpoint.c:1073:19:   required from here
    /usr/include/c++/13.1.1/bits/stl_iterator_base_funcs.h:179:11: error: no match for ‘operator--’ (operand type is ‘reference_to_pointer_iterator<intrusive_list_iterator<bp_location, intrusive_base_node<bp_location> > >’)
      179 |           --__i;
          |           ^~~~~

This points out that while intrusive_list_iterator has an operator--,
the reference_to_pointer_iterator wrapper does not.  I'm not to sure why
the compiler chooses the overload of __advance that accepts a
_BidirectionalIterator, given that reference_to_pointer_iterator can't
be decremented, but adding those operators seems like the right thing to
do in any case, for completeness.

Change-Id: I8e2044b6734fadf0f21093047cf35bb7080dbdc3
Reviewed-By: Andrew Burgess <aburgess@redhat.com>
18 months agogdb: add breakpoint::first_loc methods
Simon Marchi [Tue, 9 May 2023 14:28:09 +0000 (10:28 -0400)]
gdb: add breakpoint::first_loc methods

Add convenience first_loc methods to struct breakpoint (const and
non-const overloads).  A subsequent patch changes the list of locations
to be an intrusive_list and makes the actual list private, so these
spots would need to change from:

    b->loc

to something ugly like:

    *b->locations ().begin ()

That would make the code much heavier and not readable.  There is a
surprisingly big number of places that access the first location of
breakpoints.  Whether this is correct, or these spots fail to consider
the possibility of multi-location breakpoints, I don't know.  But
anyhow, I think that using this instead:

 b->first_loc ()

conveys the intention better than the other two forms.

Change-Id: Ibbefe3e4ca6cdfe570351fe7e2725f2ce11d1e95
Reviewed-By: Andrew Burgess <aburgess@redhat.com>