binutils-gdb.git
2 years agogdb/python: make some global variables static
Andrew Burgess [Mon, 25 Oct 2021 16:25:45 +0000 (17:25 +0100)]
gdb/python: make some global variables static

Make a couple of global variables static in python/python.c.  To do
this I had to move the definition of extension_language_python to
later in the file.

There should be no user visible changes after this commit.

2 years agogdb: add assert in remote_target::wait relating to async being off
Andrew Burgess [Mon, 22 Nov 2021 12:30:36 +0000 (12:30 +0000)]
gdb: add assert in remote_target::wait relating to async being off

While working on another patch I ended up in a situation where I had
async mode disabled (with 'maint set target-async off'), but the async
event token got marked anyway.

In this situation GDB was continually calling into
remote_target::wait, however, the async token would never become
unmarked as the unmarking is guarded by target_is_async_p.

We could just unconditionally unmark the token, but that would feel
like just ignoring a bug, so, instead, lets assert that if
!target_is_async_p, then the async token should not be marked.

This assertion would have caught my earlier mistake.

There should be no user visible changes with this commit.

2 years agogdb: simplify remote_target::is_async_p
Andrew Burgess [Wed, 24 Nov 2021 11:36:46 +0000 (11:36 +0000)]
gdb: simplify remote_target::is_async_p

This commit simplifies remote_target::is_async_p by removing the
target_async_permitted check.

In previous commits I have added additional assertions around the
target_async_permitted flag into target.c, as a result we should now
be confident that if target_can_async_p returns false, a target will
never have async mode enabled.  Given this, it should not be necessary
to check target_async_permitted in remote_target::is_async_p, if this
flag is false ::is_async_p should return false anyway.  There is an
assert to this effect in target_is_async_p.

There should be no user visible change after this commit.

2 years agogdb: add asserts in target.c for target_async_permitted
Andrew Burgess [Wed, 17 Nov 2021 09:35:46 +0000 (09:35 +0000)]
gdb: add asserts in target.c for target_async_permitted

The target_async_permitted flag allows a user to override whether a
target can act in async mode or not.  In previous commits I have moved
the checking of this flag out of the various ::can_async_p methods and
into the common target.c code.

In this commit I will add some additional assertions into
target_is_async_p and target_async.  The rules these assertions are
checking are:

  1. A target that returns false for target_can_async_p should never
  become "async enabled", and so ::is_async_p should always return
  false.  This is being checked in target_is_async_p.

  2. GDB should never try to enable async mode for a target that
  returns false for target_can_async_p, this is checked in
  target_async.

There are a few places where we call the ::is_async_p method directly,
in these cases we will obviously not pass through the assert in
target_is_async_p, however, there are also plenty of places where we
do call target_is_async_p so if GDB starts to misbehave we should
catch it quickly enough.

There should be no user visible changes after this commit.

2 years agogdb: hoist target_async_permitted checks into target.c
Andrew Burgess [Wed, 24 Nov 2021 11:36:12 +0000 (11:36 +0000)]
gdb: hoist target_async_permitted checks into target.c

This commit moves the target_async_permitted check out of each targets
::can_async_p method and into the target_can_async_p wrapper function.

I've left some asserts in the two ::can_async_p methods that I
changed, which will hopefully catch any direct calls to these methods
that might be added in the future.

There should be no user visible changes after this commit.

2 years agogdb: introduce a new overload of target_can_async_p
Andrew Burgess [Wed, 24 Nov 2021 11:15:55 +0000 (11:15 +0000)]
gdb: introduce a new overload of target_can_async_p

There are a few places where we call the target_ops::can_async_p
member function directly, instead of using the target_can_async_p
wrapper.

In some of these places this is because we need to ask before the
target has been pushed, and in another location (in target.c) it seems
unnecessary to go through the wrapper when we are already in target.c
code.

However, in the next commit I'd like to hoist some common checks out
of target specific code into target.c.  To achieve this, in this
commit, I introduce a new overload of target_can_async_p which takes a
target_ops pointer, and calls the ::can_async_p method directly.  I
then make use of the new overload where appropriate.

There should be no user visible changes after this commit.

2 years agold/testsuite/ld-elfvsb: correctly test "weak hidden symbol DSO last"
Clément Chigot [Wed, 24 Nov 2021 14:56:51 +0000 (15:56 +0100)]
ld/testsuite/ld-elfvsb: correctly test "weak hidden symbol DSO last"

The test must be done with the shared object and not with the object
file which is already being tested above.

ld/
* testsuite/ld-elfvsb/elfvsb.exp: use .so file in "weak hidden
  symbol DSO last"

2 years ago[gdb/cli] Add "set logging enabled", deprecate "set logging on/off"
Tom de Vries [Thu, 25 Nov 2021 06:49:16 +0000 (07:49 +0100)]
[gdb/cli] Add "set logging enabled", deprecate "set logging on/off"

Before commit 3b6acaee895 "Update more calls to add_prefix_cmd" we had the
following output for "show logging file":
...
$ gdb -q -batch -ex "set trace-commands on" \
    -ex "set logging off" \
    -ex "show logging file" \
    -ex "set logging on" \
    -ex "show logging file"
+set logging off
+show logging file
Future logs will be written to gdb.txt.
+set logging on
+show logging file
Currently logging to "gdb.txt".
...

After that commit we have instead:
...
+set logging off
+show logging file
The current logfile is "gdb.txt".
+set logging on
+show logging file
The current logfile is "gdb.txt".
...

Before the commit, whether logging is enabled or not can be deduced from the
output of the command.  After the commit, the message is unified and it's no
longer clear whether logging is enabled or not.

Fix this by:
- adding a new command "show logging enabled"
- adding a corresponding new command "set logging enabled on/off"
- making the commands "set logging on/off" deprecated aliases of the
  "set logging enabled on/off" command.

Update the docs and testsuite to use "set logging enabled".  Mention the new
and deprecated commands in NEWS.

Tested on x86_64-linux.

2 years ago[gdb/cli] Fix typo in logging overwrite help text
Tom de Vries [Thu, 25 Nov 2021 06:49:16 +0000 (07:49 +0100)]
[gdb/cli] Fix typo in logging overwrite help text

Currently we have:
...
$ gdb -q -batch -ex "help set logging overwrite"
Set whether logging overwrites or appends to the log file.
If set, logging overrides the log file.
...

Fix overrides -> overwrites typo.

2 years agoAutomatic date update in version.in
GDB Administrator [Thu, 25 Nov 2021 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in

2 years agogdb: fix help doc for "set index-cache enabled"
Simon Marchi [Wed, 24 Nov 2021 20:07:51 +0000 (15:07 -0500)]
gdb: fix help doc for "set index-cache enabled"

When implementing this command, I put "help doc" as a placeholder for
the help string, and forgot to update it.  Change it for a real help
string.

Change-Id: Id23c2142c5073dc570bd8a706e9ec6fa8c40eb09

2 years agoRevert (part of) "gdb fix for catch-syscall.exp"
Simon Marchi [Wed, 24 Nov 2021 19:22:43 +0000 (14:22 -0500)]
Revert (part of) "gdb fix for catch-syscall.exp"

This reverts (par of) commit ab198279120fe7937c0970a8bb881922726678f9.
This commit changed what the test expects when catching the execve
syscall based on the behavior seen on a Linux PowerPC machine.  That is,
we get an "entry" event, but no "return" event.  This is not what we get
on Linux with other architectures, though, and it seems like a
PowerPC-specific bug.

Revert the part of the patch related to this, but not the other hunk.

Change-Id: I4248776e4299f10999487be96d4acd1b33639996

2 years agoFix an illegal memory access parsing a corrupt sysroff file.
Nick Clifton [Wed, 24 Nov 2021 17:02:02 +0000 (17:02 +0000)]
Fix an illegal memory access parsing a corrupt sysroff file.

PR 28564
* sysdump.c (getCHARS): Check for an out of bounds read.

2 years agogdb: fix crash when reading ECOFF debug information
Andrew Burgess [Tue, 23 Nov 2021 04:52:15 +0000 (20:52 -0800)]
gdb: fix crash when reading ECOFF debug information

In commit:

  commit 633cf2548bcd3dafe297e21a1dd3574240280d48
  Date:   Wed May 9 15:42:28 2018 -0600

      Remove cleanups from mdebugread.c

the following change was made in the function parse_partial_symbols in
mdebugread.c:

  -  fdr_to_pst = XCNEWVEC (struct pst_map, hdr->ifdMax + 1);
  -  old_chain = make_cleanup (xfree, fdr_to_pst);
  +  gdb::def_vector<struct pst_map> fdr_to_pst_holder (hdr->ifdMax + 1);
  +  fdr_to_pst = fdr_to_pst_holder.data ();

The problem with this change is that XCNEWVEC calls xcalloc, which in
turn calls calloc, and calloc zero initializes the allocated memory.
In contrast, the new line gdb::def_vector<struct pst_map> specifically
does not initialize the underlying memory.

This is a problem because, later on in this same function, we
increment the n_globals field within 'struct pst_map' objects stored
in the vector.  The incrementing is now being done from an
uninitialized starting point.

In this commit we switch from using gdb::def_vector to using
std::vector, this alone should be enough to ensure that the fields are
initialized to zero.

However, for extra clarity, I have also added initial values in the
'struct pst_map' to make it crystal clear how the struct will start
up.

This issue was reported on the mailing list here:

  https://sourceware.org/pipermail/gdb-patches/2021-November/183693.html

Co-Authored-By: Lightning <lightningth@gmail.com>
2 years agoAutomatic date update in version.in
GDB Administrator [Wed, 24 Nov 2021 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in

2 years agoconfigure.ac: Check for the readline.h explicitly
Alexandra Hájková [Thu, 18 Nov 2021 08:49:52 +0000 (03:49 -0500)]
configure.ac: Check for the readline.h explicitly

When readline development package is missing make fails with
"configure: error: system readline is not new enough" which
might be confusing. This patch checks for the readline.h explicitly
and makes make to warn about the missing package.

2 years agoAArch64: Add support for AArch64 EFI (efi-*-aarch64).
Tamar Christina [Tue, 23 Nov 2021 09:36:39 +0000 (09:36 +0000)]
AArch64: Add support for AArch64 EFI (efi-*-aarch64).

This adds support for efi-*-aarch64 by virtue of adding a new PEI target
pei-aarch64-little.  This is not a full target and only exists to support EFI
at this time.

This means that this target does not support relocation processing and is mostly
a container format.  This format has been added to elf based aarch64 targets
such that efi images can be made natively on Linux.

However this target is not valid for use with gas but only with objcopy.

With these changes the resulting file is recognized as an efi image by
third party tools:

>  pecli info hello.efi

Metadata
================================================================================
MD5:            598c32a778b0f0deebe977fef8578c4e
SHA1:           4580121edd5cb4dc40f51b28f171fd15250df84c
SHA256:         3154bd7cf42433d1c957f6bf55a17ad8c57ed41b29df2d485703349fd6ff1d5c
Imphash:
Size:           47561 bytes
Type:           PE32+ executable (EFI application) (stripped to external PDB), for MS Windows
Compile Time:   1970-01-01 00:00:00 (UTC - 0x0       )
Entry point:    0x2000 (section .text)

Sections
================================================================================
Name      RWX  VirtSize   VirtAddr   RawAddr   RawSize   Entropy  md5
.text     R-X  0x5bb0     0x2000     0x400     0x5c00      6.39 551fbc264256a3f387de8a891500ae0d
.reloc    R--  0xc        0x8000     0x6000    0x200       0.02 0c45f6d812d079821c1d54c09ab89e1d
.data     RW-  0x1d88     0x9000     0x6200    0x1e00      4.18 5d1137c09f01289dc62bf754f7290db3
.dynamic  RW-  0xf0       0xb000     0x8000    0x200       0.34 5c94ed3206f05a277e6f04fbf131f131
.rela     R--  0xe58      0xc000     0x8200    0x1000      1.87 8b5c6bc30f3acb7ca7bf2e6789d68519
.dynsym   R--  0x138      0xd000     0x9200    0x200       0.96 bdcf5101da51aadc663ca8859f88138c

Imports
================================================================================

Any magic number is based on the Microsoft PE specification [1].

[1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format

bfd/ChangeLog:

2021-10-21  Tamar Christina  <tamar.christina@arm.com>

PR binutils/26206
* .gitignore (pe-aarch64igen.c): New.
* Makefile.am (pei-aarch64.lo, pe-aarch64igen.lo, pei-aarch64.c,
pe-aarch64igen.c): Add support.
* Makefile.in: Likewise.
* bfd.c (bfd_get_sign_extend_vma): Add pei-aarch64-little.
* coff-aarch64.c: New file.
* coffcode.h (coff_set_arch_mach_hook, coff_set_flags,
coff_write_object_contents) Add aarch64 (aarch64_pei_vec) support.
* config.bfd: Likewise.
* configure: Likewise.
* configure.ac: Likewise.
* libpei.h (GET_OPTHDR_IMAGE_BASE, PUT_OPTHDR_IMAGE_BASE,
GET_OPTHDR_SIZE_OF_STACK_RESERVE, PUT_OPTHDR_SIZE_OF_STACK_RESERVE,
GET_OPTHDR_SIZE_OF_STACK_COMMIT, PUT_OPTHDR_SIZE_OF_STACK_COMMIT,
GET_OPTHDR_SIZE_OF_HEAP_RESERVE, PUT_OPTHDR_SIZE_OF_HEAP_RESERVE,
GET_OPTHDR_SIZE_OF_HEAP_COMMIT, PUT_OPTHDR_SIZE_OF_HEAP_COMMIT,
GET_PDATA_ENTRY, _bfd_peAArch64_bfd_copy_private_bfd_data_common,
_bfd_peAArch64_bfd_copy_private_section_data,
_bfd_peAArch64_get_symbol_info, _bfd_peAArch64_only_swap_filehdr_out,
_bfd_peAArch64_print_private_bfd_data_common,
_bfd_peAArch64i_final_link_postscript,
_bfd_peAArch64i_only_swap_filehdr_out, _bfd_peAArch64i_swap_aouthdr_in,
_bfd_peAArch64i_swap_aouthdr_out, _bfd_peAArch64i_swap_aux_in,
_bfd_peAArch64i_swap_aux_out, _bfd_peAArch64i_swap_lineno_in,
_bfd_peAArch64i_swap_lineno_out, _bfd_peAArch64i_swap_scnhdr_out,
_bfd_peAArch64i_swap_sym_in, _bfd_peAArch64i_swap_sym_out,
_bfd_peAArch64i_swap_debugdir_in, _bfd_peAArch64i_swap_debugdir_out,
_bfd_peAArch64i_write_codeview_record,
_bfd_peAArch64i_slurp_codeview_record,
_bfd_peAArch64_print_ce_compressed_pdata): New.
* peXXigen.c (_bfd_XXi_swap_aouthdr_in, _bfd_XXi_swap_aouthdr_out,
pe_print_pdata, _bfd_XX_print_private_bfd_data_common,
_bfd_XX_bfd_copy_private_section_data, _bfd_XXi_final_link_postscript):
Support COFF_WITH_peAArch64,
* pei-aarch64.c: New file.
* peicode.h (coff_swap_scnhdr_in, pe_ILF_build_a_bfd, pe_ILF_object_p):
Support COFF_WITH_peAArch64.
(jtab): Add dummy entry that traps.
* targets.c (aarch64_pei_vec): New.

binutils/ChangeLog:

2021-10-21  Tamar Christina  <tamar.christina@arm.com>

PR binutils/26206
* NEWS: Add new support.
* objcopy.c (convert_efi_target): Add efi-*-aarch64 support.
* testsuite/binutils-all/aarch64/pei-aarch64-little.d: New test.
* testsuite/binutils-all/aarch64/pei-aarch64-little.s: New test.

include/ChangeLog:

2021-10-21  Tamar Christina  <tamar.christina@arm.com>

PR binutils/26206
* coff/aarch64.h: New file.
* coff/pe.h (IMAGE_FILE_MACHINE_ARM64): New.

3 years agobinutils debuginfod test
Alan Modra [Sun, 21 Nov 2021 23:30:45 +0000 (10:00 +1030)]
binutils debuginfod test

A missing "return" resulted in this non-ELF fail:
x86_64-w64-mingw32  +FAIL: debuginfod (create separate debug info file)

Also, the debuginfod I have installed does not appear to handle
non-native ELF objects, so only run the test when native.

* testsuite/binutils-all/debuginfod.exp: Don't run test unless
native ELF.

3 years agoUpdate bug reporting address
Alan Modra [Fri, 19 Nov 2021 07:27:25 +0000 (17:57 +1030)]
Update bug reporting address

https://sourceware.org/bugzilla/ everywhere

bfd/
* configure.ac (ACX_BUGURL): Set to https://sourceware.org/bugzilla/
* po/Make-in (msgid-bugs-address): Likewise.
* README: Report bugs to the above.
* configure: Regenerate.
binutils/
* po/Make-in (msgid-bugs-address): Update.
gas/
* README: Update bug address.  Delete mention of gcc.
* po/Make-in: Update bug address.
gold/
* po/Make-in: Update bug address.
gprof/
* po/Make-in: Update bug address.
ld/
* po/Make-in: Update bug address.
opcodes/
* po/Make-in: Update bug address.

3 years agogdb: more compile fixes for gnu-nat.c
Jan (janneke) Nieuwenhuizen [Mon, 22 Nov 2021 07:30:57 +0000 (08:30 +0100)]
gdb: more compile fixes for gnu-nat.c

This fixes compile errors like

    ../../gdb-11.1/gdb/gnu-nat.c: In function void add_task_commands():
    ../../gdb-11.1/gdb/gnu-nat.c:3204:17: error: no matching function for call to add_cmd(const char [8], command_class, cmd_list_element*&, char*, cmd_list_element**)
     3204 |         &setlist);
          |                 ^
    In file included from ../../gdb-11.1/gdb/completer.h:21,
                     from ../../gdb-11.1/gdb/symtab.h:36,
                     from ../../gdb-11.1/gdb/infrun.h:21,
                     from ../../gdb-11.1/gdb/target.h:42,
                     from ../../gdb-11.1/gdb/inf-child.h:23,
                     from ../../gdb-11.1/gdb/gnu-nat.h:38,
                     from ../../gdb-11.1/gdb/gnu-nat.c:24:
    ../../gdb-11.1/gdb/command.h:160:33: note: candidate: cmd_list_element* add_cmd(const char*, command_class, void (*)(const char*, int), const char*, cmd_list_element**)
      160 | extern struct cmd_list_element *add_cmd (const char *, enum command_class,
          |                                 ^~~~~~~
    ../../gdb-11.1/gdb/command.h:161:30: note:   no known conversion for argument 3 from cmd_list_element* to void (*)(const char*, int)
      161 |       cmd_const_cfunc_ftype *fun,
          |       ~~~~~~~~~~~~~~~~~~~~~~~^~~
    ../../gdb-11.1/gdb/command.h:167:33: note: candidate: cmd_list_element* add_cmd(const char*, command_class, const char*, cmd_list_element**)
      167 | extern struct cmd_list_element *add_cmd (const char *, enum command_class,
          |                                 ^~~~~~~
    ../../gdb-11.1/gdb/command.h:167:33: note:   candidate expects 4 arguments, 5 provided
    ../../gdb-11.1/gdb/gnu-nat.c:3210:18: error: no matching function for call to add_cmd(const char [8], command_class, cmd_list_element*&, char*, cmd_list_element**)
     3210 |         &showlist);
          |                  ^

Change-Id: Ie9029363d3fb40e34e8f5b1ab503745bc44bfe3f

3 years agognu-nat.c: fix calls to add_info_alias
Andrea Monaco [Tue, 23 Nov 2021 02:26:25 +0000 (21:26 -0500)]
gnu-nat.c: fix calls to add_info_alias

Some time ago add_info_alias was changed (commit
e0f25bd9717c7973197095523db7c1cdc956cea2).  These calls were not updated
and caused errors on compilation.

Change-Id: I354ae4e8b8926d785abc94ec7142471ffd76d2de

3 years agoAutomatic date update in version.in
GDB Administrator [Tue, 23 Nov 2021 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years agogdb: pass more const target_waitstatus by reference
Simon Marchi [Mon, 22 Nov 2021 16:27:31 +0000 (11:27 -0500)]
gdb: pass more const target_waitstatus by reference

While working on target_waitstatus changes, I noticed a few places where
const target_waitstatus objects could be passed by reference instead of
by pointers.  And in some cases, places where a target_waitstatus could
be passed as const, but was not.  Convert them as much as possible.

Change-Id: Ied552d464be5d5b87489913b95f9720a5ad50c5a

3 years agogdb: introduce target_waitkind_str, use it in target_waitstatus::to_string
Simon Marchi [Mon, 22 Nov 2021 16:27:30 +0000 (11:27 -0500)]
gdb: introduce target_waitkind_str, use it in target_waitstatus::to_string

I would like to print target_waitkind values in debug messages, so I
think that a target_waitkind-to-string function would be useful.  While
at it, use it in target_waitstatus::to_string.  This changes the output
of target_waitstatus::to_string a bit, but I think it is for the better.
The debug messages will show a string matching exactly the
target_waitkind enumerator (minus the TARGET_WAITKIND prefix).

As a convenience, make string_appendf return the same reference to
string it got as a parameter.  This allows doing this:

  return string_appendf (str, "foo");

... keeping the code concise.

Change-Id: I383dffc9c78614e7d0668b1516073905e798eef7

3 years agogdb: rename target_waitstatus_to_string to target_waitstatus::to_string
Simon Marchi [Mon, 22 Nov 2021 16:27:29 +0000 (11:27 -0500)]
gdb: rename target_waitstatus_to_string to target_waitstatus::to_string

Make target_waitstatus_to_string a "to_string" method of
target_waitstatus, a bit like we have ptid_t::to_string already.  This
will save a bit of typing.

Change-Id: Id261b7a09fa9fa3c738abac131c191a6f9c13905

3 years agoRISC-V: Removed the redundant NULL pointer check in the riscv_update_subset.
Nelson Chu [Mon, 22 Nov 2021 11:34:45 +0000 (19:34 +0800)]
RISC-V: Removed the redundant NULL pointer check in the riscv_update_subset.

If we always use the .option arch to call the riscv_update_subset, then
it is almost impossible that the input string will be NULL.  Therefore,
just remove the redundant NULL pointer check in the riscv_update_subset.

bfd/
* elfxx-riscv.c (riscv_update_subset): Removed the redundant NULL
pointer check.

3 years agoRISC-V: Replace .option rvc/norvc with .option arch, +c/-c.
Nelson Chu [Mon, 22 Nov 2021 10:21:15 +0000 (18:21 +0800)]
RISC-V: Replace .option rvc/norvc with .option arch, +c/-c.

Since the .option rvc/norvc directives are obsolete, replace them with
the new proposed diretives: .option arch, +c/-c.  And also reset the
riscv_opts.rvc flag for the .option arch directives.

gas/
* config/tc-riscv.c (s_riscv_option): Reset the riscv_opts.rvc
for the .option arch directives.
* testsuite/gas/riscv/align-1.s: Replace the obsolete .option
rvc/norvc with .option arch, +c/-c.
* testsuite/gas/riscv/c-add-addi.s: Likewise.
* testsuite/gas/riscv/c-nonzero-imm.s: Likewise.
* testsuite/gas/riscv/c-nonzero-reg.s: Likewise.
* testsuite/gas/riscv/c-zero-imm-64.s: Likewise.
* testsuite/gas/riscv/c-zero-imm.s: Likewise.
* testsuite/gas/riscv/c-zero-reg.s: Likewise.
* testsuite/gas/riscv/ext.s: Likewise.
* testsuite/gas/riscv/mapping-01.s: Likewise.
* testsuite/gas/riscv/mapping-02.s: Likewise.
* testsuite/gas/riscv/mapping-03.s: Likewise.
* testsuite/gas/riscv/mapping-04.s: Likewise.
* testsuite/gas/riscv/no-relax-align-2.s: Likewise.
* testsuite/gas/riscv/shamt-32.s: Likewise.
* testsuite/gas/riscv/shamt-64.s: Likewise.

3 years ago[gdb/build] Fix x86_64 x32 build
Tom de Vries [Mon, 22 Nov 2021 11:21:46 +0000 (12:21 +0100)]
[gdb/build] Fix x86_64 x32 build

A build error on x86_64 with x32 abi was reported here (
https://sourceware.org/pipermail/gdb/2021-November/049787.html ):
...
gdb/nat/amd64-linux-siginfo.c:280:42: error: \
  'struct compat_x32_siginfo_t::<unnamed union>::<unnamed>' has no member \
  named 'si_addr_bnd'
280 | #define cpt_si_lower _sifields._sigfault.si_addr_bnd._lower
| ^~~~~~~~~~~
gdb/nat/amd64-linux-siginfo.c:337:38: note: in expansion of macro 'cpt_si_lower'
337 | to->cpt_si_lower = from_ptrace.cpt_si_lower;
| ^~~~~~~~~~~~
...

The problem is that code added in commit d3d7d1ba3bb "[gdb/tdep] Handle
si_addr_bnd in compat_siginfo_from_siginfo" doesn't compile on an x86_64 x32
setup, because compat_x32_siginfo_t doesn't have the si_addr_bnd fields.

Fix this conservatively by disabling the code for x32.

Tested on x86_64-linux.

3 years agoRISC-V: PR28610, Fix ASAN heap-buffer-overflow error in riscv_update_subset.
Nelson Chu [Mon, 22 Nov 2021 07:31:32 +0000 (23:31 -0800)]
RISC-V: PR28610, Fix ASAN heap-buffer-overflow error in riscv_update_subset.

The architecture parser in riscv_update_subset shouldn't check (or access)
the pointer space which doesn't exist.

bfd/
pr 28610
* elfxx-riscv.c (riscv_update_subset): The architecture parser
shouldn't access the pointer space which doesn't exist.

3 years ago[gdb/symtab] Support .debug_line with DW_FORM_line_strp
Tom de Vries [Mon, 22 Nov 2021 08:14:16 +0000 (09:14 +0100)]
[gdb/symtab] Support .debug_line with DW_FORM_line_strp

I noticed a new gcc option -gdwarf64 and tried it out (using gcc 11.2.1).

With a test-case hello.c:
...
int
main (void)
{
  printf ("hello\n");
  return 0;
}
...
compiled like this:
...
$ gcc -g -gdwarf64 ~/hello.c
...
I ran into:
...
$ gdb -q -batch a.out
DW_FORM_line_strp pointing outside of .debug_line_str section \
  [in module a.out]
...

Debugging gdb revealed that the string offset is:
...
(gdb) up
    objfile=0x182ab70, str_offset=1378684502312,
    form_name=0xeae9b5 "DW_FORM_line_strp")
    at src/gdb/dwarf2/section.c:208
208         error (_("%s pointing outside of %s section [in module %s]"),
(gdb) p /x str_offset
$1 = 0x14100000128
(gdb)
...
which is read when parsing a .debug_line entry at 0x1e0.

Looking with readelf at the 0x1e0 entry, we have:
...
 The Directory Table (offset 0x202, lines 2, columns 1):
  Entry Name
  0     (indirect line string, offset: 0x128): /data/gdb_versions/devel
  1     (indirect line string, offset: 0x141): /home/vries
...
which in a hexdump looks like:
...
  0x00000200 1f022801 00004101 00000201 1f020f02
...

What happens is the following:
- readelf interprets the DW_FORM_line_strp reference to .debug_line_str as
  a 4 byte value, and sees entries 0x00000128 and 0x00000141.
- gdb instead interprets it as an 8 byte value, and sees as first entry
  0x0000014100000128, which is too big so it bails out.

AFAIU, gdb is wrong.  It assumes DW_FORM_line_strp is 8 bytes on the basis
that the corresponding CU is 64-bit DWARF.  However, the .debug_line
contribution has it's own initial_length field, and encodes there that it's
32-bit DWARF.

Fix this by using the correct offset size for DW_FORM_line_strp references
in .debug_line.

Note: the described test-case does trigger this complaint (both with and
without this patch):
...
$ gdb -q -batch -iex "set complaints 10" a.out
During symbol reading: intermixed 32-bit and 64-bit DWARF sections
...

The reason that the CU has 64-bit dwarf is because -gdwarf64 was passed to
gcc.  The reason that the .debug_line entry has 32-bit dwarf is because that's
what gas generates.  Perhaps this is complaint-worthy, but I don't think it
is wrong.

Tested on x86_64-linux, using native and target board dwarf64.exp.

3 years ago[gdb/testsuite] Add target board dwarf64.exp
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Add target board dwarf64.exp

Add a new target board dwarf64.exp, that runs test with -gdwarf64.

Tested on x86_64-linux.

3 years ago[gdb/testsuite] Support .debug_line v5 in dwarf assembler
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Support .debug_line v5 in dwarf assembler

The v5 section version for .debug_line has:
- two new fields address_size and segment_selector_size
- a different way to encode the directory and filename tables.

Add support for this in the dwarf assembler.

For now, make the v5 directory and filename tables work with the v4 type of
specification in the test-cases by adding duplicate entries at position 0.

This will need to be properly fixed with an intrusive fix that changes how
directory and filename entries are specified in the test-cases, f.i:
...
set diridx [include_dir "${srcdir}/${subdir}"]
set fileidx [file_name "$srcfile" $diridx]
...

Tested on x86_64-linux.

3 years ago[gdb/testsuite] Factor out _line_finalize_header
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Factor out _line_finalize_header

Rather than generate dwarf immediately in procs include_dir and file_name,
postpone generation and store the data in variables.  Then handle the
generation in a new proc _line_finalize_header.

Tested on x86-64-linux.

3 years ago[gdb/testsuite] Support .debug_line v4 in dwarf assembler
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Support .debug_line v4 in dwarf assembler

The .debug_line header got a new field in v4:
maximum_operations_per_instruction.

Generate this field in the dwarf assembler, for now hardcoding the value to 1,
meaning non-VLIW.

Tested on x86_64-linux.

3 years ago[gdb/testsuite] Add test-case gdb.dwarf2/dw2-lines.exp
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Add test-case gdb.dwarf2/dw2-lines.exp

Add a new test-case gdb.dwarf2/dw2-lines.exp that tests various .debug_line
sections.

Tested on x86_64-linux.

3 years ago[gdb/testsuite] Speed up MACRO_AT_* calls
Tom de Vries [Mon, 22 Nov 2021 08:14:15 +0000 (09:14 +0100)]
[gdb/testsuite] Speed up MACRO_AT_* calls

Currently, for each MACRO_AT_range or MACRO_AT_func in dwarf assembly the
following is done:
- $srcdir/$subdir/$srcfile is compiled to an executable using
  flags "debug"
- a new gdb instance is started
- the new executable is loaded.

This is inefficient, because the executable is identical within the same
Dwarf::assemble call.

Share the gdb instance in the same Dwarf::assemble invocation, which speeds
up a make check with RUNTESTFLAGS like this to catch all dwarf assembly
test-cases:
...
rtf=$(echo $(cd src/gdb/testsuite; find gdb.* -type f -name "*.exp" \
      | xargs grep -l Dwarf::assemble))
...
from:
...
real    1m39.916s
user    1m25.668s
sys     0m21.377s
...
to:
...
real    1m29.512s
user    1m17.316s
sys     0m19.100s
...

Tested on x86_64-linux.

3 years agoAutomatic date update in version.in
GDB Administrator [Mon, 22 Nov 2021 00:00:07 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years agogdb/testsuite: Remove duplicates in gdb.base/catch-signal.exp
Lancelot SIX [Fri, 19 Nov 2021 17:33:27 +0000 (17:33 +0000)]
gdb/testsuite: Remove duplicates in gdb.base/catch-signal.exp

When running the testsuite I have the following:

    Running .../gdb/testsuite/gdb.base/catch-signal.exp ...
    DUPLICATE: gdb.base/catch-signal.exp: SIGHUP: continue
    DUPLICATE: gdb.base/catch-signal.exp: SIGHUP: continue
    DUPLICATE: gdb.base/catch-signal.exp: 1: continue
    DUPLICATE: gdb.base/catch-signal.exp: 1: continue
    DUPLICATE: gdb.base/catch-signal.exp: SIGHUP SIGUSR2: continue
    DUPLICATE: gdb.base/catch-signal.exp: SIGHUP SIGUSR2: continue

This patch removes DUPLICATE in gdb.base/catch-signal.exp by explicitly
giving names to the offending 'gdb_test "continue"' statements to make
them distinct.

Tested on x86_64-linux.

3 years agosim: v850: fix cpu_option testsuite handling
Mike Frysinger [Sun, 21 Nov 2021 03:46:52 +0000 (22:46 -0500)]
sim: v850: fix cpu_option testsuite handling

The v850 testsuite code has been testing the $opt variable, but this
was never actually set anywhere globally or v850-specific.  Instead,
this was a random variable leaking out of the sh testsuite code.  As
far as I can tell, it has always been this way.  That means the code
only ever tested the v850 cpu target (which is the default).

This failure can be easily seen in practice by running the v850 code
in isolation and seeing it crash:
$ runtest v850/allinsns.exp
...
Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using ../../../sim/testsuite/config/default.exp as tool-and-target-specific interface file.
WARNING: Assuming target board is the local machine (which is probably wrong).
You may need to set your DEJAGNU environment variable.
Running ../../../sim/testsuite/v850/allinsns.exp ...
ERROR: tcl error sourcing ../../../sim/testsuite/v850/allinsns.exp.
ERROR: tcl error code TCL LOOKUP VARNAME opt
ERROR: can't read "opt": no such variable
    while executing
"switch -regexp -- $opt {

Backing up a bit, the reason for this logic in the first place is
because the common sim testsuite code makes an assumption about the
assembler options with cpu_option -- the option and its value are
always separated by an =.  This is not the case with v850.  So tweak
the core sim logic a bit to support omitting the = so that we can
switch v850 to the standard all_machs setting and avoid opt entirely.

3 years agoAutomatic date update in version.in
GDB Administrator [Sun, 21 Nov 2021 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years ago Fix intermittent failures on the H8, particularly H8/SX tests.
Jeff Law [Sat, 20 Nov 2021 18:06:15 +0000 (13:06 -0500)]
Fix intermittent failures on the H8, particularly H8/SX tests.

    The upstream GCC tester has  showed spurious execution failures on the
    H8 target for the H8/SX multilibs. I suspected memory corruption or an
    uninitialized variable early as the same binary would sometimes work and
    sometimes it got the wrong result. Worse yet, the point where the test
    determined it was getting the wrong result would change.

    Because it only happened on the H8/SX variant I was able to zero in on
    the "mova" support and the "short form" of those instructions in particular.

    As the code stands it checks if code->op3.type == 0 to try and identify cases
    where op3 wasn't filled in and thus we've got the short form of the mova
    instruction.

    But for the short-form of those instructions we never set any of the "op3"
    data structure. We get whatever was lying around -- it's usually zero and
     thus things usually work, but if the stale data was nonzero, then we'd
    fail to recognize the instruction as a short-form and fail to set up the
    various fields appropriately.

    I initially initialized the op3.type field to zero, but didn't like that
     because it was inconsistent with how other operands were initialized.
    Bringing consistency meant using -1 as the initializer value and adjusting
    the check for short form mova appropriately.

    I've had this in the upstream GCC tester for perhaps a year at this point
    and haven't seen any of the intermittent failures again.

3 years agogdbsupport: fix array-view compilation with c++11 && _GLIBCXX_DEBUG
Simon Marchi [Thu, 18 Nov 2021 20:41:45 +0000 (15:41 -0500)]
gdbsupport: fix array-view compilation with c++11 && _GLIBCXX_DEBUG

When building with -std=c++11 and -D_GLIBCXX_DEBUG=1, we get some errors
like:

      CXX    unittests/array-view-selftests.o
    In file included from /home/smarchi/src/binutils-gdb/gdb/utils.h:25,
                     from /home/smarchi/src/binutils-gdb/gdb/defs.h:630,
                     from /home/smarchi/src/binutils-gdb/gdb/unittests/array-view-selftests.c:20:
    /home/smarchi/src/binutils-gdb/gdb/../gdbsupport/array-view.h: In instantiation of constexpr gdb::array_view<T> gdb::array_view<T>::slice(gdb::array_view<T>::size_type, gdb::array_view<T>::size_type) const [with T = unsigned char; gdb::array_view<T>::size_type = long unsigned int:
    /home/smarchi/src/binutils-gdb/gdb/unittests/array-view-selftests.c:532:29:   required from here
    /home/smarchi/src/binutils-gdb/gdb/../gdbsupport/array-view.h:192:3: error: body of constexpr function constexpr gdb::array_view<T> gdb::array_view<T>::slice(gdb::array_view<T>::size_type, gdb::array_view<T>::size_type) const [with T = unsigned char; gdb::array_view<T>::size_type = long unsigned int not a return-statement
      192 |   }
          |   ^

This is because constexpr functions in c++11 can only consist of a
single return statement, so we can't have the gdb_assert in there.  Make
the gdb_assert presence conditional to the __cplusplus version, to
enable it only for c++14 and later.

Change-Id: I2ac33f7b4bd1765ddc3ac8d07445b16ac1f340f0

3 years ago[gdb/build] Check if libsource-highlight is usable
Tom de Vries [Sat, 20 Nov 2021 11:22:03 +0000 (12:22 +0100)]
[gdb/build] Check if libsource-highlight is usable

When building gdb with g++ 4.8.5, I ran into:
...
ld: source-cache.o: in function `source_cache::ensure(symtab*)':
source-cache.c:207: undefined reference to \
  srchilite::SourceHighlight::SourceHighlight(std::string const&)
...

[ I configured gdb without explicit settings related to source-highlight, so
we're excercising the enable_source_highlight=auto scenario. ]

The problem is that:
- the source-highlight library is build with system compiler
  g++ 7.5.0 which uses the new libstdc++ library abi (see
  https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html )
- gdb is build using g++ 4.8.5 which uses the old abi.

[ There's a compatibility macro _GLIBCXX_USE_CXX11_ABI, but that doesn't work
for this case.  Instead, it enables the opposite case where the
source-highlight library is build with g++ 4.8.5 and gdb is build with
g++ 7.5.0. ]

Fix this by checking whether the source-highlight library is usable during
configuration.

In the enable_source_highlight=auto scenario, this allows the build to skip
the unusable library and finish successfully.

In the enable_source_highlight=yes scenario, this allows the build to error
out earlier.

Tested on x86_64-linux.

3 years agobfd: remove wrong comment in xcofflink.c
Clément Chigot [Fri, 19 Nov 2021 13:28:52 +0000 (14:28 +0100)]
bfd: remove wrong comment in xcofflink.c

This comment was long time ago associated to the function
"xcoff_build_ldsyms" which have since been replaced by
"xcoff_build_ldsym".

* xcofflink.c: Remove wrong comment.

3 years agosim: bfin: fix short --env usage in testsuite
Mike Frysinger [Sat, 20 Nov 2021 02:26:57 +0000 (21:26 -0500)]
sim: bfin: fix short --env usage in testsuite

Now that we have more than one option that matches "--env", the test
config here doesn't work.  Use the explicit --environment.

3 years agoAutomatic date update in version.in
GDB Administrator [Sat, 20 Nov 2021 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years agoelfedit: Align --[in|out]put-abiversion usage
H.J. Lu [Fri, 19 Nov 2021 16:11:59 +0000 (08:11 -0800)]
elfedit: Align --[in|out]put-abiversion usage

Align

  --input-abiversion [0-255]  Set input ABIVERSION
  --output-abiversion [0-255] Set output ABIVERSION

instead of

  --input-abiversion [0-255]
                              Set input ABIVERSION
  --output-abiversion [0-255]
                              Set output ABIVERSION

* elfedit.c (usage): Align --[in|out]put-abiversion usage.

3 years ago[gdb/testsuite] Handle runto fail in gdb.mi/mi-var-cp.exp
Tom de Vries [Fri, 19 Nov 2021 14:55:16 +0000 (15:55 +0100)]
[gdb/testsuite] Handle runto fail in gdb.mi/mi-var-cp.exp

On OBS I ran into:
...
PASS: gdb.mi/mi-var-cp.exp: run to mi-var-cp.cc:81 (set breakpoint)
UNRESOLVED: gdb.mi/mi-var-cp.exp: unable to start target
...
followed by 81 FAILs and two more UNRESOLVEDs.

I didn't manage to reproduce this, but I did notice that the initial
problem causing the UNRESOLVED caused all subsequent UNRESOLVEDs and FAILs.

I emulated the problem by commenting out the send_gdb "run\n" in
mi_run_cmd_full.

Fix this by:
- handling mi_run_cmd failure in mi_get_inline_test
- handling mi_run_inline_test failure in gdb.mi/mi-var-cp.exp, and
  other test-cases using mi_get_inline_test

Tested on x86_64-linux.

3 years ago[gdb/testsuite] Fix 64-bit dwarf test-cases with -m32
Tom de Vries [Fri, 19 Nov 2021 14:09:05 +0000 (15:09 +0100)]
[gdb/testsuite] Fix 64-bit dwarf test-cases with -m32

When running test-case gdb.dwarf2/loc-sec-offset.exp with target board -m32,
I run into:
...
builtin_spawn -ignore SIGHUP gcc -fno-stack-protector -m32 \
  -fdiagnostics-color=never -c -o loc-sec-offset-dw641.o \
  loc-sec-offset-dw64.S^M
as: loc-sec-offset-dw641.o: unsupported relocation type: 0x1^M
loc-sec-offset-dw64.S: Assembler messages:^M
loc-sec-offset-dw64.S:29: Error: cannot represent relocation type \
  BFD_RELOC_64^M
...

Looking at line 29, we have:
...
        .8byte        .Labbrev1_begin   /* Abbrevs */
...

It would be nice if the assembler could handle this somehow.  But I guess
it's not unreasonable that an assembler for a 32-bit architecture will object
to handling 64-bit labels.

Instead, work around this in the dwarf assembler by emitting:
...
        .4byte        .Labbrev1_begin   /* Abbrevs (lsw) */
        .4byte        0                 /* Abbrevs (msw) */
...

Tested on x86_64-linux with target board unix/-m32.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28383

3 years ago[gdb/testsuite] Fix gdb.threads/thread-specific-bp.exp
Tom de Vries [Fri, 19 Nov 2021 13:33:39 +0000 (14:33 +0100)]
[gdb/testsuite] Fix gdb.threads/thread-specific-bp.exp

On OBS I ran into a failure in test-case gdb.threads/thread-specific-bp.exp:
...
(gdb) PASS: gdb.threads/thread-specific-bp.exp: non-stop: continue to end
info breakpoint^M
Num     Type           Disp Enb Address            What^M
1       breakpoint     keep y   0x0000555555555167 in main at $src:36^M
        breakpoint already hit 1 time^M
2       breakpoint     keep y   0x0000555555555151 in start at $src:23^M
        breakpoint already hit 1 time^M
3       breakpoint     keep y   0x0000555555555167 in main at $src:36 thread 2^M
        stop only in thread 2^M
4       breakpoint     keep y   0x000055555555515c in end at $src:29^M
        breakpoint already hit 1 time^M
(gdb) [Thread 0x7ffff7db1640 (LWP 19984) exited]^M
Thread-specific breakpoint 3 deleted - thread 2 no longer in the thread list.^M
FAIL: gdb.threads/thread-specific-bp.exp: non-stop: \
  thread-specific breakpoint was deleted (timeout)
...

Fix this by waiting for the "[Thread 0x7ffff7db1640 (LWP 19984) exited]"
message before issuing the "info breakpoint command".

Tested on x86_64-linux.

3 years agogdb/testsuite: Extend tests for print of cv qualifiers
Christina Schimpe [Tue, 16 Nov 2021 09:58:11 +0000 (10:58 +0100)]
gdb/testsuite: Extend tests for print of cv qualifiers

This commit supplements whatis and ptype command tests for print of
const-volatile qualifiers.

gdb/testsuite/ChangeLog:
2021-11-16  Christina Schimpe  <christina.schimpe@intel.com>

* gdb.cp/ptype-cv-cp.cc: New const and volatile typedef
  variables.
* gdb.cp/ptype-cv-cp.exp: Add new tests.

3 years agogdb: Print cv qualifiers if class attributes are substituted
Christina Schimpe [Tue, 16 Nov 2021 09:58:10 +0000 (10:58 +0100)]
gdb: Print cv qualifiers if class attributes are substituted

Make ptype print const/volatile qualifiers when template or typedef
attributes are substituted.

For a programm like
~~~
template<typename DataT>
class Cfoo
{
  typedef float myfloat;
public:
  DataT me0;
  const DataT me1=1;
  const myfloat me2=2.0;
};

int main()
{
  Cfoo<int> cfoo;
  return 0;
}
~~~

gdb outputs the following type for cfoo's attributes:

~~~
(gdb) b 14
Breakpoint 1 at 0x1170: file tmp.cc, line 14.
(gdb) run
Starting program: /tmp

Breakpoint 1, main () at tmp.cc:14
14        return 0;
(gdb) ptype cfoo
type = class Cfoo<int> [with DataT = int] {
  public:
    DataT me0;
    DataT me1;
    myfloat me2;

  private:
    typedef float myfloat;
}

~~~

The cv qualifiers (const in this case) are ignored for me1 and me2.

After:
~~~
(gdb) ptype cfoo
type = class Cfoo<int> [with DataT = int] {
  public:
    DataT me0;
    const DataT me1;
    const myfloat me2;

  private:
    typedef float myfloat;
}
~~~

gdb/ChangeLog:
2021-11-16  Christina Schimpe  <christina.schimpe@intel.com>

* gdb/c-typeprint.c: Print cv qualifiers in case of parameter
  substitution.

gdb/testsuite/ChangeLog:
2021-11-16  Christina Schimpe  <christina.schimpe@intel.com>

* gdb.cp/templates.cc:  New template class Cfoo with const,
  template, typdef and integer attributes.
* gdb.cp/templates.exp: Add new test using ptype and ptype/r
  commmands for template class CFoo.

3 years agoRISC-V: Support new .option arch directive.
Nelson Chu [Fri, 19 Nov 2021 09:11:06 +0000 (17:11 +0800)]
RISC-V: Support new .option arch directive.

https://github.com/riscv/riscv-asm-manual/pull/67

Format:
.option arch, +<extension><version>, ...
.option arch, -<extension>
.option arch, =<ISA string>

The new direcitve is used to enable/disable extensions for the specific
code region.  For example,

.attribute arch, "rv64ic"   # arch = rv64i2p0_c2p0
.option push
.option arch, +d2p0, -c     # arch = rv64i2p0_f2p0_d2p0, f is added implied
.option arch, =rv32gc       # arch = rv32i2p0_m2p0_a2p0_f2p0_d2p0_c2p0
.option pop                 # arch = rv64i2p0_c2p0

Note that,
1. ".option rvc/norvc" have the same behavior as ".option arch +c/-c".
2. ".option arch -i" is illegal, since we cannot remove base i extension.
3. If arch=rv64i2p0, then ".option arch, +i3p0" will update the i's version
   from 2.0 to 3.0.
4. If arch=rv64i3p0, then ".option arch, +i" will update the i's version
   from 2.0 to the default one according to the chosen isa spec.

bfd/
* elfxx-riscv.c (riscv_add_subset): If the subset is already added,
and the new versions are not RISCV_UNKNOWN_VERSION, then update the
versions to the subset list.
(riscv_copy_subset): New function.  Copy the subset from list.
(riscv_copy_subset_list): New function.  Return the new copyed list.
(riscv_update_subset): Updated to make .option arch directives workable.
* elfxx-riscv.h: Updated.
gas/
* config/tc-riscv.c (riscv_subsets): Defined as a pointer.
(riscv_rps_as): Init the subset_list to NULL, we will set it later
once riscv_opts_stack is created or updated.
(struct riscv_option_stack, riscv_opts_stack): Moved forward.
(riscv_set_arch): Updated.
(s_riscv_option): Support new .option arch directive, to add, remove
or update subsets for the specific code region.
(riscv_write_out_attrs): Updated.
* doc/c-riscv.texi: Added document for new .option arch directive.
* testsuite/gas/riscv/option-arch-01a.d: New testcase.
* testsuite/gas/riscv/option-arch-01b.d: Likewise.
* testsuite/gas/riscv/option-arch-01.s: Likewise..
* testsuite/gas/riscv/option-arch-02.d: Likewise.
* testsuite/gas/riscv/option-arch-02.s: Likewise.
* testsuite/gas/riscv/option-arch-fail.d: Likewise.
* testsuite/gas/riscv/option-arch-fail.l: Likewise.
* testsuite/gas/riscv/option-arch-fail.s: Likewise.

3 years agoRe: Add multibyte character warning option to the assembler.
Alan Modra [Fri, 19 Nov 2021 00:21:27 +0000 (10:51 +1030)]
Re: Add multibyte character warning option to the assembler.

On hppa*-hp-hpux* run_dump_test edits the test file, adjusting .comm
directives to suit those target's unusual syntax.  Thus gas is passed
a temporary file name.

* testsuite/gas/all/multibyte1.l: Ignore file name.

3 years agosim: install various doc files
Mike Frysinger [Fri, 19 Nov 2021 00:32:31 +0000 (19:32 -0500)]
sim: install various doc files

3 years agoRISC-V: Support STO_RISCV_VARIANT_CC and DT_RISCV_VARIANT_CC.
Nelson Chu [Wed, 11 Aug 2021 08:26:39 +0000 (01:26 -0700)]
RISC-V: Support STO_RISCV_VARIANT_CC and DT_RISCV_VARIANT_CC.

This is the original discussion,
https://github.com/riscv/riscv-elf-psabi-doc/pull/190

And here is the glibc part,
https://sourceware.org/pipermail/libc-alpha/2021-August/129931.html

For binutils part, we need to support a new direcitve: .variant_cc.
The function symbol marked by .variant_cc means it need to be resolved
directly without resolver for dynamic linker.  We also add a new dynamic
entry, STO_RISCV_VARIANT_CC, to indicate there are symbols with the
special attribute in the dynamic symbol table of the object.

I heard that llvm already have supported this in their mainline, so
I think it's time to commit this.

bfd/
* elfnn-riscv.c (riscv_elf_link_hash_table): Added variant_cc
flag. It is used to check if relocations for variant CC symbols
may be present.
(allocate_dynrelocs): If the symbol has STO_RISCV_VARIANT_CC
flag, then raise the variant_cc flag of riscv_elf_link_hash_table.
(riscv_elf_size_dynamic_sections): Added dynamic entry for
variant_cc.
(riscv_elf_merge_symbol_attribute): New function, used to merge
non-visibility st_other attributes, including STO_RISCV_VARIANT_CC.
binutils/
* readelf.c (get_riscv_dynamic_type): New function.
(get_dynamic_type): Called get_riscv_dynamic_type for riscv targets.
(get_riscv_symbol_other): New function.
(get_symbol_other): Called get_riscv_symbol_other for riscv targets.
gas/
* config/tc-riscv.c (s_variant_cc): Marked symbol that it follows a
variant CC convention.
(riscv_elf_copy_symbol_attributes): Same as elf_copy_symbol_attributes,
but without copying st_other.  If a function symbol has special st_other
value set via directives, then attaching an IFUNC resolver to that symbol
should not override the st_other setting.
(riscv_pseudo_table): Support variant_cc diretive.
* config/tc-riscv.h (OBJ_COPY_SYMBOL_ATTRIBUTES): Defined.
* testsuite/gas/riscv/variant_cc-set.d: New testcase.
* testsuite/gas/riscv/variant_cc-set.s: Likewise.
* testsuite/gas/riscv/variant_cc.d: Likewise.
* testsuite/gas/riscv/variant_cc.s: Likewise.
include/
* elf/riscv.h (DT_RISCV_VARIANT_CC): Defined to (DT_LOPROC + 1).
(STO_RISCV_VARIANT_CC): Defined to 0x80.
ld/
* testsuite/ld-riscv-elf/variant_cc-1.s: New testcase.
* testsuite/ld-riscv-elf/variant_cc-2.s: Likewise.
* testsuite/ld-riscv-elf/variant_cc-now.d: Likewise.
* testsuite/ld-riscv-elf/variant_cc-r.d: Likewise.
* testsuite/ld-riscv-elf/variant_cc-shared.d: Likewise.
* testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.

3 years agosim: use program_transform_name for libsim
Mike Frysinger [Fri, 19 Nov 2021 00:56:45 +0000 (19:56 -0500)]
sim: use program_transform_name for libsim

Instead of always using target_alias as a prefix on the name, use
program_transform_name instead so that the library is scoped in the
same way as the run program.

3 years agosim: avoid installing headers when there is no sim
Mike Frysinger [Fri, 19 Nov 2021 00:10:28 +0000 (19:10 -0500)]
sim: avoid installing headers when there is no sim

If we aren't building any sims, don't install the sim headers as they
won't be useful to anyone.

3 years agoAutomatic date update in version.in
GDB Administrator [Fri, 19 Nov 2021 00:00:07 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years agodprintf-execution-x-script.exp: Adjust test for native-extended-gdbserver
Kevin Buettner [Thu, 18 Nov 2021 22:06:01 +0000 (15:06 -0700)]
dprintf-execution-x-script.exp: Adjust test for native-extended-gdbserver

Without this commit, doing...

make check RUNTESTFLAGS="--target_board=native-extended-gdbserver" \
           TESTS="gdb.base/dprintf-execution-x-script.exp"

...will show one failure.

Here's a snippet from gdb.log showing the circumstances - I've trimmed
the paths for readability:

builtin_spawn gdb -nw -nx -data-directory data-directory -iex set height 0 -iex set width 0 -iex set auto-connect-native-target off -iex set sysroot -ex set height unlimited -x testsuite/gdb.base/dprintf-execution-x-script.gdb --args testsuite/outputs/gdb.base/dprintf-execution-x-script/dprintf-execution-x-script
...
Reading symbols from testsuite/outputs/gdb.base/dprintf-execution-x-script/dprintf-execution-x-script...
Dprintf 1 at 0x40116e: file testsuite/gdb.base/dprintf-execution-x-script.c, line 38.
Breakpoint 2 at 0x40113a: file testsuite/gdb.base/dprintf-execution-x-script.c, line 26.
testsuite/gdb.base/dprintf-execution-x-script.gdb:21: Error in sourced command file:
Don't know how to run.  Try "help target".
(gdb) FAIL: gdb.base/dprintf-execution-x-script.exp: load and run script with -x
...
GNU gdb (GDB) 12.0.50.20211118-git
Copyright (C) 2021 Free Software Foundation, Inc.
...
(gdb) set height 0
(gdb) set width 0
(gdb) builtin_spawn gdbserver/gdbserver --once --multi localhost:2346
Listening on port 2346
target extended-remote localhost:2346
Remote debugging using localhost:2346
...
[Tests after this point will pass.]

Note that the command which spawns gdb prevents the gdb script from
using the native target via "-iex set auto-connect-native-target off".

Moreover, the script in question contains a "run" command, so GDB
doesn't know how to run (since it's prevented from using the native
target and no alternate "target" command has been issued.  But, once
GDB finishes starting up, the test will spawn a gdbserver and then
connect to it.  The other (two) tests after this point both pass.

I've fixed this by using gdb_test_multiple instead of gdb_test.
When a "Don't know how to run message" is received, the test is
unsupported.

I've also added a comment explaining the reason for needing to check
for "Don't know how to run" despite bailing out at the top of the test
via:

  if ![target_can_use_run_cmd] {
      return 0
  }

3 years agogdb: fix array-view-selftests.c build with g++ 4.8
Simon Marchi [Thu, 18 Nov 2021 21:35:34 +0000 (16:35 -0500)]
gdb: fix array-view-selftests.c build with g++ 4.8

When building with g++ 4.8, I get:

    CXX    unittests/array-view-selftests.o
  /home/smarchi/src/binutils-gdb/gdb/unittests/array-view-selftests.c:123:42: error: expected 'class' before 'Container'
   template<template<typename ...> typename Container>
    ^

I am no C++ template expert, but it looks like if I change "typename" for
"class", as the compiler kind of suggests, the code compiles.

Change-Id: I9c3edd29fb2b190069f0ce0dbf3bc3604d175f48

3 years agogdb: fix ia64-tdep.c build with g++ 4.8
Simon Marchi [Thu, 18 Nov 2021 21:35:31 +0000 (16:35 -0500)]
gdb: fix ia64-tdep.c build with g++ 4.8

When building with g++ 4.8, I get:

      CXX    ia64-tdep.o
    /home/smarchi/src/binutils-gdb/gdb/ia64-tdep.c:3862:1: error: could not convert '{ia64_allocate_new_rse_frame, ia64_store_argument_in_slot, ia64_set_function_addr}' from '<brace
-enclosed initializer list>' to 'const ia64_infcall_ops'
     };
     ^

This happens since commit 345bd07cce3 ("gdb: fix gdbarch_tdep ODR
violation"), which added default values for ia64_infcall_ops fields.  It
looks like g++ 4.8 doesn't like initializing the ia64_infcall_ops object
using the brace-enclosed initializer list when the ia64_infcall_ops
fields are assigned default values.

Later compilers don't have a problem with that, so I suppose that the
code is correct, but still, change it to make gcc 4.8 happy.  Don't
initialize the fields of ia64_infcall_ops directly, instead
default-initialize ia64_gdbarch_tdep::infcall_ops.

Change-Id: I35e3a61abd7b7bbcafe6cb207078c738c5266d76

3 years agogdb: move AIX_TEXT_SEGMENT_BASE to rs6000-aix-tdep.c, remove rs6000-tdep.h
Simon Marchi [Tue, 16 Nov 2021 03:04:21 +0000 (22:04 -0500)]
gdb: move AIX_TEXT_SEGMENT_BASE to rs6000-aix-tdep.c, remove rs6000-tdep.h

The contents of rs6000-tdep.h (AIX_TEXT_SEGMENT_BASE) is AIX-specific,
so I thought that this file should be named rs6000-aix-tdep.h.  But
there's already a rs6000-aix-tdep.h, so then I though
AIX_TEXT_SEGMENT_BASE should simply be moved there, and rs6000-tdep.h
deleted.  But then I realized that AIX_TEXT_SEGMENT_BASE is only used in
rs6000-aix-tdep.c, so move it to the beginning of that file.

Change-Id: Ia212c6fae202f31aedb46575821cd642beeda7a3

3 years agogdb: rename rs6000-nat.c to rs6000-aix-nat.c
Simon Marchi [Tue, 16 Nov 2021 03:04:20 +0000 (22:04 -0500)]
gdb: rename rs6000-nat.c to rs6000-aix-nat.c

This file seems to be AIX-specific, according to its contents and
configure.nat.  Rename it to rs6000-aix-nat.c, to make that clear (and
to follow the convention).

Change-Id: Ib418dddc6b79b2e28f64431121742b5e87f5f4f5

3 years ago[gdb/doc] Fix negative repeat count examining memory example
Tom de Vries [Thu, 18 Nov 2021 18:22:51 +0000 (19:22 +0100)]
[gdb/doc] Fix negative repeat count examining memory example

The documentation for the examining memory command x contains an example:
...
You can also specify a negative repeat count to examine memory backward from
the given address.  For example, 'x/-3uh 0x54320' prints three halfwords (h)
at 0x54314, 0x54328, and 0x5431c.
...

The 0x54328 looks like a typo, which was intended to be 0x54318.

But the series uses a 4-byte distance, while the halfword size used in the
command means a 2-byte distance, so the series should be:
...
0x5431a, 0x5431c, and 0x5431e.
...

Fix this by updating the addresses in the example accordingly.

Reported here ( https://sourceware.org/pipermail/gdb/2021-November/049784.html
).

3 years agoAdd multibyte character warning option to the assembler.
Nick Clifton [Thu, 18 Nov 2021 16:48:19 +0000 (16:48 +0000)]
Add multibyte character warning option to the assembler.

* as.c (parse_args): Add support for --multibyte-handling.
* as.h (multibyte_handling): Declare.
* app.c (scan_for_multibyte_characters): New function.
(do_scrub_chars): Call the new function if multibyte warning is
enabled.
* input-scrub,c (input_scrub_next_buffer): Call the multibyte
scanning function if multibyte warnings are enabled.
* symbols.c (struct symbol_flags): Add multibyte_warned bit.
(symbol_init): Call the multibyte scanning function if multibyte
symbol warnings are enabled.
(S_SET_SEGMENT): Likewise.
* NEWS: Mention the new feature.
* doc/as.texi: Document the new feature.
* testsuite/gas/all/multibyte.s: New test source file.
* testsuite/gas/all/multibyte1.d: New test driver file.
* testsuite/gas/all/multibyte1.l: New test expected output.
* testsuite/gas/all/multibyte2.d: New test driver file.
* testsuite/gas/all/multibyte2.l: New test expected output.
* testsuite/gas/all/gas.exp: Run the new tests.

3 years agogdb: include gdbarch.h in all files extending gdbarch_tdep
Simon Marchi [Wed, 17 Nov 2021 17:13:47 +0000 (12:13 -0500)]
gdb: include gdbarch.h in all files extending gdbarch_tdep

Commit 345bd07cce33 ("gdb: fix gdbarch_tdep ODR violation") made a bunch
of files define a *_gdbarch_tdep class that inherits from a gdbarch_tdep
base.  But some of these files don't include gdbarch.h, where
gdbarch_tdep is defined.  This may cause build errors if gdbarch.h isn't
already included by chance by some other header file.  Avoid this by
making them include gdbarch.h.

Change-Id: If433d302007e274daa4f656cfc94f769cf1aa68a

3 years agogdbsupport: make gdb_assert_not_reached accept a format string
Simon Marchi [Wed, 17 Nov 2021 18:44:01 +0000 (13:44 -0500)]
gdbsupport: make gdb_assert_not_reached accept a format string

Change gdb_assert_not_reached to accept a format string plus
corresponding arguments.  This allows giving more precise messages.

Because the format string passed by the caller is prepended with a "%s:"
to add the function name, the callers can no longer pass a translated
string (`_(...)`).  Make the gdb_assert_not_reached include the _(),
just like the gdb_assert_fail macro just above.

Change-Id: Id0cfda5a57979df6cdaacaba0d55dd91ae9efee7

3 years agogdb fix for catch-syscall.exp
Carl Love [Wed, 17 Nov 2021 22:29:33 +0000 (22:29 +0000)]
gdb fix for catch-syscall.exp

Remove check_continue "execve" from Proc test_catch_syscall_execve.

The check_continue proceedure checs that the command, execve, starts and
checks for the return from the command.  The execve command starts a new
program and thus the return from the command causing the test to fail.

The call to proc check_continue "execve" is removed and replaced with
just the call to check_call_to_syscall "execve" to verify the command
executed.  The next test in proc test_catch_syscall_execve verifies that
the new program started and hit the break point in main.

Update the check for the PowerPC architecture.  Power Little Endian systems
include "le" in the name.  The istarget "power64-*-linux*" check fails to
match LE sytems.  The expected string is updated to capture both Big Endian
and Little Endian systems.  Power 10 LE istarget prints as:
powerpc64le-unknown-linux-gnu.

This patch fixes three failures and the error:

    ERROR: can't read "arch1": no such variable

Patch tested on Power 10 ppc64le GNU/Linux platform.

3 years agogdb: PowerPC fix gdb.base/break-interp.exp
Carl Love [Mon, 15 Nov 2021 20:31:06 +0000 (20:31 +0000)]
gdb: PowerPC fix gdb.base/break-interp.exp

This patch fixes eight test failures on PowerPC for the test
gdb.base/break-interp.exp. The patch adds a funtion and registers it to
setup the displaced stepping for ppc-linux platform.  The patch moves the
struct ppc_inferior_data to the ppc-tdep.h include file to make it visible
to the ppc-linux-tdep.c and rs6000-tdep.c files.  Additionally the function
get_ppc_per_inferior is made external in ppc-tdep.h to make it visible in
both files.

Tested on Power 10 ppc64le-linux with no regressions.

3 years agogdb fix PowerPC test gdb.arch/ppc-longdouble.exp
Carl Love [Thu, 18 Nov 2021 00:08:18 +0000 (00:08 +0000)]
gdb fix PowerPC test gdb.arch/ppc-longdouble.exp

The test complains of duplicate tests.

DUPLICATE: gdb.arch/ppc-longdouble.exp: continue to breakpoint: return

The do_test calls gdb_continue_to_breakpoint "return".  The duplicates
are the result of calling do_test three times with different arguments.

This patch fixes the duplicate tests by adding $name to the
gdb_continue_to_breakpoint argument.

Patch tested on Power 10  ppc64le GNU/Linux, no duplicate tests reported,
no new regression errors.

3 years agoelf/x86: Issue an error on discarded output .plt section
H.J. Lu [Thu, 18 Nov 2021 15:54:34 +0000 (07:54 -0800)]
elf/x86: Issue an error on discarded output .plt section

Issue an error, instead of crash, on discarded output .plt section.

bfd/

PR ld/28597
* elf32-i386.c (elf_i386_finish_dynamic_sections): Issue an error
on discarded output .plt section.
* elf64-x86-64.c (elf_x86_64_finish_dynamic_sections): Likewise.

ld/

PR ld/28597
* testsuite/ld-elf/pr28597.d: New file.
* testsuite/ld-elf/pr28597.s: Likewise.
* testsuite/ld-elf/pr28597.t: Likewise.

3 years ago[gdb/testsuite] Add missing wait in gdb.base/signals-state-child.exp
Tom de Vries [Thu, 18 Nov 2021 14:52:07 +0000 (15:52 +0100)]
[gdb/testsuite] Add missing wait in gdb.base/signals-state-child.exp

On OBS I ran into:
...
(gdb) shell diff -s outputs/gdb.base/signals-state-child/standalone.txt \
  outputs/gdb.base/signals-state-child/gdb.txt^M
diff: outputs/gdb.base/signals-state-child/standalone.txt: \
  No such file or directory^M
(gdb) FAIL: gdb.base/signals-state-child.exp: signals states are identical
...

I managed to reproduce this by adding "sleep (5)" at the start of main in
signals-state-child.c.

Fix this by waiting on the result of the spawned command.

Tested on x86_64-linux.

3 years agoRe: Don't compile some opcodes files when bfd is 32-bit only
Alan Modra [Thu, 18 Nov 2021 08:21:11 +0000 (18:51 +1030)]
Re: Don't compile some opcodes files when bfd is 32-bit only

Put bpf back in the 32-bit targets, even though bpf requires a 64-bit
bfd.  bpf sim support apparently works without being 64-bit.

* Makefile.am (TARGET64_LIBOPCODES_CFILES): Move bpf files..
(TARGET32_LIBOPCODES_CFILES): ..to here.
* Makefile.in: Regenerate.

3 years agoPass DEBUGINFOD_CFLAGS when compiling dwarf.c
Alan Modra [Wed, 17 Nov 2021 04:40:04 +0000 (15:10 +1030)]
Pass DEBUGINFOD_CFLAGS when compiling dwarf.c

Pick up the elfutils/debuginfod.h install location -I flags from
a variable set by debuginfod.m4 (via pkg.m4 and pkg-config).

* Makefile.am (DEBUGINFOD_CFLAGS): Define.
(dwarf.@OBJECT@): New rule.

3 years agoRISC-V: Add testcases for z[fdq]inx
jiawei [Wed, 17 Nov 2021 12:10:08 +0000 (20:10 +0800)]
RISC-V: Add testcases for z[fdq]inx

Use gpr when the zfinx enable, the testcases contain float
instructions that reuse by z[fdq]inx.

gas/ChangeLog:

* testsuite/gas/riscv/zdinx.d: New test.
* testsuite/gas/riscv/zdinx.s: New test.
* testsuite/gas/riscv/zfinx.d: New test.
* testsuite/gas/riscv/zfinx.s: New test.
* testsuite/gas/riscv/zqinx.d: New test.
* testsuite/gas/riscv/zqinx.s: New test.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
3 years agoRISC-V: Add instructions and operand set for z[fdq]inx
jiawei [Wed, 17 Nov 2021 12:10:07 +0000 (20:10 +0800)]
RISC-V: Add instructions and operand set for z[fdq]inx

Reuse float instructions in INSN_CLASS_F/D/Q, use riscv_subset_supports to
verify if z*inx enabled and use gpr instead of fpr when z*inx is enable.

bfd/ChangeLog:

* elfxx-riscv.c (riscv_multi_subset_supports): Added support for
  z*inx extension.

gas/ChangeLog:

* config/tc-riscv.c (riscv_ip): Added register choice for z*inx.

include/ChangeLog:

* opcode/riscv.h (enum riscv_insn_class): Reused INSN_CLASS_* for z*inx.

opcodes/ChangeLog:

* riscv-dis.c (riscv_disassemble_insn): Added disassemble check for
  z*inx.
* riscv-opc.c: Reused INSN_CLASS_* for z*inx.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
3 years agoRISC-V: Add mininal support for z[fdq]inx
jiawei [Wed, 17 Nov 2021 12:10:06 +0000 (20:10 +0800)]
RISC-V: Add mininal support for z[fdq]inx

Minimal support for zfinx, zdinx, zqinx. Like f/d/q, the zqinx
imply zdinx and zdinx imply zfinx, where zfinx are not compatible
with f/d/q.

bfd/ChangeLog:

* elfxx-riscv.c (riscv_implicit_subsets): Added implicit rules
for z*inx extensions.
(riscv_supported_std_z_ext): Added entries for z*inx.
(riscv_parse_check_conflicts): Added conflict check for z*inx.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
3 years agoAutomatic date update in version.in
GDB Administrator [Thu, 18 Nov 2021 00:00:05 +0000 (00:00 +0000)]
Automatic date update in version.in

3 years agoaarch64: [SME] SVE2 instructions added to support SME
Przemyslaw Wirkus [Wed, 17 Nov 2021 20:26:53 +0000 (20:26 +0000)]
aarch64: [SME] SVE2 instructions added to support SME

This patch is adding new SVE2 instructions added to support SME extension.
The following SVE2 instructions are added by the SME architecture:
* PSEL,
* REVD, SCLAMP and UCLAMP.

gas/ChangeLog:

* config/tc-aarch64.c (parse_sme_pred_reg_with_index):
New parser.
(parse_operands): New parser.
* testsuite/gas/aarch64/sme-9-illegal.d: New test.
* testsuite/gas/aarch64/sme-9-illegal.l: New test.
* testsuite/gas/aarch64/sme-9-illegal.s: New test.
* testsuite/gas/aarch64/sme-9.d: New test.
* testsuite/gas/aarch64/sme-9.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New operand
AARCH64_OPND_SME_PnT_Wm_imm.

opcodes/ChangeLog:

* aarch64-asm.c (aarch64_ins_sme_pred_reg_with_index):
New inserter.
* aarch64-dis.c (aarch64_ext_sme_pred_reg_with_index):
New extractor.
* aarch64-opc.c (aarch64_print_operand): Printout of
OPND_SME_PnT_Wm_imm.
* aarch64-opc.h (enum aarch64_field_kind): New bitfields
FLD_SME_Rm, FLD_SME_i1, FLD_SME_tszh, FLD_SME_tszl.
* aarch64-tbl.h (OP_SVE_NN_BHSD): New qualifier.
(OP_SVE_QMQ): New qualifier.
(struct aarch64_opcode): New instructions PSEL, REVD,
SCLAMP and UCLAMP.
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add new SME system registers
Przemyslaw Wirkus [Wed, 17 Nov 2021 20:20:50 +0000 (20:20 +0000)]
aarch64: [SME] Add new SME system registers

This patch is adding miscellaneous SME related system registers.

gas/ChangeLog:

* testsuite/gas/aarch64/sme-sysreg.d: New test.
* testsuite/gas/aarch64/sme-sysreg.s: New test.
* testsuite/gas/aarch64/sme-sysreg-illegal.d: New test.
* testsuite/gas/aarch64/sme-sysreg-illegal.l: New test.
* testsuite/gas/aarch64/sme-sysreg-illegal.s: New test.

opcodes/ChangeLog:

* aarch64-opc.c: New system registers id_aa64smfr0_el1,
smcr_el1, smcr_el12, smcr_el2, smcr_el3, smpri_el1,
smprimap_el2, smidr_el1, tpidr2_el0 and mpamsm_el1.

3 years agoaarch64: [SME] Add SME mode selection and state access instructions
Przemyslaw Wirkus [Wed, 17 Nov 2021 20:15:13 +0000 (20:15 +0000)]
aarch64: [SME] Add SME mode selection and state access instructions

This patch is adding new SME mode selection and state access instructions:
* Add SMSTART and SMSTOP instructions.
* Add SVCR system register.

gas/ChangeLog:

* config/tc-aarch64.c (parse_sme_sm_za): New parser.
(parse_operands): New parser.
* testsuite/gas/aarch64/sme-8-illegal.d: New test.
* testsuite/gas/aarch64/sme-8-illegal.l: New test.
* testsuite/gas/aarch64/sme-8-illegal.s: New test.
* testsuite/gas/aarch64/sme-8.d: New test.
* testsuite/gas/aarch64/sme-8.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New operand
AARCH64_OPND_SME_SM_ZA.
(enum aarch64_insn_class): New instruction classes
sme_start and sme_stop.

opcodes/ChangeLog:

* aarch64-asm.c (aarch64_ins_pstatefield): New inserter.
(aarch64_ins_sme_sm_za): New inserter.
* aarch64-dis.c (aarch64_ext_imm): New extractor.
(aarch64_ext_pstatefield): New extractor.
(aarch64_ext_sme_sm_za): New extractor.
* aarch64-opc.c (operand_general_constraint_met_p):
New pstatefield value for SME instructions.
(aarch64_print_operand): Printout for OPND_SME_SM_ZA.
(SR_SME): New register SVCR.
* aarch64-opc.h (F_REG_IN_CRM): New register endcoding.
* aarch64-opc.h (F_IMM_IN_CRM): New immediate endcoding.
(PSTATE_ENCODE_CRM): Encode CRm field.
(PSTATE_DECODE_CRM): Decode CRm field.
(PSTATE_ENCODE_CRM_IMM): Encode CRm immediate field.
(PSTATE_DECODE_CRM_IMM): Decode CRm immediate field.
(PSTATE_ENCODE_CRM_AND_IMM): Encode CRm and immediate
field.
* aarch64-tbl.h (struct aarch64_opcode): New SMSTART
and SMSTOP instructions.
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add LD1x, ST1x, LDR and STR instructions
Przemyslaw Wirkus [Wed, 17 Nov 2021 20:02:06 +0000 (20:02 +0000)]
aarch64: [SME] Add LD1x, ST1x, LDR and STR instructions

This patch is adding new loads and stores defined by SME instructions.

gas/ChangeLog:

* config/tc-aarch64.c (parse_sme_address): New parser.
(parse_sme_za_hv_tiles_operand_with_braces): New parser.
(parse_sme_za_array): New parser.
(output_operand_error_record): Print error details if
present.
(parse_operands): Support new operands.
* testsuite/gas/aarch64/sme-5-illegal.d: New test.
* testsuite/gas/aarch64/sme-5-illegal.l: New test.
* testsuite/gas/aarch64/sme-5-illegal.s: New test.
* testsuite/gas/aarch64/sme-5.d: New test.
* testsuite/gas/aarch64/sme-5.s: New test.
* testsuite/gas/aarch64/sme-6-illegal.d: New test.
* testsuite/gas/aarch64/sme-6-illegal.l: New test.
* testsuite/gas/aarch64/sme-6-illegal.s: New test.
* testsuite/gas/aarch64/sme-6.d: New test.
* testsuite/gas/aarch64/sme-6.s: New test.
* testsuite/gas/aarch64/sme-7-illegal.d: New test.
* testsuite/gas/aarch64/sme-7-illegal.l: New test.
* testsuite/gas/aarch64/sme-7-illegal.s: New test.
* testsuite/gas/aarch64/sme-7.d: New test.
* testsuite/gas/aarch64/sme-7.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New operands.
(enum aarch64_insn_class): Added sme_ldr and sme_str.
(AARCH64_OPDE_UNTIED_IMMS): New operand error kind.

opcodes/ChangeLog:

* aarch64-asm.c (aarch64_ins_sme_za_hv_tiles): New inserter.
(aarch64_ins_sme_za_list): New inserter.
(aarch64_ins_sme_za_array): New inserter.
(aarch64_ins_sme_addr_ri_u4xvl): New inserter.
* aarch64-asm.h (AARCH64_DECL_OPD_INSERTER): Added
ins_sme_za_list, ins_sme_za_array and ins_sme_addr_ri_u4xvl.
* aarch64-dis.c (aarch64_ext_sme_za_hv_tiles): New extractor.
(aarch64_ext_sme_za_list): New extractor.
(aarch64_ext_sme_za_array): New extractor.
(aarch64_ext_sme_addr_ri_u4xvl): New extractor.
* aarch64-dis.h (AARCH64_DECL_OPD_EXTRACTOR): Added
ext_sme_za_list, ext_sme_za_array and ext_sme_addr_ri_u4xvl.
* aarch64-opc.c (operand_general_constraint_met_p):
(aarch64_match_operands_constraint): Handle sme_ldr, sme_str
and sme_misc.
(aarch64_print_operand): New operands supported.
* aarch64-tbl.h (OP_SVE_QUU): New qualifier.
(OP_SVE_QZU): New qualifier.
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add ZERO instruction
Przemyslaw Wirkus [Wed, 17 Nov 2021 19:56:09 +0000 (19:56 +0000)]
aarch64: [SME] Add ZERO instruction

This patch is adding ZERO (a list of 64-bit element ZA tiles)
instruction.

gas/ChangeLog:

* config/tc-aarch64.c (parse_sme_list_of_64bit_tiles):
New parser.
(parse_operands): Handle OPND_SME_list_of_64bit_tiles.
* testsuite/gas/aarch64/sme-4-illegal.d: New test.
* testsuite/gas/aarch64/sme-4-illegal.l: New test.
* testsuite/gas/aarch64/sme-4-illegal.s: New test.
* testsuite/gas/aarch64/sme-4.d: New test.
* testsuite/gas/aarch64/sme-4.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New operand
AARCH64_OPND_SME_list_of_64bit_tiles.

opcodes/ChangeLog:

* aarch64-opc.c (print_sme_za_list): New printing function.
(aarch64_print_operand): Handle OPND_SME_list_of_64bit_tiles.
* aarch64-opc.h (enum aarch64_field_kind): New bitfield
FLD_SME_zero_mask.
* aarch64-tbl.h (struct aarch64_opcode): New ZERO instruction.
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add MOV and MOVA instructions
Przemyslaw Wirkus [Wed, 17 Nov 2021 19:31:25 +0000 (19:31 +0000)]
aarch64: [SME] Add MOV and MOVA instructions

This patch is adding new MOV (alias) and MOVA SME instruction.

gas/ChangeLog:

* config/tc-aarch64.c (enum sme_hv_slice): new enum.
(struct reloc_entry): Added ZAH and ZAV registers.
(parse_sme_immediate): Immediate parser.
(parse_sme_za_hv_tiles_operand): ZA tile parser.
(parse_sme_za_hv_tiles_operand_index): Index parser.
(parse_operands): Added ZA tile parser calls.
(REGNUMS): New macro. Regs with suffix.
(REGSET16S): New macro. 16 regs with suffix.
* testsuite/gas/aarch64/sme-2-illegal.d: New test.
* testsuite/gas/aarch64/sme-2-illegal.l: New test.
* testsuite/gas/aarch64/sme-2-illegal.s: New test.
* testsuite/gas/aarch64/sme-2.d: New test.
* testsuite/gas/aarch64/sme-2.s: New test.
* testsuite/gas/aarch64/sme-2a.d: New test.
* testsuite/gas/aarch64/sme-2a.s: New test.
* testsuite/gas/aarch64/sme-3-illegal.d: New test.
* testsuite/gas/aarch64/sme-3-illegal.l: New test.
* testsuite/gas/aarch64/sme-3-illegal.s: New test.
* testsuite/gas/aarch64/sme-3.d: New test.
* testsuite/gas/aarch64/sme-3.s: New test.
* testsuite/gas/aarch64/sme-3a.d: New test.
* testsuite/gas/aarch64/sme-3a.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New enums
AARCH64_OPND_SME_ZA_HV_idx_src and
AARCH64_OPND_SME_ZA_HV_idx_dest.
(struct aarch64_opnd_info): New ZA tile vector struct.

opcodes/ChangeLog:

* aarch64-asm.c (aarch64_ins_sme_za_hv_tiles):
New inserter.
* aarch64-asm.h (AARCH64_DECL_OPD_INSERTER):
New inserter ins_sme_za_hv_tiles.
* aarch64-dis.c (aarch64_ext_sme_za_hv_tiles):
New extractor.
* aarch64-dis.h (AARCH64_DECL_OPD_EXTRACTOR):
New extractor ext_sme_za_hv_tiles.
* aarch64-opc.c (aarch64_print_operand):
Handle SME_ZA_HV_idx_src and SME_ZA_HV_idx_dest.
* aarch64-opc.h (enum aarch64_field_kind): New enums
FLD_SME_size_10, FLD_SME_Q, FLD_SME_V and FLD_SME_Rv.
(struct aarch64_operand): Increase fields size to 5.
* aarch64-tbl.h (OP_SME_BHSDQ_PM_BHSDQ): New qualifiers
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add SME instructions
Przemyslaw Wirkus [Wed, 17 Nov 2021 19:21:33 +0000 (19:21 +0000)]
aarch64: [SME] Add SME instructions

Patch is adding new SME matrix instructions. Please note additional
instructions will be added in following patches.

gas/ChangeLog:

* config/tc-aarch64.c (parse_sme_zada_operand):
New parser.
* config/tc-aarch64.c (parse_reg_with_qual):
New reg parser.
* config/tc-aarch64.c (R_ZA): New egister type.
(parse_operands): New parser.
* testsuite/gas/aarch64/sme-illegal.d: New test.
* testsuite/gas/aarch64/sme-illegal.l: New test.
* testsuite/gas/aarch64/sme-illegal.s: New test.
* testsuite/gas/aarch64/sme.d: New test.
* testsuite/gas/aarch64/sme.s: New test.
* testsuite/gas/aarch64/sme-f64.d: New test.
* testsuite/gas/aarch64/sme-f64.s: New test.
* testsuite/gas/aarch64/sme-i64.d: New test.
* testsuite/gas/aarch64/sme-i64.s: New test.

include/ChangeLog:

* opcode/aarch64.h (enum aarch64_opnd): New operands
AARCH64_OPND_SME_ZAda_2b, AARCH64_OPND_SME_ZAda_3b and
AARCH64_OPND_SME_Pm.
(enum aarch64_insn_class): New instruction class sme_misc.

opcodes/ChangeLog:

* aarch64-opc.c (aarch64_print_operand):
Print OPND_SME_ZAda_2b and OPND_SME_ZAda_3b operands.
(verify_constraints): Handle OPND_SME_Pm.
* aarch64-opc.h (enum aarch64_field_kind):
New bit fields FLD_SME_ZAda_2b, FLD_SME_ZAda_3b and FLD_SME_Pm.
* aarch64-tbl.h (OP_SME_ZADA_PN_PM_ZN_S): New qualifier set.
(OP_SME_ZADA_PN_PM_ZN_D): New qualifier.
(OP_SME_ZADA_PN_PM_ZN_ZM): New qualifier.
(OP_SME_ZADA_S_PM_PM_S_S): New qualifier.
(OP_SME_ZADA_D_PM_PM_D_D): New qualifier.
(OP_SME_ZADA_S_PM_PM_H_H): New qualifier.
(OP_SME_ZADA_S_PM_PM_B_B): New qualifier.
(OP_SME_ZADA_D_PM_PM_H_H): New qualifier.
(SME_INSN): New instruction macro.
(SME_F64_INSN): New instruction macro.
(SME_I64_INSN): New instruction macro.
(SME_INSNC): New instruction macro.
(struct aarch64_opcode): New SME instructions.
aarch64-asm-2.c: Regenerate.
aarch64-dis-2.c: Regenerate.
aarch64-opc-2.c: Regenerate.

3 years agoaarch64: [SME] Add +sme option to -march
Przemyslaw Wirkus [Wed, 17 Nov 2021 19:02:54 +0000 (19:02 +0000)]
aarch64: [SME] Add +sme option to -march

This series of patches (tagged [SME]) add support for the Scalable
Matrix Extension. Patch introduces new command line options: +sme, +sme-f64 and
+sme-i64 to -march command line options.

gas/ChangeLog:

* NEWS: Updated docs.
* config/tc-aarch64.c: New SME command line options.
* doc/c-aarch64.texi: Update docs.

include/ChangeLog:

* opcode/aarch64.h (AARCH64_FEATURE_SME): New flag.
(AARCH64_FEATURE_SME_F64): New flag.
(AARCH64_FEATURE_SME_I64): New flag.

opcodes/ChangeLog:

* aarch64-tbl.h (SME): New feature object.

3 years agoSet the default DLL chracteristics to 0 for Cygwin based targets.
Jeremy Drake [Wed, 17 Nov 2021 16:24:53 +0000 (16:24 +0000)]
Set the default DLL chracteristics to 0 for Cygwin based targets.

* emultempl/pep.em (DEFAULT_DLL_CHARACTERISTICS): Set to 0 for
Cygwin targets.
* emultempl/pep.em (DEFAULT_DLL_CHARACTERISTICS): Likewise.

3 years agoFix the linker script parser so that it will recognise the PT_GNU_RELRO segment type...
Nick Clifton [Wed, 17 Nov 2021 15:59:16 +0000 (15:59 +0000)]
Fix the linker script parser so that it will recognise the PT_GNU_RELRO segment type, and the linker itself so that it will gracefully handle being unable to assign any sections to such a segment.

PR 28452
bfd * elf.c (assign_file_positions_for_non_load_sections): Replace
assertion with a warning message.

ld * ldgram.y: Add support for PT_GNU_RELRO and PT_GNU_PROPERTY.
* ldgram.c: Regenerate.

3 years ago[gdb/build, s390x] Fix build after gdbarch_tdep changes
Andreas Arnez [Wed, 17 Nov 2021 10:46:36 +0000 (11:46 +0100)]
[gdb/build, s390x] Fix build after gdbarch_tdep changes

Commit 345bd07cce33 ("gdb: fix gdbarch_tdep ODR violation") changes a
declaration in s390-tdep.h from

   struct gdbarch_tdep { ... };

to

   struct s390_gdbarch_tdep : gdbarch_tdep { ... };

and now requires that gdbarch_tdep has been declared before.  Which is
usually the case, except when compiling s390-linux-nat.c, where
s390-tdep.h is included before gdbarch.h.  Thus the s390x build errors out
with the compiler complaining about a missing class name after the colon.

Fix this in s390-linux-nat.c, by including gdbarch.h before s390-tdep.h.

3 years agoExpose the BTI BTYPE more explicitly in the registers
Luis Machado [Wed, 17 Nov 2021 13:02:44 +0000 (10:02 -0300)]
Expose the BTI BTYPE more explicitly in the registers

Augment the register description XML to expose the BTI BTYPE field contained
in the CPSR register. It will be displayed like so:

cpsr           0x60001000          [ EL=0 BTYPE=0 SSBS C Z ]

3 years agoelfedit: Add --output-abiversion option to update ABIVERSION
H.J. Lu [Tue, 16 Nov 2021 22:14:56 +0000 (14:14 -0800)]
elfedit: Add --output-abiversion option to update ABIVERSION

* NEWS: Mention --output-abiversion.
* elfedit.c (input_elf_abiversion): New.
(output_elf_abiversion): Likewise.
(update_elf_header): Update EI_ABIVERSION.
(command_line_switch): Add OPTION_INPUT_ABIVERSION and
OPTION_OUTPUT_ABIVERSION.
(options): Add --input-abiversion and --output-abiversion.
(usage): Likewise.
(main): Handle --input-abiversion and --output-abiversion.
* doc/binutils.texi: Document --input-abiversion and
--output-abiversion.
* testsuite/binutils-all/elfedit.exp: Run elfedit-6.
* testsuite/binutils-all/elfedit-6.d: New file.

3 years agoRISC-V: Support rvv extension with released version 1.0.
Nelson Chu [Wed, 17 Nov 2021 10:46:11 +0000 (18:46 +0800)]
RISC-V: Support rvv extension with released version 1.0.

2021-11-17  Jim Wilson  <jimw@sifive.com>
            Kito Cheng  <kito.cheng@sifive.com>
            Nelson Chu  <nelson.chu@sifive.com>

This patch is porting from the following riscv github,
https://github.com/riscv/riscv-binutils-gdb/tree/rvv-1.0.x

And here is the vector spec,
https://github.com/riscv/riscv-v-spec

bfd/
* elfxx-riscv.c (riscv_implicit_subsets): Added imply rules
of v, zve and zvl extensions.
(riscv_supported_std_ext): Updated verison of v to  1.0.
(riscv_supported_std_z_ext): Added zve and zvl extensions.
(riscv_parse_check_conflicts): The zvl extensions need to
enable either v or zve extension.
(riscv_multi_subset_supports): Check the subset list to know
if the INSN_CLASS_V and INSN_CLASS_ZVEF instructions are supported.
gas/
* config/tc-riscv.c (enum riscv_csr_class): Added CSR_CLASS_V.
(enum reg_class): Added RCLASS_VECR and RCLASS_VECM.
(validate_riscv_insn): Check whether the rvv operands are valid.
(md_begin): Initialize register hash for rvv registers.
(macro_build): Added rvv operands when expanding rvv pseudoes.
(vector_macro): Expand rvv macros into one or more instructions.
(macro): Likewise.
(my_getVsetvliExpression): Similar to my_getVsetvliExpression,
but used for parsing vsetvli operands.
(riscv_ip): Parse and encode rvv operands.  Besides, The rvv loads
and stores with EEW 64 cannot be used when zve32x is enabled.
* testsuite/gas/riscv/priv-reg-fail-version-1p10.d: Updated -march
to rv32ifv_zkr.
* testsuite/gas/riscv/priv-reg-fail-version-1p11.d: Likewise.
* testsuite/gas/riscv/priv-reg-fail-version-1p9p1.d: Likewise.
* testsuite/gas/riscv/priv-reg.s: Added rvv csr testcases.
* testsuite/gas/riscv/priv-reg-version-1p10.d: Likewise.
* testsuite/gas/riscv/priv-reg-version-1p11.d: Likewise.
* testsuite/gas/riscv/priv-reg-version-1p9p1.d: Likewise.
* testsuite/gas/riscv/march-imply-v.d: New testcase.
* testsuite/gas/riscv/vector-insns-fail-zve32xf.d: Likewise.
* testsuite/gas/riscv/vector-insns-fail-zve32xf.l: Likewise.
* testsuite/gas/riscv/vector-insns-fail-zvl.d: Likewise.
* testsuite/gas/riscv/vector-insns-fail-zvl.l: Likewise.
* testsuite/gas/riscv/vector-insns-vmsgtvx.d: Likewise.
* testsuite/gas/riscv/vector-insns-vmsgtvx.s: Likewise.
* testsuite/gas/riscv/vector-insns-zero-imm.d: Likewise.
* testsuite/gas/riscv/vector-insns-zero-imm.s: Likewise.
* testsuite/gas/riscv/vector-insns.d: Likewise.
* testsuite/gas/riscv/vector-insns.s: Likewise.
include/
* opcode/riscv-opc.h: Defined mask/match encodings and csrs for rvv.
* opcode/riscv.h: Defined rvv immediate encodings and fields.
(enum riscv_insn_class): Added INSN_CLASS_V and INSN_CLASS_ZVEF.
(INSN_V_EEW64): Defined.
(M_VMSGE, M_VMSGEU): Added for the rvv pseudoes.
opcodes/
* riscv-dis.c (print_insn_args): Dump the rvv operands.
* riscv-opc.c (riscv_vecr_names_numeric): Defined rvv registers.
(riscv_vecm_names_numeric): Likewise.
(riscv_vsew): Likewise.
(riscv_vlmul): Likewise.
(riscv_vta): Likewise.
(riscv_vma): Likewise.
(match_vs1_eq_vs2): Added for rvv Vu operand.
(match_vd_eq_vs1_eq_vs2): Added for rvv Vv operand.
(riscv_opcodes): Added rvv v1.0 instructions.

3 years agogdb/nat/linux-osdata.c: fix build on gcc-12 (string overfow)
Sergei Trofimovich [Sun, 14 Nov 2021 15:50:01 +0000 (15:50 +0000)]
gdb/nat/linux-osdata.c: fix build on gcc-12 (string overfow)

On gcc-12 build fails as:

    ../../gdbserver/../gdb/nat/linux-osdata.c: In function 'void linux_xfer_osdata_processes(buffer*)':
    ../../gdbserver/../gdb/nat/linux-osdata.c:330:39: error:
      '__builtin___sprintf_chk' may write a terminating nul past the end of the destination [-Werror=format-overflow=]
      330 |                 sprintf (core_str, "%d", i);
          |                                       ^

It's an off-by-one case in an infeasible scenario for negative
huge core count. The change switches to std::string for memory
handling.

Tested by running 'info os processes' and checking CPU cores column.

3 years agogdb: Add aliases for read_core_file_mappings callbacks
Aaron Merey [Tue, 9 Nov 2021 21:47:36 +0000 (16:47 -0500)]
gdb: Add aliases for read_core_file_mappings callbacks

Add aliases read_core_file_mappings_loop_ftype and
read_core_file_mappings_pre_loop_ftype.  Intended for use with
read_core_file_mappings.

Also add build_id parameter to read_core_file_mappings_loop_ftype.

3 years agosim: testsuite: add support for $pwd replacements
Mike Frysinger [Wed, 17 Nov 2021 01:21:59 +0000 (20:21 -0500)]
sim: testsuite: add support for $pwd replacements

Extend the common test framework to support $pwd replacements in
settings.  This allows replacing the custom cris @exedir@ with it.

3 years agosim: cris: replace @srcdir@ test extension with $srcdir/$subdir
Mike Frysinger [Wed, 17 Nov 2021 01:16:18 +0000 (20:16 -0500)]
sim: cris: replace @srcdir@ test extension with $srcdir/$subdir

The common framework supports $srcdir & $subdir replacements already,
so replace the custom @srcdir@ logic with those.  Since the replace
happens in slurp_options that cris already uses, we don't have any
logic to port over there.  We have to duplicate that into the cris
slurp_rv helper though.

3 years agosim: cris: drop custom "dynamic" test field
Mike Frysinger [Wed, 17 Nov 2021 00:40:00 +0000 (19:40 -0500)]
sim: cris: drop custom "dynamic" test field

This tag is used to force tests to be built dynamically (i.e. without
-static linking).  This is because cris-sim.exp in dejagnu turns on
static linking in ldflags.

The default configs and runtest flags shouldn't load these boards.
If these settings are still needed, we should figure out a different
way of suppressing the stock settings wholesale.  We want these to
all pass out of the box with little to no configuration so that they
can run in a multitarget build.

With dropping "dynamic", it'll be easier to merge the custom cris
test logic with the common sim test logic.

3 years agosim: testsuite: add more silent build rules
Mike Frysinger [Wed, 17 Nov 2021 00:23:58 +0000 (19:23 -0500)]
sim: testsuite: add more silent build rules

site.exp is still verbose, but that comes from automake, so have
to get it fixed upstream.

3 years agoAutomatic date update in version.in
GDB Administrator [Wed, 17 Nov 2021 00:00:05 +0000 (00:00 +0000)]
Automatic date update in version.in