Martin Sebor [Mon, 24 Jan 2022 17:56:23 +0000 (17:56 +0000)]
Fix a proble building the libiberty library with gcc-12.
PR 28779
* regex.c: Suppress -Wuse-after-free.
Andrew Burgess [Mon, 24 Jan 2022 10:33:23 +0000 (10:33 +0000)]
gdb/doc: improve description for Window.click on Python TUI windows
The description of the Window.click method doesn't mention where the
coordinates are anchored (it's the top left corner).
This minor tweak just mentions this point.
Nick Clifton [Mon, 24 Jan 2022 14:22:49 +0000 (14:22 +0000)]
Update Bulgarian, French, Romaniam and Ukranian translation for some of the sub-directories
GDB Administrator [Mon, 24 Jan 2022 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Sun, 23 Jan 2022 19:48:38 +0000 (12:48 -0700)]
Simplify some Rust expression-evaluation code
A few Rust operations do a bit of work in their 'evaluate' functions
and then call another function -- but are also the only caller. This
patch simplifies this code by removing the extra layer.
Tested on x86-64 Fedora 34. I'm checking this in.
H.J. Lu [Sun, 23 Jan 2022 18:40:46 +0000 (10:40 -0800)]
bfd: Partially revert commit
0e3839bde6f
Partially revert
commit
0e3839bde6f93e1e3eefce815be3636e3d81054d
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jan 23 07:29:27 2022 -0800
bfd: Properly install library and header files
PR binutils/28807
* Makefile.am: Revert bfdlib_LTLIBRARIES and bfdinclude_HEADERS
changes.
* Makefile.in: Regenerate.
H.J. Lu [Sun, 23 Jan 2022 15:29:27 +0000 (07:29 -0800)]
bfd: Properly install library and header files
Rename bfdlib_LTLIBRARIES and bfdinclude_HEADERS to lib_LTLIBRARIES and
include_HEADERS to fix the missing installed library and header files in
bfd caused by
commit
bd32be01c997f686ab0b53f0640eaa0aeb61fbd3
Author: Mike Frysinger <vapier@gentoo.org>
Date: Fri Dec 3 00:23:20 2021 -0500
bfd: merge doc subdir up a level
PR binutils/28807
* Makefile.am (bfdlib_LTLIBRARIES): Renamed to ...
(lib_LTLIBRARIES): This.
(bfdinclude_HEADERS): Renamed to ...
(include_HEADERS): This.
* Makefile.in: Regenerate.
* doc/local.mk (install): Removed.
H.J. Lu [Sun, 23 Jan 2022 14:59:20 +0000 (06:59 -0800)]
Regenerate Makefile.in files with automake 1.15.1
Regenerate Makefile.in files with the unmodified automake 1.15.1 to
remove
runstatedir = @runstatedir@
bfd/
* Makefile.in: Regenerate.
binutils/
* Makefile.in: Regenerate.
gas/
* Makefile.in: Regenerate.
gold/
* Makefile.in: Regenerate.
* testsuite/Makefile.in: Likewise.
gprof/
* Makefile.in: Regenerate.
ld/
* Makefile.in: Regenerate.
opcodes/
* Makefile.in: Regenerate.
H.J. Lu [Sun, 23 Jan 2022 13:27:01 +0000 (05:27 -0800)]
Regenerate configure files with autoconf 2.69
Regenerate configure files with the unmodified autoconf 2.69 to remove
--runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
bfd/
* configure: Regenerate.
binutils/
* configure: Regenerate.
gas/
* configure: Regenerate.
gold/
* configure: Regenerate.
gprof/
* configure: Regenerate.
ld/
* configure: Regenerate.
opcodes/
* configure: Regenerate.
GDB Administrator [Sun, 23 Jan 2022 00:00:12 +0000 (00:00 +0000)]
Automatic date update in version.in
Mike Frysinger [Fri, 3 Dec 2021 05:23:20 +0000 (00:23 -0500)]
bfd: merge doc subdir up a level
This avoids a recursive make into the doc subdir and speeds up the
build slightly. It also allows for more parallelism.
Mike Frysinger [Mon, 20 Dec 2021 07:05:31 +0000 (02:05 -0500)]
bfd: rename core.texi to corefile.texi
This is a generated file name from a correspondingly named C file.
Rename it to avoid unique build rules since there's no difference
to the generated manual.
Mike Frysinger [Mon, 20 Dec 2021 06:02:19 +0000 (01:02 -0500)]
bfd: replace doc header generation with pattern rules
This unifies boilerplate rules for most files with pattern rules.
Martin Storsj? [Sat, 22 Jan 2022 14:31:22 +0000 (14:31 +0000)]
Allow inferring tmp_prefix from the dll name from a def file.
Alexander von Gluck IV [Sat, 22 Jan 2022 14:18:34 +0000 (14:18 +0000)]
Adjust default page sizes for haiku arm.
* configure.tgt (arm-haiku): Fix typo.
* emulparams/armelf_haiku.su (MAXPAGESIZE): Use the default value.
(COMMONPAGESIZE): Likewise.
Nick Clifton [Sat, 22 Jan 2022 13:26:54 +0000 (13:26 +0000)]
Update release makeing script with new release numbers
Nick Clifton [Sat, 22 Jan 2022 12:39:28 +0000 (12:39 +0000)]
Change version number to 2.38.50 and regenerate files
Nick Clifton [Sat, 22 Jan 2022 12:08:55 +0000 (12:08 +0000)]
Add markers for 2.38 branch
Lifang Xia [Thu, 20 Jan 2022 02:42:55 +0000 (10:42 +0800)]
RISC-V: create new frag after alignment.
PR 28793:
The alignment may be removed in linker. We need to create new frag after
alignment to prevent the assembler from computing static offsets.
gas/
* config/tc-riscv.c (riscv_frag_align_code): Create new frag.
GDB Administrator [Sat, 22 Jan 2022 00:00:12 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Fri, 21 Jan 2022 16:33:29 +0000 (11:33 -0500)]
gdb: include gdbsupport/buildargv.h in ser-mingw.c
Fixes:
CXX ser-mingw.o
/home/simark/src/binutils-gdb/gdb/ser-mingw.c: In function ‘int pipe_windows_open(serial*, const char*)’:
/home/simark/src/binutils-gdb/gdb/ser-mingw.c:870:3: error: ‘gdb_argv’ was not declared in this scope
870 | gdb_argv argv (name);
| ^~~~~~~~
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28802
Change-Id: I7f3e8ec5f9ca8582d587545fdf6b69901259f199
Nick Clifton [Fri, 21 Jan 2022 15:42:18 +0000 (15:42 +0000)]
Updated Serbian translation for the ld sub-directory
Andrew Burgess [Fri, 21 Jan 2022 12:49:48 +0000 (12:49 +0000)]
gdb/doc: fill in two missing @r
I noticed two places in the docs where we appear to be missing @r.
makeinfo seems to do the correct things despite these being
missing (at least, I couldn't see any difference in the pdf or info
output), but it doesn't hurt to have the @r in place.
Mike Frysinger [Fri, 21 Jan 2022 04:09:42 +0000 (23:09 -0500)]
drop old unused stamp-h.in file
This was needed by ancient versions of automake, but that hasn't been
the case since at least automake-1.5, so punt this from the tree.
Simon Marchi [Fri, 21 Jan 2022 03:57:11 +0000 (22:57 -0500)]
gdbsupport/gdb_regex.cc: replace defs.h include with common-defs.h
This was forgotten when gdb_regex was moved from gdb to gdbsupport.
Change-Id: I73b446f71861cabbf7afdb7408ef9d59fa64b804
GDB Administrator [Fri, 21 Jan 2022 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Thu, 13 Jan 2022 16:48:18 +0000 (09:48 -0700)]
Avoid bad breakpoints with --gc-sections
We found a case where --gc-sections can cause gdb to set an invalid
breakpoint. In the included test case, gdb will set a breakpoint with
two locations, one of which is 0x0.
The code in lnp_state_machine::check_line_address is intended to
filter out this sort of problem, but in this case, the entire CU is
empty, causing unrelocated_lowpc==0x0 -- which circumvents the check.
It seems to me that if a CU is empty like this, then it is ok to
simply ignore the line table, as there won't be any locations anyway.
GDB Administrator [Thu, 20 Jan 2022 00:00:18 +0000 (00:00 +0000)]
Automatic date update in version.in
Maciej W. Rozycki [Wed, 19 Jan 2022 21:55:10 +0000 (21:55 +0000)]
Add `set print array-indexes' tests for C/C++ arrays
Add `set print array-indexes' tests for C/C++ arrays, complementing one
for Fortran arrays.
Maciej W. Rozycki [Wed, 19 Jan 2022 21:55:10 +0000 (21:55 +0000)]
Respect `set print array-indexes' with Fortran arrays
Add `set print array-indexes' handling for Fortran arrays. Currently
the setting is ignored and indices are never shown.
Keep track of the most recent index handled so that any outstanding
repeated elements printed when the limit set by `set print elements' is
hit have the correct index shown.
Output now looks like:
(gdb) set print array-indexes on
(gdb) print array_1d
$1 = ((-2) = 1, (-1) = 1, (0) = 1, (1) = 1, (2) = 1)
(gdb) set print repeats 4
(gdb) set print elements 12
(gdb) print array_2d
$2 = ((-2) = ((-2) = 2, <repeats 5 times>) (-1) = ((-2) = 2, <repeats 5 times>) (0) = ((-2) = 2, (-1) = 2, ...) ...)
(gdb)
for a 5-element vector and a 5 by 5 array filled with the value of 2.
Maciej W. Rozycki [Wed, 19 Jan 2022 21:55:10 +0000 (21:55 +0000)]
Add `set print repeats' tests for C/C++ arrays
Add `set print repeats' tests for C/C++ arrays, complementing one for
Fortran arrays and covering the different interpretation of the `set
print elements' setting in particular where the per-dimension count of
the elements handled is matched against the trigger rather than the
total element count as with Fortran arrays.
Maciej W. Rozycki [Wed, 19 Jan 2022 21:55:10 +0000 (21:55 +0000)]
Respect `set print repeats' with Fortran arrays
Implement `set print repeats' handling for Fortran arrays. Currently
the setting is ignored and always treated as if no limit was set.
Unlike the generic array walker implemented decades ago the Fortran one
is a proper C++ class. Rather than trying to mimic the old walker then,
which turned out a bit of a challenge where interacting with the `set
print elements' setting, write it entirely from scratch, by adding an
extra specialization handler method for processing dimensions other than
the innermost one and letting the specialization class call the `walk_1'
method from the handler as it sees fit. This way repeats can be tracked
and the next inner dimension recursed into as a need arises only, or
unconditionally in the base class.
Keep track of the dimension number being handled in the class rather as
a parameter to the walker so that it does not have to be passed across
by the specialization class.
Use per-dimension element count tracking, needed to terminate processing
early when the limit set by `set print elements' is hit. This requires
extra care too where the limit triggers exactly where another element
that is a subarray begins. In that case rather than recursing we need
to terminate processing or lone `(...)' would be printed. Additionally
if the skipped element is the last one in the current dimension we need
to print `...' by hand, because `continue_walking' won't print it at the
upper level, because it can see the last element has already been taken
care of.
Preserve the existing semantics of `set print elements' where the total
count of the elements handled is matched against the trigger level which
is unlike with the C/C++ array printer where the per-dimension element
count is used instead.
Output now looks like:
(gdb) set print repeats 4
(gdb) print array_2d
$1 = ((2, <repeats 5 times>) <repeats 5 times>)
(gdb) set print elements 12
(gdb) print array_2d
$2 = ((2, <repeats 5 times>) (2, <repeats 5 times>) (2, 2, ...) ...)
(gdb)
for a 5 by 5 array filled with the value of 2.
Amend existing test cases accordingly that rely on the current incorrect
behavior and explicitly request that there be no limit for printing
repeated elements there.
Add suitable test cases as well covering sliced arrays in particular.
Co-Authored-By: Andrew Burgess <andrew.burgess@embecosm.com>
John Baldwin [Wed, 19 Jan 2022 16:30:38 +0000 (08:30 -0800)]
fbsd-nat: Add include for gdb_argv.
Alan Modra [Wed, 19 Jan 2022 02:49:51 +0000 (13:19 +1030)]
PowerPC64 DT_RELR ELFv1
More fun with R_PPC64_NONE found in .opd. Fixed by the
allocate_dynrelocs and ppc64_elf_size_dynamic_sections changes, and
since we are doing ifunc, opd and SYMBOL_REFERENCES_LOCAL tests later,
don't duplicate that work in check_relocs.
* elf64-ppc.c (ppc64_elf_check_relocs): Remove opd and ifunc
conditions for rel_count.
(dec_dynrel_count): Likewise.
(allocate_dynrelocs): Test for opd and ifunc when allocating
relative relocs.
(ppc64_elf_size_dynamic_sections): Likewise.
Alan Modra [Wed, 19 Jan 2022 02:58:04 +0000 (13:28 +1030)]
PowerPC64 DT_RELR local PLT
Similarly to the local GOT case.
* elf64-ppc.c (ppc64_elf_size_dynamic_sections): Don't allocate
space for PLT relocs against local syms when enable_dt_relr.
Alan Modra [Wed, 19 Jan 2022 00:23:53 +0000 (10:53 +1030)]
PowerPC64 DT_RELR local GOT
Fixes another case where we end up with superfluous R_PPC64_NONE.
* elf64-ppc.c (ppc64_elf_size_dynamic_sections): Don't allocate
space for GOT relocs against non-TLS local syms when enable_dt_relr.
(ppc64_elf_layout_multitoc): Likewise.
GDB Administrator [Wed, 19 Jan 2022 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Tue, 18 Jan 2022 23:05:00 +0000 (09:35 +1030)]
Re: PowerPC64 DT_RELR
HJ: "There are 238 R_PPC64_NONEs in libc.so.6 alone."
Indeed, let's make them go away. I had the SYMBOL_REFERENCES_LOCAL
test in the wrong place. check_relocs is too early to know whether a
symbol is dynamic in a shared library. Lots of glibc symbols are made
local by version script, but that doesn't happen until
size_dynamic_sections.
* elf64-ppc.c (ppc64_elf_check_relocs): Don't count relative relocs
here depending on SYMBOL_REFERENCES_LOCAL.
(dec_dynrel_count): Likewise.
(allocate_dynrelocs): Do so here instead.
Tom Tromey [Tue, 18 Jan 2022 21:12:23 +0000 (14:12 -0700)]
Fix the remote-sim.c build
My earlier patch to move gdb_argv broke the remote-sim.c build. This
patch fixes the bug. I'm checking it in.
Simon Marchi [Mon, 17 Jan 2022 02:16:02 +0000 (21:16 -0500)]
gdbserver: introduce remote_debug_printf
Add remote_debug_printf, and use it for all debug messages controlled by
remote_debug.
Change remote_debug to be a bool, which is trivial in this case.
Change-Id: I90de13cb892faec3830047b571661822b126d6e8
Simon Marchi [Mon, 17 Jan 2022 02:27:58 +0000 (21:27 -0500)]
gdbserver: introduce threads_debug_printf, THREADS_SCOPED_DEBUG_ENTER_EXIT
Add the threads_debug_printf and THREADS_SCOPED_DEBUG_ENTER_EXIT, which
use the logging infrastructure from gdbsupport/common-debug.h. Replace
all debug_print uses that are predicated by debug_threads with
threads_dethreads_debug_printf. Replace uses of the debug_enter and
debug_exit macros with THREADS_SCOPED_DEBUG_ENTER_EXIT, which serves
essentially the same purpose, but allows showing what comes between the
enter and the exit in an indented form.
Note that "threads" debug is currently used for a bit of everything in
GDBserver, not only threads related stuff. It should ideally be cleaned
up and separated logically as is done in GDB, but that's out of the
scope of this patch.
Change-Id: I2d4546464462cb4c16f7f1168c5cec5a89f2289a
Simon Marchi [Mon, 17 Jan 2022 02:21:24 +0000 (21:21 -0500)]
gdbserver: turn debug_threads into a boolean
debug_threads is always used as a boolean. Except in ax.cc and
tracepoint.cc. These files have their own macros that use
debug_threads, and have a concept of verbosity level. But they both
have a single level, so it's just a boolean in the end.
Remove this concept of level. If we ever want to re-introduce it, I
think it will be better implemented in a more common location.
Change debug_threads to bool and adjust some users that were treating it
as an int.
Change-Id: I137f596eaf763a08c977dd74417969cedfee9ecf
Tom Tromey [Thu, 13 Jan 2022 01:11:53 +0000 (18:11 -0700)]
Simplify Ada catchpoints
All the Ada catchpoints use the same breakpoint_ops contents, because
the catchpoint itself records its kind. This patch simplifies the
code by removing the redundant ops structures.
Tom Tromey [Wed, 12 Jan 2022 23:13:23 +0000 (16:13 -0700)]
Move "catch exec" to a new file
The "catch exec" code is reasonably self-contained, and so this patch
moves it out of breakpoint.c (the second largest source file in gdb)
and into a new file, break-catch-exec.c.
Tom Tromey [Wed, 12 Jan 2022 23:03:33 +0000 (16:03 -0700)]
Move "catch fork" to a new file
The "catch fork" code is reasonably self-contained, and so this patch
moves it out of breakpoint.c (the second largest source file in gdb)
and into a new file, break-catch-fork.c.
Tom Tromey [Wed, 12 Jan 2022 22:55:50 +0000 (15:55 -0700)]
Unify "catch fork" and "catch vfork"
I noticed that "catch fork" and "catch vfork" are nearly identical.
This patch simplifies the code by unifying these two cases.
Tom Tromey [Sat, 1 Jan 2022 18:31:47 +0000 (11:31 -0700)]
Move gdb_regex to gdbsupport
This moves the gdb_regex convenience class to gdbsupport.
Tom Tromey [Tue, 21 Dec 2021 23:48:38 +0000 (16:48 -0700)]
Introduce gdb-hashtab module in gdbsupport
gdb has some extensions and helpers for working with the libiberty
hash table. This patch consolidates these and moves them to
gdbsupport.
Tom Tromey [Tue, 21 Dec 2021 23:38:32 +0000 (16:38 -0700)]
Move gdb obstack code to gdbsupport
This moves the gdb-specific obstack code -- both extensions like
obconcat and obstack_strdup, and things like auto_obstack -- to
gdbsupport.
Tom Tromey [Wed, 26 Feb 2020 01:14:19 +0000 (18:14 -0700)]
Move gdb_argv to gdbsupport
This moves the gdb_argv class to a new header in gdbsupport.
Tom Tromey [Fri, 14 Jan 2022 16:06:11 +0000 (09:06 -0700)]
Simplify event_location_probe
event_location_probe currently stores two strings, but really only
needs one. This patch simplifies it and removes some unnecessary
copies as well.
Tom Tromey [Fri, 14 Jan 2022 15:53:35 +0000 (08:53 -0700)]
Use std::string in event_location
This changes event_location to use std::string, removing some manual
memory management, and an unnecessary string copy.
Tom Tromey [Fri, 14 Jan 2022 15:29:42 +0000 (08:29 -0700)]
Split event_location into subclasses
event_location uses the old C-style discriminated union approach.
However, it's better to use subclassing, as this makes the code
clearer and removes some chances for error. This also enables future
cleanups to avoid manual memory management and copies.
Tom Tromey [Fri, 14 Jan 2022 14:33:33 +0000 (07:33 -0700)]
Remove EL_* macros from location.c
This patch removes the old-style EL_* macros from location.c. This
cleans up the code by itself, IMO, but also enables further cleanups
in subsequent patches.
Tom Tromey [Fri, 14 Jan 2022 14:26:12 +0000 (07:26 -0700)]
Boolify explicit_to_string_internal
This changes explicit_to_string_internal to use 'bool' rather than
'int'.
Tom Tromey [Fri, 14 Jan 2022 14:24:18 +0000 (07:24 -0700)]
Remove a use of xfree in location.c
This small cleanup removes a use of xfree from location.c, by
switching to unique_xmalloc_ptr. One function is only used in
location.c, so it is made static. And, another function is changed to
avoid a copy.
Simon Marchi [Sun, 16 Jan 2022 04:45:06 +0000 (23:45 -0500)]
gdb: use ptid_t::to_string instead of target_pid_to_str in debug statements
Same idea as
0fab79556484 ("gdb: use ptid_t::to_string in infrun debug
messages"), but throughout GDB.
Change-Id: I62ba36eaef29935316d7187b9b13d7b88491acc1
Andrew Burgess [Wed, 12 Jan 2022 17:13:38 +0000 (17:13 +0000)]
gdb: preserve `|` in connection details string
Consider this GDB session:
$ gdb -q
(gdb) target remote | gdbserver - ~/tmp/hello.x
Remote debugging using | gdbserver - ~/tmp/hello.x
... snip ...
(gdb) info connections
Num What Description
* 1 remote gdbserver - ~/tmp/hello.x Remote target using gdb-specific protocol
(gdb) python conn = gdb.selected_inferior().connection
(gdb) python print(conn.details)
gdbserver - ~/tmp/hello.x
(gdb)
I think there are two things wrong here, first in the "What" column of
the 'info connections' output, I think the text should be:
remote | gdbserver - ~/tmp/hello.x
to correctly show the user how the connection was established. And in
a similar fashion, I think that the `details` string of the
gdb.TargetConnection object should be:
| gdbserver - ~/tmp/hello.x
This commit makes this change. Currently the '|' is detected and
removed in gdb/serial.c. The string passed to the pipe_ops
structure (from gdb/ser-pipe.c), doesn't then, contain the `|`, this
is instead implied by the fact that it is a pipes based implementation
of the serial_ops interface.
After this commit we still detect the `|` in gdb/serial.c, but we now
store the full string (including the `|`) in the serial::name member
variable.
For pipe based serial connections, this name is only used for
displaying the two fields I mention above, and in pipe_open (from
gdb/ser-pipe.c), and in pipe_open, we now know to skip over the `|`.
The benefit I see from this change is that GDB's output now more
accurately reflects the commands used to start a target, thus making
it easier for a user to understand what is going on.
Tiezhu Yang [Tue, 18 Jan 2022 07:17:57 +0000 (15:17 +0800)]
gdb: testsuite: print explicit test result for gdb.base/dfp-test.exp
In the current code, if decimal floating point is not supported for
this target, there is no binary file dfp-test, and also there is no
test result after execute the following commands:
$ make check-gdb TESTS="gdb.base/dfp-test.exp"
$ grep error gdb/testsuite/gdb.log
/home/loongson/gdb.git/gdb/testsuite/gdb.base/dfp-test.c:39:1: error: decimal floating point not supported for this target
[...]
$ cat gdb/testsuite/gdb.sum
[...]
Running target unix
Running /home/loongson/gdb.git/gdb/testsuite/gdb.base/dfp-test.exp ...
=== gdb Summary ===
[...]
With this patch:
$ make check-gdb TESTS="gdb.base/dfp-test.exp"
$ cat gdb/testsuite/gdb.sum
[...]
Running target unix
Running /home/loongson/gdb.git/gdb/testsuite/gdb.base/dfp-test.exp ...
UNSUPPORTED: gdb.base/dfp-test.exp: decimal floating point not supported for this target.
=== gdb Summary ===
# of unsupported tests 1
[...]
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Simon Marchi [Sun, 16 Jan 2022 03:13:07 +0000 (22:13 -0500)]
bfd/elf64-ppc.c: fix clang -Wbitwise-instead-of-logical warning in ppc64_elf_check_init_fini
I see this error with clang-14:
CC elf64-ppc.lo
/home/smarchi/src/binutils-gdb/bfd/elf64-ppc.c:13131:11: error: use of bitwise '&' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
return (check_pasted_section (info, ".init")
~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix by replacing & with &&. But given that the check_pasted_section
function has side-effects and we want to make sure both calls are made,
assign to temporary variables before evaluating the `&&`.
Change-Id: I849e1b2401bea5f4d8ef3ab9af99ba9e3ef42490
Alan Modra [Sun, 21 Nov 2021 23:46:01 +0000 (10:16 +1030)]
PR28029, debuginfod tests
binutils/NEWS says of the change in --process-links semantics:
If other debug section display options are also enabled (eg
--debug-dump=info) then the contents of matching sections in both the main
file and the separate debuginfo file *will* be displayed. This is because in
most cases the debug section will only be present in one of the files.
Implying that debug info is dumped without --process-links. Indeed
that appears to be the case for readelf. This does the same for
objdump.
PR 28029
* objdump.c (dump_bfd): Do not exit early when !is_mainfile
&& !processlinks, instead just exclude non-debug output.
(dump_dwarf): Add is_mainfile parameter and pass to
dump_dwarf_section.
(dump_dwarf_section): Only display debug sections when
!is_mainfile and !process_links.
Alan Modra [Tue, 28 Dec 2021 12:21:55 +0000 (22:51 +1030)]
Check thin archive element file size against archive header
Makes it a little less likely for someone to break their thin archives.
* archive.c (_bfd_get_elt_at_filepos): Check thin archive
element file size.
Alan Modra [Fri, 14 Jan 2022 01:54:22 +0000 (12:24 +1030)]
lang_size_relro_segment tidy
This function has seen too many minimal change style edits.
No functional changes in this patch.
* ldlang.c (lang_size_relro_segment): Tidy.
Alan Modra [Thu, 6 Jan 2022 21:19:16 +0000 (07:49 +1030)]
PowerPC64 DT_RELR
PowerPC64 takes a more traditional approach to DT_RELR than x86. Count
relative relocs in check_relocs, allocate space for them and output in
the usual places but not doing so when enable_dt_relr. DT_RELR is
sized in the existing ppc stub relaxation machinery, run via the
linker's ldemul_after_allocation hook. DT_RELR is output in the same
function that writes ppc stubs, run via ldemul_finish.
This support should be considered experimental.
bfd/
* elf64-ppc.c (struct ppc_local_dyn_relocs): Renamed from
ppc_dyn_relocs. Add rel_count field. Update uses.
(struct ppc_dyn_relocs): New. Replace all uses of elf_dyn_relocs.
(struct ppc_link_hash_table): Add relr_alloc, relr_count and
relr_addr.
(ppc64_elf_copy_indirect_symbol): Merge rel_count.
(ppc64_elf_check_relocs): Init rel_count for global and local syms.
(dec_dynrel_count): Change r_info param to reloc pointer. Update
all callers. Handle decrementing rel_count.
(allocate_got): Don't allocate space for relative relocs when
enable_dt_relr.
(allocate_dynrelocs): Likewise.
(ppc64_elf_size_dynamic_sections): Likewise. Handle srelrdyn.
(ppc_build_one_stub): Don't emit relative relocs on .branch_lt.
(compare_relr_address, append_relr_off): New functions.
(got_and_plt_relr_for_local_syms, got_and_plt_relr): Likewise.
(ppc64_elf_size_stubs): Size .relr.syn.
(ppc64_elf_build_stubs): Emit .relr.dyn.
(build_global_entry_stubs_and_plt): Don't output relative relocs
when enable_dt_relr.
(write_plt_relocs_for_local_syms): Likewise.
(ppc64_elf_relocate_section): Likewise.
binutils/
* testsuite/lib/binutils-common.exp (supports_dt_relr): Add
powerpc64.
ld/
* emulparams/elf64ppc.sh: Source dt-relr.sh.
* testsuite/ld-elf/dt-relr-2b.d: Adjust for powerpc.
* testsuite/ld-elf/dt-relr-2c.d: Likewise.
* testsuite/ld-elf/dt-relr-2d.d: Likewise.
* testsuite/ld-elf/dt-relr-2e.d: Likewise.
Alan Modra [Wed, 12 Jan 2022 13:12:23 +0000 (23:42 +1030)]
tweak __ehdr_start visibility and flags for check_relocs
bfd/
* elf-bfd.h (UNDEFWEAK_NO_DYNAMIC_RELOC): Test linker_def.
ld/
* ldelf.c (ldelf_before_allocation): Don't force __ehdr_start
local and hidden here..
* ldlang.c (lang_symbol_tweaks): ..do so here instead and set
def_regular and linker_def for check_relocs. New function
extracted from lang_process.
GDB Administrator [Tue, 18 Jan 2022 00:00:16 +0000 (00:00 +0000)]
Automatic date update in version.in
Nick Clifton [Mon, 17 Jan 2022 16:21:22 +0000 (16:21 +0000)]
Update the config.guess and config.sub files from the master repository and regenerate files.
Sergey Belyashov [Mon, 17 Jan 2022 13:00:17 +0000 (13:00 +0000)]
Fix Z80 assembly failure.
PR 28762
* app.c (do_scrub_chars): Correct handling when the symbol is not 'af'.
Simon Marchi [Mon, 10 Jan 2022 21:40:54 +0000 (16:40 -0500)]
gdb/infrun: rename variable and move to more specific scope
Move the "started" variable to the scope it's needed, and rename it to
"step_over_started".
Change-Id: I56f3384dbd328f55198063bb855edda10f1492a3
Jan Beulich [Mon, 17 Jan 2022 09:26:43 +0000 (10:26 +0100)]
x86: adjust struct instr_info field types
Now that this lives on the stack, let's have it be a little less
wasteful in terms of space. Switch boolean fields to "bool" (also when
this doesn't change their size) and also limit the widths of "rex",
"rex_used", "op_ad", and "op_index". Do a little bit of re-ordering as
well to limit the number of padding holes.
Jan Beulich [Mon, 17 Jan 2022 09:26:21 +0000 (10:26 +0100)]
x86: drop index16 field
There's a single use on a generally infrequently taken code path. Put
the necessary conditional there instead.
Jan Beulich [Mon, 17 Jan 2022 09:26:01 +0000 (10:26 +0100)]
x86: drop most Intel syntax register name arrays
By making use of, in particular, oappend_maybe_intel() there's no need
for this redundant set of static data.
Jan Beulich [Mon, 17 Jan 2022 09:25:40 +0000 (10:25 +0100)]
x86: fold variables in memory operand index handling
There's no real need for the pseudo-boolean "haveindex" or for separate
32-bit / 64-bit index pointers. Fold them into a single "indexes" and
set that uniformly to AT&T names, compensating by emitting the register
name via oappend_maybe_intel().
Jan Beulich [Mon, 17 Jan 2022 09:25:08 +0000 (10:25 +0100)]
x86: constify disassembler static data
Now that the code is intended to be largely thread-safe, we'd better not
have any writable static objects.
GDB Administrator [Mon, 17 Jan 2022 00:00:25 +0000 (00:00 +0000)]
Automatic date update in version.in
Joel Brobecker [Sun, 16 Jan 2022 09:50:38 +0000 (13:50 +0400)]
gdb/copyright.py: Do not update gdbsupport/Makefile.in
This file is generated, so we should not modify it (any modification
we make is going to be undone at the next re-generation anyway).
GDB Administrator [Sun, 16 Jan 2022 00:00:16 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Sat, 15 Jan 2022 00:00:13 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Fri, 14 Jan 2022 20:09:32 +0000 (15:09 -0500)]
gdb.dlang/demangle.exp: update expected output for _D8demangle4testFnZv
Since commit
ce2d3708bc8b ("Synchronize binutils libiberty sources with
gcc version."), I see this failure:
demangle _D8demangle4testFnZv^M
demangle.test(typeof(null))^M
(gdb) FAIL: gdb.dlang/demangle.exp: _D8demangle4testFnZv
The commit imported the commit
0e32a5aa8bc9 ("libiberty: Add support for
D `typeof(*null)' types") from the gcc repository. That commit includes
an update to libiberty/testsuite/d-demangle-expected, which updates a
test for the exact same mangled name:
_D8demangle4testFnZv
-demangle.test(none)
+demangle.test(typeof(null))
I don't know anything about D, but give that the change was made by Iain
Buclaw, the D language maintainer, I trust him on that.
Fix our test by updating the expected output in the same way.
Note: it's not really useful to have all these D demangling tests in the
GDB testsuite, since there are demangling tests in libiberty. We should
consider removing them, but we first need to make sure that everything
that is covered in gdb/testsuite/gdb.dlang/demangle.exp is also covered
in libiberty/testsuite/d-demangle-expected.
Change-Id: If2b290ea8367b8e1e0b90b20d4a6e0bee517952d
Nils-Christian Kempke [Tue, 11 Jan 2022 17:12:40 +0000 (18:12 +0100)]
gdb/testsuite: enable __INTEL_LLVM_COMPILER preprocessor in get_compiler_info
Intel Next Gen compiler defines preprocessor __INTEL_LLVM_COMPILER and provides
version info in __clang_version__ e.g. value: 12.0.0 (icx 2020.10.0.1113).
gdb/testsuite/ChangeLog:
2020-12-07 Abdul Basit Ijaz <abdul.b.ijaz@intel.com>
* lib/compiler.c: Add Intel next gen compiler pre-processor check.
* lib/compiler.cc: Ditto.
* lib/fortran.exp (fortran_main): Check Intel next gen compiler in
test_compiler_info.
Alan Modra [Fri, 14 Jan 2022 11:25:51 +0000 (21:55 +1030)]
PR28751 mbind2a / mbind2b regressions on powerpc*-linux
include/
* bfdlink.h (struct bfd_link_info): Add commonpagesize_is_set.
ld/
PR 28751
* emultempl/elf.em (handle_option): Set commonpagesize_is_set.
* ldelf.c (ldelf_after_parse): Don't error when only one of
-z max-page-size or -z common-page-size is given, correct the
other value to make it sane.
* testsuite/ld-elf/elf.exp (mbind2a, mbind2b): Do not pass
-z max-page-size.
Jan Beulich [Fri, 14 Jan 2022 09:56:28 +0000 (10:56 +0100)]
x86: drop ymmxmm_mode
This enumerator is not used by any table entry.
Jan Beulich [Fri, 14 Jan 2022 09:56:06 +0000 (10:56 +0100)]
x86: share yet more VEX table entries with EVEX decoding
On top of prior similar work more opportunities have appeared in the
meantime. Note that this also happens to address the prior lack of
decoding of EVEX.L'L for VMOV{L,H}P{S,D} and VMOV{LH,HL}PS.
Jan Beulich [Fri, 14 Jan 2022 09:55:42 +0000 (10:55 +0100)]
x86: consistently use scalar_mode for AVX512-FP16 scalar insns
For some reason the original AVFX512F insns were not taken as a basis
here, causing unnecessary divergence. While not an active issue, it is
still relevant to note that OP_XMM() has special treatment of e.g.
scalar_mode (marking broadcast as invalid). Such would better be
consistent for all sufficiently similar insns.
Jan Beulich [Fri, 14 Jan 2022 09:55:17 +0000 (10:55 +0100)]
x86: record further wrong uses of EVEX.b
For one EVEX.W set does not imply EVEX.b is uniformly valid. Reject it
for modes which occur for insns allowing for EVEX.W to be set (noticed
with VMOV{H,L}PD and VMOVDDUP, and only in AT&T mode, but not checked
whether further insns would also have been impacted; I expect e.g.
VCMPSD would have had the same issue). And then the present concept of
broadcast makes no sense at all when the memory operand of an insn is
the destination.
Jan Beulich [Fri, 14 Jan 2022 09:54:55 +0000 (10:54 +0100)]
x86: reduce AVX512 FP set of insns decoded through vex_w_table[]
Like for AVX512-FP16, there's not that many FP insns where going through
this table is easier / cheaper than using suitable macros. Utilize %XS
and %XD more to eliminate a fair number of table entries.
While doing this I noticed a few anomalies. Where lines get touched /
moved anyway, these are being addressed right here:
- vmovshdup used EXx for its 2nd operand, thus displaying seemingly
valid broadcast when EVEX.b is set with a memory operand; use
EXEvexXNoBcst instead just like vmovsldup already does
- vmovlhps used EXx for its 3rd operand, when all sibling entries use
EXq; switch to EXq there for consistency (the two differ only for
memory operands)
Jan Beulich [Fri, 14 Jan 2022 09:54:21 +0000 (10:54 +0100)]
x86: reduce AVX512-FP16 set of insns decoded through vex_w_table[]
Like already indicated during review of the original submission, there's
really only very few insns where going through this table is easier /
cheaper than using suitable macros. Utilize %XH more and introduce
similar %XS and %XD (which subsequently can be used for further table
size reduction).
While there also switch to using oappend() in 'XH' macro processing.
GDB Administrator [Fri, 14 Jan 2022 00:00:27 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Thu, 13 Jan 2022 14:11:23 +0000 (06:11 -0800)]
ld: Disable DT_RELR in some -z relro tests
Disable DT_RELR in the following -z relro tests which don't expect
DT_RELR in linker outputs.
* testsuite/ld-i386/pr20830.d: Pass $NO_DT_RELR_LDFLAGS to ld.
* testsuite/ld-x86-64/pr20830a-now.d: Likewise.
* testsuite/ld-x86-64/pr20830a.d: Likewise.
* testsuite/ld-x86-64/pr20830b-now.d: Likewise.
* testsuite/ld-x86-64/pr20830b.d: Likewise.
* testsuite/ld-x86-64/pr21038a-now.d: Likewise.
* testsuite/ld-x86-64/pr21038a.d: Likewise.
* testsuite/ld-x86-64/pr21038b-now.d: Likewise.
* testsuite/ld-x86-64/pr21038c-now.d: Likewise.
* testsuite/ld-x86-64/pr21038c.d: Likewise.
H.J. Lu [Thu, 13 Jan 2022 13:43:05 +0000 (05:43 -0800)]
Reapply libiberty: Pass --plugin to AR and RANLIB
Reapply the patch to detect GCC LTO plugin used for libiberty build to
support LTO build in libiberty.
* Makefile.in (AR): Add @AR_PLUGIN_OPTION@
(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
(configure_deps): Depend on ../config/gcc-plugin.m4.
* aclocal.m4: Include ../config/gcc-plugin.m4.
* configure.ac: AC_SUBST AR_PLUGIN_OPTION and
RANLIB_PLUGIN_OPTION.
* configure: Regenerate.
H.J. Lu [Mon, 10 Jan 2022 23:26:18 +0000 (15:26 -0800)]
elf: Remove the 1-page gap before the RELRO segment
The existing RELRO scheme may leave a 1-page gap before the RELRO segment
and align the end of the RELRO segment to the page size:
[18] .eh_frame PROGBITS 408fa0 008fa0 005e80 00 A 0 0 8
[19] .init_array INIT_ARRAY 410de0 00fde0 000008 08 WA 0 0 8
[20] .fini_array FINI_ARRAY 410de8 00fde8 000008 08 WA 0 0 8
[21] .dynamic DYNAMIC 410df0 00fdf0 000200 10 WA 7 0 8
[22] .got PROGBITS 410ff0 00fff0 000010 08 WA 0 0 8
[23] .got.plt PROGBITS 411000 010000 000048 08 WA 0 0 8
Instead, we can remove the 1-page gap if the maximum page size >= the
maximum section alignment:
[18] .eh_frame PROGBITS 408fa0 008fa0 005e80 00 A 0 0 8
[19] .init_array INIT_ARRAY 40fde0 00fde0 000008 08 WA 0 0 8
[20] .fini_array FINI_ARRAY 40fde8 00fde8 000008 08 WA 0 0 8
[21] .dynamic DYNAMIC 40fdf0 00fdf0 000200 10 WA 7 0 8
[22] .got PROGBITS 40fff0 00fff0 000010 08 WA 0 0 8
[23] .got.plt PROGBITS 410000 010000 000048 08 WA 0 0 8
Because the end of the RELRO segment is always aligned to the page size
and may not be moved, the RELRO segment size may be increased:
[ 3] .dynstr STRTAB 000148 000148 000001 00 A 0 0 1
[ 4] .eh_frame PROGBITS 000150 000150 000000 00 A 0 0 8
[ 5] .init_array INIT_ARRAY 200150 000150 000010 08 WA 0 0 1
[ 6] .fini_array FINI_ARRAY 200160 000160 000010 08 WA 0 0 1
[ 7] .jcr PROGBITS 200170 000170 000008 00 WA 0 0 1
[ 8] .data.rel.ro PROGBITS 200180 000180 000020 00 WA 0 0 16
[ 9] .dynamic DYNAMIC 2001a0 0001a0 0001c0 10 WA 3 0 8
[10] .got PROGBITS 200360 000360 0002a8 00 WA 0 0 8
[11] .bss NOBITS 201000 000608 000840 00 WA 0 0 1
vs the old section layout:
[ 3] .dynstr STRTAB 000148 000148 000001 00 A 0 0 1
[ 4] .eh_frame PROGBITS 000150 000150 000000 00 A 0 0 8
[ 5] .init_array INIT_ARRAY 200b48 000b48 000010 08 WA 0 0 1
[ 6] .fini_array FINI_ARRAY 200b58 000b58 000010 08 WA 0 0 1
[ 7] .jcr PROGBITS 200b68 000b68 000008 00 WA 0 0 1
[ 8] .data.rel.ro PROGBITS 200b70 000b70 000020 00 WA 0 0 16
[ 9] .dynamic DYNAMIC 200b90 000b90 0001c0 10 WA 3 0 8
[10] .got PROGBITS 200d50 000d50 0002a8 00 WA 0 0 8
[11] .bss NOBITS 201000 000ff8 000840 00 WA 0 0 1
But there is no 1-page gap.
PR ld/28743
* ldlang.c (lang_size_relro_segment_1): Remove the 1-page gap
before the RELRO segment if the maximum page size >= the maximum
section alignment.
* testsuite/ld-i386/pr20830.d: Adjusted.
* testsuite/ld-s390/gotreloc_64-relro-1.dd: Likewise.
* testsuite/ld-x86-64/pr14207.d: Likewise.
* testsuite/ld-x86-64/pr18176.d: Likewise.
* testsuite/ld-x86-64/pr20830a-now.d: Likewise.
* testsuite/ld-x86-64/pr20830a.d: Likewise.
* testsuite/ld-x86-64/pr20830b-now.d: Likewise.
* testsuite/ld-x86-64/pr20830b.d: Likewise.
* testsuite/ld-x86-64/pr21038a-now.d: Likewise.
* testsuite/ld-x86-64/pr21038a.d: Likewise.
* testsuite/ld-x86-64/pr21038b-now.d: Likewise.
* testsuite/ld-x86-64/pr21038c-now.d: Likewise.
* testsuite/ld-x86-64/pr21038c.d: Likewise.
Nick Clifton [Thu, 13 Jan 2022 12:25:34 +0000 (12:25 +0000)]
Synchronize binutils libiberty sources with gcc version.
+2021-12-30 Lancelot SIX <lsix@lancelotsix.com>
+
+ * cp-demangle.c (d_clone_suffix): Support digits in clone tag
+ names.
+ * testsuite/demangle-expected: Check demangling of clone symbols
+ with digits in name.
+
+2021-12-16 H.J. Lu <hjl.tools@gmail.com>
+
+ Revert:
+ 2021-12-16 H.J. Lu <hjl.tools@gmail.com>
+
+ * Makefile.in (AR): Add @AR_PLUGIN_OPTION@
+ (RANLIB): Add @RANLIB_PLUGIN_OPTION@.
+ (configure_deps): Depend on ../config/gcc-plugin.m4.
+ * configure.ac: AC_SUBST AR_PLUGIN_OPTION and
+ RANLIB_PLUGIN_OPTION.
+ * aclocal.m4: Regenerated.
+ * configure: Likewise.
+
+2021-12-15 H.J. Lu <hjl.tools@gmail.com>
+
+ * Makefile.in (AR): Add @AR_PLUGIN_OPTION@
+ (RANLIB): Add @RANLIB_PLUGIN_OPTION@.
+ (configure_deps): Depend on ../config/gcc-plugin.m4.
+ * configure.ac: AC_SUBST AR_PLUGIN_OPTION and
+ RANLIB_PLUGIN_OPTION.
+ * aclocal.m4: Regenerated.
+ * configure: Likewise.
+
+2021-11-29 Eric Gallager <egallager@gcc.gnu.org>
+
+ PR other/103021
+ * Makefile.in: Use ETAGS variable in TAGS target.
+ * configure: Regenerate.
+ * configure.ac: Allow ETAGS variable to be overridden.
+
+2021-11-29 Andrew Pinski <apinski@marvell.com>
+
+ * make-temp-file.c (try_dir): Check to see if the dir
+ is actually a directory.
+
+2021-10-22 Eric Gallager <egallager@gcc.gnu.org>
+
+ PR other/102663
+ * Makefile.in: Allow dvi-formatted documentation
+ to be installed.
+
+2021-10-17 Lu?s Ferreira <contact@lsferreira.net>
+
+ PR d/102618
+ * d-demangle.c (dlang_parse_qualified): Handle anonymous
+ symbols correctly.
+ * testsuite/d-demangle-expected: New tests to cover anonymous
+ symbols.
+
+2021-10-14 Lu?s Ferreira <contact@lsferreira.net>
+
+ * testsuite/d-demangle-expected: Add test case for function literals.
+
+2021-10-14 Lu?s Ferreira <contact@lsferreira.net>
+
+ * testsuite/d-demangle-expected: Add test cases for simple special
+ mangles.
+
+2021-10-12 Lu?s Ferreira <contact@lsferreira.net>
+
+ * d-demangle.c (dlang_parse_qualified): Remove redudant parenthesis
+ around lhs and rhs of assignments.
+
+2021-10-01 Lu?s Ferreira <contact@lsferreira.net>
+
+ * testsuite/d-demangle-expected: Add missing format for new test
+
+2021-09-23 Lu?s Ferreira <contact@lsferreira.net>
+
+ * d-demangle.c (dlang_Type): Validate MANGLED is nonnull.
+ * testsuite/d-demangle-expected: New test.
+
+2021-09-23 Lu?s Ferreira <contact@lsferreira.net>
+
+ * d-demangle.c (dlang_symbol_backref): Ensure strlen of
+ string is less than length computed by dlang_number.
+
+2021-09-01 Iain Sandoe <iain@sandoe.co.uk>
* configure: Regenerate.
+ * configure.ac: Do not search for sbrk on Darwin.
+ * xmalloc.c: Do not declare sbrk unless it has been found
+ by configure.
+
+2021-08-29 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * d-demangle.c (dlang_identifier): Skip over fake parent manglings.
+ * testsuite/d-demangle-expected: Add tests.
+
+2021-08-29 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * d-demangle.c (dlang_parse_arrayliteral): Add 'info' parameter.
+ (dlang_parse_assocarray): Likewise.
+ (dlang_parse_structlit): Likewise.
+ (dlang_value): Likewise. Handle function literal symbols.
+ (dlang_template_args): Pass 'info' to dlang_value.
+ * testsuite/d-demangle-expected: Add new test.
+
+2021-08-29 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * d-demangle.c (dlang_attributes): Handle typeof(*null).
+ (dlang_type): Likewise. Demangle 'n' as typeof(null).
+ * testsuite/d-demangle-expected: Update tests.
+
+2021-08-23 Iain Sandoe <iain@sandoe.co.uk>
+
+ * simple-object-mach-o.c (simple_object_mach_o_write_segment):
+ Cast the first argument to set_32 as needed.
-2021-07-03 Nick Clifton <nickc@redhat.com>
+2021-08-18 Iain Sandoe <iain@sandoe.co.uk>
+ * simple-object-mach-o.c (simple_object_mach_o_write_segment):
+ Arrange to swap the LTO index tables where needed.
# Please enter the commit message for your changes. Lines starting
Andrew Burgess [Mon, 10 Jan 2022 17:17:23 +0000 (17:17 +0000)]
gdb: don't use -Wmissing-prototypes with g++
This commit aims to not make use of -Wmissing-prototypes when
compiling with g++.
Use of -Wmissing-prototypes was added with this commit:
commit
a0761e34f054767de6d6389929d27e9015fb299b
Date: Wed Mar 11 15:15:12 2020 -0400
gdb: enable -Wmissing-prototypes warning
Because clang can provide helpful warnings with this flag.
Unfortunately, g++ doesn't accept this flag, and will give this
warning:
cc1plus: warning: command line option ‘-Wmissing-prototypes’ is valid for C/ObjC but not for C++
In theory the fact that this flag is not supported should be detected
by the configure check in gdbsupport/warning.m4, but for users of
ccache, this check doesn't work due to a long standing ccache issue:
https://github.com/ccache/ccache/issues/738
The ccache problem is that -W... options are reordered on the command
line, and so -Wmissing-prototypes is seen before -Werror. Usually
this doesn't matter, but the above warning (about the flag not being
valid) is issued before the -Werror flag is processed, and so is not
fatal.
There have been two previous attempts to fix this that I'm aware of.
The first is:
https://sourceware.org/pipermail/gdb-patches/2021-September/182148.html
In this attempt, instead of just relying on a compile to check if a
flag is valid, the proposal was to both compile and link. As linking
doesn't go through ccache, we don't suffer from the argument
reordering problem, and the link phase will correctly fail when using
-Wmissing-prototypes with g++. The configure script will then disable
the use of this flag.
This approach was rejected, and the suggestion was to only add the
-Wmissing-prototypes flag if we are compiling with gcc.
The second attempt, attempts this approach, and can be found here:
https://sourceware.org/pipermail/gdb-patches/2021-November/183076.html
This attempt only adds the -Wmissing-prototypes flag is the value of
GCC is not 'yes'. This feels like it is doing the right thing,
unfortunately, the GCC flag is really a 'is gcc like' flag, not a
strict, is gcc check. As such, GCC is set to 'yes' for clang, which
would mean the flag was not included for clang or gcc. The entire
point of the original commit was to add this flag for clang, so
clearly the second attempt is not sufficient either.
In this new attempt I have added gdbsupport/compiler-type.m4, this
file defines AM_GDB_COMPILER_TYPE. This macro sets the variable
GDB_COMPILER_TYPE to either 'gcc', 'clang', or 'unknown'. In future
the list of values might be extended to cover other compilers, if this
is ever useful.
I've then modified gdbsupport/warning.m4 to only add the problematic
-Wmissing-prototypes flag if GDB_COMPILER_TYPE is not 'gcc'.
I've tested this with both gcc and clang and see the expected results,
gcc no longer attempts to use the -Wmissing-prototypes flag, while
clang continues to use it.
When compiling using ccache, I am no longer seeing the warning.
Andrew Burgess [Tue, 11 Jan 2022 17:31:16 +0000 (17:31 +0000)]
gdb: add some extra debug information to attach_command
While working on another patch I wanted to add some extra debug
information to the attach_command function. This required me to add a
new function to convert the thread_info::state variable to a string.
The new debug might be useful to others, and the state to string
function might be useful in other locations, so I thought I'd merge
it.
Alan Modra [Thu, 13 Jan 2022 05:12:13 +0000 (15:42 +1030)]
Re: gas: add visibility support using GNU syntax on XCOFF
tc-ppc.c: In function 'ppc_comm':
tc-ppc.c:4560:40: error: 'visibility' may be used uninitialized in this function [-Werror=maybe-uninitialized]
With that fixed we hit lots of segfaults in the ld testsuite.
PR 22085
bfd/
* xcofflink.c (xcoff_link_input_bfd): Don't segfault on NULL
sym_hash.
gas/
* config/tc-ppc.c (ppc_comm): Init visibility.
Alan Modra [Thu, 13 Jan 2022 06:04:07 +0000 (16:34 +1030)]
dt-relr.exp --no-as-needed
Otherwise the very simple test may not be linked with libc.so at all,
and thus correctly have no version reference added. Causing failure
of the dt-relr-glibc-1b.so test.
* testsuite/ld-elf/dt-relr.exp: Link with --no-as-needed.
Alan Modra [Thu, 13 Jan 2022 05:14:51 +0000 (15:44 +1030)]
Correct .relr.dyn nocombreloc script
* scripttempl/elf.sc (.relr.dyn): Don't depend on $COMBRELOC.
Alan Modra [Thu, 13 Jan 2022 02:21:12 +0000 (12:51 +1030)]
testsuite supports_dt_relr
Tidy, and fix "FAIL: Build dt-relr-glibc-1b.so" on all non-x86
linux targets.
binutils/
* binutils-common.exp (supports_dt_relr): New proc.
ld/
* testsuite/config/default.exp (DT_RELR_LDFLAGS, NO_DT_RELR_LDFLAGS),
(DT_RELR_CC_LDFLAGS, NO_DT_RELR_CC_LDFLAGS): Use supports_dt_relr.
* testsuite/ld-elf/dt-relr.exp: Don't run unless supports_dt_relr.
* testsuite/ld-elf/dt-relr-1a.d: Likewise.
* testsuite/ld-elf/dt-relr-1b.d: Likewise.
* testsuite/ld-elf/dt-relr-1c.d: Likewise.
* testsuite/ld-elf/dt-relr-2a.d: Likewise.
* testsuite/ld-elf/dt-relr-2b.d: Likewise.
* testsuite/ld-elf/dt-relr-2c.d: Likewise.
* testsuite/ld-elf/dt-relr-2d.d: Likewise.
* testsuite/ld-elf/dt-relr-2e.d: Likewise.
* testsuite/ld-elf/dt-relr-2f.d: Likewise.
* testsuite/ld-elf/dt-relr-2g.d: Likewise.
* testsuite/ld-elf/dt-relr-2h.d: Likewise.
* testsuite/ld-elf/dt-relr-3a.d: Likewise.
* testsuite/ld-elf/dt-relr-3b.d: Likewise.
Alan Modra [Thu, 13 Jan 2022 01:45:45 +0000 (12:15 +1030)]
Don't use C++ comments in assembly
It might seem to work, but only if '/' is a start of comment char.
* testsuite/ld-elf/dt-relr-1.s: Use # for comment.
* testsuite/ld-elf/dt-relr-2.s: Likewise.
* testsuite/ld-elf/dt-relr-3.s: Likewise.
Alan Modra [Thu, 13 Jan 2022 00:29:30 +0000 (10:59 +1030)]
Move DT_RELR tag setting to elflink.c
This makes the code setting DT_RELR tags generally available. Many
targets will be able to use the defaults. Those that can't should set
up sh_entsize for .relr.dyn output section before reaching the dynamic
tag code in bfd_elf_final_link.
* elflink.c (bfd_elf_final_link): Set up DT_RELR tags and sh_entsize.
* elfxx-x86.c (_bfd_x86_elf_finish_dynamic_sections): Don't do any
of that here.