2020-10-26 09:08:49 +08:00
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2020-10-25 Simon Marchi <simon.marchi@polymtl.ca>
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* Makefile.in: Re-generate.
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* acinclude.m4: Update ptrace.m4 path.
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* ptrace.m4: Move here.
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2020-07-20 21:18:04 +08:00
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2020-10-08 Andrew Burgess <andrew.burgess@embecosm.com>
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* tdesc.h (allocate_target_description): Update return type.
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2020-10-08 02:07:55 +08:00
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2020-10-07 Tom Tromey <tromey@adacore.com>
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* Makefile.in: Rebuild.
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* Makefile.am (libgdbsupport_a_SOURCES): Add search.cc.
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* search.h: New file.
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* search.cc: New file.
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2020-10-03 02:44:40 +08:00
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2020-10-02 Simon Marchi <simon.marchi@polymtl.ca>
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* event-loop.h (debug_event_loop): New variable declaration.
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(event_loop_debug_printf_1): New function declaration.
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(event_loop_debug_printf): New macro.
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* event-loop.cc (debug_event_loop): New variable.
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(handle_file_event): Add debug print.
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(event_loop_debug_printf_1): New function.
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2020-10-03 02:44:39 +08:00
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2020-10-02 Simon Marchi <simon.marchi@polymtl.ca>
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* common-debug.cc (debug_prefixed_vprintf): Move here.
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* common-debug.h (debug_prefixed_vprintf): Move here.
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2020-10-03 02:45:52 +08:00
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2020-10-02 Simon Marchi <simon.marchi@polymtl.ca>
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* event-loop.h (add_file_handler): Add "name" parameter.
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* event-loop.cc (struct file_handler) <name>: New field.
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(create_file_handler): Add "name" parameter, assign it to file
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handler.
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(add_file_handler): Add "name" parameter.
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2020-09-23 10:20:05 +08:00
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2020-10-01 Kamil Rytarowski <n54@gmx.com>
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* agent.cc (gdb_connect_sync_socket): Preinitialize addr with zeros.
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Tweak gdbsupport/valid-expr.h for GCC 6, fix build
With GCC 6.4 and 6.5 (at least), unit tests that use
gdbsupport/valid-expr.h's CHECK_VALID fail to compile, with:
In file included from src/gdb/unittests/offset-type-selftests.c:24:0:
src/gdb/unittests/offset-type-selftests.c: In substitution of 'template<class Expected, template<class ...> class Op, class ... Args> using is_detected_exact = std::is_same<Expected, typename gdb::detection_detail::detector<gdb::nonesuch, void, Op, Args ...>::type> [with Expected = selftests::offset_type::off_A&; Op = selftests::offset_type::check_valid_expr75::archetype; Args = {selftests::offset_type::off_A, selftests::offset_type::off_B}]':
src/gdb/unittests/offset-type-selftests.c:75:1: required from here
src/gdb/../gdbsupport/valid-expr.h:65:20: error: type/value mismatch at argument 2 in template parameter list for 'template<class Expected, template<class ...> class Op, class ... Args> using is_detected_exact = std::is_same<Expected, typename gdb::detection_detail::detector<gdb::nonesuch, void, Op, Args ...>::type>'
archetype, TYPES>::value == VALID, \
^
The important part is the "error: type/value mismatch" error. Seems
like that GCC doesn't understand that archetype is an alias template,
and is being strict in requiring a template class.
The fix here is then to make archetype a template class, to pacify
GCC. The resulting code looks like this:
template <TYPENAMES, typename = decltype (EXPR)>
struct archetype
{
};
static_assert (gdb::is_detected_exact<archetype<TYPES, EXPR_TYPE>,
archetype, TYPES>::value == VALID, "");
is_detected_exact<Expected, Op, Args> checks whether Op<Args> is type
Expected:
- For Expected, we pass the explicit EXPR_TYPE, overriding the
default parameter type of archetype.
- For Args we don't pass the last template parameter, so archtype
defaults to the EXPR's decltype.
So in essence, we're really checking whether EXPR_TYPE is the same as
decltype(EXPR).
We need to do the decltype in a template context in order to trigger
SFINAE instead of failing to compile.
The hunk in unittests/enum-flags-selftests.c becomes necessary,
because unlike with the current alias template version, this new
version makes GCC trigger -Wenum-compare warnings as well:
src/gdb/unittests/enum-flags-selftests.c:328:33: error: comparison between 'enum selftests::enum_flags_tests::RE' and 'enum selftests::enum_flags_tests::RE2' [-Werror=enum-compare]
CHECK_VALID (true, bool, RE () != RE2 ())
^
src/gdb/../gdbsupport/valid-expr.h:61:45: note: in definition of macro 'CHECK_VALID_EXPR_INT'
template <TYPENAMES, typename = decltype (EXPR)> \
^
Build-tested with:
- GCC {4.8.5, 6.4, 6.5, 7.3.1, 9.3.0, 11.0.0-20200910}
- Clang 10.0.0
gdbsupport/ChangeLog:
* valid-expr.h (CHECK_VALID_EXPR_INT): Make archetype a template
class instead of an alias template and adjust static_assert.
gdb/ChangeLog:
* unittests/enum-flags-selftests.c: Check whether __GNUC__ is
defined before using '#pragma GCC diagnostic' instead of checking
__clang__.
2020-09-30 03:08:51 +08:00
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2020-09-29 Pedro Alves <pedro@palves.net>
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* valid-expr.h (CHECK_VALID_EXPR_INT): Make archetype a template
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class instead of an alias template and adjust static_assert.
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2020-09-25 03:19:46 +08:00
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2020-09-24 Simon Marchi <simon.marchi@efficios.com>
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* event-loop.c (struct file_handler): Remove typedef, re-format.
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2020-09-17 02:40:05 +08:00
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2020-09-16 John Baldwin <jhb@FreeBSD.org>
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* common.m4 (GDB_AC_COMMON): Refactor checks for kinfo_getfile().
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* configure, config.in: Regenerate.
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Rewrite enum_flags, add unit tests, fix problems
This patch started by adding comprehensive unit tests for enum_flags.
For the testing part, it adds:
- tests of normal expected uses of the API.
- checks that _invalid_ uses of the API would fail to compile. I.e.,
it validates that enum_flags really is a strong type, and that
incorrect mixing of enum types would be caught at compile time. It
pulls that off making use of SFINEA and C++11's decltype/constexpr.
This revealed many holes in the enum_flags API. For example, the f1
assignment below currently incorrectly fails to compile:
enum_flags<flags> f1 = FLAG1;
enum_flags<flags> f2 = FLAG2 | f1;
The unit tests also revealed that this useful use case doesn't work:
enum flag { FLAG1 = 1, FLAG2 = 2 };
enum_flags<flag> src = FLAG1;
enum_flags<flag> f1 = condition ? src : FLAG2;
It fails to compile because enum_flags<flag> and flag are convertible
to each other.
Turns out that making enum_flags be implicitly convertible to the
backing raw enum type was not a good idea.
If we make it convertible to the underlying type instead, we fix that
ternary operator use case, and, we find cases throughout the codebase
that should be using the enum_flags but were using the raw backing
enum instead. So it's a good change overall.
Also, several operators were missing.
These holes and more are plugged by this patch, by reworking how the
enum_flags operators are implemented, and making use of C++11's
feature of being able to delete methods/functions.
There are cases in gdb/compile/ where we need to call a function in a
C plugin API that expects the raw enum. To address cases like that,
this adds a "raw()" method to enum_flags. This way we can keep using
the safer enum_flags to construct the value, and then be explicit when
we need to get at the raw enum.
This makes most of the enum_flags operators constexpr. Beyond
enabling more compiler optimizations and enabling the new unit tests,
this has other advantages, like making it possible to use operator|
with enum_flags values in switch cases, where only compile-time
constants are allowed:
enum_flags<flags> f = FLAG1 | FLAG2;
switch (f)
{
case FLAG1 | FLAG2:
break;
}
Currently that fails to compile.
It also switches to a different mechanism of enabling the global
operators. The current mechanism isn't namespace friendly, the new
one is.
It also switches to C++11-style SFINAE -- instead of wrapping the
return type in a SFINAE-friently structure, we use an unnamed template
parameter. I.e., this:
template <typename enum_type,
typename = is_enum_flags_enum_type_t<enum_type>>
enum_type
operator& (enum_type e1, enum_type e2)
instead of:
template <typename enum_type>
typename enum_flags_type<enum_type>::type
operator& (enum_type e1, enum_type e2)
Note that the static_assert inside operator~() was converted to a
couple overloads (signed vs unsigned), because static_assert is too
late for SFINAE-based tests, which is important for the CHECK_VALID
unit tests.
Tested with gcc {4.8, 7.1, 9.3} and clang {5.0.2, 10.0.0}.
gdb/ChangeLog:
* Makefile.in (SELFTESTS_SRCS): Add
unittests/enum-flags-selftests.c.
* btrace.c (ftrace_update_caller, ftrace_fixup_calle): Use
btrace_function_flags instead of enum btrace_function_flag.
* compile/compile-c-types.c (convert_qualified): Use
enum_flags::raw.
* compile/compile-cplus-symbols.c (convert_one_symbol)
(convert_symbol_bmsym):
* compile/compile-cplus-types.c (compile_cplus_convert_method)
(compile_cplus_convert_struct_or_union_methods)
(compile_cplus_instance::convert_qualified_base):
* go-exp.y (parse_string_or_char): Add cast to int.
* unittests/enum-flags-selftests.c: New file.
* record-btrace.c (btrace_thread_flag_to_str): Change parameter's
type to btrace_thread_flags from btrace_thread_flag.
(record_btrace_cancel_resume, record_btrace_step_thread): Change
local's type to btrace_thread_flags from btrace_thread_flag. Add
cast in DEBUG call.
gdbsupport/ChangeLog:
* enum-flags.h: Include "traits.h".
(DEF_ENUM_FLAGS_TYPE): Declare a function instead of defining a
structure.
(enum_underlying_type): Update comment.
(namespace enum_flags_detail): New. Move struct zero_type here.
(EnumIsUnsigned, EnumIsSigned): New.
(class enum_flags): Make most methods constexpr.
(operator&=, operator|=, operator^=): Take an enum_flags instead
of an enum_type. Make rvalue ref versions deleted.
(operator enum_type()): Delete.
(operator&, operator|, operator^, operator~): Delete, moved out of
class.
(raw()): New method.
(is_enum_flags_enum_type_t): Declare.
(ENUM_FLAGS_GEN_BINOP, ENUM_FLAGS_GEN_COMPOUND_ASSIGN)
(ENUM_FLAGS_GEN_COMP): New. Use them to reimplement global
operators.
(operator~): Now constexpr and reimplemented.
(operator<<, operator>>): New deleted functions.
* valid-expr.h (CHECK_VALID_EXPR_5, CHECK_VALID_EXPR_6): New.
2020-09-15 04:16:59 +08:00
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2020-09-14 Pedro Alves <pedro@palves.net>
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* enum-flags.h: Include "traits.h".
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(DEF_ENUM_FLAGS_TYPE): Declare a function instead of defining a
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structure.
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(enum_underlying_type): Update comment.
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(namespace enum_flags_detail): New. Move struct zero_type here.
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(EnumIsUnsigned, EnumIsSigned): New.
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(class enum_flags): Make most methods constexpr.
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(operator&=, operator|=, operator^=): Take an enum_flags instead
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of an enum_type. Make rvalue ref versions deleted.
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(operator enum_type()): Delete.
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(operator&, operator|, operator^, operator~): Delete, moved out of
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class.
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(raw()): New method.
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(is_enum_flags_enum_type_t): Declare.
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(ENUM_FLAGS_GEN_BINOP, ENUM_FLAGS_GEN_COMPOUND_ASSIGN)
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(ENUM_FLAGS_GEN_COMP): New. Use them to reimplement global
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operators.
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(operator~): Now constexpr and reimplemented.
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(operator<<, operator>>): New deleted functions.
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* valid-expr.h (CHECK_VALID_EXPR_5, CHECK_VALID_EXPR_6): New.
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Rewrite valid-expr.h's internals in terms of the detection idiom (C++17/N4502)
An earlier attempt at doing this had failed (wouldn't work in GCCs
around 4.8, IIRC), but now that I try again, it works. I suspect that
my previous attempt did not use the pre C++14-safe void_t (in
traits.h).
I want to switch to this model because:
- It's the standard detection idiom that folks will learn starting
with C++17.
- In the enum_flags unit tests, I have a static_assert that triggers
a warning (resulting in build error), which GCC does not suppress
because the warning is not being triggered in the SFINAE context.
Switching to the detection idiom fixes that. Alternatively,
switching to the C++03-style expression-validity checking with a
varargs overload would allow addressing that, but I think that
would be going backwards idiomatically speaking.
- While this patch shows a net increase of lines of code, the magic
being added to traits.h can be removed in a few years when we start
requiring C++17.
gdbsupport/ChangeLog:
* traits.h (struct nonesuch, struct detector, detected_or)
(detected_or_t, is_detected, detected_t, detected_or)
(detected_or_t, is_detected_exact, is_detected_convertible): New.
* valid-expr.h (CHECK_VALID_EXPR_INT): Use gdb::is_detected_exact.
2020-09-15 04:16:57 +08:00
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2020-09-14 Pedro Alves <pedro@palves.net>
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* traits.h (struct nonesuch, struct detector, detected_or)
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(detected_or_t, is_detected, detected_t, detected_or)
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(detected_or_t, is_detected_exact, is_detected_convertible): New.
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* valid-expr.h (CHECK_VALID_EXPR_INT): Use gdb::is_detected_exact.
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2020-09-03 00:20:53 +08:00
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2020-09-10 Kamil Rytarowski <n54@gmx.com>
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* eintr.h: New file.
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gdb: allow specifying multiple filters when running selftests
I found myself wanting to run a few specific selftests while developing.
I thought it would be nice to be able to provide multiple test names
when running `maintenant selftests`. The arguments to that command is
currently interpreted as a single filter (not split by spaces), it now
becomes a list a filters, split by spaces. A test is executed when it
matches at least one filter.
Here's an example of the result in GDB:
(gdb) maintenance selftest xml
Running selftest xml_escape_text.
Running selftest xml_escape_text_append.
Ran 2 unit tests, 0 failed
(gdb) maintenance selftest xml unord
Running selftest unordered_remove.
Running selftest xml_escape_text.
Running selftest xml_escape_text_append.
Ran 3 unit tests, 0 failed
(gdb) maintenance selftest xml unord foobar
Running selftest unordered_remove.
Running selftest xml_escape_text.
Running selftest xml_escape_text_append.
Ran 3 unit tests, 0 failed
Since the selftest machinery is also shared with gdbserver, I also
adapted gdbserver. It accepts a `--selftest` switch, which accepts an
optional filter argument. I made it so you can now pass `--selftest`
multiple time to add filters.
It's not so useful right now though: there's only a single selftest
right now in GDB and it's for an architecture I can't compile. So I
tested by adding dummy tests, here's an example of the result:
$ ./gdbserver --selftest=foo
Running selftest foo.
foo
Running selftest foobar.
foobar
Ran 2 unit tests, 0 failed
$ ./gdbserver --selftest=foo --selftest=bar
Running selftest bar.
bar
Running selftest foo.
foo
Running selftest foobar.
foobar
Ran 3 unit tests, 0 failed
gdbsupport/ChangeLog:
* selftest.h (run_tests): Change parameter to array_view.
* selftest.c (run_tests): Change parameter to array_view and use
it.
gdb/ChangeLog:
* maint.c (maintenance_selftest): Split args and pass array_view
to run_tests.
gdbserver/ChangeLog:
* server.cc (captured_main): Accept multiple `--selftest=`
options. Pass all `--selftest=` arguments to run_tests.
Change-Id: I422bd49f08ea8095ae174c5d66a2dd502a59613a
2020-08-13 19:55:48 +08:00
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2020-08-13 Simon Marchi <simon.marchi@polymtl.ca>
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* selftest.h (run_tests): Change parameter to array_view.
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* selftest.c (run_tests): Change parameter to array_view and use
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it.
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Unify Solaris procfs and largefile handling
GDB currently doesn't build on 32-bit Solaris:
* On Solaris 11.4/x86:
In file included from /usr/include/sys/procfs.h:26,
from /vol/src/gnu/gdb/hg/master/dist/gdb/i386-sol2-nat.c:24:
/usr/include/sys/old_procfs.h:31:2: error: #error "Cannot use procfs in the large file compilation environment"
#error "Cannot use procfs in the large file compilation environment"
^~~~~
* On Solaris 11.3/x86 there are several more instances of this.
The interaction between procfs and large-file support historically has
been a royal mess on Solaris:
* There are two versions of the procfs interface:
** The old ioctl-based /proc, deprecated and not used any longer in
either gdb or binutils.
** The `new' (introduced in Solaris 2.6, 1997) structured /proc.
* There are two headers one can possibly include:
** <procfs.h> which only provides the structured /proc, definining
_STRUCTURED_PROC=1 and then including ...
** <sys/procfs.h> which defaults to _STRUCTURED_PROC=0, the ioctl-based
/proc, but provides structured /proc if _STRUCTURED_PROC == 1.
* procfs and the large-file environment didn't go well together:
** Until Solaris 11.3, <sys/procfs.h> would always #error in 32-bit
compilations when the large-file environment was active
(_FILE_OFFSET_BITS == 64).
** In both Solaris 11.4 and Illumos, this restriction was lifted for
structured /proc.
So one has to be careful always to define _STRUCTURED_PROC=1 when
testing for or using <sys/procfs.h> on Solaris. As the errors above
show, this isn't always the case in binutils-gdb right now.
Also one may need to disable large-file support for 32-bit compilations
on Solaris. config/largefile.m4 meant to do this by wrapping the
AC_SYS_LARGEFILE autoconf macro with appropriate checks, yielding
ACX_LARGEFILE. Unfortunately the macro doesn't always succeed because
it neglects the _STRUCTURED_PROC part.
To make things even worse, since GCC 9 g++ predefines
_FILE_OFFSET_BITS=64 on Solaris. So even if largefile.m4 deciced not to
enable large-file support, this has no effect, breaking the gdb build.
This patch addresses all this as follows:
* All tests for the <sys/procfs.h> header are made with
_STRUCTURED_PROC=1, the definition going into the various config.h
files instead of having to make them (and sometimes failing) in the
affected sources.
* To cope with the g++ predefine of _FILE_OFFSET_BITS=64,
-U_FILE_OFFSET_BITS is added to various *_CPPFLAGS variables. It had
been far easier to have just
#undef _FILE_OFFSET_BITS
in config.h, but unfortunately such a construct in config.in is
commented by config.status irrespective of indentation and whitespace
if large-file support is disabled. I found no way around this and
putting the #undef in several global headers for bfd, binutils, ld,
and gdb seemed way more invasive.
* Last, the applicability check in largefile.m4 was modified only to
disable largefile support if really needed. To do so, it checks if
<sys/procfs.h> compiles with _FILE_OFFSET_BITS=64 defined. If it
doesn't, the disabling only happens if gdb exists in-tree and isn't
disabled, otherwise (building binutils from a tarball), there's no
conflict.
What initially confused me was the check for $plugins here, which
originally caused the disabling not to take place. Since AC_PLUGINGS
does enable plugin support if <dlfcn.h> exists (which it does on
Solaris), the disabling never happened.
I could find no explanation why the linker plugin needs large-file
support but thought it would be enough if gld and GCC's lto-plugin
agreed on the _FILE_OFFSET_BITS value. Unfortunately, that's not
enough: lto-plugin uses the simple-object interface from libiberty,
which includes off_t arguments. So to fully disable large-file
support would mean also disabling it in libiberty and its users: gcc
and libstdc++-v3. This seems highly undesirable, so I decided to
disable the linker plugin instead if large-file support won't work.
The patch allows binutils+gdb to build on i386-pc-solaris2.11 (both
Solaris 11.3 and 11.4, using GCC 9.3.0 which is the worst case due to
predefined _FILE_OFFSET_BITS=64). Also regtested on
amd64-pc-solaris2.11 (again on Solaris 11.3 and 11.4),
x86_64-pc-linux-gnu and i686-pc-linux-gnu.
config:
* largefile.m4 (ACX_LARGEFILE) <sparc-*-solaris*|i?86-*-solaris*>:
Check for <sys/procfs.h> incompatilibity with large-file support
on Solaris.
Only disable large-file support and perhaps plugins if needed.
Set, substitute LARGEFILE_CPPFLAGS if so.
bfd:
* bfd.m4 (BFD_SYS_PROCFS_H): New macro.
(BFD_HAVE_SYS_PROCFS_TYPE): Require BFD_SYS_PROCFS_H.
Don't define _STRUCTURED_PROC.
(BFD_HAVE_SYS_PROCFS_TYPE_MEMBER): Likewise.
* elf.c [HAVE_SYS_PROCFS_H] (_STRUCTURED_PROC): Don't define.
* configure.ac: Use BFD_SYS_PROCFS_H to check for <sys/procfs.h>.
* configure, config.in: Regenerate.
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* Makefile.in, doc/Makefile.in: Regenerate.
binutils:
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* Makefile.in, doc/Makefile.in: Regenerate.
* configure: Regenerate.
gas:
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* Makefile.in, doc/Makefile.in: Regenerate.
* configure: Regenerate.
gdb:
* proc-api.c (_STRUCTURED_PROC): Don't define.
* proc-events.c: Likewise.
* proc-flags.c: Likewise.
* proc-why.c: Likewise.
* procfs.c: Likewise.
* Makefile.in (INTERNAL_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* configure, config.in: Regenerate.
gdbserver:
* configure, config.in: Regenerate.
gdbsupport:
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* common.m4 (GDB_AC_COMMON): Use BFD_SYS_PROCFS_H to check for
<sys/procfs.h>.
* Makefile.in: Regenerate.
* configure, config.in: Regenerate.
gnulib:
* configure.ac: Run ACX_LARGEFILE before gl_EARLY.
* configure: Regenerate.
gprof:
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* Makefile.in: Regenerate.
* configure: Regenerate.
ld:
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
* Makefile.in: Regenerate.
* configure: Regenerate.
2020-07-30 21:41:50 +08:00
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|
|
2020-07-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
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* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
|
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|
* common.m4 (GDB_AC_COMMON): Use BFD_SYS_PROCFS_H to check for
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<sys/procfs.h>.
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* Makefile.in: Regenerate.
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* configure, config.in: Regenerate.
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2020-07-28 21:07:44 +08:00
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2020-07-28 Tom de Vries <tdevries@suse.de>
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PR build/26281
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|
* gdb_optional.h (class optional): Add volatile member to union
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contaning m_dummy and m_item.
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gdb/riscv: delete target descriptions when gdb exits
It was pointed out on IRC that the RISC-V target allocates target
descriptions and stores them in a global map, and doesn't delete these
target descriptions when GDB shuts down.
This isn't a particular problem, the total number of target
descriptions we can create is very limited so creating these on demand
and holding them for the entire run on GDB seems reasonable.
However, not deleting these objects on GDB exit means extra warnings
are printed from tools like valgrind, and the address sanitiser,
making it harder to spot real issues. As it's reasonably easy to have
GDB correctly delete these objects on exit, lets just do that.
I started by noticing that we already have a target_desc_up type, a
wrapper around unique_ptr that calls a function that will correctly
delete target descriptions, so I want to use that, but....
...that type is declared in gdb/target-descriptions.h. If I try to
include that file in gdb/arch/riscv.c I run into a problem, that file
is compiled into both GDB and GDBServer.
OK, I could guard the include with #ifdef, but surely we can do
better.
So then I decided to move the target_desc_up type into
gdbsupport/tdesc.h, this is the interface file for generic code shared
between GDB and GDBserver (relating to target descriptions). The
actual implementation for the delete function still lives in
gdb/target-description.c, but now gdb/arch/riscv.c can see the
declaration. Problem solved....
... but, though RISC-V doesn't use it I've now exposed the
target_desc_up type to gdbserver, so in future someone _might_ start
using it, which is fine, except right now there's no definition of the
delete function - remember the delete I used is only defined in GDB
code.
No problem, I add an implementation of the delete operator into
gdbserver/tdesc.cc, and all is good..... except....
I start getting this error from GCC:
tdesc.cc:109:10: error: deleting object of polymorphic class type ‘target_desc’ which has non-virtual destructor might cause undefined behavior [-Werror=delete-non-virtual-dtor]
Which is caused because gdbserver's target_desc type inherits from
tdesc_element which has a virtual method, and so GCC worries that
target_desc might be used as a base class.
The solution is to declare gdbserver's target_desc class as final.
This is fine so long as we never intent to inherit from
target_desc (in gdbserver). But if we did then we'd want to make
target_desc's destructor virtual anyway, so the error above would be
resolved, and there wouldn't be an issue.
gdb/ChangeLog:
* arch/riscv.c (riscv_tdesc_cache): Change map type.
(riscv_lookup_target_description): Return pointer out of
unique_ptr.
* target-descriptions.c (allocate_target_description): Add
comment.
(target_desc_deleter::operator()): Likewise.
* target-descriptions.h (struct target_desc_deleter): Moved to
gdbsupport/tdesc.h.
(target_desc_up): Likewise.
gdbserver/ChangeLog:
* tdesc.cc (allocate_target_description): Add header comment.
(target_desc_deleter::operator()): New function.
* tdesc.h (struct target_desc): Declare as final.
gdbsupport/ChangeLog:
* tdesc.h (struct target_desc_deleter): Moved here
from gdb/target-descriptions.h, extend comment.
(target_desc_up): Likewise.
2020-07-17 00:48:12 +08:00
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2020-07-17 Andrew Burgess <andrew.burgess@embecosm.com>
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* tdesc.h (struct target_desc_deleter): Moved here
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from gdb/target-descriptions.h, extend comment.
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(target_desc_up): Likewise.
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2020-06-30 21:53:03 +08:00
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2020-06-30 Tom Tromey <tromey@adacore.com>
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PR build/26183:
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* gdb_string_view.h (basic_string_view::to_string): Remove.
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(gdb::to_string): New function.
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2020-06-28 02:38:43 +08:00
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2020-06-27 Simon Marchi <simon.marchi@efficios.com>
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* tdesc.h (class print_xml_feature) <add_line>: Add
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ATTRIBUTE_PRINTF.
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gdb: New maintenance command to print XML target description
This commit adds a new maintenance command that dumps the current
target description as an XML document. This is a maintenance command
as I currently only see this being useful for GDB developers, or for
people debugging a new remote target.
By default the command will print whatever the current target
description is, whether this was delivered by the remote, loaded by
the user from a file, or if it is a built in target within GDB.
The command can also take an optional filename argument. In this case
GDB loads a target description from the file, and then reprints it.
This could be useful for testing GDB's parsing of target descriptions,
or to check that GDB can successfully parse a particular XML
description.
It is worth noting that the XML description printed will not be an
exact copy of the document fed into GDB. For example this minimal
input file:
<target>
<feature name="abc">
<reg name="r1" bitsize="32"/>
</feature>
</target>
Will produce this output:
(gdb) maint print xml-tdesc path/to/file.xml
<?xml version="1.0"?>
<!DOCTYPE target SYSTEM "gdb-target.dtd">
<target>
<feature name="abc">
<reg name="r1" bitsize="32" type="int" regnum="0"/>
</feature>
</target>
Notice that GDB filled in both the 'type' and 'regnum' fields of the
<reg>. I think this is actually a positive as it means we get to
really understand how GDB processed the document, if GDB made some
assumptions that differ to those the user expected then hopefully this
will bring those issues to the users attention.
To implement this I have tweaked the output produced by the
print_xml_feature which is defined within the gdbsupport/ directory.
The changes I have made to this class are:
1. The <architecture>...</architecture> tags are now not produced if
the architecture name is NULL.
2. The <osabi>...</osabi> tags get a newline at the end.
3. And, the whole XML document is indented using white space in a
nested fashion (as in the example output above).
I think that these changes should be fine, the print_xml_feature class
is used:
1. In gdbserver to generate an XML document to send as the target
description to GDB.
2. In GDB as part of a self-check function, a target_desc is
converted to XML then parsed back into a target_desc. We then check
the before and after target_desc objects are the same.
3. In the new 'maint print xml-tdesc' command.
In all of these use cases adding the extra white space should be fine.
gdbsupport/ChangeLog:
* tdesc.cc (print_xml_feature::visit_pre): Use add_line to add
output content, and call indent as needed in all overloaded
variants.
(print_xml_feature::visit_post): Likewise.
(print_xml_feature::visit): Likewise.
(print_xml_feature::add_line): Two new overloaded functions.
* tdesc.h (print_xml_feature::indent): New member function.
(print_xml_feature::add_line): Two new overloaded member
functions.
(print_xml_feature::m_depth): New member variable.
gdb/ChangeLog:
* target-descriptions.c (tdesc_architecture_name): Protect against
NULL pointer dereference.
(maint_print_xml_tdesc_cmd): New function.
(_initialize_target_descriptions): Register new 'maint print
xml-tdesc' command and give it the filename completer.
* NEWS: Mention new 'maint print xml-tdesc' command.
gdb/testsuite/ChangeLog:
* gdb.xml/tdesc-reload.c: New file.
* gdb.xml/tdesc-reload.exp: New file.
* gdb.xml/maint-xml-dump-01.xml: New file.
* gdb.xml/maint-xml-dump-02.xml: New file.
* gdb.xml/maint-xml-dump.exp: New file.
gdb/doc/ChangeLog:
* gdb.texinfo (Maintenance Commands): Document new 'maint print
xml-desc' command.
2020-06-10 06:08:54 +08:00
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2020-06-23 Andrew Burgess <andrew.burgess@embecosm.com>
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* tdesc.cc (print_xml_feature::visit_pre): Use add_line to add
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|
output content, and call indent as needed in all overloaded
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variants.
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(print_xml_feature::visit_post): Likewise.
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(print_xml_feature::visit): Likewise.
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(print_xml_feature::add_line): Two new overloaded functions.
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* tdesc.h (print_xml_feature::indent): New member function.
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(print_xml_feature::add_line): Two new overloaded member
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functions.
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(print_xml_feature::m_depth): New member variable.
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gdb: Print compatible information within print_xml_feature
The gdbsupport directory contains a helper class print_xml_feature
that is shared between gdb and gdbserver. This class is used for
printing an XML representation of a target_desc object.
Currently this class doesn't have the ability to print the
<compatible> entities that can appear within a target description, I
guess no targets have needed that functionality yet.
The print_xml_feature classes API is based around operating on the
target_desc class, however, the sharing between gdb and gdbserver is
purely textural, we rely on their being a class called target_desc in
both gdb and gdbserver, but there is no shared implementation. We
then have a set of functions declared that operate on an object of
type target_desc, and again these functions have completely separate
implementations.
Currently then the gdb version of target_desc contains a vector of
bfd_arch_info pointers which represents the compatible entries from a
target description. The gdbserver version of target_desc has no such
information. Further, the gdbserver code doesn't seem to include the
bfd headers, and so doesn't know about the bfd types.
I was reluctant to include the bfd headers into gdbserver just so I
can reference the compatible information, which isn't (currently) even
needed in gdbserver.
So, the approach I take in this patch is to wrap the compatible
information into a new helper class. This class is declared in the
gdbsupport library, but implemented separately in both gdb and
gdbserver.
In gdbserver the class is empty. The compatible information within
the gdbserver is an empty list, of empty classes.
In gdb the class contains a pointer to the bfd_arch_info object.
With this in place we can now add support to print_xml_feature for
printing the compatible information if it is present. In the
gdbserver code this will never happen, as the gdbserver never has any
compatible information. But in gdb, this code will trigger when
appropriate.
gdb/ChangeLog:
* target-descriptions.c (class tdesc_compatible_info): New class.
(struct target_desc): Change type of compatible vector.
(tdesc_compatible_p): Update for change in type of
target_desc::compatible.
(tdesc_compatible_info_list): New function.
(tdesc_compatible_info_arch_name): New function.
(tdesc_add_compatible): Update for change in type of
target_desc::compatible.
(print_c_tdesc::visit_pre): Likewise.
gdbserver/ChangeLog:
* tdesc.cc (struct tdesc_compatible_info): New struct.
(tdesc_compatible_info_list): New function.
(tdesc_compatible_info_arch_name): New function.
gdbsupport/ChangeLog:
* tdesc.cc (print_xml_feature::visit_pre): Print compatible
information.
* tdesc.h (struct tdesc_compatible_info): Declare new struct.
(tdesc_compatible_info_up): New typedef.
(tdesc_compatible_info_list): Declare new function.
(tdesc_compatible_info_arch_name): Declare new function.
2020-06-12 05:36:29 +08:00
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|
|
2020-06-23 Andrew Burgess <andrew.burgess@embecosm.com>
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|
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|
|
* tdesc.cc (print_xml_feature::visit_pre): Print compatible
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|
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|
information.
|
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|
* tdesc.h (struct tdesc_compatible_info): Declare new struct.
|
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(tdesc_compatible_info_up): New typedef.
|
|
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|
(tdesc_compatible_info_list): Declare new function.
|
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|
|
(tdesc_compatible_info_arch_name): Declare new function.
|
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|
2020-05-25 23:40:07 +08:00
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|
|
2020-05-25 Michael Weghorn <m.weghorn@posteo.de>
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|
|
* common-utils.cc, common-utils.h (stringify_argv): Drop
|
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|
|
now unused function stringify_argv
|
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|
2020-05-25 23:38:32 +08:00
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|
2020-05-25 Michael Weghorn <m.weghorn@posteo.de>
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|
* common-inferior.cc, common-inferior.h (construct_inferior_arguments):
|
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|
Adapt to take a gdb::array_view<char * const> parameter.
|
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|
Adapt call site.
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2020-05-25 23:38:11 +08:00
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|
|
2020-05-25 Michael Weghorn <m.weghorn@posteo.de>
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|
* common-inferior.cc, common-inferior.h (construct_inferior_arguments):
|
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|
Adapt to handle zero args and return a std::string.
|
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|
Adapt call site.
|
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|
2020-05-25 23:37:44 +08:00
|
|
|
2020-05-25 Michael Weghorn <m.weghorn@posteo.de>
|
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|
|
* common-inferior.h, common-inferior.cc: (construct_inferior_arguments):
|
|
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|
|
Move function here from gdb/infcmd.c, gdb/inferior.h
|
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|
Disable record btrace bts support for AMD processors
Some Intel processors implement a Branch Trace Store (BTS) which GDB
uses for reverse execution support via the "record btrace bts"
command.
I have been unable to find a description of a similar feature in a
recent (April 2020) AMD64 architecture reference:
https://www.amd.com/system/files/TechDocs/40332.pdf
While it is the case that AMD processors have an LBR (last branch
record) bit in the DebugCtl MSR, it seems that it affects only four
MSRs when enabled. The names of these MSRs are LastBranchToIP,
LastBranchFromIP, LastIntToIP, and LastIntFromIP. I can find no
mention of anything more extensive. While looking at an Intel
architecture document, I noticed that Intel's P6 family from the
mid-90s had registers of the same name.
Therefore...
This commit disables "record btrace bts" support in GDB for AMD
processors.
Using the test case from gdb.base/break.exp, the sessions
below show the expected behavior (run on a machine with an
Intel processor) versus that on a machine with an AMD processor.
The AMD processor in question is reported as follows by "lscpu":
AMD Ryzen Threadripper 2950X 16-Core Processor . Finally, I'll
note that the AMD machine is actually a VM, but I see similar
behavior on both the virtualization host and the VM.
Intel machine - Desired behavior:
[kevinb@mohave gdb]$ ./gdb -q testsuite/outputs/gdb.base/break/break
Reading symbols from testsuite/outputs/gdb.base/break/break...
(gdb) start
Temporary breakpoint 1 at 0x401179: file /home/kevinb/sourceware-git/native-build/bld/../../binutils-gdb/gdb/testsuite/gdb.base/break.c, line 43.
Starting program: /home/kevinb/sourceware-git/native-build/bld/gdb/testsuite/outputs/gdb.base/break/break
Temporary breakpoint 1, main (argc=1, argv=0x7fffffffd748, envp=0x7fffffffd758)
at /home/kevinb/sourceware-git/native-build/bld/../../binutils-gdb/gdb/testsuite/gdb.base/break.c:43
43 if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
(gdb) record btrace
(gdb) b factorial
Breakpoint 2 at 0x40121b: file /home/kevinb/sourceware-git/native-build/bld/../../binutils-gdb/gdb/testsuite/gdb.base/break.c, line 63.
(gdb) c
Continuing.
Breakpoint 2, factorial (value=6)
at /home/kevinb/sourceware-git/native-build/bld/../../binutils-gdb/gdb/testsuite/gdb.base/break.c:63
63 if (value > 1) { /* set breakpoint 7 here */
(gdb) info record
Active record target: record-btrace
Recording format: Branch Trace Store.
Buffer size: 64kB.
Recorded 768 instructions in 22 functions (0 gaps) for thread 1 (process 19215).
(gdb) record function-call-history
13 do_lookup_x
14 _dl_lookup_symbol_x
15 _dl_fixup
16 _dl_runtime_resolve_xsavec
17 atoi
18 strtoq
19 ____strtoll_l_internal
20 atoi
21 main
22 factorial
(gdb) record instruction-history
759 0x00007ffff7ce0917 <____strtoll_l_internal+647>: pop %r15
760 0x00007ffff7ce0919 <____strtoll_l_internal+649>: retq
761 0x00007ffff7cdd064 <atoi+20>: add $0x8,%rsp
762 0x00007ffff7cdd068 <atoi+24>: retq
763 0x00000000004011b1 <main+75>: mov %eax,%edi
764 0x00000000004011b3 <main+77>: callq 0x401210 <factorial>
765 0x0000000000401210 <factorial+0>: push %rbp
766 0x0000000000401211 <factorial+1>: mov %rsp,%rbp
767 0x0000000000401214 <factorial+4>: sub $0x10,%rsp
768 0x0000000000401218 <factorial+8>: mov %edi,-0x4(%rbp)
AMD machine - Wrong behavior:
[kev@f32-1 gdb]$ ./gdb -q testsuite/outputs/gdb.base/break/break
Reading symbols from testsuite/outputs/gdb.base/break/break...
(gdb) start
Temporary breakpoint 1 at 0x401179: file /ironwood1/sourceware-git/f32-master/bld/../../worktree-master/gdb/testsuite/gdb.base/break.c, line 43.
Starting program: /mesquite2/sourceware-git/f32-master/bld/gdb/testsuite/outputs/gdb.base/break/break
Temporary breakpoint 1, main (argc=1, argv=0x7fffffffd5b8, envp=0x7fffffffd5c8)
at /ironwood1/sourceware-git/f32-master/bld/../../worktree-master/gdb/testsuite/gdb.base/break.c:43
43 if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
(gdb) record btrace
(gdb) b factorial
Breakpoint 2 at 0x40121b: file /ironwood1/sourceware-git/f32-master/bld/../../worktree-master/gdb/testsuite/gdb.base/break.c, line 63.
(gdb) c
Continuing.
Breakpoint 2, factorial (value=6)
at /ironwood1/sourceware-git/f32-master/bld/../../worktree-master/gdb/testsuite/gdb.base/break.c:63
63 if (value > 1) { /* set breakpoint 7 here */
(gdb) info record
Active record target: record-btrace
Recording format: Branch Trace Store.
Buffer size: 64kB.
warning: Recorded trace may be incomplete at instruction 7737 (pc = 0x405000).
warning: Recorded trace may be incomplete at instruction 7739 (pc = 0x0).
Recorded 7740 instructions in 46 functions (2 gaps) for thread 1 (process 1402911).
(gdb) record function-call-history
37 ??
38 values
39 some_enum_global
40 ??
41 some_union_global
42 some_variable
43 ??
44 [decode error (2): unknown instruction]
45 ??
46 [decode error (2): unknown instruction]
(gdb) record instruction-history
7730 0x0000000000404ff3: add %al,(%rax)
7731 0x0000000000404ff5: add %al,(%rax)
7732 0x0000000000404ff7: add %al,(%rax)
7733 0x0000000000404ff9: add %al,(%rax)
7734 0x0000000000404ffb: add %al,(%rax)
7735 0x0000000000404ffd: add %al,(%rax)
7736 0x0000000000404fff: .byte 0x0
7737 0x0000000000405000: Cannot access memory at address 0x405000
Lastly, I'll note that I see a lot of gdb.btrace failures without
this commit. Worse still, the results aren't always the same which
causes a lot of noise when comparing test results.
gdbsupport/ChangeLog:
* btrace-common.h (btrace_cpu_vendor): Add CV_AMD.
gdb/ChangeLog:
* nat/linux-btrace.c (btrace_this_cpu): Add check for AMD
processors.
(cpu_supports_bts): Add CV_AMD case.
2020-05-15 02:10:14 +08:00
|
|
|
2020-05-14 Kevin Buettner <kevinb@redhat.com>
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|
|
* btrace-common.h (btrace_cpu_vendor): Add CV_AMD.
|
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|
2020-05-14 19:59:53 +08:00
|
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|
2020-05-14 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
|
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|
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|
|
* common-regcache.h (regcache_read_pc_protected): New function
|
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|
|
declaration.
|
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|
2020-04-28 17:30:52 +08:00
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|
2020-04-28 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
|
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|
|
* gdb-sigmask.h: Fix typo (pthead_sigmask -> pthread_sigmask).
|
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2020-04-27 21:19:48 +08:00
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2020-04-27 Simon Marchi <simon.marchi@polymtl.ca>
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* common-defs.h: Include cstdlib.h.
|
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2020-04-21 01:45:06 +08:00
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2020-04-20 Tom Tromey <tromey@adacore.com>
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* scoped_mmap.h (scoped_mmap): Mark move constructor as noexcept.
|
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Use initialization style. Don't call destroy.
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* scoped_fd.h (class scoped_fd): Mark move constructor as
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noexcept.
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* gdb_ref_ptr.h (class ref_ptr): Mark move constructor as
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noexcept.
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2020-04-14 02:42:59 +08:00
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2020-04-13 Tom Tromey <tom@tromey.com>
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* event-loop.c: Move comment. Remove obsolete comment.
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2020-04-14 02:42:59 +08:00
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2020-04-13 Tom Tromey <tom@tromey.com>
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* event-loop.h: Move from ../gdb/.
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* event-loop.cc: Move from ../gdb/.
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2020-04-14 02:42:59 +08:00
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2020-04-13 Tom Tromey <tom@tromey.com>
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* errors.h (flush_streams): Declare.
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2020-04-14 02:42:59 +08:00
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2020-04-13 Tom Tromey <tom@tromey.com>
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* gdb_select.h: Move from ../gdb/.
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2020-04-14 02:42:59 +08:00
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2020-04-13 Tom Tromey <tom@tromey.com>
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* config.in, configure: Rebuild.
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* common.m4 (GDB_AC_COMMON): Check for poll.h, sys/poll.h,
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sys/select.h, and poll.
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2020-03-31 21:29:53 +08:00
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2020-03-31 Tom Tromey <tromey@adacore.com>
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* btrace-common.cc (btrace_data_append): Conditionally call
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memcpy.
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2020-03-27 19:56:33 +08:00
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2020-03-27 Andrew Burgess <andrew.burgess@embecosm.com>
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* create-version.sh: Resolve issues highlighted by shellcheck.
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gdb: remove HAVE_DECL_PTRACE
I stumbled on this snippet in nat/gdb_ptrace.h:
/* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64
or whatever it's called these days, don't provide a prototype for
ptrace. Provide one to silence compiler warnings. */
#ifndef HAVE_DECL_PTRACE
extern PTRACE_TYPE_RET ptrace();
#endif
I believe this is unnecessary today and should be removed. First, the
comment only mentions OSes we don't support (and to be honest, I had
never even heard of).
But most importantly, in C++, a declaration with empty parenthesis
declares a function that accepts no arguments, unlike in C. So if this
declaration was really used, GDB wouldn't build, since all ptrace call
sites pass some arguments. Since we haven't heard anything about this
causing some build failures since we have transitioned to C++, I
conclude that it's not used.
This patch removes it as well as the corresponding configure check.
gdb/ChangeLog:
* ptrace.m4: Don't check for ptrace declaration.
* config.in: Re-generate.
* configure: Re-generate.
* nat/gdb_ptrace.h: Don't declare ptrace if HAVE_DECL_PTRACE is
not defined.
gdbserver/ChangeLog:
* config.in: Re-generate.
* configure: Re-generate.
gdbsupport/ChangeLog:
* config.in: Re-generate.
* configure: Re-generate.
2020-03-20 23:57:49 +08:00
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2020-03-20 Simon Marchi <simon.marchi@efficios.com>
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* config.in: Re-generate.
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* configure: Re-generate.
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2020-03-17 22:01:55 +08:00
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2020-03-17 Kamil Rytarowski <n54@gmx.com>
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* common-defs.h: Include alloca.h if HAVE_ALLOCA_H is defined.
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2020-03-13 03:32:15 +08:00
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2020-03-12 Tom Tromey <tom@tromey.com>
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* common-types.h: Remove GDBSERVER code.
|
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(gdb_byte, CORE_ADDR, LONGEST, ULONGEST): Redefine.
|
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* common-defs.h: Remove GDBSERVER code.
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2020-03-13 02:19:38 +08:00
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2020-03-12 Simon Marchi <simon.marchi@efficios.com>
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* selftest.m4: Moved from gdb/.
|
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* acinclude.m4: Update path to selftest.m4.
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2020-03-13 02:18:00 +08:00
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2020-03-12 Simon Marchi <simon.marchi@efficios.com>
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* configure.ac: Don't source bfd/development.sh.
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* common.m4: Source bfd/development.sh.
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* configure: Re-generate.
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2020-03-13 02:12:36 +08:00
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2020-03-12 Simon Marchi <simon.marchi@efficios.com>
|
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* configure: Re-generate.
|
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2020-03-12 03:15:12 +08:00
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2020-03-11 Simon Marchi <simon.marchi@efficios.com>
|
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* configure: Re-generate.
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* warning.m4: Enable -Wmissing-prototypes.
|
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2020-03-09 01:05:43 +08:00
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2020-03-08 Tom Tromey <tom@tromey.com>
|
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* gdb_binary_search.h: Fix two typos.
|
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gdbserver/gdbsupport: Add .dir-locals.el file
Copy the .dir-locls.el file from gdb/ to gdbserver/ and gdbsupport/ so
that we get the GNU/GDB style when editing these files in Emacs.
I initially wanted to remove the (c-mode . ((mode . c++))) that
switches c-mode files into c++-mode as we store C++ code in *.cc files
in the gdbserver/ directory, unlike gdb/ where we use *.c, however, I
was forgetting about the header files - we still use *.h for our C++
header files, so for now I left the settings in place to open all C
files in c++-mode.
We now have three copies of this file, which are all identical. It
would be nice if we could remove this duplication, however, for now we
haven't found a good way to do this.
Some options considered were:
1. Use symlinks to only have one copy of the file. This was
rejected as not all targets support symlinks in the way.
2. Have two of the .dir-locals.el files contain some mechanism by
which the third copy of the file is sourced. Though this would, in
theory, be possible, it would involve some advanced Emacs scripting,
would be fragile, and a maintenance burdon.
3. Move the .dir-locals up into top level src/ directory, then use
Emacs dir-locals directory pattern matching to only apply the rules
for the three directories we care about. The problem is that each
directory has to be listed separately, so we still end up having to
duplicate all the rules.
In the end, it was decided that having three copies of the file,
though not ideal, is probably easiest for now. This was all discussed
in this mailing list thread:
https://sourceware.org/ml/gdb-patches/2020-03/msg00024.html
The copyright date in the new files is left as for gdb/.dir-locals.el,
as the new files are a copy of the old, this is inline with this rule:
https://sourceware.org/gdb/wiki/ContributionChecklist#Copyright_Header
gdb/ChangeLog:
* .dir-locals.el: Add a comment referencing the other copies of
this file.
gdbserver/ChangeLog:
* .dir-locals.el: New file.
gdbsupport/ChangeLog:
* .dir-locals.el: New file.
2020-02-29 02:08:08 +08:00
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2020-03-06 Andrew Burgess <andrew.burgess@embecosm.com>
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|
* .dir-locals.el: New file.
|
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gdbsupport/configure.ac: source development.sh
[Commit message by Simon Marchi]
The GDB build in non-development mode (turn development to false in
bfd/development.sh if you want to try) is currently broken:
CXXLD gdb
/home/smarchi/src/binutils-gdb/gdb/disasm-selftests.c:218: error: undefined reference to 'selftests::register_test_foreach_arch(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void (*)(gdbarch*))'
/home/smarchi/src/binutils-gdb/gdb/disasm-selftests.c:220: error: undefined reference to 'selftests::register_test_foreach_arch(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void (*)(gdbarch*))'
/home/smarchi/src/binutils-gdb/gdb/dwarf2/frame.c:2310: error: undefined reference to 'selftests::register_test_foreach_arch(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void (*)(gdbarch*))'
/home/smarchi/src/binutils-gdb/gdb/gdbarch-selftests.c:168: error: undefined reference to 'selftests::register_test_foreach_arch(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, void (*)(gdbarch*))'
/home/smarchi/src/binutils-gdb/gdbsupport/selftest.cc:96: error: undefined reference to 'selftests::reset()'
This is because the gdbsupport configure script doesn't source
bfd/development.sh to set the development variable. When $development
is unset, GDB_AC_SELFTEST defaults to enabling selftests. I don't think
the macro was written with this intention in mind, it just happens to be
that way.
So gdbsupport thinks selftests are enabled, while gdb thinks they are
disabled. gdbsupport compiles in code that calls selftests:: functions,
which are normally provided by gdb, but gdb doesn't provide them, hence
the undefined references.
Fix this by sourcing bfd/development.sh in gdbsupport/configure.ac, so
that the development variable is set.
gdbsupport/ChangeLog:
* configure.ac: Added call development.sh.
* configure: Regenerate.
2020-02-26 14:32:03 +08:00
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2020-03-05 Vyacheslav Petrishchev <vyachemail@gmail.com>
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|
* configure.ac: Added call development.sh.
|
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|
* configure: Regenerate.
|
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|
gdb, gdbserver, gdbsupport: add .gitattributes files
Create .gitattributes files in gdb/, gdbserver/, and gdbsupport/.
The files specify cpp-style diffs for .h and .c files. This is
particularly helpful if a class in a header file is modified.
For instance, if the `stop_requested` field of `thread_info` in
gdb/gdbthread.h is modified, we get the following diff with
'git diff' (using git version 2.17.1):
@@ -379,7 +379,7 @@ public:
struct target_waitstatus pending_follow;
/* True if this thread has been explicitly requested to stop. */
- int stop_requested = 0;
+ bool stop_requested = 0;
/* The initiating frame of a nexting operation, used for deciding
which exceptions to intercept. If it is null_frame_id no
Note that the context of the change shows up as 'public:'; not so
useful. With the .gitattributes file, we get:
@@ -379,7 +379,7 @@ class thread_info : public refcounted_object
struct target_waitstatus pending_follow;
/* True if this thread has been explicitly requested to stop. */
- int stop_requested = 0;
+ bool stop_requested = 0;
/* The initiating frame of a nexting operation, used for deciding
which exceptions to intercept. If it is null_frame_id no
The context is successfully shown as 'class thread_info'.
This patch creates a .gitattributes file per each of gdb, gdbserver,
and gdbsupport folders. An alternative would be to define the
attributes in the root folder -- this would impact all the top-level
folders, though. I opted for the more conservative approach.
gdb/ChangeLog:
2020-03-05 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* .gitattributes: New file.
gdbserver/ChangeLog:
2020-03-05 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* .gitattributes: New file.
gdbsupport/ChangeLog:
2020-03-05 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* .gitattributes: New file.
2020-03-05 22:59:22 +08:00
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2020-03-05 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
|
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* .gitattributes: New file.
|
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|
2020-03-04 06:11:12 +08:00
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2020-03-03 Simon Marchi <simon.marchi@efficios.com>
|
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* Makefile.in: Re-generate.
|
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|
2020-02-26 04:50:16 +08:00
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|
2020-02-28 Sergio Durigan Junior <sergiodj@redhat.com>
|
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* gdb-dlfcn.h (gdb_dlopen): Update comment.
|
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|
Merge changes from GCC for the config/ directory
GCC's config/ChangeLog since the last time this merge was done
(in the binutils-gdb commit 0b4d000cc4e8e77c823) is included at the
end of this commit message.
It is worth noting that the binutils-gdb commit 301a9420d947da1458
added the file config/debuginfod.m4 which is not present in GCC's
config/ directory. This file is preserved, unmodified, after this
commit.
In order to regenerate all of the configure files, I configured with
--enable-maintainer-mode, and built the 'all' target. I then did the
same thing on a source tree without this patch, and only committed
those files that changed when this patch was added.
GCC's config/ChangeLog entries:
2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
PR libstdc++/79193
PR libstdc++/88999
* no-executables.m4: Use a non-empty program to test for linker
support.
2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Update shell syntax.
2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Add new
--with-libXXX-type=... option. Use this to guide the selection of
either a shared library or a static library.
2020-01-24 Maciej W. Rozycki <macro@wdc.com>
* toolexeclibdir.m4: New file.
2019-09-10 Christophe Lyon <christophe.lyon@st.com>
* futex.m4: Handle *-uclinux*.
* tls.m4 (GCC_CHECK_TLS): Likewise.
2019-09-06 Florian Weimer <fweimer@redhat.com>
* futex.m4 (GCC_LINUX_FUTEX): Include <unistd.h> for the syscall
function.
2019-07-08 Richard Sandiford <richard.sandiford@arm.com>
* bootstrap-Og.mk: New file.
2019-06-25 Kwok Cheung Yeung <kcy@codesourcery.com>
Andrew Stubbs <ams@codesourcery.com>
* gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn.
2019-05-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* ax_count_cpus.m4: New file.
2019-05-02 Richard Biener <rguenther@suse.de>
PR bootstrap/85574
* bootstrap-lto.mk (extra-compare): Set to gcc/lto1$(exeext).
2019-04-16 Martin Liska <mliska@suse.cz>
* bootstrap-lto-lean.mk: Filter out -flto in STAGEtrain_CFLAGS.
2019-04-09 Martin Liska <mliska@suse.cz>
* bootstrap-lto-lean.mk: New file.
2019-03-02 Johannes Pfau <johannespfau@gmail.com>
* mh-mingw: Also set __USE_MINGW_ACCESS flag for C++ code.
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* math.m4, tls.m4: Use AC_LANG_SOURCE.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.
config/ChangeLog:
* ax_count_cpus.m4: New file, backported from GCC.
* bootstrap-Og.mk: New file, backported from GCC.
* bootstrap-lto-lean.mk: New file, backported from GCC.
* bootstrap-lto.mk: Changes backported from GCC.
* futex.m4: Changes backported from GCC.
* gthr.m4: Changes backported from GCC.
* lib-link.m4: Changes backported from GCC.
* mh-mingw: Changes backported from GCC.
* no-executables.m4: Changes backported from GCC.
* tls.m4: Changes backported from GCC.
* toolexeclibdir.m4: New file, backported from GCC.
binutils/ChangeLog:
* configure: Regenerate.
gdb/ChangeLog:
* configure: Regenerate.
gdbserver/ChangeLog:
* configure: Regenerate.
gdbsupport/ChangeLog:
* configure: Regenerate.
intl/ChangeLog:
* configure: Regenerate.
libiberty/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog.bin-gdb:
* configure: Regenerate.
2020-02-05 19:50:07 +08:00
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2020-02-19 Andrew Burgess <andrew.burgess@embecosm.com>
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* configure: Regenerate.
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2020-02-15 05:34:20 +08:00
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2020-02-14 Tom Tromey <tom@tromey.com>
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* common-defs.h: Change path to gnulib/config.h.
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gdbsupport: rename source files to .cc
This patch renames the .c source files in gdbsupport to .cc.
In the gdb directory, there is an argument against renaming the source
files, which is that it makes using some git commands more difficult to
do archeology. Some commands have some kind of "follow" option that
makes git try to follow renames, but it doesn't work in all situations.
Given that we have just moved the gdbsupport directory, that argument
doesn't hold for source files in that directory. I therefore suggest
renaming them to .cc, so that they are automatically recognized as C++
by various tools and editors.
The original motivation behind this is that when building gdbsupport
with clang, I get:
CC agent.o
clang: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Werror,-Wdeprecated]
In the gdb/ directory, we make clang happy by passing "-x c++". We
could do this in gdbsupport too, but I think that renaming the files is
a better long-term solution.
gdbserver still does its own build of gdbsupport, so a few changes in
its Makefile are necessary.
gdbsupport/ChangeLog:
* Makefile.am: Rename source files from .c to .cc.
(CC, CFLAGS): Don't override.
(AM_CFLAGS): Rename to ...
(AM_CXXFLAGS): ... this.
* Makefile.in: Re-generate.
* %.c: Rename to %.cc.
gdbserver/ChangeLog:
* Makefile.in: Rename gdbsupport source files from .c to .cc.
2020-02-14 05:27:02 +08:00
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2020-02-13 Simon Marchi <simon.marchi@efficios.com>
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* Makefile.am: Rename source files from .c to .cc.
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(CC, CFLAGS): Don't override.
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(AM_CFLAGS): Rename to ...
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(AM_CXXFLAGS): ... this.
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* Makefile.in: Re-generate.
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* %.c: Rename to %.cc.
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2020-02-11 23:56:05 +08:00
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2020-02-11 Simon Marchi <simon.marchi@efficios.com>
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* configure: Re-generate.
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2020-02-11 23:51:49 +08:00
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2020-02-11 Simon Marchi <simon.marchi@efficios.com>
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* warning.m4: Add -Wstrict-null-sentinel.
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* configure: Re-generate.
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2020-02-11 23:51:43 +08:00
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2020-02-11 Simon Marchi <simon.marchi@efficios.com>
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* warning.m4: Move here, from gdb/warning.m4.
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* acinclude.m4: Update warning.m4 path.
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* Makefile.in: Re-generate.
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2020-02-11 23:46:23 +08:00
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2020-02-11 Simon Marchi <simon.marchi@efficios.com>
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* acinclude.m4: Include ../gdb/warning.m4.
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* configure.ac: Use AM_GDB_WARNINGS.
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* Makefile.am: Set AM_CFLAGS to WARN_CFLAGS and WERROR_CFLAGS.
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* Makefile.in: Re-generate.
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* configure: Re-generate.
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2020-02-10 22:13:42 +08:00
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2020-02-10 Tom de Vries <tdevries@suse.de>
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* environ.c (gdb_environ::set): Cast concat NULL sentinel to char *.
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2020-01-24 21:58:29 +08:00
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2020-01-24 Christian Biesinger <cbiesinger@google.com>
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* thread-pool.c (set_thread_name): Add an overload for the NetBSD
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version of pthread_setname_np.
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2020-01-16 05:55:29 +08:00
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2020-01-17 Pedro Alves <palves@redhat.com>
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* Makefile.am: Append CXX_DIALECT to CXX.
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* Makefile.in: Regenerate.
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2020-01-17 23:14:56 +08:00
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2020-01-17 Pedro Alves <palves@redhat.com>
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* configure.ac: Generate config.h instead of support-config.h.
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* common-defs.h: Include <gdbsupport/config.h> instead of
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<gdbsupport/support-config.h>.
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* Makefile.in: Regenerate.
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* configure: Regenerate.
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2019-12-20 08:51:40 +08:00
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2020-01-14 Tom Tromey <tom@tromey.com>
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* Makefile.in: Rebuild.
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* Makefile.am (check-defines): New target.
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* check-defines.el: New file.
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Move many configure checks to common.m4
This moves many needed configure checks from gdb and gdbserver into
common.m4. This helps gdbsupport, nat, and target be self-contained.
The result is a bit spaghetti-ish, because gdbsupport uses another m4
file from gdb/. The resulting code is somewhat non-obvious. However,
these problems already exist, so it's not really that much worse than
what is already done.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Move many checks to ../gdbsupport/common.m4.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Remove any checks that were added to common.m4.
* acinclude.m4: Include lib-ld.m4, lib-prefix.m4, and
lib-link.m4.
gdbsupport/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure, Makefile.in, aclocal.m4, common.m4, config.in:
Rebuild.
* common.m4 (GDB_AC_COMMON): Move many checks from
gdb/configure.ac.
* acinclude.m4: Include bfd.m4, ptrace.m4.
Change-Id: I931eaa94065df268b30a2f1354390710df89c7f8
2019-12-20 07:40:15 +08:00
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2020-01-14 Tom Tromey <tom@tromey.com>
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* configure, Makefile.in, aclocal.m4, common.m4, config.in:
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Rebuild.
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* common.m4 (GDB_AC_COMMON): Move many checks from
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gdb/configure.ac.
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* acinclude.m4: Include bfd.m4, ptrace.m4.
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Move gdbsupport to the top level
This patch moves the gdbsupport directory to the top level. This is
the next step in the ongoing project to move gdbserver to the top
level.
The bulk of this patch was created by "git mv gdb/gdbsupport gdbsupport".
This patch then adds a build system to gdbsupport and wires it into
the top level. Then it changes gdb to use the top-level build.
gdbserver, on the other hand, is not yet changed. It still does its
own build of gdbsupport.
ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* src-release.sh (GDB_SUPPORT_DIRS): Add gdbsupport.
* MAINTAINERS: Add gdbsupport.
* configure: Rebuild.
* configure.ac (configdirs): Add gdbsupport.
* gdbsupport: New directory, move from gdb/gdbsupport.
* Makefile.def (host_modules, dependencies): Add gnulib.
* Makefile.in: Rebuild.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* nat/x86-linux-dregs.c: Include configh.h.
* nat/linux-ptrace.c: Include configh.h.
* nat/linux-btrace.c: Include configh.h.
* defs.h: Include config.h, bfd.h.
* configure.ac: Don't source common.host.
(CONFIG_OBS, CONFIG_SRCS): Remove gdbsupport files.
* configure: Rebuild.
* acinclude.m4: Update path.
* Makefile.in (SUPPORT, LIBSUPPORT, INCSUPPORT): New variables.
(CONFIG_SRC_SUBDIR): Remove gdbsupport.
(INTERNAL_CFLAGS_BASE): Add INCSUPPORT.
(CLIBS): Add LIBSUPPORT.
(CDEPS): Likewise.
(COMMON_SFILES): Remove gdbsupport files.
(HFILES_NO_SRCDIR): Likewise.
(stamp-version): Update path to create-version.sh.
(ALLDEPFILES): Remove gdbsupport files.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* server.h: Include config.h.
* gdbreplay.c: Include config.h.
* configure: Rebuild.
* configure.ac: Don't source common.host.
* acinclude.m4: Update path.
* Makefile.in (INCSUPPORT): New variable.
(INCLUDE_CFLAGS): Add INCSUPPORT.
(SFILES): Update paths.
(version-generated.c): Update path to create-version.sh.
(gdbsupport/%-ipa.o, gdbsupport/%.o): Update paths.
gdbsupport/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* common-defs.h: Add GDBSERVER case. Update includes.
* acinclude.m4, aclocal.m4, config.in, configure, configure.ac,
Makefile.am, Makefile.in, README: New files.
* Moved from ../gdb/gdbsupport/
Change-Id: I07632e7798635c1bab389bf885971e584fb4bb78
2019-07-09 22:06:39 +08:00
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2020-01-14 Tom Tromey <tom@tromey.com>
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* common-defs.h: Add GDBSERVER case. Update includes.
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* acinclude.m4, aclocal.m4, config.in, configure, configure.ac,
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Makefile.am, Makefile.in, README: New files.
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* Moved from ../gdb/gdbsupport/
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