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This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
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Many test cases had a few lines in the beginning that look like:
if { condition } {
continue
}
Where conditions varied, but were mostly in the form of ![runto_main] or
[skip_*_tests], making it quite clear that this code block was supposed
to finish the test if it entered the code block. This generates TCL
errors, as most of these tests are not inside loops. All cases on which
this was an obvious mistake are changed in this patch.
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Solve two duplicate test names in the test script:
gdb.mi/mi-catch-cpp-exceptions.exp
by moving the call to restart_for_test inside the with_test_prefix
block. There should be no difference in what is tested after this
commit.
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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
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Since we now have mi_runto_main which is like runto_main, eliminate
mi_run_to_main, in favor of a new MI clean_restart counterpart --
mi_clean_restart -- and mi_runto_main.
This makes MI testcases look a bit more like CLI testcases.
gdb/testsuite/ChangeLog:
* lib/mi-support.exp (mi_clean_restart): New.
(mi_run_to_main): Delete.
All callers adjust to use mi_clean_restart / mi_runto_main.
Change-Id: I34920bab4fea1f23fb752928c2969c1f6ad714b6
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This adds an mi_runto_main routine, very much like the runto_main CLI
counterpart.
Note there's already a mi_run_to_main (extra underscore in "run_to"),
but unlike its intro comment says, that does more than the CLI's
runto_main -- it also starts GDB. I would like to eliminate that
other one by introducing a mi_clean_restart function instead. That is
done later in the series.
gdb/testsuite/ChangeLog:
* lib/mi-support.exp (mi_runto_main): New proc.
(mi_run_to_main): Use it.
* gdb.mi/mi-catch-cpp-exceptions.exp: Likewise.
* gdb.mi/mi-var-cmd.exp: Likewise.
* gdb.mi/mi-var-invalidate.exp: Likewise.
* mi-var-list-children-invalid-grandchild.exp: Likewise.
* gdb.mi/mi2-amd64-entry-value.exp: Likewise.
* gdb.mi/new-ui-mi-sync.exp: Likewise.
* gdb.mi/user-selected-context-sync.exp: Likewise.
* gdb.opt/inline-cmds.exp: Likewise.
* gdb.python/py-framefilter-mi.exp: Likewise.
* gdb.python/py-mi.exp: Likewise.
Change-Id: I2e49ca7b0b61cea57c1202e5dfa32417e6a4403d
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gdb/ChangeLog:
Update copyright year range in all GDB files.
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The tcl proc skip_libstdcxx_probe_tests currently returns 0 if the probe tests
need to be skipped, while tcl interprets 0 as false rather than true, which is
confusing.
Fix this by making skip_libstdcxx_probe_tests return 1 if the probe tests need
to be skipped.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-08-26 Tom de Vries <tdevries@suse.de>
* lib/gdb.exp (skip_libstdcxx_probe_tests_prompt): Return 1 if probe
* tests need to be skipped.
* gdb.cp/exceptprint.exp: Update call to skip_libstdcxx_probe_tests.
* gdb.mi/mi-catch-cpp-exceptions.exp: Update call to
mi_skip_libstdcxx_probe_tests.
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On a system without SDT probes in libstdc++, we run into:
...
FAIL: gdb.mi/mi-catch-cpp-exceptions.exp: all with invalid regexp: run until \
breakpoint in main (unknown output after running)
...
The test-case uses a regexp argument for the catch throw/rethrow/catch
command, which is only supported on systems with SDT probes in libstdc++.
Fix this by marking the portions of the test-case that use a regexp argument
as unsupported on a system without SDT probes.
Tested on x86_64-linux.
gdb/testsuite/ChangeLog:
2019-07-25 Tom de Vries <tdevries@suse.de>
PR testsuite/24830
* gdb.mi/mi-catch-cpp-exceptions.exp: Call
mi_skip_libstdcxx_probe_tests, and skip unsupported tests.
* lib/gdb.exp (skip_libstdcxx_probe_tests_prompt): Factor out of ...
(skip_libstdcxx_probe_tests): ... here.
* lib/mi-support.exp (mi_skip_libstdcxx_probe_tests): New proc.
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Non-const reference parameter should be avoided according to the GDB
coding standard:
https://sourceware.org/gdb/wiki/Internals%20GDB-C-Coding-Standards#Avoid_non-const_reference_parameters.2C_use_pointers_instead
This commit updates the gdbarch method gdbarch_stap_adjust_register,
and the one implementation i386_stap_adjust_register to avoid using a
non-const reference parameter.
I've also removed the kfail from the testsuite for bug 24541, as this
issue is now resolved.
gdb/ChangeLog:
PR breakpoints/24541
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
* gdbarch.sh: Adjust return type and parameter types for
'stap_adjust_register'.
(i386_stap_adjust_register): Adjust signature and return new
register name.
* stap-probe.c (stap_parse_register_operand): Adjust use of
'gdbarch_stap_adjust_register'.
gdb/testsuite/ChangeLog:
PR breakpoints/24541
* gdb.mi/mi-catch-cpp-exceptions.exp: Remove kfail due to 24541.
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Currently, with:
(gdb) catch catch
Catchpoint 1 (catch)
(gdb) catch throw
Catchpoint 2 (throw)
(gdb) catch rethrow
Catchpoint 3 (rethrow)
You get:
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y 0x0000000000b122af exception catch
2 breakpoint keep y 0x0000000000b1288d exception throw
3 breakpoint keep y 0x0000000000b12931 exception rethrow
I think it doesn't make much sense usability-wise, to show a
catchpoint as a breakpoint. The fact that GDB sets a breakpoint at
some magic address in the C++ run time is an implementation detail,
IMO. And as seen in the previous patch, such a catchpoint can end up
with more than one location/address even, so showing a single address
isn't entirely accurate.
This commit hides the addresses from view, and makes GDB show
"catchpoint" for type as well:
(gdb) info breakpoints
Num Type Disp Enb Address What
1 catchpoint keep y exception catch
2 catchpoint keep y exception throw
3 catchpoint keep y exception rethrow
This comment in the code seems telling:
/* We need to reset 'type' in order for code in breakpoint.c to do
the right thing. */
cp->type = bp_breakpoint;
It kind of suggests that the reason catchpoints end up shown as
breakpoints was that it was easier to implement them that way, rather
than a desired property.
This commit fixes things up to make it possible to have bp_catch
breakpoints have software/hardware breakpoint locations, thus
eliminating the need for that hack:
- redo breakpoint_address_is_meaningful in terms of the location's
type rather than breakpoint type.
- teach bpstat_what about stepping over the catchpoint locations.
- install a allocate_location method for "catch catch/throw/rethrow",
one that forces the location type.
Note that this also reverts the gdb hunk from:
commit 2a8be20359dba9cc684fd3ffa222d985399f3b18
Commit: Tom Tromey <tom@tromey.com>
CommitDate: Sat Oct 6 22:17:45 2018 -0600
Fix Python gdb.Breakpoint.location crash
because now "catch throw" catchpoints hit the
if (obj->bp->type != bp_breakpoint)
Py_RETURN_NONE;
check above, and, adjusts the testcase to no longer expect to see the
catchpoint in the gdb.breakpoints() list.
(Note: might make sense to do the same to Ada exception catchpoints.)
gdb/ChangeLog:
2019-07-09 Pedro Alves <palves@redhat.com>
* break-catch-throw.c (print_one_exception_catchpoint): Skip the
"addr" field.
(allocate_location_exception_catchpoint): New.
(handle_gnu_v3_exceptions): Don't reset 'type' to bp_breakpoint.
(initialize_throw_catchpoint_ops): Install
allocate_location_exception_catchpoint as allocate_location
method.
* breakpoint.c (bpstat_what) <bp_catch>: Set action to
BPSTAT_WHAT_SINGLE if not stopping and the location's type is not
bp_loc_other.
(breakpoint_address_is_meaningful): Delete.
(bl_address_is_meaningful): New.
(breakpoint_locations_match): Adjust comment.
(bp_location_from_bp_type): New, factored out of...
(bp_location::bp_location(breakpoint *)): ... this.
(bp_location::bp_location(breakpoint *, bp_loc_type)): New,
factored out of...
(bp_location::bp_location(breakpoint *)): ... this. Reimplement.
(bp_loc_is_permanent): Use bl_address_is_meaningful instead of
breakpoint_address_is_meaningful.
(bp_locations_compare): Adjust comment.
(update_global_location_list): Use bl_address_is_meaningful
instead of breakpoint_address_is_meaningful.
* breakpoint.h (bp_location::bp_location(breakpoint *)): New
explicit.
(bp_location::bp_location(breakpoint *, bp_loc_type)): Declare.
* python/py-breakpoint.c (bppy_get_location): No longer check
whether location is null.
gdb/doc/ChangeLog:
2019-07-09 Pedro Alves <palves@redhat.com>
* gdb.texinfo (C++ Exception GDB/MI Catchpoint Commands): Adjust
examples to show type=catchpoint instead of type=breakpoint and an
address.
gdb/testsuite/ChangeLog:
2019-07-09 Pedro Alves <palves@redhat.com>
* gdb.cp/catch-multi-stdlib.exp: Adjust expected "info
breakpoints" output.
* gdb.cp/exception.exp: Adjust expected "info breakpoints" output.
* gdb.python/py-breakpoint.exp: No longer expect that "catch
throw" creates breakpoint.
* gdb.mi/mi-catch-cpp-exceptions.exp (setup_catchpoint): Expect
'type="catchpoint"'.
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In bug gdb/24686 a testsuite failure was reported, this failure was
actually just another instance of bug gdb/24541, however, due to the
non-deterministic nature of bug gdb/24541 the testsuite pattern that
was intended to catch this bug failed.
This commit adds a second pattern to help detect gdb/24541, which
should change the FAIL reported in gdb/24686 into a KFAIL.
gdb/testsuite/ChangeLog:
PR gdb/24686
* gdb.mi/mi-catch-cpp-exceptions.exp: Add an extra pattern to
improve detection of bug gdb/24541.
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Adds some MI commands to catch C++ exceptions. The new commands are
-catch-throw, -catch-rethrow, and -catch-catch, these all correspond
to the CLI commands 'catch throw', 'catch rethrow', and 'catch catch'.
Each MI command takes two optional arguments, '-t' has the effect of
calling 'tcatch' instead of 'catch', for example:
(gdb)
-catch-throw -t
Is the same as:
(gdb) tcatch throw
There is also a '-r REGEXP' argument that can supply a regexp to match
against the exception type, so:
(gdb)
-catch-catch -r PATTERN
Is the same as:
(gdb) catch catch PATTERN
The change in print_mention_exception_catchpoint might seem a little
strange; changing the output from using ui_out::field_int and
ui_out::text to using ui_out::message.
The print_mention_exception_catchpoint is used as the 'print_mention'
method for the exception catchpoint breakpoint object. Most of the
other 'print_mention' methods (see breakpoint.c) use either
printf_filtered, of ui_out::message. Using field_int was causing an
unexpected field to be added to the MI output. Here's the output
without the change in print_mention_exception_catchpoint:
(gdb)
-catch-throw
^done,bkptno="1",bkpt={number="1",type="breakpoint",disp="keep",
enabled="y",addr="0x00000000004006c0",
what="exception throw",catch-type="throw",
thread-groups=["i1"],times="0"}
Notice the breakpoint number appears in both the 'bkptno' field, and
the 'number' field within the 'bkpt' tuple. Here's the output with
the change in print_mention_exception_catchpoint:
(gdb)
-catch-throw
^done,bkpt={number="1",type="breakpoint",disp="keep",
enabled="y",addr="0x00000000004006c0",
what="exception throw",catch-type="throw",
thread-groups=["i1"],times="0"}
gdb/ChangeLog:
* NEWS: Mention new MI commands.
* break-catch-throw.c (enum exception_event_kind): Move to
breakpoint.h.
(print_mention_exception_catchpoint): Output text as a single
message.
(catch_exception_command_1): Rename to...
(catch_exception_event): ...this, make non-static, update header
command, and change some parameter types.
(catch_catch_command): Update for changes to
catch_exception_command_1.
(catch_throw_command): Likewise.
(catch_rethrow_command): Likewise.
* breakpoint.c (enum exception_event_kind): Delete.
* breakpoint.h (enum exception_event_kind): Moved here from
break-catch-throw.c.
(catch_exception_event): Declare.
* mi/mi-cmd-catch.c (mi_cmd_catch_exception_event): New function.
(mi_cmd_catch_throw): New function.
(mi_cmd_catch_rethrow): New function.
(mi_cmd_catch_catch): New function.
* mi/mi-cmds.c (mi_cmds): Add 'catch-throw', 'catch-rethrow', and
'catch-catch' entries.
* mi/mi-cmds.h (mi_cmd_catch_throw): Declare.
(mi_cmd_catch_rethrow): Declare.
(mi_cmd_catch_catch): Declare.
gdb/doc/ChangeLog:
* gdb.texinfo (GDB/MI Catchpoint Commands): Add menu entry to new
node.
(C++ Exception GDB/MI Catchpoint Commands): New node to describe
new MI commands.
gdb/testsuite/ChangeLog:
* gdb.mi/mi-catch-cpp-exceptions.cc: New file.
* gdb.mi/mi-catch-cpp-exceptions.exp: New file.
* lib/mi-support.exp (mi_expect_stop): Handle 'exception-caught'
as a stop reason.
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