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Tom Tromey 94aeb44b00 Make exception handling more efficient 
This makes exception handling more efficient in a few spots, through
the use of const- and rvalue-references.

I wrote this patch by commenting out the gdb_exception copy
constructor and then examining the resulting error messages one by
one, introducing the use of std::move where appropriate.

gdb/ChangeLog
2019-04-25  Tom Tromey  <tromey@adacore.com>

	* xml-support.c (struct gdb_xml_parser) <set_error>: Take an
	rvalue reference.
	(gdb_xml_start_element_wrapper, gdb_xml_end_element_wrapper)
	(gdb_xml_parser::parse): Use std::move.
	* python/python-internal.h (gdbpy_convert_exception): Take a const
	reference.
	* python/py-value.c (valpy_getitem, valpy_nonzero): Use
	std::move.
	* python/py-utils.c (gdbpy_convert_exception): Take a const
	reference.
	* python/py-inferior.c (infpy_write_memory, infpy_search_memory):
	Use std::move.
	* python/py-breakpoint.c (bppy_set_condition, bppy_set_commands):
	Use std::move.
	* mi/mi-main.c (mi_print_exception): Take a const reference.
	* main.c (handle_command_errors): Take a const reference.
	* linespec.c (parse_linespec): Use std::move.
	* infcall.c (run_inferior_call): Use std::move.
	(call_function_by_hand_dummy): Use std::move.
	* exec.c (try_open_exec_file): Use std::move.
	* exceptions.h (exception_print, exception_fprintf)
	(exception_print_same): Update.
	* exceptions.c (print_exception, exception_print)
	(exception_fprintf, exception_print_same): Change parameters to
	const reference.
	* event-top.c (gdb_rl_callback_read_char_wrapper): Update.
	* common/new-op.c: Use std::move.
	* common/common-exceptions.h (struct gdb_exception): Add move
	constructor.
	(struct gdb_exception_error, struct gdb_exception_quit, struct
	gdb_quit_bad_alloc): Change constructor to move constructor.
	(throw_exception): Change parameter to rvalue reference.
	* common/common-exceptions.c (throw_exception): Take rvalue
	reference.
	* cli/cli-interp.c (safe_execute_command): Use std::move.
	* breakpoint.c (insert_bp_location, location_to_sals): Use
	std::move.
 		2019-04-25 12:59:35 -06:00
..
agent.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
agent.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
array-view.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
ax.def Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
break-common.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
btrace-common.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
btrace-common.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
buffer.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
buffer.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
byte-vector.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
cleanups.c Remove basic cleanup code 2019-03-06 16:04:31 -07:00
cleanups.h Remove basic cleanup code 2019-03-06 16:04:31 -07:00
common-debug.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
common-debug.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common-defs.h Introduce ATTRIBUTE_UNUSED_RESULT and use it 2019-03-05 08:48:39 -07:00
common-exceptions.c Make exception handling more efficient 2019-04-25 12:59:35 -06:00
common-exceptions.h Make exception handling more efficient 2019-04-25 12:59:35 -06:00
common-gdbthread.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common-inferior.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common-regcache.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
common-regcache.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common-types.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common-utils.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
common-utils.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
common.host Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
common.m4 Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
create-version.sh Update create-version.sh to use common/version.h 2019-01-25 15:28:16 -07:00
def-vector.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
default-init-alloc.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
enum-flags.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
environ.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
environ.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
errors.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
errors.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
fileio.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
fileio.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
filestuff.c Remove last cleanup from linux-namespaces.c 2019-03-06 16:04:31 -07:00
filestuff.h Remove last cleanup from linux-namespaces.c 2019-03-06 16:04:31 -07:00
filtered-iterator.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
format.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
format.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
forward-scope-exit.h Fix clang/libc++ build 2019-01-24 18:01:49 +00:00
function-view.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_assert.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_locale.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_optional.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_proc_service.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_ref_ptr.h Add ATTRIBUTE_UNUSED_RESULT to ref_ptr::release 2019-03-05 08:48:40 -07:00
gdb_setjmp.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_signals.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_splay_tree.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_string_view.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_string_view.tcc Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_sys_time.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_tilde_expand.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_tilde_expand.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_unique_ptr.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_unlinker.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_vecs.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
gdb_vecs.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
gdb_wait.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
hash_enum.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
host-defs.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
job-control.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
job-control.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
mingw-strerror.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
netstuff.c Fix GDB compilation on MinGW (PR gdb/24292) 2019-03-02 15:13:54 +02:00
netstuff.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
new-op.c Make exception handling more efficient 2019-04-25 12:59:35 -06:00
next-iterator.h Remove ALL_OBJFILES_SAFE 2019-01-09 18:28:14 -07:00
observable.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
offset-type.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
pathstuff.c Add a new function child_path. 2019-02-12 13:56:16 -08:00
pathstuff.h Add a new function child_path. 2019-02-12 13:56:16 -08:00
poison.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
posix-strerror.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
preprocessor.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
print-utils.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
print-utils.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
ptid.c Make null_ptid and minus_one_ptid "const" 2019-03-12 10:45:37 -06:00
ptid.h Make null_ptid and minus_one_ptid "const" 2019-03-12 10:45:37 -06:00
refcounted-object.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
rsp-low.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
rsp-low.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
run-time-clock.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
run-time-clock.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
safe-iterator.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
scope-exit.h Introduce scope_exit 2019-01-23 19:02:58 +00:00
scoped_fd.h Add ATTRIBUTE_UNUSED_RESULT to scoped_fd 2019-03-05 08:48:40 -07:00
scoped_mmap.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
scoped_mmap.h Add ATTRIBUTE_UNUSED_RESULT to scoped_mmap 2019-03-05 08:48:40 -07:00
scoped_restore.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
selftest.c Rename gdb exception types 2019-04-08 09:05:40 -06:00
selftest.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
signals-state-save-restore.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
signals-state-save-restore.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
signals.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
symbol.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
tdesc.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
tdesc.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
traits.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
underlying.h Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
valid-expr.h Rename ESC -> ESC_PARENS 2019-01-23 18:58:28 +00:00
vec.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
vec.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
version.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
x86-xstate.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00
xml-utils.c Update copyright year range in all GDB files. 2019-01-01 10:01:51 +04:00
xml-utils.h Normalize include guards in gdb 2019-02-07 03:27:23 -07:00