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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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I looked through all the uses of static_cast<... *> in gdb and
converted many of them to checked_static_cast.
I couldn't test a few of these changes.
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I went through all the uses of dynamic_cast<> in gdb, looking for ones
that could be replaced with checked_static_cast. This patch is the
result. Regression tested on x86-64 Fedora 34.
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This converts set_location_spec_string to a method of location_spec,
and makes the location_spec::as_string field protected, renaming it to
m_as_string along the way.
Change-Id: Iccfb1654e9fa7808d0512df89e775f9eacaeb9e0
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This converts location_spec_to_string to a method of location_spec,
simplifying the code using it, as it no longer has to use
std::unique_ptr::get().
Change-Id: I621bdad8ea084470a2724163f614578caf8f2dd5
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This converts location_spec_type to location_spec::type().
Change-Id: Iff4cbfafb1cf3d22adfa142ff939b4a148e52273
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This converts location_spec_empty_p to a method of location_spec,
simplifying users, as they no longer have to use
std::unique_ptr::get().
Change-Id: I83381a729896f12e1c5a1b4d6d4c2eb1eb6582ff
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copy_location_spec is just a wrapper around location_spec::clone(), so
remove it and call clone() directly. This simplifies users, as they
no longer have to use std::unique_ptr::get().
Change-Id: I8ce8658589460b98888283b306b315a5b8f73976
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Currently, there's the location_spec hierarchy, and then some
location_spec subclasses have their own struct type holding all their
data fields.
I.e., there is this:
location_spec
explicit_location_spec
linespec_location_spec
address_location_spec
probe_location_spec
and then these separate types:
explicit_location
linespec_location
where:
explicit_location_spec
has-a explicit_location
linespec_location_spec
has-a linespec_location
This patch eliminates explicit_location and linespec_location,
inlining their members in the corresponding location_spec type.
The location_spec subclasses were the ones currently defined in
location.c, so they are moved to the header. Since the definitions of
the classes are now visible, we no longer need location_spec_deleter.
Some constructors that are used for cloning location_specs, like:
explicit explicit_location_spec (const struct explicit_location *loc)
... were converted to proper copy ctors.
In the process, initialize_explicit_location is eliminated, and some
functions that returned the "data type behind a locspec", like
get_linespec_location are converted to downcast functions, like
as_linespec_location_spec.
Change-Id: Ia31ccef9382b25a52b00fa878c8df9b8cf2a6c5a
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Currently, GDB internally uses the term "location" for both the
location specification the user input (linespec, explicit location, or
an address location), and for actual resolved locations, like the
breakpoint locations, or the result of decoding a location spec to
SaLs. This is expecially confusing in the breakpoints module, as
struct breakpoint has these two fields:
breakpoint::location;
breakpoint::loc;
"location" is the location spec, and "loc" is the resolved locations.
And then, we have a method called "locations()", which returns the
resolved locations as range...
The location spec type is presently called event_location:
/* Location we used to set the breakpoint. */
event_location_up location;
and it is described like this:
/* The base class for all an event locations used to set a stop event
in the inferior. */
struct event_location
{
and even that is incorrect... Location specs are used for finding
actual locations in the program in scenarios that have nothing to do
with stop events. E.g., "list" works with location specs.
To clean all this confusion up, this patch renames "event_location" to
"location_spec" throughout, and then all the variables that hold a
location spec, they are renamed to include "spec" in their name, like
e.g., "location" -> "locspec". Similarly, functions that work with
location specs, and currently have just "location" in their name are
renamed to include "spec" in their name too.
Change-Id: I5814124798aa2b2003e79496e78f95c74e5eddca
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While working on the fix for PR cli/28665 (see previous couple of
commits), I was playing with making a change in the linespec parsing
code. Specifically, I was thinking about whether the spec_string for
LINESPEC_LOCATION locations should ever be nullptr.
I made a change to prevent the spec_string from ever being nullptr,
tested gdb, and saw no regressions.
However, as part of this work I was reviewing how the breakpoint code
handles this case (spec_string being nullptr), and spotted that in
parse_breakpoint_sals the nullptr case is specifically handled, so
changing this should have caused a regression. But I didn't see one.
So, this commit adds a comment in location.c mentioning that the
nullptr case is (a) not an oversight, and (b) is required. Then I add
a new test to gdb.base/break.exp that ensures a change in this area
will cause a regression.
This test passes on current gdb, but with my modified (and broken)
gdb, the test would fail.
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A common pattern for string_file is to want to move out the internal
string buffer, because it is the result of the computation that we want
to return. It is the reason why string_file::string returns a non-const
reference, as explained in the comment. I think it would make sense to
have a dedicated method for that instead and make string_file::string
return a const reference.
This allows removing the explicit std::move in the typical case. Note
that compile_program::compute was missing a move, meaning that the
resulting string was copied. With the new version, it's not possible to
forget to move.
Change-Id: Ieaefa35b73daa7930b2f3a26988b6e3b4121bb79
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event_location_probe currently stores two strings, but really only
needs one. This patch simplifies it and removes some unnecessary
copies as well.
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This changes event_location to use std::string, removing some manual
memory management, and an unnecessary string copy.
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event_location uses the old C-style discriminated union approach.
However, it's better to use subclassing, as this makes the code
clearer and removes some chances for error. This also enables future
cleanups to avoid manual memory management and copies.
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This patch removes the old-style EL_* macros from location.c. This
cleans up the code by itself, IMO, but also enables further cleanups
in subsequent patches.
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This changes explicit_to_string_internal to use 'bool' rather than
'int'.
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This small cleanup removes a use of xfree from location.c, by
switching to unique_xmalloc_ptr. One function is only used in
location.c, so it is made static. And, another function is changed to
avoid a copy.
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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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The motivation is to reduce the number of places where unmanaged
pointers are returned from allocation type routines. All of the
callers are updated.
There should be no user visible changes after this commit.
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Compiling GDB with current GCC (1b4a63593b) runs into this:
src/gdb/location.c: In function 'int event_location_empty_p(const event_location*)':
src/gdb/location.c:963:38: error: the address of 'event_location::<unnamed union>::explicit_loc' will never be NULL [-Werror=address]
963 | return (EL_EXPLICIT (location) == NULL
| ^
src/gdb/location.c:57:30: note: 'event_location::<unnamed union>::explicit_loc' declared here
57 | struct explicit_location explicit_loc;
| ^~~~~~~~~~~~
GCC is right, EL_EXPLICIT is defined as returning the address of an
union field:
/* An explicit location. */
struct explicit_location explicit_loc;
#define EL_EXPLICIT(P) (&((P)->u.explicit_loc))
and thus must always be non-NULL.
Change-Id: Ie74fee7834495a93affcefce03c06e4d83ad8191
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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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gdb/ChangeLog:
Update copyright year range in all GDB files.
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This is the next patch in the ongoing series to move gdbsever to the
top level.
This patch just renames the "common" directory. The idea is to do
this move in two parts: first rename the directory (this patch), then
move the directory to the top. This approach makes the patches a bit
more tractable.
I chose the name "gdbsupport" for the directory. However, as this
patch was largely written by sed, we could pick a new name without too
much difficulty.
Tested by the buildbot.
gdb/ChangeLog
2019-07-09 Tom Tromey <tom@tromey.com>
* contrib/ari/gdb_ari.sh: Change common to gdbsupport.
* configure: Rebuild.
* configure.ac: Change common to gdbsupport.
* gdbsupport: Rename from common.
* acinclude.m4: Change common to gdbsupport.
* Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES)
(HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to
gdbsupport.
* aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c,
amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c,
amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c,
amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c,
amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c,
arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c,
arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c,
arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c,
arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c,
auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h,
btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c,
charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c,
cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c,
coff-pe-read.c, command.h, compile/compile-c-support.c,
compile/compile-c.h, compile/compile-cplus-symbols.c,
compile/compile-cplus-types.c, compile/compile-cplus.h,
compile/compile-loc2c.c, compile/compile.c, completer.c,
completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c,
cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c,
darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c,
disasm.h, dtrace-probe.c, dwarf-index-cache.c,
dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c,
dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c,
event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c,
features/aarch64-core.c, features/aarch64-fpu.c,
features/aarch64-pauth.c, features/aarch64-sve.c,
features/i386/32bit-avx.c, features/i386/32bit-avx512.c,
features/i386/32bit-core.c, features/i386/32bit-linux.c,
features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c,
features/i386/32bit-segments.c, features/i386/32bit-sse.c,
features/i386/64bit-avx.c, features/i386/64bit-avx512.c,
features/i386/64bit-core.c, features/i386/64bit-linux.c,
features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c,
features/i386/64bit-segments.c, features/i386/64bit-sse.c,
features/i386/x32-core.c, features/riscv/32bit-cpu.c,
features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c,
features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c,
features/riscv/64bit-fpu.c, features/tic6x-c6xp.c,
features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h,
findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h,
gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c,
gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c,
go32-nat.c, guile/guile.c, guile/scm-ports.c,
guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c,
i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c,
i386-linux-tdep.c, i386-tdep.c, i387-tdep.c,
ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c,
inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h,
inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h,
inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, location.c, machoread.c,
macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h,
mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c,
mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h,
minsyms.c, mips-linux-tdep.c, namespace.h,
nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h,
nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c,
nat/amd64-linux-siginfo.c, nat/fork-inferior.c,
nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c,
nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c,
nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h,
nat/linux-waitpid.c, nat/mips-linux-watch.c,
nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c,
nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c,
nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h,
obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c,
parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c,
procfs.c, producer.c, progspace.h, psymtab.h,
python/py-framefilter.c, python/py-inferior.c, python/py-ref.h,
python/py-type.c, python/python.c, record-btrace.c, record-full.c,
record.c, record.h, regcache-dump.c, regcache.c, regcache.h,
remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c,
riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c,
selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c,
ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c,
source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c,
stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h,
symtab.c, symtab.h, target-descriptions.c, target-descriptions.h,
target-memory.c, target.c, target.h, target/waitstatus.c,
target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c,
top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c,
tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h,
unittests/array-view-selftests.c,
unittests/child-path-selftests.c, unittests/cli-utils-selftests.c,
unittests/common-utils-selftests.c,
unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c,
unittests/format_pieces-selftests.c,
unittests/function-view-selftests.c,
unittests/lookup_name_info-selftests.c,
unittests/memory-map-selftests.c, unittests/memrange-selftests.c,
unittests/mkdir-recursive-selftests.c,
unittests/observable-selftests.c,
unittests/offset-type-selftests.c, unittests/optional-selftests.c,
unittests/parse-connection-spec-selftests.c,
unittests/ptid-selftests.c, unittests/rsp-low-selftests.c,
unittests/scoped_fd-selftests.c,
unittests/scoped_mmap-selftests.c,
unittests/scoped_restore-selftests.c,
unittests/string_view-selftests.c, unittests/style-selftests.c,
unittests/tracepoint-selftests.c, unittests/unpack-selftests.c,
unittests/utils-selftests.c, unittests/xml-utils-selftests.c,
utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c,
value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c,
xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c,
xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport.
gdb/gdbserver/ChangeLog
2019-07-09 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Change common to gdbsupport.
* acinclude.m4: Change common to gdbsupport.
* Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS)
(version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change
common to gdbsupport.
* ax.c, event-loop.c, fork-child.c, gdb_proc_service.h,
gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c,
inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c,
linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c,
linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c,
linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h,
nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c,
server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h,
thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change
common to gdbsupport.
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This changes all includes to use the form "common/filename.h" rather
than just "filename.h". This was written by a script.
gdb/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* xtensa-linux-nat.c: Fix common/ includes.
* xml-support.h: Fix common/ includes.
* xml-support.c: Fix common/ includes.
* x86-linux-nat.c: Fix common/ includes.
* windows-nat.c: Fix common/ includes.
* varobj.h: Fix common/ includes.
* varobj.c: Fix common/ includes.
* value.c: Fix common/ includes.
* valops.c: Fix common/ includes.
* utils.c: Fix common/ includes.
* unittests/xml-utils-selftests.c: Fix common/ includes.
* unittests/utils-selftests.c: Fix common/ includes.
* unittests/unpack-selftests.c: Fix common/ includes.
* unittests/tracepoint-selftests.c: Fix common/ includes.
* unittests/style-selftests.c: Fix common/ includes.
* unittests/string_view-selftests.c: Fix common/ includes.
* unittests/scoped_restore-selftests.c: Fix common/ includes.
* unittests/scoped_mmap-selftests.c: Fix common/ includes.
* unittests/scoped_fd-selftests.c: Fix common/ includes.
* unittests/rsp-low-selftests.c: Fix common/ includes.
* unittests/parse-connection-spec-selftests.c: Fix common/
includes.
* unittests/optional-selftests.c: Fix common/ includes.
* unittests/offset-type-selftests.c: Fix common/ includes.
* unittests/observable-selftests.c: Fix common/ includes.
* unittests/mkdir-recursive-selftests.c: Fix common/ includes.
* unittests/memrange-selftests.c: Fix common/ includes.
* unittests/memory-map-selftests.c: Fix common/ includes.
* unittests/lookup_name_info-selftests.c: Fix common/ includes.
* unittests/function-view-selftests.c: Fix common/ includes.
* unittests/environ-selftests.c: Fix common/ includes.
* unittests/copy_bitwise-selftests.c: Fix common/ includes.
* unittests/common-utils-selftests.c: Fix common/ includes.
* unittests/cli-utils-selftests.c: Fix common/ includes.
* unittests/array-view-selftests.c: Fix common/ includes.
* ui-file.c: Fix common/ includes.
* tui/tui-io.c: Fix common/ includes.
* tracepoint.h: Fix common/ includes.
* tracepoint.c: Fix common/ includes.
* tracefile-tfile.c: Fix common/ includes.
* top.h: Fix common/ includes.
* top.c: Fix common/ includes.
* thread.c: Fix common/ includes.
* target/waitstatus.h: Fix common/ includes.
* target/waitstatus.c: Fix common/ includes.
* target.h: Fix common/ includes.
* target.c: Fix common/ includes.
* target-memory.c: Fix common/ includes.
* target-descriptions.c: Fix common/ includes.
* symtab.h: Fix common/ includes.
* symfile.c: Fix common/ includes.
* stap-probe.c: Fix common/ includes.
* spu-linux-nat.c: Fix common/ includes.
* sparc-nat.c: Fix common/ includes.
* source.c: Fix common/ includes.
* solib.c: Fix common/ includes.
* solib-target.c: Fix common/ includes.
* ser-unix.c: Fix common/ includes.
* ser-tcp.c: Fix common/ includes.
* ser-pipe.c: Fix common/ includes.
* ser-base.c: Fix common/ includes.
* selftest-arch.c: Fix common/ includes.
* s12z-tdep.c: Fix common/ includes.
* rust-exp.y: Fix common/ includes.
* rs6000-aix-tdep.c: Fix common/ includes.
* riscv-tdep.c: Fix common/ includes.
* remote.c: Fix common/ includes.
* remote-notif.h: Fix common/ includes.
* remote-fileio.h: Fix common/ includes.
* remote-fileio.c: Fix common/ includes.
* regcache.h: Fix common/ includes.
* regcache.c: Fix common/ includes.
* record-btrace.c: Fix common/ includes.
* python/python.c: Fix common/ includes.
* python/py-type.c: Fix common/ includes.
* python/py-inferior.c: Fix common/ includes.
* progspace.h: Fix common/ includes.
* producer.c: Fix common/ includes.
* procfs.c: Fix common/ includes.
* proc-api.c: Fix common/ includes.
* printcmd.c: Fix common/ includes.
* ppc-linux-nat.c: Fix common/ includes.
* parser-defs.h: Fix common/ includes.
* osdata.c: Fix common/ includes.
* obsd-nat.c: Fix common/ includes.
* nat/x86-linux.c: Fix common/ includes.
* nat/x86-linux-dregs.c: Fix common/ includes.
* nat/x86-dregs.h: Fix common/ includes.
* nat/x86-dregs.c: Fix common/ includes.
* nat/ppc-linux.c: Fix common/ includes.
* nat/mips-linux-watch.h: Fix common/ includes.
* nat/mips-linux-watch.c: Fix common/ includes.
* nat/linux-waitpid.c: Fix common/ includes.
* nat/linux-ptrace.h: Fix common/ includes.
* nat/linux-ptrace.c: Fix common/ includes.
* nat/linux-procfs.c: Fix common/ includes.
* nat/linux-personality.c: Fix common/ includes.
* nat/linux-osdata.c: Fix common/ includes.
* nat/linux-namespaces.c: Fix common/ includes.
* nat/linux-btrace.h: Fix common/ includes.
* nat/linux-btrace.c: Fix common/ includes.
* nat/fork-inferior.c: Fix common/ includes.
* nat/amd64-linux-siginfo.c: Fix common/ includes.
* nat/aarch64-sve-linux-ptrace.c: Fix common/ includes.
* nat/aarch64-linux.c: Fix common/ includes.
* nat/aarch64-linux-hw-point.h: Fix common/ includes.
* nat/aarch64-linux-hw-point.c: Fix common/ includes.
* namespace.h: Fix common/ includes.
* mips-linux-tdep.c: Fix common/ includes.
* minsyms.c: Fix common/ includes.
* mi/mi-parse.h: Fix common/ includes.
* mi/mi-main.c: Fix common/ includes.
* mi/mi-cmd-env.c: Fix common/ includes.
* memrange.h: Fix common/ includes.
* memattr.c: Fix common/ includes.
* maint.h: Fix common/ includes.
* maint.c: Fix common/ includes.
* main.c: Fix common/ includes.
* machoread.c: Fix common/ includes.
* location.c: Fix common/ includes.
* linux-thread-db.c: Fix common/ includes.
* linux-nat.c: Fix common/ includes.
* linux-fork.c: Fix common/ includes.
* inline-frame.c: Fix common/ includes.
* infrun.c: Fix common/ includes.
* inflow.c: Fix common/ includes.
* inferior.h: Fix common/ includes.
* inferior.c: Fix common/ includes.
* infcmd.c: Fix common/ includes.
* inf-ptrace.c: Fix common/ includes.
* inf-child.c: Fix common/ includes.
* ia64-linux-nat.c: Fix common/ includes.
* i387-tdep.c: Fix common/ includes.
* i386-tdep.c: Fix common/ includes.
* i386-linux-tdep.c: Fix common/ includes.
* i386-linux-nat.c: Fix common/ includes.
* i386-go32-tdep.c: Fix common/ includes.
* i386-fbsd-tdep.c: Fix common/ includes.
* i386-fbsd-nat.c: Fix common/ includes.
* guile/scm-type.c: Fix common/ includes.
* guile/guile.c: Fix common/ includes.
* go32-nat.c: Fix common/ includes.
* gnu-nat.c: Fix common/ includes.
* gdbthread.h: Fix common/ includes.
* gdbarch-selftests.c: Fix common/ includes.
* gdb_usleep.c: Fix common/ includes.
* gdb_select.h: Fix common/ includes.
* gdb_bfd.c: Fix common/ includes.
* gcore.c: Fix common/ includes.
* fork-child.c: Fix common/ includes.
* findvar.c: Fix common/ includes.
* fbsd-nat.c: Fix common/ includes.
* event-top.c: Fix common/ includes.
* event-loop.c: Fix common/ includes.
* dwarf2read.c: Fix common/ includes.
* dwarf2loc.c: Fix common/ includes.
* dwarf2-frame.c: Fix common/ includes.
* dwarf-index-cache.c: Fix common/ includes.
* dtrace-probe.c: Fix common/ includes.
* disasm-selftests.c: Fix common/ includes.
* defs.h: Fix common/ includes.
* csky-tdep.c: Fix common/ includes.
* cp-valprint.c: Fix common/ includes.
* cp-support.h: Fix common/ includes.
* cp-support.c: Fix common/ includes.
* corelow.c: Fix common/ includes.
* completer.h: Fix common/ includes.
* completer.c: Fix common/ includes.
* compile/compile.c: Fix common/ includes.
* compile/compile-loc2c.c: Fix common/ includes.
* compile/compile-cplus-types.c: Fix common/ includes.
* compile/compile-cplus-symbols.c: Fix common/ includes.
* command.h: Fix common/ includes.
* cli/cli-dump.c: Fix common/ includes.
* cli/cli-cmds.c: Fix common/ includes.
* charset.c: Fix common/ includes.
* build-id.c: Fix common/ includes.
* btrace.h: Fix common/ includes.
* btrace.c: Fix common/ includes.
* breakpoint.h: Fix common/ includes.
* breakpoint.c: Fix common/ includes.
* ax.h:
(enum agent_op): Fix common/ includes.
* ax-general.c (struct aop_map): Fix common/ includes.
* ax-gdb.c: Fix common/ includes.
* auxv.c: Fix common/ includes.
* auto-load.c: Fix common/ includes.
* arm-tdep.c: Fix common/ includes.
* arch/riscv.c: Fix common/ includes.
* arch/ppc-linux-common.c: Fix common/ includes.
* arch/i386.c: Fix common/ includes.
* arch/arm.c: Fix common/ includes.
* arch/arm-linux.c: Fix common/ includes.
* arch/arm-get-next-pcs.c: Fix common/ includes.
* arch/amd64.c: Fix common/ includes.
* arch/aarch64.c: Fix common/ includes.
* arch/aarch64-insn.c: Fix common/ includes.
* arch-utils.c: Fix common/ includes.
* amd64-windows-tdep.c: Fix common/ includes.
* amd64-tdep.c: Fix common/ includes.
* amd64-sol2-tdep.c: Fix common/ includes.
* amd64-obsd-tdep.c: Fix common/ includes.
* amd64-nbsd-tdep.c: Fix common/ includes.
* amd64-linux-tdep.c: Fix common/ includes.
* amd64-linux-nat.c: Fix common/ includes.
* amd64-fbsd-tdep.c: Fix common/ includes.
* amd64-fbsd-nat.c: Fix common/ includes.
* amd64-dicos-tdep.c: Fix common/ includes.
* amd64-darwin-tdep.c: Fix common/ includes.
* agent.c: Fix common/ includes.
* ada-lang.h: Fix common/ includes.
* ada-lang.c: Fix common/ includes.
* aarch64-tdep.c: Fix common/ includes.
gdb/gdbserver/ChangeLog
2019-01-25 Tom Tromey <tom@tromey.com>
* win32-low.c: Fix common/ includes.
* win32-i386-low.c: Fix common/ includes.
* tracepoint.c: Fix common/ includes.
* thread-db.c: Fix common/ includes.
* target.h: Fix common/ includes.
* symbol.c: Fix common/ includes.
* spu-low.c: Fix common/ includes.
* server.h: Fix common/ includes.
* server.c: Fix common/ includes.
* remote-utils.c: Fix common/ includes.
* regcache.h: Fix common/ includes.
* regcache.c: Fix common/ includes.
* nto-x86-low.c: Fix common/ includes.
* notif.h: Fix common/ includes.
* mem-break.h: Fix common/ includes.
* lynx-low.c: Fix common/ includes.
* lynx-i386-low.c: Fix common/ includes.
* linux-x86-tdesc-selftest.c: Fix common/ includes.
* linux-x86-low.c: Fix common/ includes.
* linux-low.c: Fix common/ includes.
* inferiors.h: Fix common/ includes.
* i387-fp.c: Fix common/ includes.
* hostio.c: Fix common/ includes.
* hostio-errno.c: Fix common/ includes.
* gdbthread.h: Fix common/ includes.
* gdbreplay.c: Fix common/ includes.
* fork-child.c: Fix common/ includes.
* event-loop.c: Fix common/ includes.
* ax.c:
(enum gdb_agent_op): Fix common/ includes.
|
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This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
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gdb/ChangeLog:
Update copyright year range in all GDB files
|
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This patch adds the possibility to pass a qualified=True|False parameter
when creating a breakpoint in Python. It is equivalent to using
-qualified in a linespec. The parameter actually accepts any Python
value, and converts it to boolean using Python's standard rules for
that (https://docs.python.org/3/library/stdtypes.html#truth).
Unlike the -source/-line/-function/-label parameters, it is possible to
use -qualified with a "normal" (non-explicit) linespec. Therefore, it
is possible (unlike these other parameters) to use this new parameter
along with the spec parameter.
I updated the py-breakpoint.exp test. To be able to test multiple
locations using a namespace, I had to switch the test case to compile as
C++. If we really wanted to, we could run it as both C and C++, but
omit the C++-specific parts when running it as C.
gdb/ChangeLog:
* location.h (string_to_event_location): Add match_type
parameter.
* location.c (string_to_event_location): Likewise.
* python/py-breakpoint.c (bppy_init): Handle qualified
parameter.
gdb/doc/ChangeLog:
* python.texi (Manipulating breakpoints using Python): Document
qualified parameter to gdb.Breakpoint.
gdb/testsuite/ChangeLog:
* gdb.python/py-breakpoint.c (foo_ns::multiply): New function.
* gdb.python/py-breakpoint.exp: Compile the test case as c++,
call test_bkpt_qualified.
(test_bkpt_qualified): New proc.
|
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breakpoints/22569 involves an internal error generated by the rather
innocent looking command:
(gdb) break -source test.cpp main
.../linespec.c:3302: internal-error: void decode_line_full(...):
Assertion `result.size () == 1 || canonical->pre_expanded' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)
The input string is tokenized into "-source", "test.cpp", and "main"
(input parsing breaks on whitespace). create_breakpoint is then called with
the explicit location (containing only the source file name) and "main" as
the extra_string argument.
No SaLs are created for this underspecified explicit location, and the
"result.size () == 1" evaluates false (as does the pre_expanded condition).
This triggers the assertion.
Normally string_to_explicit_location validates the input string. However,
the presence of the string "main" causes the parser to exit early:
802 else
803 {
804 /* End of the explicit location specification.
805 Stop parsing and return whatever explicit location was
806 parsed. */
807 *argp = start;
808 return location;
809 }
This bypasses the validation that is done a few lines down in this function
which would have emitted the expected error. This patch fixes that.
Additionally, this patch also fixes an inconsistency with error reporting
in this use case:
(gdb) b -source foo
Source filename requires function, label, or line offset.
(gdb) b -source foo main
No source file named foo.
These two commands should have elicited the same error message.
gdb/ChangeLog:
PR breakpoints/22569
* location.c (string_to_explicit_location): When terminating
parsing early, break out of enclosing loop instead of returning.
gdb/testsuite/ChangeLog:
PR breakpoints/22569
* gdb.linespec/ls-errs.exp: Change expected result of "break
-source this file has spaces.c -line 3".
Check that an explicit source file followed by whitespace is
identified as an invalid explicit location.
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This patch teaches GDB about setting breakpoints in all scopes
(namespaces and classes) by default.
Here's a contrived example:
(gdb) b func<tab>
(anonymous namespace)::A::function() Bn::(anonymous namespace)::B::function() function(int, int)
(anonymous namespace)::B::function() Bn::(anonymous namespace)::function() gdb::(anonymous namespace)::A::function()
(anonymous namespace)::B::function() const Bn::(anonymous namespace)::function(int, int) gdb::(anonymous namespace)::function()
(anonymous namespace)::function() Bn::B::func() gdb::(anonymous namespace)::function(int, int)
(anonymous namespace)::function(int, int) Bn::B::function() gdb::A::func()
A::func() Bn::func() gdb::A::function()
A::function() Bn::function() gdb::func()
B::func() Bn::function(int, int) gdb::function()
B::function() Bn::function(long) gdb::function(int, int)
B::function() const func() gdb::function(long)
B::function_const() const function()
(gdb) b function
Breakpoint 1 at 0x4005ce: function. (26 locations)
(gdb) b B::function<tab>
(anonymous namespace)::B::function() B::function() const Bn::B::function()
(anonymous namespace)::B::function() const B::function_const() const
B::function() Bn::(anonymous namespace)::B::function()
(gdb) b B::function
Breakpoint 1 at 0x40072c: B::function. (6 locations)
To get back the original behavior of interpreting the function name as
a fully-qualified name, you can use the new "-qualified" (or "-q")
option/flag (added by this commit). For example:
(gdb) b B::function
(anonymous namespace)::B::function() B::function() const Bn::B::function()
(anonymous namespace)::B::function() const B::function_const() const
B::function() Bn::(anonymous namespace)::B::function()
vs:
(gdb) b -qualified B::function
B::function() B::function() const B::function_const() const
I've chosen "-qualified" / "-q" because "-f" (for "full" or
"fully-qualified") is already taken for "-function".
Note: the "-qualified" option works with both linespecs and explicit
locations. I.e., these are equivalent:
(gdb) b -q func
(gdb) b -q -f func
and so are these:
(gdb) b -q filename.cc:func
(gdb) b -q -s filename.cc -f func
(gdb) b -s filename.cc -q -f func
(gdb) b -s filename.cc -f func -q
To better understand why I consider wild matching the better default,
consider what happens when we get to the point when _all_ of GDB is
wrapped under "namespace gdb {}". I have a patch series that does
that, and when I started debugging that GDB, I immediately became
frustrated. You'd have to write "b gdb::internal_error", "b
gdb::foo", "b gdb::bar", etc. etc., which gets annoying pretty
quickly. OTOH, consider how this makes it very easy to set
breakpoints in classes wrapped in anonymous namespaces. You just
don't think of them, GDB finds the symbols for you automatically.
(At the Cauldron a couple months ago, several people told me that they
run into a similar issue when debugging other C++ projects. One
example was when debugging LLVM, which puts all its code under the
"llvm" namespace.)
Implementation-wise, what the patch does is:
- makes C++ symbol name hashing only consider the last component of
a symbol name. (so that we can look up symbol names by
last-component name only).
- adds a C++ symbol name matcher for symbol_name_match_type::WILD,
which ignores missing leading specifiers / components.
- adjusts a few preexisting testsuite tests to use "-qualified" when
they mean it.
- adds new testsuite tests.
- adds unit tests.
Grows the gdb.linespec/ tests like this:
-# of expected passes 7823
+# of expected passes 8977
gdb/ChangeLog:
2017-11-29 Pedro Alves <palves@redhat.com>
* NEWS: Mention that breakpoints on C++ functions are now set on
on all namespaces/classes by default, and mention "break
-qualified".
* ax-gdb.c (agent_command_1): Adjust to pass a
symbol_name_match_type to new_linespec_location.
* breakpoint.c (parse_breakpoint_sals): Adjust to
get_linespec_location's return type change.
(strace_marker_create_sals_from_location): Adjust to pass a
symbol_name_match_type to new_linespec_location.
(strace_marker_decode_location): Adjust to get_linespec_location's
return type change.
(strace_command): Adjust to pass a symbol_name_match_type to
new_linespec_location.
(LOCATION_HELP_STRING): Add paragraph about wildmatching, and
mention "-qualified".
* c-lang.c (cplus_language_defn): Install cp_search_name_hash.
* completer.c (explicit_location_match_type::MATCH_QUALIFIED): New
enumerator.
(complete_address_and_linespec_locations): New parameter
'match_type'. Pass it down.
(explicit_options): Add "-qualified".
(collect_explicit_location_matches): Pass the requested match type
to the linespec completers. Handle MATCH_QUALIFIED.
(location_completer): Handle "-qualified" combined with linespecs.
* cp-support.c (cp_search_name_hash): New.
(cp_symbol_name_matches_1): Implement wild matching for C++.
(cp_fq_symbol_name_matches): Reimplement.
(cp_get_symbol_name_matcher): Return different matchers depending
on the lookup name's match type.
(selftests::test_cp_symbol_name_matches): Add wild matching tests.
* cp-support.h (cp_search_name_hash): New declaration.
* dwarf2read.c
(selftests::dw2_expand_symtabs_matching::test_symbols): Add
symbols.
(test_dw2_expand_symtabs_matching_symbol): Add wild matching
tests.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Adjust to
pass a symbol_name_match_type to new_linespec_location.
* linespec.c (linespec_parse_basic): Lookup function symbols using
the parser's symbol name match type.
(convert_explicit_location_to_linespec): New
symbol_name_match_type parameter. Pass it down to
find_linespec_symbols.
(convert_explicit_location_to_sals): Pass the location's name
match type to convert_explicit_location_to_linespec.
(parse_linespec): New match_type parameter. Save it in the
parser.
(linespec_parser_new): Default to symbol_name_match_type::WILD.
(linespec_complete_function): New symbol_name_match_type
parameter. Use it.
(complete_linespec_component): Pass down the parser's recorded
name match type.
(linespec_complete_label): New symbol_name_match_type parameter.
Use it.
(linespec_complete): New symbol_name_match_type parameter. Save
it in the parser and pass it down. Adjust to
get_linespec_location's prototype change.
(find_function_symbols, find_linespec_symbols): New
symbol_name_match_type parameter. Pass it down instead of
assuming symbol_name_match_type::WILD.
* linespec.h (linespec_complete, linespec_complete_function)
(linespec_complete_label): New symbol_name_match_type parameter.
* location.c (event_location::linespec_location): Now a struct
linespec_location.
(EL_LINESPEC): Adjust.
(initialize_explicit_location): Default to
symbol_name_match_type::WILD.
(new_linespec_location): New symbol_name_match_type parameter.
Record it in the location.
(get_linespec_location): Now returns a struct linespec_location.
(new_explicit_location): Also copy func_name_match_type.
(explicit_to_string_internal)
(string_to_explicit_location): Handle "-qualified".
(copy_event_location): Adjust to LINESPEC_LOCATION type change.
Copy symbol_name_match_type fields.
(event_location_deleter::operator()): Adjust to LINESPEC_LOCATION
type change.
(event_location_to_string): Adjust to LINESPEC_LOCATION type
change. Handle "-qualfied".
(string_to_explicit_location): Handle "-qualified".
(string_to_event_location_basic): New symbol_name_match_type
parameter. Pass it down.
(string_to_event_location): Handle "-qualified".
* location.h (struct linespec_location): New.
(explicit_location::func_name_match_type): New field.
(new_linespec_location): Now returns a const linespec_location *.
(string_to_event_location_basic): New symbol_name_match_type
parameter.
(explicit_completion_info::saw_explicit_location_option): New
field.
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Adjust to pass a
symbol_name_match_type to new_linespec_location.
* python/py-breakpoint.c (bppy_init): Likewise.
* python/python.c (gdbpy_decode_line): Likewise.
gdb/testsuite/ChangeLog:
2017-11-29 Pedro Alves <palves@redhat.com>
* gdb.base/langs.exp: Use -qualified.
* gdb.cp/meth-typedefs.exp: Use -qualified, and add tests without
it.
* gdb.cp/namespace.exp: Use -qualified.
* gdb.linespec/cpcompletion.exp (overload-2, fqn, fqn-2)
(overload-3, template-overload, template-ret-type, const-overload)
(const-overload-quoted, anon-ns, ambiguous-prefix): New
procedures.
(test_driver): Call them.
* gdb.cp/save-bp-qualified.cc: New.
* gdb.cp/save-bp-qualified.exp: New.
* gdb.linespec/explicit.exp: Test -qualified.
* lib/completion-support.exp (completion::explicit_opts_list): Add
"-qualified".
* lib/gdb.exp (gdb_breakpoint): Handle "qualified".
gdb/doc/ChangeLog:
2017-11-29 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Linespec Locations): Document how "function" is
interpreted in C++ and Ada. Document "-qualified".
(Explicit Locations): Document how "-function" is interpreted in
C++ and Ada. Document "-qualified".
|
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This patch converts the generic probe interface (gdb/probe.[ch]) to
C++, and also performs some cleanups that were on my TODO list for a
while.
The main changes were the conversion of 'struct probe' to 'class
probe', and 'struct probe_ops' to 'class static_probe_ops'. The
former now contains all the "dynamic", generic methods that act on a
probe + the generic data related to it; the latter encapsulates a
bunch of "static" methods that relate to the probe type, but not to a
specific probe itself.
I've had to do a few renamings (e.g., on 'struct bound_probe' the
field is called 'probe *prob' now, instead of 'struct probe *probe')
because GCC was complaining about naming the field using the same name
as the class. Nothing major, though. Generally speaking, the logic
behind and the design behind the code are the same.
Even though I'm sending a series of patches, they need to be tested
and committed as a single unit, because of inter-dependencies. But it
should be easier to review in separate logical units.
I've regtested this patch on BuildBot, no regressions found.
gdb/ChangeLog:
2017-11-22 Sergio Durigan Junior <sergiodj@redhat.com>
* break-catch-throw.c (fetch_probe_arguments): Use
'probe.prob' instead of 'probe.probe'.
* breakpoint.c (create_longjmp_master_breakpoint): Call
'can_evaluate_arguments' and 'get_relocated_address' methods
from probe.
(create_exception_master_breakpoint): Likewise.
(add_location_to_breakpoint): Use 'sal->prob' instead of
'sal->probe'.
(bkpt_probe_insert_location): Call 'set_semaphore' method from
probe.
(bkpt_probe_remove_location): Likewise, for 'clear_semaphore'.
* elfread.c (elf_get_probes): Use 'static_probe_ops' instead
of 'probe_ops'.
(probe_key_free): Call 'delete' on probe.
(check_exception_resume): Use 'probe.prob' instead of
'probe.probe'.
* location.c (string_to_event_location_basic): Call
'probe_linespec_to_static_ops'.
* probe.c (class any_static_probe_ops): New class.
(any_static_probe_ops any_static_probe_ops): New variable.
(parse_probes_in_pspace): Receive 'static_probe_ops' as
argument. Adjust code to reflect change.
(parse_probes): Use 'static_probe_ops' instead of
'probe_ops'. Adjust code to reflect change.
(find_probes_in_objfile): Call methods to get name and
provider from probe.
(find_probe_by_pc): Use 'result.prob' instead of
'result.probe'. Call 'get_relocated_address' method from
probe.
(collect_probes): Adjust comment and argument list to receive
'static_probe_ops' instead of 'probe_ops'. Adjust code to
reflect change. Call necessary methods from probe.
(compare_probes): Call methods to get name and provider from
probes.
(gen_ui_out_table_header_info): Receive 'static_probe_ops'
instead of 'probe_ops'. Use 'std::vector' instead of VEC,
adjust code accordingly.
(print_ui_out_not_applicables): Likewise.
(info_probes_for_ops): Rename to...
(info_probes_for_spops): ...this. Receive 'static_probe_ops'
as argument instead of 'probe_ops'. Adjust code. Call
necessary methods from probe.
(info_probes_command): Use 'info_probes_for_spops'.
(enable_probes_command): Pass correct argument to
'collect_probes'. Call methods from probe.
(disable_probes_command): Likewise.
(get_probe_address): Move to 'any_static_probe_ops::get_address'.
(get_probe_argument_count): Move to
'any_static_probe_ops::get_argument_count'.
(can_evaluate_probe_arguments): Move to
'any_static_probe_ops::can_evaluate_arguments'.
(evaluate_probe_argument): Move to
'any_static_probe_ops::evaluate_argument'.
(probe_safe_evaluate_at_pc): Use 'probe.prob' instead of
'probe.probe'.
(probe_linespec_to_ops): Rename to...
(probe_linespec_to_static_ops): ...this. Adjust code.
(probe_any_is_linespec): Rename to...
(any_static_probe_ops::is_linespec): ...this.
(probe_any_get_probes): Rename to...
(any_static_probe_ops::get_probes): ...this.
(any_static_probe_ops::type_name): New method.
(any_static_probe_ops::gen_info_probes_table_header): New
method.
(compute_probe_arg): Use 'pc_probe.prob' instead of
'pc_probe.probe'. Call methods from probe.
(compile_probe_arg): Likewise.
(std::vector<const probe_ops *> all_probe_ops): Delete.
(std::vector<const static_probe_ops *> all_static_probe_ops):
New variable.
(_initialize_probe): Use 'all_static_probe_ops' instead of
'all_probe_ops'.
* probe.h (struct info_probe_column) <field_name>: Delete
extraneous newline
(info_probe_column_s): Delete type and VEC.
(struct probe_ops): Delete. Replace with...
(class static_probe_ops): ...this and...
(clas probe): ...this.
(struct bound_probe) <bound_probe>: Delete extraneous
newline. Adjust constructor to receive 'probe' instead of
'struct probe'.
<probe>: Rename to...
<prob>: ...this. Delete extraneous newline.
<objfile>: Delete extraneous newline.
(register_probe_ops): Delete unused prototype.
(info_probes_for_ops): Rename to...
(info_probes_for_spops): ...this. Adjust comment.
(get_probe_address): Move to 'probe::get_address'.
(get_probe_argument_count): Move to
'probe::get_argument_count'.
(can_evaluate_probe_arguments): Move to
'probe::can_evaluate_arguments'.
(evaluate_probe_argument): Move to 'probe::evaluate_argument'.
* solib-svr4.c (struct svr4_info): Adjust comment.
(struct probe_and_action) <probe>: Rename to...
<prob>: ...this.
(register_solib_event_probe): Receive 'probe' instead of
'struct probe' as argument. Use 'prob' instead of 'probe'
when applicable.
(solib_event_probe_action): Call 'get_argument_count' method
from probe. Adjust comment.
(svr4_handle_solib_event): Adjust comment. Call
'evaluate_argument' method from probe.
(svr4_create_probe_breakpoints): Call 'get_relocated_address'
from probe.
(svr4_create_solib_event_breakpoints): Use 'probe' instead of
'struct probe'. Call 'can_evaluate_arguments' from probe.
* symfile.h: Forward declare 'class probe' instead of 'struct
probe'.
* symtab.h: Likewise.
(struct symtab_and_line) <probe>: Rename to...
<prob>: ...this.
* tracepoint.c (start_tracing): Use 'prob' when applicable.
Call probe methods.
(stop_tracing): Likewise.
|
|
This changes a few linespec functions to work on "const char *" and
then fixes up all the callers. This allows further constification
elsewhere.
gdb/ChangeLog
2017-09-27 Tom Tromey <tom@tromey.com>
* tracepoint.c (info_scope_command): Constify.
* python/python.c (gdbpy_decode_line): Constify.
* python/py-breakpoint.c (bppy_init): Constify.
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify.
* location.h: (new_linespec_location)
(string_to_event_location_basic, string_to_event_location):
Constify.
* location.c (new_linespec_location)
(string_to_event_location_basic, string_to_event_location):
Constify.
* linespec.h (decode_line_with_current_source)
(decode_line_with_last_displayed, linespec_lex_to_end): Constify.
* linespec.c (linespec_lex_to_end)
(decode_line_with_current_source)
(decode_line_with_last_displayed): Constify.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x):
Constify.
* cli/cli-cmds.c (edit_command, list_command): Constify.
* breakpoint.h (until_break_command, watch_command_wrapper)
(awatch_command_wrapper, rwatch_command_wrapper)
(init_ada_exception_breakpoint): Constify.
* breakpoint.c (break_command_1, dprintf_command)
(break_range_command, watch_command_wrapper)
(rwatch_command_wrapper, awatch_command_wrapper)
(until_break_command, init_ada_exception_breakpoint)
(strace_marker_create_sals_from_location, trace_command)
(ftrace_command, strace_command, struct tracepoint): Constify.
* ax-gdb.c (agent_command_1): Constify.
* ada-lang.c (ada_exception_sal): Constify.
|
|
This renames a few functions -- skip_spaces_const,
skip_to_space_const, get_number_const, extract_arg_const -- to drop
the "_const" suffix and instead rely on overloading.
This makes future const fixes simpler by reducing the number of lines
that must be changed. I think it is also not any less clear, as all
these functions have the same interface as their non-const versions by
design. Furthermore there's an example of using an overload in-tree
already, namely check_for_argument.
This patch was largely created using some perl one-liners; then a few
fixes were applied by hand.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* common/common-utils.h (skip_to_space): Remove macro, redeclare
as function.
(skip_to_space): Rename from skip_to_space_const.
* common/common-utils.c (skip_to_space): New function.
(skip_to_space): Rename from skip_to_space_const.
* cli/cli-utils.h (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
* cli/cli-utils.c (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
(number_or_range_parser::get_number): Use ::get_number.
* aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c,
break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c,
cli/cli-script.c, cli/cli-setshow.c, compile/compile.c,
completer.c, demangle.c, disasm.c, findcmd.c, linespec.c,
linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c,
minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c,
python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c,
stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
|
|
One of the most annoying (to me) things about GDB's completion is when
you have overloads in your program, and you want to set a breakpoint
in one of them:
void function(int); // set breakpoint here.
void function(long);
(gdb) b -f func[TAB]
(gdb) b -f function( # ok, gdb completed as much as possible.
(gdb) b -f function([TAB] # show me the overloads, please.
<_all_ symbols in the program are shown...>
E.g., when debugging GDB, that'd be:
(gdb) b -f function([TAB]
(anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry
asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt
asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range
bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt
bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc
bt_ctf_get_uint64 pwrite scm_putc@plt
bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x
bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt
bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x
<snip...>
Now that's a load of completely useless completions.
The reason GDB offers those is that the completer relies on readline
figuring out the completion word point in the input line based on the
language's word break characters, which include "(". So readline
tells the completer to complete on "", the string that is after '('.
Likewise, if you type "function(i[TAB]" to try to complete to "int",
you're out of luck. GDB shows you all the symbols in the program that
start with "i"... This makes sense for the expression completer, as
what you'd want to type is e.g., a global variable, say:
(gdb) print function(i[TAB]
but, it makes no sense when specifying a function name for a
breakpoint location.
To get around that limitation, users need to quote the function name,
like:
(gdb) b -f 'function([TAB]
function(int) function(long)
(gdb) b 'function(i[TAB]
(gdb) b 'function(int)' # now completes correctly!
Note that the quoting is only necessary for completion. Creating the
breakpoint does not require the quoting:
(gdb) b -f function(int) [RET]
Breakpoint 1 at ....
This patch removes this limitation.
(
Actually, it's a necessary patch, though not sufficient. That'll
start working correctly by the end of the series. With this patch, if try it,
you'll see:
(gdb) b -f function(i[TAB]
(gdb) b -f function
i.e., gdb strips everything after the "(". That's caused by some code
in symtab.c that'll be eliminated further down the series. These
patches are all unfortunately interrelated, which is also the reason
new tests only appear much later in the series.
But let's ignore that reality for the remainder of the description.
)
So... this patch gets rid of the need for quoting.
It does that by adding a way for a completer to control the exact
completion word point that readline should start the completion
request for, instead of letting readline try to figure it out using
the current language's word break chars array, and often failing.
In the case above, we want the completer to figure out that it's
completing a function name that starts with "function(i". It now
does.
It took me a while to figure out a way to ask readline to "use this
exact word point", and for a while I feared that it'd be impossible
with current readline (and having to rely on master readline for core
functionality is something I'd like to avoid very much). Eventually,
after several different attempts, I came up with what is described in
the comment above gdb_custom_word_point_brkchars in the patch.
With this patch, the handle_brkchars phase of the explicit location
completer advances the expected word point as it parses the input line
left to right, until it figures out exactly what we're completing,
instead of expecting readline to break the string using the word break
characters, and then having the completer heuristically fix up a bad
decision by parsing the input string backwards. This allows correctly
knowning that we're completing a symbol name after -function, complete
functions without quoting, etc.
Later, we'll make use of this same mechanims to implement a proper
linespec completer that avoids need for quoting too.
gdb/ChangeLog:
2017-07-17 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_collect_symbol_completion_matches): Add
complete_symbol_mode parameter.
* cli/cli-cmds.c (complete_command): Get the completion result out
of the handle_brkchars tracker if used a custom word point.
* completer.c: Include "linespec.h".
(enum explicit_location_match_type) <MATCH_LINE>: New enumerator.
(advance_to_expression_complete_word_point): New.
(completion_tracker::completes_to_completion_word): New.
(complete_files_symbols): Pass down
complete_symbol_mode::EXPRESSION.
(explicit_options, probe_options): New.
(collect_explicit_location_matches): Complete on the
explictit_loc->foo instead of word. Use
linespec_complete_function. Handle MATCH_LINE. Handle offering
keyword and options completions.
(backup_text_ptr): Delete.
(skip_keyword): New.
(complete_explicit_location): Remove 'word' parameter. Add
language, quoted_arg_start and quoted_arg_end parameters.
Rewrite, parsing left to right.
(location_completer): Rewrite.
(location_completer_handle_brkchars): New function.
(symbol_completer): Pass down complete_symbol_mode::EXPRESSION.
(enum complete_line_internal_reason): Adjust comments.
(completion_tracker::discard_completions): New.
(completer_handle_brkchars_func_for_completer): Handle
location_completer.
(gdb_custom_word_point_brkchars)
(gdb_org_rl_basic_quote_characters): New.
(gdb_completion_word_break_characters_throw)
(completion_find_completion_word): Handle trackers that use a
custom word point.
(completion_tracker::advance_custom_word_point_by): New.
(completion_tracker::build_completion_result): Don't rely on
readline appending the quote char.
(gdb_rl_attempted_completion_function_throw): Handle trackers that
use a custom word point.
(gdb_rl_attempted_completion_function): Restore
rl_basic_quote_characters.
* completer.h (class completion_tracker): Extend intro comment.
(completion_tracker::set_quote_char)
(completion_tracker::quote_char)
(completion_tracker::set_use_custom_word_point)
(completion_tracker::use_custom_word_point)
(completion_tracker::custom_word_point)
(completion_tracker::set_custom_word_point)
(completion_tracker::advance_custom_word_point_by)
(completion_tracker::completes_to_completion_word)
(completion_tracker::discard_completions): New methods.
(completion_tracker::m_quote_char)
(completion_tracker::m_use_custom_word_point)
(completion_tracker::m_custom_word_point): New fields.
(advance_to_expression_complete_word_point): Declare.
* f-lang.c (f_collect_symbol_completion_matches): Add
complete_symbol_mode parameter.
* language.h (struct language_defn)
<la_collect_symbol_completion_matches>: Add complete_symbol_mode
parameter.
* linespec.c (linespec_keywords): Add NULL terminator. Make extern.
(linespec_complete_function): New function.
(linespec_lexer_lex_keyword): Adjust.
* linespec.h (linespec_keywords, linespec_complete_function): New
declarations.
* location.c (find_end_quote): New function.
(explicit_location_lex_one): Add explicit_completion_info
parameter. Save quoting info. Don't throw if being called for
completion. Don't handle Ada operators here.
(is_cp_operator, skip_op_false_positives, first_of)
(explicit_location_lex_one_function): New function.
(string_to_explicit_location): Replace 'dont_throw' parameter with
an explicit_completion_info pointer parameter. Handle it. Don't
use explicit_location_lex_one to lex function names. Use
explicit_location_lex_one_function instead.
* location.h (struct explicit_completion_info): New.
(string_to_explicit_location): Replace 'dont_throw' parameter with
an explicit_completion_info pointer parameter.
* symtab.c (default_collect_symbol_completion_matches_break_on):
Add complete_symbol_mode parameter. Handle LINESPEC mode.
(default_collect_symbol_completion_matches)
(collect_symbol_completion_matches): Add complete_symbol_mode
parameter.
(collect_symbol_completion_matches_type): Pass down
complete_symbol_mode::EXPRESSION.
(collect_file_symbol_completion_matches): Add complete_symbol_mode
parameter. Handle LINESPEC mode.
* symtab.h (complete_symbol_mode): New.
(default_collect_symbol_completion_matches_break_on)
(default_collect_symbol_completion_matches)
(collect_symbol_completion_matches)
(collect_file_symbol_completion_matches): Add complete_symbol_mode
parameter.
gdb/testsuite/ChangeLog:
2017-07-17 Pedro Alves <palves@redhat.com>
* gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
|
|
Move LENGTH_OF_OPERATOR from cp-support.c to cp-support.h so we can
use it elsewhere. Since there's already
CP_ANONYMOUS_NAMESPACE_STR/CP_ANONYMOUS_NAMESPACE_LEN there, follow
the same naming pattern for the new symbols.
gdb/ChangeLog:
2017-07-17 Pedro Alves <palves@redhat.com>
* c-exp.y (operator_stoken): Use CP_OPERATOR_LEN and
CP_OPERATOR_STR.
* c-typeprint.c (is_type_conversion_operator): Use
CP_OPERATOR_STR.
* cp-support.c (LENGTH_OF_OPERATOR): Delete.
(cp_find_first_component_aux): Use CP_OPERATOR_STR and
CP_OPERATOR_LEN.
* cp-support.h (CP_OPERATOR_STR, CP_OPERATOR_LEN): New.
* gnu-v2-abi.c (gnuv2_is_operator_name): Use CP_OPERATOR_STR.
* gnu-v3-abi.c (gnuv3_is_operator_name): Use CP_OPERATOR_STR.
* linespec.c (linespec_lexer_lex_string): Use CP_OPERATOR_LEN and
CP_OPERATOR_STR.
* location.c: Include "cp-support.h".
(explicit_location_lex_one): Use CP_OPERATOR_LEN and
CP_OPERATOR_STR.
* symtab.c (operator_chars): Use CP_OPERATOR_STR and
CP_OPERATOR_LEN.
|
|
This is a follow-up to another patch. It changes
linespec_result::location to be an event_location_up.
gdb/ChangeLog
2017-04-12 Tom Tromey <tom@tromey.com>
* probe.c (parse_probes): Update.
* location.h (delete_event_location): Don't declare.
(event_location_deleter::operator()): Update.
* location.c (event_location_deleter::operator()): Rename from
delete_event_location.
* linespec.h (linespec_result) <location>: Change type to
event_location_up.
* linespec.c (canonicalize_linespec, event_location_to_sals)
(decode_objc): Update.
(linespec_result): Don't call delete_event_location.
* breakpoint.c (create_breakpoints_sal)
(bkpt_probe_create_sals_from_location)
(strace_marker_create_sals_from_location): Update.
|
|
This removes some more cleanups from location.c by using
unique_xmalloc_ptr.
gdb/ChangeLog
2017-04-12 Tom Tromey <tom@tromey.com>
* location.c (explicit_location_lex_one): Return a
unique_xmalloc_ptr.
(string_to_explicit_location): Update. Remove cleanups.
|
|
This removes make_cleanup_delete_event_location and instead changes
the various location functions to return an event_location_up, a new
unique_ptr typedef.
This is largely straightforward, but be sure to examine the
init_breakpoint_sal change. I believe the code I deleted there is
dead, because "location != NULL" can never be true in that branch; but
you should double-check.
gdb/ChangeLog
2017-04-12 Tom Tromey <tom@tromey.com>
* tracepoint.c (scope_info): Update.
* spu-tdep.c (spu_catch_start): Update.
* python/python.c (gdbpy_decode_line): Update.
* python/py-finishbreakpoint.c (bpfinishpy_init): Update.
* python/py-breakpoint.c (bppy_init): Update.
* probe.c (parse_probes): Update.
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update.
* location.h (event_location_deleter): New struct.
(event_location_up): New typedef.
(new_linespec_location, new_address_location, new_probe_location)
(new_explicit_location, copy_event_location)
(string_to_event_location, string_to_event_location_basic)
(string_to_explicit_location): Update return type.
(make_cleanup_delete_event_location): Remove.
* location.c (new_linespec_location, new_address_location)
(new_probe_location, new_explicit_location, copy_event_location):
Return event_location_up.
(delete_event_location_cleanup)
(make_cleanup_delete_event_location): Remove.
(string_to_explicit_location, string_to_event_location_basic)
(string_to_event_location): Return event_location_up.
* linespec.c (canonicalize_linespec, event_location_to_sals)
(decode_line_with_current_source)
(decode_line_with_last_displayed, decode_objc): Update.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update.
* completer.c (location_completer): Update.
* cli/cli-cmds.c (edit_command, list_command): Update.
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint)
(create_thread_event_breakpoint): Update.
(init_breakpoint_sal): Update. Remove some dead code.
(create_breakpoint_sal): Change type of "location". Update.
(create_breakpoints_sal, create_breakpoint, break_command_1)
(dprintf_command, break_range_command, until_break_command)
(init_ada_exception_breakpoint)
(strace_marker_create_sals_from_location)
(update_static_tracepoint, trace_command, ftrace_command)
(strace_command, create_tracepoint_from_upload): Update.
* break-catch-throw.c (re_set_exception_catchpoint): Update.
* ax-gdb.c (agent_command_1): Update.
|
|
This patch starts from the desire to eliminate
make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file &
friends a real C++ class hierarchy, and switches temporary
ui_file-like objects to stack-based allocation.
- mem_fileopen -> string_file
mem_fileopen is replaced with a new string_file class that is treated
as a value class created on the stack. This alone eliminates most
make_cleanup_ui_file_delete calls, and, simplifies code a whole lot
(diffstat shows around 1k loc dropped.)
string_file's internal buffer is a std::string, thus the "string" in
the name. This simplifies the implementation much, compared to
mem_fileopen, which managed growing its internal buffer manually.
- ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone
The new string_file class has a string() method that provides direct
writable access to the internal std::string buffer. This replaced
ui_file_as_string, which forced a copy of the same data the stream had
inside. With direct access via a writable reference, we can instead
move the string out of the string_stream, avoiding deep string
copying.
Related, ui_file_xstrdup calls are replaced with xstrdup'ping the
stream's string, and ui_file_obsavestring is replaced by
obstack_copy0.
With all those out of the way, getting rid of the weird ui_file_put
mechanism was possible.
- New ui_file::printf, ui_file::puts, etc. methods
These simplify / clarify client code. I considered splitting
client-code changes, like these, e.g.:
- stb = mem_fileopen ();
- fprintf_unfiltered (stb, "%s%s%s",
- _("The valid values are:\n"),
- regdesc,
- _("The default is \"std\"."));
+ string_file stb;
+ stb.printf ("%s%s%s",
+ _("The valid values are:\n"),
+ regdesc,
+ _("The default is \"std\"."));
In two steps, with the first step leaving fprintf_unfiltered (etc.)
calls in place, and only afterwards do a pass to change all those to
call stb.printf etc.. I didn't do that split, because (when I tried),
it turned out to be pointless make-work: the first pass would have to
touch the fprintf_unfiltered line anyway, to replace "stb" with
"&stb".
- gdb_fopen replaced with stack-based objects
This avoids the need for cleanups or unique_ptr's. I.e., this:
struct ui_file *file = gdb_fopen (filename, "w");
if (filename == NULL)
perror_with_name (filename);
cleanups = make_cleanup_ui_file_delete (file);
// use file.
do_cleanups (cleanups);
is replaced with this:
stdio_file file;
if (!file.open (filename, "w"))
perror_with_name (filename);
// use file.
- odd contorsions in null_file_write / null_file_fputs around when to
call to_fputs / to_write eliminated.
- Global null_stream object
A few places that were allocating a ui_file in order to print to
"nowhere" are adjusted to instead refer to a new 'null_stream' global
stream.
- TUI's tui_sfileopen eliminated. TUI's ui_file much simplified
The TUI's ui_file was serving a dual purpose. It supported being used
as string buffer, and supported being backed by a stdio FILE. The
string buffer part is gone, replaced by using of string_file. The
'FILE *' support is now much simplified, by making the TUI's ui_file
inherit from stdio_file.
gdb/ChangeLog:
2017-02-02 Pedro Alves <palves@redhat.com>
* ada-lang.c (type_as_string): Use string_file.
* ada-valprint.c (ada_print_floating): Use string_file.
* ada-varobj.c (ada_varobj_scalar_image)
(ada_varobj_get_value_image): Use string_file.
* aix-thread.c (aix_thread_extra_thread_info): Use string_file.
* arm-tdep.c (_initialize_arm_tdep): Use string_printf.
* breakpoint.c (update_inserted_breakpoint_locations)
(insert_breakpoint_locations, reattach_breakpoints)
(print_breakpoint_location, print_one_detail_ranged_breakpoint)
(print_it_watchpoint): Use string_file.
(save_breakpoints): Use stdio_file.
* c-exp.y (oper): Use string_file.
* cli/cli-logging.c (set_logging_redirect): Use ui_file_up and
tee_file.
(pop_output_files): Use delete.
(handle_redirections): Use stdio_file and tee_file.
* cli/cli-setshow.c (do_show_command): Use string_file.
* compile/compile-c-support.c (c_compute_program): Use
string_file.
* compile/compile-c-symbols.c (generate_vla_size): Take a
'string_file &' instead of a 'ui_file *'.
(generate_c_for_for_one_variable): Take a 'string_file &' instead
of a 'ui_file *'. Use string_file.
(generate_c_for_variable_locations): Take a 'string_file &'
instead of a 'ui_file *'.
* compile/compile-internal.h (generate_c_for_for_one_variable):
Take a 'string_file &' instead of a 'ui_file *'.
* compile/compile-loc2c.c (push, pushf, unary, binary)
(print_label, pushf_register_address, pushf_register)
(do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a
'ui_file *'. Adjust.
* compile/compile.c (compile_to_object): Use string_file.
* compile/compile.h (compile_dwarf_expr_to_c)
(compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a
'ui_file *'.
* cp-support.c (inspect_type): Use string_file and obstack_copy0.
(replace_typedefs_qualified_name): Use string_file and
obstack_copy0.
* disasm.c (gdb_pretty_print_insn): Use string_file.
(gdb_disassembly): Adjust reference the null_stream global.
(do_ui_file_delete): Delete.
(gdb_insn_length): Use null_stream.
* dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file.
* dwarf2loc.c (dwarf2_compile_property_to_c)
(locexpr_generate_c_location, loclist_generate_c_location): Take a
'string_file &' instead of a 'ui_file *'.
* dwarf2loc.h (dwarf2_compile_property_to_c): Likewise.
* dwarf2read.c (do_ui_file_peek_last): Delete.
(dwarf2_compute_name): Use string_file.
* event-top.c (gdb_setup_readline): Use stdio_file.
* gdbarch.sh (verify_gdbarch): Use string_file.
* gdbtypes.c (safe_parse_type): Use null_stream.
* guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use
string_file.
* guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a
'string_file *' instead of a 'ui_file *'.
(gdbscm_arch_disassemble): Use string_file.
* guile/scm-frame.c (frscm_print_frame_smob): Use string_file.
* guile/scm-ports.c (class ioscm_file_port): Now a class that
inherits from ui_file.
(ioscm_file_port_delete, ioscm_file_port_rewind)
(ioscm_file_port_put): Delete.
(ioscm_file_port_write): Rename to ...
(ioscm_file_port::write): ... this. Remove file_port_magic
checks.
(ioscm_file_port_new): Delete.
(ioscm_with_output_to_port_worker): Use ioscm_file_port and
ui_file_up.
* guile/scm-type.c (tyscm_type_name): Use string_file.
* guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print):
Use string_file.
* infcmd.c (print_return_value_1): Use string_file.
* infrun.c (print_target_wait_results): Use string_file.
* language.c (add_language): Use string_file.
* location.c (explicit_to_string_internal): Use string_file.
* main.c (captured_main_1): Use null_file.
* maint.c (maintenance_print_architecture): Use stdio_file.
* mi/mi-cmd-stack.c (list_arg_or_local): Use string_file.
* mi/mi-common.h (struct mi_interp) <out, err, log, targ,
event_channel>: Change type to mi_console_file pointer.
* mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush)
(mi_console_file_delete): Delete.
(struct mi_console_file): Delete.
(mi_console_file_magic): Delete.
(mi_console_file_new): Delete.
(mi_console_file::mi_console_file): New.
(mi_console_file_delete): Delete.
(mi_console_file_fputs): Delete.
(mi_console_file::write): New.
(mi_console_raw_packet): Delete.
(mi_console_file::flush): New.
(mi_console_file_flush): Delete.
(mi_console_set_raw): Rename to ...
(mi_console_file::set_raw): ... this.
* mi/mi-console.h (class mi_console_file): New class.
(mi_console_file_new, mi_console_set_raw): Delete.
* mi/mi-interp.c (mi_interpreter_init): Use mi_console_file.
(mi_set_logging): Use delete and tee_file. Adjust.
* mi/mi-main.c (output_register): Use string_file.
(mi_cmd_data_evaluate_expression): Use string_file.
(mi_cmd_data_read_memory): Use string_file.
(mi_cmd_execute, print_variable_or_computed): Use string_file.
* mi/mi-out.c (mi_ui_out::main_stream): New.
(mi_ui_out::rewind): Use main_stream and
string_file.
(mi_ui_out::put): Use main_stream and string_file.
(mi_ui_out::mi_ui_out): Remove 'stream' parameter.
Allocate a 'string_file' instead.
(mi_out_new): Don't allocate a mem_fileopen stream here.
* mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter.
(mi_ui_out::main_stream): Declare method.
* printcmd.c (eval_command): Use string_file.
* psymtab.c (maintenance_print_psymbols): Use stdio_file.
* python/py-arch.c (archpy_disassemble): Use string_file.
* python/py-breakpoint.c (bppy_get_commands): Use string_file.
* python/py-frame.c (frapy_str): Use string_file.
* python/py-framefilter.c (py_print_type, py_print_single_arg):
Use string_file.
* python/py-type.c (typy_str): Use string_file.
* python/py-unwind.c (unwind_infopy_str): Use string_file.
* python/py-value.c (valpy_str): Use string_file.
* record-btrace.c (btrace_insn_history): Use string_file.
* regcache.c (regcache_print): Use stdio_file.
* reggroups.c (maintenance_print_reggroups): Use stdio_file.
* remote.c (escape_buffer): Use string_file.
* rust-lang.c (rust_get_disr_info): Use string_file.
* serial.c (serial_open_ops_1): Use stdio_file.
(do_serial_close): Use delete.
* stack.c (print_frame_arg): Use string_file.
(print_frame_args): Remove local mem_fileopen stream, not used.
(print_frame): Use string_file.
* symmisc.c (maintenance_print_symbols): Use stdio_file.
* symtab.h (struct symbol_computed_ops) <generate_c_location>:
Take a 'string_file *' instead of a 'ui_file *'.
* top.c (new_ui): Use stdio_file and stderr_file.
(free_ui): Use delete.
(execute_command_to_string): Use string_file.
(quit_confirm): Use string_file.
* tracepoint.c (collection_list::append_exp): Use string_file.
* tui/tui-disasm.c (tui_disassemble): Use string_file.
* tui/tui-file.c: Don't include "ui-file.h".
(enum streamtype, struct tui_stream): Delete.
(tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen)
(tui_file_isatty, tui_file_rewind, tui_file_put): Delete.
(tui_file::tui_file): New method.
(tui_file_fputs): Delete.
(tui_file_get_strbuf): Delete.
(tui_file::puts): New method.
(tui_file_adjust_strbuf): Delete.
(tui_file_flush): Delete.
(tui_file::flush): New method.
* tui/tui-file.h: Tweak intro comment.
Include ui-file.h.
(tui_fileopen, tui_sfileopen, tui_file_get_strbuf)
(tui_file_adjust_strbuf): Delete declarations.
(class tui_file): New class.
* tui/tui-io.c (tui_initialize_io): Use tui_file.
* tui/tui-regs.c (tui_restore_gdbout): Use delete.
(tui_register_format): Use string_stream.
* tui/tui-stack.c (tui_make_status_line): Use string_file.
(tui_get_function_from_frame): Use string_file.
* typeprint.c (type_to_string): Use string_file.
* ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete.
(null_stream): New global.
(ui_file_delete): Delete.
(ui_file::ui_file): New.
(null_file_isatty): Delete.
(ui_file::~ui_file): New.
(null_file_rewind): Delete.
(ui_file::printf): New.
(null_file_put): Delete.
(null_file_flush): Delete.
(ui_file::putstr): New.
(null_file_write): Delete.
(ui_file::putstrn): New.
(null_file_read): Delete.
(ui_file::putc): New.
(null_file_fputs): Delete.
(null_file_write_async_safe): Delete.
(ui_file::vprintf): New.
(null_file_delete): Delete.
(null_file::write): New.
(null_file_fseek): Delete.
(null_file::puts): New.
(ui_file_data): Delete.
(null_file::write_async_safe): New.
(gdb_flush, ui_file_isatty): Adjust.
(ui_file_put, ui_file_rewind): Delete.
(ui_file_write): Adjust.
(ui_file_write_for_put): Delete.
(ui_file_write_async_safe, ui_file_read): Adjust.
(ui_file_fseek): Delete.
(fputs_unfiltered): Adjust.
(set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind)
(set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe)
(set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek)
(set_ui_file_data): Delete.
(string_file::~string_file, string_file::write)
(struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup)
(do_ui_file_as_string, ui_file_as_string): Delete.
(do_ui_file_obsavestring, ui_file_obsavestring): Delete.
(struct mem_file): Delete.
(mem_file_new): Delete.
(stdio_file::stdio_file): New.
(mem_file_delete): Delete.
(stdio_file::stdio_file): New.
(mem_fileopen): Delete.
(stdio_file::~stdio_file): New.
(mem_file_rewind): Delete.
(stdio_file::set_stream): New.
(mem_file_put): Delete.
(stdio_file::open): New.
(mem_file_write): Delete.
(stdio_file_magic, struct stdio_file): Delete.
(stdio_file_new, stdio_file_delete, stdio_file_flush): Delete.
(stdio_file::flush): New.
(stdio_file_read): Rename to ...
(stdio_file::read): ... this. Adjust.
(stdio_file_write): Rename to ...
(stdio_file::write): ... this. Adjust.
(stdio_file_write_async_safe): Rename to ...
(stdio_file::write_async_safe) ... this. Adjust.
(stdio_file_fputs): Rename to ...
(stdio_file::puts) ... this. Adjust.
(stdio_file_isatty): Delete.
(stdio_file_fseek): Delete.
(stdio_file::isatty): New.
(stderr_file_write): Rename to ...
(stderr_file::write) ... this. Adjust.
(stderr_file_fputs): Rename to ...
(stderr_file::puts) ... this. Adjust.
(stderr_fileopen, stdio_fileopen, gdb_fopen): Delete.
(stderr_file::stderr_file): New.
(tee_file_magic): Delete.
(struct tee_file): Delete.
(tee_file::tee_file): New.
(tee_file_new): Delete.
(tee_file::~tee_file): New.
(tee_file_delete): Delete.
(tee_file_flush): Rename to ...
(tee_file::flush): ... this. Adjust.
(tee_file_write): Rename to ...
(tee_file::write): ... this. Adjust.
(tee_file::write_async_safe): New.
(tee_file_fputs): Rename to ...
(tee_file::puts): ... this. Adjust.
(tee_file_isatty): Rename to ...
(tee_file::isatty): ... this. Adjust.
* ui-file.h (struct obstack, struct ui_file): Don't
forward-declare.
(ui_file_new, ui_file_flush_ftype, set_ui_file_flush)
(ui_file_write_ftype)
(set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs)
(ui_file_write_async_safe_ftype, set_ui_file_write_async_safe)
(ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype)
(set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind)
(ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put)
(ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype)
(set_ui_file_fseek): Delete.
(ui_file_data, ui_file_delete, ui_file_rewind)
(struct ui_file): New.
(ui_file_up): New.
(class null_file): New.
(null_stream): Declare.
(ui_file_write_for_put, ui_file_put): Delete.
(ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring):
Delete.
(ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen)
(gdb_fopen, tee_file_new): Delete.
(struct string_file): New.
(struct stdio_file): New.
(stdio_file_up): New.
(struct stderr_file): New.
(class tee_file): New.
* ui-out.c (ui_out::field_stream): Take a 'string_file &' instead
of a 'ui_file *'. Adjust.
* ui-out.h (class ui_out) <field_stream>: Likewise.
* utils.c (do_ui_file_delete, make_cleanup_ui_file_delete)
(null_stream): Delete.
(error_stream): Take a 'string_file &' instead of a 'ui_file *'.
Adjust.
* utils.h (struct ui_file): Delete forward declaration..
(make_cleanup_ui_file_delete, null_stream): Delete declarations.
(error_stream): Take a 'string_file &' instead of a
'ui_file *'.
* varobj.c (varobj_value_get_print_value): Use string_file.
* xtensa-tdep.c (xtensa_verify_config): Use string_file.
* gdbarch.c: Regenerate.
|
|
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
|
This bug points out that string_to_explicit_location compares a char*
against '\0'; whereas comparing against NULL is more normal.
2016-10-05 Tom Tromey <tom@tromey.com>
PR breakpoints/20653:
* location.c (string_to_explicit_location): Use NULL, not '\0'.
|
|
I build GDB with -fsanitize=address, and see the error in tests,
(gdb) PASS: gdb.linespec/ls-errs.exp: lang=C++: break 3 foo
break -line 3 foo^M
=================================================================^M
==4401==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000047487 at pc 0x819d8e bp 0x7fff4e4e6bb0 sp 0x7fff4e4e6ba8^M
READ of size 1 at 0x603000047487 thread T0^[[1m^[[0m^M
#0 0x819d8d in explicit_location_lex_one /home/yao/SourceCode/gnu/gdb/git/gdb/location.c:502^M
#1 0x81a185 in string_to_explicit_location(char const**, language_defn const*, int) /home/yao/SourceCode/gnu/gdb/git/gdb/location.c:556^M
#2 0x81ac10 in string_to_event_location(char**, language_defn const*) /home/yao/SourceCode/gnu/gdb/git/gdb/location.c:687^
the code in question is:
> /* Special case: C++ operator,. */
> if (language->la_language == language_cplus
> && strncmp (*inp, "operator", 8) <--- [1]
> && (*inp)[9] == ',')
> (*inp) += 9;
> ++(*inp);
The error is caused by the access to (*inp)[9] if 9 is out of its bounds.
However [1] looks odd to me, because if strncmp returns true (non-zero),
the following check "(*inp)[9] == ','" makes no sense any more. I
suspect it was a typo in the code we meant to "strncmp () == 0". Another
problem in the code above is that if *inp is "operator,", we first
increment *inp by 9, and then increment it by one again, which is wrong
to me. We should only increment *inp by 8 to skip "operator", and go
back to the loop header to decide where we stop.
gdb:
2016-08-15 Yao Qi <yao.qi@linaro.org>
* location.c (explicit_location_lex_one): Compare the return
value of strncmp with zero. Don't check (*inp)[9]. Increment
*inp by 8.
|
|
gdb/ChangeLog:
2016-05-07 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
* aarch64-linux-tdep.c (aarch64_linux_sigframe_init): Remove unused
variables.
* aarch64-tdep.c (aarch64_skip_prologue): Likewise.
(aarch64_scan_prologue): Likewise.
(aarch64_prologue_prev_register): Likewise.
(aarch64_dwarf2_prev_register): Likewise.
(pass_in_v): Likewise.
(aarch64_push_dummy_call): Likewise.
(aarch64_breakpoint_from_pc): Likewise.
(aarch64_return_in_memory): Likewise.
(aarch64_return_value): Likewise.
(aarch64_displaced_step_b_cond): Likewise.
(aarch64_displaced_step_cb): Likewise.
(aarch64_displaced_step_tb): Likewise.
(aarch64_gdbarch_init): Likewise.
(aarch64_process_record): Likewise.
* alpha-mdebug-tdep.c (alpha_mdebug_init_abi): Likewise.
* alpha-tdep.c (_initialize_alpha_tdep): Likewise.
* amd64-dicos-tdep.c (amd64_dicos_init_abi): Likewise.
* amd64-linux-tdep.c (amd64_dtrace_parse_probe_argument): Likewise.
* amd64-tdep.c (fixup_riprel): Likewise.
* amd64-windows-tdep.c (amd64_windows_frame_decode_epilogue): Likewise.
(amd64_windows_frame_decode_insns): Likewise.
(amd64_windows_frame_cache): Likewise.
(amd64_windows_frame_prev_register): Likewise.
(amd64_windows_frame_this_id): Likewise.
(amd64_windows_init_abi): Likewise.
* arm-linux-tdep.c (arm_linux_get_syscall_number): Likewise.
(arm_linux_get_next_pcs_syscall_next_pc): Likewise.
* arm-symbian-tdep.c (arm_symbian_init_abi): Likewise.
* arm-tdep.c (arm_make_epilogue_frame_cache): Likewise.
(arm_epilogue_frame_prev_register): Likewise.
(arm_record_vdata_transfer_insn): Likewise.
(arm_record_exreg_ld_st_insn): Likewise.
* auto-load.c (execute_script_contents): Likewise.
(print_scripts): Likewise.
* avr-tdep.c (avr_frame_prev_register): Likewise.
(avr_push_dummy_call): Likewise.
* bfin-linux-tdep.c (bfin_linux_sigframe_init): Likewise.
* bfin-tdep.c (bfin_gdbarch_init): Likewise.
* blockframe.c (find_pc_partial_function_gnu_ifunc): Likewise.
* break-catch-throw.c (fetch_probe_arguments): Likewise.
* breakpoint.c (breakpoint_xfer_memory): Likewise.
(breakpoint_init_inferior): Likewise.
(breakpoint_inserted_here_p): Likewise.
(software_breakpoint_inserted_here_p): Likewise.
(hardware_breakpoint_inserted_here_p): Likewise.
(bpstat_what): Likewise.
(break_range_command): Likewise.
(save_breakpoints): Likewise.
* coffread.c (coff_symfile_read): Likewise.
* cris-tdep.c (cris_push_dummy_call): Likewise.
(cris_scan_prologue): Likewise.
(cris_register_size): Likewise.
(_initialize_cris_tdep): Likewise.
* d-exp.y: Likewise.
* dbxread.c (dbx_read_symtab): Likewise.
(process_one_symbol): Likewise.
(coffstab_build_psymtabs): Likewise.
(elfstab_build_psymtabs): Likewise.
* dicos-tdep.c (dicos_init_abi): Likewise.
* disasm.c (do_mixed_source_and_assembly): Likewise.
(gdb_disassembly): Likewise.
* dtrace-probe.c (dtrace_process_dof): Likewise.
* dwarf2read.c (error_check_comp_unit_head): Likewise.
(build_type_psymtabs_1): Likewise.
(skip_one_die): Likewise.
(process_imported_unit_die): Likewise.
(dwarf2_physname): Likewise.
(read_file_scope): Likewise.
(setup_type_unit_groups): Likewise.
(create_dwo_cu_reader): Likewise.
(create_dwo_cu): Likewise.
(create_dwo_unit_in_dwp_v1): Likewise.
(create_dwo_unit_in_dwp_v2): Likewise.
(lookup_dwo_unit_in_dwp): Likewise.
(free_dwo_file): Likewise.
(check_producer): Likewise.
(dwarf2_add_typedef): Likewise.
(dwarf2_add_member_fn): Likewise.
(read_unsigned_leb128): Likewise.
(read_signed_leb128): Likewise.
(dwarf2_const_value): Likewise.
(follow_die_sig_1): Likewise.
(dwarf_decode_macro_bytes): Likewise.
* extension.c (restore_active_ext_lang): Likewise.
* frv-linux-tdep.c (frv_linux_sigtramp_frame_cache): Likewise.
* ft32-tdep.c (ft32_analyze_prologue): Likewise.
* gdbtypes.c (lookup_typename): Likewise.
(resolve_dynamic_range): Likewise.
(check_typedef): Likewise.
* h8300-tdep.c (h8300_is_argument_spill): Likewise.
(h8300_gdbarch_init): Likewise.
* hppa-tdep.c (hppa32_push_dummy_call): Likewise.
(hppa_frame_this_id): Likewise.
(_initialize_hppa_tdep): Likewise.
* hppanbsd-tdep.c (hppanbsd_sigtramp_cache_init): Likewise.
* hppaobsd-tdep.c (hppaobsd_supply_fpregset): Likewise.
* i386-dicos-tdep.c (i386_dicos_init_abi): Likewise.
* i386-tdep.c (i386_bnd_type): Likewise.
(i386_gdbarch_init): Likewise.
(i386_mpx_bd_base): Likewise.
* i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Likewise.
* i386obsd-tdep.c (i386obsd_elf_init_abi): Likewise.
* ia64-tdep.c (examine_prologue): Likewise.
(ia64_frame_cache): Likewise.
(ia64_push_dummy_call): Likewise.
* infcmd.c (finish_command_fsm_async_reply_reason): Likewise.
(default_print_one_register_info): Likewise.
* infrun.c (infrun_thread_ptid_changed): Likewise.
(thread_still_needs_step_over): Likewise.
(stop_all_threads): Likewise.
(restart_threads): Likewise.
(keep_going_stepped_thread): Likewise.
* iq2000-tdep.c (iq2000_scan_prologue): Likewise.
* language.c (language_init_primitive_type_symbols): Likewise.
* linespec.c (add_sal_to_sals): Likewise.
* linux-nat.c (status_callback): Likewise.
(kill_unfollowed_fork_children): Likewise.
(linux_nat_kill): Likewise.
* linux-tdep.c (linux_fill_prpsinfo): Likewise.
* linux-thread-db.c (thread_db_notice_clone): Likewise.
(record_thread): Likewise.
* location.c (string_to_event_location_basic): Likewise.
* m32c-tdep.c (m32c_prev_register): Likewise.
* m32r-linux-tdep.c (m32r_linux_init_abi): Likewise.
* m32r-tdep.c (decode_prologue): Likewise.
* m68klinux-tdep.c (m68k_linux_sigtramp_frame_cache): Likewise.
* machoread.c (macho_symtab_read): Likewise.
(macho_symfile_read): Likewise.
(macho_symfile_offsets): Likewise.
* maint.c (set_per_command_cmd): Likewise.
* mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise.
(mi_cmd_stack_list_variables): Likewise.
* mi/mi-main.c (mi_cmd_exec_run): Likewise.
(output_register): Likewise.
(mi_cmd_execute): Likewise.
(mi_cmd_trace_define_variable): Likewise.
(print_variable_or_computed): Likewise.
* minsyms.c (prim_record_minimal_symbol_full): Likewise.
* mn10300-tdep.c (mn10300_frame_prev_register): Likewise.
* msp430-tdep.c (msp430_pseudo_register_write): Likewise.
* mt-tdep.c (mt_registers_info): Likewise.
* nios2-tdep.c (nios2_analyze_prologue): Likewise.
(nios2_push_dummy_call): Likewise.
(nios2_frame_unwind_cache): Likewise.
(nios2_stub_frame_cache): Likewise.
(nios2_stub_frame_sniffer): Likewise.
(nios2_gdbarch_init): Likewise.
* ppc-ravenscar-thread.c: Likewise.
* ppcfbsd-tdep.c (ppcfbsd_sigtramp_frame_cache): Likewise.
* python/py-evts.c (add_new_registry): Likewise.
* python/py-finishbreakpoint.c (bpfinishpy_init): Likewise.
(bpfinishpy_detect_out_scope_cb): Likewise.
* python/py-framefilter.c (py_print_value): Likewise.
* python/py-inferior.c (infpy_write_memory): Likewise.
* python/py-infevents.c (create_inferior_call_event_object): Likewise.
* python/py-infthread.c (thpy_get_ptid): Likewise.
* python/py-linetable.c (ltpy_get_pcs_for_line): Likewise.
(ltpy_get_all_source_lines): Likewise.
(ltpy_is_valid): Likewise.
(ltpy_iternext): Likewise.
* python/py-symtab.c (symtab_and_line_to_sal_object): Likewise.
* python/py-unwind.c (pyuw_object_attribute_to_pointer): Likewise.
(unwind_infopy_str): Likewise.
* python/py-varobj.c (py_varobj_get_iterator): Likewise.
* ravenscar-thread.c (ravenscar_inferior_created): Likewise.
* rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise.
* rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Likewise.
* s390-linux-tdep.c (s390_supply_tdb_regset): Likewise.
(s390_frame_prev_register): Likewise.
(s390_dwarf2_frame_init_reg): Likewise.
(s390_record_vr): Likewise.
(s390_process_record): Likewise.
* score-tdep.c (score_push_dummy_call): Likewise.
(score3_analyze_prologue): Likewise.
* sh-tdep.c (sh_extract_return_value_nofpu): Likewise.
* sh64-tdep.c (sh64_analyze_prologue): Likewise.
(sh64_push_dummy_call): Likewise.
(sh64_extract_return_value): Likewise.
(sh64_do_fp_register): Likewise.
* solib-aix.c (solib_aix_get_section_offsets): Likewise.
* solib-darwin.c (darwin_read_exec_load_addr_from_dyld): Likewise.
(darwin_solib_read_all_image_info_addr): Likewise.
* solib-dsbt.c (enable_break): Likewise.
* solib-frv.c (enable_break2): Likewise.
(frv_fdpic_find_canonical_descriptor): Likewise.
* solib-svr4.c (svr4_handle_solib_event): Likewise.
* sparc-tdep.c (sparc_skip_stack_check): Likewise.
* sparc64-linux-tdep.c (sparc64_linux_get_longjmp_target): Likewise.
* sparcobsd-tdep.c (sparc32obsd_init_abi): Likewise.
* spu-tdep.c (info_spu_dma_cmdlist): Likewise.
* stack.c (read_frame_local): Likewise.
* symfile.c (symbol_file_add_separate): Likewise.
(remove_symbol_file_command): Likewise.
* symmisc.c (maintenance_print_one_line_table): Likewise.
* symtab.c (symbol_cache_flush): Likewise.
(basic_lookup_transparent_type): Likewise.
(sort_search_symbols_remove_dups): Likewise.
* target.c (target_memory_map): Likewise.
(target_detach): Likewise.
(target_resume): Likewise.
(acquire_fileio_fd): Likewise.
(target_store_registers): Likewise.
* thread.c (print_thread_info_1): Likewise.
* tic6x-tdep.c (tic6x_analyze_prologue): Likewise.
* tilegx-linux-tdep.c (tilegx_linux_sigframe_init): Likewise.
* tilegx-tdep.c (tilegx_push_dummy_call): Likewise.
(tilegx_analyze_prologue): Likewise.
(tilegx_stack_frame_destroyed_p): Likewise.
(tilegx_frame_cache): Likewise.
* tracefile.c (trace_save): Likewise.
* tracepoint.c (encode_actions_and_make_cleanup): Likewise.
(start_tracing): Likewise.
(print_one_static_tracepoint_marker): Likewise.
* tui/tui.c (tui_enable): Likewise.
* valops.c (value_struct_elt_bitpos): Likewise.
(find_overload_match): Likewise.
(find_oload_champ): Likewise.
* value.c (value_contents_copy_raw): Likewise.
* windows-tdep.c (windows_get_tlb_type): Likewise.
* x86-linux-nat.c (x86_linux_enable_btrace): Likewise.
* xcoffread.c (record_minimal_symbol): Likewise.
(scan_xcoff_symtab): Likewise.
* xtensa-tdep.c (execute_code): Likewise.
(xtensa_gdbarch_init): Likewise.
(_initialize_xtensa_tdep): Likewise.
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This patch refactors string_to_event_location, breaking it into two
separate functions:
1) string_to_event_location_basic
A "basic" string parser that implements support for "legacy" linespecs
(linespec, address, and probe locations). This function is intended to
be used by any UI wishing/needing to support this legacy behavior.
2) string_to_event_location
This is now intended as a CLI-only function which adds explicit location
parsing in a CLI-appropriate manner (in the form of traditional option/value
pairs).
Together these patches serve to simplify string-to-event location parsing
for all existing non-CLI interfaces (MI, guile, and python).
gdb/ChangeLog
* location.c (string_to_explicit_location): Note that "-p" is
reserved for probe locations and return NULL for any input
that starts with that.
(string_to_event_location): Move "legacy" linespec code to ...
(string_to_event_location_basic): ... here.
* location.h (string_to_event_location): Update comment.
(string_to_event_location_basic): New function.
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A relatively recent patch support for explicit locations, and part
of that patch cleaned up the way we parse breakpoint locations.
Unfortunatly, a small regression crept in for "*<EXPR>" breakpoint
locations. In particular, on PIE programs, one can see the issue by
doing the following, with any program:
(gdb) b *main
Breakpoint 1 at 0x51a: file hello.c, line 3.
(gdb) run
Starting program: /[...]/hello
Error in re-setting breakpoint 1: Warning:
Cannot insert breakpoint 1.
Cannot access memory at address 0x51a
Warning:
Cannot insert breakpoint 1.
Cannot access memory at address 0x51a
Just for the record, this regression was introduced by:
commit a06efdd6effd149a1d392df8d62824e44872003a
Date: Tue Aug 11 17:09:35 2015 -0700
Subject: Explicit locations: introduce address locations
What happens is that the patch makes the implicit assumption that
the address computed the first time is static, as if it was designed
to only support litteral expressions (Eg. "*0x1234"). This allows
the shortcut of not re-computing the breakpoint location's address
when re-setting breakpoints.
However, this does not work in general, as demonstrated in the example
above.
This patch plugs that hole simply by saving the original expression
used to compute the address as part of the address location, so as
to then re-evaluate that expression during breakpoint re-set.
gdb/ChangeLog:
* location.h (new_address_location): Add new parameters
"addr_string" and "addr_string_len".
(get_address_string_location): Add declaration.
* location.c (new_address_location): Add new parameters
"addr_string" and "addr_string_len". If not NULL, store
a copy of the addr_string in the new location as well.
(get_address_string_location): New function.
(string_to_event_location): Update call to new_address_location.
* linespec.c (event_location_to_sals) <ADDRESS_LOCATION>:
Save the event location in the parser's state before
passing it to convert_address_location_to_sals.
* breakpoint.c (create_thread_event_breakpoint): Update call
to new_address_location.
(init_breakpoint_sal): Get the event location's string, if any,
and use it to update call to new_address_location.
* python/py-finishbreakpoint.c (bpfinishpy_init):
Update call to new_address_location.
* spu-tdep.c (spu_catch_start): Likewise.
* config/djgpp/fnchange.lst: Add entries for
gdb/testsuite/gdb.base/break-fun-addr1.c and
gdb/testsuite/gdb.base/break-fun-addr2.c.
gdb/testsuite/ChangeLog:
* gdb.base/break-fun-addr.exp: New file.
* gdb.base/break-fun-addr1.c: New file.
* gdb.base/break-fun-addr2.c: New file.
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gdb/ChangeLog:
Update year range in copyright notice of all files.
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The locations patch I recently committed contains macro definitions
such as:
This causes an ARI error to be emitted by the server ("Do not use PTR, ISO C
90 implies `void *'"). While this ARI error is bogus in this context,
it is just easiest to squash the error completely by renaming the macro
parameters.
gdb/ChangeLog
* location.c (EL_TYPE, EL_LINESPEC, EL_PROBE, EL_ADDRESS)
(EL_EXPLICIT, EL_STRING): Change macro parameter to "P" to
silence ARI errors.
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BuildBot reminded me that "explicit" is a reserved keyword in C++.
This patch simply renames all the (illegal) uses of "explicit". This should
fix the build errors with --enable-build-with-cxx bots.
gdb/ChangeLog
* break-catch-throw.c (re_set_exception_catchpoint) Rename
reserved C++ keyword "explicit" to "explicit_loc".
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint, update_static_tracepoint):
Rename reserved C++ keyword "explicit" to "explicit_loc".
* completer.c (collect_explicit_location_matches)
(explicit_location_completer): Rename reserved C++ keyword
"explicit" to "explicit_loc".
* linespec.c (struct linespec) <explicit>: Rename to "explicit_loc".
(canonicalize_linespec, create_sals_line_offset)
(convert_linespec_to_sals, convert_explicit_location_to_sals)
(event_location_to_sals, decode_objc): Rename reserved C++ keyword
"explicit" to "explicit_loc".
* location.c (struct event_location) <explicit>: Rename to
"explicit_loc".
(initialize_explicit_location, new_explicit_location)
(explicit_location_to_string_internal, explicit_location_to_linespec):
Rename reserved C++ keyword "explicit" to "explicit_loc".
* location.h (explicit_location_to_string)
(explicit_location_to_linespec, initialize_explicit_location)
(new_explicit_location): Rename reserved C++ keyword "explicit"
to "explicit_loc".
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++
keyword "explicit" to "explicit_loc".
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This patch exposes explicit locations to the CLI user. This enables
users to "explicitly" specify attributes of the breakpoint location
to avoid any ambiguity that might otherwise exist with linespecs.
The general syntax of explicit locations is:
-source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME
-label LABEL_NAME
Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users
may use the completer with either options or values.
gdb/ChangeLog:
* completer.c: Include location.h.
(enum match_type): New enum.
(location_completer): Rename to ...
(linespec_completer): ... this.
(collect_explicit_location_matches, backup_text_ptr)
(explicit_location_completer): New functions.
(location_completer): "New" function; handle linespec
and explicit location completions.
(complete_line_internal): Remove all location completer-specific
handling.
* linespec.c (linespec_lexer_lex_keyword, is_ada_operator)
(find_toplevel_char): Export.
(linespec_parse_line_offset): Export.
Issue error if STRING is not numerical.
(gdb_get_linespec_parser_quote_characters): New function.
* linespec.h (linespec_parse_line_offset): Declare.
(get_gdb_linespec_parser_quote_characters): Declare.
(is_ada_operator): Declare.
(find_toplevel_char): Declare.
(linespec_lexer_lex_keyword): Declare.
* location.c (explicit_to_event_location): New function.
(explicit_location_lex_one): New function.
(string_to_explicit_location): New function.
(string_to_event_location): Handle explicit locations.
* location.h (explicit_to_event_location): Declare.
(string_to_explicit_location): Declare.
gdb/testsuite/ChangeLog:
* gdb.linespec/3explicit.c: New file.
* gdb.linespec/cpexplicit.cc: New file.
* gdb.linespec/cpexplicit.exp: New file.
* gdb.linespec/explicit.c: New file.
* gdb.linespec/explicit.exp: New file.
* gdb.linespec/explicit2.c: New file.
* gdb.linespec/ls-errs.exp: Add explicit location tests.
* lib/gdb.exp (capture_command_output): Regexp-escape `command'
before using in the matching pattern.
Clarify that `prefix' is a regular expression.
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This patch add support for explicit locations and switches many linespec
locations to this new location type. This patch also converts all
linespec locations entered by the user to an explicit representation
internally (thus bypassing the linespec parser when resetting the
breakpoint).
This patch does not introduce any user-visible changes.
gdb/ChangeLog:
* break-catch-throw.c (re_set_exception_catchpoint): Convert
linespec into explicit location.
* breakpoint.c (create_overlay_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint): Convert linespec into explicit
location.
(update_static_tracepoint): Convert linespec into explicit location.
* linespec.c (enum offset_relative_sign, struct line_offset): Move
location.h.
(struct linespec) <expression, expr_pc, source_filename>
<function_name, label_name, line_offset>: Replace with ...
<explicit>: ... this.
<is_linespec>: New member.
(PARSER_EXPLICIT): New accessor macro.
(undefined_label_error): New function.
(source_file_not_found_error): New function.
(linespec_parse_basic): The parser result is now an explicit location.
Use PARSER_EXPLICIT to access it.
Use undefined_label_error.
(canonicalize_linespec): Convert canonical linespec into explicit
location.
Move string representation of location to explicit_location_to_linespec
and use it and explicit_location_to_string to save string
representations of the canonical location.
(create_sals_line_offset, convert_linespec_to_sals): `ls' contains an
explicit location. Update all references.
(convert_explicit_location_to_sals): New function.
(parse_linespec): Use PARSER_EXPLICIT to access the parser
result's explicit location.
(linespec_state_constructor): Initialize is_linespec.
Use PARSER_EXPLICIT.
(linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's
result.
(event_location_to_sals): For linespec locations, set is_linespec.
Handle explicit locations.
(decode_objc): 'ls' contains an explicit location now. Update all
references.
(symtabs_from_filename): Use source_file_not_found_error.
* location.c (struct event_location.u) <explicit>: New member.
(initialize_explicit_location): New function.
(initialize_event_location): Initialize explicit locations.
(new_explicit_location, get_explicit_location)
(get_explicit_location_const): New functions.
(explicit_to_string_internal): New function; most of contents moved
from canonicalize_linespec.
(explicit_location_to_string): New function.
(explicit_location_to_linespec): New function.
(copy_event_location, delete_event_location)
(event_location_to_string_const, event_location_empty_p): Handle
explicit locations.
* location.h (enum offset_relative_sign, struct line_offset): Move
here from linespec.h.
(enum event_location_type): Add EXPLICIT_LOCATION.
(struct explicit_location): New structure.
(explicit_location_to_string): Declare.
(explicit_location_to_linespec): Declare.
(new_explicit_location, get_explicit_locationp
(get_explicit_location_const, initialize_explicit_location): Declare.
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