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I've long wanted to remove 'struct buffer', and thanks to Simon's
earlier patch, I was finally able to do so. My feeling has been that
gdb already has several decent structures available for growing
strings: std::string of course, but also obstack and even objalloc
from BFD and dyn-string from libiberty. The previous patches in this
series removed all the uses of struct buffer, so this one can remove
the code and the remaining #includes.
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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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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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This patch adds the generic remote bits to gdbserver so it can check for memory
tagging support and handle fetch tags and store tags requests.
gdbserver/ChangeLog:
2021-03-24 Luis Machado <luis.machado@linaro.org>
* remote-utils.cc (decode_m_packet_params): Renamed from ...
(decode_m_packet): ... this, which now calls decode_m_packet_params.
Make char * param/return const char *.
(decode_M_packet): Use decode_m_packet_params and make char * param
const char *.
* remote-utils.h (decode_m_packet_params): New prototype.
(decode_m_packet): Constify char pointers.
(decode_M_packet): Likewise.
* server.cc (create_fetch_memtags_reply)
(parse_store_memtags_request): New
functions.
(handle_general_set): Handle the QMemTags packet.
(parse_fetch_memtags_request): New function.
(handle_query): Handle the qMemTags packet and advertise memory
tagging support.
(captured_main): Initialize memory tagging flag.
* server.h (struct client_state): Initialize memory tagging flag.
* target.cc (process_stratum_target::supports_memory_tagging)
(process_stratum_target::fetch_memtags)
(process_stratum_target::store_memtags): New methods.
* target.h: Include gdbsupport/byte-vector.h.
(class process_stratum_target) <supports_memory_tagging>
<fetch_memtags, store_memtags>: New class virtual methods.
(target_supports_memory_tagging): Define.
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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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This port has been unmaintained for years, remove it.
gdbserver/ChangeLog:
* Makefile.in (SFILES): Remove win32-arm-low.cc, wincecompat.cc.
* configure.srv: Remove mingw32ce cases.
* server.h, win32-low.cc: Remove __MINGW32CE__-guarded code.
* win32-low.h (to_back_slashes): Remove.
* win32-arm-low.cc, wincecompat.cc, wincecompat.h: Remove.
Change-Id: Ib75c0b55b0ab7caca38bbeff5f2fa9397a8e7e8d
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gdb_fildes_t and pfildes are no longer used, so remove them.
gdbserver/ChangeLog
2020-04-13 Tom Tromey <tom@tromey.com>
* server.h (gdb_fildes_t): Remove typedef.
* remote-utils.c (remote_desc, list_desc): Now int.
(INVALID_DESCRIPTOR): Remove.
(gdb_connected, remote_close)
(check_remote_input_interrupt_request): Update.
* utils.h (pfildes): Don't declare.
* utils.c (pfildes): Remove.
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This changes gdbserver to use the gdbserver event loop, removing the
ancient fork.
gdbserver/ChangeLog
2020-04-13 Tom Tromey <tom@tromey.com>
* server.h (handle_serial_event, handle_target_event): Update.
* server.c: Don't call initialize_event_loop.
(keep_processing_events): New global.
(handle_serial_event): Return void. Set keep_processing_events.
(handle_target_event): Return void.
(start_event_loop): Move from event-loop.c. Rewrite.
* remote-utils.c (handle_accept_event): Return void.
(reset_readchar): Use delete_timer.
(process_remaining): Return void.
(reschedule): Use create_timer.
* event-loop.h: Remove.
* event-loop.cc: Remove.
* Makefile.in (OBS): Use gdbsupport/event-loop.o, not event-loop.o.
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There is a developer only feature in gdbserver that provides a
command line option --disable-packet that prevents some packets from
being sent, which is used to increase test coverage within GDB.
This commit extends this mechanism to prevent GDBserver from sending
the T stop reply packets, instead limiting GDBserver to only send the
S stop reply packets.
The S stop reply packet is part of the older target control mechanism,
which has design flaws that were worked around with the introduction
of the newer target control mechanism, which uses the T stop reply
packet.
Limiting GDBserver to use S stop packets instead of T stop packets
will, inevitably, mean that GDBserver doesn't function correctly in
many cases involving multiple threads, however, I don't think this is
too important, this is a developer only feature, intended to allow us
to test GDB.
A new test that makes use of this feature will be added in the next
commit.
gdbserver/ChangeLog:
* remote-utils.cc (prepare_resume_reply): Add ability to convert T
reply into an S reply.
* server.cc (disable_packet_T): New global.
(captured_main): Set new global when appropriate.
* server.h (disable_packet_T): Declare.
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This patch moves gdbserver to the top level.
This patch is as close to a pure move as possible -- gdbserver still
builds its own variant of gnulib and gdbsupport. Changing this will
be done in a separate patch.
[v2] Note that, per Simon's review comment, this patch changes the
tree so that gdbserver is not built for or1k or score. This makes
sense, because there is apparently not actually a gdbserver port here.
[v3] This version of the patch also splits out some configury into a
new file, gdbserver/configure.host, so that the top-level configure
script can simply rely on it in order to decide whether gdbserver
should be built.
[v4] This version adds documentation and removes some unnecessary
top-level dependencies.
[v5] Update docs to mention "make all-gdbserver" and change how
top-level configure decides whether to build gdbserver, switching to a
single, shared script.
Tested by the buildbot.
ChangeLog
2020-02-07 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* src-release.sh (GDB_SUPPORT_DIRS): Add gdbserver.
* gdbserver: New directory, moved from gdb/gdbserver.
* configure.ac (host_tools): Add gdbserver.
Only build gdbserver on certain systems.
* Makefile.in, configure: Rebuild.
* Makefile.def (host_modules, dependencies): Add gdbserver.
* MAINTAINERS: Add gdbserver.
gdb/ChangeLog
2020-02-07 Tom Tromey <tom@tromey.com>
* README: Update gdbserver documentation.
* gdbserver: Move to top level.
* configure.tgt (build_gdbserver): Remove.
* configure.ac: Remove --enable-gdbserver.
* configure: Rebuild.
* Makefile.in (distclean): Don't mention gdbserver.
Change-Id: I826b7565b54604711dc7a11edea0499cd51ff39e
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