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Handling of the 'F' packet has been broken since commit
4b20fab101b9e2d0fb47454209637a17fc7a13d5, which converted it to use
the new packet parsing infrastructure. Per the GDB RSP specification
https://sourceware.org/gdb/current/onlinedocs/gdb/The-F-Reply-Packet.html
the second parameter may be omitted, but the rewritten implementation
was failing to recognize this case. The result was that QEMU was
repeatedly resending the fileio request and ignoring GDB's replies of
successful completion. This patch restores the behavior of the
previous code in allowing the errno parameter to be omitted and
passing 0 to the callback in that case.
Signed-off-by: Sandra Loosemore <sandra@codesourcery.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190827223317.8614-1-sandra@codesourcery.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Since the '!' packet is not handled by the new infrastructure,
gdb_handle_packet() would call run_cmd_parser() with a NULL cmd_parser
value, which would lead to an unsupported packet ("$#00") being sent,
which could confuse the gdb client.
This also has a side-effect of speeding up the initial connection with
gdb.
Fixes: 3e2c12615b52 ("gdbstub: Implement deatch (D pkt) with new infra")
Signed-off-by: Ramiro Polla <ramiro.polla@gmail.com>
Message-Id: <20190805190901.14072-1-ramiro.polla@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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sysemu/sysemu.h is a rather unfocused dumping ground for stuff related
to the system-emulator. Evidence:
* It's included widely: in my "build everything" tree, changing
sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600
objects (not counting tests and objects that don't depend on
qemu/osdep.h, down from 5400 due to the previous two commits).
* It pulls in more than a dozen additional headers.
Split stuff related to run state management into its own header
sysemu/runstate.h.
Touching sysemu/sysemu.h now recompiles some 850 objects. qemu/uuid.h
also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400
to 4200. Touching new sysemu/runstate.h recompiles some 500 objects.
Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also
add qemu/main-loop.h.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-30-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[Unbreak OS-X build]
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The refactoring of handle_set_reg missed the fact we previously had
responded with an empty packet when we were not using XML based
protocols. This broke the fallback behaviour for architectures that
don't have registers defined in QEMU's gdb-xml directory.
Revert to the previous behaviour and clean up the commentary for what
is going on.
Fixes: 62b3320bddd
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Jon Doron <arilou@gmail.com>
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Add a link to the remote protocol spec and an SPDX tag.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Basically, the context could get the MachineState reference via call
chains or unrecommended qdev_get_machine() in !CONFIG_USER_ONLY mode.
A local variable of the same name would be introduced in the declaration
phase out of less effort OR replace it on the spot if it's only used
once in the context. No semantic changes.
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190518205428.90532-4-like.xu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Most callers know which monitor type they want to have. Instead of
calling monitor_init() with flags that can describe both types of
monitors, make monitor_init_{hmp,qmp}() public interfaces that take
specific bools instead of flags and call these functions directly.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190613153405.24769-15-kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
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Add a new query/set which changes the memory GDB sees to physical memory
only.
gdb> maint packet qqemu.PhyMemMode
will reply the current phy_mem_mode state (1 for enabled, 0 for disabled)
gdb> maint packet Qqemu.PhyMemMode:1
Will make GDB read/write only to physical memory, set to 0 to disable
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-21-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-20-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Note: The user-mode thread-id has been correctly reported since bd88c780e6
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-19-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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The generic set/query packets contains implementation for varioius
sub-commands which are required for GDB and also additional commands
which are QEMU specific.
To see which QEMU specific commands are available use the command
gdb> maintenance packet qqemu.Supported
Currently the only implemented QEMU specific command is the command
that sets the single step behavior.
gdb> maintenance packet qqemu.sstepbits
Will display the MASK bits used to control the single stepping.
gdb> maintenance packet qqemu.sstep
Will display the current value of the mask used when single stepping.
gdb> maintenance packet Qqemu.sstep:HEX_VALUE
Will change the single step mask.
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-18-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-17-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-16-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-15-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-14-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-13-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-12-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-11-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-10-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-9-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-8-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-7-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-6-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-5-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-4-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-3-arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-2-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-4-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c
hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c;
ui/cocoa.m fixed up]
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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In preparation for having some more common semihosting code let's
excise the current config magic from vl.c into its own file. We shall
later add more conditionals to the build configurations so we can
avoid building this if we don't need it.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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gdb_read_byte() passes its @ch argument to isxdigit(). Undefined
behavior when the value is negative. Two callers:
* gdb_chr_receive() passes an uint8_t value. Safe.
* gdb_handlesig() a char value. Unsafe. Not a security issue,
because the characters come from the gdb client, which is trusted.
The obvious fix would be casting @ch to unsigned char. But note that
gdb_read_byte() already casts @ch to uint8_t in many places. Uses of
@ch without such a cast:
(1) Compare to a character constant with == or !=
(2) s->linesum += ch
(3) Store ch or ch ^ 0x20 into s->line_buf[]
(4) Check for invalid RLE count:
ch < ' ' || ch == '#' || ch == '$' || ch > 126
(5) Pass to isxdigit()
(6) Pass to fromhex()
Change the parameter type from int to uint8_t, and drop the now
redundant casts. Affects the above uses as follows:
(1) No change: the character constants are all non-negative.
(2) Effectively no change: we only ever use s->linesum & 0xff, and
s->linesum is int.
(3) No change: s->line_buf[] is char[].
(4) No change.
(5) Avoid undefined behavior.
(6) No change: only reached when isxdigit(ch)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190514180311.16028-5-armbru@redhat.com>
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"Debugging with GDB / Appendix E GDB Remote Serial Protocol /
Overview" specifies "The printable characters '#' and '$' or with a
numeric value greater than 126 must not be used." gdb_read_byte()
only rejects values < 32. This is wrong. Impact depends on the caller:
* gdb_handlesig() passes a char. Incorrectly accepts '#', '$' and
'\127'.
* gdb_chr_receive() passes an uint8_t. Additionally accepts
characters with the most-significant bit set.
Correct the validity check to match the specification.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190514180311.16028-4-armbru@redhat.com>
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The vCont packet accepts a series of actions, each being applied on a
given thread ID. Giving no thread ID for an action is valid and means
"all threads".
This commit fixes vCont packets being incorrectly rejected when no
thread ID was given for an action.
In multiprocess mode, the GDB Remote Protocol specification is unclear
on what "all threads" means. We choose to apply the action on all
threads of all attached processes.
This commit is based on the initial fix by Lucien Murray-Pitts.
Fixes: e40e5204af8388
Reported-by: Lucien Murray-Pitts <lucienmp_antispam@yahoo.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190325110452.6756-1-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Per the GDB remote protocol documentation
https://sourceware.org/gdb/current/onlinedocs/gdb/Packets.html#index-vKill-packet
the debug stub is expected to send a reply to the 'vKill' packet. At
least some versions of GDB crash if the gdb stub simply exits without
sending a reply. This patch fixes QEMU's gdb stub to conform to the
expected behavior.
Note that QEMU's existing handling of the legacy 'k' packet is
correct: in that case GDB does not expect a reply, and QEMU does not
send one.
Signed-off-by: Sandra Loosemore <sandra@codesourcery.com>
Message-id: 1550008033-26540-1-git-send-email-sandra@codesourcery.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This will be needed by vhost-user-test, when each test switches to
its own GMainLoop and GMainContext. Otherwise, for a reconnecting
socket the initial connection will happen on the default GMainContext,
and no one will be listening on it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190202110834.24880-1-pbonzini@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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With multiprocess extensions gdb uses 'vKill' packet instead of 'k' to
kill the inferior. Handle 'vKill' the same way 'k' was handled in the
presence of single process.
Fixes: 7cf48f6752e5 ("gdbstub: add multiprocess support to
(f|s)ThreadInfo and ThreadExtraInfo")
Cc: Luc Michel <luc.michel@greensocs.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
Message-id: 20190130192403.13754-1-jcmvbkbc@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Now we're keeping the cluster index in the CPUState, we don't
need to jump through hoops in gdb_get_cpu_pid() to find the
associated cluster object.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-5-peter.maydell@linaro.org
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a TID or PID value means "any thread" (resp. "any process"). This commit
fixes the different combinations when at least one value is 0.
When both are 0, the function now returns the first attached CPU,
instead of the CPU with TID 1, which is not necessarily attached or even
existent.
When PID is specified but TID is 0, the function returns the first CPU
in the process, or NULL if the process does not exist or is not
attached.
In other cases, it returns the corresponding CPU, while ignoring the PID
check when PID is 0.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190119140000.11767-1-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add multiprocess extension support by enabling multiprocess mode when
the peer requests it, and by replying that we actually support it in the
qSupported reply packet.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-16-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When gdb_set_stop_cpu() is called with a CPU associated to a process
currently not attached by the GDB client, return without modifying the
stop CPU. Otherwise, GDB gets confused if it receives packets with a
thread-id it does not know about.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-15-luc.michel@greensocs.com
[PMM: fix checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When a new connection is established, we set the first process to be
attached, and the others detached. The first CPU of the first process
is selected as the current CPU.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181207090135.7651-14-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add support for the vAttach packets. In multiprocess mode, GDB sends
them to attach to additional processes.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181207090135.7651-13-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add support for the '!' extended mode packet. This is required for the
multiprocess extension.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-12-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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'D' packets are used by GDB to detach from a process. In multiprocess
mode, the PID to detach from is sent in the request.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-11-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add support for multiprocess extension in gdb_vm_state_change()
function.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-10-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Change the Xfer:features:read: packet handling to support the
multiprocess extension. This packet is used to request the XML
description of the CPU. In multiprocess mode, different descriptions can
be sent for different processes.
This function now takes the process to send the description for as a
parameter, and use a buffer in the process structure to store the
generated description.
It takes the first CPU of the process to generate the description.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-9-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Change the thread info related packets handling to support multiprocess
extension.
Add the CPUs class name in the extra info to help differentiate
them in multiprocess mode.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-8-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Change the sC packet handling to support the multiprocess extension.
Instead of returning the first thread, we return the first thread of the
current process.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-7-luc.michel@greensocs.com
[PMM: corrected checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add the gdb_first_attached_cpu() and gdb_next_attached_cpu() to iterate
over all the CPUs in currently attached processes.
Add the gdb_first_cpu_in_process() and gdb_next_cpu_in_process() to
iterate over CPUs of a given process.
Use them to add multiprocess extension support to vCont packets.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20181207090135.7651-6-luc.michel@greensocs.com
[PMM: corrected checkpatch comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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