this patch contains several changes to run control and state
handling together with gdb:
- graceful handling of target/gdb desync on resume, step and halt
- a default gdb-attach event executing the "halt" command, to meet gdb
expectation of target state when it attaches
- call target_poll() after Ctrl-C command from gdb
- call target_poll() after resume and step through a vCont packet
- fix log message forwarding on vCont stepping, also move an aarch64
log message from INFO to DEBUG level to prevent messing up the gdb
console during source-line stepping
- fix oversight in vCont support that messes up breakpoint handling
during stepping
Change-Id: Ic79db7c2b798a35283ff752e9b12475486a1f31a
Fixes: d301d8b42f
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4432
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
make sure the RTOS thread database is updated early on a new
gdb connection.
Change-Id: I4da9ef30f8634263d697116cefc47976cd1970ad
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4000
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Tested-by: jenkins
The RTOS handlers present OS threads to gdb but the openocd
target layer only knows about CPU cores (hardware threads).
This patch allows closing this gap inside the RTOS handler.
The default implementation just returns the current core, but
a RTOS handler can provide its own function that associates a
an OS thread with a core.
Change-Id: I12cafe50b38a38b28057bc5d3a708aa20bf60515
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3997
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Tested-by: jenkins
Make gdb use target support for single-stepping if available.
Change-Id: Ie72345a1e749aefba7cd175ccbf5cf51d4f1a632
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3833
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Clang static checker emits "Assigned value is garbage or undefined"
warning there as it can't prove that when the socket descriptor is
AF_INET/SOCK_STREAM and getsockname doesn't return an error, sin_port
is guaranteed to be filled in.
Pacify it by obvious means.
Change-Id: I43b5e5ceb41c07d523a81b34a25490c4c5f49a70
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4350
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
When listening on port 0, the system will assign a random open port. We
use this to run multiple OpenOCD instances against multiple simulators
as part of regression testing. This mechanism means the various test
instances don't have to coordinate to ensure they don't reuse any ports.
The required changes are minimal:
1. Don't increment the port number when it's 0.
2. Print out which port was assigned by the system.
Change-Id: I404c801fc405e9d8eb8420562c02e78d4db6242f
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4316
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Handle the Ctrl+A and Ctrl+E shortcuts which move the cursor to the
beginning and end of the command line, respectively.
Change-Id: I89fa5fd3c5edeb08a3f9320fda766f72ce9d7f64
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3415
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
When multiple targets are declared, it's not always obvious which
target the connection was made for, this can lead to very confusing
errors.
Reported by zjason on IRC.
Change-Id: I52906320394e89cb6cfe82054a3f94b27c999689
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4135
Tested-by: jenkins
Make this error message more useful by providing the port number
that we tried to bind to.
Change-Id: Ieb18adf0725a6ae99c77ebfaadc49d64ed407bbe
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-on: http://openocd.zylin.com/4157
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
A common use case seen in the wild is echoing a string of commands to an
existing openocd instance via netcat. The sequence of ; separated
commands can easily run over the line limit of only 256 chars.
Increasing this dramatically reduces surprises, at the expense of a tiny
amount of extra ram usage.
Change-Id: I2389d99d316a96b5fa03f0894b43c412308e12c4
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-on: http://openocd.zylin.com/4132
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
They're never used, so just drop them.
Change-Id: Ie137deed3e7258f9d6af7e0cb508e73df0f53ee0
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-on: http://openocd.zylin.com/4131
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
With this patch OpenOCD shuts down properly when errors occur in the
server instead of just calling exit().
Change-Id: I2ae1a6153dafc88667951cab9152941cb487be85
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3223
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
Accept 64 bit addresses from GDB read memory packet.
Also allow breakpoint/stepping addresses to take 64bit values.
Change-Id: I9bf7b44affe24839cf30897c55ad17fdd29edf14
Signed-off-by: David Ung <david.ung.42@gmail.com>
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Define a target_addr_t type to support 32-bit and 64-bit addresses at
the same time. Also define matching TARGET_PRI*ADDR format macros as
well as a convenient TARGET_ADDR_FMT.
In targets that are 32-bit (avr32, nds32, arm7/9/11, fm4, xmc1000)
be least invasive by leaving the formatting unchanged apart from the
type;
for generic code adopt TARGET_ADDR_FMT as unified address format.
Don't silently change gdb formatting here, leave that to later.
Add COMMAND_PARSE_ADDRESS() macro to abstract the address type.
Implement it using its own parse_target_addr() function, in the hopes
of catching pointer type mismatches better.
Add '--disable-target64' configure option to revert to previous 32-bit
target address behavior.
Change-Id: I2e91d205862ceb14f94b3e72a7e99ee0373a85d5
Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Signed-off-by: David Ung <david.ung.42@gmail.com>
[AF: Default to enabling (Paul Fertser), rename macros, simplify]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
These libraries override the used CFLAGS without adding the
defaults. This didn't have any effect until change
http://openocd.zylin.com/3870 (ef4c139). Restore by adding
AM_CLAGS to the per-target CFLAGS.
Interestingly, automake seems to clear the CFLAGS for the target
even if the override variable is only mentioned within a non-active
conditional branch, such as the IS_MINGW for the affected libraries.
Change-Id: I805206865e59e3fa33a7ea3c0d3472e51219351c
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3927
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Simplify hexify() and do not longer use 0 as special case for the
parameter 'count' to determine the string length of the binary input.
Instead, use strlen() outside of the function if needed.
Additionally, fix the return value and return the length of the
converted string. The old function always returned 2 * count.
Also, use more appropriate data types for the function parameters and
add a small documentation.
Change-Id: I133a8ab786b8f7c1296afcaf9c0a0b43881e5112
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3793
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This patch adds support for the qXfer:threads:read packet. In addition
to providing a more efficient method of updating thread state, recent
versions of GDB (7.11.1 and up) can also report remote thread names.
While thread names are not enabled in this patch due to its limited
applicability at the moment, it can be enabled at a later date with
little effort.
As a part of revamping how threads are presented to GDB, extra info
strings for each of the supported RTOSes were updated to match
conventions present in the GDB source code. For more information, see
remote_threads_extra_info() in remote.c. This results in a much smoother
experience when interacting with GDB.
It is also worth mentioning that use of qXfer:threads:read works around
a number of regressions in older versions of GDB regarding remote thread
display. Trust me, it's great.
Change-Id: I97dd6a93c342ceb9b9d0023b6359db0e5604c6e6
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/3559
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
To speed up downloads, OpenOCD sends gdb OK when a write is received,
even before the write has actually occurred. The failure is then
returned for the next write. That leads to the following confusing
behavior:
```
(gdb) p/x *((int*)0xdeadbeef)=8675309
$2 = 0x845fed
(gdb) p/x *((int*)0x80000000)=6874742
Cannot access memory at address 0x80000000
```
While it's actually the first write that failed.
This change hacks around this problem by not sending OK for small writes
(len<8) until the write has actually occurred. This does not impact
download speed, since during downloads (almost) all writes will have
much larger length.
Change-Id: I1f8b9bb19b0707487f840df6871e372e4ba228dd
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/3803
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The current implementation is not suitable for user provided data
because it does not detect invalid inputs in many cases. For example,
the string "aa0xbb" is successfully converted to the 3 bytes: 0xaa,
0x00 and 0xbb. An other example is "aabi" which is successfully
converted to the 2 bytes: 0xaa and 0x0b. Both are obviously incorrect.
Make unhexify() robust on invalid data and use more appropriate data
types for its parameters. Also, add a small documentation for the
function.
Change-Id: Idb799beb86fc608b066c8a76365021ed44c7f890
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3792
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
As per the documentation, used "disabled" as the value to disable, as this
is the same value to disable the telnet and tcl server.
Change-Id: Idc4a8580098ec1107dcc6e1f59e817ecdebc38ac
Signed-off-by: Sandeep Mistry <s.mistry@arduino.cc>
Reviewed-on: http://openocd.zylin.com/3175
Tested-by: jenkins
Reviewed-by: Cristian Maglie
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Although the documentation suggested this worked, and it is implemented
for tcl_port and telnet_port, the directive was not recognized for
gdb_port.
Change-Id: I38d95ee879ec3f6d551603b7313749a21e0e498e
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Reviewed-on: http://openocd.zylin.com/3637
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Some installations of OpenOCD are used in restricted environments that
do not permit binding to public interfaces.
This patch does not affect the default behavior to listen on all
interfaces, however it does give the option to restrict services by way
of the bindto command.
Change-Id: Id51bd64b376a8c62dd47b08b4d834872925e6af2
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/3534
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Also make GPL notices consistent according to:
https://www.gnu.org/licenses/gpl-howto.html
Change-Id: I84c9df40a774958a7ed91460c5d931cfab9f45ba
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/3488
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Currently, the maximum size of a command sent to the TCL server is
4k. This patch increases this limit up to 4M.
Reasoning:
To get high-speed JTAG data transfers, I'm using a very long shift
register. This reduces the overhead of the state changes, as well as the
latency due to the common USB adapter transfers considerably. In order
to submit those long DRSCAN commands to OpenOCD over the TCL/TCL
interface, long TCL command lines are required. This is enabled by this
patch.
v3:
Address review comments. Drop line instead of connection when realloc()
fails.
Changes in v2 of this patch:
The line buffer is allocated dynamically to avoid an OpenOCD memory
overhead if the large buffers are not used. The buffer starts at 4K and
increases exponentially up to 1M, and then linearly in 1M increments up
to 4M.
Change-Id: Iecaef6a56ed5e18e9de4d912a514031ea78fa3bd
Signed-off-by: Philipp Wagner <philipp.wagner@tum.de>
Reviewed-on: http://openocd.zylin.com/2837
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Add constant CONNECTION_LIMIT_UNLIMITED which indicates a service
has no connection limit
Change-Id: I008d31264010c25fa44ca74eb6d5740eca38bee1
Signed-off-by: Austin Morton <austinpmorton@gmail.com>
Reviewed-on: http://openocd.zylin.com/2937
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This patch might influence openocd Tcl commands behaviour in subtle
ways, please give it a nice testing.
The idea is that if an OpenOCD Tcl command returns an error, an
exception is raised, and then the return code is propogated all the
way up (or to the "catch" if present). This allows to detect
"shutdown" which is not actually an error but has to raise an
exception to stop execution of the commands that follow it in the
script.
openocd_thread special-cases shutdown because it should then terminate
OpenOCD with a success error code, unless shutdown was called with an
optional "error" argument which means terminate with a non-zero exit
code.
Change-Id: I7b6fa8a2e24c947dc45d8def0008b4b007c478b3
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2600
Tested-by: jenkins
Reviewed-by: Juha Niskanen <juha.niskanen@haltian.com>
Reviewed-by: Jens Bauer <jens@gpio.dk>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
This should facilitate dynamic target creation and removal.
Currently it helps with getting 0 bytes lost report from Valgrind on
exit (after talking to a nucleo board). However, 1,223,886 bytes in
5,268 blocks are still reachable which means the app holds pointers to
that data on exit. The majority comes from the jtag command queue,
there're also many blocks from TCL command registration.
Change-Id: I7523234bb90fffd26f7d29cdd7648ddd221d46ab
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2544
Tested-by: jenkins
Reviewed-by: Stian Skjelstad <stian@nixia.no>
I couldn't make OpenOCD to work with GDB. I was always getting this in GDB:
(gdb) target remote localhost:3333
Remote debugging using localhost:3333
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Malformed response to offset query, timeout
(gdb)
While debugging gdb remote protocol, I have seen that gdb responds with:
w ++$?#3f
And those two '+' seems to confuse the OpenOCD parser, if it sees another
'+' sign it emits the DEBUG output and sets the noack_mode to 2. The
problem is that we weren't even IN noack mode, this was set to 0 and then
it explicitly sets it to 2 and thus turning the noack mode on.
Change-Id: If267c9226e57fa83121ded09cf69829f8f0b4b93
Signed-off-by: Matej Kupljen <matej.kupljen@gmail.com>
Reviewed-on: http://openocd.zylin.com/2545
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Currently
openocd -c "echo a1; shutdown; echo a2"
outputs both "a1" and "a2" and only then shuts down. This patch fixes
it by making shutdown command throw an exception, so unless it's
caught the shutdown will behave as expected.
Change-Id: I764268b3a9046ff3e9717d04095ea0673f1d755a
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2511
Tested-by: jenkins
Reviewed-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This allows GDB to automatically switch to the thread that has
been interrupted and show you where it has stopped.
Change-Id: Icb9500dc42a61eb977e9fac55ce9503c9926bf5d
Signed-off-by: Jon Burgess <jburgess777@gmail.com>
Reviewed-on: http://openocd.zylin.com/2303
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
We always have feature names defined by string literals and the
standard guarantees static storage duration for them. Hence, there's
no need duplicating and then freeing them.
Valgrind-tested.
Change-Id: I1b77f966c548e3694141c63bd8680735f0f47505
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2028
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Introduced by 537b06a81 (free non-malloced memory).
Rewrite to use standard C string routines and make returning annex
optional since it's not currently used.
Change-Id: Idf3698a482dfeff7fa5ea1660fd89122eb80b68d
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/2023
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
commit da0d1e37 did not merge correctly, causing the build to fail.
Change-Id: I3f525054bb38b7ee29bf27309bb2e6a5bb8329c7
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/2020
Tested-by: jenkins
v4:
- changed first line of commit message
v3:
- added extra LOG_ERROR() message
v2:
- Added missing "goto error"
- free also the on extra element of features[]
In contrast to target_get_gdb_reg_list(), the list returned by
get_reg_features_list() consists of items which are itself
malloc'ed.
--> Free the list items prior freeing the list itself.
Additionally:
- gdb_generate_target_description():
o Do error handling similar as gdb_get_target_description_chunk() does.
- gdb_get_target_description_chunk()
o **features must be initialised prior an "goto error" can happen
Change-Id: Iad07824618c51084e0aa0499ee6fc96198b320f0
Signed-off-by: Christian Eggers <ceggers@gmx.de>
Reviewed-on: http://openocd.zylin.com/1917
Tested-by: jenkins
Reviewed-by: Trevor Woerner <trevor.woerner@linaro.org>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Tomas Vanek
Matthias Welwarsky
Paul Fertser
Marc Schink
Tim Newsome
Robert Foss
Karl Palsson
David Ung
Dongxue Zhang
Andreas Fritiofson
Steven Stallion
Sandeep Mistry
Peter A. Bigot
Philipp Wagner
Austin Morton
Evan Hunter
Mateusz Manowiecki
Matej Kupljen
Jon Burgess
Franck Jullien
Spencer Oliver
Christian Eggers