It confuses users of IDEs like Eclipse, which request to read registers
that don't exist on the target.
Fixes#176
Change-Id: Ie2504140bfc70eba0d88fd763aacd87895aa20ff
When authdata_write sets the authenticated bit, examine() every OpenOCD
target that is connected to the DM that we were authenticated to.
Change-Id: I542a1e141e2bd23d085e507069a6767e66a196cd
They can be used to authenticate to a Debug Module.
There's a bit of a chicken and egg problem here, because the RISCV
commands aren't available until the target is initialized, but
initialization involves examine(), which can't interact with the target
until authentication has happened. So to use this you run `init`, which
will print out an error, and then run the `riscv authdata_read` and
`riscv authdata_write` commands. When authdata_write() notices that the
authenticated bit went high, it will call examine() again.
Example usage (very simple challenge-response protocol):
```
init
set challenge [ocd_riscv authdata_read]
riscv authdata_write [expr $challenge + 1]
reset halt
```
Change-Id: Id9ead00a7eca111e5ec879c4af4586c30af51f4d
... by disabling all triggers, single stepping, enabling them, and then
resuming as usual. Without this change, you'd just be stuck on an
address trigger and would have to manually disable it.
Change-Id: I5834984671baa6b64f72e533c4aa94555c64617e
Fixed abstract register access for registers that aren't XLEN wide.
Avoided excessive errors cases where we attempted to execute a fence but
failed.
Don't mark all the CSRs as caller-save. gdb was saving/restoring
dscratch, which broke function calls as a side effect. dscratch is
accessible for people who really know what they're doing, but gdb should
never quietly access it. The same is probably true for other CSRs.
Change-Id: I7bcdbbcb7e3c22ad92cbc205bf537c1fe548b160
It's not tested because spike never reports any busy errors since every
access happens instantaneously.
Change-Id: If43ea233a99f98cd419701dc98f0f4a62aa866eb
Make all configs specify same JTAG and SWD GPIO numbers.
Change-Id: I65b09c1671c97f253f0aab88e511de7409d91e0a
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3932
Tested-by: jenkins
Clang static analyzer says that in certain cases "Assigned value is
garbage or undefined" there.
Change-Id: Ib35a4cf7a553ba9461270a0dc4c4b9b205091e73
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4338
Tested-by: jenkins
This fixes parsing of several documentation files which do not have
dot in the filename.
style.txt change fixes doxygen warnings and ensures proper display of
comment begin/end instructions in HTML.
Tested with Doxygen 1.8.13.
Change-Id: I9fd9ac3b51b47076b8fdbd3e93b90c3eba9b9631
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4342
Tested-by: jenkins
scan-build reported a couple of problems with code in aarch64.c,
this patch cleans them up. No functional changes.
Change-Id: Ie210237ddc840a8bbcd535f86a3a5faf473132f2
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4346
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This patch should make the code logic more transparent and user
notifications more useful.
It also fixes a warning "array subscript is below array bounds" that
leads to FTBFS on Raspbian GNU/Linux 8 (jessie).
Change-Id: I626b6a5bc013dfee7d36cf196f0abab981d30675
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3931
Tested-by: jenkins
Previously for every bit scanned OpenOCD would write the bit, wait for
that bit to be scanned, and then read the result. This involves at least
2 context switches. Most of the time the next bit scanned does not
depend on the last bit we read, so with a buffer we now write a bunch of
bits to be scanned all at once, and then we wait for them all to be
scanned and have a result.
This reduces the time for one testcase where OpenOCD connects to a
simulator from 12.30s to 5.35s!
Running all our tests went from 13m13s to 3m55s.
Change-Id: Ie9fcea043ac1d7877a521125334ed47d4b3e1615
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4312
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Some of these changes actually fix broken comparisons which could
occasionally fail. Others just clean up the code and make it more clear.
Change-Id: I6c398bdc45fa0d2716f48a74822457d1351f81a5
Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4380
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Change-Id: Id75727a150912ff778a4fa32ad56467da33a6324
Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/4379
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Some parts have only that much. Reported by robertfoos_ on IRC.
Change-Id: I684fdccfa62cf726466ddc467543a990fd88c4dc
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4369
Reviewed-by: Robert Foss <robert.foss@memcpy.io>
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested on FRDM-K28F. Thanks to Thomas Varghese for donating the kit.
Change-Id: Idcdd8bcf992acebd19e5335f7f833356500c45dd
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4255
Tested-by: jenkins
Reviewed-by: Joakim Nohlgård <joakim.nohlgard@eistec.se>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Tim Newsome
Kaspar Schleiser
Gleb Gagarin
Gleb Gagarin
Tomas Vanek
Paul Fertser
Matthias Welwarsky
Daniel Kucera
Christopher Head