Debug: Add PyCortexDebug. Core and peripheral register database and decoder. (#251)
* Debug: pycortexdebug * Debug: format PyCortexMDebug source code
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|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
PyCortexMDebug
|
||||
Copyright (C) 2013 Ben Nahill <bnahill@gmail.com>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
PyCortexMDebug Copyright (C) 2013 Ben Nahill <bnahill@gmail.com>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<http://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
84
debug/PyCortexMDebug/README.md
Normal file
84
debug/PyCortexMDebug/README.md
Normal file
@ -0,0 +1,84 @@
|
||||
PyCortexMDebug
|
||||
==============
|
||||
|
||||
*A set of GDB/Python-based utilities to make life debugging ARM Cortex-M processors a bit easier*
|
||||
|
||||
It will consist of several modules which will hopefully become integrated as they evolve. Presently, there is only one:
|
||||
|
||||
## SVD
|
||||
ARM defines an SVD (System View Description) file format in its CMSIS
|
||||
standard as a means for Cortex-M-based chip manufacturers to provide a
|
||||
common description of peripherals, registers, and register fields. You
|
||||
can download SVD files for different manufacturers
|
||||
[here](http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php).
|
||||
|
||||
My implementation so far has only tested STM32 chips but should hold for others. If others are like those from ST,
|
||||
expect plenty of errors in the file. Like GPIOA having a register named GPIOB_OSPEEDR and lots of 16-bit registers
|
||||
that are listed as 32!
|
||||
|
||||
The implementation consists of two components -- An lxml-based parser module (pysvd) and a GDB file (gdb_svd).
|
||||
I haven't yet worked out a perfect workflow for this, though it's quite easy to use when
|
||||
you already tend to have a GDB initialization file for starting up OpenOCD and the like.
|
||||
However your workflow works, just make sure to, in GDB:
|
||||
|
||||
source gdb_svd.py
|
||||
svd_load [your_svd_file].svd
|
||||
|
||||
These files can be huge so it might take a second or two. Anyways, after that, you can do
|
||||
|
||||
svd
|
||||
|
||||
to list available peripherals with descriptions. Or you can do
|
||||
|
||||
svd [some_peripheral_name]
|
||||
|
||||
to see all of the registers (with their values) for a given peripheral. For more details, run
|
||||
|
||||
svd [some_peripheral_name] [some_register_name]
|
||||
|
||||
to see all of the field values with descriptions.
|
||||
|
||||
You can add format modifiers like:
|
||||
|
||||
* `svd/x` will display values in hex
|
||||
* `svd/o` will display values in octal
|
||||
* `svd/t` or `svd/b` will display values in binary
|
||||
* `svd/a` will display values in hex and try to resolve symbols from the values
|
||||
|
||||
All field values are displayed at the correct lengths as provided by the SVD files.
|
||||
Also, tab completion exists for nearly everything! When in doubt, run `svd help`.
|
||||
|
||||
### TODO
|
||||
|
||||
Enable writing to registers and individual fields
|
||||
|
||||
### Bugs
|
||||
|
||||
There are probably a few. All planning, writing, and testing of this was done in an afternoon. There may be
|
||||
some oddities in working with non-STM32 parts. I'll play with this when I start working with other
|
||||
controllers again. If something's giving you trouble, describe the problem and it shall be fixed.
|
||||
|
||||
## DWT
|
||||
The ARM Data Watchpoint and Trace Unit (DWT) offers data watchpoints and a series of gated cycle counters. For now,
|
||||
I only support the raw cycle counter but facilities are in place to make use of others. As this is independent of the
|
||||
specific device under test, commands are simple and you can configure a clock speed to get real time values from
|
||||
counters.
|
||||
|
||||
dwt configclk 48000000
|
||||
|
||||
will set the current core clock speed. Then
|
||||
|
||||
dwt cyccnt reset
|
||||
dwt cyccnt enable
|
||||
|
||||
will reset and start the cycle counter. At any point
|
||||
|
||||
dwt cycnt
|
||||
|
||||
will then indicate the number of cycles and amount of time that has passed.
|
||||
|
||||
## ITM/ETM support
|
||||
|
||||
This is not implemented yet. I want to have more complete support for some of the nicer debug and trace features
|
||||
on Cortex-M processors. Parts of this will probably be dependent on OpenOCD and possibly on specific interfaces.
|
||||
I'll try to avoid this where possible but can't make any promises.
|
0
debug/PyCortexMDebug/cmdebug/__init__.py
Normal file
0
debug/PyCortexMDebug/cmdebug/__init__.py
Normal file
152
debug/PyCortexMDebug/cmdebug/dwt_gdb.py
Normal file
152
debug/PyCortexMDebug/cmdebug/dwt_gdb.py
Normal file
@ -0,0 +1,152 @@
|
||||
#!/usr/bin/env python
|
||||
"""
|
||||
This file is part of PyCortexMDebug
|
||||
|
||||
PyCortexMDebug is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
PyCortexMDebug is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
|
||||
"""
|
||||
|
||||
import gdb
|
||||
import struct
|
||||
|
||||
DWT_CTRL = 0xE0001000
|
||||
DWT_CYCCNT = 0xE0001004
|
||||
DWT_CPICNT = 0xE0001008
|
||||
DWT_EXTCNT = 0xE000100C
|
||||
DWT_SLEEPCNT = 0xE0001010
|
||||
DWT_LSUCNT = 0xE0001014
|
||||
DWT_FOLDCNT = 0xE0001018
|
||||
DWT_PCSR = 0xE000101C
|
||||
|
||||
prefix = "dwt : "
|
||||
|
||||
|
||||
class DWT(gdb.Command):
|
||||
clk = None
|
||||
is_init = False
|
||||
|
||||
def __init__(self):
|
||||
gdb.Command.__init__(self, "dwt", gdb.COMMAND_DATA)
|
||||
|
||||
def read(self, address, bits=32):
|
||||
"""Read from memory (using print) and return an integer"""
|
||||
value = gdb.selected_inferior().read_memory(address, bits / 8)
|
||||
return struct.unpack_from("<i", value)[0]
|
||||
|
||||
def write(self, address, value, bits=32):
|
||||
"""Set a value in memory"""
|
||||
gdb.selected_inferior().write_memory(address, bytes(value), bits / 8)
|
||||
|
||||
def invoke(self, args, from_tty):
|
||||
if not self.is_init:
|
||||
self.write(0xE000EDFC, self.read(0xE000EDFC) | (1 << 24))
|
||||
self.write(DWT_CTRL, 0)
|
||||
self.is_init = True
|
||||
|
||||
s = map(lambda x: x.lower(), str(args).split(" "))
|
||||
# Check for empty command
|
||||
if s[0] in ["", "help"]:
|
||||
self.print_help()
|
||||
return ()
|
||||
|
||||
if s[0] == "cyccnt":
|
||||
if len(s) > 1:
|
||||
if s[1][:2] == "en":
|
||||
self.cyccnt_en()
|
||||
elif s[1][0] == "r":
|
||||
self.cyccnt_reset()
|
||||
elif s[1][0] == "d":
|
||||
self.cyccnt_dis()
|
||||
gdb.write(
|
||||
prefix
|
||||
+ "CYCCNT ({}): ".format("ON" if (self.read(DWT_CTRL) & 1) else "OFF")
|
||||
+ self.cycles_str(self.read(DWT_CYCCNT))
|
||||
)
|
||||
elif s[0] == "reset":
|
||||
if len(s) > 1:
|
||||
if s[1] == "cyccnt":
|
||||
self.cyccnt_reset()
|
||||
gdb.write(prefix + "CYCCNT reset\n")
|
||||
if s[1] == "counters":
|
||||
self.cyccnt_reset()
|
||||
gdb.write(prefix + "CYCCNT reset\n")
|
||||
else:
|
||||
self.cyccnt_reset()
|
||||
gdb.write(prefix + "CYCCNT reset\n")
|
||||
else:
|
||||
# Reset everything
|
||||
self.cyccnt_reset()
|
||||
gdb.write(prefix + "CYCCNT reset\n")
|
||||
elif s[0] == "configclk":
|
||||
if len(s) == 2:
|
||||
try:
|
||||
self.clk = float(s[1])
|
||||
except:
|
||||
self.print_help()
|
||||
else:
|
||||
self.print_help()
|
||||
else:
|
||||
# Try to figure out what stupid went on here
|
||||
gdb.write(args)
|
||||
self.print_help()
|
||||
|
||||
def complete(self, text, word):
|
||||
text = str(text).lower()
|
||||
s = text.split(" ")
|
||||
|
||||
commands = ["configclk", "reset", "cyccnt"]
|
||||
reset_commands = ["counters", "cyccnt"]
|
||||
cyccnt_commands = ["enable", "reset", "disable"]
|
||||
|
||||
if len(s) == 1:
|
||||
return filter(lambda x: x.startswith(s[0]), commands)
|
||||
|
||||
if len(s) == 2:
|
||||
if s[0] == "reset":
|
||||
return filter(lambda x: x.startswith(s[1]), reset_commands)
|
||||
if s[0] == "cyccnt":
|
||||
return filter(lambda x: x.startswith(s[1]), cyccnt_commands)
|
||||
|
||||
def cycles_str(self, cycles):
|
||||
if self.clk:
|
||||
return "%d cycles, %.3es\n" % (cycles, cycles * 1.0 / self.clk)
|
||||
else:
|
||||
return "%d cycles"
|
||||
|
||||
def cyccnt_en(self):
|
||||
self.write(DWT_CTRL, self.read(DWT_CTRL) | 1)
|
||||
|
||||
def cyccnt_dis(self):
|
||||
self.write(DWT_CTRL, self.read(DWT_CTRL) & 0xFFFFFFFE)
|
||||
|
||||
def cyccnt_reset(self, value=0):
|
||||
self.write(DWT_CYCCNT, value)
|
||||
|
||||
def cpicnt_reset(self, value=0):
|
||||
self.write(DWT_CPICNT, value & 0xFF)
|
||||
|
||||
def print_help(self):
|
||||
gdb.write("Usage:\n")
|
||||
gdb.write("=========\n")
|
||||
gdb.write("dwt:\n")
|
||||
gdb.write("\tList available peripherals\n")
|
||||
gdb.write("dwt configclk [Hz]:\n")
|
||||
gdb.write("\tSet clock for rendering time values in seconds\n")
|
||||
gdb.write("dwt reset:\n")
|
||||
gdb.write("\tReset everything in DWT\n")
|
||||
gdb.write("dwt reset counters:\n")
|
||||
gdb.write("\tReset all DWT counters\n")
|
||||
gdb.write("dwt cyccnt\n")
|
||||
gdb.write("\tDisplay the cycle count\n")
|
||||
gdb.write("\td(default):decimal, x: hex, o: octal, b: binary\n")
|
||||
return ()
|
288
debug/PyCortexMDebug/cmdebug/svd.py
Executable file
288
debug/PyCortexMDebug/cmdebug/svd.py
Executable file
@ -0,0 +1,288 @@
|
||||
"""
|
||||
This file is part of PyCortexMDebug
|
||||
|
||||
PyCortexMDebug is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
PyCortexMDebug is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
|
||||
"""
|
||||
|
||||
|
||||
import lxml.objectify as objectify
|
||||
import sys
|
||||
from copy import deepcopy
|
||||
from collections import OrderedDict
|
||||
import os
|
||||
import traceback
|
||||
|
||||
|
||||
class SVDNonFatalError(Exception):
|
||||
"""Exception class for non-fatal errors
|
||||
So far, these have related to quirks in some vendor SVD files which are reasonable to ignore
|
||||
"""
|
||||
|
||||
def __init__(self, m):
|
||||
self.m = m
|
||||
self.exc_info = sys.exc_info()
|
||||
|
||||
def __str__(self):
|
||||
s = "Non-fatal: {}".format(self.m)
|
||||
s += "\n" + str("".join(traceback.format_exc())).strip()
|
||||
return s
|
||||
|
||||
|
||||
class SVDFile:
|
||||
def __init__(self, fname):
|
||||
f = objectify.parse(os.path.expanduser(fname))
|
||||
root = f.getroot()
|
||||
periph = root.peripherals.getchildren()
|
||||
self.peripherals = OrderedDict()
|
||||
# XML elements
|
||||
for p in periph:
|
||||
try:
|
||||
self.peripherals[str(p.name)] = SVDPeripheral(p, self)
|
||||
except SVDNonFatalError as e:
|
||||
print(e)
|
||||
|
||||
|
||||
def add_register(parent, node):
|
||||
if hasattr(node, "dim"):
|
||||
dim = int(str(node.dim), 0)
|
||||
# dimension is not used, number of split indexes should be same
|
||||
incr = int(str(node.dimIncrement), 0)
|
||||
default_dim_index = ",".join((str(i) for i in range(dim)))
|
||||
dim_index = str(getattr(node, "dimIndex", default_dim_index))
|
||||
indexes = dim_index.split(",")
|
||||
offset = 0
|
||||
for i in indexes:
|
||||
name = str(node.name) % i
|
||||
reg = SVDPeripheralRegister(node, parent)
|
||||
reg.name = name
|
||||
reg.offset += offset
|
||||
parent.registers[name] = reg
|
||||
offset += incr
|
||||
else:
|
||||
try:
|
||||
parent.registers[str(node.name)] = SVDPeripheralRegister(node, parent)
|
||||
except:
|
||||
pass
|
||||
|
||||
|
||||
def add_cluster(parent, node):
|
||||
if hasattr(node, "dim"):
|
||||
dim = int(str(node.dim), 0)
|
||||
# dimension is not used, number of split indexes should be same
|
||||
incr = int(str(node.dimIncrement), 0)
|
||||
default_dim_index = ",".join((str(i) for i in range(dim)))
|
||||
dim_index = str(getattr(node, "dimIndex", default_dim_index))
|
||||
indexes = dim_index.split(",")
|
||||
offset = 0
|
||||
for i in indexes:
|
||||
name = str(node.name) % i
|
||||
cluster = SVDRegisterCluster(node, parent)
|
||||
cluster.name = name
|
||||
cluster.address_offset += offset
|
||||
cluster.base_address += offset
|
||||
parent.clusters[name] = cluster
|
||||
offset += incr
|
||||
else:
|
||||
try:
|
||||
parent.clusters[str(node.name)] = SVDRegisterCluster(node, parent)
|
||||
except SVDNonFatalError as e:
|
||||
print(e)
|
||||
|
||||
|
||||
class SVDRegisterCluster:
|
||||
def __init__(self, svd_elem, parent):
|
||||
self.parent = parent
|
||||
self.address_offset = int(str(svd_elem.addressOffset), 0)
|
||||
self.base_address = self.address_offset + parent.base_address
|
||||
# This doesn't inherit registers from anything
|
||||
children = svd_elem.getchildren()
|
||||
self.description = str(svd_elem.description)
|
||||
self.name = str(svd_elem.name)
|
||||
self.registers = OrderedDict()
|
||||
self.clusters = OrderedDict()
|
||||
for r in children:
|
||||
if r.tag == "register":
|
||||
add_register(self, r)
|
||||
|
||||
def refactor_parent(self, parent):
|
||||
self.parent = parent
|
||||
self.base_address = parent.base_address + self.address_offset
|
||||
try:
|
||||
values = self.registers.itervalues()
|
||||
except AttributeError:
|
||||
values = self.registers.values()
|
||||
for r in values:
|
||||
r.refactor_parent(self)
|
||||
|
||||
def __unicode__(self):
|
||||
return str(self.name)
|
||||
|
||||
|
||||
class SVDPeripheral:
|
||||
def __init__(self, svd_elem, parent):
|
||||
self.parent = parent
|
||||
if not hasattr(svd_elem, "baseAddress"):
|
||||
raise SVDNonFatalError("Periph without base address")
|
||||
self.base_address = int(str(svd_elem.baseAddress), 0)
|
||||
if "derivedFrom" in svd_elem.attrib:
|
||||
derived_from = svd_elem.attrib["derivedFrom"]
|
||||
try:
|
||||
self.name = str(svd_elem.name)
|
||||
except:
|
||||
self.name = parent.peripherals[derived_from].name
|
||||
try:
|
||||
self.description = str(svd_elem.description)
|
||||
except:
|
||||
self.description = parent.peripherals[derived_from].description
|
||||
self.registers = deepcopy(parent.peripherals[derived_from].registers)
|
||||
self.clusters = deepcopy(parent.peripherals[derived_from].clusters)
|
||||
self.refactor_parent(parent)
|
||||
else:
|
||||
# This doesn't inherit registers from anything
|
||||
registers = svd_elem.registers.getchildren()
|
||||
self.description = str(svd_elem.description)
|
||||
self.name = str(svd_elem.name)
|
||||
self.registers = OrderedDict()
|
||||
self.clusters = OrderedDict()
|
||||
for r in registers:
|
||||
if r.tag == "cluster":
|
||||
add_cluster(self, r)
|
||||
else:
|
||||
add_register(self, r)
|
||||
|
||||
def refactor_parent(self, parent):
|
||||
self.parent = parent
|
||||
try:
|
||||
values = self.registers.itervalues()
|
||||
except AttributeError:
|
||||
values = self.registers.values()
|
||||
for r in values:
|
||||
r.refactor_parent(self)
|
||||
try:
|
||||
for c in self.clusters.itervalues():
|
||||
c.refactor_parent(self)
|
||||
except AttributeError:
|
||||
for c in self.clusters.values():
|
||||
c.refactor_parent(self)
|
||||
|
||||
def __unicode__(self):
|
||||
return str(self.name)
|
||||
|
||||
|
||||
class SVDPeripheralRegister:
|
||||
def __init__(self, svd_elem, parent):
|
||||
self.parent = parent
|
||||
self.name = str(svd_elem.name)
|
||||
self.description = str(svd_elem.description)
|
||||
self.offset = int(str(svd_elem.addressOffset), 0)
|
||||
try:
|
||||
self.access = str(svd_elem.access)
|
||||
except:
|
||||
self.access = "read-write"
|
||||
try:
|
||||
self.size = int(str(svd_elem.size), 0)
|
||||
except:
|
||||
self.size = 0x20
|
||||
self.fields = OrderedDict()
|
||||
if hasattr(svd_elem, "fields"):
|
||||
fields = svd_elem.fields.getchildren()
|
||||
for f in fields:
|
||||
self.fields[str(f.name)] = SVDPeripheralRegisterField(f, self)
|
||||
|
||||
def refactor_parent(self, parent):
|
||||
self.parent = parent
|
||||
try:
|
||||
fields = self.fields.itervalues()
|
||||
except AttributeError:
|
||||
fields = self.fields.values()
|
||||
for f in fields:
|
||||
f.refactor_parent(self)
|
||||
|
||||
def address(self):
|
||||
return self.parent.base_address + self.offset
|
||||
|
||||
def readable(self):
|
||||
return self.access in ["read-only", "read-write", "read-writeOnce"]
|
||||
|
||||
def writable(self):
|
||||
return self.access in [
|
||||
"write-only",
|
||||
"read-write",
|
||||
"writeOnce",
|
||||
"read-writeOnce",
|
||||
]
|
||||
|
||||
def __unicode__(self):
|
||||
return str(self.name)
|
||||
|
||||
|
||||
class SVDPeripheralRegisterField:
|
||||
def __init__(self, svd_elem, parent):
|
||||
self.parent = parent
|
||||
self.name = str(svd_elem.name)
|
||||
self.description = str(getattr(svd_elem, "description", ""))
|
||||
|
||||
try:
|
||||
self.offset = int(str(svd_elem.bitOffset))
|
||||
self.width = int(str(svd_elem.bitWidth))
|
||||
except:
|
||||
try:
|
||||
bitrange = list(
|
||||
map(int, str(svd_elem.bitRange).strip()[1:-1].split(":"))
|
||||
)
|
||||
self.offset = bitrange[1]
|
||||
self.width = 1 + bitrange[0] - bitrange[1]
|
||||
except:
|
||||
lsb = int(str(svd_elem.lsb))
|
||||
msb = int(str(svd_elem.msb))
|
||||
self.offset = lsb
|
||||
self.width = 1 + msb - lsb
|
||||
self.access = str(getattr(svd_elem, "access", parent.access))
|
||||
self.enum = {}
|
||||
|
||||
if hasattr(svd_elem, "enumeratedValues"):
|
||||
for v in svd_elem.enumeratedValues.getchildren():
|
||||
if v.tag == "name":
|
||||
continue
|
||||
# Some Kinetis parts have values with # instead of 0x...
|
||||
value = str(v.value).replace("#", "0x")
|
||||
self.enum[int(value, 0)] = (str(v.name), str(v.description))
|
||||
|
||||
def refactor_parent(self, parent):
|
||||
self.parent = parent
|
||||
|
||||
def readable(self):
|
||||
return self.access in ["read-only", "read-write", "read-writeOnce"]
|
||||
|
||||
def writable(self):
|
||||
return self.access in [
|
||||
"write-only",
|
||||
"read-write",
|
||||
"writeOnce",
|
||||
"read-writeOnce",
|
||||
]
|
||||
|
||||
def __unicode__(self):
|
||||
return str(self.name)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
for f in sys.argv[1:]:
|
||||
print("Testing file: {}".format(f))
|
||||
svd = SVDFile(f)
|
||||
print(svd.peripherals)
|
||||
key = list(svd.peripherals)[0]
|
||||
print("Registers in peripheral '{}':".format(key))
|
||||
print(svd.peripherals[key].registers)
|
||||
print("Done testing file: {}".format(f))
|
482
debug/PyCortexMDebug/cmdebug/svd_gdb.py
Normal file
482
debug/PyCortexMDebug/cmdebug/svd_gdb.py
Normal file
@ -0,0 +1,482 @@
|
||||
#!/usr/bin/env python
|
||||
"""
|
||||
This file is part of PyCortexMDebug
|
||||
|
||||
PyCortexMDebug is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
PyCortexMDebug is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
|
||||
"""
|
||||
|
||||
import binascii
|
||||
import gdb
|
||||
import re
|
||||
import math
|
||||
import sys
|
||||
import struct
|
||||
import pkg_resources
|
||||
|
||||
sys.path.append(".")
|
||||
from cmdebug.svd import SVDFile
|
||||
|
||||
# from svd_test import *
|
||||
|
||||
BITS_TO_UNPACK_FORMAT = {
|
||||
8: "B",
|
||||
16: "H",
|
||||
32: "I",
|
||||
}
|
||||
|
||||
|
||||
class LoadSVD(gdb.Command):
|
||||
"""A command to load an SVD file and to create the command for inspecting
|
||||
that object
|
||||
"""
|
||||
|
||||
def __init__(self):
|
||||
self.vendors = {}
|
||||
try:
|
||||
vendor_names = pkg_resources.resource_listdir("cmsis_svd", "data")
|
||||
for vendor in vendor_names:
|
||||
fnames = pkg_resources.resource_listdir(
|
||||
"cmsis_svd", "data/{}".format(vendor)
|
||||
)
|
||||
self.vendors[vendor] = [
|
||||
fname for fname in fnames if fname.lower().endswith(".svd")
|
||||
]
|
||||
except:
|
||||
pass
|
||||
|
||||
if len(self.vendors) > 0:
|
||||
gdb.Command.__init__(self, "svd_load", gdb.COMMAND_USER)
|
||||
else:
|
||||
gdb.Command.__init__(
|
||||
self, "svd_load", gdb.COMMAND_DATA, gdb.COMPLETE_FILENAME
|
||||
)
|
||||
|
||||
def complete(self, text, word):
|
||||
args = gdb.string_to_argv(text)
|
||||
num_args = len(args)
|
||||
if text.endswith(" "):
|
||||
num_args += 1
|
||||
if not text:
|
||||
num_args = 1
|
||||
|
||||
# "svd_load <tab>" or "svd_load ST<tab>"
|
||||
if num_args == 1:
|
||||
prefix = word.lower()
|
||||
return [
|
||||
vendor for vendor in self.vendors if vendor.lower().startswith(prefix)
|
||||
]
|
||||
# "svd_load STMicro<tab>" or "svd_load STMicro STM32F1<tab>"
|
||||
elif num_args == 2 and args[0] in self.vendors:
|
||||
prefix = word.lower()
|
||||
filenames = self.vendors[args[0]]
|
||||
return [fname for fname in filenames if fname.lower().startswith(prefix)]
|
||||
return gdb.COMPLETE_NONE
|
||||
|
||||
def invoke(self, args, from_tty):
|
||||
args = gdb.string_to_argv(args)
|
||||
argc = len(args)
|
||||
if argc == 1:
|
||||
gdb.write("Loading SVD file {}...\n".format(args[0]))
|
||||
f = args[0]
|
||||
elif argc == 2:
|
||||
gdb.write("Loading SVD file {}/{}...\n".format(args[0], args[1]))
|
||||
f = pkg_resources.resource_filename(
|
||||
"cmsis_svd", "data/{}/{}".format(args[0], args[1])
|
||||
)
|
||||
else:
|
||||
raise gdb.GdbError(
|
||||
"Usage: svd_load <vendor> <device.svd> or svd_load <path/to/filename.svd>\n"
|
||||
)
|
||||
try:
|
||||
SVD(SVDFile(f))
|
||||
except Exception as e:
|
||||
raise gdb.GdbError("Could not load SVD file {} : {}...\n".format(f, e))
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
# This will also get executed by GDB
|
||||
|
||||
# Create just the svd_load command
|
||||
LoadSVD()
|
||||
|
||||
|
||||
class SVD(gdb.Command):
|
||||
"""The CMSIS SVD (System View Description) inspector command
|
||||
|
||||
This allows easy access to all peripheral registers supported by the system
|
||||
in the GDB debug environment
|
||||
"""
|
||||
|
||||
def __init__(self, svd_file):
|
||||
gdb.Command.__init__(self, "svd", gdb.COMMAND_DATA)
|
||||
self.svd_file = svd_file
|
||||
|
||||
def _print_registers(self, container_name, form, registers):
|
||||
if len(registers) == 0:
|
||||
return
|
||||
try:
|
||||
regs_iter = registers.itervalues()
|
||||
except AttributeError:
|
||||
regs_iter = registers.values()
|
||||
gdb.write("Registers in %s:\n" % container_name)
|
||||
regList = []
|
||||
for r in regs_iter:
|
||||
if r.readable():
|
||||
data = self.read(r.address(), r.size)
|
||||
data = self.format(data, form, r.size)
|
||||
if form == "a":
|
||||
data += (
|
||||
" <"
|
||||
+ re.sub(
|
||||
r"\s+",
|
||||
" ",
|
||||
gdb.execute(
|
||||
"info symbol {}".format(data), True, True
|
||||
).strip(),
|
||||
)
|
||||
+ ">"
|
||||
)
|
||||
else:
|
||||
data = "(not readable)"
|
||||
desc = re.sub(r"\s+", " ", r.description)
|
||||
regList.append((r.name, data, desc))
|
||||
|
||||
column1Width = max(len(reg[0]) for reg in regList) + 2 # padding
|
||||
column2Width = max(len(reg[1]) for reg in regList)
|
||||
for reg in regList:
|
||||
gdb.write(
|
||||
"\t{}:{}{}".format(
|
||||
reg[0],
|
||||
"".ljust(column1Width - len(reg[0])),
|
||||
reg[1].rjust(column2Width),
|
||||
)
|
||||
)
|
||||
if reg[2] != reg[0]:
|
||||
gdb.write(" {}".format(reg[2]))
|
||||
gdb.write("\n")
|
||||
|
||||
def _print_register_fields(self, container_name, form, register):
|
||||
gdb.write("Fields in {}:\n".format(container_name))
|
||||
fields = register.fields
|
||||
if not register.readable():
|
||||
data = 0
|
||||
else:
|
||||
data = self.read(register.address(), register.size)
|
||||
fieldList = []
|
||||
try:
|
||||
fields_iter = fields.itervalues()
|
||||
except AttributeError:
|
||||
fields_iter = fields.values()
|
||||
for f in fields_iter:
|
||||
desc = re.sub(r"\s+", " ", f.description)
|
||||
if register.readable():
|
||||
val = data >> f.offset
|
||||
val &= (1 << f.width) - 1
|
||||
if f.enum:
|
||||
if val in f.enum:
|
||||
desc = f.enum[val][1] + " - " + desc
|
||||
val = f.enum[val][0]
|
||||
else:
|
||||
val = "Invalid enum value: " + self.format(val, form, f.width)
|
||||
else:
|
||||
val = self.format(val, form, f.width)
|
||||
else:
|
||||
val = "(not readable)"
|
||||
fieldList.append((f.name, val, desc))
|
||||
|
||||
column1Width = max(len(field[0]) for field in fieldList) + 2 # padding
|
||||
column2Width = max(len(field[1]) for field in fieldList) # padding
|
||||
for field in fieldList:
|
||||
gdb.write(
|
||||
"\t{}:{}{}".format(
|
||||
field[0],
|
||||
"".ljust(column1Width - len(field[0])),
|
||||
field[1].rjust(column2Width),
|
||||
)
|
||||
)
|
||||
if field[2] != field[0]:
|
||||
gdb.write(" {}".format(field[2]))
|
||||
gdb.write("\n")
|
||||
|
||||
def invoke(self, args, from_tty):
|
||||
s = str(args).split(" ")
|
||||
form = ""
|
||||
if s[0] and s[0][0] == "/":
|
||||
if len(s[0]) == 1:
|
||||
gdb.write("Incorrect format\n")
|
||||
return
|
||||
else:
|
||||
form = s[0][1:]
|
||||
if len(s) == 1:
|
||||
return
|
||||
s = s[1:]
|
||||
|
||||
if s[0].lower() == "help":
|
||||
gdb.write("Usage:\n")
|
||||
gdb.write("=========\n")
|
||||
gdb.write("svd:\n")
|
||||
gdb.write("\tList available peripherals\n")
|
||||
gdb.write("svd [peripheral_name]:\n")
|
||||
gdb.write("\tDisplay all registers pertaining to that peripheral\n")
|
||||
gdb.write("svd [peripheral_name] [register_name]:\n")
|
||||
gdb.write("\tDisplay the fields in that register\n")
|
||||
gdb.write("svd/[format_character] ...\n")
|
||||
gdb.write("\tFormat values using that character\n")
|
||||
gdb.write("\td(default):decimal, x: hex, o: octal, b: binary\n")
|
||||
return
|
||||
|
||||
if not len(s[0]):
|
||||
gdb.write("Available Peripherals:\n")
|
||||
try:
|
||||
peripherals = self.svd_file.peripherals.itervalues()
|
||||
except AttributeError:
|
||||
peripherals = self.svd_file.peripherals.values()
|
||||
columnWidth = max(len(p.name) for p in peripherals) + 2 # padding
|
||||
try:
|
||||
peripherals = self.svd_file.peripherals.itervalues()
|
||||
except AttributeError:
|
||||
peripherals = self.svd_file.peripherals.values()
|
||||
for p in peripherals:
|
||||
desc = re.sub(r"\s+", " ", p.description)
|
||||
gdb.write(
|
||||
"\t{}:{}{}\n".format(
|
||||
p.name, "".ljust(columnWidth - len(p.name)), desc
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
registers = None
|
||||
if len(s) >= 1:
|
||||
peripheral_name = s[0]
|
||||
if peripheral_name not in self.svd_file.peripherals:
|
||||
gdb.write("Peripheral {} does not exist!\n".format(s[0]))
|
||||
return
|
||||
|
||||
peripheral = self.svd_file.peripherals[peripheral_name]
|
||||
|
||||
if len(s) == 1:
|
||||
self._print_registers(s[0], form, peripheral.registers)
|
||||
if len(peripheral.clusters) > 0:
|
||||
try:
|
||||
clusters_iter = peripheral.clusters.itervalues()
|
||||
except AttributeError:
|
||||
clusters_iter = peripheral.clusters.values()
|
||||
gdb.write("Clusters in %s:\n" % peripheral_name)
|
||||
regList = []
|
||||
for r in clusters_iter:
|
||||
desc = re.sub(r"\s+", " ", r.description)
|
||||
regList.append((r.name, "", desc))
|
||||
|
||||
column1Width = max(len(reg[0]) for reg in regList) + 2 # padding
|
||||
column2Width = max(len(reg[1]) for reg in regList)
|
||||
for reg in regList:
|
||||
gdb.write(
|
||||
"\t{}:{}{}".format(
|
||||
reg[0],
|
||||
"".ljust(column1Width - len(reg[0])),
|
||||
reg[1].rjust(column2Width),
|
||||
)
|
||||
)
|
||||
if reg[2] != reg[0]:
|
||||
gdb.write(" {}".format(reg[2]))
|
||||
gdb.write("\n")
|
||||
return
|
||||
|
||||
cluster = None
|
||||
if len(s) == 2:
|
||||
container = " ".join(s[:2])
|
||||
if s[1] in peripheral.clusters:
|
||||
self._print_registers(
|
||||
container, form, peripheral.clusters[s[1]].registers
|
||||
)
|
||||
elif s[1] in peripheral.registers:
|
||||
self._print_register_fields(
|
||||
container, form, self.svd_file.peripherals[s[0]].registers[s[1]]
|
||||
)
|
||||
else:
|
||||
gdb.write(
|
||||
"Register/cluster {} in peripheral {} does not exist!\n".format(
|
||||
s[1], s[0]
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
if len(s) == 3:
|
||||
if s[1] not in peripheral.clusters:
|
||||
gdb.write(
|
||||
"Cluster {} in peripheral {} does not exist!\n".format(s[1], s[0])
|
||||
)
|
||||
elif s[2] not in peripheral.clusters[s[1]].registers:
|
||||
gdb.write(
|
||||
"Register {} in cluster {} in peripheral {} does not exist!\n".format(
|
||||
s[2], s[1], s[0]
|
||||
)
|
||||
)
|
||||
else:
|
||||
container = " ".join(s[:3])
|
||||
cluster = peripheral.clusters[s[1]]
|
||||
self._print_register_fields(container, form, cluster.registers[s[2]])
|
||||
return
|
||||
|
||||
if len(s) == 4:
|
||||
try:
|
||||
reg = self.svd_file.peripherals[s[0]].registers[s[1]]
|
||||
except KeyError:
|
||||
gdb.write(
|
||||
"Register {} in peripheral {} does not exist!\n".format(s[1], s[0])
|
||||
)
|
||||
return
|
||||
try:
|
||||
field = reg.fields[s[2]]
|
||||
except KeyError:
|
||||
gdb.write(
|
||||
"Field {} in register {} in peripheral {} does not exist!\n".format(
|
||||
s[2], s[1], s[0]
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
if not field.writable() or not reg.writable():
|
||||
gdb.write(
|
||||
"Field {} in register {} in peripheral {} is read-only!\n".format(
|
||||
s[2], s[1], s[0]
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
try:
|
||||
val = int(s[3], 0)
|
||||
except ValueError:
|
||||
gdb.write(
|
||||
"{} is not a valid number! You can prefix numbers with 0x for hex, 0b for binary, or any python int literal\n".format(
|
||||
s[3]
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
if val >= 1 << field.width or val < 0:
|
||||
gdb.write(
|
||||
"{} not a valid number for a field with width {}!\n".format(
|
||||
val, field.width
|
||||
)
|
||||
)
|
||||
return
|
||||
|
||||
if not reg.readable():
|
||||
data = 0
|
||||
else:
|
||||
data = self.read(reg.address(), reg.size)
|
||||
data &= ~(((1 << field.width) - 1) << field.offset)
|
||||
data |= (val) << field.offset
|
||||
self.write(reg.address(), data, reg.size)
|
||||
return
|
||||
|
||||
gdb.write("Unknown input\n")
|
||||
|
||||
def complete(self, text, word):
|
||||
"""Perform tab-completion for the command"""
|
||||
text = str(text)
|
||||
s = text.split(" ")
|
||||
|
||||
# Deal with the possibility of a '/' parameter
|
||||
if s[0] and s[0][0] == "/":
|
||||
if len(s) > 1:
|
||||
s = s[1:]
|
||||
else:
|
||||
return
|
||||
|
||||
if len(s) == 1:
|
||||
return filter(
|
||||
lambda x: x.lower().startswith(s[0].lower()),
|
||||
self.peripheral_list() + ["help"],
|
||||
)
|
||||
|
||||
if len(s) == 2:
|
||||
reg = s[1].upper()
|
||||
if len(reg) and reg[0] == "&":
|
||||
reg = reg[1:]
|
||||
filt = filter(lambda x: x.startswith(reg), self.register_list(s[0].upper()))
|
||||
return filt
|
||||
|
||||
def read(self, address, bits=32):
|
||||
"""Read from memory and return an integer"""
|
||||
value = gdb.selected_inferior().read_memory(address, bits / 8)
|
||||
unpack_format = "I"
|
||||
if bits in BITS_TO_UNPACK_FORMAT:
|
||||
unpack_format = BITS_TO_UNPACK_FORMAT[bits]
|
||||
# gdb.write("{:x} {}\n".format(address, binascii.hexlify(value)))
|
||||
return struct.unpack_from("<" + unpack_format, value)[0]
|
||||
|
||||
def write(self, address, data, bits=32):
|
||||
"""Write data to memory"""
|
||||
gdb.selected_inferior().write_memory(address, bytes(data), bits / 8)
|
||||
|
||||
def format(self, value, form, length=32):
|
||||
"""Format a number based on a format character and length"""
|
||||
# get current gdb radix setting
|
||||
radix = int(
|
||||
re.search("\d+", gdb.execute("show output-radix", True, True)).group(0)
|
||||
)
|
||||
|
||||
# override it if asked to
|
||||
if form == "x" or form == "a":
|
||||
radix = 16
|
||||
elif form == "o":
|
||||
radix = 8
|
||||
elif form == "b" or form == "t":
|
||||
radix = 2
|
||||
|
||||
# format the output
|
||||
if radix == 16:
|
||||
# For addresses, probably best in hex too
|
||||
l = int(math.ceil(length / 4.0))
|
||||
return "0x" + "{:X}".format(value).zfill(l)
|
||||
if radix == 8:
|
||||
l = int(math.ceil(length / 3.0))
|
||||
return "0" + "{:o}".format(value).zfill(l)
|
||||
if radix == 2:
|
||||
return "0b" + "{:b}".format(value).zfill(length)
|
||||
# Default: Just return in decimal
|
||||
return str(value)
|
||||
|
||||
def peripheral_list(self):
|
||||
try:
|
||||
keys = self.svd_file.peripherals.iterkeys()
|
||||
except AttributeError:
|
||||
keys = elf.svd_file.peripherals.keys()
|
||||
return list(keys)
|
||||
|
||||
def register_list(self, peripheral):
|
||||
try:
|
||||
try:
|
||||
keys = self.svd_file.peripherals[peripheral].registers.iterkeys()
|
||||
except AttributeError:
|
||||
keys = self.svd_file.peripherals[peripheral].registers.keys()
|
||||
return list(keys)
|
||||
except:
|
||||
gdb.write("Peripheral {} doesn't exist\n".format(peripheral))
|
||||
return []
|
||||
|
||||
def field_list(self, peripheral, register):
|
||||
try:
|
||||
periph = svd_file.peripherals[peripheral]
|
||||
reg = periph.registers[register]
|
||||
try:
|
||||
regs = reg.fields.iterkeys()
|
||||
except AttributeError:
|
||||
regs = reg.fields.keys()
|
||||
return list(regs)
|
||||
except:
|
||||
gdb.write("Register {} doesn't exist on {}\n".format(register, peripheral))
|
||||
return []
|
26
debug/PyCortexMDebug/scripts/gdb.py
Normal file
26
debug/PyCortexMDebug/scripts/gdb.py
Normal file
@ -0,0 +1,26 @@
|
||||
""" Simple script to load from GDB to import all components
|
||||
|
||||
===============================================================================
|
||||
|
||||
This file is part of PyCortexMDebug
|
||||
|
||||
PyCortexMDebug is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
PyCortexMDebug is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with PyCortexMDebug. If not, see <http://www.gnu.org/licenses/>.
|
||||
"""
|
||||
|
||||
|
||||
from cmdebug.svd_gdb import LoadSVD
|
||||
from cmdebug.dwt_gdb import DWT
|
||||
|
||||
DWT()
|
||||
LoadSVD()
|
62032
debug/STM32L4x6.svd
Executable file
62032
debug/STM32L4x6.svd
Executable file
File diff suppressed because it is too large
Load Diff
37004
debug/STM32WB55_CM4.svd
Executable file
37004
debug/STM32WB55_CM4.svd
Executable file
File diff suppressed because it is too large
Load Diff
@ -78,7 +78,6 @@ ASM_SOURCES += $(TARGET_DIR)/startup_stm32l476xx.s
|
||||
CFLAGS += \
|
||||
-DUSE_HAL_DRIVER \
|
||||
-DHAVE_FREERTOS \
|
||||
-DBUTON_INVERT=false \
|
||||
-DDEBUG_UART=huart1
|
||||
|
||||
ifeq ($(NO_BOOTLOADER), 1)
|
||||
@ -88,7 +87,6 @@ LDFLAGS += -T$(TARGET_DIR)/STM32L476RGTx_FLASH.ld
|
||||
endif
|
||||
|
||||
CFLAGS += \
|
||||
-I$(TARGET_DIR)/Inc \
|
||||
-I$(CUBE_DIR)/Drivers/STM32L4xx_HAL_Driver/Inc \
|
||||
-I$(CUBE_DIR)/Drivers/STM32L4xx_HAL_Driver/Inc/Legacy \
|
||||
-I$(CUBE_DIR)/Middlewares/Third_Party/FreeRTOS/Source/include \
|
||||
@ -98,7 +96,8 @@ CFLAGS += \
|
||||
-I$(CUBE_DIR)/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc \
|
||||
-I$(CUBE_DIR)/Drivers/CMSIS/Device/ST/STM32L4xx/Include \
|
||||
-I$(CUBE_DIR)/Drivers/CMSIS/Include \
|
||||
-I$(CUBE_DIR)/Drivers/CMSIS/Include \
|
||||
-I$(TARGET_DIR)/Inc \
|
||||
-I$(TARGET_DIR)/Src/fatfs \
|
||||
-I$(TARGET_DIR)/api-hal
|
||||
|
||||
SVD_FILE = ../debug/STM32L4x6.svd
|
||||
|
@ -81,7 +81,6 @@ ASM_SOURCES += $(TARGET_DIR)/startup_stm32wb55xx_cm4.s
|
||||
CFLAGS += \
|
||||
-DUSE_HAL_DRIVER \
|
||||
-DHAVE_FREERTOS \
|
||||
-DBUTON_INVERT=true \
|
||||
-DDEBUG_UART=huart1
|
||||
|
||||
ifeq ($(NO_BOOTLOADER), 1)
|
||||
@ -104,3 +103,4 @@ CFLAGS += \
|
||||
-I$(TARGET_DIR)/Src/fatfs \
|
||||
-I$(TARGET_DIR)/api-hal
|
||||
|
||||
SVD_FILE = ../debug/STM32WB55_CM4.svd
|
||||
|
@ -8,3 +8,4 @@ DEBUG_AGENT =
|
||||
CFLAGS =
|
||||
CPPFLAGS =
|
||||
LDFLAGS =
|
||||
SVD_FILE =
|
@ -76,6 +76,8 @@ debug: flash
|
||||
-ex "target extended-remote 127.0.0.1:3333" \
|
||||
-ex "set confirm off" \
|
||||
-ex "source ../debug/FreeRTOS/FreeRTOS.py" \
|
||||
-ex "source ../debug/PyCortexMDebug/scripts/gdb.py" \
|
||||
-ex "svd_load $(SVD_FILE)" \
|
||||
$(OBJ_DIR)/$(PROJECT).elf; \
|
||||
kill `cat $(OBJ_DIR)/agent.PID`; \
|
||||
rm $(OBJ_DIR)/agent.PID
|
||||
|
Loading…
Reference in New Issue
Block a user