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From upstream #947

Merged
merged 50 commits into from
Nov 3, 2023
Merged

From upstream #947

merged 50 commits into from
Nov 3, 2023

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timsifive
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Merge commit '9f23a1d7c1e27c556ef9787b9d3f263f5c1ecf24' into from_upstream

borneoa and others added 30 commits May 18, 2023 10:09
The static analyser 'sparse' complains, while compiling a jtag
driver, that the struct adapter_driver is declared in the file as
non static, but it is not exposed through an include file.
The message is:
	warning: symbol 'XXX' was not declared. Should it be static?

Move the list of adapter_driver's declaration in interface.h
Drop the preprocessor #ifdef/#endif around the declaration, as it
has no effect when the declaration is not used and/or the symbol
does not exist.

Change-Id: I5b8f5fe48a89ff0ffce38d547c551cd196379fbf
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7665
Tested-by: jenkins
Don't use 'extern' in a C file, but declare the exported function
in a H file.
This helps validating the function prototype across declaration
and use.

Detected through 'sparse' tool.

Change-Id: I2c22b084fb513f4b3b1b1db96dfbc8fa4bfe7238
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7666
Tested-by: jenkins
The static analyser 'sparse' complains that the functions
clear_malloc() and fill_malloc() are defined global but not cross
checked against a prototype in an include file.

Rework replacements.h and replacements.c to let the former be
included by the latter.

Change-Id: I536393a9c3718dcd7e144cde8f02e169f64c88e0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7667
Tested-by: jenkins
The new committed files add some warning from the static analyser
'sparse':
- Don't assign pointer to 0, use NULL.
- switch with no cases.

Fix them.

Change-Id: I2c02d629bd80b71c8e42553be5d9388bb9b6bcd0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7668
Tested-by: jenkins
Don't assign pointer to 0, use NULL.

Detected through 'sparse' tool.

Change-Id: I34551112ddab9dedf8537c8111d32356c170e7d5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7669
Tested-by: jenkins
The static analyser 'sparse' complains about values bigger that
255 that gets cast-ed and/or stored in an 8 bit variable.

Rework the functions:
- h_u32_to_le()
- h_u32_to_be()
- h_u24_to_le()
- h_u24_to_be()
- h_u16_to_le()
- h_u16_to_be()
to avoid all the related warnings, without adding any functional
change. Any modern compiler should not be impacted by this.

Change-Id: I0b84043600a41c72d0e4ddb3dd195d69e3b2896b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7670
Tested-by: jenkins
Let source file to include its file .h to validate the exported
prototypes.

Detected through 'sparse' tool.

Change-Id: I6197f21c857833dafc3d6e3b750c764bf4610abd
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7671
Tested-by: jenkins
The function jtag_debug_state_machine_() is only used by a static
inline function and declared inside it as private.
The static analyser 'sparse' complains that the function is
defined as global but not cross checked against a prototype in an
include file.

Move the declaration outside the inline function so it get visible
by interface.c, which already includes interface.h
While there, change the argument type from 'unsigned' to 'unsigned
int' to pass checkpatch check.

Change-Id: Ia5dfb92dc4bc6d52ead4f0cb8c68319c83ff85b0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7672
Tested-by: jenkins
The internal variable 'gdb_actual_connections' is used by log and
by semihosting to determine if there are active GDB connections.

Keep the variable local in server's code and only export its value
through a dedicated function.

This solves the issue detected by 'parse' of the variable defined
as global but not declared in any include file.

Change-Id: I6e14f4cb1097787404094636f8a2a291340222dd
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7673
Tested-by: jenkins
The pointer nand_devices is used in two file.

Move the extern prototype in code.h

Detected through 'sparse' tool.

Change-Id: I7237359fd1a008770a624725cd0b3d8632b4166e
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7674
Tested-by: jenkins
The struct containing SWD and JTAG operations are declared as
extern in the C file.

Mode them in include file arm_adi_v5.h to silent 'sparse' error
for global variable definition without declaration in an include
file.

Change-Id: I59088512c052d5a120c38404a882ed512a68ca02
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7675
Tested-by: jenkins
The function rtos_thread_packet() is used across rtos and declared
locally as extern.

Move the prototype of the function in common include rtos.h

Change-Id: I50d311b583148a2de628de0997ef1afc9103a70e
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7677
Tested-by: jenkins
The static analyser 'sparse' complains about using sizeof() on a
struct that has variable size:
	src/rtos/uCOS-III.c:267:32: warning: using sizeof on a flexible structure
	src/rtos/uCOS-III.c:269:41: warning: using sizeof on a flexible structure
	src/rtos/uCOS-III.c:275:66: warning: using sizeof on a flexible structure
The struct ucos_iii_params contains either constants values for
different target type and variable fields. The last field is an
variable size array, always allocated to UCOS_III_MAX_THREADS
items. It's not practical to fix this size because we would get
too huge initialization in data segment.

Split away from struct ucos_iii_params all the variable fields and
put them in struct ucos_iii_private. Add in the new struct a
pointer to the selected element of ucos_iii_params_list[] and fix
the size of array threads[] to its maximum value; this would be
allocated at run-time, avoiding impacts to data segment.

Change-Id: I569011a257783d35a8795adbda06e942b4157f2a
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7678
Tested-by: jenkins
Add short example on how to run the static analyser 'sparse' on
OpenOCD code.

Change-Id: Ieba8ae926d0e02ca9e6ac619b13b0832136f82cb
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7679
Tested-by: jenkins
Commit dd9137d ("pld/virtex2: add missing error checks") adds
checks on the return value of several functions, allowing also
virtex2_read_stat() to propagate such returned values.
This triggers an error with clang, as it is now able to identify a
possible execution path that makes uninitialized the variable
status.

Check for the returned value of virtex2_read_stat() before using
the variable status and propagate the returned value.
While there, drop a useless empty string.

Change-Id: I7a23d3f904d4e07cdb6f6dfdf1179889b6b8afb8
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7657
Reviewed-by: Daniel Anselmi <danselmi@gmx.ch>
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Change-Id: Id46c2799f954fb1d4353f652ba3115796c88936d
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7422
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
Added support for TMS570LC43xx series parts.  This uses the pre-existing
ti_tms570.cfg parent config.  In ti_tms570.cfg, dbgbase was changed.
Note 1: Based on the following TI E2E post, the previous dbgbase was wrong
and the new value isn't due to a difference in parts.
Link: https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1106954/tms570ls3137-debugging-with-openocd
Note 2: Both the previous dbgbase and the one suggested in the TI E2E post
have the 2 LSB set. In the current version of OpenOCD, this will cause
cortex_a_read_cpu_memory_fast and cortex_a_write_cpu_memory_fast to fail
due to an alignment checks in
mem_ap_<read/write>_buf_noincr()->mem_ap_<read/write>().
In all other uses of dbgbase for arm cortex parts, the 2 LSB are masked
and ignored.

Change-Id: Ic936722e5a4cfc7161b0df1fe3325ee12fd901c6
Signed-off-by: Phil Kirkpatrick <p.kirkpatrick@reflexaerospace.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7682
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
The pads were configured at a wrong memory address
if /dev/gpiomem was mapped.

The pad setting registers are not accessible in mapped /dev/gpiomem,
disable the pads setting if the driver doesn't open /dev/mem.

While on it, do not fail the driver initialization if pad mapping fails
- just emit a warning and work with unchanged pad setting.

Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Change-Id: I0bce76cade8f7efd75efd9087a7d9ba6511a6239
Reviewed-on: https://review.openocd.org/c/openocd/+/7684
Tested-by: jenkins
Reviewed-by: Jonathan Bell <jonathan@raspberrypi.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Raspberry Pi 4 with 64-bit kernel and arm_peri_high=1 config.txt
parameter needs peripheral_base 0x47e000000, uint32_t is not enough.

Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Change-Id: Icedd084e2916657fa4478d452a5eb1e84a45c281
Reviewed-on: https://review.openocd.org/c/openocd/+/7685
Tested-by: jenkins
Reviewed-by: Jonathan Bell <jonathan@raspberrypi.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
The bcm2835gpio driver preferred /dev/gpiomem for access to
memory mapped GPIO control and used /dev/mem as a fallback
only if it couldn't open /dev/gpiomem.

/dev/mem usually requires elevated rights or specific capabilities
of the opening process, so the fallback failed anyway.

Although /dev/gpiomem is the strongly preferred option with respect
to security, there could be also use cases which require /dev/mem
even if /dev/gpiomem is available (e.g. changing the GPIO pad
settings is necessary or testing/debugging OpenOCD).
It was difficult to handle such cases because they required
to block globally the system device /dev/gpiomem
(remove, rename or chmod).

Drop the fallback feature and select the memory device
by 'bcm2835gpio peripheral_mem_dev' configuration command.
Use /dev/gpiomem as a default.

Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Change-Id: I60e427bda795d7a13d55d61443590dd31d694832
Reviewed-on: https://review.openocd.org/c/openocd/+/7350
Tested-by: jenkins
Reviewed-by: Jonathan Bell <jonathan@raspberrypi.com>
this new STM32 series family introduces 2 devices:
STM32C011xx (0x443) and STM32C031xx (0x453)

both devices have 32 Kbytes single flash bank.

Change-Id: I4e890789e44e3b174c0e9c0e1068383ecdbb865f
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6874
Reviewed-by: Nemui Trinomius <nemuisan_kawausogasuki@live.jp>
Tested-by: jenkins
Reviewed-by: zapb <dev@zapb.de>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
When a DMI operation does not succeed (either because of a timeout
or an error), the specification says that the error in the `op`
field is sticky and needs to cleared by writing `dmireset` in `dtmcs`.
This is already done for timeouts in increase_dmi_busy_delay
but not for errors.

Change-Id: I7c5f27a5cf145511a1a8b64a45a586521e1cbe41
Signed-off-by: Amaury Pouly <amaury.pouly@lowrisc.org>
Reviewed-on: https://review.openocd.org/c/openocd/+/7688
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Jan Matyas <jan.matyas@codasip.com>
Change-Id: I0f27e1c64972a58ac146c391761008cdca610afe
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Reviewed-on: https://review.openocd.org/c/openocd/+/7614
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
Trying to disable OTP write protection by running e.g. `flash protect
1 0 1 off` would already be rejected with an error code, but that would
result in a generic "failed setting protection for blocks 0 to 1"
message. Now a more specific error message is also printed, telling the
user why it failed.

Change-Id: I6d4974eb0bcd23a0a6cf68ff955d9e59b8b1b06a
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Reviewed-on: https://review.openocd.org/c/openocd/+/7615
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This reverts commit 047b1a8.

Commit 047b1a8 ("target/image: zero-initialize ELF segments
up to p_memsz") breaks the backward compatibility introducing some
problem:
- an empty bss segment with paddr in SRAM gets zero filled at load
  but does not survive after a reset, causing verify to fail;
- an empty bss segment with paddr in FLASH causes excessive flash
  usage, which can exceed flash size (causing error) and makes
  flash aging faster.

Revert it while looking for a better implementation.

Change-Id: Iaaf926dafce46a220a5bbe20c8576eb449996d76
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reported-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Reviewed-on: https://review.openocd.org/c/openocd/+/7658
Reviewed-by: Bohdan Tymkiv <bohdan200@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Nemui Trinomius <nemuisan_kawausogasuki@live.jp>
Reviewed-by: Peter Collingbourne <pcc@google.com>
Tested-by: jenkins
Produces traces compatible with SEGGER SystemView tool.

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: If1057309edbb91ed2cf1ebf9137c378d3deb9b88
Reviewed-on: https://review.openocd.org/c/openocd/+/7606
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
The function esp32_cmd_apptrace_generic() is not used outside the
file.

Declare it as static.
Detected through 'sparse' tool.

Change-Id: I08c6b92fb01594320bc3ae6b16067ac4eb51ca12
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7676
Tested-by: jenkins
Change-Id: I8f227b219ca39f198e1e39847ddd36bb9880a328
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7560
Tested-by: jenkins
While there, add the missing .usage field and remove the now
unused function jim_target_tap_disabled().

Change-Id: I79afcc5097643fc264354c6c3957786a55f40498
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7561
Tested-by: jenkins
Change the prototype of functions:
- target_run_algorithm()
- target_wait_algorithm()
- target_wait_state()
- struct target_type::run_algorithm()
- struct target_type::wait_algorithm()
to use unsigned int for timeout_ms instead of int.
Change accordingly the variables passed as parameter.

Change-Id: I0b8d6e691bb3c749eeb2911dc5a86c38cc0cb65d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7562
Tested-by: jenkins
borneoa and others added 20 commits May 27, 2023 06:42
While there:
- fix memory leak in case of error on values tap->chip,
  tap->tapname, tap->expected_ids;
- check for out of memory error;
- fix minor coding style issue;
- add the missing .usage field;
- remove functions not in use anymore.

Change-Id: I1c8c3ffeb324e9eacb919c7e0d94fd72122c9a81
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7431
Tested-by: jenkins
The function is used for commands:
- jtag tapisenabled
- jtag tapenable
- jtag tapdisable

While there, add the missing .help and .usage fields and fix the
incorrect check in jtag_tap_enable() and jtag_tap_disable().

Change-Id: I0e1c9f0b8d9fbad19d09610a97498bec8003c27e
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7554
Tested-by: jenkins
Removed an unused include from src/jtag/adapter.c.

Signed-off-by: Jan Matyas <jan.matyas@codasip.com>
Change-Id: Ia5ea0acdfa1c011d7c88decd0f63e8032aafd699
Reviewed-on: https://review.openocd.org/c/openocd/+/7687
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
- Manual integration of File-IO support from xt0.2 release
- Verified with applications linked using gdbio LSP
- No new clang static analysis warnings

Signed-off-by: Ian Thompson <ianst@cadence.com>
Change-Id: Iedc5f885b2548097ef4f11ae1a675b5944f5fdf0
Reviewed-on: https://review.openocd.org/c/openocd/+/7550
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Change-Id: I6b9d90265ca5112b9ab2aae97bb4c6cf3ebc4112
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7432
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
The registers pauth_dmask and pauth_cmask are not accessible in
AARCH32 mode. Tagging them as 'hidden' is not enough and triggers
error:
	Failed to read pauth_dmask register
while halting the core.

Tag the pauth registers as not existing, unless required by user.

Note: for non existing registers there should be no need to
      allocate their register cache. Let's keep this for a further
      improvement.

Change-Id: Iaa0d006a3d8ee611ee93333ed49a8615a6c94276
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: d0436b0 ("armv8: Add support of pointer authentication")
Reviewed-on: https://review.openocd.org/c/openocd/+/7712
Tested-by: jenkins
Reviewed-by: Koudai Iwahori <koudai@google.com>
Value in the 'dscsr' variable is garbage until the DAP queue is run.
Postpone evaluation of the 'secure_state' variable. Reading the
core registers in between will execute the DAP queue.

Change-Id: I44959e882dbafb1b9779e813c3d13f3b3dbcd47f
Signed-off-by: Bohdan Tymkiv <bohdan200@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7693
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Clang 15.0.7 complains about snprintf output truncation due to
output between 13 and 22 bytes into a destination of size 20.

Increase the size of the buffer.

Change-Id: I0369255ca1bc02a0cf494f765e91a608c960a0d6
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7717
Tested-by: jenkins
Clang is unable to fully track the content of the array
write_buffer[] and incorrectly complains that it could contain
some uninitialized value.

To help clang to track the execution flow, rewrite the handling of
the buffer by using simpler indexing and by moving away cmd_byte
from the first buffer's element to the variable cmd_byte.

While there:
- fix the error codes returned while parsing the command line and
- use directly command_print_sameline() instead of passing through
  intermediate buffers.

Change-Id: I1969e896887ea3a4abebee057cc04c03005fa57c
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7718
Tested-by: jenkins
Change-Id: I83fe1e50821ec15e1853aca96ebb32fe1ff5328f
Signed-off-by: Dominik Wernberger <dominik.wernberger@gmx.de>
Reviewed-on: https://review.openocd.org/c/openocd/+/7690
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Initialize clocks to max speed and setup SDRAM. NAND support is still
incomplete. Originally found at:

elinux.org/index.php?title=Calao_Atmel_AT91_development_board&oldid=73933

Updated the code from 2011 and improved it a bit.

Signed-off-by: Wolfram Sang <wsa@kernel.org>
Change-Id: I83474e07c8de8cc3b5d058029551935549693ef9
Reviewed-on: https://review.openocd.org/c/openocd/+/7578
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Clang reports that 3rd function call argument is an uninitialized value
file esp32_apptrace.c line:1270

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: I73e254d4eb0c6b3152229717d8827d334784ab92
Reviewed-on: https://review.openocd.org/c/openocd/+/7719
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
This change fixes endianness support in the driver.

Change-Id: Ida360bb58e988cea0a66fdc79e1610b528846fc4
Signed-off-by: Jacek Wuwer <jacekmw8@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7721
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This change implements the predefined type tap_state instead of generic
uint8_t in the driver

Change-Id: I3478e8d7b40b961f3ba77711179016cdcc35cd32
Signed-off-by: Jacek Wuwer <jacekmw8@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7722
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
This change adds the extensa sample target and board configurations.
it removes the obsoleted vd_xtensa_jtag.cfg from targets.

Change-Id: I9d4d25abde46c0b15e5211a973012447872cb405
Signed-off-by: Jacek Wuwer <jacekmw8@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7723
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
This patch adds support for the NXP QN908x family of Bluetooth
microcontrollers, such as the QN9080. This chip features a Cortex-M4F
with 512 KiB of flash on all the available versions, although the
documentation suggests that there might be 256 kB versions as well.

The initial support allows to read, erase and write the whole user flash
area. Three new sub-commands under the new "qn908x" command are added
in this patch as well: disable_wdog to disabled the watchdog,
mass_erase to perform a mass erase and allow_brick to allow programming
images that disable the SWD interface.

Disabling the watchdog is required after a "reset halt" in order to run
the CRC algorithm from RAM when verifying the chip. However, this is not
done automatically on probing or other initialization since disabling
the watchdog might interfere with debugging real applications.

The "mass_erase" command allows to erase the whole flash without
probing it, since in some scenarios the chip can be locked such that no
flash or ram can be accessed from the SWD interface, allowing only to
run a mass_erase to be able to flash the program.

The flashing process allows to compute a checksum, similar to the
lpc2000 driver "calc_checksum" but done over a different region of the
memory. This checksum is required to be present for the QN908x
bootloader ROM to boot, and otherwise is useless. As with the lpc2000
design, verification when using "calc_checksum" is expected to fail if
the checksum was not valid in the image being verified.

This was manually tested on a QN9080, including the scan-view,
AddressSanitizer/UBSan and test coverage configurations.

Change-Id: Ibd6d8f3608654294795085fcaaffb448b77cc58b
Co-developed-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Signed-off-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Signed-off-by: iosabi <iosabi@protonmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/5584
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Added debug prints to show what is the target debug reason. Also added
debug print for Ctrl-C response. This is useful for troubleshooting and
log analysis.

Change-Id: I055936257d989efe7255656198a8d73a367fcd15
Signed-off-by: Marek Vrbka <marek.vrbka@codasip.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7720
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
The old implementation of gdb socket error handling
in the gdb_get_char_inner() differs between Windows and *nix
platforms. This patch simplifies it by using an existing
function log_socket_error() which handles most of the platform
specific things. It also provides better error messages.

Change-Id: Iec871c4965b116dc7cfb03c3565bab66c8b41958
Signed-off-by: Marek Vrbka <marek.vrbka@codasip.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7724
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
On Windows, isatty() can return any non-zero value if it's an interactive
device. Which diverges from the ARM semihosting specification. This patch
introduces a fix to make the SYS_ISTTY operation conform to spec.

Change-Id: I9bc4f3cb82370812825d52419851910b3e3f35cc
Signed-off-by: Marek Vrbka <marek.vrbka@codasip.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7725
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
Reviewed-by: Jan Matyas <jan.matyas@codasip.com>
…tream

Conflicts:
	HACKING
	src/target/riscv/riscv-013.c

Change-Id: I43ccb143cae8daa39212d66a8824ae3ad2af6fef
@timsifive timsifive marked this pull request as ready for review October 27, 2023 16:24
@timsifive
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Lots of changes (a lot of "int timeout" -> "unsigned int timeout"), but very few that might affect RISC-V.

@JanMatCodasip
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I have started checking the changes and would like to finish by the end of the week.

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I have finished checking the changes (visually) and it looks all right to me.

@timsifive
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Thanks for continuing to review these. We're slowly catching up...

@timsifive timsifive merged commit 2676f05 into riscv Nov 3, 2023
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@timsifive timsifive deleted the from_upstream branch November 3, 2023 17:13
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