Commit Graph

491 Commits

Author SHA1 Message Date
Tim Newsome cc0ecfb6d5 Merge branch 'master' into from_upstream
Conflicts:
	doc/openocd.texi
	src/flash/nor/fespi.c

Change-Id: Iaac61cb6ab8bba9df1d4b9a52671a09163eb50b2
2021-12-28 10:45:40 -08:00
Tomas Vanek f735faa931 target,flash: allow target_free_working_area on NULL area pointer
Standard C library free() allows NULL pointer as a parameter.

Change target_free_working_area() to conform this convention.

Remove NULL pointer tests before target_free_working_area() calls.

While on it add missing setting pointer to NULL after target_free_working_area().

Change-Id: I7c692ab04a9933398ba5bc614723ad0bdecb87b3
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/6712
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
2021-12-03 21:59:20 +00:00
Tim Newsome f4f8b59f62
Properly save/restore vtype.ill (#661)
Change-Id: I2478be8a849ceb4f637bbcfb774099217c509dfd
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-11-12 11:29:00 -08:00
Tim Newsome 108231c31d Merge branch 'master' into from_upstream
This primarily contains the large upstreaming of RISC-V changes, so lots
more RISC-V changes than usual.

Conflicts:
	src/target/riscv/opcodes.h
	src/target/riscv/riscv-011.c
	src/target/riscv/riscv-013.c
	src/target/riscv/riscv.c
	src/target/riscv/riscv.h

Change-Id: I1145dad538a5470ad209848572e6b0f560b671e9
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-10-25 10:20:31 -07:00
Tim Newsome 615709d140 Upstream a whole host of RISC-V changes.
Made no attempt to separate this out into reviewable chunks, since this
is all RISC-V-specific code developed at
https://github.com/riscv/riscv-openocd

Memory sample and repeat read functionality was left out of this change
since it requires some target-independent changes that I'll upstream
some other time.

Change-Id: I92917c86d549c232cbf36ffbfefc93331c05accd
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6529
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
2021-10-25 16:12:05 +00:00
Tim Newsome a554e09e7c
Properly handle held-in-reset targets. (#654)
* Properly handle held-in-reset targets.

1. Let OpenOCD continue into some pre-existing code that will periodically
   call examine() until it passes.
2. Fix crash in riscv_openocd_poll()
   When SMP is configured, it's not guaranteed that all targets have been
   examine()d when poll is called on one of them.

Change-Id: Ic6c1d217dc766ea69b67bb2e9a4898e37ee94927
Signed-off-by: Tim Newsome <tim@sifive.com>

* Actually poll for examine at least every 5s.

That's what the comment says the code is trying to do.

Change-Id: I34ff909a98f8aebb3c514e0f3ee403be7699c094
Signed-off-by: Tim Newsome <tim@sifive.com>

* Compact this error message a bit.

Reduces clutter when some targets haven't been properly examined yet.

Change-Id: Id865f191f0fbb48abece8b8558cc9fa2041a26df
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-10-21 17:08:49 -07:00
Tim Newsome c67a887a00 Attempt to fix tracking of examined status.
Fails dual-hart RV64 FreeRTOS test.

Change-Id: If0d6000b0daf116c0efa6072fb545bca9bf54ffe
2021-10-06 13:27:56 -07:00
Tim Newsome 1775341ef8 Merge branch 'master' into from_upstream
Conflicts:
	src/jtag/drivers/remote_bitbang.c
	src/rtos/rtos_standard_stackings.c
	src/rtos/rtos_standard_stackings.h
	src/target/breakpoints.c
	src/target/riscv/riscv.c
	src/target/target.c

Change-Id: Ia6fcba3d43be8ea31728f3bcc2be6cb7e3ccc5c5
2021-10-05 17:46:02 -07:00
Yasushi SHOJI 05752557dd helper: Remove src/helper from include dirs
The header files under src/helper/ can currently be included with
either

    #include <bits.h>
    or
    #include <helper/bits.h>

This is because we specify both "src/" and "src/helper/" directories
as include directories.  Some files name under "src/helper/", such as
types.h, log.h, and util.h are too generic and could be ambiguous
depending on the search path.

This commit remove "src/helper/" from our include dir and make C files
include explicitly.

Change-Id: I38fc9b96ba01a513d4a72757d40007e21b502f25
Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6507
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
2021-10-02 13:18:15 +00:00
Tim Newsome 3858878d38
Properly cache s0/s1 (#645)
* WIP on register caching.

So we don't have to save/restore S0 all the time.

Change-Id: I9d83a24dbd92a325213f2b25eebc9ede9dca2868

* Seems to work for RV32.

Change-Id: Ide620faa5dfef4f39c3146e094787ea28d041327

* Use caching everywhere.

Change-Id: I0de249437589e1f49811f34c12726528c045c74f

* Getting closer...

Change-Id: I532455f1e416723b79eecc7d33ec6407ccb8e33c

* All spike tests pass again.

Running all tests now takes 2m54s compared to 3m0s. That's probably not
the thing to measure, since the goal is to improve interactive
performance, while the tests do all kinds of other stuff (like sleep,
and start spike, etc.).

Change-Id: Ic7d944454a64b2baf6e6028debb4a1ba896834d8

* Save s0/s1 during examine.

Change-Id: I4795180e3b04d01433a11d4a0ccb38c35074cc44
Signed-off-by: Tim Newsome <tim@sifive.com>

* Check flush registers result.

Change-Id: I8350c4198cb41881e1143816698aed677a312111
Signed-off-by: Tim Newsome <tim@sifive.com>

* Fix upstream style regression.

Change-Id: I4cc7034151ba62fa51aea77e44b0cad9b9b97876
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-09-23 15:07:38 -07:00
Antonio Borneo 3917823187 openocd: remove NULL comparisons with checkpatch [1/2]
Patch generated automatically through the new checkpatch with
flags "--types COMPARISON_TO_NULL --fix-inplace".
This only fixes the comparisons
	if (symbol == NULL)
	if (symbol != NULL)
The case of NULL on the left side of the comparison is not tested.

Some automatic fix is incorrect and has been massaged by hands:
	-	if (*psig == NULL)
	+	if (*!psig)
changed as
	+	if (!*psig)

Change-Id: If4a1e2b4e547e223532e8e3d9da89bf9cb382ce6
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6351
Tested-by: jenkins
2021-07-24 10:38:00 +01:00
Tim Newsome 90d1d490c1
Add support for hypervisor bits. (#631)
Expose them in the virtual priv register, and set them on mcontrol6
hardware triggers. I have no good way to test this right now, so it's
all untested. But this change doesn't break anything, at least.

Change-Id: I0343a6169a0b2b1f0cc0abf687c6bdc560d99b1b
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-07-23 14:42:05 -07:00
Tim Newsome 2ae1e88178
Fix clobbering s2 in read_memory_progbuf(increment=0) (#634)
Fixes #632.

Change-Id: Ic884823faf67749f1ac8fbd91fe67ff9ebdd8fd0
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-07-23 12:01:41 -07:00
Antonio Borneo 20b29b7767 openocd: manually fix Yoda conditions
Fix the remaining Yoda conditions, detected by checkpatch but not
fixed automatically.

While there, apply minor style changes.

Change-Id: I6e1978b89c4d56a20aceaeb2b52968eb6384432a
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6356
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Xiang W <wxjstz@126.com>
2021-07-20 14:55:43 +01:00
Tim Newsome ab0a2a38a3
Call keep_alive() more often. (#616)
When it doesn't do anything (most of the time) it has negligible
performance impact. With slower remote bitbang, and multiple spike
instances being tested in a single chain, things are sufficiently slow
that if a computer is busy then this is required to pass
riscv-tests/debug.

Change-Id: I8816efedaa0cc3b25734ba8fdc979ee4502284a1
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-06-08 10:54:26 -07:00
Jan Matyas 0211e6bf4c
Print dcsr.cause always (#617)
Minor change/debug print: Made sure that dcsr.cause is printed
into the log always.
2021-06-07 12:40:58 -07:00
Antonio Borneo 036de3b482 riscv: replace macro DIM() with ARRAY_SIZE()
OpenOCD already defines the macro ARRAY_SIZE, while riscv code
uses a local macro DIM.

Prefer using the macro ARRAY_SIZE() instead of DIM().
Not all the riscv code has been upstreamed, yes; this patch only
covers the code already upstreamed.

Change-Id: I89a58a6d91916d85c53ba5e4091b558271f8d618
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6258
Reviewed-by: Xiang W <wxjstz@126.com>
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
2021-05-22 10:11:41 +01:00
Tim Newsome 19f7b5c43c
Add keepalive for vector register access. (#611)
(And whatever else does a lot of register writes.)

Change-Id: I86a1a784fb7b9430aa470dbb39a495b89f56d8c9
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-05-20 11:50:34 -07:00
Antonio Borneo 9bdd1daec3 riscv: replace macro DIM() with ARRAY_SIZE()
OpenOCD already defines the macro ARRAY_SIZE, while riscv code
uses a local macro DIM.

Prefer using the macro ARRAY_SIZE() instead of DIM().
Not all the riscv code has been upstreamed, yes; this patch only
covers the code already upstreamed.

Change-Id: I89a58a6d91916d85c53ba5e4091b558271f8d618
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2021-05-16 13:57:11 +02:00
Antonio Borneo 6f5259db05 riscv: prefer ARRAY_SIZE() to DIM()
OpenOCD already defines the macro ARRAY_SIZE, while riscv code
uses a local macro DIM.

Prefer using the macro ARRAY_SIZE() instead of DIM().
Not all the riscv code has been upstreamed, yes; this patch only
covers the code not upstreamed.

Change-Id: Ie3e411280f76bc798f1d51c2574cfec148ee0d0d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2021-05-16 13:53:10 +02:00
Tim Newsome 38eea2367c Add keep_alive() to system bus read loop.
Without it the repeat read test wasn't passing any longer. This is
because 7dd323b26d reduced the remote
bitbang performance. I've notified the mailing list about this.

Change-Id: Ie71592792202423aec89fa889b9e3d2a60a3c25f
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-05-03 14:56:34 -07:00
Ernie Edgar 28724d996a
Update version check error message from 0.14 to 1.0. (#588) 2021-04-02 11:51:01 -07:00
Tim Newsome d57ab0b632
From upstream (#580)
* configure: do not make Capstone dependency automagic

This adds regular ./configure options to control dependency on the
Capstone disassembly engine. See [0] for the rationale.

[0] https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Automagic_dependencies

Change-Id: I3e16dc5255d650aa1949ccf896b26dc96e522a75
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/5985
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* configure.ac: fix build with libusb0 and without libusb1

Driver 'openjtag' requires both libftdi and libusb1.
The current check is incorrect and the driver is built when
libftdi is present with libusb0 and without libusb1, which causes
the linker to fail resolving the required libusb1 symbols.

Remove the check for libusb0 on driver 'openjtag'.
Create a new adapters group LIBFTDI_USB1_ADAPTERS to hold the
driver 'openjtag'.

Change-Id: I1f5e554b519e51c829d116ede894639cb55a26aa
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5989
Tested-by: jenkins

* doc: fix over/underfull hboxes in PDF

This adds some cosmetic changes to make the PDF User Manual look
proper.

Building it now requires Texinfo 5.0 which shouldn't be problematic
according to [0]. Commit 79fdeb37f4 is
effectively reverted.

[0] https://repology.org/project/texinfo/versions

Change-Id: I990bc23bdb53d24c302b26d74fd770ea738e4096
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/5995
Reviewed-by: Jonathan McDowell <noodles-openocd@earth.li>
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* contrib: rpc_examples: haskell: fix ftbs with current libraries

And get rid of some warnings along the way.

Change-Id: I8fdbe1fa304276be6b0f25249b902b3576aa3793
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/5987
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* Makefile.am: fix override of target 'check-recursive'

To prevent executing the Jim Tcl tests, the makefile's target
'check-recursive' has been overridden in commit 56d163ce79
("jimtcl: update to 0.77, the current version, enable only
specific modules").
This causes a runtime warning during build:
	Makefile:6332: warning: overriding recipe for target 'check-recursive'
	Makefile:5098: warning: ignoring old recipe for target 'check-recursive'

Instead of override the makefile's target 'check-recursive',
prevent the recursion by re-assigning as empty the variable
SUBDIRS for this specific target only.

Change-Id: I03d1c467eba42316a59aeed4612d6bdbe6211282
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: 56d163ce79 ("jimtcl: update to 0.77, the current version, enable only specific modules")
Reviewed-on: http://openocd.zylin.com/5986
Tested-by: jenkins

* contrib: udev file for Cypress SuperSpeed Explorer kit

lsusb output:

Bus 003 Device 011: ID 04b4:0007 Cypress Semiconductor Corp.
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x04b4 Cypress Semiconductor Corp.
  idProduct          0x0007
  bcdDevice            0.00
  iManufacturer           1
  iProduct                2
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          114
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       1 AT-commands (v.25ter)
      iFunction               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              0
      CDC Header:
        bcdCDC               1.10
      CDC ACM:
        bmCapabilities       0x02
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
      CDC Call Management:
        bmCapabilities       0x00
        bDataInterface          1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      4
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      5
      bInterfaceProtocol      0
      iInterface              0

Change-Id: I62f0300199da3551c8774a4a5a4cd106a3ab2904
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-on: http://openocd.zylin.com/3611
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* target: fix memory leak on multiple '-gdb-port' flag

In the odd case of multiple flags '-gdb-port' during 'target
create' or following 'configure', the new strdup()'ed value will
replace the old one without freeing it.

Free the old value (if it exists) before replacing it.

Change-Id: I1673346613ce7023880046e3a9ba473e75f18b8a
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6005
Tested-by: jenkins

* udev: fix permission for Ambiq Micro EVK's

Commit 68e204f1e9 ("udev: Add rules for Ambiq Micro EVK's.") was
initially proposed as http://openocd.zylin.com/3429/ then replaced
by http://openocd.zylin.com/3980/
The initial proposal was for file '99-openocd.rules', in which
MODE="664" was the norm.
After merge of http://openocd.zylin.com/2804/ the new udev rules
in '60-openocd.rules' switched to MODE="660", but the evolution of
the above patch missed this change.

Switch udev rules of Ambiq Micro EVK's to MODE="660" and uniform
them to the rest of the file.

Change-Id: I4b4eea535184ee8569da3264bff4f1fafb5bce4d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: 68e204f1e9 ("udev: Add rules for Ambiq Micro EVK's.")
Reviewed-on: http://openocd.zylin.com/6004
Tested-by: jenkins

* doc/style: fix doxygen error

Doxygen complains about non-closed nested comments:
	doc/manual/style.txt:423: warning: Reached end of file
	while still inside a (nested) comment. Nesting level 1
	(probable line reference: 149)

This is caused by the string '/**' that is interpreted as the
beginning of a comment.

Escape the string to not let doxygen consider it as a comment

While there, replace @code/@endcode with @verbatim/@endverbatim to
properly render the line.

Change-Id: If2a27c4cf659326e317cc4ac8c0b313e97e40432
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5996
Tested-by: jenkins

* flash/nor/max32xxx: fix path of include file

The relative path should have three times '..'.

Issue identified by doxygen:
	src/flash/nor/max32xxx.c:85: warning: include file
	../../contrib/loaders/flash/max32xxx/max32xxx.inc not
	found, perhaps you forgot to add its directory to
	INCLUDE_PATH?

Change-Id: Ie7b4948c6770b8acb9eff26e08eea32945ebb219
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5997
Tested-by: jenkins

* Doxyfile.in: fix build out-of-tree

When doxygen is built out-of-tree, it fails to find the generated
file startup_tcl.inc:
	src/openocd.c:59: warning: include file startup_tcl.inc
	not found, perhaps you forgot to add its directory to
	INCLUDE_PATH?

Add '@builddir@/src' to INCLUDE_PATH.

Change-Id: I51f2f6fe7224bba0f8b3db7219f9831de4e67139
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5998
Tested-by: jenkins

* doc/manual/primer/jtag.txt: remove duplicated section name

The section name 'primerjtag' is used twice, causing doxygen to
complain:
	warning: multiple use of section label 'primerjtag',
	(first occurrence: doc/manual/primer/jtag.txt, line 107)

Rename one of them.

Change-Id: Id307915dbc51a7f647fab4fb28ab431e65344d61
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5999
Tested-by: jenkins

* Doxyfile.in: exclude libjaylink from doxygen

When build using libjaylink as git submodule, doxygen includes the
libjaylink files and complains for multiple 'mainpage' comment
block, one in OpenOCD and the other in libjaylink:
	src/jtag/drivers/libjaylink/libjaylink/core.c:37: warning:
	found more than one \mainpage comment block! (first
	occurrence: doc/manual/main.txt, line 1), Skipping current
	block!

Exclude libjaylink submodule from doxygen.

Change-Id: I5e856817344c9f21f8c26f077a23c00b83cfbcb5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6000
Tested-by: jenkins

* openocd: fix incorrect doxygen comments

Use '@param' in front of function's parameters and '@a' when the
parameter is recalled in the description.

This fixes doxygen complains:
	warning: Found unknown command '@buff16'

While there, fix a minor typo s/occured/occurred/ in a comment and
the typo s/@apram/@param/ in a doxygen comment.

Change-Id: I5cd86a80adef552331310a21c55ec5d11354be21
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6001
Tested-by: jenkins

* openocd: fix doxygen parameters of functions

Add to doxygen comment the missing parameters.
Remove from doxygen comment any non-existing parameter.
Fix the parameter names in doxygen comment to match the one in the
function prototype.
Where the parameter name in the doxygen description seems better
than the one in the code, change the code.
Escape the character '<' to prevent doxygen to interpret it as an
xml tag.

Change-Id: I22da723339ac7d7a7a64ac4c1cc4336e2416c2cc
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6002
Tested-by: jenkins

* doc/manual/primer/autotools.txt: fix doxygen warning

Commit ab90b87778 ("configure: remove AM_MAINTAINER_MODE,
effectively always enabling all the rules") removes the configure
flag '--enable-maintainer-mode' and its documentation, but have
left a reference to the removed subsection 'primermaintainermode'
and this triggers a warning in doxygen:
	doc/manual/primer/autotools.txt:21: warning: unable to
	resolve reference to 'primermaintainermode' for \ref
	command

Remove the obsoleted paragraph.

Change-Id: I56e69ef033d546d159745bed1b47c6105827e7ae
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: ab90b87778 ("configure: remove AM_MAINTAINER_MODE, effectively always enabling all the rules")
Reviewed-on: http://openocd.zylin.com/6003
Tested-by: jenkins

* flash/stmqspi: fix build error with -Werror=maybe-uninitialized

using gcc 9.3 on ubuntu focal fossa with -Werror=maybe-uninitialized
we get this error:
  /src/flash/nor/stmqspi.c: In function ‘read_flash_id’:
  /src/flash/nor/stmqspi.c:1948:6: error: ‘retval’ may be used uninitialized

Change-Id: Ifd8ae60df847fc61e22ca100c008e3914c9af79b
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@st.com>
Reviewed-on: http://openocd.zylin.com/6012
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* target/riscv: fix build error with -Werror=maybe-uninitialized

using gcc 9.3 on ubuntu focal fossa with -Werror=maybe-uninitialized
we get this error:
  /src/target/riscv/riscv.c: In function ‘riscv_address_translate’:
  /src/target/riscv/riscv.c:1536:13: error: ‘pte’ may be used uninitialized

Change-Id: I51e180b43f9b6996e4e4058db49c179b9f81bcdc
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@st.com>
Reviewed-on: http://openocd.zylin.com/6013
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* cortex_m: [FIX] ARMv8-M does not support VECTRESET

ref: Arm®v8-M Architecture Reference Manual (DDI0553B.m)
     D1.2.3: AIRCR, Application Interrupt and Reset Control Register
             Bit [0] is RES0

Change-Id: I6ef451b2c114487e2732852a60e86c292ffa6a50
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@st.com>
Reviewed-on: http://openocd.zylin.com/6014
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* driver/ftdi: skip trst in swd mode

When using the adapter olimex arm-jtag-swd (to convert to SWD a
JTAG-only FTDI adapter), the pin trst on JTAG side is re-used to
control the direction of pin SWDIO on SWD side.
There is a single reset API at adapter driver to assert/deassert
either srst and/or trst. A request to assert/deassert srst can
cause also trst to change value, hanging the SWD communication.

In SWD mode, ignore the value passed to trst.

Change-Id: I5fe1eed851177d405d77ae6079da9642dc1a08f1
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6006
Tested-by: jenkins

* configure.ac: drop macro 'AC_PROG_CC_C99' from autoconf 2.70

The macro AC_PROG_CC_C99 has been obsoleted by autoconf 2.70 and
triggers a set of warnings from both 'aclocal' and 'autoconf'.
The test of AC_PROG_CC_C99 is now included in AC_PROG_CC.

For autoconf 2.69 and earlier the macro is still required, so
cannot be simply dropped.

Use a conditional test to avoid the warning on autoconf 2.70 but
still use AC_PROG_CC_C99 on older autoconf.

Change-Id: I5e8437f5a826fb63be6d07bcb5bb824f94683020
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6009
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>

* configure: drop macro 'AC_HEADER_TIME'

The macro AC_HEADER_TIME has been obsoleted by autoconf 2.70.

Not all systems provide 'sys/time.h', plus some old system didn't
allowed to include both 'time.h' and 'sys/time.h' because 'time.h'
was included by 'sys/time.h' and was not properly protected to
allow multiple inclusion.
The macro AC_HEADER_TIME helps to detect such odd case.
Nowadays all the systems properly protect 'time.h', so its safe to
unconditionally include 'time.h', even if it is also included by
'sys/time.h'.

The case of systems without 'sys/time.h' is already covered by
configure.ac through the directive
	AC_CHECK_HEADERS([sys/time.h])

Remove the obsoleted autoconf macro and simplify the code by
including 'time.h' unconditionally and check HAVE_SYS_TIME_H to
include 'sys/time.h'.

Change-Id: Iddb3f3f1d90c22668b97f8e756e1b4f733367a7d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6010
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>

* README.macOS: explain how to install suitable Texinfo

Change-Id: Ic5906111f412eebd906a9be3fd0e133484def3eb
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/6026
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* jlink: fix device discovery when network is off

If user specifies a serial number for the jlink device, openocd
extends the search to network jlink devices too, without checking
if the host has a valid and functional network connection. If the
network is not functional, libjaylink returns error. This error
invalidates the discovery on USB, even if it was successful.

Factor-out parts of the jlink_init into separate jlink_open_device
function, use that function to firstly discover and match USB
devices and, if matching device was not found on the USB bus and
serial number was specified, repeat discovery and matching via TCP.

Fixes: https://sourceforge.net/p/openocd/tickets/294/

Change-Id: Iea0de1640d4e5b21ecc7e9c1dd6d36f214d647c2
Signed-off-by: Bohdan Tymkiv <bohdan200@gmail.com>
Reviewed-on: http://openocd.zylin.com/6025
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>

* README: add missing items for 0.11

JTAG adapters
  Cadence DPI, Cypress Kitpro, FTDI FT232R, Linux GPIOD, Mellanox rshim,
  Nuvoton Nu-Link, Nu-Link2, NXP IMX GPIO, Remote Bitbang, TI XDS110,
  Xilinx XVC/PCIe

Debug targets
  AArch64, Cortex-M (ARMv8-M), ARCv2, MIPS64, RISC-V, ST-STM8

Flash Drivers
  ATmega128RFA1, Atmel SAM, eSi-RISC, EZR32HG, MAX32, MXC, nRF52, PSoC6,
  Renesas RPC HF and SH QSPI, SiFive Freedom E, ST BlueNRG,
  STM32 QUAD/OCTO-SPI for Flash/FRAM/EEPROM, SWM050, TI CC13xx, TI CC26xx,
  TI CC32xx, TI MSP432, Winner Micro w600, Xilinx XCF

Change-Id: I341618ac5d7189e4f98268cecd66c99447b72af8
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@st.com>
Reviewed-on: http://openocd.zylin.com/6027
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>

* The openocd-0.11.0-rc2 release candidate

Signed-off-by: Paul Fertser <fercerpav@gmail.com>

* Restore +dev suffix

Signed-off-by: Paul Fertser <fercerpav@gmail.com>

* steppenprobe: fix file permission

Commit 895d4a5995 ("tcl/interface/ftdi: Add Steppenprobe open
hardware interface") erroneously set the execution permission to
the configuration file.

Strip the execution permission.

Change-Id: I556451d5e6fee4aee385451e8c90216a25b6ef46
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: http://openocd.zylin.com/5653
Reviewed-on: http://openocd.zylin.com/6038
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Paul Fertser <fercerpav@gmail.com>

* github: fix github wokflow while pushing a tag

this fix permits to add correctly the generated artifact (windows binaries)
into the release section.

Change-Id: Ia982370d3a1e08c623ebcabb5ac97e9fb49d00e0
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/6047
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* doc: Fix type in Hooking up the JTAG Adapter

We are talking about adapter connectivity in this chapter. It should
be "dongles" instead of "cables".

Change-Id: I7bd4307765517375caa2af86dfc929d0ef66c3e6
Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
Reviewed-on: http://openocd.zylin.com/6040
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

* doc/manual: Fix @subpage handling

The subpage "thelist" used to have a title "Pending and Open Tasks"
but the commit c41db358a0 changed it to "The List". With
@subpage, it now renders:

    "The List of The List enumerates opportunities for"

instead of

    "The List of Pending and Open Tasks enumerates opportunities for"

This commit fix it to

    "The List enumerates opportunities for"

Change-Id: Ifee0dcd9b3c9f7e651a8748a7afda99eedea3c5c
Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
Reviewed-on: http://openocd.zylin.com/6041
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

* doc/manual: Fix function name typo

We have both the singular form, register_command(), and the plural form
register_commands().

Change-Id: I905ea83988b8ac70dd809b02d53b646aa4d66697
Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
Reviewed-on: http://openocd.zylin.com/6042
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

Co-authored-by: Paul Fertser <fercerpav@gmail.com>
Co-authored-by: Antonio Borneo <borneo.antonio@gmail.com>
Co-authored-by: Jiri Kastner <cz172638@gmail.com>
Co-authored-by: Tarek BOCHKATI <tarek.bouchkati@st.com>
Co-authored-by: Bohdan Tymkiv <bohdan200@gmail.com>
Co-authored-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Co-authored-by: Yasushi SHOJI <yashi@spacecubics.com>
2021-02-11 11:27:18 -08:00
Jan Matyas 9e174604b9
Fix in write_memory_bus_v1: Read sbcs properly (#578)
* Fix in write_memory_bus_v1: Read sbcs properly

Fixed an issue with system bus write: sberrors were not properly
detected because of an incomplete read of "sbcs". The read was initiated
but not completed (value not acquired by a second DMI scan).

Added debug prints in case sberror != 0.
Added few comments to explain the algorithm.

Change-Id: Id5eb07f2f1bf8e9afee2dec04b9ff5c5a57f606b
Signed-off-by: Jan Matyas <matyas@codasip.com>

* Updated per review discussion at #577.

Change-Id: I65c07edcd4e86eaa5327280a81f74db0b9c84f9c
Signed-off-by: Jan Matyas <jmatyas@codasip.com>

* Empty commit to re-trigger Travis build.

Change-Id: I95deeb28584a891203c8904be621e48003f069dc

Co-authored-by: Jan Matyas <jmatyas@codasip.com>
2021-02-04 10:04:01 -08:00
Tim Newsome 3651cbdfdc
Add memory access while running to `riscv info` (#576)
This way people can write TCL scripts that rely on these more abstract
properties instead of having to check for the existence of sbaccess,
which is not part of 0.11. (There is a similar feature but things are
named differently.)

Change-Id: I5c95a29ef43cb40c3a73b904f11fa7ca38d87b21
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-01-29 12:51:22 -08:00
Tim Newsome 8980c2038a
Select current hart before accessing vector regs. (#574)
I don't know how this worked before. Possibly caused by overzealous
removal of `-rtos riscv`.

Change-Id: I7259267b861ef45655f469ab39cc463d608fe149
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-01-29 10:58:34 -08:00
Tim Newsome a83ac81022
Add authdata_read/authdata_write support to 0.11. (#575)
AFAIK there is no hardware that implements this, but it should be a
close-to-done starting point in case it is ever required.

Change-Id: I49e3082e8629b1d70b12e8a847c2848e75b04508
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-01-28 09:56:51 -08:00
Jan Matyas 4d0efe0fbb
riscv-013: Fix comment for register_read() (#569)
Signed-off-by: Jan Matyas <matyas@codasip.com>
2021-01-20 13:01:16 -08:00
Tim Newsome d52e4668a6
Remove `-rtos riscv` (#567)
* Remove `-rtos riscv`.

`-rtos hwwthread` is target-independent and a cleaner way to achieve the
same thing.

Change-Id: I863a91f9ad66e37dc36f2fbcbffe403b91355556

* Little more cleanup.

Change-Id: I8fda2317368a94760bc734abc7f1de6ee5b82a7c

* Clean up some more.

Change-Id: I64a1e96aa3bd8c0561d4d19930f99e9bc40eab86

* Get rid of riscv_[sg]et_register_on_hart

Change-Id: I5ea9439bad0e74d7ed2099935e7fc7292c4a2b7f

* Remove hartid arg from set_register.

Change-Id: Ib560e3c63ff32191589c74d3ee06b12295107c6f

* Remove more references to hartid.

Change-Id: Ie9d932fb8b671c478271c1084dad43cad3b2bfbc

* Remove some unused code.

Change-Id: I233360c6c420d1fc98b923d067e65a9419d88d7b
Signed-off-by: Tim Newsome <tim@sifive.com>
2021-01-18 12:22:43 -08:00
Antonio Borneo 7e64e5a895 openocd: fix doxygen parameters of functions
Add to doxygen comment the missing parameters.
Remove from doxygen comment any non-existing parameter.
Fix the parameter names in doxygen comment to match the one in the
function prototype.
Where the parameter name in the doxygen description seems better
than the one in the code, change the code.
Escape the character '<' to prevent doxygen to interpret it as an
xml tag.

Change-Id: I22da723339ac7d7a7a64ac4c1cc4336e2416c2cc
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6002
Tested-by: jenkins
2021-01-13 11:33:53 +00:00
Craig Blackmore 1158acec66 riscv: Fix comment in read_memory_progbuf
The comment should refer to reading rather than writing.

Change-Id: I72937bb48053233ab5e48d343c4bd1e394f77bda
Signed-off-by: Craig Blackmore <craig.blackmore@embecosm.com>
2021-01-13 11:32:38 +00:00
Tim Newsome b8620764c0
Add `riscv info` command. (#558)
Add `riscv info` command. Final output is "TCL format" and looks like this:
```
hart.xlen              64
hart.trigger_count      4
dm.abits                6
dm.progbufsize          2
dm.sbversion            0
dm.sbasize              0
dm.sbaccess128          0
dm.sbaccess64           0
dm.sbaccess32           0
dm.sbaccess16           0
dm.sbaccess8            0
```

* Add `riscv info` command.

This command displays some basic information that OpenOCD has detected
about the target. The output is displayed in YAML so it can easily be
parsed. Example of current output:
```
Hart:
  XLEN: 32
  trigger count: 4
Debug Module:
  abits: 6
  progbufsize: 2
  sbversion: 0
  sbasize: 0
  sbaccess128: 0
  sbaccess64: 0
  sbaccess32: 0
  sbaccess16: 0
  sbaccess8: 0
```

Change-Id: If920c083ff6ec9f482c50f913cd8ceaa62461217
Signed-off-by: Tim Newsome <tim@sifive.com>

* Disable workflow inherited from upstream.

Change-Id: Ifc5ed1b4f5ec2278b8bcf3279c9fd462e469fefa
Signed-off-by: Tim Newsome <tim@sifive.com>

* Switch from YAML to TCL "set array" input format.

Change-Id: I3833210e5bf6d7cffc9934c04ec5201ae7732ad8
Signed-off-by: Tim Newsome <tim@sifive.com>

* Remove indent in `riscv info` output.

That was getting a little too cute, and probably more confusing than
helpful.

Change-Id: Ie51416f53ab4b69294962f0565767d370db82867
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-12-14 12:40:08 -08:00
Tim Newsome f72e5bb0d8
Fix error handling in read_memory_progbuf_one(). (#560)
* Fix error handling in read_memory_progbuf_one().

Be sure to restore mstatus/s0 even if there is a failure during the
operation.

Fixes #559.

Change-Id: Ib86ca2c7455bad4a668f34703566060a782116db
Signed-off-by: Tim Newsome <tim@sifive.com>

* Style fix suggested in review.

Change-Id: I444112a9dffea483b7d0e5f96ef7bbdaf58d249f
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-12-14 12:39:00 -08:00
Jan Matyas 5d0543cc1c
Clear sbcs.sbbusyerror without affecting other sbcs bits (#547)
This is a fix for an issue reported by Joe Stoy at:
https://sourceforge.net/p/openocd/mailman/message/37128537/

When clearing sbcs.sbbusyerror, preserve other bits in the sbcs
register that are needed for subsequent system bus transactions.
2020-12-14 12:32:31 -08:00
Tim Newsome 3cf46af271
Add before/after timestamps to memory sampling. (#550)
This lets a user see exactly what period of time was sampled, without
having to guess how much time the target was ignored in between bursts.

Change-Id: I5c0639528636bf1a88f249be3ba59bec28c001e2
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-10-21 12:21:05 -07:00
Tim Newsome e8379cda32 Make it build again.
Change-Id: I851cfb8811d8e5d25760c9fddaeb99d7af1fdf6f
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-10-15 15:06:28 -07:00
Tim Newsome 7a933ea7ad Merge branch 'master' into from_upstream_histogram
Used histogram diff strategy, which was much better than the default.

Conflicts:
	doc/openocd.texi
	src/flash/nor/fespi.c
	src/jtag/drivers/libjaylink
	src/rtos/rtos.c
	src/target/riscv/batch.c
	src/target/riscv/encoding.h
	src/target/riscv/riscv-011.c
	src/target/riscv/riscv-013.c
	src/target/riscv/riscv.c
	src/target/riscv/riscv.h
	src/target/target.c
	tcl/target/gd32vf103.cfg

Change-Id: I1321f62ba719419e58f93b2195f2540bd62f50d2
2020-10-15 12:32:45 -07:00
Tim Newsome b68674a1da Upstream tons of RISC-V changes.
These are all the changes from https://github.com/riscv/riscv-openocd
(approximately 91dc0c0c) made just to src/target/riscv/*. Some of the
new code is disabled because it requires some other target-independent
changes which I didn't want to include here.

Built like this, OpenOCD passes:
* All single-RV32 tests against spike.
* All single-RV64 tests against spike.
* Enough HiFive1 tests. (I suspect the failures are due to the test
suite rotting.)
* Many dual-RV32 (-rtos hwthread) against spike.
* Many dual-RV64 (-rtos hwthread) against spike.

I suspect this is an overall improvement compared to what's in mainline
right now, and it gets me a lot closer to getting all the riscv-openocd
work upstreamed.

Change-Id: Ide2f80c9397400780ff6780d78a206bc6a6e2f98
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/5821
Tested-by: jenkins
Reviewed-by: Jan Matyas <matyas@codasip.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
2020-10-14 05:43:05 +01:00
Tim Newsome 6c1bd05088
Add memory sample feature (#541)
* Add memory sampling feature.

Currently only gets 10 samples per second, but the overall scaffolding
looks like it works.

Change-Id: I25a2bbcba322f2101c3de598c225f83c902680fa

* Basic memory sample speed-ups.

977 samples/second.

Change-Id: I6ea874f25051aca1cbe3aa2918567a4ee316c4be

* Add base64 dumping of sample buffer.

We can't just dump raw data, because the API we use to get data to the
"user" uses NULL-terminated strings.

Change-Id: I3f33faaa485a74735c13cdaad685e336c1e2095f

* WIP on optimizing PC sampling.

1k samples per second on my laptop, which is roughly double what it was.

Change-Id: I6a77df8aa53118e44928f96d22210df84be45eda

* WIP

Change-Id: I4300692355cb0cf997ec59ab5ca71543b295abb0

* Use small batch to sample memory.

5k samples/second. No error checking.

Change-Id: I8a7f08e49cb153699021e27f8006beb0e6db70ee

* Collect memory samples near continuously.

Rewrite OpenOCD's core loop to get rid of the fixed 100ms delay.
Now collecting 15k samples/second.

Change-Id: Iba5e73e96e8d226a0b5777ecac19453c152dc634

* Fix build.

Change-Id: If2fe7a0c77e0d6545c93fa0d4a013c50a9b9d896

* Fix the mess I left after resolving conflicts.

Change-Id: I96abd47a7834bf8f5e005ba63020f0a0cc429548

* Support 64-bit address in memory sampling.

* Support sampling 64-bit values.

* Better error reporting. WIP on 64-bit support.

* Speed up single 32-bit memory sample.

21k samples/second.

* WIP on review feedback.

Change-Id: I00e453fd685d173b0206d925090beb06c1f057ca

* Make memory sample buffers/config per-target.

Change-Id: I5c2f5997795c7a434e71b36ca4c712623daf993c

* Document, and add bucket clear option.

Change-Id: I922b883adfa787fb4f5a894db872d04fda126cbd
Signed-off-by: Tim Newsome <tim@sifive.com>

* Fix whitespace.

Change-Id: Iabfeb0068d7138d9b252ac127d1b1f949cf19632
Signed-off-by: Tim Newsome <tim@sifive.com>

* Document sample buffer full behavior.

Change-Id: Ib3c30d34b1f9f30cf403afda8fdccb850bc8b4df
Signed-off-by: Tim Newsome <tim@sifive.com>

* Actually clear the sample buffer in dump_sample_buf.

Change-Id: Ifda22643f1e58f69a6382abc90474659d7330ac5
Signed-off-by: Tim Newsome <tim@sifive.com>

* Use compatible string formatting.

Change-Id: Ia5e5333e036c1dbe457bc977fcee41983b9a9b77
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-10-07 14:31:36 -07:00
Tom Hebb e2cfd4e063
Improve support for GD32VF103 MCU (#538)
* riscv: work around buggy hart states during reset in some DMs

As described in the comment this change adds, the GD32VF103 DM reports
that the hart is in more than one state while it is resetting. Because
of this, the current code acknowledges resets before they actually
complete. This sometimes prevents havereset from getting cleared as
intended, leading to a spurious "Hart 0 unexpectedly reset!" message the
next time riscv_is_halted() gets called.

To work around this, check for the absence of the unavailable state
rather than the presence of the running or halted states. This behavior
is also arguably more true to the spec than what exists now: Section 3.2
states that "The system may take an arbitrarily long time to come out of
reset, as reported by allunavail, anyunavail."

Change-Id: I34e90a16233125608bce8e4c2414dbead637600e
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>

* riscv: support custom reset-assert scripts

The reset-assert event is used, if present, to override the default
reset logic for ARM and MIPS cores. Do the same for RISC-V so that
devices with buggy ndmreset functionality (like GD32VF103) or
nonstandard reset sequences can specify the appropriate logic in Tcl.

Change-Id: I5e12077d67509853edb8ef3ad3f037f293a5fbb6
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>

* tcl/target: support GD32VF103 RISC-V MCU

The GD32VF103 is a low-cost 32-bit RISC-V microcontroller with
peripherals that are more-or-less compatible with the STM32F103 ARM
microcontroller. It is available on several low-cost dev boards, such as
the Sipeed Longan Nano, which is what I am testing on.

Add initial support for this chip, including a workaround for a buggy
ndmreset line (i.e. one that doesn't actually trigger a reset) in its
integrated debug module. Use the existing GD32VF103 flash driver that
was ported from the vendor's code in commit 48e40f3513 ("Add support
for GD32VF103 flash").

Change-Id: Iadac47ceb5437b8e18f3d35901388f10fef9f876
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>

* tcl/target/gd32vf103: add main flash alias

The GD32VF103 creates an alias to either main flash or the bootloader at
0x0, depending on how it was booted. As such, we want to indicate to
debuggers that the memory at 0x0 is flash and so cannot support software
breakpoints. To do this, add an alias to the main flash in the config.
This isn't strictly accurate in the case where we're running the
bootloader, but it still suits our purpose of fixing breakpoint
behavior.

Change-Id: I9eb8462d354f096eee231c0e5e2bffa538a5903e
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
2020-10-01 11:06:11 -07:00
Tom Hebb 2c909f8faa
riscv: remove unused riscv_error_t type (#539)
This seems to be completely unused in these two files. It was probably
accidentally copied from riscv-011.c, where it is used.

Change-Id: I3f7ad8b2d26b005d3ea4438e2b3ec46a6c801792
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
2020-09-28 09:46:47 -07:00
Tim Newsome 13b2ed5ec5
Minor cleanups. (#537)
Requested in http://openocd.zylin.com/#/c/5821/9

Change-Id: I775d9dd3cc8642361d4d129a05053ee3d27b99bb
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-09-28 09:41:08 -07:00
Jan Matyas 11c4f89b32
Allocate RISC-V arch_info during target creation (#531)
* Allocate RISC-V arch_info during target creation

* Ensured that target->arch_info is allocated as soon as the
  target is created. Needed so that per-target config commands
  (e.g. "riscv set_mem_access") can be executed also in the
  OpenOCD's config phase (before calling "init").

* Added several assert()'s for safety.

Signed-off-by: Jan Matyas <matyas@codasip.com>

* Removed a TODO comment
2020-09-17 13:20:12 -07:00
Tim Newsome 1712dc2c54
{read_from,write_to}_buf -> buf_[sg]et_u{32,64} (#529)
Requested in http://openocd.zylin.com/#/c/5821/7/src/target/riscv/riscv-013.c

Change-Id: I764d77192e902466eed8a6ccf1042b42016afb7e
Signed-off-by: Tim Newsome <tim@sifive.com>
2020-09-15 11:40:37 -07:00
Samuel Obuch 2ea18ef7f6
Selection of memory access methods, aampostincrement detection (#508)
* Add flexible selection of memory access methods, detection of aampostincrement.

New configuration command introduced: "riscv set_mem_access".
It allows to specify which RISC-V memory access methods (progbuf,
sysbus and/or abstract access) should be tried and in which order
of priority.

Command "riscv set_prefer_sba" is left and works in backward
compatible way, but is marked as deprecated.

First time abstract memory access is executed, it is tried with
set aampostincrement bit. If the abstract command fails or the
address is not incremented correctly, aampostincrement will not
be used for any subsequent accesses.

Signed-off-by: Samuel Obuch <sobuch@codasip.com>

* remove unnecessary variable

* fix doc
2020-09-10 13:57:51 -07:00
Tim Newsome 5e84c5dd8a
Fix usage for our RISC-V commands. (#521)
Change-Id: Ia4e020637aae2384af223b0210ef2aef6a14b31a
2020-09-03 11:59:48 -07:00
Tim Newsome 9357818bb9
Check malloc/calloc return values. (#517)
Should not affect anything, but requested in
http://openocd.zylin.com/#/c/5821/5/src/target/riscv/batch.c@28

Change-Id: Ib7185bd93eeb918e72872416ab6364f8776cff88
2020-09-03 11:57:25 -07:00
Tim Newsome 91dc0c0c8e
Add SPDX tags for RISC-V files. (#513)
Requested in http://openocd.zylin.com/#/c/5821/3

Change-Id: I95551a3311d8e128300bacdf463da7ab4edf29a0
2020-08-24 15:43:03 -07:00
Tim Newsome ad5f40af8d
Update encoding.h from riscv-opcodes (#514)
Rename dscratch to dscratch0, since that is what it's called in the
spec.

Change-Id: Id6271ae272e979cef69e8ef0577b23452fb84f51
2020-08-24 15:42:45 -07:00
Tim Newsome ca6b1eff1d
Update debug_defines.h from riscv-debug-spec (#515)
A ton of constants got a new prefix, so I made a lot of changes to
match, but no functional changes.

I did define DTM_DMI_MAX_ADDRESS_LENGTH	in batch.c. That definition
never should have been in debug_defines.h, which I missed during code
review.

Change-Id: If5d86660f84bb0a3f2865fb36ef05d6630486d8b
2020-08-24 15:42:29 -07:00
Tim Newsome 920497c62f
Mostly whitespace changes. (#511)
Requested in http://openocd.zylin.com/#/c/5821/3

Change-Id: I75e6d551091396fc6e81b3642ae44bafe358eed7
2020-08-21 12:56:04 -07:00
Tim Newsome c116dc50b2
Update to version 1.0 of the vector spec. (#505)
Accessing registers on targets that implement 0.9 or earlier will no
longer work. If you need that we can talk about making it a config
option.

Change-Id: I953b639cf9a92ee9b0422e035da57c1d07504237
2020-08-18 11:07:34 -07:00
Tim Newsome 53ec10b61d
Create `riscv repeat_read` command (#510)
* WIP, apply stash with conflicts.

Change-Id: Ia794bde419aa29161c68898d20e30527e69f5a31

* Fix conflict resolution problems.

Change-Id: I4cedc348cf613f98cc5a36886f37c568ca644238

* Add repeat_read command.

Only implemented for sba v1 right now, and poorly tested at that.

Change-Id: I1d9ff63e1dea14b3f6a9f8ba4dad53668bf8038b

* Hide bogus address in repeat_read

Change-Id: Ib66c1fa60df9c7fc7cc87880b0fddc52825b48aa

* WIP make repeat read work with progbuf.

Change-Id: I555f8b880c8bf0d1ed0f3f90c7987a5b516a7a79

* WIP

Change-Id: Ic567cea68355ae907e94bd25185a2c9be6fd798d

* Fix error handling when increment is non-zero.

Change-Id: I5a2f3f2ee948fd4e12c0443a542e85b7b5c5791a

* Correctly(?) handle failures when increment is 0.

I'm not 100% convinced that this ensures every read value shows up in
the output, but it ought to work.

Change-Id: I1af3e7174cf9d5e6f293456fb5ead629e17faaaa

* Don't crash when asked to read no data.

Change-Id: I4061b5c720a43a4f828384ab9eacc89557adfa05

* Remove unnecessary comment.

Change-Id: I1be3d699b86299339b3a830ca1ef13c9f5b9fe0f

* Document `riscv repeat_read`.

Change-Id: I4a0f071f38784b2de034f8c1b0ce75d6d2d326b2
2020-08-18 11:01:41 -07:00
Samuel Obuch c1c88dccee
Account for impebreak in size requirements for progbuf (#509)
* Account for impebreak in size requirements for progbuf

* add helper function
2020-08-17 13:07:11 -07:00
Jan Matyas e2d3184eba
Fix of DMI batch scans over 64-bits (#432)
This fixes buffer overrun/data corruption during DMI scan batches
on targets with large value of dtmcs.abits > 30 (unusual, but within
the spec).
2020-08-07 08:39:43 -07:00
Antonio Borneo 480ba8ca88 target: fix minor typos and duplicated words
Change-Id: I8deb0017dc66a243e3dd51e285aa086db500decd
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5766
Tested-by: jenkins
2020-07-26 23:09:45 +01:00
Tim Newsome 43463b30ed Merge branch 'riscv' into from_upstream
Change-Id: Ia9c5d7c7f0a4913c1af17e042266736943334c7f
2020-06-30 11:04:48 -07:00
Tim Newsome 0b1b9e2034
Accept dmstatus.version==3 (0.14) (#489)
Fixes #485.

Change-Id: I60b3d68827ca726558bc28035c0b74c5cf0d9754
2020-06-25 15:34:48 -07:00
Tim Newsome e07613de33 Merge branch 'master' into from_upstream
Conflicts:
      .gitmodules
      .travis.yml
      jimtcl
      src/jtag/core.c
      src/jtag/drivers/ftdi.c
      src/jtag/drivers/libjaylink
      src/jtag/drivers/mpsse.c
      src/jtag/drivers/stlink_usb.c
      src/rtos/hwthread.c
      src/target/riscv/riscv-013.c
      src/target/riscv/riscv.c
      tcl/board/sifive-hifive1-revb.cfg

Change-Id: I2d26ebeffb4c1374730d2e20e6e2a7710403657c
2020-06-23 13:05:43 -07:00
Tim Newsome 4f9e2d7171
Fix semihosting for multicore targets (#478)
* WIP making semihosting work with -rtos hwthread.

Change-Id: Icb46f3eeedc1391e8fdc73c3ad8036f20267eb2e

* More WIP.

Change-Id: I670a6e1ba2a13a6ef2ae303a99559a16fdd1bbfb

* Fix halting due to a trigger.

Change-Id: Ie7caa8dde9518bcd5440e34cf31ed0d30ebf29ad

* Fix multicore semihosting without halt groups.

Change-Id: I53587e5234308ed2cc30a7132c86e4c94eb176c4

* WIP

Change-Id: I40630543b08d8b533726cb3f63aa60a62be8ef40

* Fix single core semihosting.

This was the last bug!

Change-Id: I593abac027fa9707f48b7f58163d7089574a0e28

* Fix whitespace.

Change-Id: I285c152970b87864c63803fae61312e5b79dfe6d
2020-05-19 10:34:36 -07:00
Tim Newsome 1524487a13
Speed up SBA block reads roughly 2x. (#477)
* Speed up SBA block reads roughly 2x.

Change-Id: I4e4f5530d4abae7470fd00308361e727904367d2

* Fix whitespace.

Change-Id: I28a1269c489d051560a2455973f9a8574f35f487
2020-05-18 14:43:41 -07:00
Antonio Borneo 4f459660a9 coding style: avoid unnecessary line continuations
Line continuation, adding a backslash as last char of the line, is
requested in multi-line macro definition, but is not necessary in
the rest of C code.

Remove it where present.

Identified by checkpatch script from Linux kernel v5.1 using the
command

	find src/ -type f -exec ./tools/scripts/checkpatch.pl \
	-q --types LINE_CONTINUATIONS -f {} \;

Change-Id: Id0c69e93456731717a7b290b16580e9f8ae741bc
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5619
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
2020-05-09 14:39:29 +01:00
Antonio Borneo 9b29cb58ac coding style: remove useless break after a goto or return
In a switch/case statement, a break placed after a goto or return
is never executed.
The script checkpatch available in Linux kernel v5.1 issues a
warning for such unused break statements.
In the process of reviewing the new checkpatch for its inclusion
in OpenOCD, let's get rid of these warnings.

The script checkpatch is unable to fixup automatically this case.
Thanks to having "break" command using a single code line, this
patch has been generated using the script below:

	find src/ -type f -exec ./tools/scripts/checkpatch.pl -q \
	 --types UNNECESSARY_BREAK -f {} \; \
	| sed -n '/^#/{s/^.*FILE: //;s/:$//;s/:/ /;p}' \
	| awk 'function P() {print "sed -i '\''"b"'\'' "a};
	       {
	         if ($1!=a) {
	           if (a) {P()};
	           a=$1;
	           b=$2"{d}";
	         } else {
	           b=b";"$2"{d}"
	         }
	       };
	       END {P()}'

Change-Id: I56ca098faa5fe8d1e3f712dc0a029a3f10559d99
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5617
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
2020-05-09 14:39:05 +01:00
Tim Newsome 55dd7e83ca
Add awareness of halt group cause. (#472)
Change-Id: I7f7b967ccaa3d1ff05a7e7d0c2a7ba4fa7d68ac0
2020-05-06 08:42:38 -07:00
Florian Fainelli 5c6e32612d Remove BUILD_TARGET64
BUILD_TARGET64 creates a larger test matrix and mostly gates the
building of the aarch64/armv8 target, make that unconditional, which
would help fixing any issues with 64-bit address types anyway.

Rebased by Antonio Borneo after commit 1fbe8450a9 ("mips: Add
MIPS64 support")

Change-Id: I219f62b744d540d9dde9a42e6b63fd7d91df3dbb
Suggested-by: Matthias Welwarsky <matthias@welwarsky.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5240
Tested-by: jenkins
2020-04-21 12:55:41 +01:00
Tim Newsome 3967f48843
Fix some clang static checker complaints. (#464)
The OpenOCD project looks at this, so once in a while I go through and
make sure our code is OK.

Change-Id: I50032c847f30e93604d83d6366cfad85918d6e66
2020-03-27 11:20:48 -07:00
Tim Newsome 5b2426a4b2
Deal with vlenb being unreadable. (#458)
Instead of exiting during examine(), spit out a warning, and don't
expose the vector data registers. We do provide access to the vector
CSRs, because maybe they do work? It's just that we have no idea what
the size of the data registers is.

Change-Id: I6e9ffeb242e2e22fc62cb1b50782c2efb4ace0bd
2020-03-26 09:08:56 -07:00
Tomas Vanek a2e822834d helper/binarybuffer: fix clang static analyzer warnings
Writing bits to an uninitialized buffer generated false warnings.
Zero buffers before setting them by buf_set_u32|64()
(do it only if bit-by-bit copy loop is used,
zeroed buffer is not necessary if a fast path write is used)

Change-Id: I2f7f8ddb45b0cbd08d3e249534fc51f4b5cc6694
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5383
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2020-03-07 15:30:05 +00:00
Antonio Borneo e7306d361b coding style: fix space around pointer's asterisk
The script checkpatch available in new Linux kernel offers an
experimental feature for automatically fix the code in place.
While still experimental, the feature works quite well for simple
fixes, like spacing.

This patch has been created automatically with the script under
review for inclusion in OpenOCD, using the command
	find src/ -type f -exec ./tools/scripts/checkpatch.pl \
	-q --types POINTER_LOCATION --fix-inplace -f {} \;
then manually reviewed.

OpenOCD coding style does not mention the space around pointer's
asterisk, so no check is enforced. This patch only makes the style
uniform across the files.

The patch only changes amount and position of whitespace, thus
the following commands show empty diff
	git diff -w
	git log -w -p
	git log -w --stat

Change-Id: Iefb4998e69bebdfe0d1ae65cadfc8d2c4f166d13
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5197
Tested-by: jenkins
2020-02-24 10:30:36 +00:00
Tim Newsome 1449af5bdb
Give control over dcsr.ebreak[msu] bits. (#451)
This allows a user to debug code that uses software breakpoints itself.

Change-Id: If40cb626354e11703017cdf8c5919a31e83ebc3f
2020-02-20 13:58:15 -08:00
Tim Newsome 95462a8a35
Add support for vector register access (#448)
* WIP

Change-Id: I0264a73b7f7d2ce89cc0b80692dbf81d9cdcc2fd

* Reading v* registers appears to work.

Can't really test it though, because gdb doesn't print them right.

Change-Id: I8d66339371c564a493d32f15c3d114b738a455c5

* Total hack to communicate registers to gdb.

Change-Id: Id06c819675f2a5bcaf751e322d95a7d71c633765

* Implement writing vector registers.

Fixed reading vector registers.

Change-Id: I8f06aa5ee5020b3213a4f68644c205c9d6b9d214

* Show gdb the actual size of the vector registers.

This length may be different per hart.

Change-Id: I92e95383da82ee7a5c995822a53d51b1ea933493

* Remove outdated todo comment.

Change-Id: Ic9158b002858f0d15a6452773b095aa5f4501128

* Removed TODO comment.

Filed #449 to track this.

Change-Id: I5277b19e545df2024f34cda39158ddf7d0d89d47

* Nicely handle some errors reading/writing V regs.

Change-Id: Ia7bb63a5f9433d9f7b46496b2c0994864cfc4a09
2020-02-14 14:54:05 -08:00
Tim Newsome 2f456abd55
Complain about debug version before authentication. (#441)
Change-Id: I769af8323545c2c18e4253a1543e9202f0bdfabc
2020-01-27 16:07:08 -08:00
Tim Newsome 69e6891434
Handle DMI busy in sba write. (#437)
* Handle DMI busy in sba write.

If we encounter DMI busy on the NOP after a read, we'll never get the
value out because DMI busy is sticky. The read must be retried, but we
don't know whether it was ever issued. Since the read has side effects
(incrementing of the address) this retry must be handled at a higher
layer. So now dmi_op_timeout can be told to retry or not, and if retry
is disabled it'll return an error when busy.

Also actually properly do the retry in dmi_op_timeout(). Previously the
code would not reissue the command and end up returning a garbage value.

Change-Id: I3b52ebd51ebbbedd6e425676ac861b57fbe711b1

* Fix whitespace.

Change-Id: Icb76d964e681b22346368d224d1930c9342343f3

* Handle a few more DMI busy cases.

Change-Id: I8503a44e4bf935c0ebfff0d598fe4c322fda702a

* Explain when to use dmi_op_timeout(retry).

Change-Id: I1a5c6d76ac41a84472a8f79faecb2f48105191ff

* dmi_reset does not affect the current transaction.

That means the retry scheme we had been using works fine. This does
contain some minor tweaks, and now we pass my tests which hammer the DMI
busy case harder.

Change-Id: I13eee384dbba82bc5a5b1d387c75c547afe557b5

* Remove unnecessary changes to make the PR readable

Change-Id: I87079876e6965563cf590e3936b3595aeab8715d

* Move idle to end of line...

... because we go through run-test/idle after the scan.

Change-Id: I21a8cff22471f0b895d8cd8d25373dced9bf1ca9

* Remove unused code.

Change-Id: I07a7cdd2d64ca40a4fe181111a34cf55ff1928d1
2020-01-13 15:10:43 -08:00
Jan Matyas fcea4f79ba Don't issue extra FENCE+FENCE.i for the current hart. (#439)
The original OpenOCD code issued FENCE & FENCE.i twice for the current
hart (which is harmless, but takes time).

Avoiding this extra FENCE is a slight performance improvement. Per my rough
measurements, this improves performance of certain debugger actions
(single-stepping) by approx. 20% in single-hart systems.
2020-01-10 12:29:10 -08:00
Jan Matyas e03dd199e0 Fixed write_memory_progbuf() on RV64. (#426)
Abstract write size (aarsize) to shall always match the real
size of the register. This is because abstract write of smaller size
than the register need not be supported per spec (pg. 13 of RISC-V
External Debug Support ver. 0.13.2).
2019-11-27 15:24:25 -08:00
Tim Newsome de00906ebd
Fix memory access on some targets. (#428)
Fix memory access on 64-bit targets with no progbuf and sba that
supports 32-bit accesses but not 64-bit accesses. Bug was introduced in #419.

This fixes https://github.com/riscv/riscv-tests/issues/217.

Change-Id: Ib5ddf9886b77e3d58fe1d891b560ad03d5a46da1
2019-11-22 11:37:46 -08:00
Jan Matyas 739d16d503 Fix: Take into account progbuf writability. (#424)
When allocating scratch memory within RISC-V target
(scratch_reserve()), take into account whether progbuf
is writable or not, as determined by examine_progbuf().
2019-11-20 12:00:00 -08:00
Greg Savin b7bd3f8d47 BSCAN batch fix (#422)
* fix for batch scans not honoring presence of BSCAN tunnel

* fix formatting to placate checkpatch

* replace DIM with ARRAY_SIZE

* Refactor code that adds a bscan tunneled scan.

* Move bscan tunnel context to the batch structure, and in array
form, one per scan

* adjust code that was inconsistent with project code formatting standards
2019-11-12 09:00:35 -08:00
Tim Newsome f93ede5401
Add support for 64-bit memory reads/writes (#419)
* 64-bit progbuf memory reads work.

Change-Id: Ia3dbc0ee39a31ed0e5c38bbb3d9e089b2533f399

* 64-bit writes work.

Change-Id: Iae78711d715b6682817bb7cce366b0094bda8b23

* Let targets indicate number of supported data bits.

This is used by the default memory read/write functions when creating an
aligned block.

I'm adding this mainly to ensure I get coverage of the 64-bit progbuf
memory read/write code.

Change-Id: Ie5909fe537c9ec3360a8d2837f84be00a63de77b

* Make mingw32 happy.

Change-Id: Iade8c1fdfc72ccafc82f2f34923577032b668916
2019-11-04 11:04:30 -08:00
Tim Newsome 3b4fcf471f The compliance test is poorly supported.
In reaction to #412.

Change-Id: I183bd8b4995c04e44cbc4f1c475eae391030fae6
2019-10-03 16:36:24 -07:00
darius-bluespec 20fc862b15 Perform SBA writes with batch transactions for improved performance. (#405)
* Add riscv_batch_available_scans().

This function will query the number of available scans in a batch.

* Perform SBA writes with batch transactions for improved performance.

Using batch transactions avoids an unnecessary dmi read after every
dmi write, resulting in a significant performance improvement.
2019-09-24 17:49:25 -07:00
Tim Newsome 274be9587f
Fix flashing HiFive Unleashed (#402)
* Align algorithm stack to XLEN.

This fixes algorithm timeout on RV64 targets.
Also improve debug information in various places.

Change-Id: Id3121f9c6e753c6a7e14da511e4de0587a6f7b4d

* Compile 32-bit RISC-V algorithms for RV32E.

Change-Id: I33a698c0c6ba540de29fa0459242c72a67b0cbaa

* Remove debug code.

Change-Id: I37c966ce0f2d1fe68cd6ae0724d19ae95ebaf51b

* Dump start of gdb packets escaping non-printable.

Change-Id: Ie5f36b5c9041bfc0e5aa9543f0afe2c4810c2915

* Propagate flash programming errors.

Change-Id: I0c938ce7a1062bcc93426538cbc82424000f37b7

* Improve debug messaging.

Change-Id: I47ac3518f3b241986c677824864102936100adf6

* Add debug output to flash image.

This is helpful when you're debugging the flash algorithm itself, and a
nop when running it through OpenOCD.

Change-Id: Id44c6498c288872cc2cec79044116ac38198c572

* Make timeout depend on how much data is written.

Change-Id: I819efa04cd6f6bd6664afd5c53cc7a8a5c84f54e

* Fix issi erase commands.

This is required to flash HiFive Unleashed.

Change-Id: I33e4869d1d05ca8a1df6136bccf11afda61bfe10

* Fix running algorithm on multicore `-rtos riscv`.

The bug was that poll() might change the currently selected hart, and in
that case we'd access registers on that other hart after the algorithm
is finished.

Change-Id: I140431898285cf471b372139cef2378ab4879377

* Make fespi flash algorithm debugging optional.

Also add a scheme that allows you to see the stack trace of where a
failure occurred if debugging is enabled.

Change-Id: Ia9a3a9a941ceba0f8ff6b47da5a8643e5f84b252
2019-09-09 12:01:17 -07:00
Tim Newsome 5173ddf75e
Use only one hart to run algorithm. (#396)
* Clear cmderr by writing all ones.

This should have been part of #389.

Change-Id: Ie40e95fdd904af65c53d1f5de7c8464b27038ec0

* Don't update reg cache in register_write_direct().

This function explicitly bypasses any caches.

Change-Id: Ie3c9a1163e870f80c0ed75b74495079c527663e9

* Use only one hart to run algorithm.

Fixes a bug with `-rtos hwthread` where all harts would run when running
a flash/CRC algorithm, which would probably ruin flashing, and was
unexpectedly changing registers on other harts for the CRC algorithm.

Change-Id: Ia2f600624f4c8d4cab319861fef2c14722f08b53
2019-08-26 11:24:29 -07:00
dave-estes-syzexion cd7eea6d76 Adds support for RISCV Access Memory Abstract Commands (#394)
* Adds support for RISCV Access Memory Abstract Commands

The Access Memory Abstract Command is one of the three optional
methods for reading and writing memory on a complient RISCV
debug module. The previous two options were already implemented
in OpenOCD.

Implementation Notes:
- aamvirtual is hard-coded to false until the design for accessing
  virtual addresses is finalized.
- aamsizes corresponding to 8b, 16b, 32b, and 64b are supported.
  128b support is postponed until it is required, as it will mean
  changes to the read/write_abstract_arg() interface to pass 128b
  values.
- aampostincrement is not used and hard-coded to false.

* Changes from review.

* Additional lint fixes and a typo from last commit.

* Fixing a clang error.

* Fixes a last-minute change that broke writes with width > 8b.

* Removing memcpy after adding read_from_buf().
2019-08-19 14:03:20 -07:00
Tim Newsome 7eaf60f1b5
Properly detect errors in SBA reads. (#392)
Also don't set/clear sbreadondata when only reading one word.

Change-Id: Ia81834014895f1f4b552312ad0b60b3d3967a2c7
2019-07-26 11:08:35 -07:00
Nils Wistoff 239a515a9c Access memory through the scope of current privilege level (#386)
* add opcode for csrrsi and csrrci

* enable MMU while reading/writing memory using progbuf

* fix style issues

* keep old behavior for progbufsize<4, perform r/w/csr only when necessary

* do not pass progbufsize, only write mstatus if changed

* add config option to enable virtualization feature

* throw error if virt enabled but unavaliable, outsource modify_privilege

* support virtualization for read_memory_progbuf_one
2019-07-18 13:15:28 -07:00
Tim Newsome 09016bcb6e
Optimize reading a single byte/short/word. (#390)
gdb has developed a nasty habit of very often reading 30-some
half-words. This change speeds that up significantly.

Change-Id: Iab1b7575bec5c57051c6e630ae292dddf8fe6350
2019-07-15 10:34:40 -07:00
Tim Newsome 9b34f8ca3c
Write all ones to clear cmderr. (#389)
Change-Id: Ia76e749ed9f5a5f3509f253eeb69d1208bcfc929
2019-07-15 10:33:52 -07:00
Tim Newsome 91faf1a573
Reduce abstract command execution by one scan. (#383)
Speeds up Arty flashing another 7%.

```
wrote 2228224 bytes from file /media/sf_tnewsome/SiFive/arty_images/arty.E21TraceFPGAEvaluationConfig.mcs in 96.997032s (22.434 KiB/s)
verified 2192012 bytes in 6.642059s (322.285 KiB/s)
11.86user 12.75system 1:44.13elapsed 23%CPU (0avgtext+0avgdata 18684maxresident)k
```

Change-Id: If609ce3de1726332f420d131e9fa6e04a5d974a1
2019-06-21 09:59:28 -07:00
Tim Newsome bb03f79bde
Improve block read and checksum speed (#381)
* Cache program buffer writes.

Speeds up flash program by 3%, flash verify by 2%.

Change-Id: I19f8f44f560a1111fa8f4e4fc04ce6de3c94999a

* Remove nop from batch reads.

program @ 22.123 KiB/s, verify @ 47.654 KiB/s (up from program @ 20.287
KiB/s, verify @ 23.148 KiB/s originally).

Change-Id: I7ee19d967b1080336b0088d20e1fc30828afd935

* Use "algorithm" to compute CRC on RISC-V targets.

Use the C compiler to generate the algorithm code. It's better at
assembly than I am. We need separate RV32 and RV64 binaries to handle
shift instructions. I used the code from gdb (libiberty really) because
it returns the correct result. I'm not sure if the table is worth it
since we do have to save/download/restore more bytes now.

riscv_run_algorithm() now properly saves and reads back all registers
used for parameters. It also doesn't check final_pc if exit_point is 0.
Using gdb means I don't know the exact address where the code will end.

Small target.[ch] change to be able to run algorithms at 64-bit
addresses.

Flashing an arty board now:
```
wrote 2228224 bytes from file /media/sf_tnewsome/SiFive/arty_images/arty.E21TraceFPGAEvaluationConfig.mcs in 105.589180s (20.608 KiB/s)
verified 2192012 bytes in 7.037476s (304.177 KiB/s)
9.87user 16.16system 1:53.16elapsed 23%CPU (0avgtext+0avgdata 24768maxresident)k
```

Change-Id: I6696bd4cda7c89ac5ccd21b2ff3aa1663d7d7190

* Clean up formatting.

Change-Id: I7f2d792a2b9432a04209272abb00d8136ee01025
2019-06-19 10:56:37 -07:00
Tim Newsome c05ad1a92a
Set mstatus.FS to access FPU CSRs. (#380)
This improves behavior when executing function calls from mainline gdb.

Change-Id: Ia37507a16cd76fc03d26457e84fd68402969c534
2019-06-14 15:55:56 -07:00
Paul George fd9c54b1fe Inverted Frame to Pseudo Tap for Simpler Hardware to Decode DR (#373)
* Inverted Frame to Pseudo Tap for Simpler Hardware to Decode

Given the variable supported message length , a prefix  decoding approach is significantly simpler for a pseudo tap architecture with a shift reg of len =  max len of packet. This prefix coding packet also makes the message len field redundant , as that is implict in ir_len and the ir selected.

* style patch

* non-conflict with original

* style patch

* style patch

* requested changes

* style-patch
2019-06-10 13:33:50 -07:00
Tim Newsome 998fed1fe7
Don't write sbcs while sbbusy is set. (#375)
* Fix small SBA bug.

We were not compliant with the spec, but I'm not sure if this was
causing problems for anybody.

Change-Id: Ia31ee400fd75ad907349c4dd995b1e03bd2116c7

* Don't write sbcs while sbbusy is set.

Probably not hurting anything, but the spec says we shouldn't.
Also propagate more errors, and fully decode sbcs in debug output.

Change-Id: I1a36646772fe794c8780702565103a309bbcc5e9
2019-05-21 14:40:47 -07:00
Philipp Wagner 44f595b2b8 RISC-V: Make compliance tests more verbose (#366)
Currently the RISC-V compliance test suite doesn't output the test is
currently runs before it succeeds. It also uses the same message for
many tests. This makes it very hard to find out which test fails.

This commit makes things slightly easier by printing the test that's
being executed before it actually runs, and by adding the source code
line where the test is located, making it easier to look up the test in
the source code.

New output looks like this:

Info : Executing test 149 (riscv-013.c:3800): Regular calls must return ERROR_OK
Info :   PASSED
2019-05-20 13:36:41 -07:00
Philipp Wagner 45b5178b1a RISC-V compliance test: target must be examined (#367)
The test assumes that the target has been examined. If that fails (for
whatever reason) the test will segfault:

Program received signal SIGSEGV, Segmentation fault.
register_cache_invalidate (cache=0x0) at ../src/target/register.c:109
109             struct reg *reg = cache->reg_list;
(gdb) bt
0  register_cache_invalidate (cache=0x0) at ../src/target/register.c:109
1  0x0000000000520735 in riscv_invalidate_register_cache (target=target@entry=0x779b50) at ../src/target/riscv/riscv.c:2160
2  0x000000000052224f in riscv_halt_all_harts (target=target@entry=0x779b50) at ../src/target/riscv/riscv.c:2022
3  0x0000000000574e82 in riscv013_test_compliance (target=0x779b50) at ../src/target/riscv/riscv-013.c:3600
2019-05-20 13:35:58 -07:00
Tim Newsome 5cb2f200f8
Simultaneous halt (#372)
* WIP

Change-Id: I4f50dced77e9ded4a58ab152824a841a73bc0dc1

* riscv_halt() only halt harts that are running.

Progress towards simultaneous halt.

Change-Id: I749b6d9ba5e77aa7aca4342c7af841312b78be0e

* -rtos riscv passes.

But dual gdb is failing again.

Change-Id: I1747ba42ce3f3062f6e8c28a75ac40e17f80e980

* Dual gdb works again.

-rtos riscv still works.

Change-Id: Idddddda79e5918b26e181384def1a305ecceced2

* -rtos hwthread almost completely works.

Change-Id: I845feb0bd93484e28ca8620f4760c234d4ce5310

* Maybe better?

Change-Id: I669c67e83acf1b749bfb534d3b3c0915c129d686

* All three methods work.

Change-Id: If77074fa43f6420d1ec9b594fe366415f5a41f2c

* Fix hitting hardware triggers with `-rtos riscv`.

Change-Id: I8d4600e1c66fa0e3b9d986b96a5973d09f40735c

* Fix halting dual core E31.

Change-Id: Ic2d885e027312b68e2f3c6854957fbfee09f814b

* Not addressing this TODO right now.

Change-Id: Ic7c0d32424068ae1de04d37d15a411c1957207c4

* Remove duplicate line.

Change-Id: I14fe8d422f23c97afdaa20a02c0e3ab568219467
2019-05-09 11:32:04 -07:00
Greg Savin 5190dd4cef
Support for driving RISC-V DM via Arty's own JTAG chain using BSCAN tunnel (#370)
Including adjustments in response to review comments.
2019-04-23 16:25:22 -07:00
Tim Newsome d78ff5ab4e Propagate some errors in execute_abstract_command().
Change-Id: Ia3ec457dd5d65378a6c922802713e36d6828bcea
2019-04-09 10:55:25 -07:00
Tim Newsome c089e6ae9a
Support simultaneous resume using hasel (#364)
* Remove unnecessary 0.11 code.

Don't need need_strict_step anymore now that we have
riscv_hit_watchpoint().

Don't need 32-bit warning in riscv011_resume() now that address is a
target_address_t.

Change-Id: I375c023a7ec9f62d80b037ddb64d14526ba0a3dc

* WIP little refactor working towards hasel support.

Change-Id: Ie0b8dfd9e5ae2e36613fa00e14c3cd32749141bf

* More refactoring.

Change-Id: I083387c2ecff78ddfea3ed5078444732d77b909b

* More refactoring.

Change-Id: Icea1308499492da51354f89e1529353e8385f3a1

* Starting to work towards actual hasel changes.

Change-Id: If0df05ffa66cc58400b4855f9630a8b1bae3030e

* Implement simultaneous resume using hasel.

Change-Id: I97971d7564fdb159d2052393c8b82a2ffaa8833f

* Add support back for targets that don't have hasel.

Change-Id: I6d5439f0615d5d5333127d280e4f2642649a119a

* Make hasel work with >32 harts.

Change-Id: I3c55009d48bfc5dd62e3341df4e4bd21df2fe44f
2019-04-03 12:13:09 -07:00
Tim Newsome bc72695f67 Lots of RISC-V improvements.
This represents months of continuing RISC-V work, with too many changes
to list individually. Some improvements:
* Fixed memory leaks.
* Better handling of dbus timeouts.
* Add `riscv expose_custom` command.
* Somewhat deal with cache coherency.
* Deal with more timeouts during block memory accesses.
* Basic debug compliance test.
* Tell gdb which watchpoint hit.
* SMP support for use with -rtos hwthread
* Add `riscv set_ir`

Change-Id: Ica507ee2a57eaf51b578ab1d9b7de71512fdf47f
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4922
Tested-by: jenkins
Reviewed-by: Philipp Guehring <pg@futureware.at>
Reviewed-by: Liviu Ionescu <ilg@livius.net>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2019-03-27 08:53:09 +00:00