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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/11/09 07:49:38 UTC
[GitHub] [incubator-nuttx] zhuyanlinzyl opened a new pull request #4810: debug: add tools for task aware debug
zhuyanlinzyl opened a new pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810
## Summary
Patch 1: add tcb strcut for task-aware debug information
Patch 2: add tcbinfo struct in procfs
Patch 3: add plugin in JLinkGDBServer for nuttx thread aware
## Impact
No. Enhance nuttx debug feature.
## Testing
When nuttx config with `CONFIG_DEBUG_TCBINFO`.
We can debug nuttx with nuttx thread aware.
```
make -f Makefile.host jlink-nuttx.so
JLinkGDBServer -if SWD -device Cortex-M55 -rtos /home/zyl/miwear/nuttx/tools/jlink-nuttx
1 show nuttx threads
```
Id Target Id Frame
* 2 Thread 1 ([PID:000]Idle Task:0003[PRI:000]) nx_start () at init/nx_start.c:797
3 Thread 2 ([PID:001]hpwork:0005[PRI:224]) arm_switchcontext (saveregs=0x3c00927c, restoreregs=0x3c00c5ac) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
4 Thread 19 ([PID:018]rpmsg-uorb-sens:0005[PRI:100]) arm_switchcontext (saveregs=0x3c015fbc, restoreregs=0x3c00efdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
5 Thread 4 ([PID:003]bes_main:0005[PRI:101]) arm_switchcontext (saveregs=0x3c00ae1c, restoreregs=0x3c00a2ec) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
6 Thread 5 ([PID:004]rptun:0005[PRI:224]) arm_switchcontext (saveregs=0x3c00c5ac, restoreregs=0x3c010fac) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
7 Thread 6 ([PID:005]rptun:0005[PRI:224]) arm_switchcontext (saveregs=0x3c00d43c, restoreregs=0x3c012acc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
8 Thread 7 ([PID:006]rptun:0005[PRI:224]) arm_switchcontext (saveregs=0x3c00e29c, restoreregs=0x2000972c <g_idletcb+140>) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
9 Thread 8 ([PID:007]init:0005[PRI:100]) arm_switchcontext (saveregs=0x3c00efdc, restoreregs=0x2000972c <g_idletcb+140>) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
10 Thread 11 ([PID:010]thread-10:0005[PRI:101]) arm_switchcontext (saveregs=0x3c00a2ec, restoreregs=0x3c00efdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
11 Thread 13 ([PID:012]kvdbd:0005[PRI:100]) arm_switchcontext (saveregs=0x3c011cfc, restoreregs=0x3c013cdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
12 Thread 14 ([PID:013]rpmsg-gpio:0005[PRI:224]) arm_switchcontext (saveregs=0x3c012acc, restoreregs=0x3c00efdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
13 Thread 15 ([PID:014]rpmsg-uorb-audio:0005[PRI:100]) arm_switchcontext (saveregs=0x3c013cdc, restoreregs=0x3c014e2c) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
14 Thread 16 ([PID:015]rpmsg-uorb-cp:0005[PRI:100]) arm_switchcontext (saveregs=0x3c014e2c, restoreregs=0x3c015fbc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
2 change nuttx thread
```
(gdb) thread 4
[Switching to thread 4 (Thread 19)]
#0 arm_switchcontext (saveregs=0x3c015fbc, restoreregs=0x3c00efdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
121 return reg0;
3 show task backtrace
```
(gdb) bt
#0 arm_switchcontext (saveregs=0x3c015fbc, restoreregs=0x3c00efdc) at /home/zyl/code/m1ap/nuttx/include/arch/armv8-m/syscall.h:121
#1 0x2c016ab6 in up_block_task (tcb=tcb@entry=0x3c015f30, task_state=task_state@entry=TSTATE_WAIT_SEM) at armv8-m/arm_blocktask.c:139
#2 0x2c008338 in nxsem_wait (sem=sem@entry=0x3c016b44) at semaphore/sem_wait.c:153
#3 0x2c03d054 in poll_semtake (sem=0x3c016b44) at vfs/fs_poll.c:59
#4 nx_poll (fds=fds@entry=0x3c015ca8, nfds=32, timeout=1006721824) at vfs/fs_poll.c:439
#5 0x2c03d0c0 in poll (fds=fds@entry=0x3c015ca8, nfds=<optimized out>, timeout=<optimized out>) at vfs/fs_poll.c:500
#6 0x2c00927c in ppoll (fds=fds@entry=0x3c015ca8, nfds=738386121, nfds@entry=32, timeout_ts=timeout_ts@entry=0x0, sigmask=sigmask@entry=0x3c016c00) at signal/sig_ppoll.c:122
#7 0x2c02e0c8 in uorb_rpmsg_task (argc=<optimized out>, argv=<optimized out>) at uORB/uORBRpmsg.cpp:404
#8 0x2c00fa42 in nxtask_startup (entrypt=entrypt@entry=0x2c02dfd5 <uorb_rpmsg_task(int, char**)>, argc=<optimized out>, argv=<optimized out>) at sched/task_startup.c:151
#9 0x2c00971a in nxtask_start () at task/task_start.c:130
#10 0x00000000 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-968347630
@xiaoxiang781216 What do you mean `SoC` Make.defs?
I am trying this on an ARM Cortex M3, and I am using the NuttX `arch` files.
I have only provided the `board` part, which does not seem related.
Shouldn't this file be included in the build just like the rest of the `arm_*.c` files?
The rest seem properly being build by NuttX, I didn't provide any external rules for them.
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-978002674
> What's result if you add -fPIC?
It builds successfully, I have yet to test it though...
> Which OS do you compile? @zhuyanlinzyl could you take a look?
Fedora 34
`Linux workstation 5.14.16-201.fc34.x86_64 #1 SMP Wed Nov 3 13:57:29 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
`
with GCC:
```
$ gcc --version
gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```
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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-968465953
arm_tcbinfo.c is a new addition, so you need add it to this file:
https://github.com/apache/incubator-nuttx/blob/master/arch/arm/src/stm32/Make.defs#L21-L31
just like other common source file
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-968158514
This is not building for me.
After enabling `CONFIG_DEBUG_TCBINFO` I get:
```
nuttx/fs/procfs/fs_procfstcbinfo.c:227: undefined reference to `g_tcbinfo'
```
I think that `arm_doirq.c` is not included in the build.
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[GitHub] [incubator-nuttx] acassis merged pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
acassis merged pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810
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[GitHub] [incubator-nuttx] gustavonihei commented on a change in pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
gustavonihei commented on a change in pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#discussion_r745596713
##########
File path: tools/jlink-nuttx.c
##########
@@ -0,0 +1,643 @@
+/****************************************************************************
+ * tools/jlink-nuttx.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Marco for JLINK plugin API */
Review comment:
```suggestion
/* Macros for J-Link plugin API */
```
nit: Fix typo and adjust J-Link name
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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-968195575
@fjpanag you need add arm_tcbinfo.c to your SoC Make.defs.
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-968348183
I just freshly cloned nuttx and apps.
I tried:
```
./tools/configure.sh -l stm32f4discovery:nsh
make all
```
and the build succeeds.
I then enabled `DEBUG_TCBINFO` and the build fails in the same way.
I guess this does not have to do with my configuration.
Build fails even for the standard configurations, as provided out-of-the-box.
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-978015867
Well, in fact I just tried it.
It crashes with a SEGFAULT:
```
$ JLinkGDBServer -if swd -device STM32F427VI -endian little -speed 1000 -port 2331 -swoport 2332 -telnetport 2333 -vd -ir -localhostonly 1 -singlerun -strict -timeout 0 -nogui -rtos /path/nuttx/tools/jlink-nuttx.so
SEGGER J-Link GDB Server V7.54c Command Line Version
JLinkARM.dll V7.54c (DLL compiled Sep 20 2021 13:59:21)
Command line: -if swd -device STM32F427VI -endian little -speed 1000 -port 2331 -swoport 2332 -telnetport 2333 -vd -ir -localhostonly 1 -singlerun -strict -timeout 0 -nogui -rtos /path/nuttx/tools/jlink-nuttx.so
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: localhost only
Generate logfile: off
Verify download: on
Init regs on start: on
Silent mode: off
Single run mode: on
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: STM32F427VI
Target interface: SWD
Target interface speed: 1000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link V11 compiled Sep 7 2021 11:22:27
Hardware: V11.00
S/N: ********
Feature(s): GDB
Checking target voltage...
Target voltage: 3.28 V
Listening on TCP/IP port 2331
Connecting to target...
Connected to target
Waiting for GDB connection...Connected to 127.0.0.1
Reading all registers
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0xFFFFFFFC (Data = 0x00000000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0xFFFFFFFC (Data = 0x00000000)
Read 2 bytes @ address 0x00000000 (Data = 0x8000)
Read 2 bytes @ address 0xFFFFFFFE (Data = 0x0000)
Read 2 bytes @ address 0xFFFFFFFC (Data = 0x0000)
Read 2 bytes @ address 0x00000000 (Data = 0x8000)
Read 2 bytes @ address 0xFFFFFFFE (Data = 0x0000)
Read 2 bytes @ address 0xFFFFFFFC (Data = 0x0000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0xFFFFFFFC (Data = 0x00000000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0xFFFFFFFC (Data = 0x00000000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 4 bytes @ address 0x00000000 (Data = 0x10008000)
Read 2 bytes @ address 0x00000000 (Data = 0x8000)
Received monitor command: speed 1000
Target interface speed set to 1000 kHz
Received monitor command: clrbp
Received monitor command: reset
Resetting target
Received monitor command: halt
Halting target CPU...
...Target halted (PC = 0x000001B4)
Received monitor command: regs
R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000
R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000
R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000
R12= 00000000, R13= 10008000, MSP= 10008000, PSP= 00000000
R14(LR) = FFFFFFFF, R15(PC) = 000001B4
XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000
CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00
Security extension regs:
MSP_S = 00000000, MSPLIM_S = 00000000
PSP_S = 00000000, PSPLIM_S = 00000000
MSP_NS = 10008000, MSPLIM_NS = 00000000
PSP_NS = 00000000, PSPLIM_NS = 00000000
CONTROL_S 00, FAULTMASK_S 00, BASEPRI_S 00, PRIMASK_S 00
CONTROL_NS 00, FAULTMASK_NS 00, BASEPRI_NS 00, PRIMASK_NS 00
Reading all registers
Received monitor command: speed auto
Select auto target interface speed (2000 kHz)
Received monitor command: flash breakpoints 1
Flash breakpoints enabled
Received monitor command: semihosting enable
Semi-hosting enabled (Handle on BKPT)
Received monitor command: semihosting IOClient 1
Semihosting I/O set to TELNET Client
Received monitor command: SWO DisableTarget 0xFFFFFFFF
SWO disabled successfully.
Received monitor command: SWO EnableTarget 0 0 0x1 0
SWO enabled successfully.
Loading RTOS plugin: //path/nuttx/tools/jlink-nuttx.so...
RTOS plugin (API v1.0) loaded successfully
RTOS plugin: Loaded
Received symbol: g_pidhash (0x200009E4)
Received symbol: g_npidhash (0x200009E8)
Received symbol: g_tcbinfo (0x0003A938)
Received symbol: g_readytorun (0x200009B4)
All mandatory symbols successfully loaded.
All mandatory symbols successfully loaded.
Downloading 16240 bytes @ address 0x00000000 - Verified OK
Downloading 16368 bytes @ address 0x00003F70 - Verified OK
Downloading 160 bytes @ address 0x00007F60 - Verified OK
Downloading 4096 bytes @ address 0x00008000 - Verified OK
Downloading 412 bytes @ address 0x00010000 - Verified OK
Downloading 256 bytes @ address 0x00010200 - Verified OK
Downloading 15936 bytes @ address 0x00010300 - Verified OK
Downloading 16016 bytes @ address 0x00014140 - Verified OK
Downloading 16064 bytes @ address 0x00017FD0 - Verified OK
Downloading 16016 bytes @ address 0x0001BE90 - Verified OK
Downloading 16032 bytes @ address 0x0001FD20 - Verified OK
Downloading 16032 bytes @ address 0x00023BC0 - Verified OK
Downloading 16032 bytes @ address 0x00027A60 - Verified OK
Downloading 16016 bytes @ address 0x0002B900 - Verified OK
Downloading 16016 bytes @ address 0x0002F790 - Verified OK
Downloading 16032 bytes @ address 0x00033620 - Verified OK
Downloading 13621 bytes @ address 0x000374C0 - Verified OK
Downloading 8 bytes @ address 0x0003A9F8 - Verified OK
Downloading 716 bytes @ address 0x0003AA00 - Verified OK
Segmentation fault (core dumped)
```
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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-974599590
> @xiaoxiang781216 sorry for the late reply.
>
> I added `arm_tcbinfo.c` to the propposed file, and indeed NuttX builds and runs fine now. Shouldn't this PR also add `arm_tcbinfo.c ` to the makefiles?
>
could be.
> Furthermore, I tried building the JLink lib, but it also fails:
>
> ```
> $ make -C tools -f Makefile.host jlink-nuttx
> make: Entering directory '/home/a/b/c/nuttx/tools'
> /usr/bin/ld: /tmp/ccDMkc8Y.o: relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
What's result if you add -fPIC?
> collect2: error: ld returned 1 exit status
> make: *** [Makefile.host:231: jlink-nuttx.so] Error 1
> make: Leaving directory '/home/a/b/c/nuttx/tools'
> ```
Which OS do you compile? @zhuyanlinzyl could you take a look?
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[GitHub] [incubator-nuttx] zhuyanlinzyl commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
zhuyanlinzyl commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-963966665
Please ignore the "Mixed case" checkpatch error. As there are SEGGER JLINK plugin API defination.
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[GitHub] [incubator-nuttx] fjpanag commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
fjpanag commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-974197077
@xiaoxiang781216 sorry for the late reply.
I added `arm_tcbinfo.c` to the propposed file, and indeed NuttX builds and runs fine now.
Shouldn't this PR also add `arm_tcbinfo.c ` to the makefiles?
Furthermore, I tried building the JLink lib, but it also fails:
```
$ make -C tools -f Makefile.host jlink-nuttx
make: Entering directory '/home/a/b/c/nuttx/tools'
/usr/bin/ld: /tmp/ccDMkc8Y.o: relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
collect2: error: ld returned 1 exit status
make: *** [Makefile.host:231: jlink-nuttx.so] Error 1
make: Leaving directory '/home/a/b/c/nuttx/tools'
```
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[GitHub] [incubator-nuttx] xiaoxiang781216 commented on pull request #4810: debug: add tools for task aware debug
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 commented on pull request #4810:
URL: https://github.com/apache/incubator-nuttx/pull/4810#issuecomment-974599590
> @xiaoxiang781216 sorry for the late reply.
>
> I added `arm_tcbinfo.c` to the propposed file, and indeed NuttX builds and runs fine now. Shouldn't this PR also add `arm_tcbinfo.c ` to the makefiles?
>
could be.
> Furthermore, I tried building the JLink lib, but it also fails:
>
> ```
> $ make -C tools -f Makefile.host jlink-nuttx
> make: Entering directory '/home/a/b/c/nuttx/tools'
> /usr/bin/ld: /tmp/ccDMkc8Y.o: relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
What's result if you add -fPIC?
> collect2: error: ld returned 1 exit status
> make: *** [Makefile.host:231: jlink-nuttx.so] Error 1
> make: Leaving directory '/home/a/b/c/nuttx/tools'
> ```
Which OS do you compile? @zhuyanlinzyl could you take a look?
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