I've read several Q&As here regarding the fact that OpenSSL tries different instructions to test if cpu supports them, which causes SIGILL. But those answers usually state that OP was running the app under gdb, but I'm not. So my app on OpenWrt MIPS router actually crashes when using OpenSSL, whenever I make a call to OpenSSL library. The crash is illegal instruction. I actually don't have a backtrace, though my app is a debug build. It works fine on Ubuntu and MacOS.
I made sure that both my executable and ssl libs are of the same cpu architecture.
Result of cat /proc/cpuinfo:
system type : Atheros AR9330 rev 1
machine : 8devices Carambola2 board
processor : 0
cpu model : MIPS 24Kc V7.4
BogoMIPS : 265.42
wait instruction : yes
microsecond timers : yes
tlb_entries : 16
extra interrupt vector : yes
hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb]
isa : mips1 mips2 mips32r1 mips32r2
ASEs implemented : mips16
shadow register sets : 1
kscratch registers : 0
package : 0
core : 0
VCED exceptions : not available
VCEI exceptions : not available
What worries me is that toolchain toolchain-mips_34kc_gcc-5.2.0_musl-1.1.11 mentions 34kc in its name. I wonder if it's ok to build with this toolchain for 24 Kc cpu. Though everything else except for openssl works fine.
So could you please answer what are my options to fix it?
I don't know what the problem was, but the app didn't work with the openssl library provided in the toolchain and copied to target board. When libopenssl was installed via opkg from official carambola2 repos, the problem is gone. So it must have been some incompatibility.
Related
Okay I have this issue for quite some time now because I never found a solution online.
I thought I will ask here and hope if someone else also encountered this issue (and with a little luck solved it).
So the expected behavior of those buttons starting with the left circled one is that the code is compiled, flashed and runs on the embedded hardware. The second circled one is the same as previous but will listen to breakpoints and start a gdb server.
When pressing the first button it will fail with the following error message:
[0mOpen On-Chip Debugger 0.10.0 (2020-07-29) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
libusb1 09e75e98b4d9ea7909e8837b7a3f00dda4589dc3
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
WARNING: interface/stlink-v2.cfg is deprecated, please switch to interface/stlin
k.cfg
Info : auto-selecting first available session transport "hla_swd". To override u
se 'transport select <transport>[0m'.
Info : The selected transport took over low-level target control. The results mi
ght differ compared to plain JTAG/SWD
Info : clock speed 2000 kHz
Info : STLINK V2J37S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.218361
Info : STM32F439VIT6.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : starting gdb server for STM32F439VIT6.cpu on 3333
Info : Listening on port 3333 for gdb connections
semihosting is enabled
Error: The 'tcl_port' command must be used before 'init'.
But when pressing the second button (debug), it will flash, run the code and start a gdb server all without problems.
The tooling used is:
OpenOCD (version: OpenOCD-20200729-0.10).
Clion (version: 2021.1 but problem persists on previous version) as my IDE.
mingw64 installed via msys.
arm gdb debugger (version 8.3.1)
If you have an idea what the problem could be, please let me know. I can keep using debug without breakpoints but it is annoying as hell that I just can't run.
Somewhere down the line a fix was needed for something.
# Enable semihosting at startup
# Dirty fix for https://youtrack.jetbrains.com/issue/CPP-7103
init
arm semihosting enable
Commenting the init and arm semihosting enable line fixed the problem.
Still weird it would work in debug configuration but not in run configuration. If someone knows why exactly. Please leave an answer in the comments or a post.
Happy coding :)
I am having trouble getting a reliable debugging setup.
I have seen other threads in some forums across the net with a similar title, but the circumstances seem different.
Setup:
Linux (Xubuntu) 64bit
Eclipse CDT, Neon 4.6.0
"GDB Hardware Debugging" plugin from eclipse "install new software", configured to reset & delay 3sec, halt; load symbols (all checkboxes, no custom commands)
arm-none-eabi-gcc 4.8.3 tool chain
OpenOCD, recently downloaded, running in an own console, configured for my exact MCU with script provided by them & the st-link
STM32L476RG MCU with hard float, which is used.
ST-Link V2 debugger (stand-alone)
Now, there is a sequence with which I am, after some struggle every time, able to connect with the debugger, but stepping and reading variables doesn't work so clearly reliable that I'd trust what I see for a second.
But to even get to that point where the call stack would not be full of obvious nonsense entries and only very few of them, is tiring.
Example:
Flash the device with the firmware. This usually works without trouble.
Start openocd.
Start debugging in Eclipse.
OpenOcd shows connection, then says: "undefined debug reason 7 - target needs reset"
I regardless press the "resume" button in Eclipse to make the program run past the bogus top stack frame it shows.
Press "suspend" (still bogus in callstack), then "terminate".
Ctrl+C out of OpenOcd.
Manually (hardware) reset the stm32 MCU.
Restart OpenOcd.
Start debugging in Eclipse again.
OpenOCD output:
GNU ARM Eclipse 64-bits Open On-Chip Debugger 0.10.0-dev-00287-g85cec24-dirty (2016-01-10-10:31)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select '.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 500 kHz
adapter_nsrst_delay: 100
none separate
none separate
Info : Unable to match requested speed 500 kHz, using 480 kHz
Info : Unable to match requested speed 500 kHz, using 480 kHz
Info : clock speed 480 kHz
Info : STLINK v2 JTAG v24 API v2 SWIM v4 VID 0x0483 PID 0x3748
Info : using stlink api v2
Info : Target voltage: 3.192646
Info : stm32l4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting 'gdb' connection on tcp/3333
Info : device id = 0x10076415
Info : flash size = 1024kbytes
undefined debug reason 7 - target needs reset
Now with some luck, I finally have a somewhat working debugger connection, for a while.
But this may as well need some repetitions.
Why the "press resume" in between when it's clear the connection is bad? Not sure, this seemed to increase the likelihood that in the next iteration I'll have the connection, a lot.
A maybe relevant note:
The MCU has an LCD connected to it and from that I can see when it resets.
For some reason, starting debugging in Eclipse will apparently not reset the device, although the reset checkbox is checked in the debug config.
If I open a telnet connection to OpenOCD in a terminal, and do "reset" there, the device does reset.
What could be causes for the odd behavior of my setup?
What OpenOCD client you're using? I made a mistake using the host gdb and I got this error. And after I modified my debugger path to the location of my arm-none-eabi-gdb in "Debug Configuration" of your eclipse the problem disappeared.
From your post you only mentioned you used arm-none-eabi-gcc toolchain, so don't know if you set your gdb to arm-none-eabi-gdb in "Debug Configurations", which is separate from project toolchain settings.
Another version of OpenOCD helped me. Met a similar issue with OpenOCD 0.10.0 from http://gnuarmeclipse.github.io. Initially it worked then the issue appeared. Removed it and installed the build from http://www.freddiechopin.info.
I am Mac OS 10.11 (El Capitan) user. I used 4.6 and when I tried to build some simulation I always get "Simulation terminated with exit code: 139" and couldn’t do nothing at all with that. I thought that when I install 5.0 then everything will be fine, but now I get something like that:
Simulation terminated with exit code: 132
Working directory: /Users/JL_Data/omnetpp-5.0/samples/tictoc
Command line: tictoc -r 0 --debug-on-errors=false omnetpp.ini
Environment variables:
PATH=/Users/JL_Data/omnetpp-5.0/bin::/usr/bin:/bin:/usr/sbin:/sbin
DYLD_LIBRARY_PATH=/Users/JL_Data/omnetpp-5.0/lib::
OMNETPP_IMAGE_PATH=/Users/JL_Data/omnetpp-5.0/images
And when I tried open some simulation in terminal I get:
Illegal instruction: 4
Do you have some idea what can I do with that problem? I tried to find something on the internet, but after one day I do not get any idea.
If you need some more information, please let me know.
As it is right now, your question is not completely clear, since it requires one to be familiar with omnet++ and probably some experience installing and setting it up. However, let me make a couple guesses.
First, Illegal instruction. This usually occurs when the binary was built for an architecture different than the one it's being run on; e.g. when then SSE2 or AVX instructions are present in the binary code, but are missing on the CPU.
See, for example, this SO question:
Find which assembly instruction caused an Illegal Instruction error without debugging
There is also a question that discusses exactly your problem, namely, "Illegal instruction: 4" on OS X:
What is the "Illegal Instruction: 4" error and why does "-mmacosx-version-min=10.x" fix it?
Now, since omnet++ appears to be an open source project, I expect it to have a mailing list and / or an IRC channel. Indeed, here is the communications page on the official website that links to a Google Groups-based mailing list:
https://omnetpp.org/get-involved
https://groups.google.com/forum/#!forum/omnetpp
I advise you to get in touch with the developers with a thorough description of your problem, since the chances of them knowing the solution are significantly higher compared to the chances of there being a user on SO who has faced similar problems when installing an identical version of omnet++ on an identical version of Mac OS X.
I am trying to run the Woden Physics Example inside Pharo which involves getting Bullet properly compiled and the smalltalk bindings properly installed in Pharo.
I am using Linux Mint 17 x64.
But NativeBoost seems unable to load the compiled libraries. I have been using the sources provided here:
https://github.com/ronsaldo/bullet-pharo
https://github.com/ronsaldo/swig
I built the modified version of swig as well as the bullet libraries and bindings with the provided build scripts.
I also have doublechecked that the bullet libraries are 32 bit.
Opening up the Woden physics example returns this error:
failed to get a symbol address:
PharoNB_new_BTDefaultCollisionConfiguration__SWIG_1
When examining the call stack in the debugger, it turns out that the module handle is 0.
I verified this by executing the same message as
BulletCInterface nbLibraryNameOrHandle
executes:
NativeBoost forCurrentPlatform loadModule: 'BulletPharo'
This message returns 0. I tried to specify the full path to libPharoBullet.so in the workspace, like:
NativeBoost forCurrentPlatform loadModule:
'/home/martin/.local/share/Pharo/bullet-pharo/libBulletPharo.so'
with the same result. I also verified it with a 32 bit system library of mine (liblzma) and there NativeBoost was able to load it, as it returned a non-zero handle.
So i suspect something during compilation went wrong...
I also did
readelf -h libPharoBullet.so
and its ABI was "UNIX - GNU" while the ABI of pharo-vm is "UNIX - System V"
Could this be the problem here ?
How can i force the ABI to be System V when compiling ? I use gcc 4.8.2
Or what steps could i otherwise perform ?
I'm using an embedded PC which has a Vortex86-SG CPU, Ubuntu 10.04 w/ kernel 2.6.34.10-vortex86-sg. Unfortunately we can't compile a new kernel, cause we don't have any source code, not even drivers or patches.
I have to run a small project written in C++ with OpenFrameworks. The framework compiles right each script in of_v0071_linux_release/scripts/linux/ubuntu/install_*.sh.
I noticed that in order to compile against Vortex86/Ubuntu 10.04, the following options must be added in every config.make file:
USER_CFLAGS = -march=i486
USER_LDFLAGS = -lGLEW
In effects, it compiles without errors, but the generated binary doesn't start at all:
root#jb:~/openframeworks/of_v0071_linux_release/apps/myApps/emptyExample/bin# ./emptyExample
Illegal instruction
root#jb:~/openframeworks/of_v0071_linux_release/apps/myApps/emptyExample/bin# echo $?
132
Strace last lines:
munmap(0xb77c3000, 4096) = 0
rt_sigprocmask(SIG_BLOCK, [PIPE], NULL, 8) = 0
--- SIGILL (Illegal instruction) # 0 (0) ---
+++ killed by SIGILL +++
Illegal instruction
root#jb:~/openframeworks/of_v0071_linux_release/apps/myApps/emptyExample/bin#
Any idea to solve this problem?
I know I am a bit late on this but I recently had my own issues trying to compile the kernel for the vortex86dx. I finally was able to build the kernel as well. Use these steps at your own risk as I am not a Linux guru and some settings you may have to change to your own preference/hardware:
Download and use a Linux distribution that runs on a similar kernel version that you plan on compiling. Since I will be compiling Linux 2.6.34.14, I downloaded and installed Debian 6 on virtual box with adequate ram and processor allocations. You could potentially compile on the Vortex86DX itself, but that would likely take forever.
Made sure I hade decencies: #apt-get install ncurses-dev kernel-package
Download kernel from kernel.org (I grabbed Linux-2.6.34.14.tar.xz). Extract files from package.
Grab Config file from dmp ftp site: ftp://vxmx:gc301#ftp.dmp.com.tw/Linux/Source/config-2.6.34-vortex86-sg-r1.zip. Please note vxmx user name. Copy the config file to freshly extracted Linux source folder.
Grab Patch and at ftp://vxdx:gc301#ftp.dmp.com.tw/Driver/Linux/config%26patch/patch-2.6.34-hda.zip. Please note vxdx user name. Copy to kernel source folder.
Patch Kernel: #patch -p1 < patchfilename
configure kernel with #make menuconfig
Load Alternate Configuration File
Enable generic x86 support
Enable Math Emulation
I disabled generic IDE support because I will using legacy mode(selectable in bios)
Under Device Drivers -> Ethernet (10 or 100Mbit) -> Make sure RDC R6040 Fast Ethernet Adapter Support is selected
USB support -> Select Support for Host-side USB, EHCI HCD (USB 2.0) support, OHCI HCD support
safe config as .config
check serial ports: edit .config manually make sure CONFIG_SERIAL_8250_NR_UARTS = 4 (or more if you have additional), CONFIG_SERIAL_8250_RUNTIME_UARTS = 4(or more if you have additional). If you are to use more that 4 serial ports make use config_serail_8250_MANY_PORTs is set.
compile kernel headers and source: #make-kpkg --initrd kernel_image kernel_source kernel_headers modules_image