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fixsegfaultvcs's Introduction

Hey, my name is Maks !

I'm software engineer, Linux system administrator and DevOps engineer. My main line of work is improving of simulators of computer architectures. QEMU is my favorite project. I added some special computer architectures in it. These works were completed in several commercial projects and startup GONT. All of them are used in companies like internal tools. Also, there is technology QEMU-TLM which allows to make emulators of heterogeneous multiple cores and, of course, to introduce any emulated peripherals into QEMU. So, I used it for creating some emulators.

Beside, I participate in the development of other system softwares which are usually written on C, C++, Python and Bash. E.g., I customized several times gcc-toolchain for some architectures based on RISC-V, MIPS and I ported gcc-newlib library for processor which is made on RISC-V. There are other systems tools which are developed by me, e.g. Linux kernel modules, Embedded software for Xilinx Zynq, GUI tools are based on PyQt, generators of code, embedded programs of various hardware modules which are modeled on RTL simulators VCS and XCELIUM and other. Also, I have skills to make installers for various Linux distributions, e.g. deb-package and universal sh-installer.

My admin skills are based on Linux, nfs, iptables, docker, RAID, GitLab, Jira, munin, Zabbix, openVPN, VNC, ThinLinc, Ansible, Environment Modules, tools and libraries for development of SoC - TSMC, Synopsys, Cadence, Ansys, Xilinx, Arteris, Mentor Graphics, Siemens. And my favorite distributions of operating systems are Ubuntu, CentOS and Debian.
Also, I have experience in building of computer clusters which is based on slurm and Grid Engine (AGE, SGE, UGE). These computer clusters are used for EDA, electronic design automation.

In addition, I'm interested in DevOps-area. I have expertise in GitLab CI/CD, Ansible, Docker, Singularity, CWL.

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Find me elsewhere 🌎

💼: LinkedIn
💼: Developer CV
💼: DevOps CV
📱: Telegram
🐳: Docker Hub
📸: Instagram #makshunting 🐾

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fixsegfaultvcs's Issues

Segmentation fault in verdi

I fixed verdi segfault how described in README. I patched library - verdi/S-2021.09-SP1-1/platform/linux64/bin/libucapi.so! It works!

Segmentation fault in icc2

Hello, I followed your instructions in the readme, but gdb did not tell me *.so that I need to patch it. This is my log:

`(base) mrpp@mrpp:/software/synopsys2022/icc2/T-2022.03/bin$ gdb /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec
GNU gdb (Ubuntu 9.2-0ubuntu120.04.1) 9.2
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/.
Find the GDB manual and other documentation resources online at:
http://www.gnu.org/software/gdb/documentation/.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec...
(No debugging symbols found in /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec)
(gdb) set args -shell=icc2
(gdb) run
Starting program: /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec -shell=icc2
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fff8d3ff700 (LWP 26153)]
Error: Unknown shell. Use -shell to select one of dcrt dft fc icc2 3dic
[Thread 0x7fff8ddbe280 (LWP 26127) exited]
[Inferior 1 (process 26127) exited with code 01]
(gdb) run -h
Starting program: /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec -h
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fff8d3ff700 (LWP 26185)]
Error: Unknown shell. Use -shell to select one of dcrt dft fc icc2 3dic
[Thread 0x7fff8ddbe280 (LWP 26169) exited]
[Inferior 1 (process 26169) exited with code 01]
(gdb) run -shell icc2
Starting program: /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec -shell icc2
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fff8d3ff700 (LWP 26239)]
[Thread 0x7fff8d3ff700 (LWP 26239) exited]
process 26220 is executing new program: /home/mrpp/software/synopsys2022/icc2/T-2022.03/linux64/nwtn/bin/dgcom_exec
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x1554ea9ff700 (LWP 26264)]
[New Thread 0x1554e9989700 (LWP 26279)]
[Thread 0x1554e9989700 (LWP 26279) exited]
[New Thread 0x1554e9989700 (LWP 26287)]
[New Thread 0x1554e9550700 (LWP 26316)]
[Thread 0x1554e9989700 (LWP 26287) exited]
ERROR: The application is terminated (Error Code: 501).
Please contact support center at [email protected].

Thread 1 "dgcom_exec" received signal SIGSEGV, Segmentation fault.
0x00000000273ea510 in SNPSee_91ecbd23c4a0f37d9b74954c2e83d4ea28e660b192171022f662109085ab9255 ()
(gdb) backtrace
#0 0x00000000273ea510 in SNPSee_91ecbd23c4a0f37d9b74954c2e83d4ea28e660b192171022f662109085ab9255 ()
#1 0x00000000273ea685 in SNPSee_794e4fbf9dbc95eea4e7c00076e76618 ()
#2 0x00000000273eb145 in SNPSee_ba11b1edbd04051f4cfa1e58091b7b6c ()
#3 0x0000000028c4fce9 in SNPSee_aac57d44e163568190759c9cfe8563709bace0af59e1ec70ddb230f1c8aad2df ()
#4 0x00001554f1f4c8a7 in __run_exit_handlers (status=-1, listp=0x1554f20f2718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
#5 0x00001554f1f4ca60 in __GI_exit (status=) at exit.c:139
#6 0x000000002740272e in ()
#7 0x0000000027407aa8 in SNPSee_02c2e000e122135fdcc20a77ef3b8d15 ()
#8 0x00000000273ef0b5 in SNPSee_b02289328df49303de0a4a986839ba7137fc9785576e580e ()
#9 0x00000000273f13ad in SNPSee_1bc1de7a7892c3dc9ed9fc9f718684af ()
#10 0x00000000273f25ea in SNPSee_4339c3fcb642499431e6499fc1f819f1 ()
#11 0x00000000273ec5a9 in SNPSee_a10369bdf7c5916ddd6866ce7e2e861c ()
#12 0x00000000273ecdc5 in SNPSee_00b1acee80c770570cd75f9efbe24cca ()
#13 0x00000000273ed945 in SNPSee_ba11b1edbd04051f5bb81b1861cdf84a ()
#14 0x0000000028c4c15b in SNPSee_c5dd1896fcdf1fe9c105c3c8e063e45a056f79daeb85cf55380d198817a45afc994f640f09d5e4b45aa7ad8026238725c99349dfd63bfc3f ()
#15 0x0000000028c4e66f in SNPSee_aac57d44e163568190759c9cfe856370ae4235c295d94f6df6c1024e1eceb5d2218b8aef9faa42bfb2d446ff1b00d0810193cc1c5a4a23aaf93239c0660ab7fa472a1c7004d64121e3b3da7ed4e790992df34f2ed621d7fd39d4ab35ca711c51 ()
#16 0x0000000028d31131 in SNPSee_b3a63ca9beb66366a2beecdfa325f5f830d5bf4b8974e747b53590f44785f4a89f60cece70e10e1f40e2a34e0182f044 ()
#17 0x0000000028d35227 in SNPSee_b3a63ca9beb66366a2beecdfa325f5f850e37c16b964335ba934f8a7afefeaf1 ()
#18 0x0000000003e84e82 in SNPSee_6188b3f9a7e769c7eb2dc22ab181ff5c0260e7bf3c6e6c5b6dd310362dd3e58b19a33122e2a80c1014bca5a076370ba0686492d474ef148ca36ababef5945158a888f7e536545dec88d039942c447aad829ec3c9a13ccf1352c7f068f1dc0d713b949058f841385ce96831542394be36f2ec7e463409336ff9646fa385cc5a553df93f9156ead7f8 ()
#19 0x0000000003e8721d in SNPSee_5a24f30b88271223 ()
#20 0x00001554f1f2a083 in __libc_start_main (main=
--Type for more, q to quit, c to continue without paging--c
0x3e86800 <SNPSee_5a24f30b88271223>, argc=3, argv=0x7fffffffc858, init=, fini=, rtld_fini=, stack_end=0x7fffffffc848) at ../csu/libc-start.c:308
#21 0x000000000487b4cc in SNPSee_d06eed713327be76 ()
`

What do I need to do to know which so file needs to be patched?

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