Felix Palmen 📯 · @zirias
66 followers · 263 posts · Server techhub.social@thindil @emaste Please understand that a #syscall is something completely different than some other, in-kernel, call. A syscall is the special way userspace can call something in the kernel, which needs a context switch. Some architectures have special CPU instructions for syscalls available, on other architectures, software-interrupts (that the kernel can handle) are used, etc.
Nothing of that is done for in-kernel calls, they're "just" function calls.
#FreeBSD #Linuxulator provides a set of #Linux-compatible syscalls. The #LinuxKPI project on the other hand aims to provide in-kernel Linux compatibility for use by certain drivers. They're completely unrelated.
BTW, you're missing a syllable, it's spelled LinuxULator 😉
#syscall #freebsd #linuxulator #linux #linuxkpi
John-Mark Gurney · @encthenet
589 followers · 8685 posts · Server flyovercountry.socialIs there a reason you didn't use syscall.master to parse instead? (Or maybe you did and the blog is slightly wrong?)
https://cgit.freebsd.org/src/tree/sys/kern/syscalls.master
#UNIX #POSIX #BSD #FreeBSD #coding #C #Opensource #OS #kernel #syscall
#unix #posix #bsd #freebsd #coding #c #opensource #os #kernel #syscall
Alfonso Siciliano · @alfonsosiciliano
5 followers · 5 posts · Server mastodon.bsd.cafe
· @linkdrop
53 followers · 1909 posts · Server botsin.spaceLinux syscall tables https://syscalls.mebeim.net/ #reference #arguments #overview #location #syscall #symbols #kconfig #number #config #linux #table
#reference #arguments #overview #location #syscall #symbols #kconfig #number #config #linux #table
Marcus Botacin · @MarcusBotacin
37 followers · 33 posts · Server infosec.exchange
[Paper of the day][#19] Do you struggle with #CPU #performance degradation caused by #antivirus monitoring? Have you ever imagined the possibility of having a dedicated CPU only for security purposes? In this paper, we explore the design of a security coprocessor to fully mitigate the overhead of AV monitoring. We show how custom #YARA rules can be matched against system and library call arguments in parallel with the #syscall execution. Lots of interesting architecture stuff in this paper. Take a look.
Academic paper: https://dl.acm.org/doi/10.1145/3494535
Archived version: https://secret.inf.ufpr.br/papers/marcus_coproc.pdf
#cpu #performance #antivirus #yara #syscall
Alex · @alexbell
0 followers · 4 posts · Server infosec.exchangePro tip: if you're baffled how a piece of #shellcode is able to bind/listen/accept while appearing to call getuid over and over it's because you're looking at the wrong #syscall table
unixbhaskar · @unixbhaskar
25 followers · 96 posts · Server mastodon.socialWell, those of you inclined to read ..take a peek :
https://lwn.net/SubscriberLink/915640/53bc300d11179c62/
#linux #research #openbsd #syscall #kernel #linuxkernel #sysadmin #linuxadmin #opensource
#linux #research #openbsd #syscall #kernel #linuxkernel #sysadmin #linuxadmin #opensource
unixbhaskar · @unixbhaskar
27 followers · 198 posts · Server mastodon.socialWell, those of you inclined to read ..take a peek :
https://lwn.net/SubscriberLink/915640/53bc300d11179c62/
#linux #research #openbsd #syscall #kernel #linuxkernel #sysadmin #linuxadmin #opensource
#linux #research #openbsd #syscall #kernel #linuxkernel #sysadmin #linuxadmin #opensource
unixbhaskar · @unixbhaskar
3 followers · 13 posts · Server fosstodon.orgWell, those of you inclined to read .take a peek :
https://lwn.net/SubscriberLink/915640/53bc300d11179c62/
#linux #research #openbsd #syscall #linuxadmin #sysadmin #opensource #linuxkernel #kernel
#linux #research #openbsd #syscall #linuxadmin #sysadmin #opensource #linuxkernel #kernel
Anonymous :verified_neko:🏴 · @YourAnonRiots
4119 followers · 26261 posts · Server mstdn.socialAvoiding direct syscall instructions by using trampolines https://eversinc33.github.io/posts/avoiding-direct-syscall-instructions/ #Pentesting #syscall #CyberSecurity #Infosec
#InfoSec #CyberSecurity #syscall #pentesting
0xor0ne · @0xor0ne
15 followers · 3 posts · Server infosec.exchange
linux-syscall-support: header file that can be included into your application whenever you need to make direct system calls
#syscall #linux #infosec #cybersecurity #infotech
Olivier Duquesne aka DaffyDuke · @daffyduke
485 followers · 37712 posts · Server mamot.fr
RT @linuxaudit
Monitor file access by Linux processes https://linux-audit.com/monitor-file-access-by-linux-processes/ #lsof #strace #syscall
· @linkdrop
45 followers · 1816 posts · Server botsin.spaceLinux System Call Table http://thevivekpandey.github.io/posts/2017-09-25-linux-system-calls.html #programming #overview #syscall #system #kernel #linux #calls #table #write #close #read #open #c
#programming #overview #syscall #system #kernel #linux #calls #table #write #close #read #open #c
OSTechNix · @ostechnix
520 followers · 1486 posts · Server floss.socialTrace Syscall Activity In Linux With Process Monitor (Procmon) #SystemCalls #Syscall #ProcessMonitor #Promon #SysinternalsSuite #Microsoft #Linux
https://ostechnix.com/trace-syscall-activity-in-linux-with-process-monitor-procmon/
#Linux #Microsoft #SysinternalsSuite #Promon #processmonitor #syscall #systemcalls
Collabora · @collabora
804 followers · 471 posts · Server floss.social
New year, new kernel: A look at Collabora's contributions to #Linux 5.11, including the new #Syscall User Dispatch mechanism, the destaging of both the #H264 stateless decoding interface & the #Rockchip ISP driver. https://col.la/lk511 #OpenSource #RK3399
#rk3399 #OpenSource #rockchip #h264 #syscall #Linux
Collabora · @collabora
804 followers · 471 posts · Server floss.social
Collabora · @collabora
804 followers · 471 posts · Server floss.social
Next up at 17:15 GMT at #OSSummit, Gabriel Krisman Bertazi presents "Efficient Syscall Emulation on Linux", where he'll look at the new #Syscall User Dispatch mechanism which arrived in #Linux 5.9. See you there! https://sched.co/eCDx #Wine #Windows #Gaming #OpenSource
#OpenSource #gaming #Windows #wine #Linux #syscall #OSSummit