View source for System call (syscall)

[[wikipedia:syscall]]
* <code>[[ptrace]]</code>
* <code>[[unlink]]</code>: <code>[[rm]]</code>
* <code>[[chroot]]</code>
* <code>[[fork]]</code>
* <code>[[futex]]</code>

* <code>[[strace]] -c -f -p $PID</code>

==Categories of system calls==
System calls can be grouped roughly into six major categories:<ref>{{Cite book|title=Operating System Concepts|last=Silberschatz|first=Abraham|publisher=Wiley|others=Peter B Galvin; Greg Gagne|year=2018|isbn=9781119320913|edition=10th|location=Hoboken, NJ|pages=67|oclc=1004849022}}</ref>

:

# Process control
#* create process (for example, <code>[[fork (operating system)|fork]]</code> on Unix-like systems, or <code>NtCreateProcess</code> in the [[Windows NT]] [[Native API]])
#*Terminate [[process]]: [[process_mrelease]](2), [[kill]]
#*[[Loader (computing)|load]], [[Exec (operating system)|execute]]
#* get/set process attributes
#*[[Wait (operating system)|wait]] for time, wait event, [[Signal (computing)|signal]] event
#*[[Dynamic memory allocation|allocate]] and [[Garbage collection (computer science)|free]] memory

# File management
#* create file, delete file
#* open, close
#* read, write, reposition
#* get/set file attributes
# Device management
#* request device, release device
#* read, write, reposition
#* get/set device attributes
#* logically attach or detach devices
# Information maintenance
#* get/set total system information (including time, date, computer name, enterprise etc.)
#* get/set process, file, or device metadata (including author, opener, creation time and date, etc.)
# Communication
#* create, delete communication connection
#* send, receive messages
#* transfer status information
#* attach or detach remote devices
#Protection
#*get/set file permissions

== Related terms ==
* [[Linux commands]]
* [[man]]
* [[/var/log/audit/audit.log]]
* [[userfaultfd]]

== See also ==
* {{syscall}}
* {{perf}}
* {{Linux Kernel}}


[[Category:Computing]]