Gather the architecture of running processes on macOS 11+
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boB Rudis 659982d33a
single pid + leak checks
3 years ago
.gitignore .gitignore 3 years ago
LICENSE license 3 years ago
Makefile single pid + leak checks 3 years ago
NEWS.md single pid + leak checks 3 years ago
README.md simplified code 3 years ago
archinfo.c single pid + leak checks 3 years ago

README.md

archinfo

Returns a list of running processes and the architecture they are running under.

Apple M1/Apple Silicon/arm64 macOS can run x86_64 programs via Rosetta and most M1 systems currently (~March 2021) very likely run a mix of x86_64 and arm64 processes.

Activity Monitor can show the architecture, but command line tools such as ps and top do not due to Apple hiding the details of the proper sysctl() incantations necessary to get this info.

Patrick Wardle reverse engineered Activity Monitor— https://www.patreon.com/posts/45121749 — and I slapped that hack together with some code from Sydney San Martin — https://gist.github.com/s4y/1173880/9ea0ed9b8a55c23f10ecb67ce288e09f08d9d1e5 — into a nascent, bare-bones command line utility archinfo.

It returns columnar output or JSON (via --json) — that will work nicely with jq — of running processes and their respective architectures.

Build from source or grab from the releases.

$ archinfo
...
   5949  arm64 /System/Library/Frameworks/AudioToolbox.framework/AudioComponentRegistrar
   5923  arm64 /System/Library/CoreServices/LocationMenu.app/Contents/MacOS/LocationMenu
   5901 x86_64 /Library/Application Support/Adobe/Adobe Desktop Common/IPCBox/AdobeIPCBroker.app/Contents/MacOS/AdobeIPCBroker
   5873  arm64 /Applications/Utilities/Adobe Creative Cloud Experience/CCXProcess/CCXProcess.app/Contents/MacOS/../libs/Adobe_CCXProcess.node
   5863  arm64 /bin/sleep
   5861 x86_64 /Applications/Tailscale.app/Contents/PlugIns/IPNExtension.appex/Contents/MacOS/IPNExtension
   5855 x86_64 /Applications/Elgato Control Center.app/Contents/MacOS/Elgato Control Center
   5852 x86_64 /Applications/Tailscale.app/Contents/MacOS/Tailscale
   5849  arm64 /System/Library/CoreServices/TextInputSwitcher.app/Contents/MacOS/TextInputSwitcher
...
Rscript -e 'table(jsonlite::stream_in(textConnection(system("/usr/local/bin/archinfo --json", intern=TRUE)))$arch)'
##
## arm64 x86_64
##   419     29