README

README.md

@@ -0,0 +1,20 @@
+#  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 will do more, soon, but for now it just returns a big JSON blog (that will work fine with `jq`) of running processes and their respective architectures.
+
+Build from source or grab from the releases.
+
+```
+Rscript -e 'table(jsonlite::fromJSON(system("/usr/local/bin/archinfo", intern=TRUE))$arch)'
+##
+## arm64 x86_64
+##   419     29
+```

archinfo.xcodeproj/project.pbxproj

@@ -26,6 +26,7 @@
 
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+		01B369A525FD391D0064ACA1 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		01C9200725FD06D20097CD09 /* archinfo */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = archinfo; sourceTree = BUILT_PRODUCTS_DIR; };
 		01C9200A25FD06D20097CD09 /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
 		01C9201125FD07000097CD09 /* archinfo-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "archinfo-Bridging-Header.h"; sourceTree = "<group>"; };
@@ -49,6 +50,7 @@
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+				01B369A525FD391D0064ACA1 /* README.md */,
 				01C9200925FD06D20097CD09 /* archinfo */,
 				01C9200825FD06D20097CD09 /* Products */,
 				01C9201825FD0A3B0097CD09 /* Frameworks */,