Dalvik Executable - Revision history

Lucidiot: Add Kaitai Struct schema

2024-12-26T17:32:52Z

Add Kaitai Struct schema

Jsummers: Category:Android

2018-12-14T15:02:34Z

Category:Android

PaulWise: add a couple of links

2018-01-05T05:16:46Z

add a couple of links

Jsummers: PRONOM

2015-02-21T02:50:55Z

PRONOM

Dan Tobias at 19:09, 6 December 2014

2014-12-06T19:09:14Z

Dan Tobias: /* Links */

2014-12-06T19:06:50Z

‎Links

Dan Tobias: Created page with "{{FormatInfo |formattype=electronic |subcat=Executables |extensions={{ext|dex}}, {{ext|odex}} }} '''Dalvik Executable''' (DEX) is the form of executable code used in [[Android..."

2014-12-06T18:45:04Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Executables |extensions={{ext|dex}}, {{ext|odex}} }} '''Dalvik Executable''' (DEX) is the form of executable code used in [[Android..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Executables
|extensions={{ext|dex}}, {{ext|odex}}
}}
'''Dalvik Executable''' (DEX) is the form of executable code used in [[Android]] apps. It is code for a virtual machine architecture called the "Dalvik machine" (named after a fishing village in Iceland).

Android apps are typically written in [[Java]], which compiles to Java virtual machine [[bytecode]], which is then transformed into the Dalvik form; this creates several levels of indirection between the original program code and the actual native machine code of the hardware. A variant, "Optimized Dalvik Executable", transforms the code in ways that improve its efficiency. (The various layers of compiling and translating are done "Just In Time", making the system act as if it were using an interpreted language.)

The Dalvik software is open-source, but it has had legal issues of alleged infringement of patents and copyrights of Java; some litigation is still in progress.

Dalvik Executable is replaced with a newer format, [[ART (Android Runtime)]], in newer Android versions (from 5.0 "Lollipop").

== Format description ==
* [https://source.android.com/devices/tech/dalvik/dex-format.html Official format description]

== Links ==
* [[Wikipedia:Dalvik (software)|Wikipedia article]]
* [http://source.android.com/devices/tech/dalvik/ ART and Dalvik]
* [http://davidehringer.com/software/android/The_Dalvik_Virtual_Machine.pdf The Dalvik Virtual Machine Architecture]
* [https://twitter.com/angealbertini/status/538079375527116800/photo/1 DEX format chart]

← Older revision		Revision as of 15:02, 14 December 2018
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	* [https://www.fortiguard.com/uploads/general/Hidex_Paper.pdf Playing Hide and Seek with Dalvik Executables]		* [https://www.fortiguard.com/uploads/general/Hidex_Paper.pdf Playing Hide and Seek with Dalvik Executables]
	* [https://blog.bugsnag.com/dex-and-d8/ An exploration of the Dex File format]		* [https://blog.bugsnag.com/dex-and-d8/ An exploration of the Dex File format]
		+
		+	[[Category:Android]]

← Older revision		Revision as of 19:09, 6 December 2014
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	Dalvik Executable is replaced with a newer format, [[ART (Android Runtime)]], in newer Android versions (from 5.0 "Lollipop").		Dalvik Executable is replaced with a newer format, [[ART (Android Runtime)]], in newer Android versions (from 5.0 "Lollipop").
		+
		+	Both ART and DEX executables typically come to the end user embedded in an [[APK]] installation archive.

	== Format description ==		== Format description ==

← Older revision		Revision as of 19:06, 6 December 2014
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	* [http://davidehringer.com/software/android/The_Dalvik_Virtual_Machine.pdf The Dalvik Virtual Machine Architecture]		* [http://davidehringer.com/software/android/The_Dalvik_Virtual_Machine.pdf The Dalvik Virtual Machine Architecture]
	* [https://twitter.com/angealbertini/status/538079375527116800/photo/1 DEX format chart]		* [https://twitter.com/angealbertini/status/538079375527116800/photo/1 DEX format chart]
		+	* [https://www.fortiguard.com/uploads/general/Hidex_Paper.pdf Playing Hide and Seek with Dalvik Executables]

@@ Line 4: / Line 4: @@
 |extensions={{ext|dex}}, {{ext|odex}}
 |pronom={{PRONOM|fmt/694}}, {{PRONOM|fmt/695}}
 }}
 '''Dalvik Executable''' (DEX) is the form of executable code used in [[Android]] apps. It is code for a virtual machine architecture called the "Dalvik machine" (named after a fishing village in Iceland).

@@ Line 22: / Line 22: @@
 * [http://source.android.com/devices/tech/dalvik/ ART and Dalvik]
 * [http://davidehringer.com/software/android/The_Dalvik_Virtual_Machine.pdf The Dalvik Virtual Machine Architecture]
-* [https://twitter.com/angealbertini/status/538079375527116800/photo/1 DEX format chart]
+* [https://twitter.com/angealbertini/status/538079375527116800/photo/1 DEX format chart] ([https://github.com/corkami/pics/raw/master/binary/DalvikEXecutable.pdf PDF])
 * [https://www.fortiguard.com/uploads/general/Hidex_Paper.pdf Playing Hide and Seek with Dalvik Executables]