JVMInit function call - where is it located the source? (original) (raw)

David Holmes david.holmes at oracle.com
Wed Aug 22 01:38:06 UTC 2018

On 22/08/2018 11:02 AM, mr rupplin wrote:

Quickly, where do we look? I can't seem to find where the "javac" command is called in the C interface.

javac is just the name of a executable launcher that is built.

See make/launcher/Launcher-jdk.compiler.gmk

Where is the java code that runs the parser/compiler? Ok, thanks gotta run ably.

src/jdk.compiler/share/classes/com/sun/tools/javac

David

/mr

From: mr rupplin <mearvk at outlook.com> Sent: Tuesday, August 21, 2018 6:37:30 PM To: core-libs-dev at openjdk.java.net; Andrew Haley Subject: Re: JVMInit function call - where is it located the source? Thanks. Get Outlook for Android<https://aka.ms/ghei36>

From: Andrew Haley <aph at redhat.com> Sent: Tuesday, August 21, 2018 12:32:20 PM To: mr rupplin; core-libs-dev at openjdk.java.net Subject: Re: JVMInit function call - where is it located the source? On 08/21/2018 05:21 PM, mr rupplin wrote: Inside java.c there is a JLILaunch which purports to be the launching or entry point for the JVM. The last line shows:

return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); This is given apparently as a function call that will return an int. However the include file java.h shows no source for this function. Where is it located? Couldn't you just look? src/java.base/unix/native/libjli/javamdsolinux.c:79 And finally where is the javac.c source file? I'm sure it's been here and now its lost. - ok It's part of the Java launcher, jexec.c. The easiest way to discover this stuff is to run javac in a real C++ debugger. -- Andrew Haley Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

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