Re: System Reaction - Stunned

2018-08-05 Thread David Holmes

On 6/08/2018 5:57 AM, mr rupplin wrote:

Hello.

Trying to understand the "make process" as it relates to a fundamental build 
and where the files end up going.  Not being pushy at all.


Your subject line conveys a different sentiment.


I'm having trouble locating the files after the "make" command executes.  So 
quickly a few questions:


   1.   Where do the Standard Java (System.java, etc.) go when they are 
compiled (System.class)?


You already found them - no magic or mystery here. The class file gets 
compiled into the appropriate directory. For JDK 9 and above, where we 
use the module system this is:


/jdk/modules/java.base/java/lang/

When you create an actual JDK image these class files will then get 
incorporated into the module file e.g.


/images/jdk/jmods/java.base.jmod


   2.  Where are the native mappings?  How does this work? For instance 
System.c gets mapped to a .o but then what? kthx.


Each native library has a set of source directories which are then 
compiled and linked together to form that library. The native sources 
for the core library classes, like System.c, are all part of libjava.so.


David
-


I show some .class files under 
/jdk9/build/linux-x86_64-normal-server-release/jdk/modules/java.base however 
these are not apparently the direct process descendants of source files at 
jdk9/jdk/src/java.base/share/classes .

I will be called on to answer these.  Please consider looking and making the 
connections evident in the build process.  The output println statements are 
not correct enough for even me to see, understand for that.  ok.

Thanks,

Mr. Max

Friend to Mankind



System Reaction - Stunned

2018-08-05 Thread mr rupplin
Hello.

Trying to understand the "make process" as it relates to a fundamental build 
and where the files end up going.  Not being pushy at all.

I'm having trouble locating the files after the "make" command executes.  So 
quickly a few questions:


  1.   Where do the Standard Java (System.java, etc.) go when they are compiled 
(System.class)?
  2.  Where are the native mappings?  How does this work? For instance System.c 
gets mapped to a .o but then what? kthx.

I show some .class files under 
/jdk9/build/linux-x86_64-normal-server-release/jdk/modules/java.base however 
these are not apparently the direct process descendants of source files at 
jdk9/jdk/src/java.base/share/classes .

I will be called on to answer these.  Please consider looking and making the 
connections evident in the build process.  The output println statements are 
not correct enough for even me to see, understand for that.  ok.

Thanks,

Mr. Max

Friend to Mankind