RFR: JDK-8038340: Cleanup and fix sysroot and devkit handling on Linux and Solaris

[David Holmes]

sysroots and tool-chains and dev-kits! oh my!

Seriously, what does all this mean for someone who just wants to build 
the OpenJDK? I use dev-kit for cross-compilation builds but I have no 
idea what these different things are supposed to represent.

David

On 26/03/2014 8:32 PM, Erik Joelsson wrote:
> Hello,
>
> (including 2d-dev/awt-dev because I'm changing linker flags on desktop
> libs.)
>
> In preparation for upgrading compilers and build platforms, we would
> like to get better separation between the two. At least on Linux and
> Solaris this is certainly possible. Some work for this was already done
> in Jdk 8 but it was never taken all the way through into actual usage.
>
> In this bug, the configure parameters relating to this will be changed to:
>
> --with-sysroot: Sets a sysroot directory that will be propagated to the
> compiler (gcc --sysroot) if supported and which will be used by
> configure to look for all dependencies like headers and libraries. (old
> --with-sys-root will be kept for compatibility as an alias)
>
> --with-toolchain-path: Prepends to the path when looking for compilers
> and other target specific tools. Replaces --with-tools-dir, which will
> also be kept for compatibility as an alias.
>
> --with-extra-path: Prepends to the path when looking for everything.
>
> --with-devkit: Points to the root of a devkit. A devkit may have a
> "devkit.info" in its root detailing values for the above three
> parameters. If not, the fallback behavior is what it used to do. (set
> toolchain_path to devkit/bin and some options for subdirs for sysroot)
>
>
> Along with these changes some more was needed and done:
>
> * To get it to work properly on Solaris, the OPENWIN variables were
> removed and replaced with X_LIBS and X_CFLAGS. Several unnecessary
> runtime paths for awt* libs were removed and some were added where they
> were actually needed instead. All the libs have been verified to still
> find their dependencies with ldd.
>
> * The devkit generation makefiles for linux (in root/make/devkit) were
> updated to the proposed compiler versions and adding the devkit.info file.
>
> * A minor fix in compare.sh that was missed in an earlier patch.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8038340
> Webrevs:
> http://cr.openjdk.java.net/~erikj/8038340/webrev.root.01/
> http://cr.openjdk.java.net/~erikj/8038340/webrev.jdk.01/
>
> /Erik