Repeated attempt to open non-existent libsunwjdga.so for Awt/Swing apps in IcedTea6 HEAD

[Dr Andrew John Hughes]

On 13:26 Tue 17 Aug     , Pavel Tisnovsky wrote:
> Hi,
> 
> I've found that IcedTea6 HEAD's JRE repeatedly tries to open
> non-existent library libsunwjdga.so when some Awt or Swing based
> application is started. Do anyone know if this is correct behaviour or
> do we have to add rules for this library to our build scripts?
> 
> Grepped messages from Strace are stored in attachment.
> 
> Pavel

> [pid 21427] open("/jck/j2sdk-image/jre/lib/amd64/xawt/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/jck/j2sdk-image/jre/lib/amd64/xawt/../libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/jck/j2sdk-image/bin/../jre/lib/amd64/jli/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/jck/j2sdk-image/jre/lib/amd64/server/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/jck/j2sdk-image/jre/lib/amd64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/lib64/tls/x86_64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/lib64/tls/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/lib64/x86_64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/lib64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/usr/lib64/tls/x86_64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/usr/lib64/tls/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/usr/lib64/x86_64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
> [pid 21427] open("/usr/lib64/libsunwjdga.so", O_RDONLY) = -1 ENOENT (No such file or directory)

It's a SPARC Solaris only library.

>From make/sun/Makefile:

ifneq ($(PLATFORM), windows)
  ifndef OPENJDK
    ifeq ($(PLATFORM), solaris)
      ifneq ($(ARCH), amd64)
        DGA_SUBDIR = jdga
      endif
    endif
  endif

See http://www.oracle.com/technetwork/java/javase/java2d-142140.html#gcgkf

'On SPARC hardware, if the framebuffer supports Sun's DGA (Direct
Graphics Access) X server extension, and Java 2D has a corresponding
module for accessing the framebuffer, DGA will be used for rendering
to the screen.'

The dlopen invocation in
src/solaris/native/sun/java2d/x11/X11SurfaceData.c is not conditional,
so it occurs on all POSIX platforms, despite the library only being
built on SPARC Solaris.
-- 
Andrew :)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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