fastdebug builds broken for jdk9/hs tree?

[Severin Gehwolf]

On Fri, 2016-04-29 at 09:21 +0100, Andrew Haley wrote:
> On 29/04/16 08:56, Severin Gehwolf wrote:
> > 
> > Here you go (DTRACE_CLASSLOAD_PROBE(loaded, k, shared_class);
> OK.  Now take that expansion, run indent on it, and paste it in
> to the program where the macro was.  Then we'll be able to get
> much better info about the reload failure.

For the curious, this is the bit that trips up GCC 4.4.7 and GCC 4.7.2
and seems to work fine on GCC 5.3.1:

--- /home/sgehwolf/openjdk9-hs-pristine/hotspot/src/share/vm/services/classLoadingService.cpp.fail_mini	2016-04-29 14:56:30.711924152 +0200
+++ /home/sgehwolf/openjdk9-hs-pristine/hotspot/src/share/vm/services/classLoadingService.cpp	2016-04-29 14:57:00.102527106 +0200
@@ -170,7 +170,7 @@
                             "\n"::
                             [_SDT_S3]
                             "n" ( 1 ),
-                            [_SDT_A3] "nor" ( ((k)->class_loader ())));
+                            [_SDT_A3] "nor" ( 1 ));
       __asm__ __volatile__ (".ifndef _.stapsdt.base" "\n"
                             ".pushsection .stapsdt.base" "," "\"aG\"" ","
                             "\"progbits\"" "," ".stapsdt.base" "," "comdat"

Affected GCC versions choke on the "(k)->class_loader ()" bit with -O3
:-(

Cheers,
Severin