[patch] fix compiler flag for linux sparc targets

[David Holmes]

On 5/09/2016 9:33 PM, Erik Joelsson wrote:
> Patch looks ok.
>
> To my knowledge, nobody is actively keeping linux-sparc working in 9, so
> I would expect it to be broken.

It is not a listed platform for 9 or 8 (not even listed as known to be 
broken):

https://wiki.openjdk.java.net/display/Build/Supported+Build+Platforms

These patches likely fall out of scope now that we have hit RDP1.

David
-----

> /Erik
>
> On 2016-09-05 13:10, Matthias Klose wrote:
>> at least in 9b134 the build system currently picks up the wrong
>> compiler flag on
>> linux sparc targets. The patch below only applies it for solaris builds.
>>
>> --- a/common/autoconf/flags.m4
>> +++ b/common/autoconf/flags.m4
>> @@ -921,7 +921,7 @@
>>     # Set some additional per-CPU defines.
>>     if test "x$OPENJDK_$1_OS-$OPENJDK_$1_CPU" = xwindows-x86; then
>>       $2JVM_CFLAGS="[$]$2JVM_CFLAGS -arch:IA32"
>> -  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
>> +  elif test "xx$OPENJDK_$1_OS-$OPENJDK_$1_CPU" = xsolaris-sparcv9; then
>>       $2JVM_CFLAGS="[$]$2JVM_CFLAGS -xarch=sparc"
>>     elif test "x$OPENJDK_$1_CPU" = xppc64; then
>>       if test "x$OPENJDK_$1_OS" = xlinux; then
>>
>> Is the linux sparc port supposed to work in 9? It apparently does in
>> jdk8, but
>> the build later fails with
>>
>> /<<PKGBUILDDIR>>/src/hotspot/src/os_cpu/linux_sparc/vm/os_linux_sparc.cpp:
>> In
>> function 'bool checkByteBuffer(address, address, u_char**)':
>> /<<PKGBUILDDIR>>/src/hotspot/src/os_cpu/linux_sparc/vm/os_linux_sparc.cpp:442:49:
>>
>> error: 'thread' was not declared in this scope
>>       *stub = SharedRuntime::handle_unsafe_access(thread, npc);
>>                                                   ^~~~~~
>> lib/CompileJvm.gmk:201: recipe for target
>> '/<<PKGBUILDDIR>>/build/hotspot/variant-server/libjvm/objs/os_linux_sparc.o'
>> failed
>>
>>
>> Matthias
>