java/openjdk8: fix build on 32 bit arm

Fixes:
In file included from /wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/os/bsd/vm/os_perf_bsd.cpp:61:
In file included from /usr/include/sys/user.h:51:
In file included from /usr/include/vm/pmap.h:88:
In file included from /usr/include/machine/pmap.h:48:
In file included from /usr/include/sys/systm.h:46:
/usr/include/machine/cpufunc.h:184:1: error: static declaration of 'breakpoint' follows non-static declaration
  184 | breakpoint(void)
      | ^
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp:224:17: note: previous declaration is here
  224 | extern "C" void breakpoint();
      |                 ^

- bumped portrevision to easily spot if future bug reports are about this change.

PR:	281991
Approved by:	early maintainer timeout java@ (the build is broken and the patch does not affect other architectures)
Obtained from:	Mikael Urankar <mikael@> via Attachment 254105 in bug #255662

java/openjdk8/Makefile

 PORTNAME=	openjdk
 PORTVERSION=	${JDK_MAJOR_VERSION}.${JDK_UPDATE_VERSION}.${JDK_BUILD_NUMBER}.${BSD_JDK_VERSION}
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	java devel
 MASTER_SITES=	LOCAL/jkim:jtreg
 PKGNAMESUFFIX?=	${JDK_MAJOR_VERSION}

java/openjdk8/files/patch-hotspot_src_os_bsd_vm_os__perf__bsd.cpp

+--- hotspot/src/os/bsd/vm/os_perf_bsd.cpp.orig	2024-10-10 08:36:27 UTC
++++ hotspot/src/os/bsd/vm/os_perf_bsd.cpp
+@@ -57,6 +57,12 @@
+        * with the same name.
+        */
+       #define _MACHINE_PCB_H_
++      /*
++       * do not redefine breakpoint on armv7
++       */
++      #ifdef __arm__
++        #define _MACHINE_CPUFUNC_H_
++      #endif
+     #endif
+     #include <sys/user.h>
+   #endif