static library linking failing : j9codert_vm

[Afzal-ibm]

Hello, I am trying to build Java 17 on AIX 7.3 system and I am facing this error when building.

/home/aa/build/7.5/jv1_java17_buildv7r5_08262343/openj9-openjdk-jdk17/build/aix-ppc64-server-release/vm/runtime/codert_vm/pnathelp.s: line 38610: Instruction stxvd2x is not implemented in the current assembly mode PPC64.
/home/aa/build/7.5/jv1_java17_buildv7r5_08262343/openj9-openjdk-jdk17/build/aix-ppc64-server-release/vm/runtime/codert_vm/pnathelp.s: line 38612: Instruction stxvd2x is not implemented in the current assembly mode PPC64.
/home/aa/build/7.5/jv1_java17_buildv7r5_08262343/openj9-openjdk-jdk17/build/aix-ppc64-server-rel[ 21%] Linking C
ERROR: Build faXX static librariled for target y ../lib/libj9co'all' in configudert_vm.a
ration 'aix-ppc6[ 21%] Built tar4-server-releaseget j9codert_vm
' (exit code 2)
ease/vm/runtime/codert_vm/pnathelp.s: line 38614: Instruction stxvd2x is not implemented in the current assembly mode PPC64.

I am looking for suggestions.

[Afzal-ibm]

machine details :

AIX ut202p33 3 7 0002CF8A7A00

[Afzal-ibm]

additional details if needed

System Model: IBM,8247-22L
Machine Serial Number: 212CF8A
Processor Type: PowerPC_POWER8
Processor Implementation Mode: POWER 8
Processor Version: PV_8_Compat
Number Of Processors: 2
Processor Clock Speed: 3026 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 33 ut202p33
Memory Size: 16384 MB
Good Memory Size: 16384 MB
Platform Firmware level: SV860_212
Firmware Version: IBM,FW860.80 (SV860_212)
Console Login: enable
Auto Restart: true
Full Core: true
NX Crypto Acceleration: Capable and Enabled
In-Core Crypto Acceleration: Capable, but not Enabled

[pshipton]

@zl-wang any ideas about this?

[zl-wang]

yeah, that means: pnathelp.s file contains instructions only available after/at a certain level of ISA (later than the default level assembler uses. neither the makefile nor the file itself provides option or pseudo op to indicate the necessary level of ISA needed) such that those instructions were complained as "not implemented". it can be fixed by either assembler option or set in with appropriate pseudo op, like below:

.machine "pwr7" (indicating ISA level of POWER7)

[zl-wang]

of course, once you put in the option or pseudo code, that build should be run on machines at least with that level of ISA (otherwise, it likely results in SIGILL).

[Afzal-ibm]

HI @zl-wang how do i set .machine "pwr7" ? in the build script or as a parameter to something ? Please answer.

[zl-wang]

the easiest way to move forward is to modify the AIX makefile: runtime/compiler/build/toolcfg/aix-xlc/common.mk replace -mppc64 with -mpwr7

@pshipton i haven't looked into overnight build how this is circumvented (maybe some macro is not defined in overnight build and vector reg save/restore is not included).

[Afzal-ibm]

Hi Julian, after adding the changes in common.mk file, I am facing this error

[ 21%] Building C object runtime/util/CMakeFiles/j9util.dir/aix/sethwprefetch.c.o
[ 21%] Linking CXX static library ../lib/libj9util.a
[ 21%] Built target j9util
make[4]: *** [all] Error 2
make[3]: *** [build-j9] Error 2
make[2]: *** [j9vm-build] Error 2

ERROR: Build failed for target 'all' in configuration 'aix-ppc64-server-release' (exit code 2)

No indication of failed target found.
Hint: Try searching the build log for '] Error'.
Hint: See doc/building.html#troubleshooting for assistance.

make[1]: *** [main] Error 2
make: *** [all] Error 2
make all failed.

[Afzal-ibm]

This is the change that I have added in common.mk

ifeq ($(HOST_BITS),32)
    S_FLAGS+=-mppc
endif

ifeq ($(HOST_BITS),64)
    S_FLAGS+=-mpwr7 -a64
endif

[zl-wang]

you have to scroll up to see what the real error was. the change for assembler option looked ok.