RFH: Debugging Zero crashing on Linux/SPARC

[John Paul Adrian Glaubitz]

Hi!

Since we are limited to Zero on Linux/SPARC in the foreseeable future, I would like to
make sure that Zero works properly again on Linux/SPARC.

Unfortunately, there is still an issue with Zero crashing on SPARC when built with
gcc-9. I have so far not figured out what the problem is, but the gdb backtrace looks
like below.

Can anyone give a pointer where to poke?

Thanks,
Adrian

glaubitz at gcc202:~/jdk$ gdb /home/glaubitz/jdk/build/linux-sparcv9-zero-release/jdk/bin/java
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Reading symbols from /home/glaubitz/jdk/build/linux-sparcv9-zero-release/jdk/bin/java...
(No debugging symbols found in /home/glaubitz/jdk/build/linux-sparcv9-zero-release/jdk/bin/java)
(gdb) r
Starting program: /home/glaubitz/jdk/build/linux-sparcv9-zero-release/jdk/bin/java 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/sparc64-linux-gnu/libthread_db.so.1".
[New Thread 0xfff80001012f9900 (LWP 212322)]

Thread 2 "java" received signal SIGBUS, Bus error.
[Switching to Thread 0xfff80001012f9900 (LWP 212322)]
0xfff8000100bf506c in SharedRuntime::generate_stubs () at /home/glaubitz/jdk/src/hotspot/share/runtime/sharedRuntime.cpp:106
106       _resolve_static_call_blob            = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::resolve_static_call_C),        "resolve_static_call");
(gdb) bt
#0  0xfff8000100bf506c in SharedRuntime::generate_stubs () at /home/glaubitz/jdk/src/hotspot/share/runtime/sharedRuntime.cpp:106
#1  0xfff80001009e4bfc in init_globals () at /home/glaubitz/jdk/src/hotspot/share/runtime/init.cpp:129
#2  0xfff8000100c431a4 in Threads::create_vm (args=<optimized out>, canTryAgain=0xfff80001012f8b7f)
    at /home/glaubitz/jdk/src/hotspot/share/runtime/thread.cpp:3887
#3  0xfff8000100a28198 in JNI_CreateJavaVM_inner (args=0xfff80001012f8ca8, penv=0xfff80001012f8ca0, vm=0xfff80001012f8c98)
    at /home/glaubitz/jdk/src/hotspot/share/prims/jni.cpp:3852
#4  JNI_CreateJavaVM (vm=0xfff80001012f8c98, penv=0xfff80001012f8ca0, args=0xfff80001012f8ca8)
    at /home/glaubitz/jdk/src/hotspot/share/prims/jni.cpp:3935
#5  0xfff800010024bb3c in InitializeJVM (ifn=<synthetic pointer>, penv=0xfff80001012f8ca0, pvm=0xfff80001012f8c98)
    at /home/glaubitz/jdk/src/java.base/share/native/libjli/java.c:1538
#6  JavaMain (_args=<optimized out>) at /home/glaubitz/jdk/src/java.base/share/native/libjli/java.c:417
#7  0xfff8000100250d64 in ThreadJavaMain (args=0x7feffffae60) at /home/glaubitz/jdk/src/java.base/unix/native/libjli/java_md_solinux.c:734
#8  0xfff8000100365010 in start_thread (arg=0xfff80001012f9900) at pthread_create.c:486
#9  0xfff8000100672154 in __thread_start () at ../sysdeps/unix/sysv/linux/sparc/sparc64/clone.S:78
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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