GiwsException::JniCallMethodException on FreeBSD

Development
1

Hello,
I managed to compile Scilab on FreeBSD, and scilab-cli works OK, but scilab-adv-cli aborts with the following error:

Terminating due to uncaught exception 0x3e8ea72db700 of type GiwsException::JniCallMethodException
A fatal error has been detected by Scilab.
Please check your user-defined functions (or external module ones) should they appear in the stack trace.

The output of getdebuginfo is:

Scilab branch-2025.1 (Jul  3 2025, 22:32:47)

--> [a, b] = getdebuginfo() 
 
 a = [5x1 string]

  "Total free memory: 21528576"                        
  "Total memory: 33374208"                             
  "SCI: /usr/local/share/scilab/"                      
  "SCIHOME: /home/thierry/.Scilab/scilab-branch-2025.1"
  "TMPDIR: /tmp/SCI_TMP_75663_USFRHR"                  

 b = [6x1 string]

  "Scilab Version: scilab-branch-2025.1"                                                                             
  "Compilation date: Jul  3 2025"                                                                                    
  "Compilation time: 22:32:47"                                                                                       
  "Compileur version: FreeBSD Clang 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)"
  "XML version: 2.11.9"                                                                                              
  "Compiler Architecture: X64"

But there is no StackTrace: how could I enable it?

2

Hello,

Can you give the output you get when you run the configure script ?

S.

3

“Sorry, new users can not upload attachments.”
I uploaded it to https://people.freebsd.org/~thierry/config.log .
Thanks for taking care.

4

OK thanks, I just wanted to check that you were using Java17.
Another point: we stick to clang-16 for the macOS build (I saw that you are using clang-19). Anyway can you launch scilab-adv-cli in lldb, in order to see where the exception occurs ?

S.

5

It runs until ./modules/jvm/src/c/JVM_commons.c:52, at the line
return (ptr_JNI_CreateJavaVM)(jvm, penv, args);
and then it enters into libjvm.so, for which I have no debug code!

The error occurs just after a return code:

    frame #0: 0x00000ae49a5a7e75 ld-elf.so.1`_rtld_bind_start at rtld_start.S:158
   155          popfq                           # Restore rflags
   156          .cfi_adjust_cfa_offset -8
   157          leaq    16(%rsp),%rsp           # Discard spare, obj, do not change rflags
-> 158          ret                             # "Return" to target address
   159          .cfi_endproc
   160          .size   _rtld_bind_start, . - _rtld_bind_start
   161

Process 4996 stopped
* thread #1, name = 'scilab-bin', stop reason = signal SIGSEGV: address not mapped to object (fault address: 0x0)
    frame #0: 0x000000088bd4762d
->  0x88bd4762d: movl   (%rsi), %eax
    0x88bd4762f: leaq   0x30(%rbp), %rsi
    0x88bd47633: movl   $0x10000, %eax ; imm = 0x10000 
    0x88bd47638: andl   0x4(%rsi), %eax

I have no experience with JNI, and no clue about these messages!
I could rebuild OpenJDK with debug symbols, but I prefer to avoid it…
Have you already encountered such an error on other platforms?

6

Ad read in Scilab works on my system - linux mint 21.2, but it gives a GLException, can I fix this? - #2 by mottelet I tried

export _JAVA_OPTIONS='-Djogl.disable.opengles'

and then

export LIBGL_ALWAYS_SOFTWARE=true scilab

Without success: same error Terminating due to uncaught exception 0x362a1cac0700 of type GiwsException::JniCallMethodException

7

Out of curiosity, I imported giws and tested the option --enable-build-giws: same error.

Remark: giws taken from GitHub - opencollab/giws: A wrapper generator to generate C++ mapping Java classes at version 3.0.0, which identifies itself as 2.0.2, but Scilab’s configure wants 1.3.0.