Fix JIT code breakpoints on x86

[0xdaryl]

Code breakpoints inserted by the JIT should use an int3 instruction rather
than the bad pseudo instruction.

Signed-off-by: Daryl Maier maier@ca.ibm.com

[0xdaryl]

Jenkins test sanity xlinux,win,win32 jdk8

[0xdaryl]

@dsouzai @ymanton : would one of you mind reviewing and merging this please?

[dsouzai]

Linux build is failing because of cmdLineTester_GCRotatingVerboseLogTests_2 which has been seen elsewhere. The win32 build though is crashing in the JIT while building some test:

23:42:49  Unhandled exception
23:42:49  Type=Segmentation error vmState=0x00000000
23:42:49  J9Generic_Signal_Number=00000004 ExceptionCode=c0000005 ExceptionAddress=71131C6C ContextFlags=0001007f
23:42:49  Handler1=71A01C60 Handler2=71924270 InaccessibleReadAddress=0B4868B6
23:42:49  EDI=2340F29A ESI=0140A750 EAX=212E1798 EBX=212E17F0
23:42:49  ECX=013F4320 EDX=0B4868AA
23:42:49  EIP=71131C6C ESP=2648412C EBP=22129800 EFLAGS=00210282
23:42:49  GS=002B FS=0053 ES=002B DS=002B
23:42:49  Module=F:\Users\jenkins\workspace\Test_openjdk8_j9_sanity.functional_x86-32_windows_Personal\openjdkbinary\j2sdk-image\jre\bin\default\j9jit29.dll
23:42:49  Module_base_address=71130000 Offset_in_DLL=00001c6c
23:42:49  Target=2_90_20220203_158 (Windows Server 2012 R2 6.3 build 9600)
23:42:49  CPU=x86 (8 logical CPUs) (0x1ffb9c000 RAM)
23:42:49  ----------- Stack Backtrace -----------
23:42:49  (0x71131C6C [j9jit29+0x1c6c])
23:42:49  (0x212E1798)
23:42:49  ---------------------------------------

though I don't see how it could be related to this change.

[dsouzai]

Jenkins test sanity win32 jdk8

[dsouzai]

@0xdaryl win32 looks like it's consistently failing, now failing with

11:12:22  Buildfile: F:\Users\jenkins\workspace\Test_openjdk8_j9_sanity.functional_x86-32_windows_Personal\aqa-tests\TKG\scripts\build_tools.xml
11:12:23  Unhandled exception
11:12:23  Type=Segmentation error vmState=0x00070000
11:12:23  J9Generic_Signal_Number=00000004 ExceptionCode=c0000005 ExceptionAddress=71E26E59 ContextFlags=0001007f
11:12:23  Handler1=72231C60 Handler2=72154270 InaccessibleReadAddress=7FFA818C
11:12:23  EDI=00000000 ESI=22129800 EAX=0FFFFFFF EBX=00000009
11:12:23  ECX=22129800 EDX=2D8E400F
11:12:23  EIP=71E26E59 ESP=00CAF54C EBP=FFFA8190 EFLAGS=00210246
11:12:23  GS=002B FS=0053 ES=002B DS=002B
11:12:23  Module=F:\Users\jenkins\workspace\Test_openjdk8_j9_sanity.functional_x86-32_windows_Personal\openjdkbinary\j2sdk-image\jre\bin\default\j9jit29.dll
11:12:23  Module_base_address=71960000 Offset_in_DLL=004c6e59
11:12:23  Target=2_90_20220204_159 (Windows Server 2012 R2 6.3 build 9600)
11:12:23  CPU=x86 (8 logical CPUs) (0x1ffb9c000 RAM)
11:12:23  ----------- Stack Backtrace -----------
11:12:23  Java_java_lang_invoke_ThunkTuple_initialInvokeExactThunk+0x4212e9 (0x71E26E59 [j9jit29+0x4c6e59])
11:12:23  (0x71961C82 [j9jit29+0x1c82])
11:12:23  Java_java_lang_invoke_ThunkTuple_initialInvokeExactThunk+0x40d8b2 (0x71E13422 [j9jit29+0x4b3422])
11:12:23  J9VMDllMain+0x8956 (0x71659966 [j9gc29+0x9966])
11:12:23  (0x72217987 [j9vm29+0x57987])
11:12:23  (0x7221E95F [j9vm29+0x5e95f])
11:12:23  (0x7222049B [j9vm29+0x6049b])
11:12:23  J9_GetInterface+0x4eda3 (0x7228A6E3 [j9vm29+0xca6e3])
11:12:23  J9_GetInterface+0x4e118 (0x72289A58 [j9vm29+0xc9a58])

[0xdaryl]

Thanks. That's weird. I'll have a look.

[0xdaryl]

Jenkins test sanity xlinux,win,win32 jdk8

[0xdaryl]

Win32 issue is fixed in most recent forced push. @dsouzai, please review again. Thank you.