On Mon, 29 Apr 2024 12:15:55 GMT, Matthias Baesken <mbaes...@openjdk.org> wrote:
> Currently we run into some alignment related issues when building with > '--enable-ubsan' . Those errors already occur in the build. Fixing them might > take some time and maybe also some discussion if it is worth the effort , > So for now the alignment related checks should be disabled to get the UBSAN > build working. > Example : > > /jdk/src/hotspot/cpu/x86/macroAssembler_x86.hpp:128:13: runtime error: store > to misaligned address 0x15099c3cf4ce for type 'int', which requires 4 byte > alignment > 0x15099c3cf4ce: note: pointer points here > 00 80 0f 86 00 00 00 00 3d 06 00 00 80 76 60 3d 07 00 00 80 76 40 3d 08 00 > 00 80 76 20 3d 1e 00 > ^ > #0 0x1509b3b04f10 in MacroAssembler::pd_patch_instruction(unsigned char*, > unsigned char*, char const*, int) > /jdk/src/hotspot/cpu/x86/macroAssembler_x86.hpp:128 > #1 0x1509b3b04f10 in Label::patch_instructions(MacroAssembler*) > /jdk/src/hotspot/share/asm/assembler.cpp:201 > #2 0x1509b940b6d8 in VM_Version_StubGenerator::generate_get_cpu_info() > /jdk/src/hotspot/cpu/x86/vm_version_x86.cpp:381 > #3 0x1509b94059bd in VM_Version::initialize() > /jdk/src/hotspot/cpu/x86/vm_version_x86.cpp:2138 > #4 0x1509b93fb56e in VM_Version_init() > /jdk/src/hotspot/share/runtime/vm_version.cpp:32 > #5 0x1509b61ef947 in init_globals() > /jdk/src/hotspot/share/runtime/init.cpp:126 > #6 0x1509b8fb0e29 in Threads::create_vm(JavaVMInitArgs*, bool*) > /jdk/src/hotspot/share/runtime/threads.cpp:553 > #7 0x1509b67da3d7 in JNI_CreateJavaVM_inner > /jdk/src/hotspot/share/prims/jni.cpp:3581 > #8 0x1509b67da3d7 in JNI_CreateJavaVM > /jdk/src/hotspot/share/prims/jni.cpp:3672 > #9 0x1509c0eed957 in InitializeJVM > /jdk/src/java.base/share/native/libjli/java.c:1550 > #10 0x1509c0eed957 in JavaMain > /jdk/src/java.base/share/native/libjli/java.c:491 > ... (rest of output omitted) Thanks for the reviews ! ------------- PR Comment: https://git.openjdk.org/jdk/pull/18998#issuecomment-2084588114
