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8318694: [JVMCI] disable can_call_java in most contexts for libjvmci compiler threads #16383

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8318694: [JVMCI] disable can_call_java in most contexts for libjvmci compiler threads #16383

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9fc5ad9
[skip ci] update CompilerThread::can_call_java to be false more often…
dougxc Oct 24, 2023
7f2285e
CompilerThreadCanCallJava scope must enclose the JVMCIEnv scope
dougxc Oct 27, 2023
af42062
improved error message
dougxc Oct 27, 2023
0370178
removed unused method: JVMCIRuntime::get_field_by_index
dougxc Oct 29, 2023
a646620
avoid class loading in HotSpotConstantPool.lookupField if current thr…
dougxc Oct 29, 2023
b7181d7
allow JavaCalls in HotSpotConstantPool.callSystemExit
dougxc Oct 29, 2023
832a591
convert assertions about can_call_java to guarantees
dougxc Nov 1, 2023
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6 changes: 5 additions & 1 deletion src/hotspot/share/jvmci/jvmciCompilerToVM.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -169,11 +169,15 @@ Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
debug_only(VMNativeEntryWrapper __vew;)

// Native method block that transitions current thread to '_thread_in_vm'.
// Note: CompilerThreadCanCallJava must precede JVMCIENV_FROM_JNI so that
// the translation of an uncaught exception in the JVMCIEnv does not make
// a Java call when __is_hotspot == false.
#define C2V_BLOCK(result_type, name, signature) \
JVMCI_VM_ENTRY_MARK; \
ResourceMark rm; \
bool __is_hotspot = env == thread->jni_environment(); \
CompilerThreadCanCallJava ccj(thread, __is_hotspot); \
JVMCIENV_FROM_JNI(JVMCI::compilation_tick(thread), env); \
CompilerThreadCanCallJava ccj(thread, JVMCIENV->is_hotspot()); \

static JavaThread* get_current_thread(bool allow_null=true) {
Thread* thread = Thread::current_or_null_safe();
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