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8268829: Provide an optimized way to walk the stack with Class object only

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8210375: StackWalker::getCallerClass throws UnsupportedOperationException

Reviewed-by: coleenp, dfuchs, bchristi
This commit is contained in:
Mandy Chung 2023-09-07 21:37:40 +00:00
parent 716201c77d
commit 111ecdbaf5
34 changed files with 982 additions and 622 deletions
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34
src/hotspot/share/classfile/javaClasses.hpp
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@ -1199,7 +1199,6 @@ class jdk_internal_foreign_abi_CallConv: AllStatic {
// (These are a private interface for Java code to query the class hierarchy.)
#define RESOLVEDMETHOD_INJECTED_FIELDS(macro) \
macro(java_lang_invoke_ResolvedMethodName, vmholder, object_signature, false) \
macro(java_lang_invoke_ResolvedMethodName, vmtarget, intptr_signature, false)
class java_lang_invoke_ResolvedMethodName : AllStatic {
@ -1288,6 +1287,7 @@ class java_lang_invoke_MemberName: AllStatic {
MN_IS_TYPE = 0x00080000, // nested type
MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
MN_TRUSTED_FINAL = 0x00200000, // trusted final field
MN_HIDDEN_MEMBER = 0x00400000, // @Hidden annotation detected
MN_REFERENCE_KIND_SHIFT = 24, // refKind
MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
MN_NESTMATE_CLASS = 0x00000001,
@ -1591,6 +1591,26 @@ class Backtrace: AllStatic {
friend class JavaClasses;
};
class java_lang_ClassFrameInfo: AllStatic {
private:
static int _classOrMemberName_offset;
static int _flags_offset;
public:
static oop classOrMemberName(oop info);
static int flags(oop info);
// Setters
static void init_class(Handle stackFrame, const methodHandle& m);
static void init_method(Handle stackFrame, const methodHandle& m, TRAPS);
static void compute_offsets();
static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
// Debugging
friend class JavaClasses;
};
// Interface to java.lang.StackFrameInfo objects
#define STACKFRAMEINFO_INJECTED_FIELDS(macro) \
@ -1598,16 +1618,22 @@ class Backtrace: AllStatic {
class java_lang_StackFrameInfo: AllStatic {
private:
static int _memberName_offset;
static int _type_offset;
static int _name_offset;
static int _bci_offset;
static int _version_offset;
static int _contScope_offset;
static Method* get_method(Handle stackFrame, InstanceKlass* holder, TRAPS);
public:
// Getters
static oop name(oop info);
static oop type(oop info);
static Method* get_method(oop info);
// Setters
static void set_method_and_bci(Handle stackFrame, const methodHandle& method, int bci, oop cont, TRAPS);
static void set_name(oop info, oop value);
static void set_type(oop info, oop value);
static void set_bci(oop info, int value);
static void set_version(oop info, short value);