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8150778: Reduce Throwable.getStackTrace() calls to the JVM

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Replace JVM_GetStackTraceDepth and JVM_GetStackTraceElement, with JVM_GetStackTraceElements that gets all the elements in the StackTraceElement[]

Reviewed-by: shade, mchung, dholmes, hseigel
This commit is contained in:
Coleen Phillimore 2016-03-10 13:43:47 -05:00
parent fc407c943e
commit 4a05d83db0
9 changed files with 312 additions and 163 deletions
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23
hotspot/src/share/vm/classfile/javaClasses.hpp
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@ -440,6 +440,7 @@ class java_lang_ThreadGroup : AllStatic {
class java_lang_Throwable: AllStatic {
friend class BacktraceBuilder;
friend class BacktraceIterator;
private:
// Offsets
@ -465,16 +466,12 @@ class java_lang_Throwable: AllStatic {
static int backtrace_offset;
static int detailMessage_offset;
static int cause_offset;
static int stackTrace_offset;
static int depth_offset;
static int static_unassigned_stacktrace_offset;
// Printing
static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci, int cpref);
// StackTrace (programmatic access, new since 1.4)
static void clear_stacktrace(oop throwable);
// No stack trace available
static const char* no_stack_trace_message();
// Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed)
static void set_stacktrace(oop throwable, oop st_element_array);
static oop unassigned_stacktrace();
@ -483,19 +480,20 @@ class java_lang_Throwable: AllStatic {
// Backtrace
static oop backtrace(oop throwable);
static void set_backtrace(oop throwable, oop value);
static int depth(oop throwable);
static void set_depth(oop throwable, int value);
// Needed by JVMTI to filter out this internal field.
static int get_backtrace_offset() { return backtrace_offset;}
static int get_detailMessage_offset() { return detailMessage_offset;}
// Message
static oop message(oop throwable);
static oop message(Handle throwable);
static void set_message(oop throwable, oop value);
static Symbol* detail_message(oop throwable);
static void print_stack_element(outputStream *st, Handle mirror, int method,
int version, int bci, int cpref);
static void print_stack_element(outputStream *st, const methodHandle& method, int bci);
static void print_stack_usage(Handle stream);
static void compute_offsets();
// Allocate space for backtrace (created but stack trace not filled in)
static void allocate_backtrace(Handle throwable, TRAPS);
// Fill in current stack trace for throwable with preallocated backtrace (no GC)
@ -504,8 +502,7 @@ class java_lang_Throwable: AllStatic {
static void fill_in_stack_trace(Handle throwable, const methodHandle& method, TRAPS);
static void fill_in_stack_trace(Handle throwable, const methodHandle& method = methodHandle());
// Programmatic access to stack trace
static oop get_stack_trace_element(oop throwable, int index, TRAPS);
static int get_stack_trace_depth(oop throwable, TRAPS);
static void get_stack_trace_elements(Handle throwable, objArrayHandle stack_trace, TRAPS);
// Printing
static void print(Handle throwable, outputStream* st);
static void print_stack_trace(Handle throwable, outputStream* st);
@ -1277,17 +1274,19 @@ class java_lang_StackTraceElement: AllStatic {
static int fileName_offset;
static int lineNumber_offset;
public:
// Setters
static void set_declaringClass(oop element, oop value);
static void set_methodName(oop element, oop value);
static void set_fileName(oop element, oop value);
static void set_lineNumber(oop element, int value);
public:
// Create an instance of StackTraceElement
static oop create(Handle mirror, int method, int version, int bci, int cpref, TRAPS);
static oop create(const methodHandle& method, int bci, TRAPS);
static void fill_in(Handle element, InstanceKlass* holder, const methodHandle& method,
int version, int bci, int cpref, TRAPS);
// Debugging
friend class JavaClasses;
};