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8079825: Uninitialised variable in hotspot/src/share/vm & cpu/x86/vm (runtime)

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Initialized local variables in classFileParser.cpp and rframe.cpp

Reviewed-by: dholmes, minqi
This commit is contained in:
Calvin Cheung 2015-07-17 12:07:49 -07:00
parent b02b2c4d5b
commit 84ff1787b7
2 changed files with 10 additions and 8 deletions
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8
hotspot/src/share/vm/classfile/classFileParser.cpp
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@ -2023,10 +2023,10 @@ methodHandle ClassFileParser::parse_method(bool is_interface,
bool lvt_allocated = false; bool lvt_allocated = false;
u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER; u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER;
u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER; u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER;
u2* localvariable_table_length; u2* localvariable_table_length = NULL;
u2** localvariable_table_start; u2** localvariable_table_start = NULL;
u2* localvariable_type_table_length; u2* localvariable_type_table_length = NULL;
u2** localvariable_type_table_start; u2** localvariable_type_table_start = NULL;
int method_parameters_length = -1; int method_parameters_length = -1;
u1* method_parameters_data = NULL; u1* method_parameters_data = NULL;
bool method_parameters_seen = false; bool method_parameters_seen = false;

6
hotspot/src/share/vm/runtime/rframe.cpp
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -81,7 +81,7 @@ DeoptimizedRFrame::DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const
: InterpretedRFrame(fr, thread, callee) {} : InterpretedRFrame(fr, thread, callee) {}
RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const callee) { RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const callee) {
RFrame* rf; RFrame* rf = NULL;
int dist = callee ? callee->distance() : -1; int dist = callee ? callee->distance() : -1;
if (fr.is_interpreted_frame()) { if (fr.is_interpreted_frame()) {
rf = new InterpretedRFrame(fr, thread, callee); rf = new InterpretedRFrame(fr, thread, callee);
@ -93,8 +93,10 @@ RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const callee) {
} else { } else {
assert(false, "Unhandled frame type"); assert(false, "Unhandled frame type");
} }
if (rf != NULL) {
rf->set_distance(dist); rf->set_distance(dist);
rf->init(); rf->init();
}
return rf; return rf;
} }