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7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer

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Reviewed-by: kvn, jrose, twisti
This commit is contained in:
Tom Rodriguez 2011-11-08 10:31:53 -08:00
parent 0bc2963b7d
commit 051c64ad4d
9 changed files with 74 additions and 32 deletions
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9
hotspot/src/share/vm/asm/codeBuffer.hpp
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@ -362,10 +362,8 @@ class CodeBuffer: public StackObj {
// helper for CodeBuffer::expand()
void take_over_code_from(CodeBuffer* cs);
#ifdef ASSERT
// ensure sections are disjoint, ordered, and contained in the blob
bool verify_section_allocation();
#endif
void verify_section_allocation();
// copies combined relocations to the blob, returns bytes copied
// (if target is null, it is a dry run only, just for sizing)
@ -393,7 +391,7 @@ class CodeBuffer: public StackObj {
assert(code_start != NULL, "sanity");
initialize_misc("static buffer");
initialize(code_start, code_size);
assert(verify_section_allocation(), "initial use of buffer OK");
verify_section_allocation();
}
// (2) CodeBuffer referring to pre-allocated CodeBlob.
@ -545,6 +543,9 @@ class CodeBuffer: public StackObj {
void block_comment(intptr_t offset, const char * comment) PRODUCT_RETURN;
// Log a little info about section usage in the CodeBuffer
void log_section_sizes(const char* name);
#ifndef PRODUCT
public:
// Printing / Decoding