Mercurial > hg > truffle
diff src/share/vm/interpreter/bytecodes.hpp @ 413:c7ec737733a6
6756528: Bytecodes::special_length_at reads past end of code buffer
Summary: Add end-of-buffer indicator for paths used by the verifier
Reviewed-by: acorn, coleenp
| author | kamg |
|---|---|
| date | Thu, 30 Oct 2008 15:48:59 -0400 |
| parents | a61af66fc99e |
| children | ad8c8ca4ab0f |
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--- a/src/share/vm/interpreter/bytecodes.hpp Wed Oct 22 20:47:00 2008 -0700 +++ b/src/share/vm/interpreter/bytecodes.hpp Thu Oct 30 15:48:59 2008 -0400 @@ -340,8 +340,10 @@ const char* wf = wide_format(code); return (wf == NULL) ? 0 : (int)strlen(wf); } - static int special_length_at(address bcp); - static int raw_special_length_at(address bcp); + // if 'end' is provided, it indicates the end of the code buffer which + // should not be read past when parsing. + static int special_length_at(address bcp, address end = NULL); + static int raw_special_length_at(address bcp, address end = NULL); static int length_at (address bcp) { int l = length_for(code_at(bcp)); return l > 0 ? l : special_length_at(bcp); } static int java_length_at (address bcp) { int l = length_for(java_code_at(bcp)); return l > 0 ? l : special_length_at(bcp); } static bool is_java_code (Code code) { return 0 <= code && code < number_of_java_codes; }