Mercurial > hg > truffle
diff src/share/vm/classfile/javaClasses.cpp @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | 18fb7da42534 |
| children | 80e866b1d053 |
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--- a/src/share/vm/classfile/javaClasses.cpp Fri Nov 09 08:36:17 2012 -0800 +++ b/src/share/vm/classfile/javaClasses.cpp Mon Nov 12 14:03:53 2012 -0800 @@ -348,6 +348,22 @@ return java_lang_String::to_hash(value->char_at_addr(offset), length); } +char* java_lang_String::as_quoted_ascii(oop java_string) { + typeArrayOop value = java_lang_String::value(java_string); + int offset = java_lang_String::offset(java_string); + int length = java_lang_String::length(java_string); + + jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); + if (base == NULL) return NULL; + + int result_length = UNICODE::quoted_ascii_length(base, length) + 1; + char* result = NEW_RESOURCE_ARRAY(char, result_length); + UNICODE::as_quoted_ascii(base, length, result, result_length); + assert(result_length >= length + 1, "must not be shorter"); + assert(result_length == (int)strlen(result) + 1, "must match"); + return result; +} + unsigned int java_lang_String::hash_string(oop java_string) { int length = java_lang_String::length(java_string); // Zero length string doesn't hash necessarily hash to zero.