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8247536: Support for pre-generated java.lang.invoke classes in CDS static archive

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Reviewed-by: iklam, mchung
This commit is contained in:
Yumin Qi 2020-10-10 02:06:52 +00:00
parent 7ec9c8eac7
commit e4469d2c8c
22 changed files with 537 additions and 20 deletions
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13
src/hotspot/share/classfile/classFileParser.cpp
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@ -6056,7 +6056,18 @@ void ClassFileParser::mangle_hidden_class_name(InstanceKlass* const ik) {
// use an illegal char such as ';' because that causes serialization issues
// and issues with hidden classes that create their own hidden classes.
char addr_buf[20];
jio_snprintf(addr_buf, 20, INTPTR_FORMAT, p2i(ik));
if (DumpSharedSpaces) {
// We want stable names for the archived hidden classes (only for static
// archive for now). Spaces under default_SharedBaseAddress() will be
// occupied by the archive at run time, so we know that no dynamically
// loaded InstanceKlass will be placed under there.
static volatile size_t counter = 0;
Atomic::cmpxchg(&counter, (size_t)0, Arguments::default_SharedBaseAddress()); // initialize it
size_t new_id = Atomic::add(&counter, (size_t)1);
jio_snprintf(addr_buf, 20, SIZE_FORMAT_HEX, new_id);
} else {
jio_snprintf(addr_buf, 20, INTPTR_FORMAT, p2i(ik));
}
size_t new_name_len = _class_name->utf8_length() + 2 + strlen(addr_buf);
char* new_name = NEW_RESOURCE_ARRAY(char, new_name_len);
jio_snprintf(new_name, new_name_len, "%s+%s",