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#include "classfile/moduleEntry.hpp"
#include "include/jvm_io.h"
#include "logging/log.hpp"
#include "memory/universe.hpp"
#include "runtime/arguments.hpp"
+ #include "runtime/globals.hpp"
#include "runtime/java.hpp"
#include "utilities/defaultStream.hpp"
bool CDSConfig::_is_dumping_static_archive = false;
bool CDSConfig::_is_dumping_dynamic_archive = false;
bool CDSConfig::_is_using_optimized_module_handling = true;
bool CDSConfig::_is_dumping_full_module_graph = true;
bool CDSConfig::_is_using_full_module_graph = true;
+ bool CDSConfig::_module_patching_disables_cds = false;
+ bool CDSConfig::_java_base_module_patching_disables_cds = false;
+
+ bool CDSConfig::is_valhalla_preview() {
+ return Arguments::enable_preview() && EnableValhalla;
+ }
+
+
char* CDSConfig::_default_archive_path = nullptr;
char* CDSConfig::_static_archive_path = nullptr;
char* CDSConfig::_dynamic_archive_path = nullptr;
int CDSConfig::get_status() {
os::jvm_path(jvm_path, sizeof(jvm_path));
char *end = strrchr(jvm_path, *os::file_separator());
if (end != nullptr) *end = '\0';
size_t jvm_path_len = strlen(jvm_path);
size_t file_sep_len = strlen(os::file_separator());
! const size_t len = jvm_path_len + file_sep_len + 20;
_default_archive_path = NEW_C_HEAP_ARRAY(char, len, mtArguments);
! jio_snprintf(_default_archive_path, len,
! LP64_ONLY(!UseCompressedOops ? "%s%sclasses_nocoops.jsa":) "%s%sclasses.jsa",
! jvm_path, os::file_separator());
}
return _default_archive_path;
}
int CDSConfig::num_archives(const char* archive_path) {
os::jvm_path(jvm_path, sizeof(jvm_path));
char *end = strrchr(jvm_path, *os::file_separator());
if (end != nullptr) *end = '\0';
size_t jvm_path_len = strlen(jvm_path);
size_t file_sep_len = strlen(os::file_separator());
! const size_t len = jvm_path_len + file_sep_len + strlen("classes_nocoops_valhalla.jsa") + 1;
_default_archive_path = NEW_C_HEAP_ARRAY(char, len, mtArguments);
! LP64_ONLY(bool nocoops = !UseCompressedOops);
! NOT_LP64(bool nocoops = false);
! bool valhalla = is_valhalla_preview();
+ jio_snprintf(_default_archive_path, len, "%s%sclasses%s%s.jsa",
+ jvm_path, os::file_separator(),
+ nocoops ? "_nocoops" : "",
+ valhalla ? "_valhalla" : "");
}
return _default_archive_path;
}
int CDSConfig::num_archives(const char* archive_path) {
// The following properties are checked by Arguments::is_internal_module_property() and cannot be
// directly specified in the command-line.
static const char* unsupported_module_properties[] = {
"jdk.module.limitmods",
! "jdk.module.upgrade.path",
- "jdk.module.patch.0"
};
static const char* unsupported_module_options[] = {
"--limit-modules",
! "--upgrade-module-path",
- "--patch-module"
};
assert(ARRAY_SIZE(unsupported_module_properties) == ARRAY_SIZE(unsupported_module_options), "must be");
SystemProperty* sp = Arguments::system_properties();
while (sp != nullptr) {
// The following properties are checked by Arguments::is_internal_module_property() and cannot be
// directly specified in the command-line.
static const char* unsupported_module_properties[] = {
"jdk.module.limitmods",
! "jdk.module.upgrade.path"
};
static const char* unsupported_module_options[] = {
"--limit-modules",
! "--upgrade-module-path"
};
assert(ARRAY_SIZE(unsupported_module_properties) == ARRAY_SIZE(unsupported_module_options), "must be");
SystemProperty* sp = Arguments::system_properties();
while (sp != nullptr) {
assert(is_dumping_archive(), "this function is only used with CDS dump time");
const char* option = find_any_unsupported_module_option();
if (option != nullptr) {
vm_exit_during_initialization("Cannot use the following option when dumping the shared archive", option);
}
+
+ if (module_patching_disables_cds()) {
+ vm_exit_during_initialization(
+ "Cannot use the following option when dumping the shared archive", "--patch-module");
+ }
+
// Check for an exploded module build in use with -Xshare:dump.
if (!Arguments::has_jimage()) {
vm_exit_during_initialization("Dumping the shared archive is not supported with an exploded module build");
}
}
} else {
log_info(cds)("CDS is disabled when the %s option is specified.", option);
}
return true;
}
return false;
}
! bool CDSConfig::check_vm_args_consistency(bool patch_mod_javabase, bool mode_flag_cmd_line) {
if (is_dumping_static_archive()) {
if (!mode_flag_cmd_line) {
// By default, -Xshare:dump runs in interpreter-only mode, which is required for deterministic archive.
//
// If your classlist is large and you don't care about deterministic dumping, you can use
} else {
log_info(cds)("CDS is disabled when the %s option is specified.", option);
}
return true;
}
+
+ if (module_patching_disables_cds()) {
+ if (RequireSharedSpaces) {
+ warning("CDS is disabled when the %s option is specified.", "--patch-module");
+ } else {
+ log_info(cds)("CDS is disabled when the %s option is specified.", "--patch-module");
+ }
+ return true;
+ }
+
return false;
}
! bool CDSConfig::check_vm_args_consistency(bool mode_flag_cmd_line) {
if (is_dumping_static_archive()) {
if (!mode_flag_cmd_line) {
// By default, -Xshare:dump runs in interpreter-only mode, which is required for deterministic archive.
//
// If your classlist is large and you don't care about deterministic dumping, you can use
log_warning(cds)("-XX:+AutoCreateSharedArchive does not work with ArchiveClassesAtExit");
return false;
}
}
! if (is_using_archive() && patch_mod_javabase) {
Arguments::no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME " module is patched.");
}
if (is_using_archive() && has_unsupported_runtime_module_options()) {
UseSharedSpaces = false;
}
log_warning(cds)("-XX:+AutoCreateSharedArchive does not work with ArchiveClassesAtExit");
return false;
}
}
! if (is_using_archive() && java_base_module_patching_disables_cds() && module_patching_disables_cds()) {
Arguments::no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME " module is patched.");
}
if (is_using_archive() && has_unsupported_runtime_module_options()) {
UseSharedSpaces = false;
}
_is_using_full_module_graph = false; // This requires is_using_optimized_module_handling()
}
#if INCLUDE_CDS_JAVA_HEAP
bool CDSConfig::is_dumping_heap() {
+ if (is_valhalla_preview()) {
+ // Not working yet -- e.g., HeapShared::oop_hash() needs to be implemented for value oops
+ return false;
+ }
// heap dump is not supported in dynamic dump
return is_dumping_static_archive() && HeapShared::can_write();
}
bool CDSConfig::is_using_full_module_graph() {
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