/*
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "jvm.h"
#include "classfile/stringTable.hpp"
#include "classfile/symbolTable.hpp"
#include "gc/shared/referenceProcessor.hpp"
#include "oops/markOop.hpp"
#include "runtime/arguments.hpp"
#include "runtime/flags/jvmFlag.hpp"
#include "runtime/flags/jvmFlagConstraintList.hpp"
#include "runtime/flags/jvmFlagRangeList.hpp"
#include "runtime/globals_extension.hpp"
#include "runtime/os.hpp"
#include "runtime/task.hpp"
#include "utilities/defaultStream.hpp"
#include "utilities/macros.hpp"
void CommandLineError::print(bool verbose, const char* msg, ...) {
if (verbose) {
va_list listPointer;
va_start(listPointer, msg);
jio_vfprintf(defaultStream::error_stream(), msg, listPointer);
va_end(listPointer);
}
}
class JVMFlagRange_int : public JVMFlagRange {
int _min;
int _max;
const int* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_int(const char* name, const int* ptr, int min, int max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_int(*_ptr, verbose);
}
JVMFlag::Error check_int(int value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"int %s=%d is outside the allowed range "
"[ %d ... %d ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ %-25d ... %25d ]", _min, _max);
}
};
class JVMFlagRange_intx : public JVMFlagRange {
intx _min;
intx _max;
const intx* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_intx(const char* name, const intx* ptr, intx min, intx max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_intx(*_ptr, verbose);
}
JVMFlag::Error check_intx(intx value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"intx %s=" INTX_FORMAT " is outside the allowed range "
"[ " INTX_FORMAT " ... " INTX_FORMAT " ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ " INTX_FORMAT_W(-25) " ... " INTX_FORMAT_W(25) " ]", _min, _max);
}
};
class JVMFlagRange_uint : public JVMFlagRange {
uint _min;
uint _max;
const uint* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_uint(const char* name, const uint* ptr, uint min, uint max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_uint(*_ptr, verbose);
}
JVMFlag::Error check_uint(uint value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"uint %s=%u is outside the allowed range "
"[ %u ... %u ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ %-25u ... %25u ]", _min, _max);
}
};
class JVMFlagRange_uintx : public JVMFlagRange {
uintx _min;
uintx _max;
const uintx* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_uintx(const char* name, const uintx* ptr, uintx min, uintx max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_uintx(*_ptr, verbose);
}
JVMFlag::Error check_uintx(uintx value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"uintx %s=" UINTX_FORMAT " is outside the allowed range "
"[ " UINTX_FORMAT " ... " UINTX_FORMAT " ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ " UINTX_FORMAT_W(-25) " ... " UINTX_FORMAT_W(25) " ]", _min, _max);
}
};
class JVMFlagRange_uint64_t : public JVMFlagRange {
uint64_t _min;
uint64_t _max;
const uint64_t* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_uint64_t(const char* name, const uint64_t* ptr, uint64_t min, uint64_t max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_uint64_t(*_ptr, verbose);
}
JVMFlag::Error check_uint64_t(uint64_t value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"uint64_t %s=" UINT64_FORMAT " is outside the allowed range "
"[ " UINT64_FORMAT " ... " UINT64_FORMAT " ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ " UINT64_FORMAT_W(-25) " ... " UINT64_FORMAT_W(25) " ]", _min, _max);
}
};
class JVMFlagRange_size_t : public JVMFlagRange {
size_t _min;
size_t _max;
const size_t* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_size_t(const char* name, const size_t* ptr, size_t min, size_t max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_size_t(*_ptr, verbose);
}
JVMFlag::Error check_size_t(size_t value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"size_t %s=" SIZE_FORMAT " is outside the allowed range "
"[ " SIZE_FORMAT " ... " SIZE_FORMAT " ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ " SIZE_FORMAT_W(-25) " ... " SIZE_FORMAT_W(25) " ]", _min, _max);
}
};
class JVMFlagRange_double : public JVMFlagRange {
double _min;
double _max;
const double* _ptr;
public:
// the "name" argument must be a string literal
JVMFlagRange_double(const char* name, const double* ptr, double min, double max)
: JVMFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
JVMFlag::Error check(bool verbose = true) {
return check_double(*_ptr, verbose);
}
JVMFlag::Error check_double(double value, bool verbose = true) {
if ((value < _min) || (value > _max)) {
CommandLineError::print(verbose,
"double %s=%f is outside the allowed range "
"[ %f ... %f ]\n",
name(), value, _min, _max);
return JVMFlag::OUT_OF_BOUNDS;
} else {
return JVMFlag::SUCCESS;
}
}
void print(outputStream* st) {
st->print("[ %-25.3f ... %25.3f ]", _min, _max);
}
};
// No constraint emitting
void emit_range_no(...) { /* NOP */ }
// No constraint emitting if function argument is NOT provided
void emit_range_bool(const char* /*name*/, const bool* /*value*/) { /* NOP */ }
void emit_range_ccstr(const char* /*name*/, const ccstr* /*value*/) { /* NOP */ }
void emit_range_ccstrlist(const char* /*name*/, const ccstrlist* /*value*/) { /* NOP */ }
void emit_range_int(const char* /*name*/, const int* /*value*/) { /* NOP */ }
void emit_range_intx(const char* /*name*/, const intx* /*value*/) { /* NOP */ }
void emit_range_uint(const char* /*name*/, const uint* /*value*/) { /* NOP */ }
void emit_range_uintx(const char* /*name*/, const uintx* /*value*/) { /* NOP */ }
void emit_range_uint64_t(const char* /*name*/, const uint64_t* /*value*/) { /* NOP */ }
void emit_range_size_t(const char* /*name*/, const size_t* /*value*/) { /* NOP */ }
void emit_range_double(const char* /*name*/, const double* /*value*/) { /* NOP */ }
// JVMFlagRange emitting code functions if range arguments are provided
void emit_range_int(const char* name, const int* ptr, int min, int max) {
JVMFlagRangeList::add(new JVMFlagRange_int(name, ptr, min, max));
}
void emit_range_intx(const char* name, const intx* ptr, intx min, intx max) {
JVMFlagRangeList::add(new JVMFlagRange_intx(name, ptr, min, max));
}
void emit_range_uint(const char* name, const uint* ptr, uint min, uint max) {
JVMFlagRangeList::add(new JVMFlagRange_uint(name, ptr, min, max));
}
void emit_range_uintx(const char* name, const uintx* ptr, uintx min, uintx max) {
JVMFlagRangeList::add(new JVMFlagRange_uintx(name, ptr, min, max));
}
void emit_range_uint64_t(const char* name, const uint64_t* ptr, uint64_t min, uint64_t max) {
JVMFlagRangeList::add(new JVMFlagRange_uint64_t(name, ptr, min, max));
}
void emit_range_size_t(const char* name, const size_t* ptr, size_t min, size_t max) {
JVMFlagRangeList::add(new JVMFlagRange_size_t(name, ptr, min, max));
}
void emit_range_double(const char* name, const double* ptr, double min, double max) {
JVMFlagRangeList::add(new JVMFlagRange_double(name, ptr, min, max));
}
// Generate code to call emit_range_xxx function
#define EMIT_RANGE_PRODUCT_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_COMMERCIAL_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_DIAGNOSTIC_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_EXPERIMENTAL_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_MANAGEABLE_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_PRODUCT_RW_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_PD_PRODUCT_FLAG(type, name, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_PD_DIAGNOSTIC_FLAG(type, name, doc) ); emit_range_##type(#name,&name
#ifndef PRODUCT
#define EMIT_RANGE_DEVELOPER_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_PD_DEVELOPER_FLAG(type, name, doc) ); emit_range_##type(#name,&name
#define EMIT_RANGE_NOTPRODUCT_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#else
#define EMIT_RANGE_DEVELOPER_FLAG(type, name, value, doc) ); emit_range_no(#name,&name
#define EMIT_RANGE_PD_DEVELOPER_FLAG(type, name, doc) ); emit_range_no(#name,&name
#define EMIT_RANGE_NOTPRODUCT_FLAG(type, name, value, doc) ); emit_range_no(#name,&name
#endif
#ifdef _LP64
#define EMIT_RANGE_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_range_##type(#name,&name
#else
#define EMIT_RANGE_LP64_PRODUCT_FLAG(type, name, value, doc) ); emit_range_no(#name,&name
#endif
// Generate func argument to pass into emit_range_xxx functions
#define EMIT_RANGE_CHECK(a, b) , a, b
#define INITIAL_RANGES_SIZE 379
GrowableArray<JVMFlagRange*>* JVMFlagRangeList::_ranges = NULL;
// Check the ranges of all flags that have them
void JVMFlagRangeList::init(void) {
_ranges = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<JVMFlagRange*>(INITIAL_RANGES_SIZE, true);
emit_range_no(NULL VM_FLAGS(EMIT_RANGE_DEVELOPER_FLAG,
EMIT_RANGE_PD_DEVELOPER_FLAG,
EMIT_RANGE_PRODUCT_FLAG,
EMIT_RANGE_PD_PRODUCT_FLAG,
EMIT_RANGE_DIAGNOSTIC_FLAG,
EMIT_RANGE_PD_DIAGNOSTIC_FLAG,
EMIT_RANGE_EXPERIMENTAL_FLAG,
EMIT_RANGE_NOTPRODUCT_FLAG,
EMIT_RANGE_MANAGEABLE_FLAG,
EMIT_RANGE_PRODUCT_RW_FLAG,
EMIT_RANGE_LP64_PRODUCT_FLAG,
EMIT_RANGE_CHECK,
IGNORE_CONSTRAINT,
IGNORE_WRITEABLE));
EMIT_RANGES_FOR_GLOBALS_EXT
emit_range_no(NULL ARCH_FLAGS(EMIT_RANGE_DEVELOPER_FLAG,
EMIT_RANGE_PRODUCT_FLAG,
EMIT_RANGE_DIAGNOSTIC_FLAG,
EMIT_RANGE_EXPERIMENTAL_FLAG,
EMIT_RANGE_NOTPRODUCT_FLAG,
EMIT_RANGE_CHECK,
IGNORE_CONSTRAINT,
IGNORE_WRITEABLE));
#if INCLUDE_JVMCI
emit_range_no(NULL JVMCI_FLAGS(EMIT_RANGE_DEVELOPER_FLAG,
EMIT_RANGE_PD_DEVELOPER_FLAG,
EMIT_RANGE_PRODUCT_FLAG,
EMIT_RANGE_PD_PRODUCT_FLAG,
EMIT_RANGE_DIAGNOSTIC_FLAG,
EMIT_RANGE_PD_DIAGNOSTIC_FLAG,
EMIT_RANGE_EXPERIMENTAL_FLAG,
EMIT_RANGE_NOTPRODUCT_FLAG,
EMIT_RANGE_CHECK,
IGNORE_CONSTRAINT,
IGNORE_WRITEABLE));
#endif // INCLUDE_JVMCI
#ifdef COMPILER1
emit_range_no(NULL C1_FLAGS(EMIT_RANGE_DEVELOPER_FLAG,
EMIT_RANGE_PD_DEVELOPER_FLAG,
EMIT_RANGE_PRODUCT_FLAG,
EMIT_RANGE_PD_PRODUCT_FLAG,
EMIT_RANGE_DIAGNOSTIC_FLAG,
EMIT_RANGE_PD_DIAGNOSTIC_FLAG,
EMIT_RANGE_NOTPRODUCT_FLAG,
EMIT_RANGE_CHECK,
IGNORE_CONSTRAINT,
IGNORE_WRITEABLE));
#endif // COMPILER1
#ifdef COMPILER2
emit_range_no(NULL C2_FLAGS(EMIT_RANGE_DEVELOPER_FLAG,
EMIT_RANGE_PD_DEVELOPER_FLAG,
EMIT_RANGE_PRODUCT_FLAG,
EMIT_RANGE_PD_PRODUCT_FLAG,
EMIT_RANGE_DIAGNOSTIC_FLAG,
EMIT_RANGE_PD_DIAGNOSTIC_FLAG,
EMIT_RANGE_EXPERIMENTAL_FLAG,
EMIT_RANGE_NOTPRODUCT_FLAG,
EMIT_RANGE_CHECK,
IGNORE_CONSTRAINT,
IGNORE_WRITEABLE));
#endif // COMPILER2
}
JVMFlagRange* JVMFlagRangeList::find(const char* name) {
JVMFlagRange* found = NULL;
for (int i=0; i<length(); i++) {
JVMFlagRange* range = at(i);
if (strcmp(range->name(), name) == 0) {
found = range;
break;
}
}
return found;
}
void JVMFlagRangeList::print(outputStream* st, const char* name, RangeStrFunc default_range_str_func) {
JVMFlagRange* range = JVMFlagRangeList::find(name);
if (range != NULL) {
range->print(st);
} else {
JVMFlagConstraint* constraint = JVMFlagConstraintList::find(name);
if (constraint != NULL) {
assert(default_range_str_func!=NULL, "default_range_str_func must be provided");
st->print("%s", default_range_str_func());
} else {
st->print("[ ... ]");
}
}
}
bool JVMFlagRangeList::check_ranges() {
// Check ranges.
bool status = true;
for (int i=0; i<length(); i++) {
JVMFlagRange* range = at(i);
if (range->check(true) != JVMFlag::SUCCESS) status = false;
}
return status;
}