src/hotspot/share/runtime/commandLineFlagRangeList.cpp
changeset 49860 ca5216a2a2cc
child 56478 90df053536e0
child 56489 016b77c3734a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/runtime/commandLineFlagRangeList.cpp	Mon Apr 23 14:51:16 2018 -0500
@@ -0,0 +1,441 @@
+/*
+ * 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/commandLineFlagConstraintList.hpp"
+#include "runtime/commandLineFlagRangeList.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 CommandLineFlagRange_int : public CommandLineFlagRange {
+  int _min;
+  int _max;
+  const int* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_int(const char* name, const int* ptr, int min, int max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_int(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ %-25d ... %25d ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_intx : public CommandLineFlagRange {
+  intx _min;
+  intx _max;
+  const intx* _ptr;
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_intx(const char* name, const intx* ptr, intx min, intx max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_intx(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ " INTX_FORMAT_W(-25) " ... " INTX_FORMAT_W(25) " ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_uint : public CommandLineFlagRange {
+  uint _min;
+  uint _max;
+  const uint* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_uint(const char* name, const uint* ptr, uint min, uint max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_uint(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ %-25u ... %25u ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_uintx : public CommandLineFlagRange {
+  uintx _min;
+  uintx _max;
+  const uintx* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_uintx(const char* name, const uintx* ptr, uintx min, uintx max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_uintx(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ " UINTX_FORMAT_W(-25) " ... " UINTX_FORMAT_W(25) " ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_uint64_t : public CommandLineFlagRange {
+  uint64_t _min;
+  uint64_t _max;
+  const uint64_t* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_uint64_t(const char* name, const uint64_t* ptr, uint64_t min, uint64_t max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_uint64_t(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ " UINT64_FORMAT_W(-25) " ... " UINT64_FORMAT_W(25) " ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_size_t : public CommandLineFlagRange {
+  size_t _min;
+  size_t _max;
+  const size_t* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_size_t(const char* name, const size_t* ptr, size_t min, size_t max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_size_t(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::SUCCESS;
+    }
+  }
+
+  void print(outputStream* st) {
+    st->print("[ " SIZE_FORMAT_W(-25) " ... " SIZE_FORMAT_W(25) " ]", _min, _max);
+  }
+};
+
+class CommandLineFlagRange_double : public CommandLineFlagRange {
+  double _min;
+  double _max;
+  const double* _ptr;
+
+public:
+  // the "name" argument must be a string literal
+  CommandLineFlagRange_double(const char* name, const double* ptr, double min, double max)
+    : CommandLineFlagRange(name), _min(min), _max(max), _ptr(ptr) {}
+
+  Flag::Error check(bool verbose = true) {
+    return check_double(*_ptr, verbose);
+  }
+
+  Flag::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 Flag::OUT_OF_BOUNDS;
+    } else {
+      return Flag::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 */ }
+
+// CommandLineFlagRange emitting code functions if range arguments are provided
+void emit_range_int(const char* name, const int* ptr, int min, int max)       {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_int(name, ptr, min, max));
+}
+void emit_range_intx(const char* name, const intx* ptr, intx min, intx max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_intx(name, ptr, min, max));
+}
+void emit_range_uint(const char* name, const uint* ptr, uint min, uint max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_uint(name, ptr, min, max));
+}
+void emit_range_uintx(const char* name, const uintx* ptr, uintx min, uintx max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_uintx(name, ptr, min, max));
+}
+void emit_range_uint64_t(const char* name, const uint64_t* ptr, uint64_t min, uint64_t max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_uint64_t(name, ptr, min, max));
+}
+void emit_range_size_t(const char* name, const size_t* ptr, size_t min, size_t max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_size_t(name, ptr, min, max));
+}
+void emit_range_double(const char* name, const double* ptr, double min, double max) {
+  CommandLineFlagRangeList::add(new CommandLineFlagRange_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<CommandLineFlagRange*>* CommandLineFlagRangeList::_ranges = NULL;
+
+// Check the ranges of all flags that have them
+void CommandLineFlagRangeList::init(void) {
+
+  _ranges = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<CommandLineFlagRange*>(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
+}
+
+CommandLineFlagRange* CommandLineFlagRangeList::find(const char* name) {
+  CommandLineFlagRange* found = NULL;
+  for (int i=0; i<length(); i++) {
+    CommandLineFlagRange* range = at(i);
+    if (strcmp(range->name(), name) == 0) {
+      found = range;
+      break;
+    }
+  }
+  return found;
+}
+
+void CommandLineFlagRangeList::print(outputStream* st, const char* name, RangeStrFunc default_range_str_func) {
+  CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
+  if (range != NULL) {
+    range->print(st);
+  } else {
+    CommandLineFlagConstraint* constraint = CommandLineFlagConstraintList::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 CommandLineFlagRangeList::check_ranges() {
+  // Check ranges.
+  bool status = true;
+  for (int i=0; i<length(); i++) {
+    CommandLineFlagRange* range = at(i);
+    if (range->check(true) != Flag::SUCCESS) status = false;
+  }
+  return status;
+}