79 assert(_space_alignment != 0, "Space alignment not set up properly");
80 assert(_heap_alignment != 0, "Heap alignment not set up properly");
81 assert(_heap_alignment >= _space_alignment,
82 "heap_alignment: " SIZE_FORMAT " less than space_alignment: " SIZE_FORMAT,
83 _heap_alignment, _space_alignment);
84 assert(_heap_alignment % _space_alignment == 0,
85 "heap_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT,
86 _heap_alignment, _space_alignment);
87
88 if (FLAG_IS_CMDLINE(MaxHeapSize)) {
89 if (FLAG_IS_CMDLINE(InitialHeapSize) && InitialHeapSize > MaxHeapSize) {
90 vm_exit_during_initialization("Initial heap size set to a larger value than the maximum heap size");
91 }
92 if (_min_heap_byte_size != 0 && MaxHeapSize < _min_heap_byte_size) {
93 vm_exit_during_initialization("Incompatible minimum and maximum heap sizes specified");
94 }
95 _max_heap_size_cmdline = true;
96 }
97
98 // Check heap parameter properties
99 if (InitialHeapSize < M) {
100 vm_exit_during_initialization("Too small initial heap");
101 }
102 if (_min_heap_byte_size < M) {
103 vm_exit_during_initialization("Too small minimum heap");
104 }
105
106 // User inputs from -Xmx and -Xms must be aligned
107 _min_heap_byte_size = align_size_up(_min_heap_byte_size, _heap_alignment);
108 size_t aligned_initial_heap_size = align_size_up(InitialHeapSize, _heap_alignment);
109 size_t aligned_max_heap_size = align_size_up(MaxHeapSize, _heap_alignment);
110
111 // Write back to flags if the values changed
112 if (aligned_initial_heap_size != InitialHeapSize) {
113 FLAG_SET_ERGO(size_t, InitialHeapSize, aligned_initial_heap_size);
114 }
115 if (aligned_max_heap_size != MaxHeapSize) {
116 FLAG_SET_ERGO(size_t, MaxHeapSize, aligned_max_heap_size);
117 }
118
|
79 assert(_space_alignment != 0, "Space alignment not set up properly");
80 assert(_heap_alignment != 0, "Heap alignment not set up properly");
81 assert(_heap_alignment >= _space_alignment,
82 "heap_alignment: " SIZE_FORMAT " less than space_alignment: " SIZE_FORMAT,
83 _heap_alignment, _space_alignment);
84 assert(_heap_alignment % _space_alignment == 0,
85 "heap_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT,
86 _heap_alignment, _space_alignment);
87
88 if (FLAG_IS_CMDLINE(MaxHeapSize)) {
89 if (FLAG_IS_CMDLINE(InitialHeapSize) && InitialHeapSize > MaxHeapSize) {
90 vm_exit_during_initialization("Initial heap size set to a larger value than the maximum heap size");
91 }
92 if (_min_heap_byte_size != 0 && MaxHeapSize < _min_heap_byte_size) {
93 vm_exit_during_initialization("Incompatible minimum and maximum heap sizes specified");
94 }
95 _max_heap_size_cmdline = true;
96 }
97
98 // Check heap parameter properties
99 if (MaxHeapSize < 2 * M) {
100 vm_exit_during_initialization("Too small maximum heap");
101 }
102 if (InitialHeapSize < M) {
103 vm_exit_during_initialization("Too small initial heap");
104 }
105 if (_min_heap_byte_size < M) {
106 vm_exit_during_initialization("Too small minimum heap");
107 }
108
109 // User inputs from -Xmx and -Xms must be aligned
110 _min_heap_byte_size = align_size_up(_min_heap_byte_size, _heap_alignment);
111 size_t aligned_initial_heap_size = align_size_up(InitialHeapSize, _heap_alignment);
112 size_t aligned_max_heap_size = align_size_up(MaxHeapSize, _heap_alignment);
113
114 // Write back to flags if the values changed
115 if (aligned_initial_heap_size != InitialHeapSize) {
116 FLAG_SET_ERGO(size_t, InitialHeapSize, aligned_initial_heap_size);
117 }
118 if (aligned_max_heap_size != MaxHeapSize) {
119 FLAG_SET_ERGO(size_t, MaxHeapSize, aligned_max_heap_size);
120 }
121
|