1833 #if !INCLUDE_ALL_GCS
1834 #ifdef ASSERT
1835 static bool verify_serial_gc_flags() {
1836 return (UseSerialGC &&
1837 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC ||
1838 UseParallelGC || UseParallelOldGC));
1839 }
1840 #endif // ASSERT
1841 #endif // INCLUDE_ALL_GCS
1842
1843 // check if do gclog rotation
1844 // +UseGCLogFileRotation is a must,
1845 // no gc log rotation when log file not supplied or
1846 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0
1847 void check_gclog_consistency() {
1848 if (UseGCLogFileRotation) {
1849 if ((Arguments::gc_log_filename() == NULL) ||
1850 (NumberOfGCLogFiles == 0) ||
1851 (GCLogFileSize == 0)) {
1852 jio_fprintf(defaultStream::output_stream(),
1853 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n"
1854 "where num_of_file > 0 and num_of_size > 0\n"
1855 "GC log rotation is turned off\n");
1856 UseGCLogFileRotation = false;
1857 }
1858 }
1859
1860 if (UseGCLogFileRotation && GCLogFileSize < 8*K) {
1861 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K);
1862 jio_fprintf(defaultStream::output_stream(),
1863 "GCLogFileSize changed to minimum 8K\n");
1864 }
1865 }
1866
1867 // Check consistency of GC selection
1868 bool Arguments::check_gc_consistency() {
1869 check_gclog_consistency();
1870 bool status = true;
1871 // Ensure that the user has not selected conflicting sets
1872 // of collectors. [Note: this check is merely a user convenience;
1873 // collectors over-ride each other so that only a non-conflicting
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1833 #if !INCLUDE_ALL_GCS
1834 #ifdef ASSERT
1835 static bool verify_serial_gc_flags() {
1836 return (UseSerialGC &&
1837 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC ||
1838 UseParallelGC || UseParallelOldGC));
1839 }
1840 #endif // ASSERT
1841 #endif // INCLUDE_ALL_GCS
1842
1843 // check if do gclog rotation
1844 // +UseGCLogFileRotation is a must,
1845 // no gc log rotation when log file not supplied or
1846 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0
1847 void check_gclog_consistency() {
1848 if (UseGCLogFileRotation) {
1849 if ((Arguments::gc_log_filename() == NULL) ||
1850 (NumberOfGCLogFiles == 0) ||
1851 (GCLogFileSize == 0)) {
1852 jio_fprintf(defaultStream::output_stream(),
1853 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>[k|K|m|M]\n"
1854 "where num_of_file > 0 and num_of_size > 0\n"
1855 "GC log rotation is turned off\n");
1856 UseGCLogFileRotation = false;
1857 }
1858 }
1859
1860 if (UseGCLogFileRotation && GCLogFileSize < 8*K) {
1861 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K);
1862 jio_fprintf(defaultStream::output_stream(),
1863 "GCLogFileSize changed to minimum 8K\n");
1864 }
1865 }
1866
1867 // Check consistency of GC selection
1868 bool Arguments::check_gc_consistency() {
1869 check_gclog_consistency();
1870 bool status = true;
1871 // Ensure that the user has not selected conflicting sets
1872 // of collectors. [Note: this check is merely a user convenience;
1873 // collectors over-ride each other so that only a non-conflicting
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