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
1874 // set is selected; however what the user gets is not what they
1875 // may have expected from the combination they asked for. It's
1876 // better to reduce user confusion by not allowing them to
1877 // select conflicting combinations.
1878 uint i = 0;
1879 if (UseSerialGC) i++;
1880 if (UseConcMarkSweepGC || UseParNewGC) i++;
1881 if (UseParallelGC || UseParallelOldGC) i++;
1882 if (UseG1GC) i++;
1883 if (i > 1) {
1884 jio_fprintf(defaultStream::error_stream(),
1885 "Conflicting collector combinations in option list; "
1886 "please refer to the release notes for the combinations "
2800 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false);
2801 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false);
2802 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) {
2803 return JNI_EINVAL;
2804 }
2805 // -Xdebug
2806 } else if (match_option(option, "-Xdebug", &tail)) {
2807 // note this flag has been used, then ignore
2808 set_xdebug_mode(true);
2809 // -Xnoagent
2810 } else if (match_option(option, "-Xnoagent", &tail)) {
2811 // For compatibility with classic. HotSpot refuses to load the old style agent.dll.
2812 } else if (match_option(option, "-Xboundthreads", &tail)) {
2813 // Bind user level threads to kernel threads (Solaris only)
2814 FLAG_SET_CMDLINE(bool, UseBoundThreads, true);
2815 } else if (match_option(option, "-Xloggc:", &tail)) {
2816 // Redirect GC output to the file. -Xloggc:<filename>
2817 // ostream_init_log(), when called will use this filename
2818 // to initialize a fileStream.
2819 _gc_log_filename = strdup(tail);
2820 FLAG_SET_CMDLINE(bool, PrintGC, true);
2821 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true);
2822
2823 // JNI hooks
2824 } else if (match_option(option, "-Xcheck", &tail)) {
2825 if (!strcmp(tail, ":jni")) {
2826 #if !INCLUDE_JNI_CHECK
2827 warning("JNI CHECKING is not supported in this VM");
2828 #else
2829 CheckJNICalls = true;
2830 #endif // INCLUDE_JNI_CHECK
2831 } else if (is_bad_option(option, args->ignoreUnrecognized,
2832 "check")) {
2833 return JNI_EINVAL;
2834 }
2835 } else if (match_option(option, "vfprintf", &tail)) {
2836 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo);
2837 } else if (match_option(option, "exit", &tail)) {
2838 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo);
2839 } else if (match_option(option, "abort", &tail)) {
|
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|g|G]\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 if a file name valid
1868 // A valid file name only contains "[A-Z][a-z][0-9].-_%[p|t]"
1869 // %p and %t only allowed once.
1870 bool is_filename_valid(const char *file_name) {
1871 const char* p = file_name;
1872 int count_p = 0;
1873 int count_t = 0;
1874 while (*p != '\0') {
1875 if ((*p >= '0' && *p <= '9') ||
1876 (*p >= 'A' && *p <= 'Z') ||
1877 (*p >= 'a' && *p <= 'z') ||
1878 *p == '-' ||
1879 *p == '_' ||
1880 *p == '.') {
1881 p++;
1882 continue;
1883 }
1884 if (*p == '%') {
1885 if(*(p + 1) == 'p') {
1886 p += 2;
1887 count_p ++;
1888 continue;
1889 }
1890 if (*(p + 1) == 't') {
1891 p += 2;
1892 count_t ++;
1893 continue;
1894 }
1895 }
1896 return false;
1897 }
1898 return count_p < 2 && count_t < 2;
1899 }
1900
1901 // Check consistency of GC selection
1902 bool Arguments::check_gc_consistency() {
1903 check_gclog_consistency();
1904 bool status = true;
1905 // Ensure that the user has not selected conflicting sets
1906 // of collectors. [Note: this check is merely a user convenience;
1907 // collectors over-ride each other so that only a non-conflicting
1908 // set is selected; however what the user gets is not what they
1909 // may have expected from the combination they asked for. It's
1910 // better to reduce user confusion by not allowing them to
1911 // select conflicting combinations.
1912 uint i = 0;
1913 if (UseSerialGC) i++;
1914 if (UseConcMarkSweepGC || UseParNewGC) i++;
1915 if (UseParallelGC || UseParallelOldGC) i++;
1916 if (UseG1GC) i++;
1917 if (i > 1) {
1918 jio_fprintf(defaultStream::error_stream(),
1919 "Conflicting collector combinations in option list; "
1920 "please refer to the release notes for the combinations "
2834 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false);
2835 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false);
2836 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) {
2837 return JNI_EINVAL;
2838 }
2839 // -Xdebug
2840 } else if (match_option(option, "-Xdebug", &tail)) {
2841 // note this flag has been used, then ignore
2842 set_xdebug_mode(true);
2843 // -Xnoagent
2844 } else if (match_option(option, "-Xnoagent", &tail)) {
2845 // For compatibility with classic. HotSpot refuses to load the old style agent.dll.
2846 } else if (match_option(option, "-Xboundthreads", &tail)) {
2847 // Bind user level threads to kernel threads (Solaris only)
2848 FLAG_SET_CMDLINE(bool, UseBoundThreads, true);
2849 } else if (match_option(option, "-Xloggc:", &tail)) {
2850 // Redirect GC output to the file. -Xloggc:<filename>
2851 // ostream_init_log(), when called will use this filename
2852 // to initialize a fileStream.
2853 _gc_log_filename = strdup(tail);
2854 if (!is_filename_valid(_gc_log_filename)) {
2855 jio_fprintf(defaultStream::output_stream(),
2856 "Filename can only cantain [A-Z][a-z][0-9]-_.%%[p|t]\n"
2857 "%%p and %%t can only show up once\n" );
2858 return JNI_EINVAL;
2859 }
2860 FLAG_SET_CMDLINE(bool, PrintGC, true);
2861 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true);
2862
2863 // JNI hooks
2864 } else if (match_option(option, "-Xcheck", &tail)) {
2865 if (!strcmp(tail, ":jni")) {
2866 #if !INCLUDE_JNI_CHECK
2867 warning("JNI CHECKING is not supported in this VM");
2868 #else
2869 CheckJNICalls = true;
2870 #endif // INCLUDE_JNI_CHECK
2871 } else if (is_bad_option(option, args->ignoreUnrecognized,
2872 "check")) {
2873 return JNI_EINVAL;
2874 }
2875 } else if (match_option(option, "vfprintf", &tail)) {
2876 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo);
2877 } else if (match_option(option, "exit", &tail)) {
2878 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo);
2879 } else if (match_option(option, "abort", &tail)) {
|