duke@435: /* kevinw@9478: * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@435: * duke@435: * This code is free software; you can redistribute it and/or modify it duke@435: * under the terms of the GNU General Public License version 2 only, as duke@435: * published by the Free Software Foundation. duke@435: * duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@435: * version 2 for more details (a copy is included in the LICENSE file that duke@435: * accompanied this code). duke@435: * duke@435: * You should have received a copy of the GNU General Public License version duke@435: * 2 along with this work; if not, write to the Free Software Foundation, duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@435: * trims@1907: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA trims@1907: * or visit www.oracle.com if you need additional information or have any trims@1907: * questions. duke@435: * duke@435: */ duke@435: stefank@2314: #include "precompiled.hpp" stefank@2314: #include "compiler/compileLog.hpp" brutisso@6904: #include "gc_implementation/shared/gcId.hpp" stefank@2314: #include "oops/oop.inline.hpp" stefank@2314: #include "runtime/arguments.hpp" phh@9904: #include "runtime/mutexLocker.hpp" kevinw@9478: #include "runtime/os.hpp" shade@9906: #include "runtime/vmThread.hpp" stefank@2314: #include "utilities/defaultStream.hpp" stefank@2314: #include "utilities/ostream.hpp" stefank@2314: #include "utilities/top.hpp" stefank@2314: #include "utilities/xmlstream.hpp" stefank@2314: #ifdef TARGET_OS_FAMILY_linux stefank@2314: # include "os_linux.inline.hpp" stefank@2314: #endif stefank@2314: #ifdef TARGET_OS_FAMILY_solaris stefank@2314: # include "os_solaris.inline.hpp" stefank@2314: #endif stefank@2314: #ifdef TARGET_OS_FAMILY_windows stefank@2314: # include "os_windows.inline.hpp" stefank@2314: #endif goetz@6461: #ifdef TARGET_OS_FAMILY_aix goetz@6461: # include "os_aix.inline.hpp" goetz@6461: #endif never@3156: #ifdef TARGET_OS_FAMILY_bsd never@3156: # include "os_bsd.inline.hpp" never@3156: #endif duke@435: duke@435: extern "C" void jio_print(const char* s); // Declarationtion of jvm method duke@435: duke@435: outputStream::outputStream(int width) { duke@435: _width = width; duke@435: _position = 0; duke@435: _newlines = 0; duke@435: _precount = 0; duke@435: _indentation = 0; duke@435: } duke@435: duke@435: outputStream::outputStream(int width, bool has_time_stamps) { duke@435: _width = width; duke@435: _position = 0; duke@435: _newlines = 0; duke@435: _precount = 0; duke@435: _indentation = 0; duke@435: if (has_time_stamps) _stamp.update(); duke@435: } duke@435: duke@435: void outputStream::update_position(const char* s, size_t len) { duke@435: for (size_t i = 0; i < len; i++) { duke@435: char ch = s[i]; duke@435: if (ch == '\n') { duke@435: _newlines += 1; duke@435: _precount += _position + 1; duke@435: _position = 0; duke@435: } else if (ch == '\t') { jrose@535: int tw = 8 - (_position & 7); jrose@535: _position += tw; jrose@535: _precount -= tw-1; // invariant: _precount + _position == total count duke@435: } else { duke@435: _position += 1; duke@435: } duke@435: } duke@435: } duke@435: duke@435: // Execute a vsprintf, using the given buffer if necessary. duke@435: // Return a pointer to the formatted string. duke@435: const char* outputStream::do_vsnprintf(char* buffer, size_t buflen, duke@435: const char* format, va_list ap, duke@435: bool add_cr, duke@435: size_t& result_len) { kevinw@9478: assert(buflen >= 2, "buffer too small"); kevinw@9478: duke@435: const char* result; duke@435: if (add_cr) buflen--; duke@435: if (!strchr(format, '%')) { duke@435: // constant format string duke@435: result = format; duke@435: result_len = strlen(result); duke@435: if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate duke@435: } else if (format[0] == '%' && format[1] == 's' && format[2] == '\0') { duke@435: // trivial copy-through format string duke@435: result = va_arg(ap, const char*); duke@435: result_len = strlen(result); duke@435: if (add_cr && result_len >= buflen) result_len = buflen-1; // truncate kevinw@9478: } else { kevinw@9478: int written = os::vsnprintf(buffer, buflen, format, ap); kevinw@9478: assert(written >= 0, "vsnprintf encoding error"); duke@435: result = buffer; kevinw@9478: if ((size_t)written < buflen) { kevinw@9478: result_len = written; kevinw@9478: } else { kevinw@9478: DEBUG_ONLY(warning("increase O_BUFLEN in ostream.hpp -- output truncated");) kevinw@9478: result_len = buflen - 1; kevinw@9478: } duke@435: } duke@435: if (add_cr) { duke@435: if (result != buffer) { kevinw@9478: memcpy(buffer, result, result_len); duke@435: result = buffer; duke@435: } duke@435: buffer[result_len++] = '\n'; duke@435: buffer[result_len] = 0; duke@435: } duke@435: return result; duke@435: } duke@435: duke@435: void outputStream::print(const char* format, ...) { duke@435: char buffer[O_BUFLEN]; duke@435: va_list ap; duke@435: va_start(ap, format); duke@435: size_t len; duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, false, len); duke@435: write(str, len); duke@435: va_end(ap); duke@435: } duke@435: duke@435: void outputStream::print_cr(const char* format, ...) { duke@435: char buffer[O_BUFLEN]; duke@435: va_list ap; duke@435: va_start(ap, format); duke@435: size_t len; duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, ap, true, len); duke@435: write(str, len); duke@435: va_end(ap); duke@435: } duke@435: duke@435: void outputStream::vprint(const char *format, va_list argptr) { duke@435: char buffer[O_BUFLEN]; duke@435: size_t len; duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, false, len); duke@435: write(str, len); duke@435: } duke@435: duke@435: void outputStream::vprint_cr(const char* format, va_list argptr) { duke@435: char buffer[O_BUFLEN]; duke@435: size_t len; duke@435: const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); duke@435: write(str, len); duke@435: } duke@435: duke@435: void outputStream::fill_to(int col) { jrose@535: int need_fill = col - position(); jrose@535: sp(need_fill); jrose@535: } jrose@535: jrose@535: void outputStream::move_to(int col, int slop, int min_space) { jrose@535: if (position() >= col + slop) jrose@535: cr(); jrose@535: int need_fill = col - position(); jrose@535: if (need_fill < min_space) jrose@535: need_fill = min_space; jrose@535: sp(need_fill); duke@435: } duke@435: duke@435: void outputStream::put(char ch) { duke@435: assert(ch != 0, "please fix call site"); duke@435: char buf[] = { ch, '\0' }; duke@435: write(buf, 1); duke@435: } duke@435: jrose@535: #define SP_USE_TABS false jrose@535: jrose@535: void outputStream::sp(int count) { jrose@535: if (count < 0) return; jrose@535: if (SP_USE_TABS && count >= 8) { jrose@535: int target = position() + count; jrose@535: while (count >= 8) { jrose@535: this->write("\t", 1); jrose@535: count -= 8; jrose@535: } jrose@535: count = target - position(); jrose@535: } jrose@535: while (count > 0) { jrose@535: int nw = (count > 8) ? 8 : count; jrose@535: this->write(" ", nw); jrose@535: count -= nw; jrose@535: } duke@435: } duke@435: duke@435: void outputStream::cr() { duke@435: this->write("\n", 1); duke@435: } duke@435: duke@435: void outputStream::stamp() { duke@435: if (! _stamp.is_updated()) { duke@435: _stamp.update(); // start at 0 on first call to stamp() duke@435: } duke@435: duke@435: // outputStream::stamp() may get called by ostream_abort(), use snprintf duke@435: // to avoid allocating large stack buffer in print(). duke@435: char buf[40]; duke@435: jio_snprintf(buf, sizeof(buf), "%.3f", _stamp.seconds()); duke@435: print_raw(buf); duke@435: } duke@435: ysr@777: void outputStream::stamp(bool guard, ysr@777: const char* prefix, ysr@777: const char* suffix) { ysr@777: if (!guard) { ysr@777: return; ysr@777: } ysr@777: print_raw(prefix); ysr@777: stamp(); ysr@777: print_raw(suffix); ysr@777: } ysr@777: duke@435: void outputStream::date_stamp(bool guard, duke@435: const char* prefix, duke@435: const char* suffix) { duke@435: if (!guard) { duke@435: return; duke@435: } duke@435: print_raw(prefix); duke@435: static const char error_time[] = "yyyy-mm-ddThh:mm:ss.mmm+zzzz"; duke@435: static const int buffer_length = 32; duke@435: char buffer[buffer_length]; duke@435: const char* iso8601_result = os::iso8601_time(buffer, buffer_length); duke@435: if (iso8601_result != NULL) { duke@435: print_raw(buffer); duke@435: } else { duke@435: print_raw(error_time); duke@435: } duke@435: print_raw(suffix); duke@435: return; duke@435: } duke@435: brutisso@6904: void outputStream::gclog_stamp(const GCId& gc_id) { brutisso@6904: date_stamp(PrintGCDateStamps); brutisso@6904: stamp(PrintGCTimeStamps); brutisso@6904: if (PrintGCID) { brutisso@6904: print("#%u: ", gc_id.id()); brutisso@6904: } brutisso@6904: } brutisso@6904: kamg@3992: outputStream& outputStream::indent() { duke@435: while (_position < _indentation) sp(); kamg@3992: return *this; duke@435: } duke@435: duke@435: void outputStream::print_jlong(jlong value) { hseigel@4465: print(JLONG_FORMAT, value); duke@435: } duke@435: duke@435: void outputStream::print_julong(julong value) { hseigel@4465: print(JULONG_FORMAT, value); duke@435: } duke@435: kamg@3992: /** kamg@3992: * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: kamg@3992: * : 8 * kamg@3992: * example: kamg@3992: * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ kamg@3992: * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... kamg@3992: * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] kamg@3992: * ... kamg@3992: * kamg@3992: * indent is applied to each line. Ends with a CR. kamg@3992: */ kamg@3992: void outputStream::print_data(void* data, size_t len, bool with_ascii) { kamg@3992: size_t limit = (len + 16) / 16 * 16; kamg@3992: for (size_t i = 0; i < limit; ++i) { kamg@3992: if (i % 16 == 0) { kevinw@9327: indent().print(SIZE_FORMAT_HEX_W(07) ":", i); kamg@3992: } kamg@3992: if (i % 2 == 0) { kamg@3992: print(" "); kamg@3992: } kamg@3992: if (i < len) { kamg@3992: print("%02x", ((unsigned char*)data)[i]); kamg@3992: } else { kamg@3992: print(" "); kamg@3992: } kamg@3992: if ((i + 1) % 16 == 0) { kamg@3992: if (with_ascii) { kamg@3992: print(" "); kamg@3992: for (size_t j = 0; j < 16; ++j) { kamg@3992: size_t idx = i + j - 15; kamg@3992: if (idx < len) { kamg@3992: char c = ((char*)data)[idx]; kamg@3992: print("%c", c >= 32 && c <= 126 ? c : '.'); kamg@3992: } kamg@3992: } kamg@3992: } drchase@6680: cr(); kamg@3992: } kamg@3992: } kamg@3992: } kamg@3992: duke@435: stringStream::stringStream(size_t initial_size) : outputStream() { duke@435: buffer_length = initial_size; duke@435: buffer = NEW_RESOURCE_ARRAY(char, buffer_length); duke@435: buffer_pos = 0; duke@435: buffer_fixed = false; fparain@5409: DEBUG_ONLY(rm = Thread::current()->current_resource_mark();) duke@435: } duke@435: duke@435: // useful for output to fixed chunks of memory, such as performance counters duke@435: stringStream::stringStream(char* fixed_buffer, size_t fixed_buffer_size) : outputStream() { duke@435: buffer_length = fixed_buffer_size; duke@435: buffer = fixed_buffer; duke@435: buffer_pos = 0; duke@435: buffer_fixed = true; duke@435: } duke@435: duke@435: void stringStream::write(const char* s, size_t len) { duke@435: size_t write_len = len; // number of non-null bytes to write duke@435: size_t end = buffer_pos + len + 1; // position after write and final '\0' duke@435: if (end > buffer_length) { duke@435: if (buffer_fixed) { duke@435: // if buffer cannot resize, silently truncate duke@435: end = buffer_length; duke@435: write_len = end - buffer_pos - 1; // leave room for the final '\0' duke@435: } else { duke@435: // For small overruns, double the buffer. For larger ones, duke@435: // increase to the requested size. duke@435: if (end < buffer_length * 2) { duke@435: end = buffer_length * 2; duke@435: } duke@435: char* oldbuf = buffer; fparain@5409: assert(rm == NULL || Thread::current()->current_resource_mark() == rm, fparain@5409: "stringStream is re-allocated with a different ResourceMark"); duke@435: buffer = NEW_RESOURCE_ARRAY(char, end); duke@435: strncpy(buffer, oldbuf, buffer_pos); duke@435: buffer_length = end; duke@435: } duke@435: } duke@435: // invariant: buffer is always null-terminated duke@435: guarantee(buffer_pos + write_len + 1 <= buffer_length, "stringStream oob"); duke@435: buffer[buffer_pos + write_len] = 0; duke@435: strncpy(buffer + buffer_pos, s, write_len); duke@435: buffer_pos += write_len; duke@435: duke@435: // Note that the following does not depend on write_len. duke@435: // This means that position and count get updated duke@435: // even when overflow occurs. duke@435: update_position(s, len); duke@435: } duke@435: duke@435: char* stringStream::as_string() { minqi@5683: char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos + 1); duke@435: strncpy(copy, buffer, buffer_pos); duke@435: copy[buffer_pos] = 0; // terminating null duke@435: return copy; duke@435: } duke@435: duke@435: stringStream::~stringStream() {} duke@435: duke@435: xmlStream* xtty; duke@435: outputStream* tty; duke@435: outputStream* gclog_or_tty; iklam@7089: CDS_ONLY(fileStream* classlist_file;) // Only dump the classes that can be stored into the CDS archive duke@435: extern Mutex* tty_lock; duke@435: minqi@5683: #define EXTRACHARLEN 32 minqi@5683: #define CURRENTAPPX ".current" minqi@5683: // convert YYYY-MM-DD HH:MM:SS to YYYY-MM-DD_HH-MM-SS minqi@5683: char* get_datetime_string(char *buf, size_t len) { minqi@5683: os::local_time_string(buf, len); minqi@5683: int i = (int)strlen(buf); minqi@5683: while (i-- >= 0) { minqi@5683: if (buf[i] == ' ') buf[i] = '_'; minqi@5683: else if (buf[i] == ':') buf[i] = '-'; minqi@5683: } minqi@5683: return buf; minqi@5683: } minqi@5683: minqi@5683: static const char* make_log_name_internal(const char* log_name, const char* force_directory, minqi@5683: int pid, const char* tms) { minqi@5683: const char* basename = log_name; minqi@5683: char file_sep = os::file_separator()[0]; minqi@5683: const char* cp; minqi@5683: char pid_text[32]; minqi@5683: minqi@5683: for (cp = log_name; *cp != '\0'; cp++) { minqi@5683: if (*cp == '/' || *cp == file_sep) { minqi@5683: basename = cp + 1; minqi@5683: } minqi@5683: } minqi@5683: const char* nametail = log_name; minqi@5683: // Compute buffer length minqi@5683: size_t buffer_length; minqi@5683: if (force_directory != NULL) { minqi@5683: buffer_length = strlen(force_directory) + strlen(os::file_separator()) + minqi@5683: strlen(basename) + 1; minqi@5683: } else { minqi@5683: buffer_length = strlen(log_name) + 1; minqi@5683: } minqi@5683: minqi@5683: const char* pts = strstr(basename, "%p"); minqi@5683: int pid_pos = (pts == NULL) ? -1 : (pts - nametail); minqi@5683: minqi@5683: if (pid_pos >= 0) { minqi@5683: jio_snprintf(pid_text, sizeof(pid_text), "pid%u", pid); minqi@5683: buffer_length += strlen(pid_text); minqi@5683: } minqi@5683: minqi@5683: pts = strstr(basename, "%t"); minqi@5683: int tms_pos = (pts == NULL) ? -1 : (pts - nametail); minqi@5683: if (tms_pos >= 0) { minqi@5683: buffer_length += strlen(tms); minqi@5683: } minqi@5683: brutisso@7448: // File name is too long. brutisso@7448: if (buffer_length > JVM_MAXPATHLEN) { brutisso@7448: return NULL; brutisso@7448: } brutisso@7448: minqi@5683: // Create big enough buffer. minqi@5683: char *buf = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); minqi@5683: minqi@5683: strcpy(buf, ""); minqi@5683: if (force_directory != NULL) { minqi@5683: strcat(buf, force_directory); minqi@5683: strcat(buf, os::file_separator()); minqi@5683: nametail = basename; // completely skip directory prefix minqi@5683: } minqi@5683: minqi@5683: // who is first, %p or %t? minqi@5683: int first = -1, second = -1; minqi@5683: const char *p1st = NULL; minqi@5683: const char *p2nd = NULL; minqi@5683: minqi@5683: if (pid_pos >= 0 && tms_pos >= 0) { minqi@5683: // contains both %p and %t minqi@5683: if (pid_pos < tms_pos) { minqi@5683: // case foo%pbar%tmonkey.log minqi@5683: first = pid_pos; minqi@5683: p1st = pid_text; minqi@5683: second = tms_pos; minqi@5683: p2nd = tms; minqi@5683: } else { minqi@5683: // case foo%tbar%pmonkey.log minqi@5683: first = tms_pos; minqi@5683: p1st = tms; minqi@5683: second = pid_pos; minqi@5683: p2nd = pid_text; minqi@5683: } minqi@5683: } else if (pid_pos >= 0) { minqi@5683: // contains %p only minqi@5683: first = pid_pos; minqi@5683: p1st = pid_text; minqi@5683: } else if (tms_pos >= 0) { minqi@5683: // contains %t only minqi@5683: first = tms_pos; minqi@5683: p1st = tms; minqi@5683: } minqi@5683: minqi@5683: int buf_pos = (int)strlen(buf); minqi@5683: const char* tail = nametail; minqi@5683: minqi@5683: if (first >= 0) { minqi@5683: tail = nametail + first + 2; minqi@5683: strncpy(&buf[buf_pos], nametail, first); minqi@5683: strcpy(&buf[buf_pos + first], p1st); minqi@5683: buf_pos = (int)strlen(buf); minqi@5683: if (second >= 0) { minqi@5683: strncpy(&buf[buf_pos], tail, second - first - 2); minqi@5683: strcpy(&buf[buf_pos + second - first - 2], p2nd); minqi@5683: tail = nametail + second + 2; minqi@5683: } minqi@5683: } minqi@5683: strcat(buf, tail); // append rest of name, or all of name minqi@5683: return buf; minqi@5683: } minqi@5683: iklam@7089: // log_name comes from -XX:LogFile=log_name, -Xloggc:log_name or iklam@7089: // -XX:DumpLoadedClassList= vlivanov@5903: // in log_name, %p => pid1234 and minqi@5683: // %t => YYYY-MM-DD_HH-MM-SS minqi@5683: static const char* make_log_name(const char* log_name, const char* force_directory) { minqi@5683: char timestr[32]; minqi@5683: get_datetime_string(timestr, sizeof(timestr)); minqi@5683: return make_log_name_internal(log_name, force_directory, os::current_process_id(), minqi@5683: timestr); minqi@5683: } minqi@5683: minqi@5683: #ifndef PRODUCT minqi@5683: void test_loggc_filename() { minqi@5683: int pid; minqi@5683: char tms[32]; brutisso@7448: char i_result[JVM_MAXPATHLEN]; minqi@5683: const char* o_result; minqi@5683: get_datetime_string(tms, sizeof(tms)); minqi@5683: pid = os::current_process_id(); minqi@5683: minqi@5683: // test.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "test.log", tms); minqi@5683: o_result = make_log_name_internal("test.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); minqi@5683: minqi@5683: // test-%t-%p.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%s-pid%u.log", tms, pid); minqi@5683: o_result = make_log_name_internal("test-%t-%p.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t-%%p.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); minqi@5683: minqi@5683: // test-%t%p.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "test-%spid%u.log", tms, pid); minqi@5683: o_result = make_log_name_internal("test-%t%p.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"test-%%t%%p.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); minqi@5683: minqi@5683: // %p%t.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u%s.log", pid, tms); minqi@5683: o_result = make_log_name_internal("%p%t.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p%%t.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); minqi@5683: minqi@5683: // %p-test.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "pid%u-test.log", pid); minqi@5683: o_result = make_log_name_internal("%p-test.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%p-test.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); minqi@5683: minqi@5683: // %t.log brutisso@7448: jio_snprintf(i_result, JVM_MAXPATHLEN, "%s.log", tms); minqi@5683: o_result = make_log_name_internal("%t.log", NULL, pid, tms); minqi@5683: assert(strcmp(i_result, o_result) == 0, "failed on testing make_log_name(\"%%t.log\", NULL)"); minqi@5683: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); brutisso@7448: brutisso@7448: { brutisso@7448: // longest filename brutisso@7448: char longest_name[JVM_MAXPATHLEN]; brutisso@7448: memset(longest_name, 'a', sizeof(longest_name)); brutisso@7448: longest_name[JVM_MAXPATHLEN - 1] = '\0'; brutisso@7448: o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); brutisso@7448: assert(strcmp(longest_name, o_result) == 0, err_msg("longest name does not match. expected '%s' but got '%s'", longest_name, o_result)); brutisso@7448: FREE_C_HEAP_ARRAY(char, o_result, mtInternal); brutisso@7448: } brutisso@7448: brutisso@7448: { brutisso@7448: // too long file name brutisso@7448: char too_long_name[JVM_MAXPATHLEN + 100]; brutisso@7448: int too_long_length = sizeof(too_long_name); brutisso@7448: memset(too_long_name, 'a', too_long_length); brutisso@7448: too_long_name[too_long_length - 1] = '\0'; brutisso@7448: o_result = make_log_name_internal((const char*)&too_long_name, NULL, pid, tms); brutisso@7448: assert(o_result == NULL, err_msg("Too long file name should return NULL, but got '%s'", o_result)); brutisso@7448: } brutisso@7448: brutisso@7448: { brutisso@7448: // too long with timestamp brutisso@7448: char longest_name[JVM_MAXPATHLEN]; brutisso@7448: memset(longest_name, 'a', JVM_MAXPATHLEN); brutisso@7448: longest_name[JVM_MAXPATHLEN - 3] = '%'; brutisso@7448: longest_name[JVM_MAXPATHLEN - 2] = 't'; brutisso@7448: longest_name[JVM_MAXPATHLEN - 1] = '\0'; brutisso@7448: o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); brutisso@7448: assert(o_result == NULL, err_msg("Too long file name after timestamp expansion should return NULL, but got '%s'", o_result)); brutisso@7448: } brutisso@7448: brutisso@7448: { brutisso@7448: // too long with pid brutisso@7448: char longest_name[JVM_MAXPATHLEN]; brutisso@7448: memset(longest_name, 'a', JVM_MAXPATHLEN); brutisso@7448: longest_name[JVM_MAXPATHLEN - 3] = '%'; brutisso@7448: longest_name[JVM_MAXPATHLEN - 2] = 'p'; brutisso@7448: longest_name[JVM_MAXPATHLEN - 1] = '\0'; brutisso@7448: o_result = make_log_name_internal((const char*)&longest_name, NULL, pid, tms); brutisso@7448: assert(o_result == NULL, err_msg("Too long file name after pid expansion should return NULL, but got '%s'", o_result)); brutisso@7448: } minqi@5683: } kevinw@9478: kevinw@9478: ////////////////////////////////////////////////////////////////////////////// kevinw@9478: // Test os::vsnprintf and friends. kevinw@9478: kevinw@9478: void check_snprintf_result(int expected, size_t limit, int actual, bool expect_count) { kevinw@9478: if (expect_count || ((size_t)expected < limit)) { kevinw@9478: assert(expected == actual, "snprintf result not expected value"); kevinw@9478: } else { kevinw@9478: // Make this check more permissive for jdk8u, don't assert that actual == 0. kevinw@9478: // e.g. jio_vsnprintf_wrapper and jio_snprintf return -1 when expected >= limit kevinw@9478: if (expected >= (int) limit) { kevinw@9478: assert(actual == -1, "snprintf result should be -1 for expected >= limit"); kevinw@9478: } else { kevinw@9478: assert(actual > 0, "snprintf result should be >0 for expected < limit"); kevinw@9478: } kevinw@9478: } kevinw@9478: } kevinw@9478: kevinw@9478: // PrintFn is expected to be int (*)(char*, size_t, const char*, ...). kevinw@9478: // But jio_snprintf is a C-linkage function with that signature, which kevinw@9478: // has a different type on some platforms (like Solaris). kevinw@9478: template kevinw@9478: void test_snprintf(PrintFn pf, bool expect_count) { kevinw@9478: const char expected[] = "abcdefghijklmnopqrstuvwxyz"; kevinw@9478: const int expected_len = sizeof(expected) - 1; kevinw@9478: const size_t padding_size = 10; kevinw@9478: char buffer[2 * (sizeof(expected) + padding_size)]; kevinw@9478: char check_buffer[sizeof(buffer)]; kevinw@9478: const char check_char = '1'; // Something not in expected. kevinw@9478: memset(check_buffer, check_char, sizeof(check_buffer)); kevinw@9478: const size_t sizes_to_test[] = { kevinw@9478: sizeof(buffer) - padding_size, // Fits, with plenty of space to spare. kevinw@9478: sizeof(buffer)/2, // Fits, with space to spare. kevinw@9478: sizeof(buffer)/4, // Doesn't fit. kevinw@9478: sizeof(expected) + padding_size + 1, // Fits, with a little room to spare kevinw@9478: sizeof(expected) + padding_size, // Fits exactly. kevinw@9478: sizeof(expected) + padding_size - 1, // Doesn't quite fit. kevinw@9478: 2, // One char + terminating NUL. kevinw@9478: 1, // Only space for terminating NUL. kevinw@9478: 0 }; // No space at all. kevinw@9478: for (unsigned i = 0; i < ARRAY_SIZE(sizes_to_test); ++i) { kevinw@9478: memset(buffer, check_char, sizeof(buffer)); // To catch stray writes. kevinw@9478: size_t test_size = sizes_to_test[i]; kevinw@9478: ResourceMark rm; kevinw@9478: stringStream s; kevinw@9478: s.print("test_size: " SIZE_FORMAT, test_size); kevinw@9478: size_t prefix_size = padding_size; kevinw@9478: guarantee(test_size <= (sizeof(buffer) - prefix_size), "invariant"); kevinw@9478: size_t write_size = MIN2(sizeof(expected), test_size); kevinw@9478: size_t suffix_size = sizeof(buffer) - prefix_size - write_size; kevinw@9478: char* write_start = buffer + prefix_size; kevinw@9478: char* write_end = write_start + write_size; kevinw@9478: kevinw@9478: int result = pf(write_start, test_size, "%s", expected); kevinw@9478: kevinw@9478: check_snprintf_result(expected_len, test_size, result, expect_count); kevinw@9478: kevinw@9478: // Verify expected output. kevinw@9478: if (test_size > 0) { kevinw@9478: assert(0 == strncmp(write_start, expected, write_size - 1), "strncmp failure"); kevinw@9478: // Verify terminating NUL of output. kevinw@9478: assert('\0' == write_start[write_size - 1], "null terminator failure"); kevinw@9478: } else { kevinw@9478: guarantee(test_size == 0, "invariant"); kevinw@9478: guarantee(write_size == 0, "invariant"); kevinw@9478: guarantee(prefix_size + suffix_size == sizeof(buffer), "invariant"); kevinw@9478: guarantee(write_start == write_end, "invariant"); kevinw@9478: } kevinw@9478: kevinw@9478: // Verify no scribbling on prefix or suffix. kevinw@9478: assert(0 == strncmp(buffer, check_buffer, prefix_size), "prefix scribble"); kevinw@9478: assert(0 == strncmp(write_end, check_buffer, suffix_size), "suffix scribble"); kevinw@9478: } kevinw@9478: kevinw@9478: // Special case of 0-length buffer with empty (except for terminator) output. kevinw@9478: check_snprintf_result(0, 0, pf(NULL, 0, "%s", ""), expect_count); kevinw@9478: check_snprintf_result(0, 0, pf(NULL, 0, ""), expect_count); kevinw@9478: } kevinw@9478: kevinw@9478: // This is probably equivalent to os::snprintf, but we're being kevinw@9478: // explicit about what we're testing here. kevinw@9478: static int vsnprintf_wrapper(char* buf, size_t len, const char* fmt, ...) { kevinw@9478: va_list args; kevinw@9478: va_start(args, fmt); kevinw@9478: int result = os::vsnprintf(buf, len, fmt, args); kevinw@9478: va_end(args); kevinw@9478: return result; kevinw@9478: } kevinw@9478: kevinw@9478: // These are declared in jvm.h; test here, with related functions. kevinw@9478: extern "C" { kevinw@9478: int jio_vsnprintf(char*, size_t, const char*, va_list); kevinw@9478: int jio_snprintf(char*, size_t, const char*, ...); kevinw@9478: } kevinw@9478: kevinw@9478: // This is probably equivalent to jio_snprintf, but we're being kevinw@9478: // explicit about what we're testing here. kevinw@9478: static int jio_vsnprintf_wrapper(char* buf, size_t len, const char* fmt, ...) { kevinw@9478: va_list args; kevinw@9478: va_start(args, fmt); kevinw@9478: int result = jio_vsnprintf(buf, len, fmt, args); kevinw@9478: va_end(args); kevinw@9478: return result; kevinw@9478: } kevinw@9478: kevinw@9478: void test_snprintf() { kevinw@9478: test_snprintf(vsnprintf_wrapper, true); kevinw@9478: test_snprintf(os::snprintf, true); kevinw@9478: test_snprintf(jio_vsnprintf_wrapper, false); // jio_vsnprintf returns -1 on error including exceeding buffer size kevinw@9478: test_snprintf(jio_snprintf, false); // jio_snprintf calls jio_vsnprintf kevinw@9478: } minqi@5683: #endif // PRODUCT minqi@5683: duke@435: fileStream::fileStream(const char* file_name) { duke@435: _file = fopen(file_name, "w"); minqi@5683: if (_file != NULL) { minqi@5683: _need_close = true; minqi@5683: } else { minqi@5683: warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); minqi@5683: _need_close = false; minqi@5683: } duke@435: } duke@435: kamg@2515: fileStream::fileStream(const char* file_name, const char* opentype) { kamg@2515: _file = fopen(file_name, opentype); minqi@5683: if (_file != NULL) { minqi@5683: _need_close = true; minqi@5683: } else { minqi@5683: warning("Cannot open file %s due to %s\n", file_name, strerror(errno)); minqi@5683: _need_close = false; minqi@5683: } kamg@2515: } kamg@2515: duke@435: void fileStream::write(const char* s, size_t len) { xlu@948: if (_file != NULL) { xlu@948: // Make an unused local variable to avoid warning from gcc 4.x compiler. xlu@948: size_t count = fwrite(s, 1, len, _file); xlu@948: } duke@435: update_position(s, len); duke@435: } duke@435: kamg@2515: long fileStream::fileSize() { kamg@2515: long size = -1; kamg@2515: if (_file != NULL) { kamg@2515: long pos = ::ftell(_file); kamg@2515: if (::fseek(_file, 0, SEEK_END) == 0) { kamg@2515: size = ::ftell(_file); kamg@2515: } kamg@2515: ::fseek(_file, pos, SEEK_SET); kamg@2515: } kamg@2515: return size; kamg@2515: } kamg@2515: kamg@2515: char* fileStream::readln(char *data, int count ) { kamg@2515: char * ret = ::fgets(data, count, _file); kamg@2515: //Get rid of annoying \n char kamg@2515: data[::strlen(data)-1] = '\0'; kamg@2515: return ret; kamg@2515: } kamg@2515: duke@435: fileStream::~fileStream() { duke@435: if (_file != NULL) { duke@435: if (_need_close) fclose(_file); minqi@2964: _file = NULL; duke@435: } duke@435: } duke@435: duke@435: void fileStream::flush() { duke@435: fflush(_file); duke@435: } duke@435: duke@435: fdStream::fdStream(const char* file_name) { duke@435: _fd = open(file_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); duke@435: _need_close = true; duke@435: } duke@435: duke@435: fdStream::~fdStream() { duke@435: if (_fd != -1) { duke@435: if (_need_close) close(_fd); duke@435: _fd = -1; duke@435: } duke@435: } duke@435: duke@435: void fdStream::write(const char* s, size_t len) { xlu@948: if (_fd != -1) { xlu@948: // Make an unused local variable to avoid warning from gcc 4.x compiler. xlu@948: size_t count = ::write(_fd, s, (int)len); xlu@948: } duke@435: update_position(s, len); duke@435: } duke@435: minqi@5683: // dump vm version, os version, platform info, build id, minqi@5683: // memory usage and command line flags into header minqi@5683: void gcLogFileStream::dump_loggc_header() { minqi@5683: if (is_open()) { drchase@6680: print_cr("%s", Abstract_VM_Version::internal_vm_info_string()); minqi@5683: os::print_memory_info(this); minqi@5683: print("CommandLine flags: "); minqi@5683: CommandLineFlags::printSetFlags(this); minqi@5683: } minqi@5683: } minqi@5683: minqi@5683: gcLogFileStream::~gcLogFileStream() { minqi@2964: if (_file != NULL) { minqi@2964: if (_need_close) fclose(_file); minqi@5683: _file = NULL; minqi@5683: } minqi@5683: if (_file_name != NULL) { zgu@3900: FREE_C_HEAP_ARRAY(char, _file_name, mtInternal); minqi@2964: _file_name = NULL; minqi@2964: } phh@9904: phh@9904: delete _file_lock; minqi@2964: } minqi@2964: phh@9904: gcLogFileStream::gcLogFileStream(const char* file_name) : _file_lock(NULL) { minqi@2964: _cur_file_num = 0; jwilhelm@4647: _bytes_written = 0L; minqi@5683: _file_name = make_log_name(file_name, NULL); minqi@5683: brutisso@7448: if (_file_name == NULL) { brutisso@7448: warning("Cannot open file %s: file name is too long.\n", file_name); brutisso@7448: _need_close = false; brutisso@7448: UseGCLogFileRotation = false; brutisso@7448: return; brutisso@7448: } brutisso@7448: minqi@5683: // gc log file rotation minqi@5683: if (UseGCLogFileRotation && NumberOfGCLogFiles > 1) { brutisso@7448: char tempbuf[JVM_MAXPATHLEN]; minqi@5683: jio_snprintf(tempbuf, sizeof(tempbuf), "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); minqi@5683: _file = fopen(tempbuf, "w"); minqi@5683: } else { minqi@5683: _file = fopen(_file_name, "w"); minqi@5683: } minqi@5683: if (_file != NULL) { minqi@5683: _need_close = true; minqi@5683: dump_loggc_header(); phh@9904: phh@9904: if (UseGCLogFileRotation) { phh@9904: _file_lock = new Mutex(Mutex::leaf, "GCLogFile"); phh@9904: } minqi@5683: } else { minqi@5683: warning("Cannot open file %s due to %s\n", _file_name, strerror(errno)); minqi@5683: _need_close = false; minqi@5683: } minqi@2964: } minqi@2964: minqi@5683: void gcLogFileStream::write(const char* s, size_t len) { jwilhelm@4647: if (_file != NULL) { phh@9904: // we can't use Thread::current() here because thread may be NULL phh@9904: // in early stage(ostream_init_log) phh@9904: Thread* thread = ThreadLocalStorage::thread(); phh@9904: phh@9904: // avoid the mutex in the following cases phh@9904: // 1) ThreadLocalStorage::thread() hasn't been initialized phh@9904: // 2) _file_lock is not in use. phh@9904: // 3) current() is VMThread and its reentry flag is set phh@9904: if (!thread || !_file_lock || (thread->is_VM_thread() phh@9904: && ((VMThread* )thread)->is_gclog_reentry())) { phh@9904: size_t count = fwrite(s, 1, len, _file); phh@9904: _bytes_written += count; phh@9904: } phh@9904: else { phh@9904: MutexLockerEx ml(_file_lock, Mutex::_no_safepoint_check_flag); phh@9904: size_t count = fwrite(s, 1, len, _file); phh@9904: _bytes_written += count; phh@9904: } minqi@2964: } minqi@2964: update_position(s, len); minqi@2964: } minqi@2964: phh@9904: // rotate_log must be called from VMThread at a safepoint. In case need change parameters minqi@2964: // for gc log rotation from thread other than VMThread, a sub type of VM_Operation minqi@2964: // should be created and be submitted to VMThread's operation queue. DO NOT call this phh@9904: // function directly. It is safe to rotate log through VMThread because phh@9904: // no mutator threads run concurrently with the VMThread, and GC threads that run phh@9904: // concurrently with the VMThread are synchronized in write and rotate_log via _file_lock. phh@9904: // rotate_log can write log entries, so write supports reentry for it. minqi@6535: void gcLogFileStream::rotate_log(bool force, outputStream* out) { phh@9904: #ifdef ASSERT phh@9904: Thread *thread = Thread::current(); phh@9904: assert(thread == NULL || phh@9904: (thread->is_VM_thread() && SafepointSynchronize::is_at_safepoint()), phh@9904: "Must be VMThread at safepoint"); phh@9904: #endif phh@9904: phh@9904: VMThread* vmthread = VMThread::vm_thread(); phh@9904: { phh@9904: // nop if _file_lock is NULL. phh@9904: MutexLockerEx ml(_file_lock, Mutex::_no_safepoint_check_flag); phh@9904: vmthread->set_gclog_reentry(true); phh@9904: rotate_log_impl(force, out); phh@9904: vmthread->set_gclog_reentry(false); phh@9904: } phh@9904: } phh@9904: phh@9904: void gcLogFileStream::rotate_log_impl(bool force, outputStream* out) { brutisso@7448: char time_msg[O_BUFLEN]; minqi@5683: char time_str[EXTRACHARLEN]; brutisso@7448: char current_file_name[JVM_MAXPATHLEN]; brutisso@7448: char renamed_file_name[JVM_MAXPATHLEN]; minqi@5683: minqi@6535: if (!should_rotate(force)) { jwilhelm@4647: return; jwilhelm@4647: } jwilhelm@4647: minqi@2964: if (NumberOfGCLogFiles == 1) { minqi@2964: // rotate in same file minqi@2964: rewind(); jwilhelm@4647: _bytes_written = 0L; minqi@5683: jio_snprintf(time_msg, sizeof(time_msg), "File %s rotated at %s\n", minqi@5683: _file_name, os::local_time_string((char *)time_str, sizeof(time_str))); minqi@5683: write(time_msg, strlen(time_msg)); minqi@6535: minqi@6535: if (out != NULL) { drchase@6680: out->print("%s", time_msg); minqi@6535: } minqi@6535: minqi@5683: dump_loggc_header(); minqi@2964: return; minqi@2964: } minqi@2964: minqi@5683: #if defined(_WINDOWS) minqi@5683: #ifndef F_OK minqi@5683: #define F_OK 0 minqi@5683: #endif minqi@5683: #endif // _WINDOWS minqi@5683: minqi@5683: // rotate file in names extended_filename.0, extended_filename.1, ..., minqi@5683: // extended_filename.. Current rotation file name will minqi@5683: // have a form of extended_filename..current where i is the current rotation minqi@5683: // file number. After it reaches max file size, the file will be saved and renamed minqi@5683: // with .current removed from its tail. minqi@2964: if (_file != NULL) { brutisso@7448: jio_snprintf(renamed_file_name, JVM_MAXPATHLEN, "%s.%d", minqi@5683: _file_name, _cur_file_num); brutisso@7448: int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN, brutisso@7448: "%s.%d" CURRENTAPPX, _file_name, _cur_file_num); brutisso@7448: if (result >= JVM_MAXPATHLEN) { brutisso@7448: warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name); brutisso@7448: return; brutisso@7448: } minqi@6535: minqi@6535: const char* msg = force ? "GC log rotation request has been received." minqi@6535: : "GC log file has reached the maximum size."; minqi@6535: jio_snprintf(time_msg, sizeof(time_msg), "%s %s Saved as %s\n", minqi@6535: os::local_time_string((char *)time_str, sizeof(time_str)), minqi@6535: msg, renamed_file_name); minqi@5683: write(time_msg, strlen(time_msg)); minqi@5683: minqi@6535: if (out != NULL) { drchase@6680: out->print("%s", time_msg); minqi@6535: } minqi@6535: minqi@2964: fclose(_file); minqi@2964: _file = NULL; minqi@5683: minqi@5683: bool can_rename = true; minqi@5683: if (access(current_file_name, F_OK) != 0) { minqi@5683: // current file does not exist? minqi@5683: warning("No source file exists, cannot rename\n"); minqi@5683: can_rename = false; minqi@5683: } minqi@5683: if (can_rename) { minqi@5683: if (access(renamed_file_name, F_OK) == 0) { minqi@5683: if (remove(renamed_file_name) != 0) { minqi@5683: warning("Could not delete existing file %s\n", renamed_file_name); minqi@5683: can_rename = false; minqi@5683: } minqi@5683: } else { minqi@5683: // file does not exist, ok to rename minqi@5683: } minqi@5683: } minqi@5683: if (can_rename && rename(current_file_name, renamed_file_name) != 0) { minqi@5683: warning("Could not rename %s to %s\n", _file_name, renamed_file_name); minqi@5683: } minqi@2964: } minqi@5683: minqi@5683: _cur_file_num++; minqi@5683: if (_cur_file_num > NumberOfGCLogFiles - 1) _cur_file_num = 0; brutisso@7448: int result = jio_snprintf(current_file_name, JVM_MAXPATHLEN, "%s.%d" CURRENTAPPX, minqi@5683: _file_name, _cur_file_num); brutisso@7448: if (result >= JVM_MAXPATHLEN) { brutisso@7448: warning("Cannot create new log file name: %s: file name is too long.\n", current_file_name); brutisso@7448: return; brutisso@7448: } brutisso@7448: minqi@5683: _file = fopen(current_file_name, "w"); minqi@5683: minqi@2964: if (_file != NULL) { jwilhelm@4647: _bytes_written = 0L; minqi@2964: _need_close = true; minqi@5683: // reuse current_file_name for time_msg brutisso@7448: jio_snprintf(current_file_name, JVM_MAXPATHLEN, minqi@5683: "%s.%d", _file_name, _cur_file_num); minqi@5683: jio_snprintf(time_msg, sizeof(time_msg), "%s GC log file created %s\n", brutisso@7448: os::local_time_string((char *)time_str, sizeof(time_str)), current_file_name); minqi@5683: write(time_msg, strlen(time_msg)); minqi@6535: minqi@6535: if (out != NULL) { drchase@6680: out->print("%s", time_msg); minqi@6535: } minqi@6535: minqi@5683: dump_loggc_header(); minqi@5683: // remove the existing file minqi@5683: if (access(current_file_name, F_OK) == 0) { minqi@5683: if (remove(current_file_name) != 0) { minqi@5683: warning("Could not delete existing file %s\n", current_file_name); minqi@5683: } minqi@5683: } minqi@2964: } else { minqi@5683: warning("failed to open rotation log file %s due to %s\n" minqi@5683: "Turned off GC log file rotation\n", minqi@2964: _file_name, strerror(errno)); minqi@2964: _need_close = false; minqi@5683: FLAG_SET_DEFAULT(UseGCLogFileRotation, false); minqi@2964: } minqi@2964: } minqi@2964: duke@435: defaultStream* defaultStream::instance = NULL; duke@435: int defaultStream::_output_fd = 1; duke@435: int defaultStream::_error_fd = 2; duke@435: FILE* defaultStream::_output_stream = stdout; duke@435: FILE* defaultStream::_error_stream = stderr; duke@435: duke@435: #define LOG_MAJOR_VERSION 160 duke@435: #define LOG_MINOR_VERSION 1 duke@435: duke@435: void defaultStream::init() { duke@435: _inited = true; duke@435: if (LogVMOutput || LogCompilation) { duke@435: init_log(); duke@435: } duke@435: } duke@435: duke@435: bool defaultStream::has_log_file() { duke@435: // lazily create log file (at startup, LogVMOutput is false even duke@435: // if +LogVMOutput is used, because the flags haven't been parsed yet) duke@435: // For safer printing during fatal error handling, do not init logfile duke@435: // if a VM error has been reported. duke@435: if (!_inited && !is_error_reported()) init(); duke@435: return _log_file != NULL; duke@435: } duke@435: brutisso@7448: fileStream* defaultStream::open_file(const char* log_name) { brutisso@7448: const char* try_name = make_log_name(log_name, NULL); brutisso@7448: if (try_name == NULL) { brutisso@7448: warning("Cannot open file %s: file name is too long.\n", log_name); brutisso@7448: return NULL; brutisso@7448: } brutisso@7448: brutisso@7448: fileStream* file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); brutisso@7448: FREE_C_HEAP_ARRAY(char, try_name, mtInternal); brutisso@7448: if (file->is_open()) { brutisso@7448: return file; brutisso@7448: } brutisso@7448: brutisso@7448: // Try again to open the file in the temp directory. brutisso@7448: delete file; brutisso@7448: char warnbuf[O_BUFLEN*2]; brutisso@7448: jio_snprintf(warnbuf, sizeof(warnbuf), "Warning: Cannot open log file: %s\n", log_name); brutisso@7448: // Note: This feature is for maintainer use only. No need for L10N. brutisso@7448: jio_print(warnbuf); brutisso@7448: try_name = make_log_name(log_name, os::get_temp_directory()); brutisso@7448: if (try_name == NULL) { brutisso@7448: warning("Cannot open file %s: file name is too long for directory %s.\n", log_name, os::get_temp_directory()); brutisso@7448: return NULL; brutisso@7448: } brutisso@7448: brutisso@7448: jio_snprintf(warnbuf, sizeof(warnbuf), brutisso@7448: "Warning: Forcing option -XX:LogFile=%s\n", try_name); brutisso@7448: jio_print(warnbuf); brutisso@7448: brutisso@7448: file = new(ResourceObj::C_HEAP, mtInternal) fileStream(try_name); brutisso@7448: FREE_C_HEAP_ARRAY(char, try_name, mtInternal); brutisso@7448: if (file->is_open()) { brutisso@7448: return file; brutisso@7448: } brutisso@7448: brutisso@7448: delete file; brutisso@7448: return NULL; brutisso@7448: } brutisso@7448: duke@435: void defaultStream::init_log() { duke@435: // %%% Need a MutexLocker? vlivanov@5903: const char* log_name = LogFile != NULL ? LogFile : "hotspot_%p.log"; brutisso@7448: fileStream* file = open_file(log_name); brutisso@7448: brutisso@7448: if (file != NULL) { brutisso@7448: _log_file = file; brutisso@7448: _outer_xmlStream = new(ResourceObj::C_HEAP, mtInternal) xmlStream(file); brutisso@7448: start_log(); brutisso@7448: } else { brutisso@7448: // and leave xtty as NULL brutisso@7448: LogVMOutput = false; brutisso@7448: DisplayVMOutput = true; brutisso@7448: LogCompilation = false; duke@435: } brutisso@7448: } vlivanov@5725: brutisso@7448: void defaultStream::start_log() { brutisso@7448: xmlStream*xs = _outer_xmlStream; duke@435: if (this == tty) xtty = xs; duke@435: // Write XML header. duke@435: xs->print_cr(""); duke@435: // (For now, don't bother to issue a DTD for this private format.) duke@435: jlong time_ms = os::javaTimeMillis() - tty->time_stamp().milliseconds(); duke@435: // %%% Should be: jlong time_ms = os::start_time_milliseconds(), if duke@435: // we ever get round to introduce that method on the os class duke@435: xs->head("hotspot_log version='%d %d'" kevinw@9327: " process='%d' time_ms='" INT64_FORMAT "'", duke@435: LOG_MAJOR_VERSION, LOG_MINOR_VERSION, drchase@6680: os::current_process_id(), (int64_t)time_ms); duke@435: // Write VM version header immediately. duke@435: xs->head("vm_version"); duke@435: xs->head("name"); xs->text("%s", VM_Version::vm_name()); xs->cr(); duke@435: xs->tail("name"); duke@435: xs->head("release"); xs->text("%s", VM_Version::vm_release()); xs->cr(); duke@435: xs->tail("release"); duke@435: xs->head("info"); xs->text("%s", VM_Version::internal_vm_info_string()); xs->cr(); duke@435: xs->tail("info"); duke@435: xs->tail("vm_version"); duke@435: // Record information about the command-line invocation. duke@435: xs->head("vm_arguments"); // Cf. Arguments::print_on() duke@435: if (Arguments::num_jvm_flags() > 0) { duke@435: xs->head("flags"); duke@435: Arguments::print_jvm_flags_on(xs->text()); duke@435: xs->tail("flags"); duke@435: } duke@435: if (Arguments::num_jvm_args() > 0) { duke@435: xs->head("args"); duke@435: Arguments::print_jvm_args_on(xs->text()); duke@435: xs->tail("args"); duke@435: } duke@435: if (Arguments::java_command() != NULL) { duke@435: xs->head("command"); xs->text()->print_cr("%s", Arguments::java_command()); duke@435: xs->tail("command"); duke@435: } duke@435: if (Arguments::sun_java_launcher() != NULL) { duke@435: xs->head("launcher"); xs->text()->print_cr("%s", Arguments::sun_java_launcher()); duke@435: xs->tail("launcher"); duke@435: } duke@435: if (Arguments::system_properties() != NULL) { duke@435: xs->head("properties"); duke@435: // Print it as a java-style property list. duke@435: // System properties don't generally contain newlines, so don't bother with unparsing. duke@435: for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { duke@435: xs->text()->print_cr("%s=%s", p->key(), p->value()); duke@435: } duke@435: xs->tail("properties"); duke@435: } duke@435: xs->tail("vm_arguments"); duke@435: // tty output per se is grouped under the ... element. duke@435: xs->head("tty"); duke@435: // All further non-markup text gets copied to the tty: duke@435: xs->_text = this; // requires friend declaration! duke@435: } duke@435: duke@435: // finish_log() is called during normal VM shutdown. finish_log_on_error() is duke@435: // called by ostream_abort() after a fatal error. duke@435: // duke@435: void defaultStream::finish_log() { duke@435: xmlStream* xs = _outer_xmlStream; duke@435: xs->done("tty"); duke@435: duke@435: // Other log forks are appended here, at the End of Time: duke@435: CompileLog::finish_log(xs->out()); // write compile logging, if any, now duke@435: duke@435: xs->done("hotspot_log"); duke@435: xs->flush(); duke@435: duke@435: fileStream* file = _log_file; duke@435: _log_file = NULL; duke@435: duke@435: delete _outer_xmlStream; duke@435: _outer_xmlStream = NULL; duke@435: duke@435: file->flush(); duke@435: delete file; duke@435: } duke@435: duke@435: void defaultStream::finish_log_on_error(char *buf, int buflen) { duke@435: xmlStream* xs = _outer_xmlStream; duke@435: duke@435: if (xs && xs->out()) { duke@435: duke@435: xs->done_raw("tty"); duke@435: duke@435: // Other log forks are appended here, at the End of Time: duke@435: CompileLog::finish_log_on_error(xs->out(), buf, buflen); // write compile logging, if any, now duke@435: duke@435: xs->done_raw("hotspot_log"); duke@435: xs->flush(); duke@435: duke@435: fileStream* file = _log_file; duke@435: _log_file = NULL; duke@435: _outer_xmlStream = NULL; duke@435: duke@435: if (file) { duke@435: file->flush(); duke@435: duke@435: // Can't delete or close the file because delete and fclose aren't duke@435: // async-safe. We are about to die, so leave it to the kernel. duke@435: // delete file; duke@435: } duke@435: } duke@435: } duke@435: duke@435: intx defaultStream::hold(intx writer_id) { duke@435: bool has_log = has_log_file(); // check before locking duke@435: if (// impossible, but who knows? duke@435: writer_id == NO_WRITER || duke@435: duke@435: // bootstrap problem duke@435: tty_lock == NULL || duke@435: duke@435: // can't grab a lock or call Thread::current() if TLS isn't initialized duke@435: ThreadLocalStorage::thread() == NULL || duke@435: duke@435: // developer hook duke@435: !SerializeVMOutput || duke@435: duke@435: // VM already unhealthy duke@435: is_error_reported() || duke@435: duke@435: // safepoint == global lock (for VM only) duke@435: (SafepointSynchronize::is_synchronizing() && duke@435: Thread::current()->is_VM_thread()) duke@435: ) { duke@435: // do not attempt to lock unless we know the thread and the VM is healthy duke@435: return NO_WRITER; duke@435: } duke@435: if (_writer == writer_id) { duke@435: // already held, no need to re-grab the lock duke@435: return NO_WRITER; duke@435: } duke@435: tty_lock->lock_without_safepoint_check(); duke@435: // got the lock duke@435: if (writer_id != _last_writer) { duke@435: if (has_log) { duke@435: _log_file->bol(); duke@435: // output a hint where this output is coming from: vlivanov@4154: _log_file->print_cr("", writer_id); duke@435: } duke@435: _last_writer = writer_id; duke@435: } duke@435: _writer = writer_id; duke@435: return writer_id; duke@435: } duke@435: duke@435: void defaultStream::release(intx holder) { duke@435: if (holder == NO_WRITER) { duke@435: // nothing to release: either a recursive lock, or we scribbled (too bad) duke@435: return; duke@435: } duke@435: if (_writer != holder) { duke@435: return; // already unlocked, perhaps via break_tty_lock_for_safepoint duke@435: } duke@435: _writer = NO_WRITER; duke@435: tty_lock->unlock(); duke@435: } duke@435: duke@435: duke@435: // Yuck: jio_print does not accept char*/len. duke@435: static void call_jio_print(const char* s, size_t len) { duke@435: char buffer[O_BUFLEN+100]; duke@435: if (len > sizeof(buffer)-1) { duke@435: warning("increase O_BUFLEN in ostream.cpp -- output truncated"); duke@435: len = sizeof(buffer)-1; duke@435: } duke@435: strncpy(buffer, s, len); duke@435: buffer[len] = '\0'; duke@435: jio_print(buffer); duke@435: } duke@435: duke@435: duke@435: void defaultStream::write(const char* s, size_t len) { duke@435: intx thread_id = os::current_thread_id(); duke@435: intx holder = hold(thread_id); duke@435: duke@435: if (DisplayVMOutput && duke@435: (_outer_xmlStream == NULL || !_outer_xmlStream->inside_attrs())) { duke@435: // print to output stream. It can be redirected by a vfprintf hook duke@435: if (s[len] == '\0') { duke@435: jio_print(s); duke@435: } else { duke@435: call_jio_print(s, len); duke@435: } duke@435: } duke@435: duke@435: // print to log file duke@435: if (has_log_file()) { duke@435: int nl0 = _newlines; duke@435: xmlTextStream::write(s, len); duke@435: // flush the log file too, if there were any newlines duke@435: if (nl0 != _newlines){ duke@435: flush(); duke@435: } duke@435: } else { duke@435: update_position(s, len); duke@435: } duke@435: duke@435: release(holder); duke@435: } duke@435: duke@435: intx ttyLocker::hold_tty() { duke@435: if (defaultStream::instance == NULL) return defaultStream::NO_WRITER; duke@435: intx thread_id = os::current_thread_id(); duke@435: return defaultStream::instance->hold(thread_id); duke@435: } duke@435: duke@435: void ttyLocker::release_tty(intx holder) { duke@435: if (holder == defaultStream::NO_WRITER) return; duke@435: defaultStream::instance->release(holder); duke@435: } duke@435: never@2570: bool ttyLocker::release_tty_if_locked() { never@2570: intx thread_id = os::current_thread_id(); never@2570: if (defaultStream::instance->writer() == thread_id) { never@2570: // release the lock and return true so callers know if was never@2570: // previously held. never@2570: release_tty(thread_id); never@2570: return true; never@2570: } never@2570: return false; never@2570: } never@2570: duke@435: void ttyLocker::break_tty_lock_for_safepoint(intx holder) { duke@435: if (defaultStream::instance != NULL && duke@435: defaultStream::instance->writer() == holder) { duke@435: if (xtty != NULL) { duke@435: xtty->print_cr(""); duke@435: } duke@435: defaultStream::instance->release(holder); duke@435: } duke@435: // (else there was no lock to break) duke@435: } duke@435: duke@435: void ostream_init() { duke@435: if (defaultStream::instance == NULL) { zgu@3900: defaultStream::instance = new(ResourceObj::C_HEAP, mtInternal) defaultStream(); duke@435: tty = defaultStream::instance; duke@435: duke@435: // We want to ensure that time stamps in GC logs consider time 0 duke@435: // the time when the JVM is initialized, not the first time we ask duke@435: // for a time stamp. So, here, we explicitly update the time stamp duke@435: // of tty. duke@435: tty->time_stamp().update_to(1); duke@435: } duke@435: } duke@435: duke@435: void ostream_init_log() { duke@435: // For -Xloggc: option - called in runtime/thread.cpp duke@435: // Note : this must be called AFTER ostream_init() duke@435: duke@435: gclog_or_tty = tty; // default to tty duke@435: if (Arguments::gc_log_filename() != NULL) { minqi@5683: fileStream * gclog = new(ResourceObj::C_HEAP, mtInternal) minqi@5683: gcLogFileStream(Arguments::gc_log_filename()); duke@435: if (gclog->is_open()) { duke@435: // now we update the time stamp of the GC log to be synced up duke@435: // with tty. duke@435: gclog->time_stamp().update_to(tty->time_stamp().ticks()); duke@435: } minqi@2964: gclog_or_tty = gclog; duke@435: } duke@435: iklam@7089: #if INCLUDE_CDS iklam@7089: // For -XX:DumpLoadedClassList= option iklam@7089: if (DumpLoadedClassList != NULL) { iklam@7089: const char* list_name = make_log_name(DumpLoadedClassList, NULL); iklam@7089: classlist_file = new(ResourceObj::C_HEAP, mtInternal) iklam@7089: fileStream(list_name); iklam@7089: FREE_C_HEAP_ARRAY(char, list_name, mtInternal); iklam@7089: } iklam@7089: #endif iklam@7089: duke@435: // If we haven't lazily initialized the logfile yet, do it now, duke@435: // to avoid the possibility of lazy initialization during a VM duke@435: // crash, which can affect the stability of the fatal error handler. duke@435: defaultStream::instance->has_log_file(); duke@435: } duke@435: duke@435: // ostream_exit() is called during normal VM exit to finish log files, flush duke@435: // output and free resource. duke@435: void ostream_exit() { duke@435: static bool ostream_exit_called = false; duke@435: if (ostream_exit_called) return; duke@435: ostream_exit_called = true; iklam@7089: #if INCLUDE_CDS iklam@7089: if (classlist_file != NULL) { iklam@7089: delete classlist_file; iklam@7089: } iklam@7089: #endif duke@435: if (gclog_or_tty != tty) { duke@435: delete gclog_or_tty; duke@435: } duke@435: { duke@435: // we temporaly disable PrintMallocFree here duke@435: // as otherwise it'll lead to using of almost deleted duke@435: // tty or defaultStream::instance in logging facility duke@435: // of HeapFree(), see 6391258 duke@435: DEBUG_ONLY(FlagSetting fs(PrintMallocFree, false);) duke@435: if (tty != defaultStream::instance) { duke@435: delete tty; duke@435: } duke@435: if (defaultStream::instance != NULL) { duke@435: delete defaultStream::instance; duke@435: } duke@435: } duke@435: tty = NULL; duke@435: xtty = NULL; duke@435: gclog_or_tty = NULL; duke@435: defaultStream::instance = NULL; duke@435: } duke@435: duke@435: // ostream_abort() is called by os::abort() when VM is about to die. duke@435: void ostream_abort() { duke@435: // Here we can't delete gclog_or_tty and tty, just flush their output duke@435: if (gclog_or_tty) gclog_or_tty->flush(); duke@435: if (tty) tty->flush(); duke@435: duke@435: if (defaultStream::instance != NULL) { duke@435: static char buf[4096]; duke@435: defaultStream::instance->finish_log_on_error(buf, sizeof(buf)); duke@435: } duke@435: } duke@435: duke@435: staticBufferStream::staticBufferStream(char* buffer, size_t buflen, duke@435: outputStream *outer_stream) { duke@435: _buffer = buffer; duke@435: _buflen = buflen; duke@435: _outer_stream = outer_stream; kvn@2702: // compile task prints time stamp relative to VM start kvn@2702: _stamp.update_to(1); duke@435: } duke@435: duke@435: void staticBufferStream::write(const char* c, size_t len) { duke@435: _outer_stream->print_raw(c, (int)len); duke@435: } duke@435: duke@435: void staticBufferStream::flush() { duke@435: _outer_stream->flush(); duke@435: } duke@435: duke@435: void staticBufferStream::print(const char* format, ...) { duke@435: va_list ap; duke@435: va_start(ap, format); duke@435: size_t len; duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, ap, false, len); duke@435: write(str, len); duke@435: va_end(ap); duke@435: } duke@435: duke@435: void staticBufferStream::print_cr(const char* format, ...) { duke@435: va_list ap; duke@435: va_start(ap, format); duke@435: size_t len; duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, ap, true, len); duke@435: write(str, len); duke@435: va_end(ap); duke@435: } duke@435: duke@435: void staticBufferStream::vprint(const char *format, va_list argptr) { duke@435: size_t len; duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, false, len); duke@435: write(str, len); duke@435: } duke@435: duke@435: void staticBufferStream::vprint_cr(const char* format, va_list argptr) { duke@435: size_t len; duke@435: const char* str = do_vsnprintf(_buffer, _buflen, format, argptr, true, len); duke@435: write(str, len); duke@435: } duke@435: never@657: bufferedStream::bufferedStream(size_t initial_size, size_t bufmax) : outputStream() { duke@435: buffer_length = initial_size; zgu@3900: buffer = NEW_C_HEAP_ARRAY(char, buffer_length, mtInternal); duke@435: buffer_pos = 0; duke@435: buffer_fixed = false; never@657: buffer_max = bufmax; duke@435: } duke@435: never@657: bufferedStream::bufferedStream(char* fixed_buffer, size_t fixed_buffer_size, size_t bufmax) : outputStream() { duke@435: buffer_length = fixed_buffer_size; duke@435: buffer = fixed_buffer; duke@435: buffer_pos = 0; duke@435: buffer_fixed = true; never@657: buffer_max = bufmax; duke@435: } duke@435: duke@435: void bufferedStream::write(const char* s, size_t len) { never@657: never@657: if(buffer_pos + len > buffer_max) { never@657: flush(); never@657: } never@657: duke@435: size_t end = buffer_pos + len; duke@435: if (end >= buffer_length) { duke@435: if (buffer_fixed) { duke@435: // if buffer cannot resize, silently truncate duke@435: len = buffer_length - buffer_pos - 1; duke@435: } else { duke@435: // For small overruns, double the buffer. For larger ones, duke@435: // increase to the requested size. duke@435: if (end < buffer_length * 2) { duke@435: end = buffer_length * 2; duke@435: } zgu@3900: buffer = REALLOC_C_HEAP_ARRAY(char, buffer, end, mtInternal); duke@435: buffer_length = end; duke@435: } duke@435: } duke@435: memcpy(buffer + buffer_pos, s, len); duke@435: buffer_pos += len; duke@435: update_position(s, len); duke@435: } duke@435: duke@435: char* bufferedStream::as_string() { duke@435: char* copy = NEW_RESOURCE_ARRAY(char, buffer_pos+1); duke@435: strncpy(copy, buffer, buffer_pos); duke@435: copy[buffer_pos] = 0; // terminating null duke@435: return copy; duke@435: } duke@435: duke@435: bufferedStream::~bufferedStream() { duke@435: if (!buffer_fixed) { zgu@3900: FREE_C_HEAP_ARRAY(char, buffer, mtInternal); duke@435: } duke@435: } duke@435: duke@435: #ifndef PRODUCT duke@435: goetz@6461: #if defined(SOLARIS) || defined(LINUX) || defined(AIX) || defined(_ALLBSD_SOURCE) duke@435: #include duke@435: #include duke@435: #include duke@435: #include duke@435: #endif duke@435: duke@435: // Network access never@657: networkStream::networkStream() : bufferedStream(1024*10, 1024*10) { duke@435: duke@435: _socket = -1; duke@435: ikrylov@2322: int result = os::socket(AF_INET, SOCK_STREAM, 0); duke@435: if (result <= 0) { duke@435: assert(false, "Socket could not be created!"); duke@435: } else { duke@435: _socket = result; duke@435: } duke@435: } duke@435: duke@435: int networkStream::read(char *buf, size_t len) { ikrylov@2322: return os::recv(_socket, buf, (int)len, 0); duke@435: } duke@435: duke@435: void networkStream::flush() { duke@435: if (size() != 0) { phh@3344: int result = os::raw_send(_socket, (char *)base(), size(), 0); never@657: assert(result != -1, "connection error"); never@657: assert(result == (int)size(), "didn't send enough data"); duke@435: } duke@435: reset(); duke@435: } duke@435: duke@435: networkStream::~networkStream() { duke@435: close(); duke@435: } duke@435: duke@435: void networkStream::close() { duke@435: if (_socket != -1) { duke@435: flush(); ikrylov@2322: os::socket_close(_socket); duke@435: _socket = -1; duke@435: } duke@435: } duke@435: duke@435: bool networkStream::connect(const char *ip, short port) { duke@435: duke@435: struct sockaddr_in server; duke@435: server.sin_family = AF_INET; duke@435: server.sin_port = htons(port); duke@435: duke@435: server.sin_addr.s_addr = inet_addr(ip); jcoomes@515: if (server.sin_addr.s_addr == (uint32_t)-1) { ikrylov@2322: struct hostent* host = os::get_host_by_name((char*)ip); duke@435: if (host != NULL) { duke@435: memcpy(&server.sin_addr, host->h_addr_list[0], host->h_length); duke@435: } else { duke@435: return false; duke@435: } duke@435: } duke@435: duke@435: ikrylov@2322: int result = os::connect(_socket, (struct sockaddr*)&server, sizeof(struct sockaddr_in)); duke@435: return (result >= 0); duke@435: } duke@435: duke@435: #endif