jdk8-mips64-public/hotspot: comparison src/os/aix/vm/loadlib

-:b83f7d608548
+:666e6ce3976c
+/*
+* Copyright 2012, 2013 SAP AG. 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.
+*
+*/
+// Implementation of LoadedLibraries and friends
+// Ultimately this just uses loadquery()
+// See:
+// http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp
+//      ?topic=/com.ibm.aix.basetechref/doc/basetrf1/loadquery.htm
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS
+#endif
+// 'allocation.inline.hpp' triggers the inclusion of 'inttypes.h' which defines macros
+// required by the definitions in 'globalDefinitions.hpp'. But these macros in 'inttypes.h'
+// are only defined if '__STDC_FORMAT_MACROS' is defined!
+#include "memory/allocation.inline.hpp"
+#include "oops/oop.inline.hpp"
+#include "runtime/threadCritical.hpp"
+#include "utilities/debug.hpp"
+#include "utilities/ostream.hpp"
+#include "loadlib_aix.hpp"
+#include "porting_aix.hpp"
+// For loadquery()
+#include <sys/ldr.h>
+///////////////////////////////////////////////////////////////////////////////
+// Implementation for LoadedLibraryModule
+// output debug info
+void LoadedLibraryModule::print(outputStream* os) const {
+os->print("%15.15s: text: " INTPTR_FORMAT " - " INTPTR_FORMAT
+", data: " INTPTR_FORMAT " - " INTPTR_FORMAT " ",
+shortname, text_from, text_to, data_from, data_to);
+os->print(" %s", fullpath);
+if (strlen(membername) > 0) {
+os->print("(%s)", membername);
+}
+os->cr();
+}
+///////////////////////////////////////////////////////////////////////////////
+// Implementation for LoadedLibraries
+// class variables
+LoadedLibraryModule LoadedLibraries::tab[MAX_MODULES];
+int LoadedLibraries::num_loaded = 0;
+// Checks whether the address p points to any of the loaded code segments.
+// If it does, returns the LoadedLibraryModule entry. If not, returns NULL.
+// static
+const LoadedLibraryModule* LoadedLibraries::find_for_text_address(const unsigned char* p) {
+if (num_loaded == 0) {
+reload();
+}
+for (int i = 0; i < num_loaded; i++) {
+if (tab[i].is_in_text(p)) {
+return &tab[i];
+}
+}
+return NULL;
+}
+// Checks whether the address p points to any of the loaded data segments.
+// If it does, returns the LoadedLibraryModule entry. If not, returns NULL.
+// static
+const LoadedLibraryModule* LoadedLibraries::find_for_data_address(const unsigned char* p) {
+if (num_loaded == 0) {
+reload();
+}
+for (int i = 0; i < num_loaded; i++) {
+if (tab[i].is_in_data(p)) {
+return &tab[i];
+}
+}
+return NULL;
+}
+// Rebuild the internal table of LoadedLibraryModule objects
+// static
+void LoadedLibraries::reload() {
+ThreadCritical cs;
+// discard old content
+num_loaded = 0;
+// Call loadquery(L_GETINFO..) to get a list of all loaded Dlls from AIX.
+size_t buf_size = 4096;
+char* loadquery_buf = AllocateHeap(buf_size, mtInternal);
+while(loadquery(L_GETINFO, loadquery_buf, buf_size) == -1) {
+if (errno == ENOMEM) {
+buf_size *= 2;
+loadquery_buf = ReallocateHeap(loadquery_buf, buf_size, mtInternal);
+} else {
+FreeHeap(loadquery_buf);
+// Ensure that the uintptr_t pointer is valid
+assert(errno != EFAULT, "loadquery: Invalid uintptr_t in info buffer.");
+fprintf(stderr, "loadquery failed (%d %s)", errno, strerror(errno));
+return;
+}
+}
+// Iterate over the loadquery result. For details see sys/ldr.h on AIX.
+const struct ld_info* p = (struct ld_info*) loadquery_buf;
+// Ensure we have all loaded libs.
+bool all_loaded = false;
+while(num_loaded < MAX_MODULES) {
+LoadedLibraryModule& mod = tab[num_loaded];
+mod.text_from = (const unsigned char*) p->ldinfo_textorg;
+mod.text_to   = (const unsigned char*) (((char*)p->ldinfo_textorg) + p->ldinfo_textsize);
+mod.data_from = (const unsigned char*) p->ldinfo_dataorg;
+mod.data_to   = (const unsigned char*) (((char*)p->ldinfo_dataorg) + p->ldinfo_datasize);
+sprintf(mod.fullpath, "%.*s", sizeof(mod.fullpath), p->ldinfo_filename);
+// do we have a member name as well (see ldr.h)?
+const char* p_mbr_name = p->ldinfo_filename + strlen(p->ldinfo_filename) + 1;
+if (*p_mbr_name) {
+sprintf(mod.membername, "%.*s", sizeof(mod.membername), p_mbr_name);
+} else {
+mod.membername[0] = '\0';
+}
+// fill in the short name
+const char* p_slash = strrchr(mod.fullpath, '/');
+if (p_slash) {
+sprintf(mod.shortname, "%.*s", sizeof(mod.shortname), p_slash + 1);
+} else {
+sprintf(mod.shortname, "%.*s", sizeof(mod.shortname), mod.fullpath);
+}
+num_loaded ++;
+// next entry...
+if (p->ldinfo_next) {
+p = (struct ld_info*)(((char*)p) + p->ldinfo_next);
+} else {
+all_loaded = true;
+break;
+}
+}
+FreeHeap(loadquery_buf);
+// Ensure we have all loaded libs
+assert(all_loaded, "loadquery returned more entries then expected. Please increase MAX_MODULES");
+} // end LoadedLibraries::reload()
+// output loaded libraries table
+//static
+void LoadedLibraries::print(outputStream* os) {
+for (int i = 0; i < num_loaded; i++) {
+tab[i].print(os);
+}
+}

comparison: src/os/aix/vm/loadlib_aix.cpp

src/os/aix/vm/loadlib_aix.cpp

Mercurial > jdk8-mips64-public > hotspot / file comparison

comparison: src/os/aix/vm/loadlib_aix.cpp

src/os/aix/vm/loadlib_aix.cpp