Mercurial > hg > graal-compiler
view src/share/vm/classfile/sharedPathsMiscInfo.cpp @ 21638:b6aadfd3dfbe
fixed compile error in FilterTypes.java
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 01 Jun 2015 16:10:50 +0200 |
parents | bb239308be67 |
children |
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/* * Copyright (c) 2014, Oracle and/or its affiliates. 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. * */ #include "precompiled.hpp" #include "classfile/classLoader.hpp" #include "classfile/classLoaderData.inline.hpp" #include "classfile/sharedPathsMiscInfo.hpp" #include "memory/allocation.inline.hpp" #include "memory/metaspaceShared.hpp" #include "runtime/arguments.hpp" void SharedPathsMiscInfo::add_path(const char* path, int type) { if (TraceClassPaths) { tty->print("[type=%s] ", type_name(type)); trace_class_path("[Add misc shared path ", path); } write(path, strlen(path) + 1); write_jint(jint(type)); } void SharedPathsMiscInfo::ensure_size(size_t needed_bytes) { assert(_allocated, "cannot modify buffer during validation."); int used = get_used_bytes(); int target = used + int(needed_bytes); if (target > _buf_size) { _buf_size = _buf_size * 2 + (int)needed_bytes; _buf_start = REALLOC_C_HEAP_ARRAY(char, _buf_start, _buf_size, mtClass); _cur_ptr = _buf_start + used; _end_ptr = _buf_start + _buf_size; } } void SharedPathsMiscInfo::write(const void* ptr, size_t size) { ensure_size(size); memcpy(_cur_ptr, ptr, size); _cur_ptr += size; } bool SharedPathsMiscInfo::read(void* ptr, size_t size) { if (_cur_ptr + size <= _end_ptr) { memcpy(ptr, _cur_ptr, size); _cur_ptr += size; return true; } return false; } bool SharedPathsMiscInfo::fail(const char* msg, const char* name) { ClassLoader::trace_class_path(msg, name); MetaspaceShared::set_archive_loading_failed(); return false; } bool SharedPathsMiscInfo::check() { // The whole buffer must be 0 terminated so that we can use strlen and strcmp // without fear. _end_ptr -= sizeof(jint); if (_cur_ptr >= _end_ptr) { return fail("Truncated archive file header"); } if (*_end_ptr != 0) { return fail("Corrupted archive file header"); } while (_cur_ptr < _end_ptr) { jint type; const char* path = _cur_ptr; _cur_ptr += strlen(path) + 1; if (!read_jint(&type)) { return fail("Corrupted archive file header"); } if (TraceClassPaths) { tty->print("[type=%s ", type_name(type)); print_path(tty, type, path); tty->print_cr("]"); } if (!check(type, path)) { if (!PrintSharedArchiveAndExit) { return false; } } else { trace_class_path("[ok"); } } return true; } bool SharedPathsMiscInfo::check(jint type, const char* path) { switch (type) { case BOOT: if (strcmp(path, Arguments::get_sysclasspath()) != 0) { return fail("[BOOT classpath mismatch, actual: -Dsun.boot.class.path=", Arguments::get_sysclasspath()); } break; case NON_EXIST: // fall-through case REQUIRED: { struct stat st; if (os::stat(path, &st) != 0) { // The file does not actually exist if (type == REQUIRED) { // but we require it to exist -> fail return fail("Required file doesn't exist"); } } else { // The file actually exists if (type == NON_EXIST) { // But we want it to not exist -> fail return fail("File must not exist"); } time_t timestamp; long filesize; if (!read_time(×tamp) || !read_long(&filesize)) { return fail("Corrupted archive file header"); } if (timestamp != st.st_mtime) { return fail("Timestamp mismatch"); } if (filesize != st.st_size) { return fail("File size mismatch"); } } } break; default: return fail("Corrupted archive file header"); } return true; }