| /* |
| * Copyright (c) 2000, 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. |
| * |
| */ |
| |
| package sun.jvm.hotspot.debugger.win32.coff; |
| |
| /** Describes the header of a section in a COFF file. The section |
| headers are grouped together into the Section Table. (Some of the |
| descriptions are taken directly from Microsoft's documentation and |
| are copyrighted by Microsoft.) */ |
| |
| public interface SectionHeader { |
| public String getName(); |
| |
| /** Total size of the section when loaded into memory. If this value |
| is greater than Size of Raw Data, the section is zero-padded. |
| This field is valid only for executable images and should be set |
| to 0 for object files. */ |
| public int getSize(); |
| |
| /** For executable images this is the address of the first byte of |
| the section, when loaded into memory, relative to the image |
| base. For object files, this field is the address of the first |
| byte before relocation is applied; for simplicity, compilers |
| should set this to zero. Otherwise, it is an arbitrary value |
| that is subtracted from offsets during relocation. */ |
| public int getVirtualAddress(); |
| |
| /** Size of the section (object file) or size of the initialized |
| data on disk (image files). For executable image, this must be a |
| multiple of FileAlignment from the optional header. If this is |
| less than VirtualSize the remainder of the section is zero |
| filled. Because this field is rounded while the VirtualSize |
| field is not it is possible for this to be greater than |
| VirtualSize as well. When a section contains only uninitialized |
| data, this field should be 0. */ |
| public int getSizeOfRawData(); |
| |
| /** File pointer to section's first page within the COFF file. For |
| executable images, this must be a multiple of FileAlignment from |
| the optional header. For object files, the value should be |
| aligned on a four-byte boundary for best performance. When a |
| section contains only uninitialized data, this field should be |
| 0. */ |
| public int getPointerToRawData(); |
| |
| /** File pointer to beginning of relocation entries for the section. |
| Set to 0 for executable images or if there are no |
| relocations. */ |
| public int getPointerToRelocations(); |
| |
| /** File pointer to beginning of line-number entries for the |
| section. Set to 0 if there are no COFF line numbers. */ |
| public int getPointerToLineNumbers(); |
| |
| /** Number of relocation entries for the section. Set to 0 for |
| executable images. */ |
| public short getNumberOfRelocations(); |
| |
| /** Number of line-number entries for the section. */ |
| public short getNumberOfLineNumbers(); |
| |
| /** Flags describing section's characteristics; see {@link |
| sun.jvm.hotspot.debugger.win32.coff.SectionFlags}. */ |
| public int getSectionFlags(); |
| |
| /** Returns true if the appropriate flag (from {@link |
| sun.jvm.hotspot.debugger.win32.coff.SectionFlags}) is set. */ |
| public boolean hasSectionFlag(int flag); |
| |
| /** This is only present for object files. Retrieves the COFF |
| relocation at the given index; valid indices are numbered |
| 0...getNumberOfRelocations() - 1. */ |
| public COFFRelocation getCOFFRelocation(int index); |
| |
| /** Retrieves the COFF line number at the given index; valid indices |
| are numbered 0...getNumberOfLineNumbers() - 1. */ |
| public COFFLineNumber getCOFFLineNumber(int index); |
| } |