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Provide helper class for PE64 objects

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This class is intended to mirror the capabilities of the ElfHelper class
over time. Initial support allows for correct presentation of section
sizes within the Eclipse Properties view when a PE64 object file is
selected.
This commit is contained in:
John Dallaway 2023-12-21 18:41:05 +00:00
parent dde763ac0c
commit c37626a3d1
5 changed files with 102 additions and 2 deletions
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17
core/org.eclipse.cdt.core/.settings/.api_filters Normal file
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@ -0,0 +1,17 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<component id="org.eclipse.cdt.core" version="2">
<resource path="utils/org/eclipse/cdt/utils/coff/Coff64.java" type="org.eclipse.cdt.utils.coff.Coff64$SectionHeader">
<filter id="336658481">
<message_arguments>
<message_argument value="org.eclipse.cdt.utils.coff.Coff64.SectionHeader"/>
<message_argument value="STYP_MEM_DISCARDABLE"/>
</message_arguments>
</filter>
<filter id="336658481">
<message_arguments>
<message_argument value="org.eclipse.cdt.utils.coff.Coff64.SectionHeader"/>
<message_argument value="STYP_MEM_WRITE"/>
</message_arguments>
</filter>
</resource>
</component>

2
core/org.eclipse.cdt.core/META-INF/MANIFEST.MF
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@ -2,7 +2,7 @@ Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %pluginName
Bundle-SymbolicName: org.eclipse.cdt.core; singleton:=true
Bundle-Version: 8.3.200.qualifier
Bundle-Version: 8.4.0.qualifier
Bundle-Activator: org.eclipse.cdt.core.CCorePlugin
Bundle-Vendor: %providerName
Bundle-Localization: plugin

7
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/Coff64.java
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@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2000, 2020 Space Codesign Systems and others.
* Copyright (c) 2000, 2023 Space Codesign Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
@ -12,6 +12,7 @@
* Space Codesign Systems - Initial API and implementation
* QNX Software Systems - Initial Coff class
* Alexander Fedorov (ArSysOp) - Bug 561992
* John Dallaway - Provide additional section header flags (#652)
*******************************************************************************/
package org.eclipse.cdt.utils.coff;
@ -310,6 +311,10 @@ public class Coff64 {
word boundary. */
public final static int STYP_LIT = 0x8020; /* Literal data (like STYP_TEXT) */
/** @since 8.4 */
public static final int STYP_MEM_DISCARDABLE = 0x02000000; /* section is discardable */
/** @since 8.4 */
public static final int STYP_MEM_WRITE = 0x80000000; /* section can be written to */
public byte[] s_name = new byte[8]; // 8 bytes: section name
public int s_paddr; // 4 bytes: physical address, aliased s_nlib

71
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEHelper64.java Normal file
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@ -0,0 +1,71 @@
/*******************************************************************************
* Copyright (c) 2000, 2023 QNX Software Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* QNX Software Systems - Initial API and implementation of ElfHelper
* John Dallaway - Initial PEHelper64 implementation (#652)
*******************************************************************************/
package org.eclipse.cdt.utils.coff;
import java.io.IOException;
import org.eclipse.cdt.utils.coff.Coff64.FileHeader;
import org.eclipse.cdt.utils.coff.Coff64.SectionHeader;
/**
* <code>PEHelper64</code> is a wrapper class for the <code>PE64</code> class
* to provide higher level API for sorting/searching the COFF data.
*
* @see PE64
* @since 8.4
*/
public final class PEHelper64 {
public static record Sizes(long text, long data, long bss) {
public long total() {
return text + data + bss;
}
}
private final PE64 pe64;
public PEHelper64(PE64 pe64) {
this.pe64 = pe64;
}
public Sizes getSizes() throws IOException {
long bss = 0;
long data = 0;
long text = 0;
boolean isExecutable = (pe64.getFileHeader().f_flags & FileHeader.F_EXEC) != 0;
for (SectionHeader section : pe64.getSectionHeaders()) {
if ((section.s_flags & SectionHeader.STYP_MEM_DISCARDABLE) != 0) {
continue; // ignore discardable section
}
long size = isExecutable ? section.s_paddr : section.s_size;
if ((section.s_flags & SectionHeader.STYP_BSS) != 0) {
bss += size;
} else if ((section.s_flags & SectionHeader.STYP_DATA) != 0) {
if ((section.s_flags & SectionHeader.STYP_MEM_WRITE) != 0) {
data += size; // treat writable data section as data
} else {
text += size; // treat non-writable data section as text
}
} else if ((section.s_flags & SectionHeader.STYP_TEXT) != 0) {
text += size;
}
}
return new Sizes(text, data, bss);
}
}

7
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEBinaryObject64.java
View file

@ -12,6 +12,7 @@
* Space Codesign Systems - Initial API and implementation
* QNX Software Systems - Initial PEBinaryObject class
* John Dallaway - Fix archive header processing (#630)
* John Dallaway - Support sections sizes in binary info (#652)
*******************************************************************************/
package org.eclipse.cdt.utils.coff.parser;
@ -34,6 +35,8 @@ import org.eclipse.cdt.utils.BinaryObjectAdapter;
import org.eclipse.cdt.utils.Symbol;
import org.eclipse.cdt.utils.coff.Coff64;
import org.eclipse.cdt.utils.coff.PE64;
import org.eclipse.cdt.utils.coff.PEHelper64;
import org.eclipse.cdt.utils.coff.PEHelper64.Sizes;
import org.eclipse.core.runtime.IPath;
/**
@ -146,6 +149,10 @@ public class PEBinaryObject64 extends BinaryObjectAdapter {
info.isLittleEndian = attribute.isLittleEndian();
info.hasDebug = attribute.hasDebug();
info.cpu = attribute.getCPU();
Sizes sizes = new PEHelper64(pe).getSizes();
info.bss = sizes.bss();
info.data = sizes.data();
info.text = sizes.text();
}
protected void loadSymbols(PE64 pe) throws IOException {