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Invoke "gcc" to build assembler files #671

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Jan 24, 2024
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %pluginName
Bundle-SymbolicName: org.eclipse.cdt.managedbuilder.core.tests; singleton:=true
Bundle-Version: 8.2.300.qualifier
Bundle-Version: 8.2.400.qualifier
Bundle-Activator: org.eclipse.cdt.managedbuilder.testplugin.CTestPlugin
Bundle-Vendor: %providerName
Bundle-Localization: plugin
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ ASM_SRCS :=
C_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C_DEPS :=
EXECUTABLES :=
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ ASM_SRCS :=
C_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C_DEPS :=
EXECUTABLES :=
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ ASM_SRCS :=
C_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C_DEPS :=
EXECUTABLES :=
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ CXXM_SRCS :=
CXX_SRCS :=
C_UPPER_SRCS :=
LOG_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
TAR_SRCS :=
LOGFILE :=
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ ASM_SRCS :=
C_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C_DEPS :=
EXECUTABLES :=
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ C_SRCS :=
C_UPPER_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C++M_DEPS :=
C++_DEPS :=
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ C_SRCS :=
C_UPPER_SRCS :=
OBJ_SRCS :=
O_SRCS :=
SX_SRCS :=
S_UPPER_SRCS :=
C++M_DEPS :=
C++_DEPS :=
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %pluginName
Bundle-SymbolicName: org.eclipse.cdt.managedbuilder.core; singleton:=true
Bundle-Version: 9.6.200.qualifier
Bundle-Version: 9.6.300.qualifier
Bundle-Activator: org.eclipse.cdt.managedbuilder.core.ManagedBuilderCorePlugin
Bundle-Vendor: %providerName
Bundle-Localization: plugin
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2006, 2010 Intel Corporation and others.
* Copyright (c) 2006, 2024 Intel Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
Expand All @@ -10,6 +10,7 @@
*
* Contributors:
* Intel Corporation - Initial API and implementation
* John Dallaway - Provide getter for IConfiguration (#666)
*******************************************************************************/

package org.eclipse.cdt.managedbuilder.internal.buildmodel;
Expand All @@ -36,6 +37,10 @@ public FileMacroExplicitSubstitutor(IMacroContextInfo contextInfo, IConfiguratio
fBuilder = builder;
}

public IConfiguration getConfiguration() {
return fCfg;
}

/* (non-Javadoc)
* @see org.eclipse.cdt.managedbuilder.internal.macros.DefaultMacroSubstitutor#resolveMacro(org.eclipse.cdt.managedbuilder.macros.IBuildMacro)
*/
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %pluginName
Bundle-SymbolicName: org.eclipse.cdt.managedbuilder.gnu.ui; singleton:=true
Bundle-Version: 8.6.100.qualifier
Bundle-Version: 8.7.0.qualifier
Bundle-Activator: org.eclipse.cdt.managedbuilder.gnu.ui.GnuUIPlugin
Bundle-Vendor: %providerName
Bundle-Localization: plugin
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6 changes: 4 additions & 2 deletions build/org.eclipse.cdt.managedbuilder.gnu.ui/plugin.xml
Original file line number Diff line number Diff line change
Expand Up @@ -565,7 +565,7 @@
id="gnu.windres.option.preprocessor.undefined.symbols"/>
</tool-->
<tool
command="as"
command="gcc"
name="%ToolName.assembler.gnu"
outputFlag="-o"
id="cdt.managedbuild.tool.gnu.assembler"
Expand All @@ -579,6 +579,8 @@
<option
name="%Option.Gnu.Assembler.Flags"
category="gnu.asm.category.general"
commandGenerator="org.eclipse.cdt.managedbuilder.gnu.ui.GnuAsmFlagsCommandGenerator"
defaultValue="-c"
valueType="string"
id="gnu.both.asm.option.flags">
</option>
Expand Down Expand Up @@ -607,7 +609,7 @@
id="cdt.managedbuild.tool.gnu.assembler.input"
languageId="org.eclipse.cdt.core.assembly"
sourceContentType="org.eclipse.cdt.core.asmSource"
sources="s,S">
sources="s,sx,S">
</inputType>
<outputType
outputs="o"
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Original file line number Diff line number Diff line change
@@ -0,0 +1,97 @@
/*******************************************************************************
* Copyright (c) 2024 John Dallaway 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:
* John Dallaway - initial implementation (#666)
*******************************************************************************/
package org.eclipse.cdt.managedbuilder.gnu.ui;

import java.util.regex.Pattern;

import org.eclipse.cdt.core.cdtvariables.CdtVariableException;
import org.eclipse.cdt.managedbuilder.core.BuildException;
import org.eclipse.cdt.managedbuilder.core.IConfiguration;
import org.eclipse.cdt.managedbuilder.core.IOption;
import org.eclipse.cdt.managedbuilder.core.IOptionCommandGenerator;
import org.eclipse.cdt.managedbuilder.core.ITool;
import org.eclipse.cdt.managedbuilder.internal.buildmodel.FileMacroExplicitSubstitutor;
import org.eclipse.cdt.managedbuilder.internal.macros.BuildfileMacroSubstitutor;
import org.eclipse.cdt.utils.cdtvariables.CdtVariableResolver;
import org.eclipse.cdt.utils.cdtvariables.IVariableSubstitutor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;

/**
* Assembler flags command generator.
* This command generator supports managed build projects that were
* created using older versions of the GNU toolchain build description
* where assembly files were built by invoking the GNU "as" tool directly.
* @noextend This class is not intended to be subclassed by clients.
* @noinstantiate This class is not intended to be instantiated by clients.
* @since 8.7
*/
public class GnuAsmFlagsCommandGenerator implements IOptionCommandGenerator {

private static final String DO_NOT_LINK_FLAG = "-c"; //$NON-NLS-1$
private static final Pattern DO_NOT_LINK_PATTERN = Pattern.compile("(^|\\s)-c($|\\s)"); //$NON-NLS-1$
private static final Pattern ASM_FLAG_PATTERN = Pattern.compile("-[aDKLR]\\S*"); //$NON-NLS-1$

@Override
public String generateCommand(IOption option, IVariableSubstitutor macroSubstitutor) {
String toolCommand = getToolCommand(option, macroSubstitutor);
try {
if (null != toolCommand && IOption.STRING == option.getValueType() && option.getCommand().isEmpty()) {
String optionValue = option.getStringValue();
if (toolCommand.equals("gcc")) { //$NON-NLS-1$
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Sorry to be late the party here, but should this line not match arm-non-eabi-gcc for example, or gcc.exe? Or is it enough to have a strict check for gcc?

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We are checking only whether the tool command has been overridden. We don't care if it has been overridden by the user or by an extender. If the tool command has been overridden, then our new default value (gcc) will have no effect on the build and we do not need to modify the assembler flags.

// if the default assembler tool command has not been overridden
String command = CdtVariableResolver.resolveToString(optionValue, macroSubstitutor);
if (!DO_NOT_LINK_PATTERN.matcher(command).find()) {
// if the "-c" flag is not already present on the command line we
// assume the flags target the GNU "as" command line rather than the
// "gcc" command line so we add the "-c" flag and apply the "-Wa,"
// prefix to those flags that are intended only for the assembler
return DO_NOT_LINK_FLAG + " " + ASM_FLAG_PATTERN.matcher(command).replaceAll("-Wa,$0"); //$NON-NLS-1$ //$NON-NLS-2$
}
} else if (toolCommand.endsWith("as") && optionValue.equals(DO_NOT_LINK_FLAG)) { //$NON-NLS-1$
// if GNU "as" is called directly and the default assembler flags have
// not been overridden we remove the "-c" flag
return ""; //$NON-NLS-1$
}
}
} catch (BuildException | CdtVariableException e) {
Platform.getLog(getClass()).log(Status.error("Error generating GNU assembler command", e)); //$NON-NLS-1$
}
return null; // fallback to default command generator
}

private static String getToolCommand(IOption option, IVariableSubstitutor macroSubstitutor) {
// the option holder may be a super class of the assembler tool so we must
// locate the tool from the build configuration to obtain the correct tool command
IConfiguration config = getConfiguration(macroSubstitutor);
if (config != null) {
String optionHolderId = option.getOptionHolder().getId();
ITool[] tools = config.getToolsBySuperClassId(optionHolderId);
if (1 == tools.length) {
return tools[0].getToolCommand();
}
}
return null;
}

private static IConfiguration getConfiguration(IVariableSubstitutor macroSubstitutor) {
if (macroSubstitutor instanceof BuildfileMacroSubstitutor bms) { // case ToolSettingsPrefStore
return bms.getConfiguration();
} else if (macroSubstitutor instanceof FileMacroExplicitSubstitutor fmes) { // case BuildStep
return fmes.getConfiguration();
}
return null;
}

}
2 changes: 1 addition & 1 deletion core/org.eclipse.cdt.core/plugin.xml
Original file line number Diff line number Diff line change
Expand Up @@ -625,7 +625,7 @@
<!-- declares a content type for ASM Source files -->
<content-type id="asmSource" name="%asmSourceName"
base-type="org.eclipse.core.runtime.text"
file-extensions="S,s,asm,ASM"
file-extensions="S,s,sx,asm,ASM"
priority="high"/>
</extension>

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