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NameFinder.java (blacklist): New static field.

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2006-05-11  Bryce McKinlay  <mckinlay@redhat.com>

	* gnu/gcj/runtime/NameFinder.java (blacklist): New static field.
	(lookup): If addr2line fails to find an address, flag the binary as
	having no debug info and avoid calling addr2line on it again.

From-SVN: r113711
This commit is contained in:
Bryce McKinlay 2006-05-11 20:53:04 +00:00 committed by Bryce McKinlay
parent 1dbf8c2405
commit 64c9036718
2 changed files with 20 additions and 1 deletions
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6
libjava/ChangeLog
View File

@ -1,3 +1,9 @@
2006-05-11 Bryce McKinlay <mckinlay@redhat.com>
* gnu/gcj/runtime/NameFinder.java (blacklist): New static field.
(lookup): If addr2line fails to find an address, flag the binary as
having no debug info and avoid calling addr2line on it again.
2006-05-11 David Daney <ddaney@avtrex.com>
* testsuite/libjava.compile/PR20418.java: New.

15
libjava/gnu/gcj/runtime/NameFinder.java
View File

@ -20,8 +20,11 @@ import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.IOException;
import java.io.File;
import java.util.Collections;
import java.util.Iterator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
/**
@ -54,6 +57,10 @@ public class NameFinder
private String sourceFile;
private int lineNum;
private HashMap procs = new HashMap();
/**
* Set of binary files that addr2line should not be called on.
*/
private static Set blacklist = Collections.synchronizedSet(new HashSet());
private static final boolean use_addr2line
= Boolean.valueOf(System.getProperty
@ -150,7 +157,7 @@ public class NameFinder
sourceFile = null;
lineNum = -1;
if (! use_addr2line)
if (! use_addr2line || blacklist.contains(file))
return;
Addr2Line addr2line = (Addr2Line) procs.get(file);
if (addr2line == null)
@ -179,6 +186,12 @@ public class NameFinder
String lineNumStr = result.substring(split + 1, result.length());
lineNum = Integer.parseInt (lineNumStr);
}
else
{
/* This binary has no debug info (assuming addr was valid).
Avoid repeat addr2line invocations. */
blacklist.add(binaryFile);
}
}
catch (IOException ioe)
{