Description JP 2005-05-18 02:01:12 EDT

Hi,

Modules view is not displaying properly while debugging on HP-UX. The root 
causes are

1) The format of shared library information provided by HP-UX gdb is different 
from gdb on Windows/Linux
2) On Windows/Linux, the shared library information has one line entry for 
each library. But on HP-UX, for each library, there is a two line entry.

eg.

Result of "info sharedlibrary" command on Windows
--------------------------------------------------

DLL Name                                             Load Address

ntdll.dll                                    77f51000
/cygdrive/c/WINNT/system32/kernel32.dll      77e61000
/usr/bin/cygwin1.dll                         61001000
/cygdrive/c/WINNT/system32/advapi32.dll      77dd1000
/cygdrive/c/WINNT/system32/rpcrt4.dll        78001000
/cygdrive/c/WINNT/System32/secur32.dll       76f91000
/cygdrive/c/WINNT/system32/user32.dll        77d41000
/cygdrive/c/WINNT/system32/gdi32.dll         7f001000


Result of "info sharedlibrary" on HP-UX
---------------------------------------

Shared Object Libraries
        tstart              tend              dstart              dend         

/usr/lib/hpux32/dld.so
 0x200000007ef80000 0x200000007effa130 0x200000007ef79000 0x200000007ef7f748

/usr/lib/hpux32/libstd_v2.so.1
 0x200000007ede1000 0x200000007ef76bf0 0x200000007edd0000 0x200000007edddd78

/usr/lib/hpux32/libCsup.so.1
 0x200000007ed83000 0x200000007edcbee0 0x200000007ed7c000 0x200000007ed82ce8

/usr/lib/hpux32/libm.so.1
 0x200000007ec19000 0x200000007ed7b4f0 0x200000007ec15000 0x200000007ec18818

/usr/lib/hpux32/libunwind.so.1
 0x200000007ebcb000 0x200000007ec14800 0x200000007ebc9000 0x200000007ebca2e0

/usr/lib/hpux32/libc.so.1
 0x200000007e94b000 0x200000007ebc8200 0x200000007e938000 0x200000007e9490f8

/usr/lib/hpux32/libdl.so.1
 0x200000007e932000 0x200000007e9351f0 0x200000007edde000 0x200000007edde080

/usr/lib/hpux32/libuca.so.1
 0x200000007e928000 0x200000007e92faf0 0x200000007e94a000 0x200000007e94a150


To make Modules view to work, I have added a method called 'parseHPUXShared()' 
to parse gdb output according to HP_UX format. 
I have also inserted a code segment for merging two lines into  a single line 
entry and calling parseHPUXShared() method if the header starts with "Shared 
Object Libraries" at parseShared(). I have listed both code below


	void parseShared(String str, List aList) 
	{
		if (!hasProcessHeader) {
			// Process the header and choose a type.
			if (str.startsWith("DLL")) { //$NON-NLS-1$
				isUnixFormat = false;
			}
			// FIX : HP-UX shared library view
			else if(str.startsWith("Shared Object Libraries"))
			
			{
              			// it is hpux format
				isHPUXFormat = true;
				
			}
			//end fix
			hasProcessHeader = true;
		}
		// FIX : HP-UX shared library view
		else if (isHPUXFormat) 
		{
			if(str.startsWith("0x"))
			{
               			//merging...
				mergestr +=" "+str;
				parseHPUXShared(mergestr, aList);
				return;
			}
			else if(str.startsWith("tstart"))
			{
				return;
			}
			else
			{
               			// new shareed library entry...;
				mergestr = new String(str);
				return;
			}
			
		}
		// end FIX
		else if (isUnixFormat) {
			parseUnixShared(str, aList);
		} else {
			parseWinShared(str, aList);
		}
	}
	



	// FIX : HP-UX shared library view
	void parseHPUXShared(String str, List aList) {
		if (str.length() > 0) {
			// Pass the header
			int index = -1;
			String from = ""; //$NON-NLS-1$
			String to = ""; //$NON-NLS-1$
			boolean syms = false;
			String name = ""; //$NON-NLS-1$

			for (int i = 0;(index = str.indexOf(' ')) != -1 || i < 
3; i++) 
			{
				if (index == -1) {
					index = 0;
				}

				String sub = str.substring(0,index).trim();
				str= str.substring(index).trim();
				switch (i) {
					case 0 :
						name = sub;
						break;
					case 2 : // second column is "To"
							to = sub;
						break;
					case 1 : // first column is "From"
							from = sub;
						break;
				}
			}
			syms=true;
			if (name.length() > 0) {
				MIShared s = new MIShared(from, to, syms, 
name);
				aList.add(s);
			}
		}
	} // end of fix	

Can you please look at this problem ? I have also attached my patch.

Thanks,
JP