A module that hooks into the debugger to provide it with a demangle() so at least when using C++ in the kernel stack crawls are meaningful.

It does its job by using part of libsupc++, with fake malloc and friends to make sure it won't double fault.
Works here, but cp-demangle must be extracted by hand from the lib, can't get the rule to work as I want, Ingo ?
Maybe using it directly without malloc hack would be ok with 16KB buffer, but I'm not sure of that.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26581 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/debug/debug.cpp

@@ -89,6 +89,8 @@ static const uint32 kMaxDebuggerModules = sizeof(sDebuggerModules)
 static char sLineBuffer[HISTORY_SIZE][LINE_BUFFER_SIZE] = { "", };
 static int32 sCurrentLine = 0;
 
+static const char *(*sDemangleHook)(const char *) = NULL;
+
 #define distance(a, b) ((a) < (b) ? (b) - (a) : (a) - (b))
 
 
@@ -1383,3 +1385,20 @@ dump_block(const char *buffer, int size, const char *prefix)
 		dprintf("\n");
 	}
 }
+
+
+extern void
+debug_set_demangle_hook(const char *(*hook)(const char *))
+{
+	sDemangleHook = hook;
+}
+
+
+extern const char *
+debug_demangle(const char *sym)
+{
+	if (sDemangleHook)
+		return sDemangleHook(sym);
+	return sym;
+}
+