$NetBSD: patch-xj,v 1.1 2010/03/16 10:59:10 tnn Exp $

NetBSD ppc xptcall support code. Originally from pkgsrc/www/mozilla.

--- mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc_netbsd.cpp.orig	2009-06-29 18:15:33.000000000 +0200
+++ mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc_netbsd.cpp
@@ -41,6 +41,7 @@
 // Implement shared vtbl methods.
 
 #include "xptcprivate.h"
+#include "xptiprivate.h"
 
 // The Linux/PPC ABI (aka PPC/SYSV ABI) passes the first 8 integral
 // parameters and the first 8 floating point parameters in registers
@@ -71,7 +72,6 @@ PrepareAndDispatch(nsXPTCStubBase* self,
 {
     nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
     nsXPTCMiniVariant* dispatchParams = NULL;
-    nsIInterfaceInfo* iface_info = NULL;
     const nsXPTMethodInfo* info;
     PRUint32 paramCount;
     PRUint32 i;
@@ -79,12 +79,7 @@ PrepareAndDispatch(nsXPTCStubBase* self,
 
     NS_ASSERTION(self,"no self");
 
-    self->GetInterfaceInfo(&iface_info);
-    NS_ASSERTION(iface_info,"no interface info");
-    if (! iface_info)
-        return NS_ERROR_UNEXPECTED;
-
-    iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
+    self->mEntry->GetMethodInfo(PRUint16(methodIndex), &info);
     NS_ASSERTION(info,"no method info");
     if (! info)
         return NS_ERROR_UNEXPECTED;
@@ -119,8 +114,10 @@ PrepareAndDispatch(nsXPTCStubBase* self,
                 if ((PRUint32) ap & 4) ap++; // doubles are 8-byte aligned on stack
                 dp->val.d = *(double*) ap;
                 ap += 2;
+#if __GXX_ABI_VERSION < 100
 		if (gpr < GPR_COUNT)
 		    gpr += 2;
+#endif
             }
             continue;
         }
@@ -130,8 +127,10 @@ PrepareAndDispatch(nsXPTCStubBase* self,
             else {
                 dp->val.f = *(float*) ap;
 		ap += 1;
+#if __GXX_ABI_VERSION < 100
 		if (gpr < GPR_COUNT)
 		    gpr += 1;
+#endif
             }
             continue;
         }
@@ -179,9 +178,9 @@ PrepareAndDispatch(nsXPTCStubBase* self,
         }
     }
 
-    result = self->CallMethod((PRUint16) methodIndex, info, dispatchParams);
-
-    NS_RELEASE(iface_info);
+    result = self->mOuter->CallMethod((PRUint16) methodIndex,
+                                      info,
+                                      dispatchParams);
 
     if (dispatchParams != paramBuffer)
         delete [] dispatchParams;
@@ -195,7 +194,9 @@ PrepareAndDispatch(nsXPTCStubBase* self,
 // however, it's quick, dirty, and'll break when the ABI changes on
 // us, which is what we want ;-).
 
-#define STUB_ENTRY(n)                                       \
+#if __GXX_ABI_VERSION < 100
+// gcc-2 version
+# define STUB_ENTRY(n)                                       \
 __asm__ (                                                   \
         ".section \".text\" \n\t"                           \
         ".align 2 \n\t"                                     \
@@ -206,6 +207,46 @@ __asm__ (                               
 	"li     11,"#n" \n\t"                               \
 	"b      SharedStub@local \n"                        \
 );
+#else
+// gcc-3 version
+//
+// As G++3 ABI contains the length of the functionname in the mangled
+// name, it is difficult to get a generic assembler mechanism like
+// in the G++ 2.95 case.
+// Create names would be like:
+// _ZN14nsXPTCStubBase5Stub1Ev
+// _ZN14nsXPTCStubBase6Stub12Ev
+// _ZN14nsXPTCStubBase7Stub123Ev
+// _ZN14nsXPTCStubBase8Stub1234Ev
+// etc.
+// Use assembler directives to get the names right...
+
+# define STUB_ENTRY(n)							\
+__asm__ (								\
+	".align	2 \n\t"							\
+	".if	"#n" < 10 \n\t"						\
+	".globl	_ZN14nsXPTCStubBase5Stub"#n"Ev \n\t"			\
+	".type	_ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n"		\
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t"					\
+									\
+	".elseif "#n" < 100 \n\t"					\
+	".globl	_ZN14nsXPTCStubBase6Stub"#n"Ev \n\t"			\
+	".type	_ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n"		\
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t"					\
+									\
+	".elseif "#n" < 1000 \n\t"					\
+	".globl	_ZN14nsXPTCStubBase7Stub"#n"Ev \n\t"			\
+	".type	_ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n"		\
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t"					\
+									\
+	".else \n\t"							\
+	".err	\"stub number "#n" >= 1000 not yet supported\"\n"	\
+	".endif \n\t"							\
+									\
+	"li	11,"#n" \n\t"						\
+	"b	SharedStub@local \n"					\
+);
+#endif
 
 #define SENTINEL_ENTRY(n)                            \
 nsresult nsXPTCStubBase::Sentinel##n()               \