The notable changes since the last public release (25th Oct build) are: - Fixed a problem with dllexport and Seamonkey (20081031 build) - Fixed problem with c++ exceptions (20081105 build) - Enabled '-O3 -march=pentium -mtune=pentium4' optimisation (20081105b build) - Fixed problem with missing 'popcount*' symbol when linking certain code (20081116 build) - Fixed problems with 'vtable for xxx' symbol missing for Seamonkey (20081116 build) Note that there are still problems relating to dllexport support and building Seamonkey & Firefox - whilst the build gets further than it used to due to the above bug fixes, the build now fails in necko.dll with a bunch (144) of errors like: U:\dev\mozilla\mozilla\obj\netwerk\base\src\neckobase_s.lib(nsBaseChan nel.o) : e rror LNK2029: "non-virtual thunk to nsHashPropertyBag::GetPropertyAsUint64(nsASt ring_internal const&, unsigned long long*)" : unresolved external Very similar to those described in http://groups.google.com/group/mozilla.dev.builds/browse_thread/thread/d28a686bef8cd8fd I'm still investigating, but thought I'd release another drop anyway :) -- Cheers, Paul. FWIW - I found some clues on the necko.dll problem.... http://sourceware.org/ml/binutils/2008-07/msg00087.html http://www.mailinglistarchive.com/gcc@gcc.gnu.org/msg23752.html http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27067 2008年7月8日 Bo Yang techrazy dot yang at gmail dot com> Hi,> I am now building Mozilla with Gcc-4.3.0 and binutils 2.18. And I> came across a strange LD error when I link some library to create a> DLL. For detail , I make a cross-compile env for Mingw32 on a Linux> machine. And there is a DLL import library, called> libxpcom_core.dll.a, which provice some symbols. In this library,> there are one class called nsHashProperytBag which multiple inherit> from some other virtual base class. And this class implements all the> virtual methods. In the libxpcom_core.dll.a, I use nm to examine what> it contain, I found it contain all the symbols. I mean, take for> example, there is a SetProperty virtual method in the> nsHashPropertyBag, then there are two symbol for this method? one is> the just the "nsHashPropertyBag::SetProperty> " and the other is "non-virtual thunk to nsHashPropertyBag::SetProperty".>> Then, I use this library to create some new DLL. I make a class> called "Test" which just inherit the nsHashPropertyBag. And I compile> the class and link it with the libxpcom_core.dll.a. But it failed, and> the errors are a bunch of "undefined reference to non-virtual thunk to> ...". I use the LD's -cref option to examine where each symbol> appears, but to my surprise, for each "non-virtual thunk to..", the> ones in the libxpcom_core.dll.a is not read at all. And I use the LD's> -M to see the symbol map, there is no "non-virtual thunks" appearing> in the memeory at all.>> And when I link directly to a DLL, this happend too. I am sure all> the __attribute__(dllimport) and export are set correctly. And the> "non-virutal thunks" are rightly in the libxpcom_core.dll.a and the> DLL. I am just wodering why LD did not read these "non-virtual thunk "> out of the library and use them to link.>> Also, I try to make a set of classes and library to reproduce this> problem. I have create an exact set of classes with the same> inheritance of Mozilla code. But, I can't reproduce the problem, it is> really annoying.>> Could you please help me? If you need more information, please tell> me. Any advice will be appreciated very much!> And after some more insight, I find something new to this problem. I compile Mozilla with gcc 3.4.2, and there is no problem. So, I copy the libxpcom_core.dll.a from the gcc 3.4.2 build to the gcc 4.3.0 build. I mean, I use the gcc 3.4.2 output libxpcom_core.dll.a to link with the gcc 4.3.0 objects with gcc 4.3.0. To my surprise it succeed. So, I think the difference between the two libxpcom_core.dll.a should be very important. And I paste them here: --- 3.4.2 2008年07月07日 20:32:17.000000000 -0700 +++ 4.3.0 2008年07月07日 20:32:26.000000000 -0700 @@ -88,9 +88,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag7ReleaseEv@4 +00000000 T __ZThn4_N17nsHashPropertyBag7ReleaseEv U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag7ReleaseEv@4 +00000000 I __imp___ZThn4_N17nsHashPropertyBag7ReleaseEv d001368.o: 00000000 i .idata4ドル @@ -98,9 +98,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag6HasKeyERK18nsAString_internalPi@12 +00000000 T __ZThn4_N17nsHashPropertyBag6HasKeyERK18nsAString_internalPi U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag6HasKeyERK18nsAString_internalPi@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag6HasKeyERK18nsAString_internalPi d001367.o: 00000000 i .idata4ドル @@ -108,9 +108,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag6AddRefEv@4 +00000000 T __ZThn4_N17nsHashPropertyBag6AddRefEv U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag6AddRefEv@4 +00000000 I __imp___ZThn4_N17nsHashPropertyBag6AddRefEv d001366.o: 00000000 i .idata4ドル @@ -118,9 +118,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag3GetERK18nsAString_internalPP10nsIVariant@12 +00000000 T __ZThn4_N17nsHashPropertyBag3GetERK18nsAString_internalPP10nsIVariant U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag3GetERK18nsAString_internalPP10nsIVariant@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag3GetERK18nsAString_internalPP10nsIVariant d001365.o: 00000000 i .idata4ドル @@ -128,9 +128,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag24SetPropertyAsAUTF8StringERK18nsAString_internalRK19nsACString_internal@12 +00000000 T __ZThn4_N17nsHashPropertyBag24SetPropertyAsAUTF8StringERK18nsAString_internalRK19nsACString_internal U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag24SetPropertyAsAUTF8StringERK18nsAString_internalRK19nsACString_internal@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag24SetPropertyAsAUTF8StringERK18nsAString_internalRK19nsACString_internal d001364.o: 00000000 i .idata4ドル @@ -138,9 +138,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag24GetPropertyAsAUTF8StringERK18nsAString_internalR19nsACString_internal@12 +00000000 T __ZThn4_N17nsHashPropertyBag24GetPropertyAsAUTF8StringERK18nsAString_internalR19nsACString_internal U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag24GetPropertyAsAUTF8StringERK18nsAString_internalR19nsACString_internal@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag24GetPropertyAsAUTF8StringERK18nsAString_internalR19nsACString_internal d001363.o: 00000000 i .idata4ドル @@ -148,9 +148,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag22SetPropertyAsInterfaceERK18nsAString_internalP11nsISupports@12 +00000000 T __ZThn4_N17nsHashPropertyBag22SetPropertyAsInterfaceERK18nsAString_internalP11nsISupports U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag22SetPropertyAsInterfaceERK18nsAString_internalP11nsISupports@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag22SetPropertyAsInterfaceERK18nsAString_internalP11nsISupports d001362.o: 00000000 i .idata4ドル @@ -158,9 +158,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag22GetPropertyAsInterfaceERK18nsAString_internalRK4nsIDPPv@16 +00000000 T __ZThn4_N17nsHashPropertyBag22GetPropertyAsInterfaceERK18nsAString_internalRK4nsIDPPv U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag22GetPropertyAsInterfaceERK18nsAString_internalRK4nsIDPPv@16 +00000000 I __imp___ZThn4_N17nsHashPropertyBag22GetPropertyAsInterfaceERK18nsAString_internalRK4nsIDPPv d001361.o: 00000000 i .idata4ドル @@ -168,9 +168,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag21SetPropertyAsACStringERK18nsAString_internalRK19nsACString_internal@12 +00000000 T __ZThn4_N17nsHashPropertyBag21SetPropertyAsACStringERK18nsAString_internalRK19nsACString_internal U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag21SetPropertyAsACStringERK18nsAString_internalRK19nsACString_internal@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag21SetPropertyAsACStringERK18nsAString_internalRK19nsACString_internal d001360.o: 00000000 i .idata4ドル @@ -178,9 +178,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag21GetPropertyAsACStringERK18nsAString_internalR19nsACString_internal@12 +00000000 T __ZThn4_N17nsHashPropertyBag21GetPropertyAsACStringERK18nsAString_internalR19nsACString_internal U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag21GetPropertyAsACStringERK18nsAString_internalR19nsACString_internal@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag21GetPropertyAsACStringERK18nsAString_internalR19nsACString_internal d001359.o: 00000000 i .idata4ドル @@ -188,9 +188,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag20SetPropertyAsAStringERK18nsAString_internalS2_@12 +00000000 T __ZThn4_N17nsHashPropertyBag20SetPropertyAsAStringERK18nsAString_internalS2_ U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag20SetPropertyAsAStringERK18nsAString_internalS2_@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag20SetPropertyAsAStringERK18nsAString_internalS2_ d001358.o: 00000000 i .idata4ドル @@ -198,9 +198,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag20GetPropertyAsAStringERK18nsAString_internalRS0_@12 +00000000 T __ZThn4_N17nsHashPropertyBag20GetPropertyAsAStringERK18nsAString_internalRS0_ U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag20GetPropertyAsAStringERK18nsAString_internalRS0_@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag20GetPropertyAsAStringERK18nsAString_internalRS0_ d001357.o: 00000000 i .idata4ドル @@ -208,9 +208,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsUint64ERK18nsAString_internaly@16 +00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsUint64ERK18nsAString_internaly U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsUint64ERK18nsAString_internaly@16 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsUint64ERK18nsAString_internaly d001356.o: 00000000 i .idata4ドル @@ -218,9 +218,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsUint32ERK18nsAString_internalj@12 +00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsUint32ERK18nsAString_internalj U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsUint32ERK18nsAString_internalj@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsUint32ERK18nsAString_internalj d001355.o: 00000000 i .idata4ドル @@ -228,9 +228,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsDoubleERK18nsAString_internald@16 +00000000 T __ZThn4_N17nsHashPropertyBag19SetPropertyAsDoubleERK18nsAString_internald U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsDoubleERK18nsAString_internald@16 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19SetPropertyAsDoubleERK18nsAString_internald d001354.o: 00000000 i .idata4ドル @@ -238,9 +238,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsUint64ERK18nsAString_internalPy@12 +00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsUint64ERK18nsAString_internalPy U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsUint64ERK18nsAString_internalPy@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsUint64ERK18nsAString_internalPy d001353.o: 00000000 i .idata4ドル @@ -248,9 +248,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsUint32ERK18nsAString_internalPj@12 +00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsUint32ERK18nsAString_internalPj U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsUint32ERK18nsAString_internalPj@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsUint32ERK18nsAString_internalPj d001352.o: 00000000 i .idata4ドル @@ -258,9 +258,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsDoubleERK18nsAString_internalPd@12 +00000000 T __ZThn4_N17nsHashPropertyBag19GetPropertyAsDoubleERK18nsAString_internalPd U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsDoubleERK18nsAString_internalPd@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag19GetPropertyAsDoubleERK18nsAString_internalPd d001351.o: 00000000 i .idata4ドル @@ -268,9 +268,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag18SetPropertyAsInt64ERK18nsAString_internalx@16 +00000000 T __ZThn4_N17nsHashPropertyBag18SetPropertyAsInt64ERK18nsAString_internalx U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag18SetPropertyAsInt64ERK18nsAString_internalx@16 +00000000 I __imp___ZThn4_N17nsHashPropertyBag18SetPropertyAsInt64ERK18nsAString_internalx d001350.o: 00000000 i .idata4ドル @@ -278,9 +278,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag18SetPropertyAsInt32ERK18nsAString_internali@12 +00000000 T __ZThn4_N17nsHashPropertyBag18SetPropertyAsInt32ERK18nsAString_internali U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag18SetPropertyAsInt32ERK18nsAString_internali@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag18SetPropertyAsInt32ERK18nsAString_internali d001349.o: 00000000 i .idata4ドル @@ -288,9 +288,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag18GetPropertyAsInt64ERK18nsAString_internalPx@12 +00000000 T __ZThn4_N17nsHashPropertyBag18GetPropertyAsInt64ERK18nsAString_internalPx U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag18GetPropertyAsInt64ERK18nsAString_internalPx@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag18GetPropertyAsInt64ERK18nsAString_internalPx d001348.o: 00000000 i .idata4ドル @@ -298,9 +298,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag18GetPropertyAsInt32ERK18nsAString_internalPi@12 +00000000 T __ZThn4_N17nsHashPropertyBag18GetPropertyAsInt32ERK18nsAString_internalPi U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag18GetPropertyAsInt32ERK18nsAString_internalPi@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag18GetPropertyAsInt32ERK18nsAString_internalPi d001347.o: 00000000 i .idata4ドル @@ -308,9 +308,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag17SetPropertyAsBoolERK18nsAString_internali@12 +00000000 T __ZThn4_N17nsHashPropertyBag17SetPropertyAsBoolERK18nsAString_internali U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag17SetPropertyAsBoolERK18nsAString_internali@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag17SetPropertyAsBoolERK18nsAString_internali d001346.o: 00000000 i .idata4ドル @@ -318,9 +318,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag17GetPropertyAsBoolERK18nsAString_internalPi@12 +00000000 T __ZThn4_N17nsHashPropertyBag17GetPropertyAsBoolERK18nsAString_internalPi U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag17GetPropertyAsBoolERK18nsAString_internalPi@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag17GetPropertyAsBoolERK18nsAString_internalPi d001345.o: 00000000 i .idata4ドル @@ -328,9 +328,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag14QueryInterfaceERK4nsIDPPv@12 +00000000 T __ZThn4_N17nsHashPropertyBag14QueryInterfaceERK4nsIDPPv U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag14QueryInterfaceERK4nsIDPPv@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag14QueryInterfaceERK4nsIDPPv d001344.o: 00000000 i .idata4ドル @@ -338,9 +338,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag13GetEnumeratorEPP19nsISimpleEnumerator@8 +00000000 T __ZThn4_N17nsHashPropertyBag13GetEnumeratorEPP19nsISimpleEnumerator U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag13GetEnumeratorEPP19nsISimpleEnumerator@8 +00000000 I __imp___ZThn4_N17nsHashPropertyBag13GetEnumeratorEPP19nsISimpleEnumerator d001343.o: 00000000 i .idata4ドル @@ -348,9 +348,9 @@ 00000000 i .idata6ドル 00000000 i .idata7ドル 00000000 t .text -00000000 T __ZThn4_N17nsHashPropertyBag11GetPropertyERK18nsAString_internalPP10nsIVariant@12 +00000000 T __ZThn4_N17nsHashPropertyBag11GetPropertyERK18nsAString_internalPP10nsIVariant U __head_xpcom_core_dll -00000000 I __imp___ZThn4_N17nsHashPropertyBag11GetPropertyERK18nsAString_internalPP10nsIVariant@12 +00000000 I __imp___ZThn4_N17nsHashPropertyBag11GetPropertyERK18nsAString_internalPP10nsIVariant d001342.o: 00000000 i .idata4ドル And the only difference between two libxpcom_core.dll.a is that there is a @xx at the one which gcc 3.4.2 produce. I don't understand why this "@xx" affect linkage. I hope my information make the problem clearly. Help please, thanks! Regards! Bo Bo Yang wrote:> And the only difference between two libxpcom_core.dll.a is that there> is a @xx at the one which gcc 3.4.2 produce. I don't understand why That @nn is the usual mangling for functions declared with the stdcall calling convention.> this "@xx" affect linkage. I hope my information make the problem It affects linkage because the callsite expects the symbol to have the correct mangling, but the compiler is emitting the symbol with the wrong name.> clearly. Help please, thanks! This is PR27067 it would seem. But that patch should be in 4.3, so I don't know why it's failing here. All I can suggest is using the MinGW releases of gcc because they contain all the extra fixes that aren't in the FSF tree yet. In any case, not a binutils issue. Brian Dessent

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