gecko sdk 1.9, link error, QueryInterfaceWithError

[CK Hsu]

Hi all,

First, if I am posting the query in the wrong place, please let me know
where I should post. Thanks in advance.

Anywya, I have run into an issue that I cannot seem to resolve

Background Info:

1) I have an extension consists of few XPCOM components. I compiling my
extension into a statically linked dll (so the user would not have to
install any other dlls to use my components). I am linking against
nspr4.lib, xpcom.lib, and xpcomglue_s.lib.

2) I am using VS2005 to build my project.

3) I am using the latest xulrunner sdk (gecko-sdk-1.9)

4) My components implement my own interfaces, plus
nsISecurityCheckedComponent, where I used "xpidl -m header" to generate the
header.

5) I am using these header files in my project:

#include "nsGenericFactory.h"

#include "nsIClassInfoImpl.h"

#include "nsICategoryManager.h"

#include "nsIServiceManager.h"

#include "nsMemory.h"

#include "nsComPtr.h"

Problem:

I get this error at link time:

error LNK2019: unresolved external symbol "public: void __thiscall
nsCOMPtr_base::assign_from_qi_with_error(class nsQueryInterfaceWithError
const &,struct nsID const &)"
(?assign_from_qi_with_error@nsCOMPtr_base@@QAEXABVnsQueryInterfaceWithError@@ABUnsID@@@Z)
referenced in function "public: __thiscall nsCOMPtr<class
nsIServiceManager>::nsCOMPtr<class nsIServiceManager>(class
nsQueryInterfaceWithError const &)"
(??0?$nsCOMPtr@VnsIServiceManager@@@@QAE@ABVnsQueryInterfaceWithError@@@Z)
DymoComponents.obj

Things I tried:

I found the function "VnsQueryInterfaceWithErr" (which is the function that
the linker cannot resolve) in xpcomglue_s.lib and saw the parameter
signatures are different. So I thought it might be because the .lib files I
am using is compiled and linked with a different compiler than the one I am
using. So I downloaded the XulRunner source and compile and built my own
.libs. When I link against the .libs I compiled, I get the same error.

This line of code is what triggered the linker to call the
QueryInterfaceWithError function:

nsCOMPtr<nsIServiceManager> servman =
do_QueryInterface((nsISupports*)aCompMgr, &rv);

But this code is from the Weblock sample I found from the tutorial on XPCOM
component. I am not sure what to do to get around calling this function...

Has anyone else run up against this issue? How did you resolve it?

Thanks.

[Benjamin Smedberg]

CK Hsu wrote:
> Hi all,
>
> First, if I am posting the query in the wrong place, please let me know
> where I should post. Thanks in advance.

This question belongs in mozilla.dev.extensions... cc'ing and setting followup.

> error LNK2019: unresolved external symbol "public: void __thiscall
> nsCOMPtr_base::assign_from_qi_with_error(class nsQueryInterfaceWithError
> const &,struct nsID const &)"
> (?assign_from_qi_with_error@nsCOMPtr_base@@QAEXABVnsQueryInterfaceWithError@@ABUnsID@@@Z)
> referenced in function "public: __thiscall nsCOMPtr<class
> nsIServiceManager>::nsCOMPtr<class nsIServiceManager>(class
> nsQueryInterfaceWithError const &)"
> (??0?$nsCOMPtr@VnsIServiceManager@@@@QAE@ABVnsQueryInterfaceWithError@@@Z)
> DymoComponents.obj
>
> Things I tried:
>
> I found the function "VnsQueryInterfaceWithErr" (which is the function that
> the linker cannot resolve) in xpcomglue_s.lib and saw the parameter
> signatures are different.

Are you sure you're looking for the right symbol? It appears to be looking
for and missing

?assign_from_qi_with_error@nsCOMPtr_base@@QAEXABVnsQueryInterfaceWithError@@ABUnsID@@@Z

You say you found a similar symbol but with different parameter
signatures... can you list the symbol that you found, and exactly how it is
different?

--BDS