RE: ARM static lib
Oops forgot to write that with the extern stuff it works
-Message d'origine-
De : [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] De la part de Chris Apers
Envoyé : vendredi 7 janvier 2005 10:02
À : Palm Developer Forum
Objet : RE: ARM static lib
No, I'm compiling the lib as C to use with C code
-Message d'origine-
De : [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] De la part de Ben Combee
Envoyé : jeudi 6 janvier 2005 00:38
À : Palm Developer Forum
Objet : Re: ARM static lib
At 02:19 PM 1/5/2005, you wrote:
>Hi,
>
>I'm trying to compile an ARM static library (fdlibm), but if i don't check
>the force C++ compilation box
>the function within are not found when i try to use this lib in a project.
>
>Is this normal ? any config i missed ?
ARM name mangling... if you compiled the library as C code, not C++ code,
then the prototypes for calling the library from your C++ code need to be
surrounded by an
extern "C" {
}
block to tell the compiler that these are C functions.
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RE: ARM static lib
No, I'm compiling the lib as C to use with C code
-Message d'origine-
De : [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] De la part de Ben Combee
Envoyé : jeudi 6 janvier 2005 00:38
À : Palm Developer Forum
Objet : Re: ARM static lib
At 02:19 PM 1/5/2005, you wrote:
>Hi,
>
>I'm trying to compile an ARM static library (fdlibm), but if i don't check
>the force C++ compilation box
>the function within are not found when i try to use this lib in a project.
>
>Is this normal ? any config i missed ?
ARM name mangling... if you compiled the library as C code, not C++ code,
then the prototypes for calling the library from your C++ code need to be
surrounded by an
extern "C" {
}
block to tell the compiler that these are C functions.
--
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see http://www.palmos.com/dev/support/forums/
Re: ARM static lib
Ben Combee wrote:
> At 02:19 PM 1/5/2005, you wrote:
>> I'm trying to compile an ARM static library (fdlibm), but if i don't
>> check
>> the force C++ compilation box
>> the function within are not found when i try to use this lib in a
>> project.
>>
>> Is this normal ? any config i missed ?
>
>
> ARM name mangling... if you compiled the library as C code, not C++
> code, then the prototypes for calling the library from your C++ code
> need to be surrounded by an
>
>extern "C" {
>}
>
> block to tell the compiler that these are C functions.
... and a common way to do this is to have one .h file that contains
all your C-style stuff in it, and #include that .h file from both
C (library implementation) and C++ code (client) code. The way
you accomplish this is to put
#ifdef __cplusplus
extern "C" {
#endif
before all your function prototypes, and put
#ifdef __cplusplus
} // extern "C"
#endif
after the prototypes.
Then, when building your library as C source, the compiler sees
no "extern" or anything, but when using the .h file from C++, the
prototypes are surrounded with the appropriate stuff.
- Logan
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Re: ARM static lib
At 02:19 PM 1/5/2005, you wrote:
Hi,
I'm trying to compile an ARM static library (fdlibm), but if i don't check
the force C++ compilation box
the function within are not found when i try to use this lib in a project.
Is this normal ? any config i missed ?
ARM name mangling... if you compiled the library as C code, not C++ code,
then the prototypes for calling the library from your C++ code need to be
surrounded by an
extern "C" {
}
block to tell the compiler that these are C functions.
-- Ben Combee, Technical Lead, Developer Services, PalmSource, Inc.
"Combee on Palm OS" weblog: http://palmos.combee.net/
Developer Forum Archives: http://news.palmos.com/read/all_forums/
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Re: ARM static lib
I guess the naming of the functions inside the object files and the library are different between of C++ and C. There must be soem tools which show you the exported names in the object and the library. Regards Henk Chris Apers wrote: Hi, I'm trying to compile an ARM static library (fdlibm), but if i don't check the force C++ compilation box the function within are not found when i try to use this lib in a project. Is this normal ? any config i missed ? thanks alot Chris -- - Henk Jonas Palm OS ® certified developer [EMAIL PROTECTED] www.metaviewsoft.de - -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
