helpGnuTLS - Support: sr #108623, gnutls for Windows port.

 
 

sr #108623: gnutls for Windows port.

Submitted by:  Bjørn Christensen <cybear>
Submitted on:  Wed 30 Jul 2014 01:14:01 PM UTC
 
Category:  Core library Priority:  5 - Normal
Severity:  3 - Normal Status:  Done
Privacy:  Public Assigned to:  None
Open/Closed:  Closed Operating System:  None
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Thu 31 Jul 2014 10:20:08 AM UTC, comment #1: 

Unfortunately changing the symbol to a function would require an ABI bump. Would a patch like the following address your issue?

https://gitorious.org/gnutls/gnutls/commit/8e4df216fee26e346a46817d4af64d85a21e40f6

Nikos Mavrogiannopoulos <nmav>
Project Administrator
Wed 30 Jul 2014 01:14:01 PM UTC, original submission:  

The declaration of the gnutls memory function casuses problems.

It is all the memory function but I will try and describe the problem with gnutls_free.

gnutls_free is declared as follows:
typedef void (*gnutls_free_function) (void *);
extern gnutls_free_function gnutls_free;

when cross-compiled and made to a windows .lib file _fnutls_free is not found in the library because the declaration misses a __declspec(dllimport).

typedef void (*gnutls_free_function) (void *);
extern __declspec(dllimport) gnutls_free_function gnutls_free;

this is one solution but since the headers is platform independant right now, a better solution could be to convert the gnutls_free to a real function and have a placeholder for the gnutls_free_function_pointer that it could call.
void gnutls_free(void *p)
{
   (*gnutls_free_function_pointer)(p);
}

all the function calls in the gnutls library is ok since for functions the __declspec(dllimport) is implicit.

Bjørn Christensen <cybear>

 

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2014-09-20 nmav StatusNone => Done
        Open/ClosedOpen => Closed

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