[Mldonkey-users] [patch #7319] EDK: Fix CryptoPP on mips64 abi n32

[spiralvoice]

URL:
  <http://savannah.nongnu.org/patch/?7319>

                 Summary: EDK: Fix CryptoPP on mips64 abi n32
                 Project: mldonkey, a multi-networks file-sharing client
            Submitted by: viric
            Submitted on: So 19 Sep 2010 12:10:54 CEST
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: None
        Operating System: None
         Binaries Origin: None
                CPU type: None

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Details:

Hello,

I had problems building mldonkey for mips64, and I came up with a patch I
attach for review. The problem was in the CryptoPP.cc file, related to
multiplication of double words.
Since gcc 4.4, the asm constraint 'h' is not there, and I was using gcc
4.5.1.

Once I could build mldonkey, I tried to run it, and some division code in
CryptoPP.cc failed an assertion:

mlnet: src/utils/lib/CryptoPP.cc:3745: void CryptoPP::Divide(CryptoPP::word*,
CryptoPP::word*, CryptoPP::word*, const CryptoPP::word*, unsigned int, const
CryptoPP::word*, unsigned int): Assertion `shiftBits < WORD_BITS' failed.


The gdb session:
(gdb) f 3
#3  0x100983cc in CryptoPP::Divide (R=0x1022ba30, Q=0x1022bac0, T=0x1022bae8,
A=0x1022ba78, 
    NA=6, B=0x1022b910, NB=4) at src/utils/lib/CryptoPP.cc:3745
3745            assert(shiftBits < WORD_BITS);
(gdb) print shiftBits 
$1 = 64
(gdb) print WORD_BITS 
$2 = 64


Any idea of what can be wrong in that code? I can debug further if you need.




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