[Bug ld/5105] x86_64-pc-mingw32 native ld.exe randomly failed to read the archive file

[drangon dot mail at gmail dot com]

------- Additional Comments From drangon dot mail at gmail dot com  2007-10-04 
15:50 -------
I add some printf in binutils/bfd/archive.c to print out some value.

----------------------------------------------------------------------
380   if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof
(struct ar_hdr))
 381     {
 382       if (bfd_get_error () != bfd_error_system_call)
 383     bfd_set_error (bfd_error_no_more_archived_files);
 384       return NULL;
 385     }
 386   printf( "-4- hdr.ar_mag [%s], ARFMAG [%s], mag [%s]\n",
hdr.ar_fmag, ARFMAG, mag == NULL ? "(null)" : mag );
 387   if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
 388       && (mag == NULL
 389       || strncmp (hdr.ar_fmag, mag, 2) != 0))
 390     {
 391       bfd_set_error (bfd_error_malformed_archive);
 392       return NULL;
 393     }
 394
 395   errno = 0;
 396   parsed_size = strtol (hdr.ar_size, NULL, 10);
 397   printf( "-4- hdr.ar_size [%s], parsed_size %d, ar_name [%s]\n",
hdr.ar_size, (int)parsed_size, hdr.ar_name );
 398   if (errno != 0)
 399     {
 400       bfd_set_error (bfd_error_malformed_archive);
 401       return NULL;
 402     }
---------------------------------------------------------------

and from the log, the first some times, it reads the archive successfully :

----------------------------------------------------------
*** [bfd_generic_archive_p:644] begin read file
[..\target\x86_64-pc-mingw32\lib\libmingw32.a]
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [1758      `
], parsed_size 1758, ar_name [/               1191037575  0     0
0       1758      `
]
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [22        `
], parsed_size 22, ar_name [//
    22        `
]
-2- slurp ok
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [22        `
], parsed_size 22, ar_name [//
    22        `
]
-3- extended ok
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [2985      `
], parsed_size 2985, ar_name [crt0_c.o/       1191037555  500   501
100664  2985      `
]
*** has map and first object failed.
-----------------------------------------------------------

but the last some times, it reads failed

------------------------------------------------------------
*** [bfd_generic_archive_p:644] begin read file
[..\target\x86_64-pc-mingw32\lib\libmingw32.a]
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [1758      `
], parsed_size 1758, ar_name [/               1191037575  0     0
0       1758      `
]
-4- hdr.ar_mag [`
], ARFMAG [`
], mag [(null)]
-4- hdr.ar_size [22        `
], parsed_size 22, ar_name [//
    22        `
]
-2- slurp ok
-4- hdr.ar_mag [ `], ARFMAG [`
], mag [(null)]
-3- namedata is NULL
*** slurp or extend failed
----------------------------------------------------------

the hdr head reads " hdr.ar_mag [ `] ", it should be "`\012",
I don't understand why this value suddenly goes wrong ...

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5105

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