------- 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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