Follow-up Comment #4, bug #18481 (project freeciv):
[12:12:ttypl][longturn@spock:~:4]$ cat a.c
#include <stdio.h>
int
main()
{
printf("%d %dn", sizeof(int), sizeof(size_t));
return 0;
}
[12:12:ttypl][longturn@spock:~:5]$ gcc a.c -o a && ./a
4 8
Here we go, I believe this is the source of the SIGBUS. 2.2 works fine on
sparc64, here is what changed:
2.3:
./utility/registry.c:1952: int *secfile_lookup_int_vec(const struct
section_file *secfile,
./utility/registry.c:1953: size_t *dim, const
char *path, ...)
...
3230 food_ini = secfile_lookup_int_vec(file, (size_t *)
3231 &game.info.granary_num_inis,
3232 "civstyle.granary_food_ini");
2.2:
./utility/registry.c:1606: int *secfile_lookup_int_vec(struct section_file
*my_section_file,
./utility/registry.c:1607: int *dimen, const char
*path, ...)
...
3082 food_ini = secfile_lookup_int_vec(&file,
&game.info.granary_num_inis,
3083 "civstyle.granary_food_ini");
The function secfile_lookup_int_vec() is now broken (it was good in 2.2).
I think this is what is called "strict alignment". n-byte data types must be
n-byte aligned. game.info.granary_num_inis is 4-byte aligned, and when cast to
a 8-byte data type causes the SIGBUS.
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