int isn't big enough to hold a FILE* / DIR* on some systems, this causes
segfaults in calls that try to use the resulting FILE* / DIR*:
TESTSUITE: ERR: 'testsuite_rootfs_fopen' [1176160] terminated by signal 11 (Segmentation fault)
TESTSUITE: ERR: FAILED: testsuite_rootfs_fopen
FAIL: testsuite/test-testsuite
...
TESTSUITE: ERR: 'loaded_1' [1176166] terminated by signal 11 (Segmentation fault)
TESTSUITE: ERR: FAILED: loaded_1
FAIL: testsuite/test-loaded
...
TESTSUITE: ERR: 'from_alias' [1176181] terminated by signal 11 (Segmentation fault)
TESTSUITE: ERR: FAILED: from_alias
FAIL: testsuite/test-new-module
For reference on my system:
sizeof(int) = 4
sizeof(long) = 8
sizeof(FILE*) = 8
sizeof(DIR*) = 8
Add trap to stat(): we need to trap other functions too, depending on
stat.h, the function from glibc that is actually called may be stat64 or
__xstat() too.
