1 #!/bin/sh 2 3 # Check how ftruncate, lseek and stat family syscalls are traced. 4 5 . "${srcdir=.}/init.sh" 6 7 check_prog dd 8 check_prog find 9 check_prog grep 10 check_prog rm 11 12 umask 022 13 truncate_cmd='dd seek=46118400000 obs=1 count=0 if=/dev/null of=sample' 14 $truncate_cmd > $LOG 2>&1 || 15 { cat $LOG; framework_skip_ 'failed to create a large sparse file'; } 16 rm -f sample 17 18 $STRACE -edesc $truncate_cmd 2>&1 > /dev/null 2> $LOG && 19 LC_ALL=C grep -E -x 'ftruncate(64)?\(1, 46118400000\) += 0' $LOG > /dev/null || 20 { cat $LOG; fail_ 'strace -edesc failed to trace ftruncate/ftruncate64 properly'; } 21 22 LC_ALL=C grep -E -x 'lseek\(1, 46118400000, SEEK_CUR\) += 46118400000|_llseek\(1, 46118400000, \[46118400000\], SEEK_CUR\) += 0' $LOG > /dev/null || 23 { cat $LOG; fail_ 'strace -edesc failed to trace lseek/_llseek properly'; } 24 25 $STRACE -efile find -L sample > /dev/null 2> $LOG && 26 LC_ALL=C grep -E -x 'stat(64)?\("sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}\) += 0|(new)?fstatat(64)?\(AT_FDCWD, "sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}, 0\) += 0' $LOG > /dev/null || 27 { cat $LOG; fail_ 'strace -efile failed to trace stat/stat64 properly'; } 28 29 $STRACE -efile find sample > /dev/null 2> $LOG && 30 LC_ALL=C grep -E -x 'lstat(64)?\("sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}\) += 0|(new)?fstatat(64)?\(AT_FDCWD, "sample", \{st_mode=S_IFREG\|0644, st_size=46118400000, \.\.\.\}, AT_SYMLINK_NOFOLLOW\) += 0' $LOG > /dev/null || 31 { cat $LOG; fail_ 'strace -efile failed to trace fstatat/fstatat64 properly'; } 32 33 rm -f sample 34 35 exit 0 36
