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mckernel/test/strace/strace-bundle/stat
2017-11-25 14:35:17 +09:00

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#!/bin/sh
# Check how ftruncate, lseek and stat family syscalls are traced.
. "${srcdir=.}/init.sh"
check_strace
check_timeout
check_prog dd
check_prog find
check_prog grep
check_prog rm
umask 022
truncate_cmd='dd seek=46118400000 obs=1 count=0 if=/dev/null of=sample'
$truncate_cmd > check.log 2>&1 ||
{ cat check.log; framework_skip_ 'failed to create a large sparse file'; }
rm -f sample
$TIMEOUT $MCEXEC $STRACE -edesc $truncate_cmd 2>&1 > /dev/null 2> check.log &&
LC_ALL=C grep -E -x 'ftruncate(64)?\(1, 46118400000\) += 0' check.log > /dev/null ||
{ cat check.log; fail_ 'strace -edesc failed to trace ftruncate/ftruncate64 properly'; }
echo stat-1 OK
LC_ALL=C grep -E -x 'lseek\(1, 46118400000, SEEK_CUR\) += 46118400000|_llseek\(1, 46118400000, \[46118400000\], SEEK_CUR\) += 0' check.log > /dev/null ||
{ cat check.log; fail_ 'strace -edesc failed to trace lseek/_llseek properly'; }
echo stat-2 OK
$TIMEOUT $MCEXEC $STRACE -efile find -L sample > /dev/null 2> check.log &&
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' check.log > /dev/null ||
{ cat check.log; fail_ 'strace -efile failed to trace stat/stat64 properly'; }
echo stat-3 OK
$TIMEOUT $MCEXEC $STRACE -efile find sample > /dev/null 2> check.log &&
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' check.log > /dev/null ||
{ cat check.log; fail_ 'strace -efile failed to trace fstatat/fstatat64 properly'; }
echo stat-4 OK
rm -f sample
exit 0