Strace allows
strace -e trace=$some_class
to specify a class of system calls to trace.
E.g.,
strace -e trace=file
should trace all file-related system calls.
How can I find out which these are exactly? I'd like to get the full list of the system calls that belong to the file class.
I did a dig into the source code strace 4.9 and found this:
{ 3, TD|TF, sys_open, "open" }, /* 5 */
{ 2, TD|TF, sys_creat, "creat" }, /* 8 */
{ 2, TF, sys_link, "link" }, /* 9 */
{ 1, TF, sys_unlink, "unlink" }, /* 10 */
{ 3, TF|TP|SE|SI, sys_execve, "execve" }, /* 11 */
{ 1, TF, sys_chdir, "chdir" }, /* 12 */
{ 3, TF, sys_mknod, "mknod" }, /* 14 */
{ 2, TF, sys_chmod, "chmod" }, /* 15 */
{ 3, TF, sys_chown, "lchown" }, /* 16 */
{ 2, TF, sys_oldstat, "oldstat" }, /* 18 */
{ 5, TF, sys_mount, "mount" }, /* 21 */
{ 1, TF, sys_umount, "oldumount" }, /* 22 */
{ 2, TF, sys_utime, "utime" }, /* 30 */
{ 2, TF, sys_access, "access" }, /* 33 */
{ 2, TF, sys_rename, "rename" }, /* 38 */
{ 2, TF, sys_mkdir, "mkdir" }, /* 39 */
{ 1, TF, sys_rmdir, "rmdir" }, /* 40 */
{ 1, TF, sys_acct, "acct" }, /* 51 */
{ 2, TF, sys_umount2, "umount" }, /* 52 */
{ 1, TF, sys_chroot, "chroot" }, /* 61 */
{ 2, TF, sys_symlink, "symlink" }, /* 83 */
{ 2, TF, sys_oldlstat, "oldlstat" }, /* 84 */
{ 3, TF, sys_readlink, "readlink" }, /* 85 */
{ 1, TF, sys_uselib, "uselib" }, /* 86 */
{ 2, TF, sys_swapon, "swapon" }, /* 87 */
{ 2, TF, sys_truncate, "truncate" }, /* 92 */
{ 2, TF, sys_statfs, "statfs" }, /* 99 */
{ 2, TF, sys_stat, "stat" }, /* 106 */
{ 2, TF, sys_lstat, "lstat" }, /* 107 */
{ 1, TF, sys_swapoff, "swapoff" }, /* 115 */
{ 4, TF, sys_quotactl, "quotactl" }, /* 131 */
{ 3, TF, sys_chown, "chown" }, /* 182 */
{ 2, TF, sys_getcwd, "getcwd" }, /* 183 */
{ 3, TF, sys_truncate64, "truncate64" }, /* 193 */
{ 2, TF, sys_stat64, "stat64" }, /* 195 */
{ 2, TF, sys_lstat64, "lstat64" }, /* 196 */
{ 3, TF, sys_chown, "lchown32" }, /* 198 */
{ 3, TF, sys_chown, "chown32" }, /* 212 */
{ 2, TF, sys_pivotroot, "pivot_root" }, /* 217 */
{ 5, TF, sys_setxattr, "setxattr" }, /* 226 */
{ 5, TF, sys_setxattr, "lsetxattr" }, /* 227 */
{ 4, TF, sys_getxattr, "getxattr" }, /* 229 */
{ 4, TF, sys_getxattr, "lgetxattr" }, /* 230 */
{ 3, TF, sys_listxattr, "listxattr" }, /* 232 */
{ 3, TF, sys_listxattr, "llistxattr" }, /* 233 */
{ 2, TF, sys_removexattr, "removexattr" }, /* 235 */
{ 2, TF, sys_removexattr, "lremovexattr" }, /* 236 */
{ 3, TF, sys_statfs64, "statfs64" }, /* 268 */
{ 2, TF, sys_utimes, "utimes" }, /* 271 */
{ 4, TD|TF, sys_openat, "openat" }, /* 295 */
{ 3, TD|TF, sys_mkdirat, "mkdirat" }, /* 296 */
{ 4, TD|TF, sys_mknodat, "mknodat" }, /* 297 */
{ 5, TD|TF, sys_fchownat, "fchownat" }, /* 298 */
{ 3, TD|TF, sys_futimesat, "futimesat" }, /* 299 */
{ 4, TD|TF, sys_newfstatat, "fstatat64" }, /* 300 */
{ 3, TD|TF, sys_unlinkat, "unlinkat" }, /* 301 */
{ 4, TD|TF, sys_renameat, "renameat" }, /* 302 */
{ 5, TD|TF, sys_linkat, "linkat" }, /* 303 */
{ 3, TD|TF, sys_symlinkat, "symlinkat" }, /* 304 */
{ 4, TD|TF, sys_readlinkat, "readlinkat" }, /* 305 */
{ 3, TD|TF, sys_fchmodat, "fchmodat" }, /* 306 */
{ 3, TD|TF, sys_faccessat, "faccessat" }, /* 307 */
{ 4, TD|TF, sys_utimensat, "utimensat" }, /* 320 */
{ 6, TD|TF, sys_fanotify_mark, "fanotify_mark" }, /* 339 */
{ 5, TD|TF, sys_name_to_handle_at, "name_to_handle_at"}, /* 341 */
{ 5, TD|TF, sys_renameat2, "renameat2" }, /* 353 */
TF stands for file related class of system calls used by strace.
Note that this example list is for i386 architecture. The list might be different for other platforms.
And long names for classes:
/* Define these shorthand notations to simplify the syscallent files. */
#define TD TRACE_DESC
#define TF TRACE_FILE
#define TI TRACE_IPC
#define TN TRACE_NETWORK
#define TP TRACE_PROCESS
#define TS TRACE_SIGNAL
#define TM TRACE_MEMORY
#define NF SYSCALL_NEVER_FAILS
#define MA MAX_ARGS
#define SI STACKTRACE_INVALIDATE_CACHE
#define SE STACKTRACE_CAPTURE_ON_ENTER
open, openat, stat, lstat, fstatat, mkdir, mkdirat, unlink, unlinkat, etc.. If I can extract it from strace or it source, the better. So far I've been having difficulties finding it.