sindex is the simple to use cscope-like tool based on sparse/dissect. Unlike cscope it runs after pre-processor and thus it can't index the code filtered out by ifdef's, but otoh it understands how the symbol is used and it can track the usage of struct members. To create an index for your linux kernel configuration: $ make C=2 CHECK="sindex add --" Now, to find where a definition of the pid field from the task_struct structure: $ sindex search -m def task_struct.pid (def) include/linux/sched.h 793 11 pid_t pid; default output format: SOURCE-FILE \t LINE-NUMBER \t COLUMN \t IN FUNCTION NAME \t CODE LINE To find where this field changes: $ sindex search -m w task_struct.pid (-w-) fs/exec.c 1154 6 de_thread tsk->pid = leader->pid; (-w-) kernel/fork.c 2155 3 copy_process p->pid = pid_nr(pid); To get only filenames and line number you can change output format: $ sindex search -f '%f:%l' -m w task_struct.pid fs/exec.c:1154 kernel/fork.c:2155 Current limitations: * inline functions are ignored; * enums are ignored; * unknown #include leads to a fatal error. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>