/* * Call/Return flags. * * CALL_RETURN_NO_CALL: 'return' but no matching 'call' * CALL_RETURN_NO_RETURN: 'call' but no matching 'return' * CALL_RETURN_NON_CALL: a branch but not a 'call' to the start of a different * symbol
*/ enum {
CALL_RETURN_NO_CALL = 1 << 0,
CALL_RETURN_NO_RETURN = 1 << 1,
CALL_RETURN_NON_CALL = 1 << 2,
};
/** * struct call_return - paired call/return information. * @thread: thread in which call/return occurred * @comm: comm in which call/return occurred * @cp: call path * @call_time: timestamp of call (if known) * @return_time: timestamp of return (if known) * @branch_count: number of branches seen between call and return * @insn_count: approx. number of instructions between call and return * @cyc_count: approx. number of cycles between call and return * @call_ref: external reference to 'call' sample (e.g. db_id) * @return_ref: external reference to 'return' sample (e.g. db_id) * @db_id: id used for db-export * @parent_db_id: id of parent call used for db-export * @flags: Call/Return flags
*/ struct call_return { struct thread *thread; struct comm *comm; struct call_path *cp;
u64 call_time;
u64 return_time;
u64 branch_count;
u64 insn_count;
u64 cyc_count;
u64 call_ref;
u64 return_ref;
u64 db_id;
u64 parent_db_id;
u32 flags;
};
/** * struct call_return_processor - provides a call-back to consume call-return * information. * @cpr: call path root * @process: call-back that accepts call/return information * @data: anonymous data for call-back
*/ struct call_return_processor { struct call_path_root *cpr; int (*process)(struct call_return *cr, u64 *parent_db_id, void *data); void *data;
};
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