#ifndef PERF_EXEC_CMD_H#define PERF_EXEC_CMD_H extern void perf_set_argv_exec_path(const char *exec_path);extern const char *perf_extract_argv0_path(const char *path);extern const char *perf_exec_path(void);extern void setup_path(void);extern const char **prepare_perf_cmd(const char **argv);extern int execv_perf_cmd(const char **argv); /* NULL terminated */extern int execl_perf_cmd(const char *cmd, ...);extern const char *system_path(const char *path); #endif /* PERF_EXEC_CMD_H */