diff options
Diffstat (limited to 'sys/compat/linux/linux_misc.c')
| -rw-r--r-- | sys/compat/linux/linux_misc.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index a9d5580..550e36d 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -2195,6 +2195,63 @@ linux_pselect6(struct thread *td, struct linux_pselect6_args *args) return (error); } +#if defined(DEBUG) || defined(KTR) +/* XXX: can be removed when every ldebug(...) and KTR stuff are removed. */ + +u_char linux_debug_map[howmany(LINUX_SYS_MAXSYSCALL, sizeof(u_char))]; + +static int +linux_debug(int syscall, int toggle, int global) +{ + + if (global) { + char c = toggle ? 0 : 0xff; + + memset(linux_debug_map, c, sizeof(linux_debug_map)); + return (0); + } + if (syscall < 0 || syscall >= LINUX_SYS_MAXSYSCALL) + return (EINVAL); + if (toggle) + clrbit(linux_debug_map, syscall); + else + setbit(linux_debug_map, syscall); + return (0); +} + +/* + * Usage: sysctl linux.debug=<syscall_nr>.<0/1> + * + * E.g.: sysctl linux.debug=21.0 + * + * As a special case, syscall "all" will apply to all syscalls globally. + */ +#define LINUX_MAX_DEBUGSTR 16 +int +linux_sysctl_debug(SYSCTL_HANDLER_ARGS) +{ + char value[LINUX_MAX_DEBUGSTR], *p; + int error, sysc, toggle; + int global = 0; + + value[0] = '\0'; + error = sysctl_handle_string(oidp, value, LINUX_MAX_DEBUGSTR, req); + if (error || req->newptr == NULL) + return (error); + for (p = value; *p != '\0' && *p != '.'; p++); + if (*p == '\0') + return (EINVAL); + *p++ = '\0'; + sysc = strtol(value, NULL, 0); + toggle = strtol(p, NULL, 0); + if (strcmp(value, "all") == 0) + global = 1; + error = linux_debug(sysc, toggle, global); + return (error); +} + +#endif /* DEBUG || KTR */ + int linux_sched_rr_get_interval(struct thread *td, struct linux_sched_rr_get_interval_args *uap) |
