diff options
Diffstat (limited to 'runtime/string.h')
| -rw-r--r-- | runtime/string.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/runtime/string.h b/runtime/string.h index dc7d6592..fa4be125 100644 --- a/runtime/string.h +++ b/runtime/string.h @@ -16,4 +16,21 @@ static char _stp_stdout[] = "_stdout_"; void _stp_vsprintf (char *str, const char *fmt, va_list args); void _stp_text_str(char *out, char *in, int len, int quoted, int user); +/* + * Powerpc uses a paranoid user address check in __get_user() which + * spews warnings "BUG: Sleeping function...." when DEBUG_SPINLOCK_SLEEP + * is enabled. With 2.6.21 and above, a newer variant __get_user_inatomic + * is provided without the paranoid check. Use it if available, fall back + * to __get_user() if not. Other archs can use __get_user() as is + */ +#ifdef __powerpc64__ +#ifdef __get_user_inatomic(x, ptr) +#define __stp_get_user(x, ptr) __get_user_inatomic(x, ptr) +#else /* __get_user_inatomic */ +#define __stp_get_user(x, ptr) __get_user(x, ptr) +#endif /* __get_user_inatomic */ +#else /* __powerpc64__ */ +#define __stp_get_user(x, ptr) __get_user(x, ptr) +#endif /* __powerpc64__ */ + #endif /* _STRING_H_ */ |