I noticed this because alpha was broken due to the recent commit commit
bdc807871d58285737d50dc6163d0feb72cb0dc2 ("avoid overflows in
kernel/time.c"). Most arches do something like this in their
asm/param.h:
#ifdef __KERNEL__
# define HZ CONFIG_HZ
#else
# define HZ 100
#endif
A few arches though (namely alpha/h8300/um/v850/xtensa) either do no set
HZ at all for !__KERNEL__, or they set it wrongly. This should bring all
arches in line by setting up HZ for userspace.
Without this currently perl 5.10 doesn't build on alpha:
perl.c: In function 'perl_construct':
perl.c:388: error: 'CONFIG_HZ' undeclared (first use in this function)
-> http://buildd.debian.org/fetch.cgi?pkg=perl;ver=5.10.0-10;arch=alpha;stamp=
1210252894
Signed-off-by: Mike Frysinger <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: maximilian attems <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
[ HZ on alpha is 1024 for historical reasons. - Linus ]
Signed-off-by: Linus Torvalds <[email protected]>
hardware ignores reprogramming. We also need userland buy-in to the
change in HZ, since this is visible in the wait4 resources etc. */
+#ifdef __KERNEL__
#define HZ CONFIG_HZ
#define USER_HZ HZ
+#else
+#define HZ 1024
+#endif
#define EXEC_PAGESIZE 8192
#ifndef _H8300_PARAM_H
#define _H8300_PARAM_H
-
-#ifndef HZ
-#define HZ CONFIG_HZ
-#endif
-
#ifdef __KERNEL__
+#define HZ CONFIG_HZ
#define USER_HZ HZ
#define CLOCKS_PER_SEC (USER_HZ)
+#else
+#define HZ 100
#endif
#define EXEC_PAGESIZE 4096
#define HZ CONFIG_HZ
#define USER_HZ 100 /* .. some user interfaces are in "ticks" */
#define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
+#else
+#define HZ 100
#endif
#endif
# define HZ CONFIG_HZ
# define USER_HZ 100
# define CLOCKS_PER_SEC USER_HZ
+#else
+# define HZ 100
#endif
#endif /* __V850_PARAM_H__ */
# define HZ CONFIG_HZ /* internal timer frequency */
# define USER_HZ 100 /* for user interfaces in "ticks" */
# define CLOCKS_PER_SEC (USER_HZ) /* frequnzy at which times() counts */
+#else
+# define HZ 100
#endif
#define EXEC_PAGESIZE 4096