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authorBernhard Reutner-Fischer2006-05-31 10:04:03 +0000
committerBernhard Reutner-Fischer2006-05-31 10:04:03 +0000
commit507cd755a44628ced60acfa568b402cdf2f5547b (patch)
treec1f8e40d4ff2d42d9fe8bb429873a31b6afc11d2 /include
parent3252b625b751a2de794ae4f8e48b80b4ff09dfdc (diff)
downloadbusybox-507cd755a44628ced60acfa568b402cdf2f5547b.zip
busybox-507cd755a44628ced60acfa568b402cdf2f5547b.tar.gz
- conditionally define BB_NOMMU
Diffstat (limited to 'include')
-rw-r--r--include/platform.h18
1 files changed, 14 insertions, 4 deletions
diff --git a/include/platform.h b/include/platform.h
index 1847bc2..49797de 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -197,7 +197,19 @@ typedef unsigned long long int uintmax_t;
#define PRIu32 "u"
#endif
-// Need to implement fdprintf for platforms that haven't got dprintf.
+/* uclibc does not implement daemon for no-mmu systems.
+ * For 0.9.29 and svn, __ARCH_USE_MMU__ indicates no-mmu reliably.
+ * For earlier versions there is no reliable way to check if we are building
+ * for a mmu-less system; the user should pass CFLAGS_EXTRA="-DBB_NOMMU"
+ * on his own.
+ */
+#if defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \
+ __UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__
+#define BB_NOMMU
+#endif
+
+/* Need to implement fdprintf for platforms that haven't got dprintf. */
+/* THIS SHOULD BE CLEANED OUT OF THE TREE ENTIRELY */
#define fdprintf dprintf
/* THIS SHOULD BE CLEANED OUT OF THE TREE ENTIRELY */
@@ -214,9 +226,7 @@ typedef unsigned long long int uintmax_t;
#define bb_setpgrp setpgrp()
#endif
-// I have no idea what platform this was for since aldot didn't say, but
-// it belongs here since Linux doesn't need it.
-
+/* This is needed on some non linux unices like Tru64 */
#if !defined ADJ_OFFSET_SINGLESHOT && defined MOD_CLKA && defined MOD_OFFSET
#define ADJ_OFFSET_SINGLESHOT (MOD_CLKA | MOD_OFFSET)
#endif