[uClibc]enabling malloc `uClinux broken munmap' code

Miles Bader miles at lsi.nec.co.jp
Tue Oct 15 06:52:02 UTC 2002


Hi,

I added (locally) the following to the uClibc Makefile to enable the
malloc work-around for uClinux's broken munmap.  Is this OK?  Maybe it
ought to be a config-file option or something, but ...

-Miles


--- Makefile.~1.183.~	2002-10-09 09:57:55.000000000 +0900
+++ Makefile	2002-10-15 15:46:45.000000000 +0900
@@ -161,10 +161,14 @@ uClibc_config: Makefile Config
 	else \
 	    echo "#undef __UCLIBC_HAS_IPV6__" >> include/bits/uClibc_config.h ; \
 	fi
+	 # [For now we make the assumption that a linux system without an
+	 # MMU must be uClinux, and must have a broken munmap (both
+	 # assumptions are a bit dodgy, but can be changed in the future).]
 	@if [ "$(HAS_MMU)" = "true" ] ; then \
 	    echo "#define __UCLIBC_HAS_MMU__ 1" >> include/bits/uClibc_config.h ; \
 	else \
 	    echo "#undef __UCLIBC_HAS_MMU__" >> include/bits/uClibc_config.h ; \
+	    echo "#define __UCLIBC_UCLINUX_BROKEN_MUNMAP__ 1" >> include/bits/uClibc_config.h ; \
 	fi
 	@if [ "$(HAS_FLOATING_POINT)" = "true" ] ; then \
 	    echo "#define __UCLIBC_HAS_FLOATS__ 1" >> include/bits/uClibc_config.h ; \


-Miles
-- 
.Numeric stability is probably not all that important when you're guessing.



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