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* [newlib-cygwin] Use a precise bit count for the slab free items in UMA.
@ 2022-06-24 5:42 Sebastian Huber
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From: Sebastian Huber @ 2022-06-24 5:42 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a6bd733db995ce9269e7654c67d2e57256a8d7c2
commit a6bd733db995ce9269e7654c67d2e57256a8d7c2
Author: Jeff Roberson <jeff@FreeBSD.org>
Date: Mon Dec 2 22:44:34 2019 +0000
Use a precise bit count for the slab free items in UMA.
This significantly shrinks embedded slab structures.
Reviewed by: markj, rlibby (prior version)
Differential Revision: https://reviews.freebsd.org/D22584
Diff:
---
newlib/libc/sys/rtems/include/sys/bitset.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/newlib/libc/sys/rtems/include/sys/bitset.h b/newlib/libc/sys/rtems/include/sys/bitset.h
index cd70fd4f0..d119c23ca 100644
--- a/newlib/libc/sys/rtems/include/sys/bitset.h
+++ b/newlib/libc/sys/rtems/include/sys/bitset.h
@@ -249,10 +249,11 @@
#define BITSET_FSET(n) \
[ 0 ... ((n) - 1) ] = (-1L)
+#define BITSET_SIZE(_s) (__bitset_words((_s)) * sizeof(long))
+
/*
* Dynamically allocate a bitset.
*/
-#define BITSET_ALLOC(_s, mt, mf) \
- malloc(__bitset_words(_s) * sizeof(long), mt, (mf))
+#define BITSET_ALLOC(_s, mt, mf) malloc(BITSET_SIZE((_s)), mt, (mf))
#endif /* !_SYS_BITSET_H_ */
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2022-06-24 5:42 [newlib-cygwin] Use a precise bit count for the slab free items in UMA Sebastian Huber
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