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Commit: MSP430: Add -mhwmult=none to build command line
- From: Nick Clifton <nickc at redhat dot com>
- To: newlib at sourceware dot org
- Date: Fri, 21 Nov 2014 11:55:07 +0000
- Subject: Commit: MSP430: Add -mhwmult=none to build command line
- Authentication-results: sourceware.org; auth=none
Hi Guys,
I am applying the patch below to fix the build of newlib for the
MSP430 target. The problem here is that availability of hardware
multiply support in the target is not known at build time, and so it
cannot be relied upon. Instead a software multiply function is used.
The will make the library slightly slower, but also work properly for
all MSP430 MCU types.
Cheers
Nick
newlib/ChangeLog
2014-11-21 Nick Clifton <nickc@redhat.com>
PR target/63901
* configure.host (msp430): Add -mhwmult=none to newlib_cflags.
Index: newlib/configure.host
===================================================================
RCS file: /cvs/src/src/newlib/configure.host,v
retrieving revision 1.137
diff -u -3 -p -r1.137 configure.host
--- newlib/configure.host 27 Jul 2014 14:37:10 -0000 1.137
+++ newlib/configure.host 21 Nov 2014 11:49:45 -0000
@@ -229,6 +229,7 @@ case "${host_cpu}" in
newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DSMALL_MEMORY"
newlib_cflags="${newlib_cflags} -ffunction-sections -fdata-sections "
newlib_cflags="${newlib_cflags} -mOs "
+ newlib_cflags="${newlib_cflags} -mhwmult=none "
machine_dir=msp430
default_newlib_nano_malloc="yes"
;;