* Commit: MSP430: Built libgcc with hardware multiply disabled
@ 2014-05-22 15:14 Nick Clifton
0 siblings, 0 replies; only message in thread
From: Nick Clifton @ 2014-05-22 15:14 UTC (permalink / raw)
To: gcc-patches
Hi Guys,
I am applying the patch below (to mainline and the 4.9 branch) to fix
a problem when building libgcc for the MSP430. The problem was that
the software multiply functions were being renamed to the hardware
multiply equivalents, and libgcc was using the hardware multiply
feature even when it was not clear that it would be supported by the
target MCU. The fix is just to disable the use of hardware multiplies
inside libgcc.
Cheers
Nick
libgcc/ChangeLog
2014-05-22 Nick Clifton <nickc@redhat.com>
* config/msp430/t-msp430 (HOST_LIBGCC2_CFLAGS): Add
-mhwmult=none.
Index: config/msp430/t-msp430
===================================================================
--- config/msp430/t-msp430 (revision 210809)
+++ config/msp430/t-msp430 (working copy)
@@ -42,7 +42,7 @@
$(srcdir)/config/msp430/floathisf.c \
$(srcdir)/config/msp430/cmpd.c
-HOST_LIBGCC2_CFLAGS += -Os -ffunction-sections -fdata-sections
+HOST_LIBGCC2_CFLAGS += -Os -ffunction-sections -fdata-sections -mhwmult=none
# Local Variables:
# mode: Makefile
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2014-05-22 15:14 Commit: MSP430: Built libgcc with hardware multiply disabled Nick Clifton
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