diff options
Diffstat (limited to 'make')
| -rw-r--r-- | make/custom/mvme167.cfg | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/make/custom/mvme167.cfg b/make/custom/mvme167.cfg index 616dab8a83..5ea4168704 100644 --- a/make/custom/mvme167.cfg +++ b/make/custom/mvme167.cfg @@ -4,11 +4,11 @@ # $Id$ # -include $(RTEMS_ROOT)/make/custom/default.cfg - RTEMS_CPU=m68k RTEMS_CPU_MODEL=m68040 +include $(RTEMS_ROOT)/make/custom/default.cfg + # This is the actual bsp directory used during the build process. RTEMS_BSP_FAMILY=mvme167 @@ -23,7 +23,7 @@ CPU_CFLAGS = -m68040 # -O4 is ok for RTEMS CFLAGS_OPTIMIZE_V=-O4 -fomit-frame-pointer -# This target does NOT support the TCP/IP stack so ignore requests +# This target does NOT support the TCP/IP stack (yet) so ignore requests # to enable it. HAS_NETWORKING=no @@ -56,6 +56,22 @@ endef # will be able to override parts of the compilers specs and link using gcc. ifeq ($(RTEMS_USE_GCC272),yes) + +# The MC68040 does not implement all MC68881/MC68882 instructions, so use +# either the gcc floating-point software support (msoft-float libraries), or +# use the Motorola FPSP floating-point emulator in +# rtems/c/src/lib/libcpu/m68k/m68040/fpsp +# The default is to use the FPSP. +# To use the msoft-float libraries, uncomment the three lines below. +# You then should comment the M68KFPSPInstallExceptionHandlers() statement +# in rtems/c/src/lib/libbsp/m68k/mvme167/startup/bststart.c in bsp_start(). +# Floating-point support will then be limited. See the mvme167 README file +# for more details. + +# LIBC_LIBC = $(RTEMS_LIBC_DIR)/lib/msoft-float/libc.a +# LIBC_LIBM = $(RTEMS_LIBC_DIR)/lib/msoft-float/libm.a +# LIBGCC = $(shell $(CC) -msoft-float -print-libgcc-file-name) + define make-exe $(LD) $(LDFLAGS) -N -T $(LINKCMDS) -o $(basename $@).exe \ $(START_FILE) $(LINK_OBJS) --start-group $(LINK_LIBS) --end-group |