Rename makefiles to help categorise them.

1 files changed, 179 insertions, 0 deletions

diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
new file mode 100644
index 000000000..73ac30669
--- /dev/null
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -0,0 +1,179 @@
+#
+# Definitions for a generic GNU ARM-EABI toolchain
+#
+
+$(info %% Toolchain: gnu-arm-eabi)
+
+CROSSDEV		 = arm-none-eabi-
+
+CC			 = $(CROSSDEV)gcc
+CXX			 = $(CROSSDEV)g++
+CPP			 = $(CROSSDEV)gcc -E
+LD			 = $(CROSSDEV)ld
+AR			 = $(CROSSDEV)ar rcs
+NM			 = $(CROSSDEV)nm
+OBJCOPY			 = $(CROSSDEV)objcopy
+OBJDUMP			 = $(CROSSDEV)objdump
+
+# XXX this is pulled pretty directly from the fmu Make.defs - needs cleanup
+
+MAXOPTIMIZATION		 = -O3
+
+# base CPU flags
+ARCHCPUFLAGS_CORTEXM4F	 = -mcpu=cortex-m4 \
+			   -mthumb \
+			   -march=armv7e-m \
+			   -mfpu=fpv4-sp-d16 \
+			   -mfloat-abi=hard
+
+ARCHCPUFLAGS_CORTEXM4	 = -mcpu=cortex-m4 \
+			   -mthumb \
+			   -march=armv7e-m \
+			   -mfloat-abi=soft
+
+ARCHCPUFLAGS_CORTEXM3	 = -mcpu=cortex-m3 \
+			   -mthumb \
+			   -march=armv7-m \
+			   -mfloat-abi=soft
+
+ARCHCPUFLAGS		 = $(ARCHCPUFLAGS_$(CONFIG_ARCH))
+ifeq ($(ARCHCPUFLAGS),)
+$(error Must set CONFIG_ARCH to one of CORTEXM4F, CORTEXM4 or CORTEXM3)
+endif
+
+# optimisation flags
+ARCHOPTIMIZATION	 = $(MAXOPTIMIZATION) \
+			   -g \
+			   -fno-strict-aliasing \
+			   -fno-strength-reduce \
+			   -fomit-frame-pointer \
+   			   -funsafe-math-optimizations \
+   			   -fno-builtin-printf \
+   			   -ffunction-sections \
+   			   -fdata-sections
+
+# enable precise stack overflow tracking
+# note - requires corresponding support in NuttX
+INSTRUMENTATIONDEFINES	 = -finstrument-functions \
+			   -ffixed-r10
+
+ARCHCFLAGS		 = -std=gnu99
+ARCHCXXFLAGS		 = -fno-exceptions -fno-rtti -std=gnu++0x
+ARCHWARNINGS		 = -Wall \
+			   -Wextra \
+			   -Wdouble-promotion \
+			   -Wshadow \
+			   -Wfloat-equal \
+			   -Wframe-larger-than=1024 \
+			   -Wpointer-arith \
+			   -Wlogical-op \
+			   -Wmissing-declarations \
+			   -Wpacked \
+			   -Wno-unused-parameter
+#   -Wcast-qual  - generates spurious noreturn attribute warnings, try again later
+#   -Wconversion - would be nice, but too many "risky-but-safe" conversions in the code
+#   -Wcast-align - would help catch bad casts in some cases, but generates too many false positives
+
+ARCHCWARNINGS		 = $(ARCHWARNINGS) \
+			   -Wbad-function-cast \
+			   -Wstrict-prototypes \
+			   -Wold-style-declaration \
+			   -Wmissing-parameter-type \
+			   -Wmissing-prototypes \
+			   -Wnested-externs \
+			   -Wunsuffixed-float-constants
+ARCHWARNINGSXX		 = $(ARCHWARNINGS)
+
+# pull in *just* libm from the toolchain ... this is grody
+LIBM			:= $(shell $(CC) $(ARCHCPUFLAGS) -print-file-name=libm.a)
+EXTRA_LIBS		+= $(LIBM)
+
+CFLAGS			 = $(ARCHCFLAGS) \
+			   $(ARCHCWARNINGS) \
+			   $(ARCHOPTIMIZATION) \
+			   $(ARCHCPUFLAGS) \
+			   $(ARCHINCLUDES) \
+			   $(INSTRUMENTATIONDEFINES) \
+			   $(ARCHDEFINES) \
+			   $(EXTRADEFINES) \
+			   -fno-common
+
+CXXFLAGS		 = $(ARCHCXXFLAGS) \
+			   $(ARCHWARNINGSXX) \
+			   $(ARCHOPTIMIZATION) \
+			   $(ARCHCPUFLAGS) \
+			   $(ARCHXXINCLUDES) \
+			   $(INSTRUMENTATIONDEFINES) \
+			   $(ARCHDEFINES) \
+			   $(EXTRADEFINES)
+
+CPPFLAGS		 = $(ARCHINCLUDES) \
+			   $(INSTRUMENTATIONDEFINES) \
+			   $(ARCHDEFINES) \
+			   $(EXTRADEFINES)
+
+AFLAGS			 = $(CFLAGS) -D__ASSEMBLY__
+
+LDFLAGS			+= --warn-common \
+			   --gc-sections \
+			   -T $(LDSCRIPT) \
+			   $(addprefix -L,$(LIB_DIRS))
+
+LIBGCC			:= $(shell $(CC) $(ARCHCPUFLAGS) -print-libgcc-file-name)
+
+# files that the final link depends on
+# XXX add libraries that we know about here...
+LINK_DEPS		+= $(LDSCRIPT)
+
+# files to include to get automated dependencies
+DEP_INCLUDES		 = $(subst .o,.d,$(OBJS))
+
+ifeq ($(V),)
+Q			 = @
+else
+Q			 =
+endif
+
+# compile C source $1 to object $2
+# as a side-effect, generate a dependency file
+define COMPILE
+	@echo "CC: $1"
+	$(Q) $(CC) -MD -c $(CFLAGS) $(abspath $1) -o $2
+endef
+
+# compile C++ source $1 to $2
+# as a side-effect, generate a dependency file
+define COMPILEXX
+	@echo "CXX: $1"
+	$(Q) $(CXX) -MD -c $(CXXFLAGS) $(abspath $1) -o $2
+endef
+
+# assemble $1 into $2
+define ASSEMBLE
+	@echo "AS: $1"
+	$(Q) $(CC) -c $(AFLAGS) $(abspath $1) -o $2
+endef
+
+# produce partially-linked $1 from files in $2
+define PRELINK
+	@echo "PRELINK: $1"
+	$(Q) $(LD) -Ur -o $1 $2 && $(OBJCOPY) --localize-hidden $1
+endef
+
+# update the archive $1 with the files in $2
+define ARCHIVE
+	@echo "AR: $2"
+	$(Q) $(AR) $1 $2
+endef
+
+# Link the objects in $2 into the binary $1
+define LINK
+	@echo "LINK: $1"
+	$(Q) $(LD) $(LDFLAGS) -o $1 --start-group $(LIBS) $(EXTRA_LIBS) $(LIBGCC) --end-group
+endef
+
+# convert $1 from a linked object to a raw binary
+define SYM_TO_BIN
+	@echo "BIN: $2"
+	$(Q) $(OBJCOPY) -O binary $1 $2
+endef