1 files changed, 59 insertions, 0 deletions
diff --git a/support/make/build-rules.mk b/support/make/build-rules.mk
new file mode 100644
index 0000000..7c918d8
--- /dev/null
+++ b/support/make/build-rules.mk
@@ -0,0 +1,59 @@
+# Useful tools
+CROSS_COMPILE ?= arm-none-eabi-
+
+CC       := $(CROSS_COMPILE)gcc
+CXX      := $(CROSS_COMPILE)g++
+LD       := $(CROSS_COMPILE)ld -v
+AR       := $(CROSS_COMPILE)ar
+AS       := $(CROSS_COMPILE)gcc
+OBJCOPY  := $(CROSS_COMPILE)objcopy
+DISAS    := $(CROSS_COMPILE)objdump
+OBJDUMP  := $(CROSS_COMPILE)objdump
+SIZE     := $(CROSS_COMPILE)size
+DFU      ?= dfu-util
+
+# Suppress annoying output unless V is set
+ifndef V
+   SILENT_CC       = @echo '  [CC]       ' $(@:$(BUILD_PATH)/%.o=%.c);
+   SILENT_AS       = @echo '  [AS]       ' $(@:$(BUILD_PATH)/%.o=%.S);
+   SILENT_CXX      = @echo '  [CXX]      ' $(@:$(BUILD_PATH)/%.o=%.cpp);
+   SILENT_LD       = @echo '  [LD]       ' $(@F);
+   SILENT_AR       = @echo '  [AR]       '
+   SILENT_OBJCOPY  = @echo '  [OBJCOPY]  ' $(@F);
+   SILENT_DISAS    = @echo '  [DISAS]    ' $(@:$(BUILD_PATH)/%.bin=%).disas;
+   SILENT_OBJDUMP  = @echo '  [OBJDUMP]  ' $(OBJDUMP);
+endif
+
+# Extra build configuration
+
+BUILDDIRS :=
+TGT_BIN   :=
+
+CFLAGS   = $(GLOBAL_CFLAGS) $(TGT_CFLAGS)
+CXXFLAGS = $(GLOBAL_CXXFLAGS) $(TGT_CXXFLAGS)
+ASFLAGS  = $(GLOBAL_ASFLAGS) $(TGT_ASFLAGS)
+
+# Hacks to determine extra libraries we need to link against based on
+# the toolchain. The default specifies no extra libraries, but it can
+# be overridden.
+LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/generic
+ifneq ($(findstring ARM/embedded,$(shell $(CC) --version)),)
+# GCC ARM Embedded, https://launchpad.net/gcc-arm-embedded/
+LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/gcc-arm-embedded
+endif
+ifneq ($(findstring Linaro GCC,$(shell $(CC) --version)),)
+# Summon/Linaro GCC ARM Embedded, https://github.com/esden/summon-arm-toolchain
+LD_TOOLCHAIN_PATH := $(LDDIR)/toolchains/gcc-arm-embedded
+endif
+# Add toolchain directory to LD search path
+TOOLCHAIN_LDFLAGS := -L $(LD_TOOLCHAIN_PATH)
+
+# General directory independent build rules, generate dependency information
+$(BUILD_PATH)/%.o: %.c
+	$(SILENT_CC) $(CC) $(CFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<
+
+$(BUILD_PATH)/%.o: %.cpp
+	$(SILENT_CXX) $(CXX) $(CFLAGS) $(CXXFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<
+
+$(BUILD_PATH)/%.o: %.S
+	$(SILENT_AS) $(AS) $(ASFLAGS) -MMD -MP -MF $(@:%.o=%.d) -MT $@ -o $@ -c $<