Import from internal tree

Author: jserv

.clang-format

@@ -0,0 +1,21 @@
+BasedOnStyle: Chromium
+Language: Cpp
+MaxEmptyLinesToKeep: 3
+IndentCaseLabels: false
+AllowShortIfStatementsOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+DerivePointerAlignment: false
+PointerAlignment: Right
+SpaceAfterCStyleCast: true
+TabWidth: 4
+UseTab: Never
+IndentWidth: 4
+BreakBeforeBraces: Linux
+AccessModifierOffset: -4
+ForEachMacros:
+  - foreach
+  - list_for_each
+  - list_for_each_safe
+  - list_for_each_entry
+  - list_for_each_entry_safe

.gitignore

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+out
+a.out
+*.o
+*.elf
+*.log
+*.lst

Makefile

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+CC ?= gcc
+CFLAGS := -O -g \
+	-ansi -pedantic \
+	-Wall -Wextra
+
+include mk/common.mk
+include mk/arm.mk
+
+STAGE0 := shecc
+STAGE1 := shecc-stage1.elf
+STAGE2 := shecc-stage2.elf
+
+OUT ?= out
+SRCDIR := $(shell find src -type d)
+LIBDIR := $(shell find lib -type d)
+
+SRCS := $(wildcard $(patsubst %,%/main.c, $(SRCDIR)))
+OBJS := $(SRCS:%.c=$(OUT)/%.o)
+deps := $(OBJS:%.o=%.o.d)
+TESTS := $(wildcard tests/*.c)
+TESTBINS := $(TESTS:%.c=$(OUT)/%.elf)
+
+all: bootstrap
+
+$(OUT)/tests/%.elf: tests/%.c $(OUT)/$(STAGE0)
+	$(VECHO) "  SHECC\t$@\n"
+	$(Q)$(OUT)/$(STAGE0) --dump-ir -o $@ $< > $(basename $@).log ; \
+	chmod +x $@ ; $(PRINTF) "Running $@ ...\n"
+	$(Q)$(ARM_EXEC) $@ && $(call pass)
+	# $(CROSS_COMPILE)objdump -d $@ > $(basename $@).lst
+
+check: $(TESTBINS) tests/driver.sh
+	tests/driver.sh
+
+$(OUT)/%.o: %.c
+	$(VECHO) "  CC\t$@\n"
+	$(Q)$(CC) -o $@ $(CFLAGS) -c -MMD -MF $@.d $<
+
+SHELL_HACK := $(shell mkdir -p $(OUT) $(OUT)/$(SRCDIR) $(OUT)/tests)
+$(OUT)/libc.inc: $(OUT)/inliner $(LIBDIR)/c.c
+	$(VECHO) "  GEN\t$@\n"
+	$(Q)$(OUT)/inliner $(LIBDIR)/c.c $@
+
+$(OUT)/inliner: tools/inliner.c
+	$(VECHO) "  CC+LD\t$@\n"
+	$(Q)$(CC) $(CFLAGS) -o $@ $^
+
+$(OUT)/$(STAGE0): $(OUT)/libc.inc $(OBJS)
+	$(VECHO) "  LD\t$@\n"
+	$(Q)$(CC) $(CFLAGS) $(OBJS) -o $@
+
+$(OUT)/$(STAGE1): $(OUT)/$(STAGE0)
+	$(VECHO) "  SHECC\t$@\n"
+	$(Q)$(OUT)/$(STAGE0) --dump-ir -o $@ $(SRCDIR)/main.c > $(OUT)/shecc-stage1.log
+	$(Q)chmod a+x $@
+
+$(OUT)/$(STAGE2): $(OUT)/$(STAGE1)
+	$(VECHO) "  SHECC\t$@\n"
+	$(Q)$(ARM_EXEC) $(OUT)/$(STAGE1) -o $@ $(SRCDIR)/main.c
+
+bootstrap: $(OUT)/$(STAGE2)
+	$(Q)if ! diff -q $(OUT)/$(STAGE1) $(OUT)/$(STAGE2); then \
+	echo "Unable to bootstrap. Aborting"; false; \
+	fi
+
+.PHONY: clean
+clean:
+	-$(RM) $(OUT)/$(STAGE0) $(OUT)/$(STAGE1) $(OUT)/$(STAGE2)
+	-$(RM) $(OBJS) $(deps)
+	-$(RM) $(TESTBINS) $(OUT)/tests/*.log $(OUT)/tests/*.lst
+	-$(RM) $(OUT)/shecc*.log
+	-$(RM) $(OUT)/inliner $(OUT)/libc.inc
+
+-include $(deps)