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# SPDX-License-Identifier: GPL-2.0+
#
# Build rules for U-Boot library examples
#
# Copyright 2025 Canonical Ltd.
# Written by Simon Glass <simon.glass@canonical.com>

# Generate binary names from progs variable
# Shared-linked versions are only built when libu-boot.so is available
static_bins := $(foreach prog,$(progs),$(OUTDIR)/$(prog)_static)
shared_bins := $(if $(wildcard $(UBOOT_BUILD)/libu-boot.so),\
	$(foreach prog,$(progs),$(OUTDIR)/$(prog)))
all_bins := $(shared_bins) $(static_bins)

# Default target builds both programs
all: $(all_bins)

# System headers rule for objects that need system APIs
$(foreach obj,$(sys-objs),$(eval $(OUTDIR)/$(obj): \
	$(EXAMPLE_DIR)/$(obj:.o=.c) | $(OUTDIR) ; \
	$$(CC) $$(CFLAGS) $$(SYSTEM_CFLAGS) -c -o $$@ $$<))

# Automatic build rules for all programs
$(foreach prog,$(progs),$(eval $(OUTDIR)/$(prog): \
	$$(addprefix $(OUTDIR)/,$$($(prog)_objs)) $(UBOOT_BUILD)/libu-boot.so ; \
	$$(CC) $$(CFLAGS) -o $$@ $$(filter-out %.so,$$^) $$(SHARED_LDFLAGS)))
$(foreach prog,$(progs),$(eval $(OUTDIR)/$(prog)_static: \
	$$(addprefix $(OUTDIR)/,$$($(prog)_objs)) $(UBOOT_BUILD)/libu-boot.a ; \
	$$(CC) $$(CFLAGS) -o $$@ $$(filter-out %.a,$$^) $$(STATIC_LDFLAGS)))

# Create the output directory if it doesn't exist
$(OUTDIR):
	@mkdir -p $@

# Default rule: compile with U-Boot headers
$(OUTDIR)/%.o: $(EXAMPLE_DIR)/%.c | $(OUTDIR)
	$(CC) $(CFLAGS) $(UBOOT_CFLAGS) -c -o $@ $<