7811a8ae52
Add an example of a program which boots an OS by calling into the U-Boot library. Series-to: concept Co-developed-by: Claude <noreply@anthropic.com> Co-developed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Series-links: 1:28
48 lines
1.5 KiB
Makefile
48 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# Standalone Makefile for U-Boot library examples
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#
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# Copyright 2025 Canonical Ltd.
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# Written by Simon Glass <simon.glass@canonical.com>
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# This Makefile can be used to build the examples. See doc/develop/ulib.rst
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#
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# Usage: cd examples/ulib; make UBOOT_BUILD=/tmp/b/sandbox/ srctree=../..
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#
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# This Makefile is also called from the main U-Boot Makefile when CONFIG_ULIB
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# and CONFIG_EXAMPLES are enabled. It receives these variables, many of which
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# are needed to ensure that the output goes to the right place:
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#
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# UBOOT_BUILD - Build directory (e.g., /tmp/b/sandbox)
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# EXAMPLE_DIR - Source tree path for these examples
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# OUTDIR - Output directory for object files and executables
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# srctree - U-Boot source tree
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#
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# Also these may be provided:
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# CC - C compiler
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# CFLAGS - C compiler flags
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# SDL_CONFIG - Name of sdl2-config program
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# PLATFORM_LIBS - Platform-specific libraries
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# LIB_STATIC_LDS - Linker script for static library
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# Include configuration and helper functions
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include config.mk
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# Programs to build
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progs := demo boot
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# Program definitions - list of object files for each program
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demo_objs := demo.o demo_helper.o
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boot_objs := boot.o bootflow.o
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# Objects that need system headers (default is U-Boot headers)
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sys-objs := boot.o demo_helper.o
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# Include build rules (must come after variable definitions)
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include rules.mk
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clean:
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$(Q)rm -f $(all_bins) $(OUTDIR)/*.o
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.PHONY: all clean
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