Initial commit.

fork from
https://github.com/cupnes/x86_64_jisaku_os_samples/tree/db5ff13/A01_poiboot

.gitignore

@@ -0,0 +1,12 @@
+*~
+*.o
+*.a
+*.bin
+*.efi
+*.img
+*.map
+*.bgra
+GPATH
+GRTAGS
+GSYMS
+GTAGS

Makefile

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+CC      = x86_64-w64-mingw32-gcc
+OBJCOPY = x86_64-w64-mingw32-objcopy
+CFLAGS  = -Wall -Wextra
+CFLAGS += -nostdinc -nostdlib -fno-builtin -fno-common
+CFLAGS += -Wl,--subsystem,10
+
+poiboot.efi: poiboot.o libuefi/libuefi.a
+	$(CC) $(CFLAGS) -e efi_main -o $@ $+
+
+poiboot.o: poiboot.c
+	$(CC) $(CFLAGS) -Iinclude -c -o $@ $<
+
+libuefi/libuefi.a:
+	make -C libuefi CC=$(CC) CFLAGS="$(CFLAGS)"
+
+deploy: poiboot.efi
+	mkdir -p ../fs/EFI/BOOT
+	cp $< ../fs/EFI/BOOT/BOOTX64.EFI
+
+clean:
+	rm -f *~ *.o *.efi
+	make -C libuefi clean
+
+.PHONY: clean

include/common.h

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+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#define NULL	(void *)0
+#define TRUE	1
+#define FALSE	0
+#define SC_OFS	0x1680
+#define SC_ESC	(SC_OFS + 0x0017)
+
+void putc(unsigned short c);
+void puts(unsigned short *s);
+void puth(unsigned long long val, unsigned char num_digits);
+unsigned short getc(void);
+unsigned int gets(unsigned short *buf, unsigned int buf_size);
+int strcmp(const unsigned short *s1, const unsigned short *s2);
+void strncpy(unsigned short *dst, unsigned short *src, unsigned long long n);
+unsigned long long strlen(unsigned short *str);
+unsigned long long hexstrtoull(char *str);
+unsigned char check_warn_error(unsigned long long status, unsigned short *name);
+void assert(unsigned long long status, unsigned short *message);
+
+#endif