Hi, I have a AMD demo board with a AM186ES 40MHz chip, 256k flash and 256k RAM. This chip is slightly different from others like the 8018x one in ELKS. I've started to write code for this chip, but I am struggling with menuconfig and Makefiles. My files are not even get compiled (verified by adding "#error bla" to files, no error thrown). My steps so far: 1) I started by creating a (huge) MSR definition file directly from datasheet, this one should be 100% done, hopefully nothing missed :) I copied files from recent 8018x changes to -am186.c and rewrote routines/pieces for my MCU, added to makefiles etc: 2) elks/config.in ... choice 'Select system' \ "IBM-PC CONFIG_ARCH_IBMPC \ AM186 CONFIG_ARCH_AM186 \ 8018X CONFIG_ARCH_8018X" IBM-PC ... elif [ "$CONFIG_ARCH_8018X" = "y" ]; then comment 'Platform' comment 'Devices' elif [ "$CONFIG_ARCH_AM186" = "y" ]; then comment 'Platform' comment 'Devices' fi ... if [ "$CONFIG_ARCH_AM186" = "y" ]; then bool 'Build kernel as ROM-bootable' CONFIG_ROMCODE n fi ... 3) created arch/i86/drivers/char/conio-am186.c 4) changed arch/i86/drivers/char/Makefile ... ifeq ($(CONFIG_ARCH_AM186), y) CONIO = am186 SERIAL = template endif .... 5) created arch/i86/kernel/irq-am186.c 6) changed arch/i86/kernel/irqtab.S 7) created arch/i86/kernel/timer-am186.c 8) changed arch/i86/kernel/Makefile ... ifeq ($(CONFIG_ARCH_AM186), y) OBJS += irq-am186.o timer-am186.o endif ... 9) changed include/linuxmt/config.h #ifdef CONFIG_ARCH_AM186 #define MAX_SERIAL 2 /* max number of serial tty devices*/ #define SETUP_VID_COLS 80 /* BIOS video # columns */ #define SETUP_VID_LINES 25 /* BIOS video # lines */ #define SETUP_CPU_TYPE 5 /* processor type 80186 */ #define SETUP_MEM_KBYTES 256 /* base memory in 1K bytes */ #define SETUP_ROOT_DEV 0x0600 /* root device ROMFS */ #define SETUP_ELKS_FLAGS 0 /* flags for root device type */ #define SETUP_PART_OFFSETLO 0 /* partition offset low word */ #define SETUP_PART_OFFSETHI 0 /* partition offset high word */ #define SYS_CAPS 0 /* no XT/AT capabilities */ #define SETUP_HEAPSIZE 1024 /* minimum kernel heap for now*/ #define CONFIG_AM186_FCPU 40 #endif 10) created a .config with these settings: CONFIG_ARCH_AM186=y CONFIG_SMALL_KERNEL=y CONFIG_ROMCODE=y CONFIG_EXPERIMENTAL=y CONFIG_ROM_SETUP_CODE=0xe000 CONFIG_ROM_KERNEL_CODE=0xe060 CONFIG_ROM_SETUP_DATA=0x0060 CONFIG_ROM_KERNEL_DATA=0x0080 CONFIG_ROM_BASE=0xe000 CONFIG_ROM_CHECKSUM_SIZE=64 CONFIG_ROM_BOOTABLE_BY_RESET=y CONFIG_ROM_RESET_ADDRESS=0x0003 CONFIG_ROMFS_FS=y CONFIG_ROMFS_BASE=0x8000 CONFIG_FULL_VFS=y CONFIG_PIPE=y CONFIG_CONSOLE_HEADLESS=y CONFIG_KEYBOARD_SCANCODE=y CONFIG_CONSOLE_SERIAL=y CONFIG_CHAR_DEV_RS=y CONFIG_APP_SASH=y CONFIG_IMG_ROM=y After all that I go to root folder of source, where I have run build.sh the first time. I do this: $ source env.sh $ make clean $ make It runs for quite a few minutes (old machine) and stops with this: ... ... gcc -I/home/bx/elks-dev/elks-am186/include -I/home/bx/elks-dev/elks-am186/elks/include -o build build.c gcc -I/home/bx/elks-dev/elks-am186/include -I/home/bx/elks-dev/elks-am186/elks/include -o mkbootloader mkbootloader.c make[3]: Verzeichnis „/home/bx/elks-dev/elks-am186/elks/arch/i86/tools“ wird verlassen gcc -E -traditional -I/home/bx/elks-dev/elks-am186/include -I/home/bx/elks-dev/elks-am186/elks/include -I/home/bx/elks-dev/elks-am186/libc/include -DUTS_RELEASE=\"0.4.0\" -D__KERNEL__ -o boot/setup.tmp boot/setup.S ia16-elf-as --32-segelf -o boot/setup.o boot/setup.tmp rm boot/setup.tmp ia16-elf-ld.gold -s -M -T /home/bx/elks-dev/elks-am186/elks/elks-tiny.ld -o boot/setup boot/setup.o > boot/setup.map boot/setup.o(.text+0x2e): error: undefined reference to 'arch_set_initseg' boot/setup.o(.text+0xfe): error: undefined reference to 'putc' boot/setup.o(.text+0x112): error: undefined reference to 'putc' boot/setup.o(.text+0x140): error: undefined reference to 'putc' make[2]: *** [Makefile:98: boot/setup] Fehler 1 make[2]: Verzeichnis „/home/bx/elks-dev/elks-am186/elks/arch/i86“ wird verlassen make[1]: *** [Makefile:75: Image] Fehler 2 make[1]: Verzeichnis „/home/bx/elks-dev/elks-am186/elks“ wird verlassen make: *** [Makefile:13: all] Fehler 2 What am I missing / did I do wrong? Thank you, Nils
