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configure.ac
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configure.ac
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AC_PREREQ([2.69])
AC_INIT(ShovelOS_Kernel, 0.1, contact@chris-stones.uk)
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_SRCDIR(src/kernel/main.c)
AC_CONFIG_HEADERS(src/config.h)
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([subdir-objects])
AC_CANONICAL_HOST
AC_MSG_NOTICE([HOST CPU IS "$host_cpu"])
case "$host_cpu" in
i386)
;;
*arm*)
config_shov_arch_is_arm="yes"
;;
*)
AC_MSG_NOTICE([unknown host_cpu])
;;
esac
AC_ARG_WITH(
[machine],
AS_HELP_STRING([--with-machine=MACHINE], [Select hardware to build for]),
[
config_shov_machine="$withval"
],
[
AC_MSG_ERROR([No machine selected. --with-machine=MACHINE required])
]
)
if test "x$config_shov_machine" != "xhosted"
then
CFLAGS="$CFLAGS -nostdlib"
fi
# ARM requires libgcc for divide.
AS_IF([test "x$config_shov_arch_is_arm" = "xyes"],
[
AC_SEARCH_LIBS(
[__aeabi_uidiv],[gcc],[],
AC_MSG_ERROR([Unable to find libgcc - required for division on ARM]))
])
AC_PROG_CC
AC_PROG_RANLIB
AM_PROG_AS
case "$config_shov_machine" in
i386_pc)
i386_pc=yes
x86_mbr=yes
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[i386])
;;
i286_pc)
AC_DEFINE([PHYSICAL_MEMORY_BASE_ADDRESS],[0x7E00],[physical base])
AC_DEFINE([VIRTUAL_MEMORY_BASE_ADDRESS],[0x7E00],[virtual base])
AC_DEFINE([PHYSICAL_MEMORY_LENGTH],[0x7200], [physical dram length])
AC_DEFINE([CONFIG_UNICORE], [1], [UNICORE ot SMP])
AC_DEFINE([PAGE_SIZE], [32], [PAGE SIZE])
AC_DEFINE([CONFIG_NOMMU], [1], [NO MMU])
AC_DEFINE([CONFIG_ARCH_i286], [1], [Generate code for 16bit real-mode])
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[i286])
AC_SUBST([LS_PAGE_SIZE], [32])
AC_SUBST([LS_FLASH_ORIGIN],[0x0500])
AC_SUBST([LS_FLASH_LENGTH],[0x7700])
AC_SUBST([LS_RAM_ORIGIN], [0x7E00])
AC_SUBST([LS_RAM_LENGTH], [0x7200])
AC_SUBST([LS_TEXT_MEMORY],[FLASH])
AC_SUBST([LS_RODATA_MEMORY],[FLASH])
AC_SUBST([LS_START_TEXT],[0x0500])
AC_SUBST([CPU_ARCH_FLAGS], ["-march=i386 -m16"])
i286_pc=yes
x86_mbr=yes
no_kthread=yes
no_time=yes
config_tiny=yes
;;
bbc_microbit)
AC_DEFINE([PHYSICAL_MEMORY_BASE_ADDRESS],[0x20000000],[physical base])
AC_DEFINE([VIRTUAL_MEMORY_BASE_ADDRESS],[0x20000000],[virtual base])
AC_DEFINE([PHYSICAL_MEMORY_LENGTH],[0x4000], [physical dram length])
AC_DEFINE([CONFIG_UNICORE], [1], [UNICORE ot SMP])
AC_DEFINE([PAGE_SIZE], [32], [PAGE SIZE])
AC_DEFINE([CONFIG_NOMMU], [1], [NO MMU])
AC_DEFINE([ARM_M_INIT_STACK], [0x20004000], [initial PC value])
AC_DEFINE([CONFIG_TINY], [1], [very little memory available])
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[arm_m])
AC_SUBST([LS_PAGE_SIZE], [256])
AC_SUBST([LS_FLASH_ORIGIN],[0x00000000])
AC_SUBST([LS_FLASH_LENGTH],[0x00040000])
AC_SUBST([LS_RAM_ORIGIN], [0x20000000])
AC_SUBST([LS_RAM_LENGTH], [0x00004000])
AC_SUBST([LS_TEXT_MEMORY],[FLASH])
AC_SUBST([LS_RODATA_MEMORY],[FLASH])
AC_SUBST([LS_START_TEXT],[0x00000000])
AC_SUBST([CPU_ARCH_FLAGS], ["-mthumb -mtune=cortex-m0 -mcpu=cortex-m0"])
nrf51822=yes
arm_v6m=yes
arm_m=yes
config_shov_arch_is_arm_nvic=yes
config_tiny=yes
;;
beaglexm)
AC_DEFINE([PHYSICAL_MEMORY_BASE_ADDRESS],[0x80200000],[physical base])
AC_DEFINE([VIRTUAL_MEMORY_BASE_ADDRESS],[0x80200000],[virtual base])
AC_DEFINE([PHYSICAL_MEMORY_LENGTH],[0xFE00000], [physical dram length])
AC_DEFINE([CONFIG_UNICORE], [1], [UNICORE ot SMP])
AC_DEFINE([PAGE_SIZE], [4096], [PAGE SIZE])
AC_DEFINE([TI_OMAP_MAJOR_VER], [3], [Texas Instruments OMAP major version])
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[arm_a])
AC_SUBST([LS_PAGE_SIZE], [4096])
AC_SUBST([LS_FLASH_ORIGIN],[0])
AC_SUBST([LS_FLASH_LENGTH],[0])
AC_SUBST([LS_RAM_ORIGIN],[0x80200000])
AC_SUBST([LS_RAM_LENGTH],[0x0FE00000])
AC_SUBST([LS_TEXT_MEMORY],[RAM])
AC_SUBST([LS_RODATA_MEMORY],[RAM])
AC_SUBST([LS_START_TEXT],[0x80200000])
AC_SUBST([CPU_ARCH_FLAGS], ["-marm -mtune=cortex-a8 -mcpu=cortex-a8"])
omap_major_ver=3
omap_soc=yes
arm_v7a=yes
arm_a=yes
;;
iGEPv5)
AC_DEFINE([PHYSICAL_MEMORY_BASE_ADDRESS],[0x80200000],[physical base])
AC_DEFINE([VIRTUAL_MEMORY_BASE_ADDRESS],[0x80200000],[virtual base])
AC_DEFINE([PHYSICAL_MEMORY_LENGTH],[0xFE00000], [physical dram length])
AC_DEFINE([CONFIG_UNICORE], [1], [UNICORE or SMP])
AC_DEFINE([PAGE_SIZE], [4096], [PAGE SIZE])
AC_DEFINE([TI_OMAP_MAJOR_VER], [5], [Texas Instruments OMAP major version])
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[arm_a])
AC_SUBST([LS_PAGE_SIZE], [4096])
AC_SUBST([LS_FLASH_ORIGIN],[0])
AC_SUBST([LS_FLASH_LENGTH],[0])
AC_SUBST([LS_RAM_ORIGIN],[0x80200000])
AC_SUBST([LS_RAM_LENGTH],[0x0FE00000])
AC_SUBST([LS_TEXT_MEMORY],[RAM])
AC_SUBST([LS_RODATA_MEMORY],[RAM])
AC_SUBST([LS_START_TEXT],[0x80200000])
AC_SUBST([CPU_ARCH_FLAGS], ["-marm -mtune=cortex-a15 -mcpu=cortex-a15"])
omap_major_ver=5
omap_soc=yes
config_shov_arch_is_arm_gic=yes
arm_v7a=yes
arm_a=yes
;;
hosted)
AC_DEFINE([PHYSICAL_MEMORY_BASE_ADDRESS],[0x0],[physical base])
AC_DEFINE([VIRTUAL_MEMORY_BASE_ADDRESS],[0x0],[virtual base])
AC_DEFINE([PHYSICAL_MEMORY_LENGTH],[0x400000], [physical dram length])
AC_DEFINE([CONFIG_UNICORE], [1], [UNICORE or SMP])
AC_DEFINE([PAGE_SIZE], [4096], [PAGE SIZE])
AC_DEFINE([HOSTED_PLATFORM],[1],[HOSTED PLATFORM])
AC_SUBST([SHOV_CONFIG_ARCH_DIR],[hosted])
hosted_platform=yes
;;
*)
AC_MSG_ERROR([Unsupported machine $config_shov_machine])
;;
esac
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_ARM], [test "x$config_shov_arch_is_arm" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_ARMv7A], [test "x$arm_v7a" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_ARMv6M], [test "x$arm_v6m" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_ARM_A], [test "x$arm_a" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_ARM_M], [test "x$arm_m" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_ARCH_IS_i286], [test "x$i286_pc" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_DRIVER_OMAP], [test "x$omap_soc" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_DRIVER_OMAP3], [test "x$omap_major_ver" = "x3"])
AM_CONDITIONAL([CONFIG_SHOV_DRIVER_NRF51822], [test "x$nrf51822" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_DRIVER_ARM_GIC], [test "x$config_shov_arch_is_arm_gic" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_DRIVER_ARM_NVIC], [test "x$config_shov_arch_is_arm_nvic" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_HOSTED_PLATFORM], [test "x$hosted_platform" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_i386_PC], [test "x$i386_pc" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_i286_PC], [test "x$i286_pc" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_x86_MBR], [test "x$x86_mbr" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_NO_KTHREAD], [test "x$no_kthread" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_NO_TIME], [test "x$no_time" = "xyes"])
AM_CONDITIONAL([CONFIG_SHOV_TINY], [test "x$config_tiny" = "xyes"])
AC_CONFIG_FILES([
Makefile
src/kernel/link.script
src/bootloader/i386-pc/link.script
src/bootloader/i386-pc/Makefile
src/bootloader/i386-pc/stage1.5/link.script
src/bootloader/i386-pc/stage1.5/Makefile
src/kernel/arch/hosted/libNix/Makefile
src/kernel/Makefile
])
AC_OUTPUT