mirror of
https://github.com/drasko/codezero.git
synced 2026-01-12 02:43:15 +01:00
Kernel updates since December 2009
This commit is contained in:
Bahadir Balban
@@ -40,12 +40,31 @@ class LinuxUpdateKernel:
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['USB_SUPPORT', 'UNSET'],['SOUND', 'UNSET'],)
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# List of CPUIDs, to be used by linux based on codezero config
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self.cpuid_list = (['ARM926', '0x41069265'],)
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self.cpuid_list = (['ARM926', '0x41069265'],
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['CORTEXA8', '0x410fc080'],
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['ARM11MPCORE', '0x410fb022'],
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['CORTEXA9', '0x410fc090'])
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# List of ARCHIDs, to be used by linux based on codezero config
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self.archid_list = (['PB926', '0x183'],
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['PB1176', '0x5E0'],
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['EB', '0x33B'],
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['PB11MPCORE', '0x3D4'],)
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['PB11MPCORE', '0x3D4'],
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['BEAGLE', '0x60A'],
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['PBA9', '0x76D'],
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['PBA8', '0x769'])
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# Path of system_macros header file
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self.system_macros_h_out = \
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join(LINUX_KERNELDIR,
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'arch/codezero/include/virtualization/system_macros.h')
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self.system_macros_h_in = \
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join(LINUX_KERNELDIR,
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'arch/codezero/include/virtualization/system_macros.h.in')
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#Path for kernel_param file
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self.kernel_param_out = \
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join(LINUX_KERNELDIR, 'arch/codezero/include/virtualization/kernel_param')
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self.kernel_param_in = \
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join(LINUX_KERNELDIR, 'arch/codezero/include/virtualization/kernel_param.in')
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# Replace line(having input_pattern) in filename with new_data
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def replace_line(self, filename, input_pattern, new_data, prev_line):
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@@ -81,41 +100,20 @@ class LinuxUpdateKernel:
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# Write back to file
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f.write(l.replace(line, new_data))
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def update_kernel_params(self, container):
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# Update TEXT_START
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file = join(LINUX_KERNELDIR, 'arch/arm/boot/compressed/Makefile')
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param = str(conv_hex(container.linux_phys_offset))
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new_data = ('ZTEXTADDR' + '\t' + ':= ' + param + '\n')
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data_to_replace = "(ZTEXTADDR)(\t)(:= 0)"
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prev_line = ''
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Update PHYS_OFFSET
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file = join(LINUX_KERNELDIR, 'arch/arm/mach-versatile/include/mach/memory.h')
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param = str(conv_hex(container.linux_phys_offset))
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new_data = ('#define PHYS_OFFSET UL(' + param + ')\n')
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data_to_replace = "(#define PHYS_OFFSET)"
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prev_line = ''
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Update kernel parameters
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def update_kernel_params(self, config, container):
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# Update PAGE_OFFSET
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file = join(LINUX_KERNELDIR, 'arch/arm/Kconfig')
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# FIXME: Find a way to add this in system_macros.h or kernel_param
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# issue is we have to update this in KCONFIG file which cannot
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# have dependency on other files.
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file = join(LINUX_KERNELDIR, 'arch/codezero/Kconfig')
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param = str(conv_hex(container.linux_page_offset))
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new_data = ('\t' + 'default ' + param + '\n')
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data_to_replace = "(\t)(default )"
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prev_line = ('\t'+'default 0x80000000 if VMSPLIT_2G' + '\n')
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Update ZRELADDR
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file = join(LINUX_KERNELDIR, 'arch/arm/mach-versatile/Makefile.boot')
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param = str(conv_hex(container.linux_zreladdr))
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new_data = (' zreladdr-y' + '\t' + ':= ' + param + '\n')
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data_to_replace = "(\s){3}(zreladdr-y)(\t)(:= )"
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prev_line = ''
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Update ARCHID, CPUID and ATAGS ADDRESS
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def modify_register_values(self, config, container):
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for cpu_type, cpu_id in self.cpuid_list:
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if cpu_type == config.cpu.upper():
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cpuid = cpu_id
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@@ -125,23 +123,28 @@ class LinuxUpdateKernel:
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archid = arch_id
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break
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file = join(LINUX_KERNELDIR, 'arch/arm/kernel/head.S')
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prev_line = ''
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new_data = ('cpuid: .word ' + cpuid + '\n')
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data_to_replace = "(cpuid:)"
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Create system_macros header
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with open(self.system_macros_h_out, 'w+') as output:
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with open(self.system_macros_h_in, 'r') as input:
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output.write(input.read() % \
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{'cpuid' : cpuid, \
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'archid' : archid, \
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'atags' : str(conv_hex(container.linux_page_offset + 0x100)), \
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'ztextaddr' : str(conv_hex(container.linux_phys_offset)), \
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'phys_offset' : str(conv_hex(container.linux_phys_offset)), \
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'page_offset' : str(conv_hex(container.linux_page_offset)), \
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'zreladdr' : str(conv_hex(container.linux_zreladdr))})
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new_data = ('archid: .word ' + archid + '\n')
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data_to_replace = "(archid:)"
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self.replace_line(file, data_to_replace, new_data, prev_line)
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# Atags will be present at PHYS_OFFSET + 0x100(=256)
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new_data = ('atags: .word ' + \
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str(conv_hex(container.linux_phys_offset + 0x100)) + '\n')
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data_to_replace = "(atags:)"
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self.replace_line(file, data_to_replace, new_data, prev_line)
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with open(self.kernel_param_out, 'w+') as output:
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with open(self.kernel_param_in, 'r') as input:
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output.write(input.read() % \
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{'ztextaddr' : str(conv_hex(container.linux_phys_offset)), \
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'phys_offset' : str(conv_hex(container.linux_phys_offset)), \
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'page_offset' : str(conv_hex(container.linux_page_offset)), \
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'zreladdr' : str(conv_hex(container.linux_zreladdr))})
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def modify_kernel_config(self):
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file = join(LINUX_KERNELDIR, 'arch/arm/configs/versatile_defconfig')
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def modify_kernel_config(self, linux_builddir):
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file = join(linux_builddir, '.config')
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for param_name, param_value in self.config_param_list:
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param = 'CONFIG_' + param_name
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prev_line = ''
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@@ -152,7 +155,7 @@ class LinuxUpdateKernel:
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data_to_replace = param
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new_data = ('# ' + param + ' is not set' + '\n')
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self.replace_line(file, data_to_replace, new_data, prev_line)
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self.replace_line(file, data_to_replace, new_data, prev_line)
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class LinuxBuilder:
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@@ -170,23 +173,36 @@ class LinuxBuilder:
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self.kernel_image = join(self.LINUX_KERNEL_BUILDDIR, "linux.elf")
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self.kernel_updater = LinuxUpdateKernel(self.container)
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# Default configuration file to use based on selected platform
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self.platform_config_file = (['PB926', 'versatile_defconfig'],
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['BEAGLE', 'omap3_beagle_defconfig'],
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['PBA8', 'realview_defconfig'],
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['PBA9', 'realview-smp_defconfig'],
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['PB11MPCORE', 'realview-smp_defconfig'],)
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def build_linux(self, config):
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print '\nBuilding the linux kernel...'
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os.chdir(self.LINUX_KERNELDIR)
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if not os.path.exists(self.LINUX_KERNEL_BUILDDIR):
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os.makedirs(self.LINUX_KERNEL_BUILDDIR)
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self.kernel_updater.modify_kernel_config()
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self.kernel_updater.update_kernel_params(self.container)
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self.kernel_updater.modify_register_values(config, self.container)
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for platform, config_file in self.platform_config_file:
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if platform == config.platform.upper():
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configuration_file = config_file
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os.system("make ARCH=codezero CROSS_COMPILE=" + config.toolchain + \
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" O=" + self.LINUX_KERNEL_BUILDDIR + " " + configuration_file)
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os.system("make defconfig ARCH=arm O=" + self.LINUX_KERNEL_BUILDDIR)
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os.system("make ARCH=arm " + \
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"CROSS_COMPILE=" + config.user_toolchain + " O=" + \
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self.kernel_updater.modify_kernel_config(self.LINUX_KERNEL_BUILDDIR)
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self.kernel_updater.update_kernel_params(config, self.container)
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os.system("make ARCH=codezero CROSS_COMPILE=" + config.toolchain + \
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" O=" + self.LINUX_KERNEL_BUILDDIR + " menuconfig")
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os.system("make ARCH=codezero " + \
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"CROSS_COMPILE=" + config.toolchain + " O=" + \
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self.LINUX_KERNEL_BUILDDIR)
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# Generate kernel_image, elf to be used by codezero
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linux_elf_gen_cmd = ("arm-none-linux-gnueabi-objcopy -R .note \
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linux_elf_gen_cmd = (config.toolchain + "objcopy -R .note \
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-R .note.gnu.build-id -R .comment -S --change-addresses " + \
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str(conv_hex(-self.container.linux_page_offset + self.container.linux_phys_offset)) + \
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" " + self.kernel_binary_image + " " + self.kernel_image)
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