| 1 | subdir('arch' / BARCH)
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| 2 |
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| 3 | if POSTBUILD == 'uboot'
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| 4 | boot_image_format = 'binary'
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| 5 | endif
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| 6 |
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| 7 | if BUILD
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| 8 | # Order matters.
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| 9 | modules = [ 'boot/kernel.elf' ] + rd_init + [ 'boot/initrd.img' ]
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| 10 | moddeps = []
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| 11 | name_transform = ''
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| 12 |
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| 13 | # Collect binary references in the correct order.
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| 14 | foreach m : modules
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| 15 | found = false
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| 16 | foreach bin : rd_init_binaries
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| 17 | if bin[1] == m
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| 18 | _dep = bin[0]
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| 19 | _newname = run_command(basename, bin[1], check: true).stdout().strip()
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| 20 | _oldname = run_command(basename, bin[0].full_path(), check: true).stdout().strip()
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| 21 |
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| 22 | if CONFIG_COMPRESSED_INIT
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| 23 | _dep = custom_target(_newname + '.gz',
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| 24 | output: _newname + '.gz',
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| 25 | input: _dep,
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| 26 | command: gzip,
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| 27 | capture: true,
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| 28 | )
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| 29 | _newname += '.gz'
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| 30 | _oldname = _newname
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| 31 | endif
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| 32 |
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| 33 | moddeps += _dep
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| 34 | name_transform += 's:.*/@0@:@1@:;'.format(_oldname, _newname)
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| 35 | found = true
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| 36 | break
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| 37 | endif
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| 38 | endforeach
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| 39 |
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| 40 | if not found
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| 41 | error('Could not find dependency ' + m)
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| 42 | endif
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| 43 | endforeach
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| 44 |
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| 45 |
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| 46 | boot_include_dirs = include_directories(
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| 47 | 'generic/include',
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| 48 | 'arch'/BARCH/'include',
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| 49 | 'genarch/include',
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| 50 | '../abi/arch'/BARCH/'include',
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| 51 | '../abi/include',
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| 52 | )
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| 53 |
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| 54 | boot_defs = [
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| 55 | '-imacros', meson.build_root() / 'config.h',
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| 56 | '-D_HELENOS_SOURCE',
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| 57 | '-DBOOT',
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| 58 | '-DRELEASE=' + HELENOS_RELEASE,
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| 59 | '-DCOPYRIGHT=' + HELENOS_COPYRIGHT,
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| 60 | '-DNAME=' + HELENOS_NAME,
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| 61 | '-D__@0@_BITS__'.format(meson.get_cross_property('bits')),
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| 62 | ]
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| 63 |
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| 64 | boot_c_args = arch_boot_c_args + boot_defs + [
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| 65 | '-ffreestanding',
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| 66 | ]
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| 67 |
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| 68 | boot_link_args = arch_boot_link_args + [
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| 69 | '-nostdlib',
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| 70 | '-Wl,--nmagic',
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| 71 | '-T', meson.current_build_dir()/'_link.ld',
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| 72 | '-Wl,--no-gc-sections',
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| 73 | ]
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| 74 |
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| 75 | if cc.get_id() == 'clang'
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| 76 | boot_c_args += [
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| 77 | '-fno-stack-protector',
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| 78 | '-fno-PIC',
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| 79 | # '-mllvm', '-asm-macro-max-nesting-depth=1000',
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| 80 | ]
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| 81 | endif
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| 82 |
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| 83 | boot_files = static_library('bootfiles', boot_src,
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| 84 | include_directories: boot_include_dirs,
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| 85 | implicit_include_directories: false,
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| 86 | c_args: boot_c_args,
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| 87 | pic: false,
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| 88 | build_by_default: true,
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| 89 | )
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| 90 |
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| 91 | # Preprocess linker script using C preprocessor.
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| 92 | boot_ldscript = custom_target('_link.ld',
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| 93 | input: 'arch'/KARCH/'_link.ld.in',
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| 94 | output: '_link.ld',
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| 95 | command: [
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| 96 | cc.cmd_array(),
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| 97 | boot_c_args,
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| 98 | '-I' + meson.current_source_dir()/'arch'/KARCH/'include',
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| 99 | '-D__ASSEMBLER__',
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| 100 | '-D__LINKER__',
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| 101 | '-E',
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| 102 | '-P',
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| 103 | '-x', 'c',
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| 104 | '@INPUT@',
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| 105 | ],
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| 106 | capture: true,
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| 107 | build_by_default: true
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| 108 | )
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| 109 |
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| 110 | # Create empty object file.
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| 111 | boot_empty_o = custom_target('empty.o',
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| 112 | output: 'empty.o',
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| 113 | command: [
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| 114 | cc.cmd_array(),
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| 115 | boot_c_args,
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| 116 | '-x', 'c',
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| 117 | '-c',
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| 118 | '-o', '@OUTPUT@',
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| 119 | '-',
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| 120 | ],
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| 121 | )
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| 122 |
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| 123 | boot_comps_tar = custom_target('components.tar',
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| 124 | input: moddeps,
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| 125 | output: 'components.tar',
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| 126 | command: [ tar, '--transform', name_transform ],
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| 127 | )
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| 128 |
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| 129 | # Add .payload section to the empty object.
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| 130 | boot_comps_o = custom_target('components.o',
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| 131 | output: 'components.o',
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| 132 | input: [ boot_comps_tar, boot_empty_o ],
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| 133 | command: [
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| 134 | objcopy,
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| 135 | '--add-section', '.payload=@INPUT0@',
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| 136 | '@INPUT1@',
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| 137 | '@OUTPUT@',
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| 138 | ],
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| 139 | )
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| 140 |
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| 141 | boot_image_name = 'image.boot'
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| 142 | boot_image_map_path = meson.current_build_dir()/boot_image_name + '.map'
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| 143 |
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| 144 | boot_elf = executable(boot_image_name + '.elf', boot_comps_o,
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| 145 | include_directories: boot_include_dirs,
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| 146 | c_args: boot_c_args,
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| 147 | link_args: boot_c_args + boot_link_args + [
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| 148 | '-Wl,-Map,' + boot_image_map_path,
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| 149 | ],
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| 150 | link_depends: boot_ldscript,
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| 151 | link_whole: boot_files,
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| 152 | pie: false,
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| 153 | build_by_default: false,
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| 154 | )
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| 155 |
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| 156 | if boot_image_format == 'elf'
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| 157 | boot_image = boot_elf
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| 158 | endif
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| 159 |
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| 160 | if boot_image_format == 'binary'
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| 161 | # Some platforms can't ELF.
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| 162 | boot_image = custom_target(boot_image_name + '.bin',
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| 163 | input: boot_elf,
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| 164 | output: boot_image_name + '.bin',
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| 165 | command: [ objcopy, '-O', 'binary', '@INPUT@', '@OUTPUT@' ],
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| 166 | )
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| 167 | endif
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| 168 | endif
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| 169 |
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| 170 | if POSTBUILD == 'raw'
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| 171 | POST_INPUT = boot_image
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| 172 | endif
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| 173 |
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| 174 | if POSTBUILD == 'grub'
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| 175 | subdir('grub')
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| 176 | endif
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| 177 |
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| 178 | if POSTBUILD == 'yaboot'
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| 179 | subdir('yaboot')
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| 180 | endif
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| 181 |
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| 182 | if POSTBUILD == 'silo'
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| 183 | subdir('silo')
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| 184 | endif
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| 185 |
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| 186 | if POSTBUILD == 'uboot'
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| 187 | IMAGE_NAME = 'HelenOS-' + HELENOS_RELEASE
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| 188 |
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| 189 | POST_INPUT = custom_target('uboot-image',
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| 190 | output: 'uboot-image.bin',
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| 191 | input: boot_image,
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| 192 | command: [
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| 193 | mkuimage,
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| 194 | '-name', IMAGE_NAME,
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| 195 | '-laddr', LADDR,
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| 196 | '-saddr', SADDR,
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| 197 | '-ostype', UIMAGE_OS,
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| 198 | '@INPUT@',
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| 199 | '@OUTPUT@',
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| 200 | ],
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| 201 | )
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| 202 | endif
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