12 Core image size limitation

Heavily limited platforms:

• i386-pc (normal and PXE): the core image size (compressed) is limited by 458240 bytes. kernel.img (.text + .data + .bss, uncompressed) is limited by 392704 bytes. module size (uncompressed) + kernel.img (.text + .data, uncompressed) is limited by the size of contiguous chunk at 1M address.
• sparc64-ieee1275: kernel.img (.text + .data + .bss) + modules + 256K (stack) + 2M (heap) is limited by space available at 0x4400. On most platforms it’s just 3 or 4M since ieee1275 maps only so much.
• i386-ieee1275: kernel.img (.text + .data + .bss) + modules is limited by memory available at 0x10000, at most 596K

Lightly limited platforms:

• *-xen: limited only by adress space and RAM size.
• i386-qemu: kernel.img (.text + .data + .bss) is limited by 392704 bytes. (core.img would be limited by ROM size but it’s unlimited on qemu
• All EFI platforms: limited by contiguous RAM size and possibly firmware bugs
• Coreboot and multiboot. kernel.img (.text + .data + .bss) is limited by 392704 bytes. module size is limited by the size of contiguous chunk at 1M address.
• mipsel-loongson (ELF), mips(el)-qemu_mips (ELF): if uncompressed: kernel.img (.text + .data) + modules is limited by the space from 80200000 forward if compressed: kernel.img (.text + .data, uncompressed) + modules (uncompressed) + (modules + kernel.img (.text + .data)) (compressed) + decompressor is limited by the space from 80200000 forward
• mipsel-loongson (Flash), mips(el)-qemu_mips (Flash): kernel.img (.text + .data) + modules is limited by the space from 80200000 forward core.img (final) is limited by flash size (512K on yeeloong and fulooong)
• mips-arc: if uncompressed: kernel.img (.text + .data) is limited by the space from 8bd00000 forward modules + dummy decompressor is limited by the space from 8bd00000 backward if compressed: kernel.img (.text + .data, uncompressed) is limited by the space from 8bd00000 forward modules (uncompressed) + (modules + kernel.img (.text + .data)) (compressed, aligned to 1M) + 1M (decompressor + scratch space) is limited by the space from 8bd00000 backward
• powerpc-ieee1275: kernel.img (.text + .data + .bss) + modules is limited by space available at 0x200000