49 lines
2.4 KiB
Plaintext
49 lines
2.4 KiB
Plaintext
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
|
|
|