Messages in this thread | | | From | (Eric W. Biederman) | Subject | Re: Re : [PATCH] Compressed ia32 ELF file generation for loading by Gujin 1/3 | Date | Thu, 08 Feb 2007 04:20:10 -0700 |
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Etienne Lorrain <etienne_lorrain@yahoo.fr> writes:
>> Currently relocation information is extracted from vmlinux and packed in >> final bzImage after some processing. After execution of real mode code >> and once the image is decompressed, all the relocations are performed and >> then control is transferred to kernel. > > So here you are not really using the initial ELF program header of vmlinux, > but more the section header and my PT_LOAD section bother you, I better > understand. You cannot really claim you are only doing standard/usual > ELF treatment.
The difference is that a boot loader is not doing the work. The format is. Compiling -fPIC almost gets us there except ld has bugs processing absolute symbols.
Anything we expect a bootloader to do need to be as close as possible to the usual ELF treatment.
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