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001 001 002 Contents of the extra/ directory 002 Contents of the extra/ directory 003 ================================ 003 ================================ 004 004 005 Data and configuration files to support genera 005 Data and configuration files to support generation of sos on non-x86 006 and/or grub-less hosts: 006 and/or grub-less hosts: 007 - dot.mkvars: file to copy as .mkvars in the 007 - dot.mkvars: file to copy as .mkvars in the root directory to 008 compile on a non-x86 host, and to generate 008 compile on a non-x86 host, and to generate the grub floppy image on 009 a grub-less host 009 a grub-less host 010 - grub.img.gz: compressed image of a Grub flo 010 - grub.img.gz: compressed image of a Grub floppy (without any 011 kernel). Used by dot.mkvars. 011 kernel). Used by dot.mkvars. 012 - mtoolsrc: file needed by .mkvars to compile 012 - mtoolsrc: file needed by .mkvars to compile a the floppy image 013 013 014 Support of a sos-specific boot sector: 014 Support of a sos-specific boot sector: 015 - Makefile: rules to compile sos_bsect.img, t 015 - Makefile: rules to compile sos_bsect.img, the floppy image with the 016 boot sector and the Sos 016 boot sector and the Sos 017 - bootsect.S: x86 Sos boot sector (GNU as). D 017 - bootsect.S: x86 Sos boot sector (GNU as). Depends on sos_bsect.lds 018 - sos_bsect.lds: ld script to bind the boot s 018 - sos_bsect.lds: ld script to bind the boot sector with the remaining 019 of the kernel 019 of the kernel 020 020 021 Misc: 021 Misc: 022 - patch-qemu-port-e9.diff: patch over qemu to 022 - patch-qemu-port-e9.diff: patch over qemu to support the bochs "port 023 0xe9 hack" 023 0xe9 hack" 024 - patch-qemu-pty.diff: patch over qemu to fix 024 - patch-qemu-pty.diff: patch over qemu to fix a bug related to the 025 handling of the "-monitor pty" and "-serial 025 handling of the "-monitor pty" and "-serial pty" options 026 - termslave.c: Linux program to dial with qem 026 - termslave.c: Linux program to dial with qemu's monitor (or serial 027 line) from within a terminal. See comments 027 line) from within a terminal. See comments in the beginning 028 028 029 029 030 What you can do with these files 030 What you can do with these files 031 ================================ 031 ================================ 032 032 033 033 034 *** Compile SOS from another architecture: 034 *** Compile SOS from another architecture: 035 ------------------------------------------ 035 ------------------------------------------ 036 - compile a cross-compiler for the i586-gnu t 036 - compile a cross-compiler for the i586-gnu target. This involves 037 compiling the binutils and gcc. Here are ex 037 compiling the binutils and gcc. Here are example configuration 038 options for them: 038 options for them: 039 binutils (replace sparc-cun-solaris with yo 039 binutils (replace sparc-cun-solaris with your arch): 040 ../binutils-2.13/configure --prefix=/udd/ 040 ../binutils-2.13/configure --prefix=/udd/ddecotig/temp_dd/xgcc/host-sparc-solaris7/stow/binutils-2.11 --host=sparc-sun-solaris2.7 i586-gnu 041 make && make install 041 make && make install 042 gcc (ditto): 042 gcc (ditto): 043 CFLAGS="-O2 -Dinhibit_libc" ../gcc-3.2/co 043 CFLAGS="-O2 -Dinhibit_libc" ../gcc-3.2/configure --target=i586-gnu --prefix=/udd/ddecotig/temp_dd/xgcc/host-sparc-solaris7/stow/gcc-3.2 --with-as=/udd/ddecotig/temp_dd/xgcc/host-sparc-solaris7/bin/as --with-ld=/udd/ddecotig/temp_dd/xgcc/host-sparc-solaris7/bin/ld --with-gnu-as --with-gnu-ld --enable-languages=c --disable-shared --disable-multilib --disable-nls --enable-threads=single 044 make && make install 044 make && make install 045 - compile the mtools 045 - compile the mtools 046 - copy dot.mkvars to the root directory of SO 046 - copy dot.mkvars to the root directory of SOS, as ".mkvars" 047 - customize the CC/LD/... variables to suit y 047 - customize the CC/LD/... variables to suit your cross-compiler 048 installatioon 048 installatioon 049 - now you may run make from the SOS root dire 049 - now you may run make from the SOS root directory, it should 050 generate the Grub boot floppy image. The fo 050 generate the Grub boot floppy image. The following warning is 051 normal: 051 normal: 052 .mkvars:16: attention : écrasement des co 052 .mkvars:16: attention : écrasement des commandes pour la cible « grub-sos.img » 053 Makefile:92: attention : anciennes comman 053 Makefile:92: attention : anciennes commandes ignorées pour la cible « grub-sos.img » 054 054 055 055 056 *** To compile SOS from an x86 where grub is n 056 *** To compile SOS from an x86 where grub is not or incorrectly installed: 057 ---------------------------------------------- 057 -------------------------------------------------------------------------- 058 - copy dot.mkvars to the root directory of SO 058 - copy dot.mkvars to the root directory of SOS, as ".mkvars" 059 - customize the CC/LD/... variables to suit y 059 - customize the CC/LD/... variables to suit your cross-compiler 060 installatioon 060 installatioon 061 - now you may run make from the SOS root dire 061 - now you may run make from the SOS root directory, it should 062 generate the Grub boot floppy image. The fo 062 generate the Grub boot floppy image. The following warning is 063 normal: 063 normal: 064 .mkvars:16: attention : écrasement des co 064 .mkvars:16: attention : écrasement des commandes pour la cible « grub-sos.img » 065 Makefile:92: attention : anciennes comman 065 Makefile:92: attention : anciennes commandes ignorées pour la cible « grub-sos.img » 066 066 067 067 068 *** To compile SOS with its own bootloader: 068 *** To compile SOS with its own bootloader: 069 ------------------------------------------- 069 ------------------------------------------- 070 - for cross-architecture compilation: see abo 070 - for cross-architecture compilation: see above 071 - cd to this extra/ directory 071 - cd to this extra/ directory 072 - run 'make' 072 - run 'make' 073 - the floppy image is: sos_bsect.img for use 073 - the floppy image is: sos_bsect.img for use with bochs or on a real 074 floppy disk 074 floppy disk 075 to use the image under qemu: use sos_qemu.i 075 to use the image under qemu: use sos_qemu.img 076 076 077 NOTE : From article 2 onward, be warned that 077 NOTE : From article 2 onward, be warned that using this bootsect 078 might lead to system crashes. This wou 078 might lead to system crashes. This would be because the 079 solution we use to retrieve the RAM si 079 solution we use to retrieve the RAM size might not work 080 properly on some systems (BIOS buggy o 080 properly on some systems (BIOS buggy or more than 1G RAM). THE 081 best way to boot SOS is always to use 081 best way to boot SOS is always to use Grub. 082 082 083 083 084 -- 084 -- 085 David Decotigny 085 David Decotigny
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