Messages in this thread |  | | From | "David L. Oppenheimer" <> | Subject | How to compile an a.out Linux 2.0 kernel? | Date | Sat, 26 Oct 1996 11:08:32 -0400 |
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I am trying to compile Linux 2.0.23 in a.out format. I am compiling on a 2.0.19 system running gcc version 2.7.2. When I compile, things look fine until the very end, when I get:
ld -qmagic -Ttext 0xfffe0 arch/i386/kernel/head.o init/main.o init/version.o \ arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a \ fs/filesystems.a \ drivers/block/block.a drivers/char/char.a drivers/net/net.a drivers/scsi/scsi.a drivers/pci/pci.a \ /home/davido/work/linux/arch/i386/lib/lib.a /home/davido/work/linux/lib/lib.a /home/davido/work/linux/arch/i386/lib/lib.a -o vmlinux ld: warning: cannot find entry symbol _start; defaulting to 000fffe0 [...] ./xtract /home/davido/work/linux/vmlinux | gzip -9 | ./piggyback > piggy.o Non-GCC header of 'system' Compressed size 20. gcc -D__KERNEL__ -I/home/davido/work/linux/include -traditional -c head.S gcc -D__KERNEL__ -I/home/davido/work/linux/include -O2 -DSTDC_HEADERS -c misc.c -o misc.o ld -qmagic -Ttext 0xfe0 -o vmlinux head.o misc.o piggy.o ld: warning: cannot find entry symbol _start; defaulting to 00000fe0 misc.o: In function `fill_inbuf': misc.o(.text+0x1c18): undefined reference to `input_data' misc.o(.text+0x1c1d): undefined reference to `input_len' misc.o(.text+0x1c33): undefined reference to `input_data' make[2]: *** [vmlinux] Error 1
I'm not sure if the "cannot find entry symbol _start; defaulting to 000fffe0", "cannot find entry symbol _start; defaulting to 00000fe0", and "Non-GCC header of 'system'" messages indicate a problem (do they?), but certainly the "undefined reference" in misc.o is bad news.
Does anyone know what's going wrong here?
Many thanks for any suggestions.
David Oppenheimer davido@CS.Princeton.EDU
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