Usually to get around the ELF header you add 0x10000 to the start address. As an example, if you download the kernel to address 0x00400000 you would start at address 0x00410000.
Also, I have had luck with the http://ppc.bkbits.net:8080/linuxppc_2_4_devel tree on the ep405. -----Original Message----- From: [EMAIL PROTECTED] [mailto:Phillip.Treddenick at colorado.edu] Sent: Thursday, February 13, 2003 3:07 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Trouble running hardhat linux on EP405 Folks, I'm trying to run a hardhat kernel on an EP405 board which has an IBM PPC405GP. I'm able to download the kernel to the board and verify it's there using a boot loader program. The problem is that as soon as I jump to a location in the code, the board resets. So, what I really need to know is what the starting address for my kernel build is. Does anybody know how I can determine this? Here is some info from the elf header if that helps. Thanks, Phill Treddenick treddeni at colorado.edu ELF Header: ??Magic: ? 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00 ??Class: ? ? ? ? ? ? ? ? ? ? ? ? ? ? ELF32 ??Data: ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?2's complement, big endian ??Version: ? ? ? ? ? ? ? ? ? ? ? ? ? 1 (current) ??OS/ABI: ? ? ? ? ? ? ? ? ? ? ? ? ? ?UNIX - System V ??ABI Version: ? ? ? ? ? ? ? ? ? ? ? 0 ??Type: ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?EXEC (Executable file) ??Machine: ? ? ? ? ? ? ? ? ? ? ? ? ? PowerPC ??Version: ? ? ? ? ? ? ? ? ? ? ? ? ? 0x1 ??Entry point address: ? ? ? ? ? ? ? 0xc0000000 ??Start of program headers: ? ? ? ? ?52 (bytes into file) ??Start of section headers: ? ? ? ? ?1698512 (bytes into file) ??Flags: ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0x0 ??Size of this header: ? ? ? ? ? ? ? 52 (bytes) ??Size of program headers: ? ? ? ? ? 32 (bytes) ??Number of program headers: ? ? ? ? 1 ??Size of section headers: ? ? ? ? ? 40 (bytes) ??Number of section headers: ? ? ? ? 20 ??Section header string table index: 17 Section Headers: ??[Nr] Name ? ? ? ? ? ? ?Type ? ? ? ? ? ?Addr ? ? Off ? ?Size ? ES Flg Lk Inf Al ??[ 0] ? ? ? ? ? ? ? ? ? NULL ? ? ? ? ? ?00000000 000000 000000 00 ? ? ?0 ? 0 ?0 ??[ 1] .text ? ? ? ? ? ? PROGBITS ? ? ? ?c0000000 010000 10ef9c 00 ?AX ?0 ? 0 32 ??[ 2] .text.exit ? ? ? ?PROGBITS ? ? ? ?c010ef9c 11ef9c 0005e0 00 ?AX ?0 ? 0 ?4 ??[ 3] .rodata ? ? ? ? ? PROGBITS ? ? ? ?c010f580 11f580 031470 00 ? A ?0 ? 0 16 ??[ 4] .kstrtab ? ? ? ? ?PROGBITS ? ? ? ?c01409f0 1509f0 003cb0 00 ? A ?0 ? 0 ?4 ??[ 5] .data ? ? ? ? ? ? PROGBITS ? ? ? ?c0145000 155000 0140a4 00 ?WA ?0 ? 0 16 ??[ 6] .exitcall.exit ? ?PROGBITS ? ? ? ?c01590a4 1690a4 000044 00 ?WA ?0 ? 0 ?4 ??[ 7] __ex_table ? ? ? ?PROGBITS ? ? ? ?c01590e8 1690e8 000dc0 00 ? A ?0 ? 0 ?4 ??[ 8] __ksymtab ? ? ? ? PROGBITS ? ? ? ?c0159ea8 169ea8 001d88 00 ? A ?0 ? 0 ?4 ??[ 9] .data.cacheline_a PROGBITS ? ? ? ?c015bc40 16bc40 000700 00 ?WA ?0 ? 0 32 ??[10] .text.init ? ? ? ?PROGBITS ? ? ? ?c015d000 16d000 00f45c 00 ?AX ?0 ? 0 ?4 ??[11] .data.init ? ? ? ?PROGBITS ? ? ? ?c016c45c 17c45c 01d6d8 00 ?WA ?0 ? 0 ?4 ??[12] .setup.init ? ? ? PROGBITS ? ? ? ?c0189b40 199b40 0000d8 00 ?WA ?0 ? 0 ?4 ??[13] .initcall.init ? ?PROGBITS ? ? ? ?c0189c18 199c18 000074 00 ?WA ?0 ? 0 ?4 ??[14] .text.openfirmwar PROGBITS ? ? ? ?c018a000 19a000 000010 00 ?AX ?0 ? 0 ?4 ??[15] .bss ? ? ? ? ? ? ?NOBITS ? ? ? ? ?c018b000 19b000 026850 00 ?WA ?0 ? 0 32 ??[16] .comment ? ? ? ? ?PROGBITS ? ? ? ?00000000 19b000 0039ff 00 ? ? ?0 ? 0 ?1 ??[17] .shstrtab ? ? ? ? STRTAB ? ? ? ? ?00000000 19e9ff 0000d1 00 ? ? ?0 ? 0 ?1 ??[18] .symtab ? ? ? ? ? SYMTAB ? ? ? ? ?00000000 19edf0 036050 10 ? ? 19 2326 4 ??[19] .strtab ? ? ? ? ? STRTAB ? ? ? ? ?00000000 1d4e40 0394f3 00 ? ? ?0 ? 0 ?1 Key to Flags: ??W (write), A (alloc), X (execute), M (merge), S (strings) ??I (info), L (link order), G (group), x (unknown) ??O (extra OS processing required) o (OS specific), p (processor specific) Program Header: ??Type ? ? ? ? ? Offset ? VirtAddr ? PhysAddr ? FileSiz MemSiz ?Flg Align ??LOAD ? ? ? ? ? 0x010000 0xc0000000 0xc0000000 0x18a010 0x1b1850 RWE 0x10000 ?Section to Segment mapping: ??Segment Sections... ?? 00 ? ? .text .text.exit .rodata .kstrtab .data .exitcall.exit __ex_table __ksymtab .data.cacheline_aligned .text.init .data.init .setup.init .initcall.init .text.openfirmware .bss ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
