coreboot January 2005

coreboot@coreboot.org

43 participants
155 discussions

About va_start in the U-Boot
by Aubrey 04 Jan '05

04 Jan '05

Hi, I get a big headache when porting u-boot to the MPC8540 system. the problem is in the "printf" function of the "console.c" file, the following is the dump file ------------------------------------------------------------------------ void printf (const char *fmt, ...) { fff99308: 94 21 fe 50 stwu r1,-432(r1) fff9930c: 7c 08 02 a6 mflr r0 fff99310: 90 01 01 b4 stw r0,436(r1) fff99314: 39 61 00 0c addi r11,r1,12 va_list args; uint i; char printbuffer[CFG_PBSIZE]; va_start (args, fmt); fff99318: 38 00 00 01 li r0,1 fff9931c: 7c 8b e5 aa stswi r4,r11,28 fff99320: 98 01 00 70 stb r0,112(r1) fff99324: bf 81 01 a0 stmw r28,416(r1) fff99328: 38 00 00 00 li r0,0 ... ... ... ... ... ... ... -------------------------------------------------------------------------- when I traced into this function, unexpected interrupt occurs on the "fff99318 38 00 00 01 li r0,1" and the compiling log is as follows: ppc-linux-gcc -g -Os -fPIC -ffixed-r14 -meabi -D__KERNEL__ -DTEXT_BASE=0xfff80000 -I/home/aubrey/ppc-linux/u-boot/include -fno-builtin -ffreestanding -nostdinc -isystem /home/aubrey/ppc-linux/eldk/usr/bin/../lib/gcc-lib/ppc-linux/3.3.3/include -pipe -DCONFIG_PPC -D__powerpc__ -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2 -ffixed-r29 -Wa,-me500 -msoft-float -DCONFIG_MPC85xx=1 -DCONFIG_MPC8540=1 -DCONFIG_E500=1 -Wall -Wstrict-prototypes -c -o console.o console.c I don't know how to solve this problem. Any comment and suggestion will be welcome!

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RE: Etherboot and Linuxbios
by YhLu 04 Jan '05

04 Jan '05

Please let me know if you want me to send you one prebuilt image. YH -----Original Message----- From: Gin [mailto:ginlin@nexcom.com.tw] Sent: Tuesday, January 04, 2005 2:51 AM To: YhLu; linuxbios(a)clustermatic.org Subject: Etherboot and Linuxbios Now my linuxbios found the ELF file created by Etherboot and tried to jump to it. But it hangs afterward. This is the debug output from linuxbios. It loads 2 seg from the ELF file. But in a objdump on the ELF file. There is only one seg and the loading addr is different. ===================================================== New segment addr 0x20000 size 0x114c8 offset 0xb0 filesize 0x8c4c Loading Segment: addr: 0x000000003ffd4000 memsz: 0x0000000000008000 filesz: 0x0000000000008000 Loading Segment: addr: 0x0000000000028000 memsz: 0x00000000000094c8 filesz: 0x0000000000000c4c Clearing Segment: addr: 0x0000000000028c4c memsz: 0x000000000000887c ========================================================= Program Header: NOTE off 0x00000074 vaddr 0x00000074 paddr 0x00000074 align 2**0 filesz 0x0000003c memsz 0x0000003c flags rwx LOAD off 0x000000b0 vaddr 0x00020000 paddr 0x00020000 align 2**0 filesz 0x00008c4c memsz 0x000114c8 flags rwx Sections: Idx Name Size VMA LMA File off Algn =================================================

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About mpc8540 problem
by Aubrey 03 Jan '05

03 Jan '05

Hi, I'm porting the u-boot to the MPC8540SK board. And Now I get a problem. When I run to the "printf" function, unexpected interruption occurs. Then I trace into the assemble file. I found that something wrong with the function "va_start","va_end". I know that these defines may be include by the stdarg.h file. But in the u-boot file tree, I can not find this file. Does u-boot use the file of my host system? I don't know how to solve this problem. Any comment and suggestion will be welcome! thank you!

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mptable.c
by Stefan Reinauer 03 Jan '05

03 Jan '05

Hi, I've dumped an mptable with the mptable utility of LinuxBIOS v2. I'm getting this at some point: MP Config Extended Table Entries: -- System Address Space bus ID: 0 address type: I/O address address base: 0x9000 address range: 0x2000 -- System Address Space bus ID: 0 address type: I/O address address base: 0x0 address range: 0x100 -- System Address Space bus ID: 0 address type: memory address address base: 0xa0000 address range: 0x20000 -- System Address Space bus ID: 0 address type: memory address address base: 0xaed00000 address range: 0x2200000 -- System Address Space bus ID: 0 address type: prefetch address address base: 0xb0f00000 address range: 0x100000 Am I supposed to delete it, or am I supposed to look up what it means and implement it in mptable.c so LinuxBIOS can use it? It won't compile like this, at least ;-) Stefan

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RE: Etherboot and Linuxbios
by YhLu 03 Jan '05

03 Jan '05

Try 5.2.6 at first. YH -----Original Message----- From: Gin [mailto:ginlin@nexcom.com.tw] Sent: Sunday, January 02, 2005 9:49 PM To: linuxbios(a)clustermatic.org Subject: Etherboot and Linuxbios Etherboot version used: 5.3.11 I am trying to build a Etherboot image to work with Linuxbios but got a compile error. There are couple undefined references to some functions due to the settings in the Config file. I commented out the PCBIOS option, and define the following. -DLINUXBIOS -DCONFIG_TSC_CURRTICKS -DCONSOLE_SERIAL -DCOMCONSOLE=0x3f8 -DCOMPRESERVE -DCONFIG_PCI_DIRECT -DELF_IMAGE -DPXE_IMAGE -DPXE_EXPORT p.s The undefined reference is due to the undefined PCBIOS. _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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coreboot January 2005