OpenBIOS March 2010

openbios@openbios.org

11 participants
56 discussions

starting
by G 3 18 Oct '10

18 Oct '10

I have begun doing work with OpenBIOS. I was wondering if it is possible to compile OpenBIOS for PowerPC on Mac OS X? If not, what Linux distro should I use? Any advice would really help.

6 17

Solaris 9: failed boot with strange device names
by Mark Cave-Ayland 25 Aug '10

25 Aug '10

Hi all, So given that the Fcode evaluator is sorted for Solaris 10, I thought I'd try my original Solaris 9 disk image again and was surprised to find that it didn't boot. Further investigation seems to show that strangely encoded device names are being passed into cif-open which is failing: : get-file ( 6000 ffe35870 27 ) 00000000ffe36378: fname>devname$ 3 > 2dup type /platform/OpenBiosTeam,OpenBIOS/ufsboot ok 3 > resume ok ( 6000 ffe35870 27 ) 00000000ffe36378: fname>devname$ ( 6000 ffe35ee8 2f ) 00000000ffe36380: ufs-fopen 3 > 2dup type cdrom:a,|platform|OpenBiosTeam,OpenBIOS|ufsboot ok 3 > resume ok ( 6000 ffe35ee8 2f ) 00000000ffe36380: ufs-fopen : ufs-fopen ( 6000 ffe35ee8 2f ) 00000000ffe360e8: drop ( 6000 ffe35ee8 ) 00000000ffe360f0: cif-open ( 6000 0 ) 00000000ffe360f8: (semis) : get-file ( 6000 ffe35870 17 ) 00000000ffe36378: fname>devname$ 3 > 2dup type /platform/sun4u/ufsboot ok 3 > resume ok ( 6000 ffe35870 17 ) 00000000ffe36378: fname>devname$ ( 6000 ffe35ee8 1f ) 00000000ffe36380: ufs-fopen 3 > 2dup type cdrom:a,|platform|sun4u|ufsboot ok 3 > resume ok ( 6000 ffe35ee8 1f ) 00000000ffe36380: ufs-fopen : ufs-fopen ( 6000 ffe35ee8 1f ) 00000000ffe360e8: drop ( 6000 ffe35ee8 ) 00000000ffe360f0: cif-open OFMEM: ofmem_claim_virt virt=ffffffffffffffff size=0000000000000200 align=0000000000000001 ( 6000 0 ) 00000000ffe360f8: (semis) It looks as if a special type of device-specifier is being passed into cif-open consisting of a device and argument, a comma, then the actual filename required with /s replaced by |s. Is this some kind of special syntax that needs to be taught to the dev word and/or cif-open words? ATB, Mark. -- Mark Cave-Ayland - Senior Technical Architect PostgreSQL - PostGIS Sirius Corporation plc - control through freedom http://www.siriusit.co.uk t: +44 870 608 0063 Sirius Labs: http://www.siriusit.co.uk/labs

3 10

QEMU OpenBIOS booting?
by Steven Noonan 24 May '10

24 May '10

Hi folks, I've been trying to use OpenBIOS with QEMU, and I've had trouble getting it to boot any PowerPC-based OS discs (Linux, Mac OS X, etc). OpenBIOS just doesn't seem to find anything bootable. If I try booting QEMU with -nographic, I get this output (I get the same with a self-built openbios-qemu.elf from the OpenBIOS SVN as well): ---- snip ---- >> ============================================================= >> OpenBIOS 1.0 [Apr 12 2009 00:55] >> Configuration device id QEMU version 1 machine id 1 >> CPUs: 1 >> Memory: 128M >> UUID: 00000000-0000-0000-0000-000000000000 >> CPU type PowerPC,970FX Welcome to OpenBIOS v1.0 built on Apr 12 2009 00:55 >> ELF - yaboot_startup: Entering boot, no path >> ELF - try_bootinfo: Trying hd:0,ppc\bootinfo.txt >> ELF - try_bootinfo: Can't open hd:0,ppc\bootinfo.txt >> ELF - try_path: Trying hd:2,\ofclient >> ELF - try_path: Can't open hd:2,\ofclient >> ELF - try_path: Trying hd:2,\yaboot conf=hd:2,\yaboot.conf >> ELF - try_path: Can't open hd:2,\yaboot >> *** Boot failure! No secondary bootloader specified *** ---- snip ---- Laurent Vivier suggested in this conversation in February (http://lists.openbios.org/pipermail/openbios/2009-February/003476.html) that there could be a bug in partition map decoding. Has such a bug been confirmed? I was trying to find the bug myself (I am an experienced C/C++ programmer), but the bug seems to be subtle, and my lack of familiarity with the code base doesn't help much. I've been trying to figure this out for 7 hours straight now... Any advice or other help would be much appreciated! - Steven

13 55

input length
by Artyom Tarasenko 02 Apr '10

02 Apr '10

Meanwhile qemu-system-sparc is good enough to boot most Solaris versions with OBP. ( http://tyom.blogspot.com/2009/12/solaris-under-qemu-how-to.html ) I'm trying to find out what is missing in OpenBIOS to do the same. Currently the boot just hangs. I did a wild guess: $ strings sun4m/ufsboot ... ['] find-device catch if 2drop true else current-device device-end then swap l! ... It looks like all the keywords are known to the OpenBIOS, but I can't input the test string: " /options" ['] find-device catch if 2drop true else current-device device-end then swap l! it is longer than 80 characters, and OpenBIOS lets me enter only the part of the string up to "device-end t". The questions are: - is it just an interactive command line limitation, or an api limitation? - where is it defined? I couldn't find anything useful with grep -r 80 . - is there a forth debugger in OpenBIOS? -- Regards, Artyom Tarasenko solaris/sparc under qemu progress: http://tyom.blogspot.com/

3 6

Re: [OpenBIOS] name of current word
by Programmingkid 02 Apr '10

02 Apr '10

>> Is there a word that can tell me the name of the current word that is executing? >> >> I want something like this: >> >> : myword >> obtainWord >> ; >> >> obtainWord would somehow return "myword". Any tips would be great. > > No, I don't think this is really possible because of the way in which > Forth works (at least I ended up using a different solution for the > debugger anyway). > > Is there a reason that you're not using the in-built debugger for this? > I'm fairly sure it would make your life much easier. I'm making code that will associate a value with a function name and will store both in a table. Thank you Mark and Stefan for helping.

2 1

compile vs runtime
by Programmingkid 31 Mar '10

31 Mar '10

I am trying to make a word that does one thing at compile time, and does another thing at runtime. I think this is how you do it: : myword ." one" does> ." two" cr ; When I first use this word, I see "one". Then when I use this word again, I see "two", but it causes OpenBIOS to panic because of a segmentation violation at 3. Is this an OpenBIOS bug, or did I do something wrong?

4 3

name of current word
by Programmingkid 31 Mar '10

31 Mar '10

Is there a word that can tell me the name of the current word that is executing? I want something like this: : myword obtainWord ; obtainWord would somehow return "myword". Any tips would be great.

3 3

[commit] r720 - in trunk/openbios-devel: arch/unix include/libopenbios libopenbios packages
by repository service 28 Mar '10

28 Mar '10

Author: mcayland Date: Mon Mar 29 01:47:36 2010 New Revision: 720 URL: http://tracker.coreboot.org/trac/openbios/changeset/720 Log: Move the *_init_program() functions into the main loader source files so that everything is in one place. Part of this involves taking the existing parts of the XCOFF loader and putting them into a new loader file xcoff_load.c. Also fix a dependency order change these changes introduce when building openbios-unix. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)siriusit.co.uk> Added: trunk/openbios-devel/include/libopenbios/xcoff_load.h trunk/openbios-devel/libopenbios/xcoff_load.c Modified: trunk/openbios-devel/arch/unix/build.xml trunk/openbios-devel/arch/unix/unix.c trunk/openbios-devel/include/libopenbios/aout_load.h trunk/openbios-devel/include/libopenbios/elf_load.h trunk/openbios-devel/include/libopenbios/fcode_load.h trunk/openbios-devel/include/libopenbios/forth_load.h trunk/openbios-devel/libopenbios/aout_load.c trunk/openbios-devel/libopenbios/build.xml trunk/openbios-devel/libopenbios/elf_load.c trunk/openbios-devel/libopenbios/fcode_load.c trunk/openbios-devel/libopenbios/forth_load.c trunk/openbios-devel/packages/elf-loader.c trunk/openbios-devel/packages/xcoff-loader.c Modified: trunk/openbios-devel/arch/unix/build.xml ============================================================================== --- trunk/openbios-devel/arch/unix/build.xml Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/arch/unix/build.xml Mon Mar 29 01:47:36 2010 (r720) @@ -13,8 +13,8 @@ <object source="blk.c" flags="-DBOOTSTRAP"/> <object source="plugins.c" flags="-DBOOTSTRAP" condition="PLUGINS"/> <external-object source="libbootstrap.a"/> - <external-object source="libopenbios.a"/> <external-object source="libpackages.a"/> + <external-object source="libopenbios.a"/> <external-object source="libdrivers.a"/> <external-object source="libfs.a"/> <external-object source="liblibc.a"/> Modified: trunk/openbios-devel/arch/unix/unix.c ============================================================================== --- trunk/openbios-devel/arch/unix/unix.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/arch/unix/unix.c Mon Mar 29 01:47:36 2010 (r720) @@ -51,6 +51,8 @@ static void exit_terminal(void); void boot(void); +unsigned long virt_offset = 0; + /* local variables */ static ucell *memory; Modified: trunk/openbios-devel/include/libopenbios/aout_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/aout_load.h Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/include/libopenbios/aout_load.h Mon Mar 29 01:47:36 2010 (r720) @@ -22,5 +22,6 @@ extern int is_aout(struct exec *ehdr); extern int aout_load(struct sys_info *info, const char *filename); +extern void aout_init_program(void); #endif /* _H_AOUTLOAD */ Modified: trunk/openbios-devel/include/libopenbios/elf_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/elf_load.h Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/include/libopenbios/elf_load.h Mon Mar 29 01:47:36 2010 (r720) @@ -22,6 +22,7 @@ #include "libopenbios/sys_info.h" extern int elf_load(struct sys_info *info, const char *filename, const char *cmdline, void **boot_notes); +extern void elf_init_program(void); extern int is_elf(Elf_ehdr *ehdr); extern int find_elf(Elf_ehdr *ehdr); Modified: trunk/openbios-devel/include/libopenbios/fcode_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/fcode_load.h Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/include/libopenbios/fcode_load.h Mon Mar 29 01:47:36 2010 (r720) @@ -19,5 +19,6 @@ extern int is_fcode(unsigned char *fcode); extern int fcode_load(const char *filename); +extern void fcode_init_program(void); #endif /* _H_FCODELOAD */ Modified: trunk/openbios-devel/include/libopenbios/forth_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/forth_load.h Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/include/libopenbios/forth_load.h Mon Mar 29 01:47:36 2010 (r720) @@ -19,5 +19,6 @@ extern int is_forth(char *forth); extern int forth_load(const char *filename); +extern void forth_init_program(void); #endif /* _H_FORTHLOAD */ Added: trunk/openbios-devel/include/libopenbios/xcoff_load.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/openbios-devel/include/libopenbios/xcoff_load.h Mon Mar 29 01:47:36 2010 (r720) @@ -0,0 +1,27 @@ +/* + * Creation Date: <2010/03/22 18:00:00 mcayland> + * Time-stamp: <2010/03/22 18:00:00 mcayland> + * + * <xcoff_load.h> + * + * XCOFF loader + * + * Copyright (C) 2010 Mark Cave-Ayland (mark.cave-ayland(a)siriusit.co.uk) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation + * + */ + +#ifndef _H_XCOFFLOAD +#define _H_XCOFFLOAD + +#include "arch/common/xcoff.h" +#include "libopenbios/sys_info.h" + +extern int is_xcoff(COFF_filehdr_t *fhdr); +extern int xcoff_load(struct sys_info *info, const char *filename); +extern void xcoff_init_program(void); + +#endif /* _H_XCOFFLOAD */ Modified: trunk/openbios-devel/libopenbios/aout_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/aout_load.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/libopenbios/aout_load.c Mon Mar 29 01:47:36 2010 (r720) @@ -23,7 +23,8 @@ static char *image_name, *image_version; static int fd; -static int check_mem_ranges(struct sys_info *info, +static int +check_mem_ranges(struct sys_info *info, unsigned long start, unsigned long size) { @@ -58,16 +59,17 @@ return 0; } -int is_aout(struct exec *ehdr) +int +is_aout(struct exec *ehdr) { return ((ehdr->a_info & 0xffff) == OMAGIC || (ehdr->a_info & 0xffff) == NMAGIC || (ehdr->a_info & 0xffff) == ZMAGIC || (ehdr->a_info & 0xffff) == QMAGIC); - } -int aout_load(struct sys_info *info, const char *filename) +int +aout_load(struct sys_info *info, const char *filename) { int retval = -1; struct exec ehdr; @@ -154,3 +156,10 @@ close_io(fd); return retval; } + +void +aout_init_program(void) +{ + // Currently not implemented + feval("0 state-valid !"); +} Modified: trunk/openbios-devel/libopenbios/build.xml ============================================================================== --- trunk/openbios-devel/libopenbios/build.xml Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/libopenbios/build.xml Mon Mar 29 01:47:36 2010 (r720) @@ -14,6 +14,7 @@ <object source="ipchecksum.c"/> <object source="linuxbios_info.c" condition="LINUXBIOS"/> <object source="ofmem_common.c" condition="OFMEM"/> + <object source="xcoff_load.c" condition="LOADER_XCOFF"/> </library> <dictionary name="openbios" target="forth"> Modified: trunk/openbios-devel/libopenbios/elf_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/elf_load.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/libopenbios/elf_load.c Mon Mar 29 01:47:36 2010 (r720) @@ -19,6 +19,10 @@ #define MAX_HEADERS 0x20 #define BS 0x100 /* smallest step used when looking for the ELF header */ +#ifdef CONFIG_PPC +extern void flush_icache_range( char *start, char *stop ); +#endif + /* FreeBSD and possibly others mask the high 8 bits */ #define addr_fixup(addr) ((addr) & 0x00ffffff) @@ -362,7 +366,8 @@ return phdr; } -int elf_load(struct sys_info *info, const char *filename, const char *cmdline, void **boot_notes) +int +elf_load(struct sys_info *info, const char *filename, const char *cmdline, void **boot_notes) { Elf_ehdr ehdr; Elf_phdr *phdr = NULL; @@ -460,3 +465,55 @@ free(image_version); return retval; } + +void +elf_init_program(void) +{ + char *base; + int i; + Elf_ehdr *ehdr; + Elf_phdr *phdr; + size_t size; + char *addr; + cell tmp; + + /* TODO: manage ELF notes section */ + feval("0 state-valid !"); + feval("load-base"); + base = (char*)POP(); + + ehdr = (Elf_ehdr *)base; + phdr = (Elf_phdr *)(base + ehdr->e_phoff); + + for (i = 0; i < ehdr->e_phnum; i++) { + +#if DEBUG + debug("filesz: %08lX memsz: %08lX p_offset: %08lX " + "p_vaddr %08lX\n", + (ulong)phdr[i].p_filesz, (ulong)phdr[i].p_memsz, + (ulong)phdr[i].p_offset, (ulong)phdr[i].p_vaddr ); +#endif + + size = MIN(phdr[i].p_filesz, phdr[i].p_memsz); + if (!size) + continue; +#if 0 + if( ofmem_claim( phdr[i].p_vaddr, phdr[i].p_memsz, 0 ) == -1 ) { + printk("Claim failed!\n"); + return; + } +#endif + /* Workaround for archs where sizeof(int) != pointer size */ + tmp = phdr[i].p_vaddr; + addr = (char *)tmp; + + memcpy(addr, base + phdr[i].p_offset, size); +#ifdef CONFIG_PPC + flush_icache_range( addr, addr + size ); +#endif + } + /* FIXME: should initialize saved-program-state. */ + PUSH(ehdr->e_entry); + feval("elf-entry !"); + feval("-1 state-valid !"); +} Modified: trunk/openbios-devel/libopenbios/fcode_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/fcode_load.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/libopenbios/fcode_load.c Mon Mar 29 01:47:36 2010 (r720) @@ -13,16 +13,18 @@ static int fd; -int is_fcode(unsigned char *fcode) +int +is_fcode(unsigned char *fcode) { - return (fcode[0] == 0xf0 // start0 + return (fcode[0] == 0xf0 // start0 || fcode[0] == 0xf1 // start1 || fcode[0] == 0xf2 // start2 || fcode[0] == 0xf3 // start4 || fcode[0] == 0xfd); // version1 } -int fcode_load(const char *filename) +int +fcode_load(const char *filename) { int retval = -1; uint8_t fcode_header[8]; @@ -84,3 +86,16 @@ close_io(fd); return retval; } + +void +fcode_init_program(void) +{ + /* If the payload is Fcode then we execute it immediately */ + ucell address; + + fword("load-base"); + address = POP(); + PUSH(address); + PUSH(1); + fword("byte-load"); +} Modified: trunk/openbios-devel/libopenbios/forth_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/forth_load.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/libopenbios/forth_load.c Mon Mar 29 01:47:36 2010 (r720) @@ -78,3 +78,10 @@ // free(forthtext); return retval; } + +void +forth_init_program(void) +{ + // Currently not implemented + feval("0 state-valid !"); +} Added: trunk/openbios-devel/libopenbios/xcoff_load.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/openbios-devel/libopenbios/xcoff_load.c Mon Mar 29 01:47:36 2010 (r720) @@ -0,0 +1,141 @@ +/* + * + * <xcoff_load.c> + * + * XCOFF file loader + * + * Copyright (C) 2009 Laurent Vivier (Laurent(a)vivier.eu) + * + * from original XCOFF loader by Steven Noonan <steven(a)uplinklabs.net> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 + * + */ + +#include "config.h" +#include "libopenbios/bindings.h" +#include "libopenbios/xcoff_load.h" + +#include "arch/common/xcoff.h" + +#ifdef CONFIG_PPC +extern void flush_icache_range( char *start, char *stop ); +#endif + +//#define DEBUG_XCOFF + +#ifdef DEBUG_XCOFF +#define DPRINTF(fmt, args...) \ + do { printk("%s: " fmt, __func__ , ##args); } while (0) +#else +#define DPRINTF(fmt, args...) \ + do { } while (0) +#endif + +int +is_xcoff(COFF_filehdr_t *fhdr) +{ + return (fhdr->f_magic == U802WRMAGIC + || fhdr->f_magic == U802ROMAGIC + || fhdr->f_magic == U802TOCMAGIC + || fhdr->f_magic == U802TOMAGIC); +} + +int +xcoff_load(struct sys_info *info, const char *filename) +{ + // Currently not implemented + return LOADER_NOT_SUPPORT; +} + +void +xcoff_init_program(void) +{ + char *base; + COFF_filehdr_t *fhdr; + COFF_aouthdr_t *ahdr; + COFF_scnhdr_t *shdr; + uint32_t offset; + int i; + + feval("0 state-valid !"); + + feval("load-base"); + base = (char*)POP(); + + fhdr = (COFF_filehdr_t*)base; + + /* Is it an XCOFF file ? */ + if (!is_xcoff(fhdr)) { + DPRINTF("Not a XCOFF file %02x\n", fhdr->f_magic); + return; + } + + /* Is it executable ? */ + if (fhdr->f_magic != 0x01DF && + (fhdr->f_flags & COFF_F_EXEC) == 0) { + DPRINTF("Not an executable XCOFF file %02x\n", fhdr->f_flags); + return; + } + + /* Optional header is a.out ? */ + if (fhdr->f_opthdr != sizeof(COFF_aouthdr_t)) { + DPRINTF("AOUT optional error size mismatch in XCOFF file\n"); + return; + } + + ahdr = (COFF_aouthdr_t*)(base + sizeof(COFF_filehdr_t)); + + /* check a.out magic number */ + if (ahdr->magic != AOUT_MAGIC) { + DPRINTF("Invalid AOUT optional header\n"); + return; + } + + offset = sizeof(COFF_filehdr_t) + sizeof(COFF_aouthdr_t); + + DPRINTF("XCOFF file with %d sections\n", fhdr->f_nscns); + + for (i = 0; i < fhdr->f_nscns; i++) { + + DPRINTF("Read header at offset %0x\n", offset); + + shdr = (COFF_scnhdr_t*)(base + offset); + + DPRINTF("Initializing '%s' section from %0x %0x to %0x (%0x)\n", + shdr->s_name, offset, shdr->s_scnptr, + shdr->s_vaddr, shdr->s_size); + + if (strcmp(shdr->s_name, ".text") == 0) { + + memcpy((char*)shdr->s_vaddr, base + shdr->s_scnptr, + shdr->s_size); +#ifdef CONFIG_PPC + flush_icache_range((char*)shdr->s_vaddr, + (char*)(shdr->s_vaddr + shdr->s_size)); +#endif + } else if (strcmp(shdr->s_name, ".data") == 0) { + + memcpy((char*)shdr->s_vaddr, base + shdr->s_scnptr, + shdr->s_size); + + } else if (strcmp(shdr->s_name, ".bss") == 0) { + + memset((void *)shdr->s_vaddr, 0, shdr->s_size); + + } else { + DPRINTF(" Skip '%s' section\n", shdr->s_name); + } + offset += sizeof(COFF_scnhdr_t); + } + + /* FIXME: should initialize saved-program-state. */ + + DPRINTF("XCOFF entry point: %x\n", *(uint32_t*)ahdr->entry); + PUSH(*(uint32_t*)ahdr->entry); + feval("xcoff-entry !"); + + feval("-1 state-valid !"); +} Modified: trunk/openbios-devel/packages/elf-loader.c ============================================================================== --- trunk/openbios-devel/packages/elf-loader.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/packages/elf-loader.c Mon Mar 29 01:47:36 2010 (r720) @@ -16,81 +16,13 @@ #include "config.h" #include "libopenbios/bindings.h" +#include "libopenbios/elf_load.h" #include "packages.h" -#include "libopenbios/ofmem.h" - -#include "arch/common/elf.h" -#include "asm/elf.h" - -/* TODO: manage ELF notes section */ - -//#define DEBUG_ELF - -#ifdef DEBUG_ELF -#define DPRINTF(fmt, args...) \ - do { printk("%s: " fmt, __func__ , ##args); } while (0) -#else -#define DPRINTF(fmt, args...) \ - do { } while (0) -#endif DECLARE_NODE(elf_loader, INSTALL_OPEN, 0, "+/packages/elf-loader" ); -#ifdef CONFIG_PPC -extern void flush_icache_range( char *start, char *stop ); -#endif - -static void -elf_loader_init_program( void *dummy ) -{ - char *base; - int i; - Elf_ehdr *ehdr; - Elf_phdr *phdr; - size_t size; - char *addr; - cell tmp; - - feval("0 state-valid !"); - - feval("load-base"); - base = (char*)POP(); - - ehdr = (Elf_ehdr *)base; - phdr = (Elf_phdr *)(base + ehdr->e_phoff); - - for (i = 0; i < ehdr->e_phnum; i++) { - DPRINTF("filesz: %08lX memsz: %08lX p_offset: %08lX " - "p_vaddr %08lX\n", - (ulong)phdr[i].p_filesz, (ulong)phdr[i].p_memsz, - (ulong)phdr[i].p_offset, (ulong)phdr[i].p_vaddr ); - - size = MIN(phdr[i].p_filesz, phdr[i].p_memsz); - if (!size) - continue; -#if 0 - if( ofmem_claim( phdr[i].p_vaddr, phdr[i].p_memsz, 0 ) == -1 ) { - printk("Claim failed!\n"); - return; - } -#endif - /* Workaround for archs where sizeof(int) != pointer size */ - tmp = phdr[i].p_vaddr; - addr = (char *)tmp; - - memcpy(addr, base + phdr[i].p_offset, size); -#ifdef CONFIG_PPC - flush_icache_range( addr, addr + size ); -#endif - } - /* FIXME: should initialize saved-program-state. */ - PUSH(ehdr->e_entry); - feval("elf-entry !"); - feval("-1 state-valid !"); -} - NODE_METHODS( elf_loader ) = { - { "init-program", elf_loader_init_program }, + { "init-program", elf_init_program }, }; void elf_loader_init( void ) Modified: trunk/openbios-devel/packages/xcoff-loader.c ============================================================================== --- trunk/openbios-devel/packages/xcoff-loader.c Sun Mar 28 22:55:10 2010 (r719) +++ trunk/openbios-devel/packages/xcoff-loader.c Mon Mar 29 01:47:36 2010 (r720) @@ -16,126 +16,13 @@ #include "config.h" #include "libopenbios/bindings.h" +#include "libopenbios/xcoff_load.h" #include "packages.h" -#include "libopenbios/ofmem.h" - -#include "arch/common/xcoff.h" - -//#define DEBUG_XCOFF - -#ifdef DEBUG_XCOFF -#define DPRINTF(fmt, args...) \ - do { printk("%s: " fmt, __func__ , ##args); } while (0) -#else -#define DPRINTF(fmt, args...) \ - do { } while (0) -#endif DECLARE_NODE(xcoff_loader, INSTALL_OPEN, 0, "+/packages/xcoff-loader" ); -#ifdef CONFIG_PPC -extern void flush_icache_range( char *start, char *stop ); -#endif - -static void -xcoff_loader_init_program( void *dummy ) -{ - char *base; - COFF_filehdr_t *fhdr; - COFF_aouthdr_t *ahdr; - COFF_scnhdr_t *shdr; - uint32_t offset; - int i; - - feval("0 state-valid !"); - - feval("load-base"); - base = (char*)POP(); - - fhdr = (COFF_filehdr_t*)base; - - /* Is it an XCOFF file ? */ - - if (fhdr->f_magic != U802WRMAGIC && - fhdr->f_magic != U802ROMAGIC && - fhdr->f_magic != U802TOCMAGIC && - fhdr->f_magic != U802TOMAGIC) { - DPRINTF("Not a XCOFF file %02x\n", fhdr->f_magic); - return; - } - - /* Is it executable ? */ - - if (fhdr->f_magic != 0x01DF && - (fhdr->f_flags & COFF_F_EXEC) == 0) { - DPRINTF("Not an executable XCOFF file %02x\n", fhdr->f_flags); - return; - } - - /* Optional header is a.out ? */ - - if (fhdr->f_opthdr != sizeof(COFF_aouthdr_t)) { - DPRINTF("AOUT optional error size mismatch in XCOFF file\n"); - return; - } - - ahdr = (COFF_aouthdr_t*)(base + sizeof(COFF_filehdr_t)); - - /* check a.out magic number */ - - if (ahdr->magic != AOUT_MAGIC) { - DPRINTF("Invalid AOUT optional header\n"); - return; - } - - offset = sizeof(COFF_filehdr_t) + sizeof(COFF_aouthdr_t); - - DPRINTF("XCOFF file with %d sections\n", fhdr->f_nscns); - - for (i = 0; i < fhdr->f_nscns; i++) { - - DPRINTF("Read header at offset %0x\n", offset); - - shdr = (COFF_scnhdr_t*)(base + offset); - - DPRINTF("Initializing '%s' section from %0x %0x to %0x (%0x)\n", - shdr->s_name, offset, shdr->s_scnptr, - shdr->s_vaddr, shdr->s_size); - - if (strcmp(shdr->s_name, ".text") == 0) { - - memcpy((char*)shdr->s_vaddr, base + shdr->s_scnptr, - shdr->s_size); -#ifdef CONFIG_PPC - flush_icache_range((char*)shdr->s_vaddr, - (char*)(shdr->s_vaddr + shdr->s_size)); -#endif - } else if (strcmp(shdr->s_name, ".data") == 0) { - - memcpy((char*)shdr->s_vaddr, base + shdr->s_scnptr, - shdr->s_size); - - } else if (strcmp(shdr->s_name, ".bss") == 0) { - - memset((void *)shdr->s_vaddr, 0, shdr->s_size); - - } else { - DPRINTF(" Skip '%s' section\n", shdr->s_name); - } - offset += sizeof(COFF_scnhdr_t); - } - - /* FIXME: should initialize saved-program-state. */ - - DPRINTF("XCOFF entry point: %x\n", *(uint32_t*)ahdr->entry); - PUSH(*(uint32_t*)ahdr->entry); - feval("xcoff-entry !"); - - feval("-1 state-valid !"); -} - NODE_METHODS( xcoff_loader ) = { - { "init-program", xcoff_loader_init_program }, + { "init-program", xcoff_init_program }, }; void xcoff_loader_init( void )

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[commit] r719 - in trunk/openbios-devel: include/libopenbios libopenbios
by repository service 28 Mar '10

28 Mar '10

Author: mcayland Date: Sun Mar 28 22:55:10 2010 New Revision: 719 URL: http://tracker.coreboot.org/trac/openbios/changeset/719 Log: Add is_fcode(), is_forth() and is_aout() functions which take a pointer to an area of memory which may contain a valid loader image. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)siriusit.co.uk> Modified: trunk/openbios-devel/include/libopenbios/aout_load.h trunk/openbios-devel/include/libopenbios/fcode_load.h trunk/openbios-devel/include/libopenbios/forth_load.h trunk/openbios-devel/libopenbios/aout_load.c trunk/openbios-devel/libopenbios/fcode_load.c trunk/openbios-devel/libopenbios/forth_load.c Modified: trunk/openbios-devel/include/libopenbios/aout_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/aout_load.h Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/include/libopenbios/aout_load.h Sun Mar 28 22:55:10 2010 (r719) @@ -17,8 +17,10 @@ #ifndef _H_AOUTLOAD #define _H_AOUTLOAD +#include "arch/common/a.out.h" #include "libopenbios/sys_info.h" +extern int is_aout(struct exec *ehdr); extern int aout_load(struct sys_info *info, const char *filename); #endif /* _H_AOUTLOAD */ Modified: trunk/openbios-devel/include/libopenbios/fcode_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/fcode_load.h Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/include/libopenbios/fcode_load.h Sun Mar 28 22:55:10 2010 (r719) @@ -17,6 +17,7 @@ #ifndef _H_FCODELOAD #define _H_FCODELOAD +extern int is_fcode(unsigned char *fcode); extern int fcode_load(const char *filename); #endif /* _H_FCODELOAD */ Modified: trunk/openbios-devel/include/libopenbios/forth_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/forth_load.h Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/include/libopenbios/forth_load.h Sun Mar 28 22:55:10 2010 (r719) @@ -17,6 +17,7 @@ #ifndef _H_FORTHLOAD #define _H_FORTHLOAD +extern int is_forth(char *forth); extern int forth_load(const char *filename); #endif /* _H_FORTHLOAD */ Modified: trunk/openbios-devel/libopenbios/aout_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/aout_load.c Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/libopenbios/aout_load.c Sun Mar 28 22:55:10 2010 (r719) @@ -58,6 +58,15 @@ return 0; } +int is_aout(struct exec *ehdr) +{ + return ((ehdr->a_info & 0xffff) == OMAGIC + || (ehdr->a_info & 0xffff) == NMAGIC + || (ehdr->a_info & 0xffff) == ZMAGIC + || (ehdr->a_info & 0xffff) == QMAGIC); + +} + int aout_load(struct sys_info *info, const char *filename) { int retval = -1; @@ -81,11 +90,11 @@ retval = LOADER_NOT_SUPPORT; goto out; } - if (!N_BADMAG(ehdr)) + if (is_aout(&ehdr)) break; } - if (N_BADMAG(ehdr)) { + if (!is_aout(&ehdr)) { debug("Not a bootable a.out image\n"); retval = LOADER_NOT_SUPPORT; goto out; Modified: trunk/openbios-devel/libopenbios/fcode_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/fcode_load.c Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/libopenbios/fcode_load.c Sun Mar 28 22:55:10 2010 (r719) @@ -13,6 +13,15 @@ static int fd; +int is_fcode(unsigned char *fcode) +{ + return (fcode[0] == 0xf0 // start0 + || fcode[0] == 0xf1 // start1 + || fcode[0] == 0xf2 // start2 + || fcode[0] == 0xf3 // start4 + || fcode[0] == 0xfd); // version1 +} + int fcode_load(const char *filename) { int retval = -1; @@ -35,14 +44,9 @@ retval = LOADER_NOT_SUPPORT; goto out; } - switch (fcode_header[0]) { - case 0xf0: // start0 - case 0xf1: // start1 - case 0xf2: // start2 - case 0xf3: // start4 - case 0xfd: // version1 + + if (is_fcode(fcode_header)) goto found; - } } debug("Not a bootable FCode image\n"); Modified: trunk/openbios-devel/libopenbios/forth_load.c ============================================================================== --- trunk/openbios-devel/libopenbios/forth_load.c Sun Mar 28 22:48:53 2010 (r718) +++ trunk/openbios-devel/libopenbios/forth_load.c Sun Mar 28 22:55:10 2010 (r719) @@ -16,8 +16,13 @@ #define debug printk static int fd; - static char *forthtext=NULL; + +int is_forth(char *forth) +{ + return (forth[0] == '\\' && forth[1] == ' '); +} + int forth_load(const char *filename) { char magic[2]; @@ -37,7 +42,7 @@ goto out; } - if (magic[0] != '\\' || magic[1] != ' ') { + if (!is_forth(magic)) { debug("No forth source image\n"); retval = LOADER_NOT_SUPPORT; goto out;

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[commit] r718 - trunk/openbios-devel/include/libopenbios
by repository service 28 Mar '10

28 Mar '10

Author: blueswirl Date: Sun Mar 28 22:48:53 2010 New Revision: 718 URL: http://tracker.coreboot.org/trac/openbios/changeset/718 Log: Add missing newline Fixes build: CC target/arch/sparc64/boot.o In file included from ../arch/sparc64/boot.c:14: ../include/libopenbios/forth_load.h:22:28: error: no newline at end of file Signed-off-by: Blue Swirl <blauwirbel(a)gmail.com> Modified: trunk/openbios-devel/include/libopenbios/forth_load.h Modified: trunk/openbios-devel/include/libopenbios/forth_load.h ============================================================================== --- trunk/openbios-devel/include/libopenbios/forth_load.h Sun Mar 28 22:18:30 2010 (r717) +++ trunk/openbios-devel/include/libopenbios/forth_load.h Sun Mar 28 22:48:53 2010 (r718) @@ -19,4 +19,4 @@ extern int forth_load(const char *filename); -#endif /* _H_FORTHLOAD */ \ No newline at end of file +#endif /* _H_FORTHLOAD */

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