Initial revision
This commit is contained in:
wdenk
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38a24a612e
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/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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OUTPUT_ARCH(powerpc)
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SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
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/* Do we need any of these for elf?
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__DYNAMIC = 0; */
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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. = + SIZEOF_HEADERS;
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.interp : { *(.interp) }
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.hash : { *(.hash) }
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.rel.text : { *(.rel.text) }
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.rela.text : { *(.rela.text) }
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.rel.data : { *(.rel.data) }
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.rela.data : { *(.rela.data) }
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.rel.rodata : { *(.rel.rodata) }
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.rela.rodata : { *(.rela.rodata) }
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.rel.got : { *(.rel.got) }
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.rela.got : { *(.rela.got) }
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.rel.ctors : { *(.rel.ctors) }
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.rela.ctors : { *(.rela.ctors) }
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.rel.dtors : { *(.rel.dtors) }
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.rela.dtors : { *(.rela.dtors) }
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.rel.bss : { *(.rel.bss) }
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.rela.bss : { *(.rela.bss) }
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.rel.plt : { *(.rel.plt) }
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.rela.plt : { *(.rela.plt) }
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.init : { *(.init) }
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.plt : { *(.plt) }
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.text :
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{
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/* WARNING - the following is hand-optimized to fit within */
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/* the sector layout of our flash chips! XXX FIXME XXX */
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cpu/mpc8xx/start.o (.text)
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cpu/mpc8xx/traps.o (.text)
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common/dlmalloc.o (.text)
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lib_ppc/ppcstring.o (.text)
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lib_generic/vsprintf.o (.text)
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lib_generic/crc32.o (.text)
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lib_generic/zlib.o (.text)
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lib_ppc/cache.o (.text)
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lib_ppc/time.o (.text)
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. = env_offset;
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common/environment.o (.ppcenv)
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*(.text)
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*(.fixup)
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*(.got1)
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}
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_etext = .;
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PROVIDE (etext = .);
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.rodata :
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{
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*(.rodata)
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*(.rodata1)
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}
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.fini : { *(.fini) } =0
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.ctors : { *(.ctors) }
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.dtors : { *(.dtors) }
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/* Read-write section, merged into data segment: */
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. = (. + 0x00FF) & 0xFFFFFF00;
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_erotext = .;
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PROVIDE (erotext = .);
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.reloc :
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{
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*(.got)
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_GOT2_TABLE_ = .;
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*(.got2)
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_FIXUP_TABLE_ = .;
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*(.fixup)
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}
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__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
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__fixup_entries = (. - _FIXUP_TABLE_)>>2;
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.data :
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{
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*(.data)
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*(.data1)
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*(.sdata)
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*(.sdata2)
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*(.dynamic)
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CONSTRUCTORS
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}
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_edata = .;
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PROVIDE (edata = .);
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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. = ALIGN(256);
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__init_begin = .;
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.text.init : { *(.text.init) }
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.data.init : { *(.data.init) }
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. = ALIGN(256);
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__init_end = .;
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__bss_start = .;
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.bss :
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{
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*(.sbss) *(.scommon)
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*(.dynbss)
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*(.bss)
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*(COMMON)
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}
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_end = . ;
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PROVIDE (end = .);
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}
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@ -0,0 +1,80 @@
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/*
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* (C) Copyright 2001
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* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define __ASSEMBLY__ /* Dirty trick to get only #defines */
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#include <config.h>
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#undef __ASSEMBLY__
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#if defined(CFG_ENV_IS_IN_FLASH)
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# ifndef CFG_ENV_ADDR
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# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
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# endif
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# ifndef CFG_ENV_OFFSET
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# define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
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# endif
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# ifndef CFG_ENV_SIZE
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# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
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# endif
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# if ((CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
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((CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)))
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# define ENV_IS_EMBEDDED
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# endif
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#endif /* CFG_ENV_IS_IN_FLASH */
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extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
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#ifdef ENV_IS_EMBEDDED
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extern unsigned int env_size;
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extern unsigned char environment;
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#endif /* ENV_IS_EMBEDDED */
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int main (int argc, char **argv)
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{
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#ifdef ENV_IS_EMBEDDED
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int crc ;
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unsigned char *envptr = &environment,
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*dataptr = envptr + sizeof(unsigned int) + 1;
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unsigned int datasize = env_size - (dataptr - envptr) ;
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crc = crc32(0, dataptr, datasize) ;
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/* Check if verbose mode is activated passing a parameter to the program */
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if (argc > 1) {
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printf("CRC32 from offset %08X to %08X of environment = %08X\n",
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(unsigned int)(dataptr - envptr),
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(unsigned int)(dataptr - envptr) + datasize,
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crc);
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} else {
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printf("0x%08X\n", crc);
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}
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#else
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printf("0\n");
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#endif
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return EXIT_SUCCESS;
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}
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