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Diffstat (limited to 'gpxe/src/image/segment.c')
| -rw-r--r-- | gpxe/src/image/segment.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/gpxe/src/image/segment.c b/gpxe/src/image/segment.c deleted file mode 100644 index e2474536..00000000 --- a/gpxe/src/image/segment.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.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; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -/** - * @file - * - * Executable image segments - * - */ - -#include <errno.h> -#include <gpxe/uaccess.h> -#include <gpxe/memmap.h> -#include <gpxe/errortab.h> -#include <gpxe/segment.h> - -/** - * Prepare segment for loading - * - * @v segment Segment start - * @v filesz Size of the "allocated bytes" portion of the segment - * @v memsz Size of the segment - * @ret rc Return status code - */ -int prep_segment ( userptr_t segment, size_t filesz, size_t memsz ) { - struct memory_map memmap; - physaddr_t start = user_to_phys ( segment, 0 ); - physaddr_t mid = user_to_phys ( segment, filesz ); - physaddr_t end = user_to_phys ( segment, memsz ); - unsigned int i; - - DBG ( "Preparing segment [%lx,%lx,%lx)\n", start, mid, end ); - - /* Sanity check */ - if ( filesz > memsz ) { - DBG ( "Insane segment [%lx,%lx,%lx)\n", start, mid, end ); - return -EINVAL; - } - - /* Get a fresh memory map. This allows us to automatically - * avoid treading on any regions that Etherboot is currently - * editing out of the memory map. - */ - get_memmap ( &memmap ); - - /* Look for a suitable memory region */ - for ( i = 0 ; i < memmap.count ; i++ ) { - if ( ( start >= memmap.regions[i].start ) && - ( end <= memmap.regions[i].end ) ) { - /* Found valid region: zero bss and return */ - memset_user ( segment, filesz, 0, ( memsz - filesz ) ); - return 0; - } - } - - /* No suitable memory region found */ - DBG ( "Segment [%lx,%lx,%lx) does not fit into available memory\n", - start, mid, end ); - return -ERANGE; -} - -/** - * Segment-specific error messages - * - * This error happens sufficiently often to merit a user-friendly - * description. - */ -struct errortab segment_errors[] __errortab = { - { ERANGE, "Requested memory not available" }, -}; |