gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 162 deletions

diff --git a/gpxe/src/image/elf.c b/gpxe/src/image/elf.c
deleted file mode 100644
index a0ec065e..00000000
--- a/gpxe/src/image/elf.c
+++ /dev/null
@@ -1,162 +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
- *
- * ELF image format
- *
- * A "pure" ELF image is not a bootable image.  There are various
- * bootable formats based upon ELF (e.g. Multiboot), which share
- * common ELF-related functionality.
- */
-
-#include <errno.h>
-#include <elf.h>
-#include <gpxe/uaccess.h>
-#include <gpxe/segment.h>
-#include <gpxe/image.h>
-#include <gpxe/elf.h>
-
-typedef Elf32_Ehdr	Elf_Ehdr;
-typedef Elf32_Phdr	Elf_Phdr;
-typedef Elf32_Off	Elf_Off;
-
-/**
- * Load ELF segment into memory
- *
- * @v image		ELF file
- * @v phdr		ELF program header
- * @v ehdr		ELF executable header
- * @ret rc		Return status code
- */
-static int elf_load_segment ( struct image *image, Elf_Phdr *phdr,
-			      Elf_Ehdr *ehdr ) {
-	physaddr_t dest;
-	userptr_t buffer;
-	unsigned long e_offset;
-	int rc;
-
-	/* Do nothing for non-PT_LOAD segments */
-	if ( phdr->p_type != PT_LOAD )
-		return 0;
-
-	/* Check segment lies within image */
-	if ( ( phdr->p_offset + phdr->p_filesz ) > image->len ) {
-		DBGC ( image, "ELF %p segment outside image\n", image );
-		return -ENOEXEC;
-	}
-
-	/* Find start address: use physical address for preference,
-	 * fall back to virtual address if no physical address
-	 * supplied.
-	 */
-	dest = phdr->p_paddr;
-	if ( ! dest )
-		dest = phdr->p_vaddr;
-	if ( ! dest ) {
-		DBGC ( image, "ELF %p segment loads to physical address 0\n",
-		       image );
-		return -ENOEXEC;
-	}
-	buffer = phys_to_user ( dest );
-
-	DBGC ( image, "ELF %p loading segment [%x,%x) to [%x,%x,%x)\n", image,
-	       phdr->p_offset, ( phdr->p_offset + phdr->p_filesz ),
-	       phdr->p_paddr, ( phdr->p_paddr + phdr->p_filesz ),
-	       ( phdr->p_paddr + phdr->p_memsz ) );
-
-	/* Verify and prepare segment */
-	if ( ( rc = prep_segment ( buffer, phdr->p_filesz,
-				   phdr->p_memsz ) ) != 0 ) {
-		DBGC ( image, "ELF %p could not prepare segment: %s\n",
-		       image, strerror ( rc ) );
-		return rc;
-	}
-
-	/* Copy image to segment */
-	memcpy_user ( buffer, 0, image->data, phdr->p_offset, phdr->p_filesz );
-
-	/* Set execution address, if it lies within this segment */
-	if ( ( e_offset = ( ehdr->e_entry - dest ) ) < phdr->p_filesz ) {
-		image->priv.phys = ehdr->e_entry;
-		DBGC ( image, "ELF %p found physical entry point at %lx\n",
-		       image, image->priv.phys );
-	} else if ( ( e_offset = ( ehdr->e_entry - phdr->p_vaddr ) )
-		    < phdr->p_filesz ) {
-		if ( ! image->priv.phys ) {
-			image->priv.phys = ( dest + e_offset );
-			DBGC ( image, "ELF %p found virtual entry point at %lx"
-			       " (virt %lx)\n", image, image->priv.phys,
-			       ( ( unsigned long ) ehdr->e_entry ) );
-		}
-	}
-
-	return 0;
-}
-
-/**
- * Load ELF image into memory
- *
- * @v image		ELF file
- * @ret rc		Return status code
- */
-int elf_load ( struct image *image ) {
-	Elf_Ehdr ehdr;
-	Elf_Phdr phdr;
-	Elf_Off phoff;
-	unsigned int phnum;
-	int rc;
-
-	/* Image type must already have been set by caller */
-	assert ( image->type != NULL );
-
-	/* Read ELF header */
-	copy_from_user ( &ehdr, image->data, 0, sizeof ( ehdr ) );
-	if ( memcmp ( &ehdr.e_ident[EI_MAG0], ELFMAG, SELFMAG ) != 0 ) {
-		DBGC ( image, "ELF %p has invalid signature\n", image );
-		return -ENOEXEC;
-	}
-
-	/* Invalidate execution address */
-	image->priv.phys = 0;
-
-	/* Read ELF program headers */
-	for ( phoff = ehdr.e_phoff , phnum = ehdr.e_phnum ; phnum ;
-	      phoff += ehdr.e_phentsize, phnum-- ) {
-		if ( phoff > image->len ) {
-			DBGC ( image, "ELF %p program header %d outside "
-			       "image\n", image, phnum );
-			return -ENOEXEC;
-		}
-		copy_from_user ( &phdr, image->data, phoff, sizeof ( phdr ) );
-		if ( ( rc = elf_load_segment ( image, &phdr, &ehdr ) ) != 0 )
-			return rc;
-	}
-
-	/* Check for a valid execution address */
-	if ( ! image->priv.phys ) {
-		DBGC ( image, "ELF %p entry point %lx outside image\n",
-		       image, ( ( unsigned long ) ehdr.e_entry ) );
-		return -ENOEXEC;
-	}
-
-	return 0;
-}