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, 114 deletions

diff --git a/gpxe/src/arch/i386/image/bootsector.c b/gpxe/src/arch/i386/image/bootsector.c
deleted file mode 100644
index f96cf201..00000000
--- a/gpxe/src/arch/i386/image/bootsector.c
+++ /dev/null
@@ -1,114 +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
- *
- * x86 bootsector image format
- *
- */
-
-#include <errno.h>
-#include <realmode.h>
-#include <biosint.h>
-#include <bootsector.h>
-
-/** Vector for storing original INT 18 handler
- *
- * We do not chain to this vector, so there is no need to place it in
- * .text16.
- */
-static struct segoff int18_vector;
-
-/** Vector for storing original INT 19 handler
- *
- * We do not chain to this vector, so there is no need to place it in
- * .text16.
- */
-static struct segoff int19_vector;
-
-/** Restart point for INT 18 or 19 */
-extern void bootsector_exec_fail ( void );
-
-/**
- * Jump to preloaded bootsector
- *
- * @v segment		Real-mode segment
- * @v offset		Real-mode offset
- * @v drive		Drive number to pass to boot sector
- * @ret rc		Return status code
- */
-int call_bootsector ( unsigned int segment, unsigned int offset,
-		      unsigned int drive ) {
-	int discard_b, discard_D, discard_d;
-
-	DBG ( "Booting from boot sector at %04x:%04x\n", segment, offset );
-
-	/* Hook INTs 18 and 19 to capture failure paths */
-	hook_bios_interrupt ( 0x18, ( unsigned int ) bootsector_exec_fail,
-			      &int18_vector );
-	hook_bios_interrupt ( 0x19, ( unsigned int ) bootsector_exec_fail,
-			      &int19_vector );
-
-	/* Boot the loaded sector
-	 *
-	 * We assume that the boot sector may completely destroy our
-	 * real-mode stack, so we preserve everything we need in
-	 * static storage.
-	 */
-	__asm__ __volatile__ ( REAL_CODE ( /* Save return address off-stack */
-					   "popw %%cs:saved_retaddr\n\t"
-					   /* Save stack pointer */
-					   "movw %%ss, %%ax\n\t"
-					   "movw %%ax, %%cs:saved_ss\n\t"
-					   "movw %%sp, %%cs:saved_sp\n\t"
-					   /* Jump to boot sector */
-					   "pushw %%bx\n\t"
-					   "pushw %%di\n\t"
-					   "sti\n\t"
-					   "lret\n\t"
-					   /* Preserved variables */
-					   "\nsaved_ss: .word 0\n\t"
-					   "\nsaved_sp: .word 0\n\t"
-					   "\nsaved_retaddr: .word 0\n\t"
-					   /* Boot failure return point */
-					   "\nbootsector_exec_fail:\n\t"
-					   /* Restore stack pointer */
-					   "movw %%cs:saved_ss, %%ax\n\t"
-					   "movw %%ax, %%ss\n\t"
-					   "movw %%cs:saved_sp, %%sp\n\t"
-					   /* Return via saved address */
-					   "jmp *%%cs:saved_retaddr\n\t" )
-			       : "=b" ( discard_b ), "=D" ( discard_D ),
-			         "=d" ( discard_d )
-			       : "b" ( segment ), "D" ( offset ),
-			         "d" ( drive )
-			       : "eax", "ecx", "esi", "ebp" );
-
-	DBG ( "Booted disk returned via INT 18 or 19\n" );
-
-	/* Unhook INTs 18 and 19 */
-	unhook_bios_interrupt ( 0x18, ( unsigned int ) bootsector_exec_fail,
-				&int18_vector );
-	unhook_bios_interrupt ( 0x19, ( unsigned int ) bootsector_exec_fail,
-				&int19_vector );
-	
-	return -ECANCELED;
-}