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[x86_64] Add support for compilation as an x86_64 binary

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Currently the only supported platform for x86_64 is EFI.

Building an EFI64 gPXE requires a version of gcc that supports
__attribute__((ms_abi)).  This currently means a development build of
gcc; the feature should be present when gcc 4.4 is released.

In the meantime; you can grab a suitable gcc tree from

  git://git.etherboot.org/scm/people/mcb30/gcc/.git
This commit is contained in:
Michael Brown
2008-11-18 14:30:37 -08:00
parent b0d2c9a4d5
commit ce0a0ccf5c
34 changed files with 997 additions and 51 deletions
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63
src/arch/i386/core/i386_string.c
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@@ -1,63 +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
*
* Optimised string operations
*
*/
#include <string.h>
/**
* Copy memory area
*
* @v dest Destination address
* @v src Source address
* @v len Length
* @ret dest Destination address
*/
__attribute__ (( regparm ( 3 ) )) void * __memcpy ( void *dest,
const void *src,
size_t len ) {
void *edi = dest;
const void *esi = src;
int discard_ecx;
/* We often do large dword-aligned and dword-length block
* moves. Using movsl rather than movsb speeds these up by
* around 32%.
*/
if ( len >> 2 ) {
__asm__ __volatile__ ( "rep movsl"
: "=&D" ( edi ), "=&S" ( esi ),
"=&c" ( discard_ecx )
: "0" ( edi ), "1" ( esi ),
"2" ( len >> 2 )
: "memory" );
}
if ( len & 0x02 ) {
__asm__ __volatile__ ( "movsw" : "=&D" ( edi ), "=&S" ( esi )
: "0" ( edi ), "1" ( esi ) : "memory" );
}
if ( len & 0x01 ) {
__asm__ __volatile__ ( "movsb" : "=&D" ( edi ), "=&S" ( esi )
: "0" ( edi ), "1" ( esi ) : "memory" );
}
return dest;
}

44
src/arch/i386/core/pcidirect.c
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@@ -1,44 +0,0 @@
/*
* Copyright (C) 2006 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.
*/
#include <gpxe/pci.h>
/** @file
*
* PCI configuration space access via Type 1 accesses
*
*/
/**
* Prepare for Type 1 PCI configuration space access
*
* @v pci PCI device
* @v where Location within PCI configuration space
*/
void pcidirect_prepare ( struct pci_device *pci, int where ) {
outl ( ( 0x80000000 | ( pci->bus << 16 ) | ( pci->devfn << 8 ) |
( where & ~3 ) ), PCIDIRECT_CONFIG_ADDRESS );
}
PROVIDE_PCIAPI_INLINE ( direct, pci_max_bus );
PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_byte );
PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_word );
PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_dword );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_byte );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_word );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_dword );