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dde_ipxe: Properly wrap iPXE interfaces to C++

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As iPXE header files are not C++ compatible, the implementation missed
proper include directives. For example, alloc_memblock() had a wrong
signature, which was not detected. Now, C wrapper functions are
implemented using a local API to the C++ backend.

Related to #593.
This commit is contained in:
Christian Helmuth 2013-01-07 18:00:35 +01:00
parent d90b0464b8
commit f9cb8a9ac3
3 changed files with 42 additions and 4 deletions
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12
dde_ipxe/src/lib/dde_ipxe/dde.c
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@ -27,9 +27,21 @@
#include <ipxe/pci.h>
#include <ipxe/settings.h>
#include <ipxe/netdevice.h>
#include <ipxe/timer2.h>
#include "local.h"
/***********************************
** Wrapper to DDE support in C++ **
***********************************/
#include "dde_support.h"
void *alloc_memblock(size_t size, size_t align, size_t offset) { return dde_alloc_memblock(size, align, offset); }
void free_memblock(void *p, size_t size) { dde_free_memblock(p, size); }
void timer2_udelay(unsigned long usecs) { dde_timer2_udelay(usecs); }
/**********************************
** Memory pool in DDE kit slabs **
**********************************/

10
dde_ipxe/src/lib/dde_ipxe/dde_support.cc
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@ -20,6 +20,7 @@
extern "C" {
#include <dde_kit/pgtab.h>
#include "dde_support.h"
}
using namespace Genode;
@ -56,18 +57,19 @@ void __attribute__((constructor)) init()
}
extern "C" void *alloc_memblock(size_t size, size_t align)
extern "C" void *dde_alloc_memblock(dde_kit_size_t size, dde_kit_size_t align, dde_kit_size_t offset)
{
void *ptr;
if (allocator()->alloc_aligned(size, &ptr, log2(align)).is_error()) {
PERR("memory allocation failed in alloc_memblock");
PERR("memory allocation failed in alloc_memblock (size=%zd, align=%zx, offset=%zx)",
size, align, offset);
return 0;
};
return ptr;
}
extern "C" void free_memblock(void *p, size_t size)
extern "C" void dde_free_memblock(void *p, dde_kit_size_t size)
{
allocator()->free(p, size);
}
@ -77,7 +79,7 @@ extern "C" void free_memblock(void *p, size_t size)
** Timer **
***********/
extern "C" void timer2_udelay(unsigned long usecs)
extern "C" void dde_timer2_udelay(unsigned long usecs)
{
/*
* This function is called only once during rdtsc calibration (usecs will be

24
dde_ipxe/src/lib/dde_ipxe/dde_support.h Normal file
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@ -0,0 +1,24 @@
/*
* \brief DDE iPXE wrappers to C++ backend
* \author Christian Helmuth
* \date 2013-01-07
*/
/*
* Copyright (C) 2010-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _DDE_SUPPORT_H_
#define _DDE_SUPPORT_H_
#include <dde_kit/types.h>
void *dde_alloc_memblock(dde_kit_size_t size, dde_kit_size_t align, dde_kit_size_t offset);
void dde_free_memblock(void *p, dde_kit_size_t size);
void dde_timer2_udelay(unsigned long usecs);
#endif /* _DDE_SUPPORT_H_ */