17c79a9e23
Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
/*
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* \brief L4Re functions needed by L4Linux.
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* \author Stefan Kalkowski
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* \date 2011-04-17
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*/
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/*
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* Copyright (C) 2011-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/log.h>
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#include <base/capability.h>
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#include <rm_session/connection.h>
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/* L4lx includes */
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#include <dataspace.h>
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#include <env.h>
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namespace Fiasco {
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#include <l4/re/c/mem_alloc.h>
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}
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using namespace Fiasco;
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extern "C" {
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long l4re_ma_alloc(unsigned long size, l4re_ds_t const mem,
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unsigned long flags)
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{
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using namespace L4lx;
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Dataspace *ds;
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if (Genode::log2(size) >= Chunked_dataspace::CHUNK_SIZE_LOG2) {
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ds = new (Genode::env()->heap())
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Chunked_dataspace("lx_memory", size, mem);
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} else {
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Genode::Dataspace_capability cap =
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Genode::env()->ram_session()->alloc(size);
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ds = new (Genode::env()->heap())
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Single_dataspace("lx_memory", size, cap, mem);
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}
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Env::env()->dataspaces()->insert(ds);
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return 0;
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}
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long l4re_ma_alloc_align(unsigned long size, l4re_ds_t const mem,
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unsigned long flags, unsigned long align) {
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return l4re_ma_alloc(size, mem, flags); }
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long l4re_ma_free(l4re_ds_t const mem)
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{
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Genode::warning(__func__, " not implemented");
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return 0;
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}
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}
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