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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 of the License, or
* (at your option) 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, see <http://www.gnu.org/licenses/>.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "common/scummsys.h"
#if defined(DYNAMIC_MODULES) && defined(__3DS__)
#include "backends/plugins/3ds/3ds-provider.h"
#include "backends/plugins/elf/arm-loader.h"
#include "common/debug.h"
#include <3ds.h>
extern uint32 __end__; // End of the main program in memory. Set by the linker.
static uint32 alignUp(uint32 ptr, uint32 align) {
return (ptr + align - 1) & ~(align - 1);
}
class CTRDLObject : public ARMDLObject {
protected:
static const uint32 kPageSize = 0x1000;
uint32 _segmentHeapAddress;
void flushDataCache(void *ptr, uint32 len) const override {
svcFlushProcessDataCache(CUR_PROCESS_HANDLE, (uint32)ptr, len);
}
void protectMemory(void *ptr, uint32 len, int prot) const override {
debug(2, "elfloader: Protecting memory at %p, len %d with %d", ptr, len, prot);
uint32 ctrFlags = 0;
if (prot & PF_R) ctrFlags |= MEMPERM_READ;
if (prot & PF_W) ctrFlags |= MEMPERM_WRITE;
if (prot & PF_X) ctrFlags |= MEMPERM_EXECUTE;
// The kernel expects the range to be aligned to page boundaries
len = alignUp(len, kPageSize);
Handle currentHandle;
svcDuplicateHandle(¤tHandle, CUR_PROCESS_HANDLE);
svcControlProcessMemory(currentHandle, (uint32)ptr, 0, len, MEMOP_PROT, ctrFlags);
svcCloseHandle(currentHandle);
}
};
Plugin *CTRPluginProvider::createPlugin(const Common::FSNode &node) const {
return new TemplatedELFPlugin<CTRDLObject>(node.getPath());
}
#endif // defined(DYNAMIC_MODULES) && defined(__3DS__)
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