1*781c2fb3Skiyohara /* $NetBSD: netbsd.cpp,v 1.2 2013/06/20 13:36:48 kiyohara Exp $ */ 268122621Skiyohara /* 368122621Skiyohara * Copyright (c) 2012 KIYOHARA Takashi 468122621Skiyohara * All rights reserved. 568122621Skiyohara * 668122621Skiyohara * Redistribution and use in source and binary forms, with or without 768122621Skiyohara * modification, are permitted provided that the following conditions 868122621Skiyohara * are met: 968122621Skiyohara * 1. Redistributions of source code must retain the above copyright 1068122621Skiyohara * notice, this list of conditions and the following disclaimer. 1168122621Skiyohara * 2. Redistributions in binary form must reproduce the above copyright 1268122621Skiyohara * notice, this list of conditions and the following disclaimer in the 1368122621Skiyohara * documentation and/or other materials provided with the distribution. 1468122621Skiyohara * 1568122621Skiyohara * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1668122621Skiyohara * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1768122621Skiyohara * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1868122621Skiyohara * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 1968122621Skiyohara * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2068122621Skiyohara * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2168122621Skiyohara * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2268122621Skiyohara * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2368122621Skiyohara * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 2468122621Skiyohara * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2568122621Skiyohara * POSSIBILITY OF SUCH DAMAGE. 2668122621Skiyohara */ 2768122621Skiyohara #include <e32cons.h> 2868122621Skiyohara #include <e32std.h> 2968122621Skiyohara #include <f32file.h> 3068122621Skiyohara 3168122621Skiyohara #include "e32boot.h" 3268122621Skiyohara #include "elf.h" 3368122621Skiyohara #include "netbsd.h" 3468122621Skiyohara 3568122621Skiyohara 3668122621Skiyohara NetBSD * 3768122621Skiyohara NetBSD::New(const TDesC &aFilename) 3868122621Skiyohara { 3968122621Skiyohara NetBSD *netbsd = NULL; 4068122621Skiyohara RFs fsSession; 4168122621Skiyohara RFile file; 4268122621Skiyohara TInt size; 4368122621Skiyohara union { 4468122621Skiyohara Elf32_Ehdr elf; 4568122621Skiyohara } hdr; 4668122621Skiyohara 4768122621Skiyohara /* Connect to FileServer Session */ 4868122621Skiyohara User::LeaveIfError(fsSession.Connect()); 4968122621Skiyohara 5068122621Skiyohara User::LeaveIfError(file.Open(fsSession, aFilename, EFileRead)); 5168122621Skiyohara User::LeaveIfError(file.Size(size)); 5268122621Skiyohara 5368122621Skiyohara TPtr hdrBuf((TUint8 *)&hdr, sizeof(hdr)); 5468122621Skiyohara User::LeaveIfError(file.Read(hdrBuf)); 5568122621Skiyohara /* Currently support is ELF only. */ 5668122621Skiyohara if (Mem::Compare((TUint8 *)hdr.elf.e_ident, SELFMAG, 5768122621Skiyohara (TUint8 *)ELFMAG, SELFMAG) == 0) { 5868122621Skiyohara netbsd = new (ELeave) ELF(size); 5968122621Skiyohara } else 6068122621Skiyohara User::Leave(KErrNotSupported); 6168122621Skiyohara TInt pos = 0; 6268122621Skiyohara User::LeaveIfError(file.Seek(ESeekStart, pos)); 6368122621Skiyohara 6468122621Skiyohara TPtr fileBuf(netbsd->Buffer, size); 6568122621Skiyohara User::LeaveIfError(file.Read(fileBuf)); 6668122621Skiyohara if (fileBuf.Length() != size) 6768122621Skiyohara User::Leave(KErrNotFound); 6868122621Skiyohara file.Close(); 6968122621Skiyohara 7068122621Skiyohara /* Close FileServer Session */ 7168122621Skiyohara fsSession.Close(); 7268122621Skiyohara 7368122621Skiyohara netbsd->LoadDescriptor = 7468122621Skiyohara (struct loaddesc *)PAGE_ALIGN(User::AllocL(ALIGN_SAFE_PAGE_SIZE)); 7568122621Skiyohara 7668122621Skiyohara return netbsd; 7768122621Skiyohara } 7868122621Skiyohara 79*781c2fb3Skiyohara NetBSD * 80*781c2fb3Skiyohara NetBSD::New(const TDesC &aFilename, const TDesC &aArgs) 81*781c2fb3Skiyohara { 82*781c2fb3Skiyohara NetBSD *netbsd = New(aFilename); 83*781c2fb3Skiyohara 84*781c2fb3Skiyohara netbsd->Args = &aArgs; 85*781c2fb3Skiyohara 86*781c2fb3Skiyohara return netbsd; 87*781c2fb3Skiyohara } 88*781c2fb3Skiyohara 8968122621Skiyohara 9068122621Skiyohara void 9168122621Skiyohara ELF::ParseHeader(void) 9268122621Skiyohara { 9368122621Skiyohara struct loaddesc *loaddesc = LoadDescriptor; 9468122621Skiyohara Elf32_Ehdr ehdr; 9568122621Skiyohara Elf32_Phdr *phdr = NULL; 9668122621Skiyohara int PhdrSize, i; 9768122621Skiyohara 9868122621Skiyohara Mem::Copy(&ehdr, Buffer, sizeof(ehdr)); 9968122621Skiyohara PhdrSize = sizeof(Elf32_Phdr) * ehdr.e_phnum; 10068122621Skiyohara phdr = (Elf32_Phdr *) new (ELeave) TUint8[PhdrSize]; 10168122621Skiyohara Mem::Copy(phdr, Buffer + ehdr.e_phoff, PhdrSize); 10268122621Skiyohara 10368122621Skiyohara for (i = 0; i < ehdr.e_phnum; i++) { 10468122621Skiyohara if (phdr[i].p_type != PT_LOAD || 10568122621Skiyohara (phdr[i].p_flags & (PF_W | PF_X)) == 0) 10668122621Skiyohara continue; 10768122621Skiyohara 10868122621Skiyohara loaddesc->addr = VTOP(phdr[i].p_vaddr); 10968122621Skiyohara loaddesc->offset = phdr[i].p_offset; 11068122621Skiyohara loaddesc->size = phdr[i].p_filesz; 11168122621Skiyohara loaddesc++; 11268122621Skiyohara } 11368122621Skiyohara /* Terminate loaddesc. */ 11468122621Skiyohara loaddesc->addr = 0xffffffff; 11568122621Skiyohara loaddesc->offset = 0xffffffff; 11668122621Skiyohara loaddesc->size = 0xffffffff; 11768122621Skiyohara 11868122621Skiyohara EntryPoint = ehdr.e_entry; 11968122621Skiyohara } 120