From 05c86ec0d7662ccefc5690a4445fcf2976d16622 Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Tue, 6 Mar 2007 15:42:30 +0000 Subject: Get X86 to load an elf and start a process for it. src/arch/x86/SConscript: Add in process source files. src/arch/x86/isa_traits.hh: Replace magic constant numbers with the x86 register names. src/arch/x86/miscregfile.cc: Make clear the miscreg file succeed. There aren't any misc regs, so clearing them is very easy. src/arch/x86/process.hh: An X86 process class. src/base/loader/elf_object.cc: Add in code to recognize x86 as an architecture. src/base/traceflags.py: Add an x86 traceflag src/sim/process.cc: Add in code to create an x86 process. src/arch/x86/intregs.hh: A file which declares names for the integer register indices. src/arch/x86/linux/linux.cc: src/arch/x86/linux/linux.hh: A very simple translation of SPARC's linux.cc and linux.hh. It's probably not correct for x86, but it might not be correct for SPARC either. src/arch/x86/linux/process.cc: src/arch/x86/linux/process.hh: An x86 linux process. The syscall table is split out into it's own file. src/arch/x86/linux/syscalls.cc: The x86 Linux syscall table and the uname function. src/arch/x86/process.cc: The x86 process base class. tests/test-progs/hello/bin/x86/linux/hello: An x86 hello world test binary. --HG-- extra : convert_revision : f22919e010c07aeaf5757dca054d9877a537fd08 --- src/arch/x86/linux/process.cc | 109 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 src/arch/x86/linux/process.cc (limited to 'src/arch/x86/linux/process.cc') diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc new file mode 100644 index 000000000..9ef591a1c --- /dev/null +++ b/src/arch/x86/linux/process.cc @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2007 The Hewlett-Packard Development Company + * All rights reserved. + * + * Redistribution and use of this software in source and binary forms, + * with or without modification, are permitted provided that the + * following conditions are met: + * + * The software must be used only for Non-Commercial Use which means any + * use which is NOT directed to receiving any direct monetary + * compensation for, or commercial advantage from such use. Illustrative + * examples of non-commercial use are academic research, personal study, + * teaching, education and corporate research & development. + * Illustrative examples of commercial use are distributing products for + * commercial advantage and providing services using the software for + * commercial advantage. + * + * If you wish to use this software or functionality therein that may be + * covered by patents for commercial use, please contact: + * Director of Intellectual Property Licensing + * Office of Strategy and Technology + * Hewlett-Packard Company + * 1501 Page Mill Road + * Palo Alto, California 94304 + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. Redistributions + * in binary form must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. Neither the name of + * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. No right of + * sublicense is granted herewith. Derivatives of the software and + * output created using the software may be prepared, but only for + * Non-Commercial Uses. Derivatives of the software may be shared with + * others provided: (i) the others agree to abide by the list of + * conditions herein which includes the Non-Commercial Use restrictions; + * and (ii) such Derivatives of the software include the above copyright + * notice to acknowledge the contribution from this software where + * applicable, this list of conditions and the disclaimer below. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +#include "arch/x86/isa_traits.hh" +#include "arch/x86/linux/process.hh" +#include "arch/x86/regfile.hh" + +#include "base/trace.hh" +#include "cpu/thread_context.hh" +#include "kern/linux/linux.hh" + +#include "sim/process.hh" +#include "sim/syscall_emul.hh" + +using namespace std; +using namespace X86ISA; + +SyscallDesc* +X86LinuxProcess::getDesc(int callnum) +{ + if (callnum < 0 || callnum > Num_Syscall_Descs) + return NULL; + return &syscallDescs[callnum]; +} + +X86LinuxProcess::X86LinuxProcess(const std::string &name, + ObjectFile *objFile, + System * system, + int stdin_fd, + int stdout_fd, + int stderr_fd, + std::vector &argv, + std::vector &envp, + const std::string &cwd, + uint64_t _uid, uint64_t _euid, + uint64_t _gid, uint64_t _egid, + uint64_t _pid, uint64_t _ppid) + : X86LiveProcess(name, objFile, system, + stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd, + _uid, _euid, _gid, _egid, _pid, _ppid), + Num_Syscall_Descs(273) +{} + +void X86LinuxProcess::handleTrap(int trapNum, ThreadContext *tc) +{ + switch(trapNum) + { + //This implementation is from SPARC + case 0x10: //Linux 32 bit syscall trap + tc->syscall(tc->readIntReg(1)); + break; + default: + X86LiveProcess::handleTrap(trapNum, tc); + } +} -- cgit v1.2.3