syscall_emul.hh revision 3670
1360SN/A/* 21458SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 3360SN/A * All rights reserved. 4360SN/A * 5360SN/A * Redistribution and use in source and binary forms, with or without 6360SN/A * modification, are permitted provided that the following conditions are 7360SN/A * met: redistributions of source code must retain the above copyright 8360SN/A * notice, this list of conditions and the following disclaimer; 9360SN/A * redistributions in binary form must reproduce the above copyright 10360SN/A * notice, this list of conditions and the following disclaimer in the 11360SN/A * documentation and/or other materials provided with the distribution; 12360SN/A * neither the name of the copyright holders nor the names of its 13360SN/A * contributors may be used to endorse or promote products derived from 14360SN/A * this software without specific prior written permission. 15360SN/A * 16360SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17360SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18360SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19360SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20360SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21360SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22360SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23360SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24360SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25360SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26360SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 292665Ssaidi@eecs.umich.edu * Kevin Lim 30360SN/A */ 31360SN/A 321354SN/A#ifndef __SIM_SYSCALL_EMUL_HH__ 331354SN/A#define __SIM_SYSCALL_EMUL_HH__ 34360SN/A 352764Sstever@eecs.umich.edu#define NO_STAT64 (defined(__APPLE__) || defined(__OpenBSD__) || \ 362764Sstever@eecs.umich.edu defined(__FreeBSD__) || defined(__CYGWIN__)) 372064SN/A 38360SN/A/// 39360SN/A/// @file syscall_emul.hh 40360SN/A/// 41360SN/A/// This file defines objects used to emulate syscalls from the target 42360SN/A/// application on the host machine. 43360SN/A 441354SN/A#include <errno.h> 45360SN/A#include <string> 461809SN/A#ifdef __CYGWIN32__ 471809SN/A#include <sys/fcntl.h> // for O_BINARY 481809SN/A#endif 493113Sgblack@eecs.umich.edu#include <sys/stat.h> 503113Sgblack@eecs.umich.edu#include <fcntl.h> 511999SN/A#include <sys/uio.h> 52360SN/A 533113Sgblack@eecs.umich.edu#include "sim/host.hh" // for Addr 542474SN/A#include "base/chunk_generator.hh" 55360SN/A#include "base/intmath.hh" // for RoundUp 562462SN/A#include "base/misc.hh" 571354SN/A#include "base/trace.hh" 582474SN/A#include "cpu/base.hh" 592680Sktlim@umich.edu#include "cpu/thread_context.hh" 602474SN/A#include "mem/translating_port.hh" 612474SN/A#include "mem/page_table.hh" 621354SN/A#include "sim/process.hh" 63360SN/A 64360SN/A/// 65360SN/A/// System call descriptor. 66360SN/A/// 67360SN/Aclass SyscallDesc { 68360SN/A 69360SN/A public: 70360SN/A 71378SN/A /// Typedef for target syscall handler functions. 721450SN/A typedef SyscallReturn (*FuncPtr)(SyscallDesc *, int num, 733114Sgblack@eecs.umich.edu LiveProcess *, ThreadContext *); 74360SN/A 75360SN/A const char *name; //!< Syscall name (e.g., "open"). 76360SN/A FuncPtr funcPtr; //!< Pointer to emulation function. 77360SN/A int flags; //!< Flags (see Flags enum). 78360SN/A 79360SN/A /// Flag values for controlling syscall behavior. 80360SN/A enum Flags { 81360SN/A /// Don't set return regs according to funcPtr return value. 82360SN/A /// Used for syscalls with non-standard return conventions 832680Sktlim@umich.edu /// that explicitly set the ThreadContext regs (e.g., 84360SN/A /// sigreturn). 85360SN/A SuppressReturnValue = 1 86360SN/A }; 87360SN/A 88360SN/A /// Constructor. 89360SN/A SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0) 90360SN/A : name(_name), funcPtr(_funcPtr), flags(_flags) 91360SN/A { 92360SN/A } 93360SN/A 94360SN/A /// Emulate the syscall. Public interface for calling through funcPtr. 953114Sgblack@eecs.umich.edu void doSyscall(int callnum, LiveProcess *proc, ThreadContext *tc); 96360SN/A}; 97360SN/A 98360SN/A 99360SN/Aclass BaseBufferArg { 100360SN/A 101360SN/A public: 102360SN/A 103360SN/A BaseBufferArg(Addr _addr, int _size) : addr(_addr), size(_size) 104360SN/A { 105360SN/A bufPtr = new uint8_t[size]; 106360SN/A // clear out buffer: in case we only partially populate this, 107360SN/A // and then do a copyOut(), we want to make sure we don't 108360SN/A // introduce any random junk into the simulated address space 109360SN/A memset(bufPtr, 0, size); 110360SN/A } 111360SN/A 112360SN/A virtual ~BaseBufferArg() { delete [] bufPtr; } 113360SN/A 114360SN/A // 115360SN/A // copy data into simulator space (read from target memory) 116360SN/A // 1172400SN/A virtual bool copyIn(TranslatingPort *memport) 118360SN/A { 1192461SN/A memport->readBlob(addr, bufPtr, size); 120360SN/A return true; // no EFAULT detection for now 121360SN/A } 122360SN/A 123360SN/A // 124360SN/A // copy data out of simulator space (write to target memory) 125360SN/A // 1262400SN/A virtual bool copyOut(TranslatingPort *memport) 127360SN/A { 1282461SN/A memport->writeBlob(addr, bufPtr, size); 129360SN/A return true; // no EFAULT detection for now 130360SN/A } 131360SN/A 132360SN/A protected: 133360SN/A Addr addr; 134360SN/A int size; 135360SN/A uint8_t *bufPtr; 136360SN/A}; 137360SN/A 138360SN/A 139360SN/Aclass BufferArg : public BaseBufferArg 140360SN/A{ 141360SN/A public: 142360SN/A BufferArg(Addr _addr, int _size) : BaseBufferArg(_addr, _size) { } 143360SN/A void *bufferPtr() { return bufPtr; } 144360SN/A}; 145360SN/A 146360SN/Atemplate <class T> 147360SN/Aclass TypedBufferArg : public BaseBufferArg 148360SN/A{ 149360SN/A public: 150360SN/A // user can optionally specify a specific number of bytes to 151360SN/A // allocate to deal with those structs that have variable-size 152360SN/A // arrays at the end 153360SN/A TypedBufferArg(Addr _addr, int _size = sizeof(T)) 154360SN/A : BaseBufferArg(_addr, _size) 155360SN/A { } 156360SN/A 157360SN/A // type case 158360SN/A operator T*() { return (T *)bufPtr; } 159360SN/A 160360SN/A // dereference operators 161502SN/A T &operator*() { return *((T *)bufPtr); } 162360SN/A T* operator->() { return (T *)bufPtr; } 163502SN/A T &operator[](int i) { return ((T *)bufPtr)[i]; } 164360SN/A}; 165360SN/A 166360SN/A////////////////////////////////////////////////////////////////////// 167360SN/A// 168360SN/A// The following emulation functions are generic enough that they 169360SN/A// don't need to be recompiled for different emulated OS's. They are 170360SN/A// defined in sim/syscall_emul.cc. 171360SN/A// 172360SN/A////////////////////////////////////////////////////////////////////// 173360SN/A 174360SN/A 175378SN/A/// Handler for unimplemented syscalls that we haven't thought about. 1761706SN/ASyscallReturn unimplementedFunc(SyscallDesc *desc, int num, 1773114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 178378SN/A 179378SN/A/// Handler for unimplemented syscalls that we never intend to 180378SN/A/// implement (signal handling, etc.) and should not affect the correct 181378SN/A/// behavior of the program. Print a warning only if the appropriate 182378SN/A/// trace flag is enabled. Return success to the target program. 1831706SN/ASyscallReturn ignoreFunc(SyscallDesc *desc, int num, 1843114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 185360SN/A 186378SN/A/// Target exit() handler: terminate simulation. 1871706SN/ASyscallReturn exitFunc(SyscallDesc *desc, int num, 1883114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 189378SN/A 190378SN/A/// Target getpagesize() handler. 1911706SN/ASyscallReturn getpagesizeFunc(SyscallDesc *desc, int num, 1923114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 193378SN/A 194378SN/A/// Target obreak() handler: set brk address. 1951706SN/ASyscallReturn obreakFunc(SyscallDesc *desc, int num, 1963114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 197378SN/A 198378SN/A/// Target close() handler. 1991706SN/ASyscallReturn closeFunc(SyscallDesc *desc, int num, 2003114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 201378SN/A 202378SN/A/// Target read() handler. 2031706SN/ASyscallReturn readFunc(SyscallDesc *desc, int num, 2043114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 205378SN/A 206378SN/A/// Target write() handler. 2071706SN/ASyscallReturn writeFunc(SyscallDesc *desc, int num, 2083114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 209378SN/A 210378SN/A/// Target lseek() handler. 2111706SN/ASyscallReturn lseekFunc(SyscallDesc *desc, int num, 2123114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 213378SN/A 214378SN/A/// Target munmap() handler. 2151706SN/ASyscallReturn munmapFunc(SyscallDesc *desc, int num, 2163114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 217378SN/A 218378SN/A/// Target gethostname() handler. 2191706SN/ASyscallReturn gethostnameFunc(SyscallDesc *desc, int num, 2203114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 221360SN/A 222511SN/A/// Target unlink() handler. 2231706SN/ASyscallReturn unlinkFunc(SyscallDesc *desc, int num, 2243114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 225511SN/A 226511SN/A/// Target rename() handler. 2271706SN/ASyscallReturn renameFunc(SyscallDesc *desc, int num, 2283114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2291706SN/A 2301706SN/A 2311706SN/A/// Target truncate() handler. 2321706SN/ASyscallReturn truncateFunc(SyscallDesc *desc, int num, 2333114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2341706SN/A 2351706SN/A 2361706SN/A/// Target ftruncate() handler. 2371706SN/ASyscallReturn ftruncateFunc(SyscallDesc *desc, int num, 2383114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2391706SN/A 240511SN/A 2411999SN/A/// Target chown() handler. 2421999SN/ASyscallReturn chownFunc(SyscallDesc *desc, int num, 2433114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2441999SN/A 2451999SN/A 2461999SN/A/// Target fchown() handler. 2471999SN/ASyscallReturn fchownFunc(SyscallDesc *desc, int num, 2483114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2491999SN/A 2503079Sstever@eecs.umich.edu/// Target dup() handler. 2513079Sstever@eecs.umich.eduSyscallReturn dupFunc(SyscallDesc *desc, int num, 2523114Sgblack@eecs.umich.edu LiveProcess *process, ThreadContext *tc); 2533079Sstever@eecs.umich.edu 2542093SN/A/// Target fnctl() handler. 2552093SN/ASyscallReturn fcntlFunc(SyscallDesc *desc, int num, 2563114Sgblack@eecs.umich.edu LiveProcess *process, ThreadContext *tc); 2572093SN/A 2582687Sksewell@umich.edu/// Target fcntl64() handler. 2592687Sksewell@umich.eduSyscallReturn fcntl64Func(SyscallDesc *desc, int num, 2603114Sgblack@eecs.umich.edu LiveProcess *process, ThreadContext *tc); 2612687Sksewell@umich.edu 2622238SN/A/// Target setuid() handler. 2632238SN/ASyscallReturn setuidFunc(SyscallDesc *desc, int num, 2643114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2652238SN/A 2662238SN/A/// Target getpid() handler. 2672238SN/ASyscallReturn getpidFunc(SyscallDesc *desc, int num, 2683114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2692238SN/A 2702238SN/A/// Target getuid() handler. 2712238SN/ASyscallReturn getuidFunc(SyscallDesc *desc, int num, 2723114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2732238SN/A 2742238SN/A/// Target getgid() handler. 2752238SN/ASyscallReturn getgidFunc(SyscallDesc *desc, int num, 2763114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2772238SN/A 2782238SN/A/// Target getppid() handler. 2792238SN/ASyscallReturn getppidFunc(SyscallDesc *desc, int num, 2803114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2812238SN/A 2822238SN/A/// Target geteuid() handler. 2832238SN/ASyscallReturn geteuidFunc(SyscallDesc *desc, int num, 2843114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2852238SN/A 2862238SN/A/// Target getegid() handler. 2872238SN/ASyscallReturn getegidFunc(SyscallDesc *desc, int num, 2883114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 2892238SN/A 2902238SN/A 2912238SN/A 2922238SN/A/// Pseudo Funcs - These functions use a different return convension, 2932238SN/A/// returning a second value in a register other than the normal return register 2942238SN/ASyscallReturn pipePseudoFunc(SyscallDesc *desc, int num, 2953114Sgblack@eecs.umich.edu LiveProcess *process, ThreadContext *tc); 2962238SN/A 2972238SN/A/// Target getpidPseudo() handler. 2982238SN/ASyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num, 2993114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 3002238SN/A 3012238SN/A/// Target getuidPseudo() handler. 3022238SN/ASyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num, 3033114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 3042238SN/A 3052238SN/A/// Target getgidPseudo() handler. 3062238SN/ASyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num, 3073114Sgblack@eecs.umich.edu LiveProcess *p, ThreadContext *tc); 3082238SN/A 3092238SN/A 3101354SN/A/// A readable name for 1,000,000, for converting microseconds to seconds. 3111354SN/Aconst int one_million = 1000000; 3121354SN/A 3131354SN/A/// Approximate seconds since the epoch (1/1/1970). About a billion, 3141354SN/A/// by my reckoning. We want to keep this a constant (not use the 3151354SN/A/// real-world time) to keep simulations repeatable. 3161354SN/Aconst unsigned seconds_since_epoch = 1000000000; 3171354SN/A 3181354SN/A/// Helper function to convert current elapsed time to seconds and 3191354SN/A/// microseconds. 3201354SN/Atemplate <class T1, class T2> 3211354SN/Avoid 3221354SN/AgetElapsedTime(T1 &sec, T2 &usec) 3231354SN/A{ 3241609SN/A int elapsed_usecs = curTick / Clock::Int::us; 3251354SN/A sec = elapsed_usecs / one_million; 3261354SN/A usec = elapsed_usecs % one_million; 3271354SN/A} 3281354SN/A 329360SN/A////////////////////////////////////////////////////////////////////// 330360SN/A// 331360SN/A// The following emulation functions are generic, but need to be 332360SN/A// templated to account for differences in types, constants, etc. 333360SN/A// 334360SN/A////////////////////////////////////////////////////////////////////// 335360SN/A 3363113Sgblack@eecs.umich.edu#if NO_STAT64 3373113Sgblack@eecs.umich.edu typedef struct stat hst_stat; 3383113Sgblack@eecs.umich.edu typedef struct stat hst_stat64; 3393113Sgblack@eecs.umich.edu#else 3403113Sgblack@eecs.umich.edu typedef struct stat hst_stat; 3413113Sgblack@eecs.umich.edu typedef struct stat64 hst_stat64; 3423113Sgblack@eecs.umich.edu#endif 3433113Sgblack@eecs.umich.edu 3443113Sgblack@eecs.umich.edu//// Helper function to convert a host stat buffer to a target stat 3453113Sgblack@eecs.umich.edu//// buffer. Also copies the target buffer out to the simulated 3463113Sgblack@eecs.umich.edu//// memory space. Used by stat(), fstat(), and lstat(). 3473113Sgblack@eecs.umich.edu 3483113Sgblack@eecs.umich.edutemplate <typename target_stat, typename host_stat> 3493113Sgblack@eecs.umich.edustatic void 3503113Sgblack@eecs.umich.educonvertStatBuf(target_stat &tgt, host_stat *host, bool fakeTTY = false) 3513113Sgblack@eecs.umich.edu{ 3523113Sgblack@eecs.umich.edu if (fakeTTY) 3533113Sgblack@eecs.umich.edu tgt->st_dev = 0xA; 3543113Sgblack@eecs.umich.edu else 3553113Sgblack@eecs.umich.edu tgt->st_dev = host->st_dev; 3563113Sgblack@eecs.umich.edu tgt->st_dev = htog(tgt->st_dev); 3573113Sgblack@eecs.umich.edu tgt->st_ino = host->st_ino; 3583113Sgblack@eecs.umich.edu tgt->st_ino = htog(tgt->st_ino); 3593277Sgblack@eecs.umich.edu tgt->st_mode = host->st_mode; 3603277Sgblack@eecs.umich.edu tgt->st_mode = htog(tgt->st_mode); 3613277Sgblack@eecs.umich.edu tgt->st_nlink = host->st_nlink; 3623277Sgblack@eecs.umich.edu tgt->st_nlink = htog(tgt->st_nlink); 3633277Sgblack@eecs.umich.edu tgt->st_uid = host->st_uid; 3643277Sgblack@eecs.umich.edu tgt->st_uid = htog(tgt->st_uid); 3653277Sgblack@eecs.umich.edu tgt->st_gid = host->st_gid; 3663277Sgblack@eecs.umich.edu tgt->st_gid = htog(tgt->st_gid); 3673113Sgblack@eecs.umich.edu if (fakeTTY) 3683113Sgblack@eecs.umich.edu tgt->st_rdev = 0x880d; 3693113Sgblack@eecs.umich.edu else 3703113Sgblack@eecs.umich.edu tgt->st_rdev = host->st_rdev; 3713113Sgblack@eecs.umich.edu tgt->st_rdev = htog(tgt->st_rdev); 3723113Sgblack@eecs.umich.edu tgt->st_size = host->st_size; 3733113Sgblack@eecs.umich.edu tgt->st_size = htog(tgt->st_size); 3743114Sgblack@eecs.umich.edu tgt->st_atimeX = host->st_atime; 3753113Sgblack@eecs.umich.edu tgt->st_atimeX = htog(tgt->st_atimeX); 3763114Sgblack@eecs.umich.edu tgt->st_mtimeX = host->st_mtime; 3773113Sgblack@eecs.umich.edu tgt->st_mtimeX = htog(tgt->st_mtimeX); 3783114Sgblack@eecs.umich.edu tgt->st_ctimeX = host->st_ctime; 3793113Sgblack@eecs.umich.edu tgt->st_ctimeX = htog(tgt->st_ctimeX); 3803113Sgblack@eecs.umich.edu tgt->st_blksize = host->st_blksize; 3813113Sgblack@eecs.umich.edu tgt->st_blksize = htog(tgt->st_blksize); 3823113Sgblack@eecs.umich.edu tgt->st_blocks = host->st_blocks; 3833113Sgblack@eecs.umich.edu tgt->st_blocks = htog(tgt->st_blocks); 3843113Sgblack@eecs.umich.edu} 3853113Sgblack@eecs.umich.edu 3863113Sgblack@eecs.umich.edu// Same for stat64 3873113Sgblack@eecs.umich.edu 3883113Sgblack@eecs.umich.edutemplate <typename target_stat, typename host_stat64> 3893113Sgblack@eecs.umich.edustatic void 3903113Sgblack@eecs.umich.educonvertStat64Buf(target_stat &tgt, host_stat64 *host, bool fakeTTY = false) 3913113Sgblack@eecs.umich.edu{ 3923113Sgblack@eecs.umich.edu convertStatBuf<target_stat, host_stat64>(tgt, host, fakeTTY); 3933113Sgblack@eecs.umich.edu#if defined(STAT_HAVE_NSEC) 3943113Sgblack@eecs.umich.edu tgt->st_atime_nsec = host->st_atime_nsec; 3953113Sgblack@eecs.umich.edu tgt->st_atime_nsec = htog(tgt->st_atime_nsec); 3963113Sgblack@eecs.umich.edu tgt->st_mtime_nsec = host->st_mtime_nsec; 3973113Sgblack@eecs.umich.edu tgt->st_mtime_nsec = htog(tgt->st_mtime_nsec); 3983113Sgblack@eecs.umich.edu tgt->st_ctime_nsec = host->st_ctime_nsec; 3993113Sgblack@eecs.umich.edu tgt->st_ctime_nsec = htog(tgt->st_ctime_nsec); 4003113Sgblack@eecs.umich.edu#else 4013113Sgblack@eecs.umich.edu tgt->st_atime_nsec = 0; 4023113Sgblack@eecs.umich.edu tgt->st_mtime_nsec = 0; 4033113Sgblack@eecs.umich.edu tgt->st_ctime_nsec = 0; 4043113Sgblack@eecs.umich.edu#endif 4053113Sgblack@eecs.umich.edu} 4063113Sgblack@eecs.umich.edu 4073113Sgblack@eecs.umich.edu//Here are a couple convenience functions 4083113Sgblack@eecs.umich.edutemplate<class OS> 4093113Sgblack@eecs.umich.edustatic void 4103113Sgblack@eecs.umich.educopyOutStatBuf(TranslatingPort * mem, Addr addr, 4113113Sgblack@eecs.umich.edu hst_stat *host, bool fakeTTY = false) 4123113Sgblack@eecs.umich.edu{ 4133113Sgblack@eecs.umich.edu typedef TypedBufferArg<typename OS::tgt_stat> tgt_stat_buf; 4143113Sgblack@eecs.umich.edu tgt_stat_buf tgt(addr); 4153113Sgblack@eecs.umich.edu convertStatBuf<tgt_stat_buf, hst_stat>(tgt, host, fakeTTY); 4163113Sgblack@eecs.umich.edu tgt.copyOut(mem); 4173113Sgblack@eecs.umich.edu} 4183113Sgblack@eecs.umich.edu 4193113Sgblack@eecs.umich.edutemplate<class OS> 4203113Sgblack@eecs.umich.edustatic void 4213113Sgblack@eecs.umich.educopyOutStat64Buf(TranslatingPort * mem, Addr addr, 4223113Sgblack@eecs.umich.edu hst_stat64 *host, bool fakeTTY = false) 4233113Sgblack@eecs.umich.edu{ 4243113Sgblack@eecs.umich.edu typedef TypedBufferArg<typename OS::tgt_stat64> tgt_stat_buf; 4253113Sgblack@eecs.umich.edu tgt_stat_buf tgt(addr); 4263113Sgblack@eecs.umich.edu convertStatBuf<tgt_stat_buf, hst_stat64>(tgt, host, fakeTTY); 4273113Sgblack@eecs.umich.edu tgt.copyOut(mem); 4283113Sgblack@eecs.umich.edu} 4293113Sgblack@eecs.umich.edu 430378SN/A/// Target ioctl() handler. For the most part, programs call ioctl() 431378SN/A/// only to find out if their stdout is a tty, to determine whether to 432378SN/A/// do line or block buffering. 433360SN/Atemplate <class OS> 4341450SN/ASyscallReturn 4353114Sgblack@eecs.umich.eduioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 4362680Sktlim@umich.edu ThreadContext *tc) 437360SN/A{ 4382680Sktlim@umich.edu int fd = tc->getSyscallArg(0); 4392680Sktlim@umich.edu unsigned req = tc->getSyscallArg(1); 440360SN/A 4411969SN/A DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req); 442360SN/A 443360SN/A if (fd < 0 || process->sim_fd(fd) < 0) { 444360SN/A // doesn't map to any simulator fd: not a valid target fd 4451458SN/A return -EBADF; 446360SN/A } 447360SN/A 448360SN/A switch (req) { 4492553SN/A case OS::TIOCISATTY: 4502553SN/A case OS::TIOCGETP: 4512553SN/A case OS::TIOCSETP: 4522553SN/A case OS::TIOCSETN: 4532553SN/A case OS::TIOCSETC: 4542553SN/A case OS::TIOCGETC: 4552553SN/A case OS::TIOCGETS: 4562553SN/A case OS::TIOCGETA: 4571458SN/A return -ENOTTY; 458360SN/A 459360SN/A default: 4601706SN/A fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...) @ 0x%llx\n", 4612680Sktlim@umich.edu fd, req, tc->readPC()); 462360SN/A } 463360SN/A} 464360SN/A 465378SN/A/// Target open() handler. 466360SN/Atemplate <class OS> 4671450SN/ASyscallReturn 4683114Sgblack@eecs.umich.eduopenFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 4692680Sktlim@umich.edu ThreadContext *tc) 470360SN/A{ 471360SN/A std::string path; 472360SN/A 4732680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 4741458SN/A return -EFAULT; 475360SN/A 476360SN/A if (path == "/dev/sysdev0") { 477360SN/A // This is a memory-mapped high-resolution timer device on Alpha. 478360SN/A // We don't support it, so just punt. 4791706SN/A warn("Ignoring open(%s, ...)\n", path); 4801458SN/A return -ENOENT; 481360SN/A } 482360SN/A 4832680Sktlim@umich.edu int tgtFlags = tc->getSyscallArg(1); 4842680Sktlim@umich.edu int mode = tc->getSyscallArg(2); 485360SN/A int hostFlags = 0; 486360SN/A 487360SN/A // translate open flags 488360SN/A for (int i = 0; i < OS::NUM_OPEN_FLAGS; i++) { 489360SN/A if (tgtFlags & OS::openFlagTable[i].tgtFlag) { 490360SN/A tgtFlags &= ~OS::openFlagTable[i].tgtFlag; 491360SN/A hostFlags |= OS::openFlagTable[i].hostFlag; 492360SN/A } 493360SN/A } 494360SN/A 495360SN/A // any target flags left? 496360SN/A if (tgtFlags != 0) 4971706SN/A warn("Syscall: open: cannot decode flags 0x%x", tgtFlags); 498360SN/A 499360SN/A#ifdef __CYGWIN32__ 500360SN/A hostFlags |= O_BINARY; 501360SN/A#endif 502360SN/A 5033669Sbinkertn@umich.edu // Adjust path for current working directory 5043669Sbinkertn@umich.edu path = process->fullPath(path); 5053669Sbinkertn@umich.edu 5061706SN/A DPRINTF(SyscallVerbose, "opening file %s\n", path.c_str()); 5071706SN/A 508360SN/A // open the file 509360SN/A int fd = open(path.c_str(), hostFlags, mode); 510360SN/A 5111970SN/A return (fd == -1) ? -errno : process->alloc_fd(fd); 512360SN/A} 513360SN/A 514360SN/A 5151999SN/A/// Target chmod() handler. 5161999SN/Atemplate <class OS> 5171999SN/ASyscallReturn 5183114Sgblack@eecs.umich.educhmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 5192680Sktlim@umich.edu ThreadContext *tc) 5201999SN/A{ 5211999SN/A std::string path; 5221999SN/A 5232680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 5241999SN/A return -EFAULT; 5251999SN/A 5262680Sktlim@umich.edu uint32_t mode = tc->getSyscallArg(1); 5271999SN/A mode_t hostMode = 0; 5281999SN/A 5291999SN/A // XXX translate mode flags via OS::something??? 5301999SN/A hostMode = mode; 5311999SN/A 5323669Sbinkertn@umich.edu // Adjust path for current working directory 5333669Sbinkertn@umich.edu path = process->fullPath(path); 5343669Sbinkertn@umich.edu 5351999SN/A // do the chmod 5361999SN/A int result = chmod(path.c_str(), hostMode); 5371999SN/A if (result < 0) 5382218SN/A return -errno; 5391999SN/A 5401999SN/A return 0; 5411999SN/A} 5421999SN/A 5431999SN/A 5441999SN/A/// Target fchmod() handler. 5451999SN/Atemplate <class OS> 5461999SN/ASyscallReturn 5473114Sgblack@eecs.umich.edufchmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 5482680Sktlim@umich.edu ThreadContext *tc) 5491999SN/A{ 5502680Sktlim@umich.edu int fd = tc->getSyscallArg(0); 5511999SN/A if (fd < 0 || process->sim_fd(fd) < 0) { 5521999SN/A // doesn't map to any simulator fd: not a valid target fd 5531999SN/A return -EBADF; 5541999SN/A } 5551999SN/A 5562680Sktlim@umich.edu uint32_t mode = tc->getSyscallArg(1); 5571999SN/A mode_t hostMode = 0; 5581999SN/A 5591999SN/A // XXX translate mode flags via OS::someting??? 5601999SN/A hostMode = mode; 5611999SN/A 5621999SN/A // do the fchmod 5631999SN/A int result = fchmod(process->sim_fd(fd), hostMode); 5641999SN/A if (result < 0) 5652218SN/A return -errno; 5661999SN/A 5671999SN/A return 0; 5681999SN/A} 5691999SN/A 5701999SN/A 571378SN/A/// Target stat() handler. 572360SN/Atemplate <class OS> 5731450SN/ASyscallReturn 5743114Sgblack@eecs.umich.edustatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 5752680Sktlim@umich.edu ThreadContext *tc) 576360SN/A{ 577360SN/A std::string path; 578360SN/A 5792680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 5802400SN/A return -EFAULT; 581360SN/A 5823669Sbinkertn@umich.edu // Adjust path for current working directory 5833669Sbinkertn@umich.edu path = process->fullPath(path); 5843669Sbinkertn@umich.edu 585360SN/A struct stat hostBuf; 586360SN/A int result = stat(path.c_str(), &hostBuf); 587360SN/A 588360SN/A if (result < 0) 5892218SN/A return -errno; 590360SN/A 5913113Sgblack@eecs.umich.edu copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); 592360SN/A 5931458SN/A return 0; 594360SN/A} 595360SN/A 596360SN/A 5971999SN/A/// Target fstat64() handler. 5981999SN/Atemplate <class OS> 5991999SN/ASyscallReturn 6003114Sgblack@eecs.umich.edufstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, 6012680Sktlim@umich.edu ThreadContext *tc) 6021999SN/A{ 6032680Sktlim@umich.edu int fd = tc->getSyscallArg(0); 6041999SN/A if (fd < 0 || process->sim_fd(fd) < 0) { 6051999SN/A // doesn't map to any simulator fd: not a valid target fd 6061999SN/A return -EBADF; 6071999SN/A } 6081999SN/A 6092764Sstever@eecs.umich.edu#if NO_STAT64 6102064SN/A struct stat hostBuf; 6112064SN/A int result = fstat(process->sim_fd(fd), &hostBuf); 6122064SN/A#else 6132064SN/A struct stat64 hostBuf; 6141999SN/A int result = fstat64(process->sim_fd(fd), &hostBuf); 6152064SN/A#endif 6161999SN/A 6171999SN/A if (result < 0) 6182218SN/A return -errno; 6191999SN/A 6203114Sgblack@eecs.umich.edu copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), 6213114Sgblack@eecs.umich.edu &hostBuf, (fd == 1)); 6221999SN/A 6231999SN/A return 0; 6241999SN/A} 6251999SN/A 6261999SN/A 627378SN/A/// Target lstat() handler. 628360SN/Atemplate <class OS> 6291450SN/ASyscallReturn 6303114Sgblack@eecs.umich.edulstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 6312680Sktlim@umich.edu ThreadContext *tc) 632360SN/A{ 633360SN/A std::string path; 634360SN/A 6352680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 6362400SN/A return -EFAULT; 637360SN/A 6383669Sbinkertn@umich.edu // Adjust path for current working directory 6393669Sbinkertn@umich.edu path = process->fullPath(path); 6403669Sbinkertn@umich.edu 641360SN/A struct stat hostBuf; 642360SN/A int result = lstat(path.c_str(), &hostBuf); 643360SN/A 644360SN/A if (result < 0) 6451458SN/A return -errno; 646360SN/A 6473113Sgblack@eecs.umich.edu copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); 648360SN/A 6491458SN/A return 0; 650360SN/A} 651360SN/A 6521999SN/A/// Target lstat64() handler. 6531999SN/Atemplate <class OS> 6541999SN/ASyscallReturn 6553114Sgblack@eecs.umich.edulstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, 6562680Sktlim@umich.edu ThreadContext *tc) 6571999SN/A{ 6581999SN/A std::string path; 6591999SN/A 6602680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 6612400SN/A return -EFAULT; 6621999SN/A 6633669Sbinkertn@umich.edu // Adjust path for current working directory 6643669Sbinkertn@umich.edu path = process->fullPath(path); 6653669Sbinkertn@umich.edu 6662764Sstever@eecs.umich.edu#if NO_STAT64 6672064SN/A struct stat hostBuf; 6682064SN/A int result = lstat(path.c_str(), &hostBuf); 6692064SN/A#else 6701999SN/A struct stat64 hostBuf; 6711999SN/A int result = lstat64(path.c_str(), &hostBuf); 6722064SN/A#endif 6731999SN/A 6741999SN/A if (result < 0) 6751999SN/A return -errno; 6761999SN/A 6773114Sgblack@eecs.umich.edu copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); 6781999SN/A 6791999SN/A return 0; 6801999SN/A} 6811999SN/A 682378SN/A/// Target fstat() handler. 683360SN/Atemplate <class OS> 6841450SN/ASyscallReturn 6853114Sgblack@eecs.umich.edufstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 6862680Sktlim@umich.edu ThreadContext *tc) 687360SN/A{ 6882680Sktlim@umich.edu int fd = process->sim_fd(tc->getSyscallArg(0)); 689360SN/A 6901969SN/A DPRINTF(SyscallVerbose, "fstat(%d, ...)\n", fd); 691360SN/A 692360SN/A if (fd < 0) 6931458SN/A return -EBADF; 694360SN/A 695360SN/A struct stat hostBuf; 696360SN/A int result = fstat(fd, &hostBuf); 697360SN/A 698360SN/A if (result < 0) 6991458SN/A return -errno; 700360SN/A 7013114Sgblack@eecs.umich.edu copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), 7023114Sgblack@eecs.umich.edu &hostBuf, (fd == 1)); 7032021SN/A 7041458SN/A return 0; 705360SN/A} 706360SN/A 707360SN/A 7081706SN/A/// Target statfs() handler. 7091706SN/Atemplate <class OS> 7101706SN/ASyscallReturn 7113114Sgblack@eecs.umich.edustatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 7122680Sktlim@umich.edu ThreadContext *tc) 7131706SN/A{ 7141706SN/A std::string path; 7151706SN/A 7162680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 7172400SN/A return -EFAULT; 7181706SN/A 7193669Sbinkertn@umich.edu // Adjust path for current working directory 7203669Sbinkertn@umich.edu path = process->fullPath(path); 7213669Sbinkertn@umich.edu 7221706SN/A struct statfs hostBuf; 7231706SN/A int result = statfs(path.c_str(), &hostBuf); 7241706SN/A 7251706SN/A if (result < 0) 7262218SN/A return -errno; 7271706SN/A 7283114Sgblack@eecs.umich.edu OS::copyOutStatfsBuf(tc->getMemPort(), 7293114Sgblack@eecs.umich.edu (Addr)(tc->getSyscallArg(1)), &hostBuf); 7301706SN/A 7311706SN/A return 0; 7321706SN/A} 7331706SN/A 7341706SN/A 7351706SN/A/// Target fstatfs() handler. 7361706SN/Atemplate <class OS> 7371706SN/ASyscallReturn 7383114Sgblack@eecs.umich.edufstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 7392680Sktlim@umich.edu ThreadContext *tc) 7401706SN/A{ 7412680Sktlim@umich.edu int fd = process->sim_fd(tc->getSyscallArg(0)); 7421706SN/A 7431706SN/A if (fd < 0) 7441706SN/A return -EBADF; 7451706SN/A 7461706SN/A struct statfs hostBuf; 7471706SN/A int result = fstatfs(fd, &hostBuf); 7481706SN/A 7491706SN/A if (result < 0) 7502218SN/A return -errno; 7511706SN/A 7523114Sgblack@eecs.umich.edu OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), 7533114Sgblack@eecs.umich.edu &hostBuf); 7541706SN/A 7551706SN/A return 0; 7561706SN/A} 7571706SN/A 7581706SN/A 7591999SN/A/// Target writev() handler. 7601999SN/Atemplate <class OS> 7611999SN/ASyscallReturn 7623114Sgblack@eecs.umich.eduwritevFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 7632680Sktlim@umich.edu ThreadContext *tc) 7641999SN/A{ 7652680Sktlim@umich.edu int fd = tc->getSyscallArg(0); 7661999SN/A if (fd < 0 || process->sim_fd(fd) < 0) { 7671999SN/A // doesn't map to any simulator fd: not a valid target fd 7681999SN/A return -EBADF; 7691999SN/A } 7701999SN/A 7712680Sktlim@umich.edu TranslatingPort *p = tc->getMemPort(); 7722680Sktlim@umich.edu uint64_t tiov_base = tc->getSyscallArg(1); 7732680Sktlim@umich.edu size_t count = tc->getSyscallArg(2); 7741999SN/A struct iovec hiov[count]; 7751999SN/A for (int i = 0; i < count; ++i) 7761999SN/A { 7771999SN/A typename OS::tgt_iovec tiov; 7782461SN/A 7792461SN/A p->readBlob(tiov_base + i*sizeof(typename OS::tgt_iovec), 7802461SN/A (uint8_t*)&tiov, sizeof(typename OS::tgt_iovec)); 7812091SN/A hiov[i].iov_len = gtoh(tiov.iov_len); 7821999SN/A hiov[i].iov_base = new char [hiov[i].iov_len]; 7832461SN/A p->readBlob(gtoh(tiov.iov_base), (uint8_t *)hiov[i].iov_base, 7842461SN/A hiov[i].iov_len); 7851999SN/A } 7861999SN/A 7871999SN/A int result = writev(process->sim_fd(fd), hiov, count); 7881999SN/A 7891999SN/A for (int i = 0; i < count; ++i) 7901999SN/A { 7911999SN/A delete [] (char *)hiov[i].iov_base; 7921999SN/A } 7931999SN/A 7941999SN/A if (result < 0) 7952218SN/A return -errno; 7961999SN/A 7971999SN/A return 0; 7981999SN/A} 7991999SN/A 8001999SN/A 801378SN/A/// Target mmap() handler. 802378SN/A/// 803378SN/A/// We don't really handle mmap(). If the target is mmaping an 804378SN/A/// anonymous region or /dev/zero, we can get away with doing basically 805378SN/A/// nothing (since memory is initialized to zero and the simulator 806378SN/A/// doesn't really check addresses anyway). Always print a warning, 807378SN/A/// since this could be seriously broken if we're not mapping 808378SN/A/// /dev/zero. 809360SN/A// 810378SN/A/// Someday we should explicitly check for /dev/zero in open, flag the 811378SN/A/// file descriptor, and fail (or implement!) a non-anonymous mmap to 812378SN/A/// anything else. 813360SN/Atemplate <class OS> 8141450SN/ASyscallReturn 8153114Sgblack@eecs.umich.edummapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) 816360SN/A{ 8172680Sktlim@umich.edu Addr start = tc->getSyscallArg(0); 8182680Sktlim@umich.edu uint64_t length = tc->getSyscallArg(1); 8192680Sktlim@umich.edu // int prot = tc->getSyscallArg(2); 8202680Sktlim@umich.edu int flags = tc->getSyscallArg(3); 8212680Sktlim@umich.edu // int fd = p->sim_fd(tc->getSyscallArg(4)); 8222680Sktlim@umich.edu // int offset = tc->getSyscallArg(5); 823360SN/A 8242544SN/A if ((start % TheISA::VMPageSize) != 0 || 8252544SN/A (length % TheISA::VMPageSize) != 0) { 8262544SN/A warn("mmap failing: arguments not page-aligned: " 8272544SN/A "start 0x%x length 0x%x", 8282544SN/A start, length); 8292544SN/A return -EINVAL; 830360SN/A } 831360SN/A 8322544SN/A if (start != 0) { 8332544SN/A warn("mmap: ignoring suggested map address 0x%x, using 0x%x", 8342544SN/A start, p->mmap_end); 8352544SN/A } 8362544SN/A 8372544SN/A // pick next address from our "mmap region" 8382544SN/A start = p->mmap_end; 8392544SN/A p->pTable->allocate(start, length); 8402544SN/A p->mmap_end += length; 8412544SN/A 8422553SN/A if (!(flags & OS::TGT_MAP_ANONYMOUS)) { 8431969SN/A warn("allowing mmap of file @ fd %d. " 8442680Sktlim@umich.edu "This will break if not /dev/zero.", tc->getSyscallArg(4)); 845360SN/A } 846360SN/A 8471458SN/A return start; 848360SN/A} 849360SN/A 850378SN/A/// Target getrlimit() handler. 851360SN/Atemplate <class OS> 8521450SN/ASyscallReturn 8533114Sgblack@eecs.umich.edugetrlimitFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 8542680Sktlim@umich.edu ThreadContext *tc) 855360SN/A{ 8562680Sktlim@umich.edu unsigned resource = tc->getSyscallArg(0); 8572680Sktlim@umich.edu TypedBufferArg<typename OS::rlimit> rlp(tc->getSyscallArg(1)); 858360SN/A 859360SN/A switch (resource) { 8602064SN/A case OS::TGT_RLIMIT_STACK: 8612064SN/A // max stack size in bytes: make up a number (2MB for now) 8622064SN/A rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024; 8632091SN/A rlp->rlim_cur = htog(rlp->rlim_cur); 8642091SN/A rlp->rlim_max = htog(rlp->rlim_max); 8652064SN/A break; 866360SN/A 8672064SN/A default: 8682064SN/A std::cerr << "getrlimitFunc: unimplemented resource " << resource 8692064SN/A << std::endl; 8702064SN/A abort(); 8712064SN/A break; 872360SN/A } 873360SN/A 8742680Sktlim@umich.edu rlp.copyOut(tc->getMemPort()); 8751458SN/A return 0; 876360SN/A} 877360SN/A 878378SN/A/// Target gettimeofday() handler. 879360SN/Atemplate <class OS> 8801450SN/ASyscallReturn 8813114Sgblack@eecs.umich.edugettimeofdayFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 8822680Sktlim@umich.edu ThreadContext *tc) 883360SN/A{ 8842680Sktlim@umich.edu TypedBufferArg<typename OS::timeval> tp(tc->getSyscallArg(0)); 885360SN/A 886360SN/A getElapsedTime(tp->tv_sec, tp->tv_usec); 887360SN/A tp->tv_sec += seconds_since_epoch; 8882091SN/A tp->tv_sec = htog(tp->tv_sec); 8892091SN/A tp->tv_usec = htog(tp->tv_usec); 890360SN/A 8912680Sktlim@umich.edu tp.copyOut(tc->getMemPort()); 892360SN/A 8931458SN/A return 0; 894360SN/A} 895360SN/A 896360SN/A 8971999SN/A/// Target utimes() handler. 8981999SN/Atemplate <class OS> 8991999SN/ASyscallReturn 9003114Sgblack@eecs.umich.eduutimesFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 9012680Sktlim@umich.edu ThreadContext *tc) 9021999SN/A{ 9031999SN/A std::string path; 9041999SN/A 9052680Sktlim@umich.edu if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) 9062400SN/A return -EFAULT; 9071999SN/A 9082680Sktlim@umich.edu TypedBufferArg<typename OS::timeval [2]> tp(tc->getSyscallArg(1)); 9092680Sktlim@umich.edu tp.copyIn(tc->getMemPort()); 9101999SN/A 9111999SN/A struct timeval hostTimeval[2]; 9121999SN/A for (int i = 0; i < 2; ++i) 9131999SN/A { 9142091SN/A hostTimeval[i].tv_sec = gtoh((*tp)[i].tv_sec); 9152091SN/A hostTimeval[i].tv_usec = gtoh((*tp)[i].tv_usec); 9161999SN/A } 9173669Sbinkertn@umich.edu 9183669Sbinkertn@umich.edu // Adjust path for current working directory 9193669Sbinkertn@umich.edu path = process->fullPath(path); 9203669Sbinkertn@umich.edu 9211999SN/A int result = utimes(path.c_str(), hostTimeval); 9221999SN/A 9231999SN/A if (result < 0) 9241999SN/A return -errno; 9251999SN/A 9261999SN/A return 0; 9271999SN/A} 928378SN/A/// Target getrusage() function. 929360SN/Atemplate <class OS> 9301450SN/ASyscallReturn 9313114Sgblack@eecs.umich.edugetrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process, 9322680Sktlim@umich.edu ThreadContext *tc) 933360SN/A{ 9342680Sktlim@umich.edu int who = tc->getSyscallArg(0); // THREAD, SELF, or CHILDREN 9352680Sktlim@umich.edu TypedBufferArg<typename OS::rusage> rup(tc->getSyscallArg(1)); 936360SN/A 9373670Sbinkertn@umich.edu rup->ru_utime.tv_sec = 0; 9383670Sbinkertn@umich.edu rup->ru_utime.tv_usec = 0; 939360SN/A rup->ru_stime.tv_sec = 0; 940360SN/A rup->ru_stime.tv_usec = 0; 941360SN/A rup->ru_maxrss = 0; 942360SN/A rup->ru_ixrss = 0; 943360SN/A rup->ru_idrss = 0; 944360SN/A rup->ru_isrss = 0; 945360SN/A rup->ru_minflt = 0; 946360SN/A rup->ru_majflt = 0; 947360SN/A rup->ru_nswap = 0; 948360SN/A rup->ru_inblock = 0; 949360SN/A rup->ru_oublock = 0; 950360SN/A rup->ru_msgsnd = 0; 951360SN/A rup->ru_msgrcv = 0; 952360SN/A rup->ru_nsignals = 0; 953360SN/A rup->ru_nvcsw = 0; 954360SN/A rup->ru_nivcsw = 0; 955360SN/A 9563670Sbinkertn@umich.edu switch (who) { 9573670Sbinkertn@umich.edu case OS::TGT_RUSAGE_SELF: 9583670Sbinkertn@umich.edu getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec); 9593670Sbinkertn@umich.edu rup->ru_utime.tv_sec = htog(rup->ru_utime.tv_sec); 9603670Sbinkertn@umich.edu rup->ru_utime.tv_usec = htog(rup->ru_utime.tv_usec); 9613670Sbinkertn@umich.edu break; 9623670Sbinkertn@umich.edu 9633670Sbinkertn@umich.edu case OS::TGT_RUSAGE_CHILDREN: 9643670Sbinkertn@umich.edu // do nothing. We have no child processes, so they take no time. 9653670Sbinkertn@umich.edu break; 9663670Sbinkertn@umich.edu 9673670Sbinkertn@umich.edu default: 9683670Sbinkertn@umich.edu // don't really handle THREAD or CHILDREN, but just warn and 9693670Sbinkertn@umich.edu // plow ahead 9703670Sbinkertn@umich.edu warn("getrusage() only supports RUSAGE_SELF. Parameter %d ignored.", 9713670Sbinkertn@umich.edu who); 9723670Sbinkertn@umich.edu } 9733670Sbinkertn@umich.edu 9742680Sktlim@umich.edu rup.copyOut(tc->getMemPort()); 975360SN/A 9761458SN/A return 0; 977360SN/A} 978360SN/A 9792553SN/A 9802553SN/A 9812553SN/A 9821354SN/A#endif // __SIM_SYSCALL_EMUL_HH__ 983