diff options
Diffstat (limited to 'src/sim')
| -rw-r--r-- | src/sim/System.py | 5 | ||||
| -rw-r--r-- | src/sim/arguments.cc | 5 | ||||
| -rw-r--r-- | src/sim/eventq.hh | 2 | ||||
| -rw-r--r-- | src/sim/process.cc | 28 | ||||
| -rw-r--r-- | src/sim/process.hh | 12 | ||||
| -rw-r--r-- | src/sim/pseudo_inst.cc | 4 | ||||
| -rw-r--r-- | src/sim/syscall_emul.cc | 215 | ||||
| -rw-r--r-- | src/sim/syscall_emul.hh | 238 | ||||
| -rw-r--r-- | src/sim/system.cc | 3 | ||||
| -rw-r--r-- | src/sim/system.hh | 8 |
10 files changed, 379 insertions, 141 deletions
diff --git a/src/sim/System.py b/src/sim/System.py index 3b0bc1e46..06a54a78d 100644 --- a/src/sim/System.py +++ b/src/sim/System.py @@ -27,9 +27,10 @@ # Authors: Nathan Binkert from m5.SimObject import SimObject +from m5.defines import buildEnv from m5.params import * from m5.proxy import * -from m5 import build_env + from PhysicalMemory import * class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing'] @@ -40,7 +41,7 @@ class System(SimObject): physmem = Param.PhysicalMemory(Parent.any, "physical memory") mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in") - if build_env['FULL_SYSTEM']: + if buildEnv['FULL_SYSTEM']: abstract = True boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency, "boot processor frequency") diff --git a/src/sim/arguments.cc b/src/sim/arguments.cc index 5aa57755a..339a57f90 100644 --- a/src/sim/arguments.cc +++ b/src/sim/arguments.cc @@ -28,11 +28,10 @@ * Authors: Nathan Binkert */ -#include "sim/arguments.hh" #include "arch/utility.hh" +#include "config/the_isa.hh" #include "cpu/thread_context.hh" - -using namespace TheISA; +#include "sim/arguments.hh" Arguments::Data::~Data() { diff --git a/src/sim/eventq.hh b/src/sim/eventq.hh index 29efdeb6f..92c38142c 100644 --- a/src/sim/eventq.hh +++ b/src/sim/eventq.hh @@ -471,7 +471,7 @@ class EventWrapper : public Event inline void EventQueue::schedule(Event *event, Tick when) { - assert(when >= curTick); + assert((UTick)when >= (UTick)curTick); assert(!event->scheduled()); #ifdef EVENTQ_DEBUG assert((event->flags & Event::Initialized) == Event::Initialized); diff --git a/src/sim/process.cc b/src/sim/process.cc index 55bd2f209..343d2ad5a 100644 --- a/src/sim/process.cc +++ b/src/sim/process.cc @@ -32,6 +32,8 @@ #include <unistd.h> #include <fcntl.h> + +#include <cstdio> #include <string> #include "arch/remote_gdb.hh" @@ -40,6 +42,7 @@ #include "base/loader/symtab.hh" #include "base/statistics.hh" #include "config/full_system.hh" +#include "config/the_isa.hh" #include "cpu/thread_context.hh" #include "mem/page_table.hh" #include "mem/physical.hh" @@ -53,7 +56,6 @@ #include "sim/syscall_emul.hh" #include "sim/system.hh" -#include "arch/isa_specific.hh" #if THE_ISA == ALPHA_ISA #include "arch/alpha/linux/process.hh" #include "arch/alpha/tru64/process.hh" @@ -66,6 +68,8 @@ #include "arch/arm/linux/process.hh" #elif THE_ISA == X86_ISA #include "arch/x86/linux/process.hh" +#elif THE_ISA == POWER_ISA +#include "arch/power/linux/process.hh" #else #error "THE_ISA not set" #endif @@ -626,7 +630,7 @@ LiveProcess::argsInit(int intSize, int pageSize) tc->setPC(prog_entry); tc->setNextPC(prog_entry + sizeof(MachInst)); -#if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc +#if THE_ISA != ALPHA_ISA && THE_ISA != POWER_ISA //e.g. MIPS or Sparc tc->setNextNPC(prog_entry + (2 * sizeof(MachInst))); #endif @@ -645,6 +649,12 @@ LiveProcess::syscall(int64_t callnum, ThreadContext *tc) desc->doSyscall(callnum, this, tc); } +IntReg +LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) +{ + return getSyscallArg(tc, i); +} + LiveProcess * LiveProcess::create(LiveProcessParams * params) { @@ -754,6 +764,20 @@ LiveProcess::create(LiveProcessParams * params) default: fatal("Unknown/unsupported operating system."); } +#elif THE_ISA == POWER_ISA + if (objFile->getArch() != ObjectFile::Power) + fatal("Object file architecture does not match compiled ISA (Power)."); + switch (objFile->getOpSys()) { + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through + case ObjectFile::Linux: + process = new PowerLinuxProcess(params, objFile); + break; + + default: + fatal("Unknown/unsupported operating system."); + } #else #error "THE_ISA not set" #endif diff --git a/src/sim/process.hh b/src/sim/process.hh index 05a48071a..ab9d64cf3 100644 --- a/src/sim/process.hh +++ b/src/sim/process.hh @@ -47,9 +47,11 @@ #include "arch/registers.hh" #include "base/statistics.hh" #include "base/types.hh" +#include "config/the_isa.hh" #include "sim/sim_object.hh" #include "sim/syscallreturn.hh" +class BaseRemoteGDB; class GDBListener; class PageTable; class ProcessParams; @@ -58,10 +60,6 @@ class SyscallDesc; class System; class ThreadContext; class TranslatingPort; -namespace TheISA -{ - class RemoteGDB; -} template<class IntType> struct AuxVector @@ -94,7 +92,7 @@ class Process : public SimObject std::vector<int> contextIds; // remote gdb objects - std::vector<TheISA::RemoteGDB *> remoteGDB; + std::vector<BaseRemoteGDB *> remoteGDB; std::vector<GDBListener *> gdbListen; bool breakpoint(); @@ -327,7 +325,9 @@ class LiveProcess : public Process std::string getcwd() const { return cwd; } virtual void syscall(int64_t callnum, ThreadContext *tc); - virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int i) = 0; + + virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i) = 0; + virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); virtual void setSyscallArg(ThreadContext *tc, int i, TheISA::IntReg val) = 0; virtual void setSyscallReturn(ThreadContext *tc, diff --git a/src/sim/pseudo_inst.cc b/src/sim/pseudo_inst.cc index 6182150d4..cf063818b 100644 --- a/src/sim/pseudo_inst.cc +++ b/src/sim/pseudo_inst.cc @@ -35,10 +35,10 @@ #include <fstream> #include <string> -#include "config/full_system.hh" - #include "arch/vtophys.hh" #include "base/debug.hh" +#include "config/full_system.hh" +#include "config/the_isa.hh" #include "cpu/base.hh" #include "cpu/thread_context.hh" #include "cpu/quiesce_event.hh" diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index 811bdb73a..4726decc5 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -32,18 +32,19 @@ #include <fcntl.h> #include <unistd.h> -#include <string> +#include <cstdio> #include <iostream> +#include <string> #include "sim/syscall_emul.hh" #include "base/chunk_generator.hh" #include "base/trace.hh" +#include "config/the_isa.hh" #include "cpu/thread_context.hh" #include "cpu/base.hh" #include "mem/page_table.hh" #include "sim/process.hh" #include "sim/system.hh" - #include "sim/sim_exit.hh" using namespace std; @@ -52,11 +53,16 @@ using namespace TheISA; void SyscallDesc::doSyscall(int callnum, LiveProcess *process, ThreadContext *tc) { +#if TRACING_ON + int index = 0; +#endif DPRINTFR(SyscallVerbose, "%d: %s: syscall %s called w/arguments %d,%d,%d,%d\n", curTick, tc->getCpuPtr()->name(), name, - process->getSyscallArg(tc, 0), process->getSyscallArg(tc, 1), - process->getSyscallArg(tc, 2), process->getSyscallArg(tc, 3)); + process->getSyscallArg(tc, index), + process->getSyscallArg(tc, index), + process->getSyscallArg(tc, index), + process->getSyscallArg(tc, index)); SyscallReturn retval = (*funcPtr)(this, callnum, process, tc); @@ -82,8 +88,9 @@ SyscallReturn ignoreFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { + int index = 0; warn("ignoring syscall %s(%d, %d, ...)", desc->name, - process->getSyscallArg(tc, 0), process->getSyscallArg(tc, 1)); + process->getSyscallArg(tc, index), process->getSyscallArg(tc, index)); return 0; } @@ -95,8 +102,9 @@ exitFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { if (process->system->numRunningContexts() == 1) { // Last running context... exit simulator + int index = 0; exitSimLoop("target called exit()", - process->getSyscallArg(tc, 0) & 0xff); + process->getSyscallArg(tc, index) & 0xff); } else { // other running threads... just halt this one tc->halt(); @@ -112,8 +120,9 @@ exitGroupFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { // really should just halt all thread contexts belonging to this // process in case there's another process running... + int index = 0; exitSimLoop("target called exit()", - process->getSyscallArg(tc, 0) & 0xff); + process->getSyscallArg(tc, index) & 0xff); return 1; } @@ -130,7 +139,8 @@ SyscallReturn brkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { // change brk addr to first arg - Addr new_brk = p->getSyscallArg(tc, 0); + int index = 0; + Addr new_brk = p->getSyscallArg(tc, index); // in Linux at least, brk(0) returns the current break value // (note that the syscall and the glibc function have different behavior) @@ -144,6 +154,24 @@ brkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) if (!p->pTable->translate(gen.addr())) p->pTable->allocate(roundDown(gen.addr(), VMPageSize), VMPageSize); + + // if the address is already there, zero it out + else { + uint8_t zero = 0; + TranslatingPort *tp = tc->getMemPort(); + + // split non-page aligned accesses + Addr next_page = roundUp(gen.addr(), VMPageSize); + uint32_t size_needed = next_page - gen.addr(); + tp->memsetBlob(gen.addr(), zero, size_needed); + if (gen.addr() + VMPageSize > next_page && + next_page < new_brk && + p->pTable->translate(next_page)) + { + size_needed = VMPageSize - size_needed; + tp->memsetBlob(next_page, zero, size_needed); + } + } } } @@ -156,7 +184,8 @@ brkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn closeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int target_fd = p->getSyscallArg(tc, 0); + int index = 0; + int target_fd = p->getSyscallArg(tc, index); int status = close(p->sim_fd(target_fd)); if (status >= 0) p->free_fd(target_fd); @@ -167,9 +196,11 @@ closeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn readFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(p->getSyscallArg(tc, 0)); - int nbytes = p->getSyscallArg(tc, 2); - BufferArg bufArg(p->getSyscallArg(tc, 1), nbytes); + int index = 0; + int fd = p->sim_fd(p->getSyscallArg(tc, index)); + Addr bufPtr = p->getSyscallArg(tc, index); + int nbytes = p->getSyscallArg(tc, index); + BufferArg bufArg(bufPtr, nbytes); int bytes_read = read(fd, bufArg.bufferPtr(), nbytes); @@ -182,9 +213,11 @@ readFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn writeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(p->getSyscallArg(tc, 0)); - int nbytes = p->getSyscallArg(tc, 2); - BufferArg bufArg(p->getSyscallArg(tc, 1), nbytes); + int index = 0; + int fd = p->sim_fd(p->getSyscallArg(tc, index)); + Addr bufPtr = p->getSyscallArg(tc, index); + int nbytes = p->getSyscallArg(tc, index); + BufferArg bufArg(bufPtr, nbytes); bufArg.copyIn(tc->getMemPort()); @@ -199,9 +232,10 @@ writeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn lseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(p->getSyscallArg(tc, 0)); - uint64_t offs = p->getSyscallArg(tc, 1); - int whence = p->getSyscallArg(tc, 2); + int index = 0; + int fd = p->sim_fd(p->getSyscallArg(tc, index)); + uint64_t offs = p->getSyscallArg(tc, index); + int whence = p->getSyscallArg(tc, index); off_t result = lseek(fd, offs, whence); @@ -212,11 +246,12 @@ lseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn _llseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(p->getSyscallArg(tc, 0)); - uint64_t offset_high = p->getSyscallArg(tc, 1); - uint32_t offset_low = p->getSyscallArg(tc, 2); - Addr result_ptr = p->getSyscallArg(tc, 3); - int whence = p->getSyscallArg(tc, 4); + int index = 0; + int fd = p->sim_fd(p->getSyscallArg(tc, index)); + uint64_t offset_high = p->getSyscallArg(tc, index); + uint32_t offset_low = p->getSyscallArg(tc, index); + Addr result_ptr = p->getSyscallArg(tc, index); + int whence = p->getSyscallArg(tc, index); uint64_t offset = (offset_high << 32) | offset_low; @@ -255,8 +290,10 @@ const char *hostname = "m5.eecs.umich.edu"; SyscallReturn gethostnameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int name_len = p->getSyscallArg(tc, 1); - BufferArg name(p->getSyscallArg(tc, 0), name_len); + int index = 0; + Addr bufPtr = p->getSyscallArg(tc, index); + int name_len = p->getSyscallArg(tc, index); + BufferArg name(bufPtr, name_len); strncpy((char *)name.bufferPtr(), hostname, name_len); @@ -269,8 +306,10 @@ SyscallReturn getcwdFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { int result = 0; - unsigned long size = p->getSyscallArg(tc, 1); - BufferArg buf(p->getSyscallArg(tc, 0), size); + int index = 0; + Addr bufPtr = p->getSyscallArg(tc, index); + unsigned long size = p->getSyscallArg(tc, index); + BufferArg buf(bufPtr, size); // Is current working directory defined? string cwd = p->getcwd(); @@ -302,14 +341,17 @@ readlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, index))) return (TheISA::IntReg)-EFAULT; // Adjust path for current working directory path = p->fullPath(path); - size_t bufsiz = p->getSyscallArg(tc, 2); - BufferArg buf(p->getSyscallArg(tc, 1), bufsiz); + Addr bufPtr = p->getSyscallArg(tc, index); + size_t bufsiz = p->getSyscallArg(tc, index); + + BufferArg buf(bufPtr, bufsiz); int result = readlink(path.c_str(), (char *)buf.bufferPtr(), bufsiz); @@ -323,7 +365,8 @@ unlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, index))) return (TheISA::IntReg)-EFAULT; // Adjust path for current working directory @@ -339,13 +382,14 @@ mkdirFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, index))) return (TheISA::IntReg)-EFAULT; // Adjust path for current working directory path = p->fullPath(path); - mode_t mode = p->getSyscallArg(tc, 1); + mode_t mode = p->getSyscallArg(tc, index); int result = mkdir(path.c_str(), mode); return (result == -1) ? -errno : result; @@ -356,12 +400,13 @@ renameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string old_name; - if (!tc->getMemPort()->tryReadString(old_name, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(old_name, p->getSyscallArg(tc, index))) return -EFAULT; string new_name; - if (!tc->getMemPort()->tryReadString(new_name, p->getSyscallArg(tc, 1))) + if (!tc->getMemPort()->tryReadString(new_name, p->getSyscallArg(tc, index))) return -EFAULT; // Adjust path for current working directory @@ -377,10 +422,11 @@ truncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, index))) return -EFAULT; - off_t length = p->getSyscallArg(tc, 1); + off_t length = p->getSyscallArg(tc, index); // Adjust path for current working directory path = p->fullPath(path); @@ -393,18 +439,62 @@ SyscallReturn ftruncateFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(process->getSyscallArg(tc, 0)); + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); if (fd < 0) return -EBADF; - off_t length = process->getSyscallArg(tc, 1); + off_t length = process->getSyscallArg(tc, index); int result = ftruncate(fd, length); return (result == -1) ? -errno : result; } SyscallReturn +truncate64Func(SyscallDesc *desc, int num, + LiveProcess *process, ThreadContext *tc) +{ + int index = 0; + string path; + + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, index))) + return -EFAULT; + + int64_t length = process->getSyscallArg(tc, index, 64); + + // Adjust path for current working directory + path = process->fullPath(path); + +#if NO_STAT64 + int result = truncate(path.c_str(), length); +#else + int result = truncate64(path.c_str(), length); +#endif + return (result == -1) ? -errno : result; +} + +SyscallReturn +ftruncate64Func(SyscallDesc *desc, int num, + LiveProcess *process, ThreadContext *tc) +{ + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); + + if (fd < 0) + return -EBADF; + + int64_t length = process->getSyscallArg(tc, index, 64); + +#if NO_STAT64 + int result = ftruncate(fd, length); +#else + int result = ftruncate64(fd, length); +#endif + return (result == -1) ? -errno : result; +} + +SyscallReturn umaskFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { // Letting the simulated program change the simulator's umask seems like @@ -420,13 +510,14 @@ chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, index))) return -EFAULT; /* XXX endianess */ - uint32_t owner = p->getSyscallArg(tc, 1); + uint32_t owner = p->getSyscallArg(tc, index); uid_t hostOwner = owner; - uint32_t group = p->getSyscallArg(tc, 2); + uint32_t group = p->getSyscallArg(tc, index); gid_t hostGroup = group; // Adjust path for current working directory @@ -439,15 +530,16 @@ chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn fchownFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(process->getSyscallArg(tc, 0)); + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); if (fd < 0) return -EBADF; /* XXX endianess */ - uint32_t owner = process->getSyscallArg(tc, 1); + uint32_t owner = process->getSyscallArg(tc, index); uid_t hostOwner = owner; - uint32_t group = process->getSyscallArg(tc, 2); + uint32_t group = process->getSyscallArg(tc, index); gid_t hostGroup = group; int result = fchown(fd, hostOwner, hostGroup); @@ -458,11 +550,12 @@ fchownFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) SyscallReturn dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(process->getSyscallArg(tc, 0)); + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); if (fd < 0) return -EBADF; - Process::FdMap *fdo = process->sim_fd_obj(process->getSyscallArg(tc, 0)); + Process::FdMap *fdo = process->sim_fd_obj(fd); int result = dup(fd); return (result == -1) ? -errno : @@ -474,12 +567,13 @@ SyscallReturn fcntlFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); + int index = 0; + int fd = process->getSyscallArg(tc, index); if (fd < 0 || process->sim_fd(fd) < 0) return -EBADF; - int cmd = process->getSyscallArg(tc, 1); + int cmd = process->getSyscallArg(tc, index); switch (cmd) { case 0: // F_DUPFD // if we really wanted to support this, we'd need to do it @@ -516,12 +610,13 @@ SyscallReturn fcntl64Func(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); + int index = 0; + int fd = process->getSyscallArg(tc, index); if (fd < 0 || process->sim_fd(fd) < 0) return -EBADF; - int cmd = process->getSyscallArg(tc, 1); + int cmd = process->getSyscallArg(tc, index); switch (cmd) { case 33: //F_GETLK64 warn("fcntl64(%d, F_GETLK64) not supported, error returned\n", fd); @@ -605,7 +700,8 @@ setuidFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { // can't fathom why a benchmark would call this. - warn("Ignoring call to setuid(%d)\n", process->getSyscallArg(tc, 0)); + int index = 0; + warn("Ignoring call to setuid(%d)\n", process->getSyscallArg(tc, index)); return 0; } @@ -661,17 +757,20 @@ SyscallReturn cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { + int index = 0; + IntReg flags = process->getSyscallArg(tc, index); + IntReg newStack = process->getSyscallArg(tc, index); + DPRINTF(SyscallVerbose, "In sys_clone:\n"); - DPRINTF(SyscallVerbose, " Flags=%llx\n", process->getSyscallArg(tc, 0)); - DPRINTF(SyscallVerbose, " Child stack=%llx\n", - process->getSyscallArg(tc, 1)); + DPRINTF(SyscallVerbose, " Flags=%llx\n", flags); + DPRINTF(SyscallVerbose, " Child stack=%llx\n", newStack); - if (process->getSyscallArg(tc, 0) != 0x10f00) { + if (flags != 0x10f00) { warn("This sys_clone implementation assumes flags " "CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD " "(0x10f00), and may not work correctly with given flags " - "0x%llx\n", process->getSyscallArg(tc, 0)); + "0x%llx\n", flags); } ThreadContext* ctc; // child thread context @@ -704,7 +803,7 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process, #endif // Set up stack register - ctc->setIntReg(TheISA::StackPointerReg, process->getSyscallArg(tc, 1)); + ctc->setIntReg(TheISA::StackPointerReg, newStack); // Set up syscall return values in parent and child ctc->setIntReg(ReturnValueReg, 0); // return value, child diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index 5f2ebd428..66e800183 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -55,10 +55,12 @@ #include "base/misc.hh" #include "base/trace.hh" #include "base/types.hh" +#include "config/the_isa.hh" #include "cpu/base.hh" #include "cpu/thread_context.hh" #include "mem/translating_port.hh" #include "mem/page_table.hh" +#include "sim/system.hh" #include "sim/process.hh" /// @@ -258,6 +260,15 @@ SyscallReturn ftruncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); +/// Target truncate64() handler. +SyscallReturn truncate64Func(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + +/// Target ftruncate64() handler. +SyscallReturn ftruncate64Func(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + + /// Target umask() handler. SyscallReturn umaskFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); @@ -462,7 +473,7 @@ copyOutStat64Buf(TranslatingPort * mem, Addr addr, { typedef TypedBufferArg<typename OS::tgt_stat64> tgt_stat_buf; tgt_stat_buf tgt(addr); - convertStatBuf<tgt_stat_buf, hst_stat64>(tgt, host, fakeTTY); + convertStat64Buf<tgt_stat_buf, hst_stat64>(tgt, host, fakeTTY); tgt.copyOut(mem); } @@ -474,8 +485,9 @@ SyscallReturn ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); - unsigned req = process->getSyscallArg(tc, 1); + int index = 0; + int fd = process->getSyscallArg(tc, index); + unsigned req = process->getSyscallArg(tc, index); DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req); @@ -493,6 +505,7 @@ ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process, case OS::TIOCGETC_: case OS::TIOCGETS_: case OS::TIOCGETA_: + case OS::TCSETAW_: return -ENOTTY; default: @@ -509,7 +522,9 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) return -EFAULT; if (path == "/dev/sysdev0") { @@ -519,8 +534,8 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return -ENOENT; } - int tgtFlags = process->getSyscallArg(tc, 1); - int mode = process->getSyscallArg(tc, 2); + int tgtFlags = process->getSyscallArg(tc, index); + int mode = process->getSyscallArg(tc, index); int hostFlags = 0; // translate open flags @@ -558,6 +573,24 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, } +/// Target sysinfo() handler. +template <class OS> +SyscallReturn +sysinfoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, + ThreadContext *tc) +{ + + int index = 0; + TypedBufferArg<typename OS::tgt_sysinfo> + sysinfo(process->getSyscallArg(tc, index)); + + sysinfo->uptime=seconds_since_epoch; + sysinfo->totalram=process->system->memSize(); + + sysinfo.copyOut(tc->getMemPort()); + + return 0; +} /// Target chmod() handler. template <class OS> @@ -567,10 +600,13 @@ chmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { return -EFAULT; + } - uint32_t mode = process->getSyscallArg(tc, 1); + uint32_t mode = process->getSyscallArg(tc, index); mode_t hostMode = 0; // XXX translate mode flags via OS::something??? @@ -594,13 +630,14 @@ SyscallReturn fchmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); + int index = 0; + int fd = process->getSyscallArg(tc, index); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; } - uint32_t mode = process->getSyscallArg(tc, 1); + uint32_t mode = process->getSyscallArg(tc, index); mode_t hostMode = 0; // XXX translate mode flags via OS::someting??? @@ -619,10 +656,11 @@ template <class OS> SyscallReturn mremapFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - Addr start = process->getSyscallArg(tc, 0); - uint64_t old_length = process->getSyscallArg(tc, 1); - uint64_t new_length = process->getSyscallArg(tc, 2); - uint64_t flags = process->getSyscallArg(tc, 3); + int index = 0; + Addr start = process->getSyscallArg(tc, index); + uint64_t old_length = process->getSyscallArg(tc, index); + uint64_t new_length = process->getSyscallArg(tc, index); + uint64_t flags = process->getSyscallArg(tc, index); if ((start % TheISA::VMPageSize != 0) || (new_length % TheISA::VMPageSize != 0)) { @@ -668,8 +706,12 @@ statFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) - return -EFAULT; + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { + return -EFAULT; + } + Addr bufPtr = process->getSyscallArg(tc, index); // Adjust path for current working directory path = process->fullPath(path); @@ -680,8 +722,7 @@ statFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf); + copyOutStatBuf<OS>(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -695,8 +736,11 @@ stat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) return -EFAULT; + Addr bufPtr = process->getSyscallArg(tc, index); // Adjust path for current working directory path = process->fullPath(path); @@ -712,8 +756,7 @@ stat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf); + copyOutStat64Buf<OS>(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -725,7 +768,9 @@ SyscallReturn fstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); + int index = 0; + int fd = process->getSyscallArg(tc, index); + Addr bufPtr = process->getSyscallArg(tc, index); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; @@ -742,8 +787,7 @@ fstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf, (fd == 1)); + copyOutStat64Buf<OS>(tc->getMemPort(), bufPtr, &hostBuf, (fd == 1)); return 0; } @@ -757,8 +801,12 @@ lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) - return -EFAULT; + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { + return -EFAULT; + } + Addr bufPtr = process->getSyscallArg(tc, index); // Adjust path for current working directory path = process->fullPath(path); @@ -769,8 +817,7 @@ lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf); + copyOutStatBuf<OS>(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -783,8 +830,12 @@ lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) - return -EFAULT; + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { + return -EFAULT; + } + Addr bufPtr = process->getSyscallArg(tc, index); // Adjust path for current working directory path = process->fullPath(path); @@ -800,8 +851,7 @@ lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf); + copyOutStat64Buf<OS>(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -812,7 +862,9 @@ SyscallReturn fstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(process->getSyscallArg(tc, 0)); + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); + Addr bufPtr = process->getSyscallArg(tc, index); DPRINTF(SyscallVerbose, "fstat(%d, ...)\n", fd); @@ -825,8 +877,7 @@ fstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf, (fd == 1)); + copyOutStatBuf<OS>(tc->getMemPort(), bufPtr, &hostBuf, (fd == 1)); return 0; } @@ -840,8 +891,12 @@ statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) - return -EFAULT; + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { + return -EFAULT; + } + Addr bufPtr = process->getSyscallArg(tc, index); // Adjust path for current working directory path = process->fullPath(path); @@ -852,8 +907,7 @@ statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - OS::copyOutStatfsBuf(tc->getMemPort(), - (Addr)(process->getSyscallArg(tc, 1)), &hostBuf); + OS::copyOutStatfsBuf(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -865,7 +919,9 @@ SyscallReturn fstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(process->getSyscallArg(tc, 0)); + int index = 0; + int fd = process->sim_fd(process->getSyscallArg(tc, index)); + Addr bufPtr = process->getSyscallArg(tc, index); if (fd < 0) return -EBADF; @@ -876,8 +932,7 @@ fstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - OS::copyOutStatfsBuf(tc->getMemPort(), process->getSyscallArg(tc, 1), - &hostBuf); + OS::copyOutStatfsBuf(tc->getMemPort(), bufPtr, &hostBuf); return 0; } @@ -889,15 +944,16 @@ SyscallReturn writevFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->getSyscallArg(tc, 0); + int index = 0; + int fd = process->getSyscallArg(tc, index); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; } TranslatingPort *p = tc->getMemPort(); - uint64_t tiov_base = process->getSyscallArg(tc, 1); - size_t count = process->getSyscallArg(tc, 2); + uint64_t tiov_base = process->getSyscallArg(tc, index); + size_t count = process->getSyscallArg(tc, index); struct iovec hiov[count]; for (size_t i = 0; i < count; ++i) { typename OS::tgt_iovec tiov; @@ -938,12 +994,13 @@ template <class OS> SyscallReturn mmapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - Addr start = p->getSyscallArg(tc, 0); - uint64_t length = p->getSyscallArg(tc, 1); - // int prot = p->getSyscallArg(tc, 2); - int flags = p->getSyscallArg(tc, 3); - // int fd = p->sim_fd(p->getSyscallArg(tc, 4)); - // int offset = p->getSyscallArg(tc, 5); + int index = 0; + Addr start = p->getSyscallArg(tc, index); + uint64_t length = p->getSyscallArg(tc, index); + index++; // int prot = p->getSyscallArg(tc, index); + int flags = p->getSyscallArg(tc, index); + int fd = p->sim_fd(p->getSyscallArg(tc, index)); + // int offset = p->getSyscallArg(tc, index); if ((start % TheISA::VMPageSize) != 0 || @@ -960,13 +1017,18 @@ mmapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) } // pick next address from our "mmap region" - start = p->mmap_end; + if (OS::mmapGrowsDown()) { + start = p->mmap_end - length; + p->mmap_end = start; + } else { + start = p->mmap_end; + p->mmap_end += length; + } p->pTable->allocate(start, length); - p->mmap_end += length; if (!(flags & OS::TGT_MAP_ANONYMOUS)) { warn("allowing mmap of file @ fd %d. " - "This will break if not /dev/zero.", p->getSyscallArg(tc, 4)); + "This will break if not /dev/zero.", fd); } return start; @@ -978,8 +1040,9 @@ SyscallReturn getrlimitFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned resource = process->getSyscallArg(tc, 0); - TypedBufferArg<typename OS::rlimit> rlp(process->getSyscallArg(tc, 1)); + int index = 0; + unsigned resource = process->getSyscallArg(tc, index); + TypedBufferArg<typename OS::rlimit> rlp(process->getSyscallArg(tc, index)); switch (resource) { case OS::TGT_RLIMIT_STACK: @@ -1013,7 +1076,8 @@ SyscallReturn gettimeofdayFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<typename OS::timeval> tp(process->getSyscallArg(tc, 0)); + int index = 0; + TypedBufferArg<typename OS::timeval> tp(process->getSyscallArg(tc, index)); getElapsedTime(tp->tv_sec, tp->tv_usec); tp->tv_sec += seconds_since_epoch; @@ -1034,10 +1098,14 @@ utimesFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) - return -EFAULT; + int index = 0; + if (!tc->getMemPort()->tryReadString(path, + process->getSyscallArg(tc, index))) { + return -EFAULT; + } - TypedBufferArg<typename OS::timeval [2]> tp(process->getSyscallArg(tc, 1)); + TypedBufferArg<typename OS::timeval [2]> + tp(process->getSyscallArg(tc, index)); tp.copyIn(tc->getMemPort()); struct timeval hostTimeval[2]; @@ -1063,8 +1131,9 @@ SyscallReturn getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int who = process->getSyscallArg(tc, 0); // THREAD, SELF, or CHILDREN - TypedBufferArg<typename OS::rusage> rup(process->getSyscallArg(tc, 1)); + int index = 0; + int who = process->getSyscallArg(tc, index); // THREAD, SELF, or CHILDREN + TypedBufferArg<typename OS::rusage> rup(process->getSyscallArg(tc, index)); rup->ru_utime.tv_sec = 0; rup->ru_utime.tv_usec = 0; @@ -1108,7 +1177,52 @@ getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return 0; } +/// Target times() function. +template <class OS> +SyscallReturn +timesFunc(SyscallDesc *desc, int callnum, LiveProcess *process, + ThreadContext *tc) +{ + int index = 0; + TypedBufferArg<typename OS::tms> bufp(process->getSyscallArg(tc, index)); + + // Fill in the time structure (in clocks) + int64_t clocks = curTick * OS::M5_SC_CLK_TCK / Clock::Int::s; + bufp->tms_utime = clocks; + bufp->tms_stime = 0; + bufp->tms_cutime = 0; + bufp->tms_cstime = 0; + // Convert to host endianness + bufp->tms_utime = htog(bufp->tms_utime); + + // Write back + bufp.copyOut(tc->getMemPort()); + + // Return clock ticks since system boot + return clocks; +} + +/// Target time() function. +template <class OS> +SyscallReturn +timeFunc(SyscallDesc *desc, int callnum, LiveProcess *process, + ThreadContext *tc) +{ + typename OS::time_t sec, usec; + getElapsedTime(sec, usec); + sec += seconds_since_epoch; + + int index = 0; + Addr taddr = (Addr)process->getSyscallArg(tc, index); + if(taddr != 0) { + typename OS::time_t t = sec; + t = htog(t); + TranslatingPort *p = tc->getMemPort(); + p->writeBlob(taddr, (uint8_t*)&t, (int)sizeof(typename OS::time_t)); + } + return sec; +} #endif // __SIM_SYSCALL_EMUL_HH__ diff --git a/src/sim/system.cc b/src/sim/system.cc index f10167bba..da77f1995 100644 --- a/src/sim/system.cc +++ b/src/sim/system.cc @@ -38,11 +38,14 @@ #include "base/loader/symtab.hh" #include "base/trace.hh" #include "cpu/thread_context.hh" +#include "config/full_system.hh" +#include "config/the_isa.hh" #include "mem/mem_object.hh" #include "mem/physical.hh" #include "sim/byteswap.hh" #include "sim/system.hh" #include "sim/debug.hh" + #if FULL_SYSTEM #include "arch/vtophys.hh" #include "kern/kernel_stats.hh" diff --git a/src/sim/system.hh b/src/sim/system.hh index aa89866bd..eabbc8351 100644 --- a/src/sim/system.hh +++ b/src/sim/system.hh @@ -45,6 +45,7 @@ #include "mem/port.hh" #include "params/System.hh" #include "sim/sim_object.hh" + #if FULL_SYSTEM #include "kern/system_events.hh" #include "mem/vport.hh" @@ -59,10 +60,7 @@ class PhysicalMemory; class Platform; #endif class GDBListener; -namespace TheISA -{ - class RemoteGDB; -} +class BaseRemoteGDB; class System : public SimObject { @@ -187,7 +185,7 @@ class System : public SimObject #endif public: - std::vector<TheISA::RemoteGDB *> remoteGDB; + std::vector<BaseRemoteGDB *> remoteGDB; std::vector<GDBListener *> gdbListen; bool breakpoint(); |