381 lines
13 KiB
C++
381 lines
13 KiB
C++
/*
|
|
* Copyright (c) 2003-2004 The Regents of The University of Michigan
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: 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 holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "arch/sparc/isa_traits.hh"
|
|
#include "arch/sparc/process.hh"
|
|
#include "arch/sparc/linux/process.hh"
|
|
#include "base/loader/object_file.hh"
|
|
#include "base/misc.hh"
|
|
#include "cpu/exec_context.hh"
|
|
#include "mem/page_table.hh"
|
|
#include "mem/translating_port.hh"
|
|
#include "sim/builder.hh"
|
|
#include "sim/system.hh"
|
|
|
|
using namespace std;
|
|
using namespace SparcISA;
|
|
|
|
SparcLiveProcess *
|
|
SparcLiveProcess::create(const std::string &nm, System *system, int stdin_fd,
|
|
int stdout_fd, int stderr_fd, std::string executable,
|
|
std::vector<std::string> &argv, std::vector<std::string> &envp)
|
|
{
|
|
SparcLiveProcess *process = NULL;
|
|
|
|
ObjectFile *objFile = createObjectFile(executable);
|
|
if (objFile == NULL) {
|
|
fatal("Can't load object file %s", executable);
|
|
}
|
|
|
|
|
|
if (objFile->getArch() != ObjectFile::SPARC)
|
|
fatal("Object file with arch %x does not match architecture %x.", objFile->getArch(), ObjectFile::SPARC);
|
|
switch (objFile->getOpSys()) {
|
|
case ObjectFile::Linux:
|
|
process = new SparcLinuxProcess(nm, objFile, system,
|
|
stdin_fd, stdout_fd, stderr_fd,
|
|
argv, envp);
|
|
break;
|
|
|
|
case ObjectFile::Solaris:
|
|
default:
|
|
fatal("Unknown/unsupported operating system.");
|
|
}
|
|
|
|
if (process == NULL)
|
|
fatal("Unknown error creating process object.");
|
|
return process;
|
|
}
|
|
|
|
SparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
|
|
System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
|
|
std::vector<std::string> &argv, std::vector<std::string> &envp)
|
|
: LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
|
|
argv, envp)
|
|
{
|
|
|
|
// XXX all the below need to be updated for SPARC - Ali
|
|
brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
|
|
brk_point = roundUp(brk_point, VMPageSize);
|
|
|
|
// Set up stack. On SPARC Linux, stack goes from the top of memory
|
|
// downward, less the hole for the kernel address space.
|
|
stack_base = ((Addr)0x80000000000ULL);
|
|
|
|
// Set up region for mmaps. Tru64 seems to start just above 0 and
|
|
// grow up from there.
|
|
mmap_start = mmap_end = 0x800000;
|
|
|
|
// Set pointer for next thread stack. Reserve 8M for main stack.
|
|
next_thread_stack_base = stack_base - (8 * 1024 * 1024);
|
|
}
|
|
|
|
void
|
|
SparcLiveProcess::startup()
|
|
{
|
|
argsInit(MachineBytes, VMPageSize);
|
|
|
|
//From the SPARC ABI
|
|
|
|
//The process runs in user mode
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE_PRIV, 0);
|
|
//Interrupts are enabled
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE_IE, 1);
|
|
//Round to nearest
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_RD, 0);
|
|
//Floating point traps are not enabled
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_TEM, 0);
|
|
//Turn non standard mode off
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_NS, 0);
|
|
//The floating point queue is empty
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_QNE, 0);
|
|
//There are no accrued eexecContext[0]eptions
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_AEXC, 0);
|
|
//There are no current eexecContext[0]eptions
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_FSR_CEXC, 0);
|
|
|
|
/*
|
|
* Register window management registers
|
|
*/
|
|
|
|
//No windows contain info from other programs
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_OTHERWIN, 0);
|
|
//There are no windows to pop
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_CANRESTORE, 0);
|
|
//All windows are available to save into
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_CANSAVE, NWindows - 2);
|
|
//All windows are "clean"
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_CLEANWIN, NWindows);
|
|
//Start with register window 0
|
|
execContexts[0]->setMiscRegWithEffect(MISCREG_CWP, 0);
|
|
}
|
|
|
|
m5_auxv_t buildAuxVect(int64_t type, int64_t val)
|
|
{
|
|
m5_auxv_t result;
|
|
result.a_type = TheISA::htog(type);
|
|
result.a_val = TheISA::htog(val);
|
|
return result;
|
|
}
|
|
|
|
void
|
|
SparcLiveProcess::argsInit(int intSize, int pageSize)
|
|
{
|
|
Process::startup();
|
|
|
|
Addr alignmentMask = ~(intSize - 1);
|
|
|
|
// load object file into target memory
|
|
objFile->loadSections(initVirtMem);
|
|
|
|
//These are the auxilliary vector types
|
|
enum auxTypes
|
|
{
|
|
SPARC_AT_HWCAP = 16,
|
|
SPARC_AT_PAGESZ = 6,
|
|
SPARC_AT_CLKTCK = 17,
|
|
SPARC_AT_PHDR = 3,
|
|
SPARC_AT_PHENT = 4,
|
|
SPARC_AT_PHNUM = 5,
|
|
SPARC_AT_BASE = 7,
|
|
SPARC_AT_FLAGS = 8,
|
|
SPARC_AT_ENTRY = 9,
|
|
SPARC_AT_UID = 11,
|
|
SPARC_AT_EUID = 12,
|
|
SPARC_AT_GID = 13,
|
|
SPARC_AT_EGID = 14
|
|
};
|
|
|
|
enum hardwareCaps
|
|
{
|
|
M5_HWCAP_SPARC_FLUSH = 1,
|
|
M5_HWCAP_SPARC_STBAR = 2,
|
|
M5_HWCAP_SPARC_SWAP = 4,
|
|
M5_HWCAP_SPARC_MULDIV = 8,
|
|
M5_HWCAP_SPARC_V9 = 16,
|
|
//This one should technically only be set
|
|
//if there is a cheetah or cheetah_plus tlb,
|
|
//but we'll use it all the time
|
|
M5_HWCAP_SPARC_ULTRA3 = 32
|
|
};
|
|
|
|
const int64_t hwcap =
|
|
M5_HWCAP_SPARC_FLUSH |
|
|
M5_HWCAP_SPARC_STBAR |
|
|
M5_HWCAP_SPARC_SWAP |
|
|
M5_HWCAP_SPARC_MULDIV |
|
|
M5_HWCAP_SPARC_V9 |
|
|
M5_HWCAP_SPARC_ULTRA3;
|
|
|
|
//Setup the auxilliary vectors. These will already have
|
|
//endian conversion.
|
|
auxv.push_back(buildAuxVect(SPARC_AT_EGID, 100));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_GID, 100));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_EUID, 100));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_UID, 100));
|
|
//This would work, but the entry point is a protected member
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_ENTRY, objFile->entry));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_FLAGS, 0));
|
|
//This is the address of the elf "interpreter", which I don't
|
|
//think we currently set up. It should be set to 0 (I think)
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_BASE, 0));
|
|
//This is the number of headers which were in the original elf
|
|
//file. This information isn't avaibale by this point.
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_PHNUM, 3));
|
|
//This is the size of a program header entry. This isn't easy
|
|
//to compute here.
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_PHENT, blah));
|
|
//This is should be set to load_addr (whatever that is) +
|
|
//e_phoff. I think it's a pointer to the program headers.
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_PHDR, blah));
|
|
//This should be easy to get right, but I won't set it for now
|
|
//auxv.push_back(buildAuxVect(SPARC_AT_CLKTCK, blah));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_PAGESZ, SparcISA::VMPageSize));
|
|
auxv.push_back(buildAuxVect(SPARC_AT_HWCAP, hwcap));
|
|
|
|
//Figure out how big the initial stack needs to be
|
|
|
|
//Each auxilliary vector is two 8 byte words
|
|
int aux_data_size = 2 * intSize * auxv.size();
|
|
int env_data_size = 0;
|
|
for (int i = 0; i < envp.size(); ++i) {
|
|
env_data_size += envp[i].size() + 1;
|
|
}
|
|
int arg_data_size = 0;
|
|
for (int i = 0; i < argv.size(); ++i) {
|
|
arg_data_size += argv[i].size() + 1;
|
|
}
|
|
|
|
int aux_array_size = intSize * 2 * (auxv.size() + 1);
|
|
|
|
int argv_array_size = intSize * (argv.size() + 1);
|
|
int envp_array_size = intSize * (envp.size() + 1);
|
|
|
|
int argc_size = intSize;
|
|
int window_save_size = intSize * 16;
|
|
|
|
int info_block_size =
|
|
(aux_data_size +
|
|
env_data_size +
|
|
arg_data_size +
|
|
~alignmentMask) & alignmentMask;
|
|
|
|
int info_block_padding =
|
|
info_block_size -
|
|
aux_data_size -
|
|
env_data_size -
|
|
arg_data_size;
|
|
|
|
int space_needed =
|
|
info_block_size +
|
|
aux_array_size +
|
|
envp_array_size +
|
|
argv_array_size +
|
|
argc_size +
|
|
window_save_size;
|
|
|
|
stack_min = stack_base - space_needed;
|
|
stack_min &= alignmentMask;
|
|
stack_size = stack_base - stack_min;
|
|
|
|
// map memory
|
|
pTable->allocate(roundDown(stack_min, pageSize),
|
|
roundUp(stack_size, pageSize));
|
|
|
|
// map out initial stack contents
|
|
Addr aux_data_base = stack_base - aux_data_size - info_block_padding;
|
|
Addr env_data_base = aux_data_base - env_data_size;
|
|
Addr arg_data_base = env_data_base - arg_data_size;
|
|
Addr auxv_array_base = arg_data_base - aux_array_size;
|
|
Addr envp_array_base = auxv_array_base - envp_array_size;
|
|
Addr argv_array_base = envp_array_base - argv_array_size;
|
|
Addr argc_base = argv_array_base - argc_size;
|
|
Addr window_save_base = argc_base - window_save_size;
|
|
|
|
DPRINTF(Sparc, "The addresses of items on the initial stack:\n");
|
|
DPRINTF(Sparc, "0x%x - aux data\n", aux_data_base);
|
|
DPRINTF(Sparc, "0x%x - env data\n", env_data_base);
|
|
DPRINTF(Sparc, "0x%x - arg data\n", arg_data_base);
|
|
DPRINTF(Sparc, "0x%x - auxv array\n", auxv_array_base);
|
|
DPRINTF(Sparc, "0x%x - envp array\n", envp_array_base);
|
|
DPRINTF(Sparc, "0x%x - argv array\n", argv_array_base);
|
|
DPRINTF(Sparc, "0x%x - argc \n", argc_base);
|
|
DPRINTF(Sparc, "0x%x - window save\n", window_save_base);
|
|
DPRINTF(Sparc, "0x%x - stack min\n", stack_min);
|
|
|
|
// write contents to stack
|
|
uint64_t argc = argv.size();
|
|
uint64_t guestArgc = TheISA::htog(argc);
|
|
|
|
//Copy the aux stuff
|
|
for(int x = 0; x < auxv.size(); x++)
|
|
{
|
|
initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize,
|
|
(uint8_t*)&(auxv[x].a_type), intSize);
|
|
initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * intSize,
|
|
(uint8_t*)&(auxv[x].a_val), intSize);
|
|
}
|
|
//Write out the terminating zeroed auxilliary vector
|
|
const uint64_t zero = 0;
|
|
initVirtMem->writeBlob(auxv_array_base + 2 * intSize * auxv.size(),
|
|
(uint8_t*)&zero, 2 * intSize);
|
|
|
|
copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
|
|
copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
|
|
|
|
initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize);
|
|
|
|
execContexts[0]->setIntReg(ArgumentReg0, argc);
|
|
execContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
|
|
execContexts[0]->setIntReg(StackPointerReg, stack_min - StackBias);
|
|
|
|
Addr prog_entry = objFile->entryPoint();
|
|
execContexts[0]->setPC(prog_entry);
|
|
execContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
|
|
execContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
|
|
|
|
// num_processes++;
|
|
}
|
|
|
|
|
|
BEGIN_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
|
|
|
|
VectorParam<string> cmd;
|
|
Param<string> executable;
|
|
Param<string> input;
|
|
Param<string> output;
|
|
VectorParam<string> env;
|
|
SimObjectParam<System *> system;
|
|
|
|
END_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
|
|
|
|
|
|
BEGIN_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
|
|
|
|
INIT_PARAM(cmd, "command line (executable plus arguments)"),
|
|
INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
|
|
INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"),
|
|
INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"),
|
|
INIT_PARAM(env, "environment settings"),
|
|
INIT_PARAM(system, "system")
|
|
|
|
END_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
|
|
|
|
|
|
CREATE_SIM_OBJECT(SparcLiveProcess)
|
|
{
|
|
string in = input;
|
|
string out = output;
|
|
|
|
// initialize file descriptors to default: same as simulator
|
|
int stdin_fd, stdout_fd, stderr_fd;
|
|
|
|
if (in == "stdin" || in == "cin")
|
|
stdin_fd = STDIN_FILENO;
|
|
else
|
|
stdin_fd = Process::openInputFile(input);
|
|
|
|
if (out == "stdout" || out == "cout")
|
|
stdout_fd = STDOUT_FILENO;
|
|
else if (out == "stderr" || out == "cerr")
|
|
stdout_fd = STDERR_FILENO;
|
|
else
|
|
stdout_fd = Process::openOutputFile(out);
|
|
|
|
stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
|
|
|
|
return SparcLiveProcess::create(getInstanceName(), system,
|
|
stdin_fd, stdout_fd, stderr_fd,
|
|
(string)executable == "" ? cmd[0] : executable,
|
|
cmd, env);
|
|
}
|
|
|
|
|
|
REGISTER_SIM_OBJECT("SparcLiveProcess", SparcLiveProcess)
|
|
|
|
|