diff options
Diffstat (limited to 'src/arch/x86')
-rw-r--r-- | src/arch/x86/linux/process.cc | 24 | ||||
-rw-r--r-- | src/arch/x86/linux/process.hh | 7 | ||||
-rw-r--r-- | src/arch/x86/process.cc | 64 | ||||
-rw-r--r-- | src/arch/x86/process.hh | 47 | ||||
-rw-r--r-- | src/arch/x86/types.hh | 7 |
5 files changed, 125 insertions, 24 deletions
diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc index 56688fc89..c2d67eb81 100644 --- a/src/arch/x86/linux/process.cc +++ b/src/arch/x86/linux/process.cc @@ -276,10 +276,10 @@ static SyscallDesc syscallDescs64[] = { /* 53 */ SyscallDesc("socketpair", unimplementedFunc), /* 54 */ SyscallDesc("setsockopt", unimplementedFunc), /* 55 */ SyscallDesc("getsockopt", unimplementedFunc), - /* 56 */ SyscallDesc("clone", cloneFunc), + /* 56 */ SyscallDesc("clone", cloneFunc<X86Linux64>), /* 57 */ SyscallDesc("fork", unimplementedFunc), /* 58 */ SyscallDesc("vfork", unimplementedFunc), - /* 59 */ SyscallDesc("execve", unimplementedFunc), + /* 59 */ SyscallDesc("execve", execveFunc<X86Linux64>), /* 60 */ SyscallDesc("exit", exitFunc), /* 61 */ SyscallDesc("wait4", unimplementedFunc), /* 62 */ SyscallDesc("kill", unimplementedFunc), @@ -438,7 +438,7 @@ static SyscallDesc syscallDescs64[] = { /* 215 */ SyscallDesc("epoll_wait_old", unimplementedFunc), /* 216 */ SyscallDesc("remap_file_pages", unimplementedFunc), /* 217 */ SyscallDesc("getdents64", unimplementedFunc), - /* 218 */ SyscallDesc("set_tid_address", unimplementedFunc), + /* 218 */ SyscallDesc("set_tid_address", setTidAddressFunc), /* 219 */ SyscallDesc("restart_syscall", unimplementedFunc), /* 220 */ SyscallDesc("semtimedop", unimplementedFunc), /* 221 */ SyscallDesc("fadvise64", unimplementedFunc), @@ -542,6 +542,12 @@ X86_64LinuxProcess::X86_64LinuxProcess(ProcessParams * params, sizeof(syscallDescs64) / sizeof(SyscallDesc)) {} +void X86_64LinuxProcess::clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *process, TheISA::IntReg flags) +{ + X86_64Process::clone(old_tc, new_tc, (X86_64Process*)process, flags); +} + static SyscallDesc syscallDescs32[] = { /* 0 */ SyscallDesc("restart_syscall", unimplementedFunc), /* 1 */ SyscallDesc("exit", exitFunc), @@ -554,7 +560,7 @@ static SyscallDesc syscallDescs32[] = { /* 8 */ SyscallDesc("creat", unimplementedFunc), /* 9 */ SyscallDesc("link", unimplementedFunc), /* 10 */ SyscallDesc("unlink", unimplementedFunc), - /* 11 */ SyscallDesc("execve", unimplementedFunc), + /* 11 */ SyscallDesc("execve", execveFunc<X86Linux32>), /* 12 */ SyscallDesc("chdir", unimplementedFunc), /* 13 */ SyscallDesc("time", timeFunc<X86Linux32>), /* 14 */ SyscallDesc("mknod", unimplementedFunc), @@ -663,7 +669,7 @@ static SyscallDesc syscallDescs32[] = { /* 117 */ SyscallDesc("ipc", unimplementedFunc), /* 118 */ SyscallDesc("fsync", unimplementedFunc), /* 119 */ SyscallDesc("sigreturn", unimplementedFunc), - /* 120 */ SyscallDesc("clone", unimplementedFunc), + /* 120 */ SyscallDesc("clone", cloneFunc<X86Linux32>), /* 121 */ SyscallDesc("setdomainname", unimplementedFunc), /* 122 */ SyscallDesc("uname", unameFunc), /* 123 */ SyscallDesc("modify_ldt", unimplementedFunc), @@ -801,7 +807,7 @@ static SyscallDesc syscallDescs32[] = { /* 255 */ SyscallDesc("epoll_ctl", unimplementedFunc), /* 256 */ SyscallDesc("epoll_wait", unimplementedFunc), /* 257 */ SyscallDesc("remap_file_pages", unimplementedFunc), - /* 258 */ SyscallDesc("set_tid_address", unimplementedFunc), + /* 258 */ SyscallDesc("set_tid_address", setTidAddressFunc), /* 259 */ SyscallDesc("timer_create", unimplementedFunc), /* 260 */ SyscallDesc("timer_settime", unimplementedFunc), /* 261 */ SyscallDesc("timer_gettime", unimplementedFunc), @@ -873,3 +879,9 @@ I386LinuxProcess::I386LinuxProcess(ProcessParams * params, ObjectFile *objFile) : I386Process(params, objFile, syscallDescs32, sizeof(syscallDescs32) / sizeof(SyscallDesc)) {} + +void I386LinuxProcess::clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *process, TheISA::IntReg flags) +{ + I386Process::clone(old_tc, new_tc, (I386Process*)process, flags); +} diff --git a/src/arch/x86/linux/process.hh b/src/arch/x86/linux/process.hh index 70370960b..bafa9cc6c 100644 --- a/src/arch/x86/linux/process.hh +++ b/src/arch/x86/linux/process.hh @@ -44,6 +44,9 @@ #include "arch/x86/process.hh" #include "sim/process.hh" +struct ProcessParams; +struct ThreadContext; + namespace X86ISA { class X86_64LinuxProcess : public X86_64Process @@ -51,6 +54,8 @@ class X86_64LinuxProcess : public X86_64Process public: /// Constructor. X86_64LinuxProcess(ProcessParams * params, ObjectFile *objFile); + void clone(ThreadContext *old_tc, ThreadContext *new_tc, Process *process, + TheISA::IntReg flags); }; class I386LinuxProcess : public I386Process @@ -58,6 +63,8 @@ class I386LinuxProcess : public I386Process public: /// Constructor. I386LinuxProcess(ProcessParams * params, ObjectFile *objFile); + void clone(ThreadContext *old_tc, ThreadContext *new_tc, Process *process, + TheISA::IntReg flags); }; } // namespace X86ISA diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc index 35ea70430..a929897ca 100644 --- a/src/arch/x86/process.cc +++ b/src/arch/x86/process.cc @@ -100,8 +100,17 @@ X86Process::X86Process(ProcessParams * params, ObjectFile *objFile, : Process(params, objFile), syscallDescs(_syscallDescs), numSyscallDescs(_numSyscallDescs) { - brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); - brk_point = roundUp(brk_point, PageBytes); + memState->brkPoint = objFile->dataBase() + objFile->dataSize() + + objFile->bssSize(); + memState->brkPoint = roundUp(memState->brkPoint, PageBytes); +} + +void X86Process::clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *p, TheISA::IntReg flags) +{ + Process::clone(old_tc, new_tc, p, flags); + X86Process *process = (X86Process*)p; + *process = *this; } X86_64Process::X86_64Process(ProcessParams *params, ObjectFile *objFile, @@ -117,10 +126,10 @@ X86_64Process::X86_64Process(ProcessParams *params, ObjectFile *objFile, // Set up stack. On X86_64 Linux, stack goes from the top of memory // downward, less the hole for the kernel address space plus one page // for undertermined purposes. - stack_base = (Addr)0x7FFFFFFFF000ULL; + memState->stackBase = (Addr)0x7FFFFFFFF000ULL; // Set pointer for next thread stack. Reserve 8M for main stack. - next_thread_stack_base = stack_base - (8 * 1024 * 1024); + memState->nextThreadStackBase = memState->stackBase - (8 * 1024 * 1024); // "mmap_base" is a function which defines where mmap region starts in // the process address space. @@ -130,7 +139,7 @@ X86_64Process::X86_64Process(ProcessParams *params, ObjectFile *objFile, // We do not use any address space layout randomization in gem5 // therefore the random fields become zero; the smallest gap space was // chosen but gap could potentially be much larger. - mmap_end = (Addr)0x7FFFF7FFF000ULL; + memState->mmapEnd = (Addr)0x7FFFF7FFF000ULL; } void @@ -159,10 +168,10 @@ I386Process::I386Process(ProcessParams *params, ObjectFile *objFile, vsyscallPage.vsyscallOffset = 0x400; vsyscallPage.vsysexitOffset = 0x410; - stack_base = _gdtStart; + memState->stackBase = _gdtStart; // Set pointer for next thread stack. Reserve 8M for main stack. - next_thread_stack_base = stack_base - (8 * 1024 * 1024); + memState->nextThreadStackBase = memState->stackBase - (8 * 1024 * 1024); // "mmap_base" is a function which defines where mmap region starts in // the process address space. @@ -172,7 +181,7 @@ I386Process::I386Process(ProcessParams *params, ObjectFile *objFile, // We do not use any address space layout randomization in gem5 // therefore the random fields become zero; the smallest gap space was // chosen but gap could potentially be much larger. - mmap_end = (Addr)0xB7FFF000ULL; + memState->mmapEnd = (Addr)0xB7FFF000ULL; } SyscallDesc* @@ -946,18 +955,21 @@ X86Process::argsInit(int pageSize, aux_padding + frame_size; - stack_min = stack_base - space_needed; - stack_min = roundDown(stack_min, align); - stack_size = roundUp(stack_base - stack_min, pageSize); + memState->stackMin = memState->stackBase - space_needed; + memState->stackMin = roundDown(memState->stackMin, align); + memState->stackSize = roundUp(memState->stackBase - memState->stackMin, + pageSize); // map memory - Addr stack_end = roundDown(stack_base - stack_size, pageSize); + Addr stack_end = roundDown(memState->stackBase - memState->stackSize, + pageSize); - DPRINTF(Stack, "Mapping the stack: 0x%x %dB\n", stack_end, stack_size); - allocateMem(stack_end, stack_size); + DPRINTF(Stack, "Mapping the stack: 0x%x %dB\n", + stack_end, memState->stackSize); + allocateMem(stack_end, memState->stackSize); // map out initial stack contents - IntType sentry_base = stack_base - sentry_size; + IntType sentry_base = memState->stackBase - sentry_size; IntType file_name_base = sentry_base - file_name_size; IntType env_data_base = file_name_base - env_data_size; IntType arg_data_base = env_data_base - arg_data_size; @@ -976,7 +988,7 @@ X86Process::argsInit(int pageSize, DPRINTF(Stack, "0x%x - envp array\n", envp_array_base); DPRINTF(Stack, "0x%x - argv array\n", argv_array_base); DPRINTF(Stack, "0x%x - argc \n", argc_base); - DPRINTF(Stack, "0x%x - stack min\n", stack_min); + DPRINTF(Stack, "0x%x - stack min\n", memState->stackMin); // write contents to stack @@ -1023,14 +1035,14 @@ X86Process::argsInit(int pageSize, ThreadContext *tc = system->getThreadContext(contextIds[0]); //Set the stack pointer register - tc->setIntReg(StackPointerReg, stack_min); + tc->setIntReg(StackPointerReg, memState->stackMin); // There doesn't need to be any segment base added in since we're dealing // with the flat segmentation model. tc->pcState(getStartPC()); //Align the "stack_min" to a page boundary. - stack_min = roundDown(stack_min, pageSize); + memState->stackMin = roundDown(memState->stackMin, pageSize); } void @@ -1074,6 +1086,14 @@ X86_64Process::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val) return tc->setIntReg(ArgumentReg[i], val); } +void +X86_64Process::clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *p, TheISA::IntReg flags) +{ + X86Process::clone(old_tc, new_tc, p, flags); + ((X86_64Process*)p)->vsyscallPage = vsyscallPage; +} + X86ISA::IntReg I386Process::getSyscallArg(ThreadContext *tc, int &i) { @@ -1098,3 +1118,11 @@ I386Process::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val) assert(i < NumArgumentRegs); return tc->setIntReg(ArgumentReg[i], val); } + +void +I386Process::clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *p, TheISA::IntReg flags) +{ + X86Process::clone(old_tc, new_tc, p, flags); + ((I386Process*)p)->vsyscallPage = vsyscallPage; +} diff --git a/src/arch/x86/process.hh b/src/arch/x86/process.hh index 9e3fafbdd..4240ee625 100644 --- a/src/arch/x86/process.hh +++ b/src/arch/x86/process.hh @@ -82,6 +82,21 @@ namespace X86ISA SyscallDesc* getDesc(int callnum); void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); + void clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *process, TheISA::IntReg flags); + + X86Process & + operator=(const X86Process &in) + { + if (this == &in) + return *this; + + _gdtStart = in._gdtStart; + _gdtSize = in._gdtSize; + syscallDescs = in.syscallDescs; + + return *this; + } }; class X86_64Process : public X86Process @@ -97,6 +112,20 @@ namespace X86ISA Addr size; Addr vtimeOffset; Addr vgettimeofdayOffset; + + VSyscallPage & + operator=(const VSyscallPage &in) + { + if (this == &in) + return *this; + + base = in.base; + size = in.size; + vtimeOffset = in.vtimeOffset; + vgettimeofdayOffset = in.vgettimeofdayOffset; + + return *this; + } }; VSyscallPage vsyscallPage; @@ -108,6 +137,8 @@ namespace X86ISA /// Explicitly import the otherwise hidden getSyscallArg using Process::getSyscallArg; void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); + void clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *process, TheISA::IntReg flags); }; class I386Process : public X86Process @@ -123,6 +154,20 @@ namespace X86ISA Addr size; Addr vsyscallOffset; Addr vsysexitOffset; + + VSyscallPage & + operator=(const VSyscallPage &in) + { + if (this == &in) + return *this; + + base = in.base; + size = in.size; + vsyscallOffset = in.vsyscallOffset; + vsysexitOffset = in.vsysexitOffset; + + return *this; + } }; VSyscallPage vsyscallPage; @@ -134,6 +179,8 @@ namespace X86ISA X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); + void clone(ThreadContext *old_tc, ThreadContext *new_tc, + Process *process, TheISA::IntReg flags); }; /** diff --git a/src/arch/x86/types.hh b/src/arch/x86/types.hh index 6451056ee..954f9f16e 100644 --- a/src/arch/x86/types.hh +++ b/src/arch/x86/types.hh @@ -305,6 +305,13 @@ namespace X86ISA PCState() {} PCState(Addr val) { set(val); } + void + setNPC(Addr val) + { + Base::setNPC(val); + _size = 0; + } + uint8_t size() const { return _size; } void size(uint8_t newSize) { _size = newSize; } |