X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Farch%2Fx86%2Fprocess.cc;h=cce8e3a3d7d4b438f52771330f45d15a1559babf;hb=52540b1b785aac9b307dfcc976527d94899deb94;hp=02cd454785e21ace7c0dc16aad71e734d52abe58;hpb=f064aa306061ecc468efd8cf148ed08398ca824d;p=gem5.git diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc index 02cd45478..cce8e3a3d 100644 --- a/src/arch/x86/process.cc +++ b/src/arch/x86/process.cc @@ -41,18 +41,18 @@ * Ali Saidi */ +#include "arch/x86/regs/misc.hh" +#include "arch/x86/regs/segment.hh" #include "arch/x86/isa_traits.hh" -#include "arch/x86/miscregs.hh" #include "arch/x86/process.hh" -#include "arch/x86/segmentregs.hh" #include "arch/x86/types.hh" -#include "base/loader/object_file.hh" #include "base/loader/elf_object.hh" +#include "base/loader/object_file.hh" #include "base/misc.hh" #include "base/trace.hh" #include "cpu/thread_context.hh" +#include "debug/Stack.hh" #include "mem/page_table.hh" -#include "mem/translating_port.hh" #include "sim/process_impl.hh" #include "sim/syscall_emul.hh" #include "sim/system.hh" @@ -116,10 +116,12 @@ X86_64LiveProcess::X86_64LiveProcess(LiveProcessParams *params, void I386LiveProcess::syscall(int64_t callnum, ThreadContext *tc) { - Addr eip = tc->readPC(); + TheISA::PCState pc = tc->pcState(); + Addr eip = pc.pc(); if (eip >= vsyscallPage.base && eip < vsyscallPage.base + vsyscallPage.size) { - tc->setNextPC(vsyscallPage.base + vsyscallPage.vsysexitOffset); + pc.npc(vsyscallPage.base + vsyscallPage.vsysexitOffset); + tc->pcState(pc); } X86LiveProcess::syscall(callnum, tc); } @@ -130,7 +132,7 @@ I386LiveProcess::I386LiveProcess(LiveProcessParams *params, int _numSyscallDescs) : X86LiveProcess(params, objFile, _syscallDescs, _numSyscallDescs) { - _gdtStart = ULL(0x100000000); + _gdtStart = ULL(0xffffd000); _gdtSize = VMPageSize; vsyscallPage.base = 0xffffe000ULL; @@ -138,7 +140,7 @@ I386LiveProcess::I386LiveProcess(LiveProcessParams *params, vsyscallPage.vsyscallOffset = 0x400; vsyscallPage.vsysexitOffset = 0x410; - stack_base = vsyscallPage.base; + stack_base = _gdtStart; // Set pointer for next thread stack. Reserve 8M for main stack. next_thread_stack_base = stack_base - (8 * 1024 * 1024); @@ -164,13 +166,13 @@ X86_64LiveProcess::initState() argsInit(sizeof(uint64_t), VMPageSize); // Set up the vsyscall page for this process. - pTable->allocate(vsyscallPage.base, vsyscallPage.size); + allocateMem(vsyscallPage.base, vsyscallPage.size); uint8_t vtimeBlob[] = { 0x48,0xc7,0xc0,0xc9,0x00,0x00,0x00, // mov $0xc9,%rax 0x0f,0x05, // syscall 0xc3 // retq }; - initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vtimeOffset, + initVirtMem.writeBlob(vsyscallPage.base + vsyscallPage.vtimeOffset, vtimeBlob, sizeof(vtimeBlob)); uint8_t vgettimeofdayBlob[] = { @@ -178,7 +180,7 @@ X86_64LiveProcess::initState() 0x0f,0x05, // syscall 0xc3 // retq }; - initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vgettimeofdayOffset, + initVirtMem.writeBlob(vsyscallPage.base + vsyscallPage.vgettimeofdayOffset, vgettimeofdayBlob, sizeof(vgettimeofdayBlob)); for (int i = 0; i < contextIds.size(); i++) { @@ -262,16 +264,16 @@ I386LiveProcess::initState() * Set up a GDT for this process. The whole GDT wouldn't really be for * this process, but the only parts we care about are. */ - pTable->allocate(_gdtStart, _gdtSize); + allocateMem(_gdtStart, _gdtSize); uint64_t zero = 0; assert(_gdtSize % sizeof(zero) == 0); for (Addr gdtCurrent = _gdtStart; gdtCurrent < _gdtStart + _gdtSize; gdtCurrent += sizeof(zero)) { - initVirtMem->write(gdtCurrent, zero); + initVirtMem.write(gdtCurrent, zero); } // Set up the vsyscall page for this process. - pTable->allocate(vsyscallPage.base, vsyscallPage.size); + allocateMem(vsyscallPage.base, vsyscallPage.size); uint8_t vsyscallBlob[] = { 0x51, // push %ecx 0x52, // push %edp @@ -279,7 +281,7 @@ I386LiveProcess::initState() 0x89, 0xe5, // mov %esp, %ebp 0x0f, 0x34 // sysenter }; - initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vsyscallOffset, + initVirtMem.writeBlob(vsyscallPage.base + vsyscallPage.vsyscallOffset, vsyscallBlob, sizeof(vsyscallBlob)); uint8_t vsysexitBlob[] = { @@ -288,7 +290,7 @@ I386LiveProcess::initState() 0x59, // pop %ecx 0xc3 // ret }; - initVirtMem->writeBlob(vsyscallPage.base + vsyscallPage.vsysexitOffset, + initVirtMem.writeBlob(vsyscallPage.base + vsyscallPage.vsysexitOffset, vsysexitBlob, sizeof(vsysexitBlob)); for (int i = 0; i < contextIds.size(); i++) { @@ -574,8 +576,7 @@ X86LiveProcess::argsInit(int pageSize, stack_size = stack_base - stack_min; // map memory - pTable->allocate(roundDown(stack_min, pageSize), - roundUp(stack_size, pageSize)); + allocateMem(roundDown(stack_min, pageSize), roundUp(stack_size, pageSize)); // map out initial stack contents IntType sentry_base = stack_base - sentry_size; @@ -607,11 +608,11 @@ X86LiveProcess::argsInit(int pageSize, //Write out the sentry void * IntType sentry_NULL = 0; - initVirtMem->writeBlob(sentry_base, + initVirtMem.writeBlob(sentry_base, (uint8_t*)&sentry_NULL, sentry_size); //Write the file name - initVirtMem->writeString(file_name_base, filename.c_str()); + initVirtMem.writeString(file_name_base, filename.c_str()); //Fix up the aux vectors which point to data assert(auxv[auxv.size() - 3].a_type == M5_AT_RANDOM); @@ -624,32 +625,30 @@ X86LiveProcess::argsInit(int pageSize, //Copy the aux stuff for(int x = 0; x < auxv.size(); x++) { - initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize, + initVirtMem.writeBlob(auxv_array_base + x * 2 * intSize, (uint8_t*)&(auxv[x].a_type), intSize); - initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * 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(), + initVirtMem.writeBlob(auxv_array_base + 2 * intSize * auxv.size(), (uint8_t*)&zero, 2 * intSize); - initVirtMem->writeString(aux_data_base, platform.c_str()); + initVirtMem.writeString(aux_data_base, platform.c_str()); 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); + initVirtMem.writeBlob(argc_base, (uint8_t*)&guestArgc, intSize); ThreadContext *tc = system->getThreadContext(contextIds[0]); //Set the stack pointer register tc->setIntReg(StackPointerReg, stack_min); - Addr prog_entry = objFile->entryPoint(); // There doesn't need to be any segment base added in since we're dealing // with the flat segmentation model. - tc->setPC(prog_entry); - tc->setNextPC(prog_entry + sizeof(MachInst)); + tc->pcState(objFile->entryPoint()); //Align the "stack_min" to a page boundary. stack_min = roundDown(stack_min, pageSize);