diff options
Diffstat (limited to 'src/arch/sparc')
| -rw-r--r-- | src/arch/sparc/process.cc | 31 | ||||
| -rw-r--r-- | src/arch/sparc/process.hh | 42 |
2 files changed, 47 insertions, 26 deletions
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc index a64bc587f..d8384b470 100644 --- a/src/arch/sparc/process.cc +++ b/src/arch/sparc/process.cc @@ -57,15 +57,6 @@ SparcProcess::SparcProcess(ProcessParams * params, ObjectFile *objFile, Addr _StackBias) : Process(params, objFile), StackBias(_StackBias) { - - // XXX all the below need to be updated for SPARC - Ali - memState->brkPoint = objFile->dataBase() + objFile->dataSize() + - objFile->bssSize(); - memState->brkPoint = roundUp(memState->brkPoint, PageBytes); - - // Set pointer for next thread stack. Reserve 8M for main stack. - memState->nextThreadStackBase = memState->stackBase - (8 * 1024 * 1024); - // Initialize these to 0s fillStart = 0; spillStart = 0; @@ -325,16 +316,16 @@ SparcProcess::argsInit(int pageSize) aux_padding + frame_size; - memState->stackMin = memState->stackBase - space_needed; - memState->stackMin = roundDown(memState->stackMin, align); - memState->stackSize = memState->stackBase - memState->stackMin; + memState->setStackMin(memState->getStackBase() - space_needed); + memState->setStackMin(roundDown(memState->getStackMin(), align)); + memState->setStackSize(memState->getStackBase() - memState->getStackMin()); // Allocate space for the stack - allocateMem(roundDown(memState->stackMin, pageSize), - roundUp(memState->stackSize, pageSize)); + allocateMem(roundDown(memState->getStackMin(), pageSize), + roundUp(memState->getStackSize(), pageSize)); // map out initial stack contents - IntType sentry_base = memState->stackBase - sentry_size; + IntType sentry_base = memState->getStackBase() - 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; @@ -358,9 +349,9 @@ SparcProcess::argsInit(int pageSize) DPRINTF(Stack, "%#x - argv array\n", argv_array_base); DPRINTF(Stack, "%#x - argc \n", argc_base); DPRINTF(Stack, "%#x - window save\n", window_save_base); - DPRINTF(Stack, "%#x - stack min\n", memState->stackMin); + DPRINTF(Stack, "%#x - stack min\n", memState->getStackMin()); - assert(window_save_base == memState->stackMin); + assert(window_save_base == memState->getStackMin()); // write contents to stack @@ -399,7 +390,7 @@ SparcProcess::argsInit(int pageSize) // Set up space for the trap handlers into the processes address space. // Since the stack grows down and there is reserved address space abov // it, we can put stuff above it and stay out of the way. - fillStart = memState->stackBase; + fillStart = memState->getStackBase(); spillStart = fillStart + sizeof(MachInst) * numFillInsts; ThreadContext *tc = system->getThreadContext(contextIds[0]); @@ -407,7 +398,7 @@ SparcProcess::argsInit(int pageSize) // assert(NumArgumentRegs >= 2); // tc->setIntReg(ArgumentReg[0], argc); // tc->setIntReg(ArgumentReg[1], argv_array_base); - tc->setIntReg(StackPointerReg, memState->stackMin - StackBias); + tc->setIntReg(StackPointerReg, memState->getStackMin() - StackBias); // %g1 is a pointer to a function that should be run at exit. Since we // don't have anything like that, it should be set to 0. @@ -416,7 +407,7 @@ SparcProcess::argsInit(int pageSize) tc->pcState(getStartPC()); // Align the "stack_min" to a page boundary. - memState->stackMin = roundDown(memState->stackMin, pageSize); + memState->setStackMin(roundDown(memState->getStackMin(), pageSize)); } void diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh index 96901fde3..6a203a400 100644 --- a/src/arch/sparc/process.hh +++ b/src/arch/sparc/process.hh @@ -32,15 +32,16 @@ #ifndef __SPARC_PROCESS_HH__ #define __SPARC_PROCESS_HH__ +#include <memory> #include <string> #include <vector> +#include "arch/sparc/isa_traits.hh" +#include "base/loader/object_file.hh" #include "mem/page_table.hh" #include "sim/byteswap.hh" #include "sim/process.hh" -class ObjectFile; - class SparcProcess : public Process { protected: @@ -77,12 +78,27 @@ class Sparc32Process : public SparcProcess Sparc32Process(ProcessParams * params, ObjectFile *objFile) : SparcProcess(params, objFile, 0) { + Addr brk_point = objFile->dataBase() + objFile->dataSize() + + objFile->bssSize(); + brk_point = roundUp(brk_point, SparcISA::PageBytes); + + // Reserve 8M for main stack. + Addr max_stack_size = 8 * 1024 * 1024; + // Set up stack. On SPARC Linux, stack goes from the top of memory // downward, less the hole for the kernel address space. - memState->stackBase = (Addr)0xf0000000ULL; + Addr stack_base = 0xf0000000ULL; + + // Set pointer for next thread stack. + Addr next_thread_stack_base = stack_base - max_stack_size; // Set up region for mmaps. - memState->mmapEnd = 0x70000000; + Addr mmap_end = 0x70000000; + + memState = std::make_shared<MemState>(brk_point, stack_base, + max_stack_size, + next_thread_stack_base, + mmap_end); } void initState(); @@ -107,12 +123,26 @@ class Sparc64Process : public SparcProcess Sparc64Process(ProcessParams * params, ObjectFile *objFile) : SparcProcess(params, objFile, 2047) { + Addr brk_point = objFile->dataBase() + objFile->dataSize() + + objFile->bssSize(); + brk_point = roundUp(brk_point, SparcISA::PageBytes); + + Addr max_stack_size = 8 * 1024 * 1024; + // Set up stack. On SPARC Linux, stack goes from the top of memory // downward, less the hole for the kernel address space. - memState->stackBase = (Addr)0x80000000000ULL; + Addr stack_base = 0x80000000000ULL; + + // Set pointer for next thread stack. Reserve 8M for main stack. + Addr next_thread_stack_base = stack_base - max_stack_size; // Set up region for mmaps. - memState->mmapEnd = 0xfffff80000000000ULL; + Addr mmap_end = 0xfffff80000000000ULL; + + memState = std::make_shared<MemState>(brk_point, stack_base, + max_stack_size, + next_thread_stack_base, + mmap_end); } void initState(); |