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Add a functional port that is used to load the original binaries in FS

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SE mode now has a port that goes to whatever toplevel mem object the
CPU sees that does the appropriate translation for syscall emulation

SConscript:
    translating port is a syscall emu only source
arch/alpha/system.cc:
base/loader/object_file.cc:
base/loader/object_file.hh:
    Use the new functional port to write the binaries into memory
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/simple/cpu.cc:
    We aren't always going to be writing straight to memory with syscalls
    support writing to a cache
mem/port.hh:
    Add a simple unidirectional functional port that panics on any incoming requests
mem/translating_port.hh:
    make translating port inherit from the simple port
sim/system.cc:
sim/system.hh:
    Add a functional port that is used to load the original binaries

--HG--
extra : convert_revision : 9096866d0b23e3aceea68394abb76e63c0f8fd8d
This commit is contained in:
Ali Saidi
2006-03-30 18:06:00 -05:00
parent e196d20d9d
commit 5936c79ba0
11 changed files with 52 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
base/loader/object_file.cc
View File

@@ -63,16 +63,10 @@ ObjectFile::~ObjectFile()
bool
ObjectFile::loadSection(Section *sec, Port *memPort, bool loadPhys)
ObjectFile::loadSection(Section *sec, Port *memPort, Addr addrMask)
{
if (sec->size != 0) {
Addr addr = sec->baseAddr;
if (loadPhys) {
// this is Alpha-specific... going to have to fix this
// for other architectures
addr &= (ULL(1) << 40) - 1;
}
Addr addr = sec->baseAddr & addrMask;
if (sec->fileImage) {
memPort->writeBlob(addr, sec->fileImage, sec->size);
}
@@ -86,11 +80,11 @@ ObjectFile::loadSection(Section *sec, Port *memPort, bool loadPhys)
bool
ObjectFile::loadSections(Port *memPort, bool loadPhys)
ObjectFile::loadSections(Port *memPort, Addr addrMask)
{
return (loadSection(&text, memPort, loadPhys)
&& loadSection(&data, memPort, loadPhys)
&& loadSection(&bss, memPort, loadPhys));
return (loadSection(&text, memPort, addrMask)
&& loadSection(&data, memPort, addrMask)
&& loadSection(&bss, memPort, addrMask));
}

6
base/loader/object_file.hh
View File

@@ -29,6 +29,7 @@
#ifndef __OBJECT_FILE_HH__
#define __OBJECT_FILE_HH__
#include <limits>
#include <string>
#include "sim/host.hh" // for Addr
@@ -72,7 +73,8 @@ class ObjectFile
void close();
virtual bool loadSections(Port *memPort, bool loadPhys = false);
virtual bool loadSections(Port *memPort, Addr addrMask =
std::numeric_limits<Addr>::max());
virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0;
virtual bool loadLocalSymbols(SymbolTable *symtab) = 0;
@@ -94,7 +96,7 @@ class ObjectFile
Section data;
Section bss;
bool loadSection(Section *sec, Port *memPort, bool loadPhys);
bool loadSection(Section *sec, Port *memPort, Addr addrMask);
void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; }
public: