x86: Add an object file loader for linux.
Change-Id: I283dd1f52fd020ad3c226eb00fc9216ee034c67f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18630
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc
index f19dce3..95f4ee9 100644
--- a/src/arch/x86/linux/process.cc
+++ b/src/arch/x86/linux/process.cc
@@ -44,6 +44,7 @@
#include "arch/x86/isa_traits.hh"
#include "arch/x86/linux/linux.hh"
#include "arch/x86/registers.hh"
+#include "base/loader/object_file.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "kern/linux/linux.hh"
@@ -54,6 +55,40 @@
using namespace std;
using namespace X86ISA;
+namespace
+{
+
+class X86LinuxObjectFileLoader : public ObjectFile::Loader
+{
+ public:
+ Process *
+ load(ProcessParams *params, ObjectFile *obj_file) override
+ {
+ auto arch = obj_file->getArch();
+ auto opsys = obj_file->getOpSys();
+
+ if (arch != ObjectFile::X86_64 && arch != ObjectFile::I386)
+ return nullptr;
+
+ if (opsys == ObjectFile::UnknownOpSys) {
+ warn("Unknown operating system; assuming Linux.");
+ opsys = ObjectFile::Linux;
+ }
+
+ if (opsys != ObjectFile::Linux)
+ return nullptr;
+
+ if (arch == ObjectFile::X86_64)
+ return new X86_64LinuxProcess(params, obj_file);
+ else
+ return new I386LinuxProcess(params, obj_file);
+ }
+};
+
+X86LinuxObjectFileLoader loader;
+
+} // anonymous namespace
+
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
