[gem5-dev] Change in gem5/gem5[master]: x86: Add an object file loader for linux.

[Gabe Black (Gerrit)]

Gabe Black has uploaded this change for review. (  
https://gem5-review.googlesource.com/c/public/gem5/+/18630

Change subject: x86: Add an object file loader for linux.
......................................................................

x86: Add an object file loader for linux.

Change-Id: I283dd1f52fd020ad3c226eb00fc9216ee034c67f
---
M src/arch/x86/linux/process.cc
1 file changed, 35 insertions(+), 0 deletions(-)



diff --git a/src/arch/x86/linux/process.cc b/src/arch/x86/linux/process.cc
index 9e8997a..c1eff35 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/loader.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 ObjectFileLoader
+{
+  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,

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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I283dd1f52fd020ad3c226eb00fc9216ee034c67f
Gerrit-Change-Number: 18630
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <gabebl...@google.com>
Gerrit-MessageType: newchange
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