Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/33899 )
Change subject: base: Expose the ObjectFile class to python.
......................................................................
base: Expose the ObjectFile class to python.
This will make it possible to inspect a binary and determine, for
example, what architecture or operating system it was compiled for.
Change-Id: Ib40f1e1c02448dc5bf084bb0dd98d3767f463fef
---
M src/base/loader/SConscript
M src/base/loader/object_file.cc
M src/base/loader/object_file.hh
A src/base/loader/python.cc
4 files changed, 116 insertions(+), 0 deletions(-)
diff --git a/src/base/loader/SConscript b/src/base/loader/SConscript
index d17875f..d40fa42 100644
--- a/src/base/loader/SConscript
+++ b/src/base/loader/SConscript
@@ -35,3 +35,6 @@
Source('memory_image.cc')
Source('object_file.cc')
Source('symtab.cc')
+
+if env['USE_PYTHON']:
+ Source('python.cc')
diff --git a/src/base/loader/object_file.cc b/src/base/loader/object_file.cc
index 12e5606..6fdf228 100644
--- a/src/base/loader/object_file.cc
+++ b/src/base/loader/object_file.cc
@@ -38,6 +38,60 @@
ObjectFile::ObjectFile(ImageFileDataPtr ifd) : ImageFile(ifd) {}
+const char *
+archToString(Arch arch)
+{
+ switch (arch) {
+ case UnknownArch:
+ return "unknown";
+ case SPARC64:
+ return "sparc64";
+ case SPARC32:
+ return "sparc32";
+ case Mips:
+ return "mips";
+ case X86_64:
+ return "x86_64";
+ case I386:
+ return "i386";
+ case Arm64:
+ return "arm64";
+ case Arm:
+ return "arm";
+ case Thumb:
+ return "thumb";
+ case Power:
+ return "power";
+ case Riscv64:
+ return "riscv64";
+ case Riscv32:
+ return "riscv32";
+ default:
+ panic("Unrecognized arch %d.", arch);
+ }
+}
+
+const char *
+opSysToString(OpSys op_sys)
+{
+ switch (op_sys) {
+ case UnknownOpSys:
+ return "unknown";
+ case Tru64:
+ return "tru64";
+ case Linux:
+ return "linux";
+ case Solaris:
+ return "solaris";
+ case LinuxArmOABI:
+ return "linux_arm_OABI";
+ case FreeBSD:
+ return "freebsd";
+ default:
+ panic("Unrecognized operating system %d.", op_sys);
+ }
+}
+
namespace
{
diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh
index 9ff9997..0bfd918 100644
--- a/src/base/loader/object_file.hh
+++ b/src/base/loader/object_file.hh
@@ -56,6 +56,8 @@
Riscv32
};
+const char *archToString(Arch arch);
+
enum OpSys {
UnknownOpSys,
Tru64,
@@ -65,6 +67,8 @@
FreeBSD
};
+const char *opSysToString(OpSys op_sys);
+
class SymbolTable;
class ObjectFile : public ImageFile
diff --git a/src/base/loader/python.cc b/src/base/loader/python.cc
new file mode 100644
index 0000000..0cdb4b3
--- /dev/null
+++ b/src/base/loader/python.cc
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2020 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "base/loader/object_file.hh"
+#include "python/pybind11/pybind.hh"
+#include "sim/init.hh"
+
+namespace
+{
+
+void
+objectfile_pybind(pybind11::module &m_internal)
+{
+ pybind11::module m = m_internal.def_submodule("object_file");
+
+ pybind11::class_<Loader::ObjectFile>(m, "ObjectFile")
+ .def("get_arch", [](const Loader::ObjectFile &obj) {
+ return Loader::archToString(obj.getArch());
+ }, pybind11::return_value_policy::reference)
+ .def("get_op_sys", [](const Loader::ObjectFile &obj) {
+ return Loader::opSysToString(obj.getOpSys());
+ }, pybind11::return_value_policy::reference)
+ .def("entry_point", &Loader::ObjectFile::entryPoint)
+ .def("get_interpreter", &Loader::ObjectFile::getInterpreter);
+
+ m.def("create", [](const std::string &fname) {
+ return Loader::createObjectFile(fname); });
+}
+EmbeddedPyBind embed_("object_file", &objectfile_pybind);
+
+} // anonymous namespace
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ib40f1e1c02448dc5bf084bb0dd98d3767f463fef
Gerrit-Change-Number: 33899
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <[email protected]>
Gerrit-MessageType: newchange
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