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diff --git a/gcc/pex.h b/gcc/pex.h
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+/* C++ wrapper around libiberty's pex API.
+   Copyright (C) 2025 Free Software Foundation, Inc.
+   Contributed by David Malcolm <dmalcolm@redhat.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_PEX_H
+#define GCC_PEX_H
+
+struct file_wrapper
+{
+  enum class ownership { owned, borrowed };
+
+  file_wrapper (FILE *file, enum ownership ownership)
+  : m_file (file),
+    m_ownership (ownership)
+  {
+  }
+  ~file_wrapper ()
+  {
+    if (m_ownership == ownership::owned)
+      {
+	gcc_assert (m_file);
+	fclose (m_file);
+      }
+  }
+
+  std::unique_ptr<std::vector<char>>
+  read_all ();
+
+  FILE *m_file;
+  enum ownership m_ownership;
+};
+
+// RAII wrapper around pex_obj
+
+struct pex
+{
+  pex (int flags, const char *pname, const char *tempbase)
+  : m_obj (pex_init (flags, pname, tempbase))
+  {
+  }
+
+  ~pex ()
+  {
+    pex_free (m_obj);
+  }
+
+  const char *
+  run (int flags, const char *executable, char * const *argv,
+       const char *outname, const char *errname, int *err)
+  {
+    return pex_run (m_obj, flags, executable, argv, outname, errname, err);
+  }
+
+  const char *
+  run (int flags, const char *executable, const std::vector<std::string> &args,
+       const char *outname, const char *errname, int *err);
+
+  file_wrapper
+  input_file (int flags, const char *in_name)
+  {
+    return file_wrapper (pex_input_file (m_obj, flags, in_name),
+			 /* closed on first call to pex_run.  */
+			 file_wrapper::ownership::borrowed);
+  }
+
+  file_wrapper
+  input_pipe (bool binary = true)
+  {
+    return file_wrapper (pex_input_pipe (m_obj, binary),
+			 /* closed on first call to pex_run.  */
+			 file_wrapper::ownership::borrowed);
+  }
+
+  file_wrapper
+  read_output (bool binary = true)
+  {
+    return file_wrapper (pex_read_output (m_obj, binary),
+			 file_wrapper::ownership::borrowed);
+  }
+
+  pex_obj *m_obj;
+};
+
+#endif /* GCC_PEX_H */