1 files changed, 54 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/x86/exec.c b/payloads/libpayload/arch/x86/exec.c
new file mode 100644
index 0000000000..06a5ed2bcd
--- /dev/null
+++ b/payloads/libpayload/arch/x86/exec.c
@@ -0,0 +1,54 @@
+/*
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <libpayload-config.h>
+#include <libpayload.h>
+
+#if CONFIG(LP_ARCH_X86_32)
+extern void i386_do_exec(long addr, int argc, char **argv, int *ret);
+#else
+#error "exec does not currently support x86_64."
+#endif
+
+/**
+ * Execute code in memory.
+ *
+ * @param addr TODO
+ * @param argc TODO
+ * @param argv TODO
+ * @return Return the return value from the entry point.
+ */
+int exec(long addr, int argc, char **argv)
+{
+	int val = -1;
+
+#if CONFIG(LP_ARCH_X86_32)
+	i386_do_exec(addr, argc, argv, &val);
+#endif
+	return val;
+}