sandbox: Add a new header for the system malloc()

Some files use U-Boot headers but still need to access the system
malloc(). Allow this by creating a new asm/malloc.h which can be used so
long as U-Boot's malloc.h has not been included.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/sandbox/include/asm/malloc.h b/arch/sandbox/include/asm/malloc.h
new file mode 100644
index 0000000000..a1467b5ead
--- /dev/null
+++ b/arch/sandbox/include/asm/malloc.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Sandbox access to system malloc (i.e. not U-Boot's)
+ *
+ * Copyright 2020 Google LLC
+ */
+
+#ifndef __ASM_MALLOC_H
+
+void *malloc(size_t size);
+void free(void *ptr);
+void *calloc(size_t nmemb, size_t size);
+void *realloc(void *ptr, size_t size);
+void *reallocarray(void *ptr, size_t nmemb, size_t size);
+
+/*
+ * This header allows calling the system allocation routines. It makes no
+ * sense to also include U-Boot's malloc.h since that redfines malloc to
+ * have a 'dl' prefix. These two implementations cannot be mixed and matched
+ * in the same file.
+ */
+#ifdef __MALLOC_H__
+#error "This sandbox header file cannot be included with malloc.h"
+#endif
+
+#endif