Replace some memset call by zeromem
Replace all use of memset by zeromem when zeroing moderately-sized
structure by applying the following transformation:
memset(x, 0, sizeof(x)) => zeromem(x, sizeof(x))
As the Trusted Firmware is compiled with -ffreestanding, it forbids the
compiler from using __builtin_memset and forces it to generate calls to
the slow memset implementation. Zeromem is a near drop in replacement
for this use case, with a more efficient implementation on both AArch32
and AArch64.
Change-Id: Ia7f3a90e888b96d056881be09f0b4d65b41aa79e
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
diff --git a/drivers/partition/gpt.c b/drivers/partition/gpt.c
index 9240d5a..05f13f3 100644
--- a/drivers/partition/gpt.c
+++ b/drivers/partition/gpt.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -33,6 +33,7 @@
#include <errno.h>
#include <gpt.h>
#include <string.h>
+#include <utils.h>
static int unicode_to_ascii(unsigned short *str_in, unsigned char *str_out)
{
@@ -65,7 +66,7 @@
return -EINVAL;
}
- memset(entry, 0, sizeof(partition_entry_t));
+ zeromem(entry, sizeof(partition_entry_t));
result = unicode_to_ascii(gpt_entry->name, (uint8_t *)entry->name);
if (result != 0) {
return result;