From b695af1dfcd01bcca91c3bfc9c9a47fb62e3b27b Mon Sep 17 00:00:00 2001
From: Anthony Zhou <anzhou@nvidia.com>
Date: Mon, 2 Apr 2018 19:34:59 +0800
Subject: [PATCH] Tegra: remove unused libc files from makefile
This patch redefines the variable LIBC_SRCS for Tegra platforms,
to remove unused libc files from the list. This patch is a building
block to eventually use other libc implementations in the future.
Change-Id: Iccde5a75f5e2d6f4e2dbc6274beb423b80e846fd
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
---
plat/nvidia/tegra/platform.mk | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/plat/nvidia/tegra/platform.mk b/plat/nvidia/tegra/platform.mk
index 614d2a26d..6ef1900c6 100644
--- a/plat/nvidia/tegra/platform.mk
+++ b/plat/nvidia/tegra/platform.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -34,6 +34,9 @@ ENABLE_SVE_FOR_NS := 0
# enable D-cache early during CPU warmboot
WARMBOOT_ENABLE_DCACHE_EARLY := 1
+# remove the standard libc
+OVERRIDE_LIBC := 1
+
include plat/nvidia/tegra/common/tegra_common.mk
include ${SOC_DIR}/platform_${TARGET_SOC}.mk
@@ -42,3 +45,17 @@ BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${TARGET_SOC}/${BUILD_TYPE}
# platform cflags (enable signed comparisons, disable stdlib)
TF_CFLAGS += -Wsign-compare -nostdlib
+
+# override with necessary libc files for the Tegra platform
+override LIBC_SRCS := $(addprefix lib/libc/, \
+ assert.c \
+ memcpy.c \
+ memmove.c \
+ memset.c \
+ printf.c \
+ putchar.c \
+ strlen.c \
+ snprintf.c)
+
+INCLUDES += -Iinclude/lib/libc \
+ -Iinclude/lib/libc/$(ARCH) \
--
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