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c46c18c598
If `MBEDTLS_PLATFORM_SNPRINTF_ALT` isn't used, the function `mbedtls_platform_set_snprintf()` isn't defined. In case a platform uses a different mbed TLS configuration file than the one provided by the Trusted Firmware, and it doesn't define the mentioned build option, this will result in a build error. This patch modifies the initialization code so that `mbedtls_platform_set_snprintf()` is only used if `MBEDTLS_PLATFORM_SNPRINTF_ALT` is defined, allowing platforms to use it or not depending on their needs. Change-Id: I1d5c86d57e9b2871ba463030bf89210ebec5178e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
42 lines
888 B
C
42 lines
888 B
C
/*
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* Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <debug.h>
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/* mbed TLS headers */
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#include <mbedtls/memory_buffer_alloc.h>
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#include <mbedtls/platform.h>
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#include <mbedtls_config.h>
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/*
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* mbed TLS heap
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*/
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#if (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_ECDSA)
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#define MBEDTLS_HEAP_SIZE (14*1024)
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#elif (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA)
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#define MBEDTLS_HEAP_SIZE (6*1024)
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#endif
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static unsigned char heap[MBEDTLS_HEAP_SIZE];
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/*
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* mbed TLS initialization function
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*/
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void mbedtls_init(void)
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{
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static int ready;
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if (!ready) {
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/* Initialize the mbed TLS heap */
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mbedtls_memory_buffer_alloc_init(heap, MBEDTLS_HEAP_SIZE);
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#ifdef MBEDTLS_PLATFORM_SNPRINTF_ALT
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/* Use reduced version of snprintf to save space. */
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mbedtls_platform_set_snprintf(tf_snprintf);
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#endif
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ready = 1;
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}
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}
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