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BUILD: Update For IAR support

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Applied the same change as in mbed-crypto for using this as a sub
project with the IAR toolchain. Use __asm generic ,and avoid empty
enum. Avoid declaration of array with null size. This is a porting
of the original patch contributed to trusted-firmware-m.

Signed-off-by: TTornblom <thomas.tornblom@iar.com>
Signed-off-by: Michel Jaouen <michel.jaouen@st.com>
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
This commit is contained in:
TTornblom
2020-04-16 13:53:38 +02:00
committed by Antonio de Angelis
parent 7740eaf32f
commit ac9e3402ab
2 changed files with 9 additions and 2 deletions
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4
CMakeLists.txt
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@ -223,7 +223,9 @@ if(CMAKE_COMPILER_IS_CLANG)
endif(CMAKE_COMPILER_IS_CLANG) endif(CMAKE_COMPILER_IS_CLANG)
if(CMAKE_COMPILER_IS_IAR) if(CMAKE_COMPILER_IS_IAR)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --warn_about_c_style_casts -Ohz") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --warn_about_c_style_casts")
set(CMAKE_C_FLAGS_RELEASE "-Ohz")
set(CMAKE_C_FLAGS_DEBUG "--debug -On")
endif(CMAKE_COMPILER_IS_IAR) endif(CMAKE_COMPILER_IS_IAR)
if(CMAKE_COMPILER_IS_MSVC) if(CMAKE_COMPILER_IS_MSVC)

7
library/psa_crypto.c
View File

@ -4948,8 +4948,13 @@ static psa_status_t psa_key_agreement_internal(psa_key_derivation_operation_t *o
size_t peer_key_length) size_t peer_key_length)
{ {
psa_status_t status; psa_status_t status;
#if PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE != 0
uint8_t shared_secret[PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE]; uint8_t shared_secret[PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE];
size_t shared_secret_length = sizeof(shared_secret);
#else
uint8_t *shared_secret = NULL;
size_t shared_secret_length = 0; size_t shared_secret_length = 0;
#endif
psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg); psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg);
/* Step 1: run the secret agreement algorithm to generate the shared /* Step 1: run the secret agreement algorithm to generate the shared
@ -4958,7 +4963,7 @@ static psa_status_t psa_key_agreement_internal(psa_key_derivation_operation_t *o
private_key, private_key,
peer_key, peer_key_length, peer_key, peer_key_length,
shared_secret, shared_secret,
sizeof(shared_secret), shared_secret_length,
&shared_secret_length); &shared_secret_length);
if (status != PSA_SUCCESS) { if (status != PSA_SUCCESS) {
goto exit; goto exit;