commit b0aa3287e055abf8ffa9a26a97512f1735ee1f52
author David Hu <david.hu@arm.com> Mon Jun 17 17:50:43 2019 +0800
committer David Hu <david.hu@arm.com> Thu Sep 26 09:39:03 2019 +0800
tree cce21597e16223fccdb13fd543a2555f5492de74
parent 40455c97bce0366c83a24653a48b4c37218be6e6

Twincpu: Work around mbed-crypto/mbedtls building issue on Armv6-M

According to [1], add compiler flag -DMULADDC_CANNOT_USE_R7 in
mbed-crypto/mbedtls building on Armv6-M, to work around builidng
issues.

[1]: https://github.com/ARMmbed/mbedtls/issues/1077

Change-Id: I091f7c93a7d275045a7ec17d39e692b27e0544e3
Signed-off-by: David Hu <david.hu@arm.com>

BuildMbedtls.cmake

diff --git a/BuildMbedtls.cmake b/BuildMbedtls.cmake
index 3856248..db266d0 100644
--- a/BuildMbedtls.cmake
+++ b/BuildMbedtls.cmake
@@ -60,7 +60,8 @@
 string(APPEND MBEDTLS_C_FLAGS ${CMAKE_C_FLAGS})
 
 # Workaround Mbed TLS issue https://github.com/ARMmbed/mbedtls/issues/1077
-if(${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv8-M.BASE")
+if ((${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv8-M.BASE") OR
+	(${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv6-M"))
 	string(APPEND MBEDTLS_C_FLAGS " -DMULADDC_CANNOT_USE_R7")
 endif()