em-app update to support nitro and add a few more utility functions

Author: Adrian Cruceru

.travis.yml

@@ -43,4 +43,13 @@ matrix:
         # NOTE: linking glibc version of OpenSSL with musl binary.
         # Unlikely to produce a working binary, but at least the build succeeds.
         - mkdir -p /tmp/muslinclude && ln -sf /usr/include/x86_64-linux-gnu/openssl /tmp/muslinclude/openssl && PKG_CONFIG_ALLOW_CROSS=1 CFLAGS=-I/tmp/muslinclude cargo build --locked -p fortanix-sgx-tools --target x86_64-unknown-linux-musl
-        - ./doc/generate-api-docs.sh
+        - cargo build --verbose --locked -p em-app --target=x86_64-fortanix-unknown-sgx
+        - cargo build --verbose --locked -p em-app --target=x86_64-unknown-linux-gnu
+        - cargo build --verbose --locked -p em-app --target=x86_64-unknown-linux-musl
+        - cargo build --verbose --locked -p get-certificate --target=x86_64-fortanix-unknown-sgx
+        - cargo build --verbose --locked -p get-certificate --target=x86_64-unknown-linux-gnu
+        - cargo build --verbose --locked -p get-certificate --target=x86_64-unknown-linux-musl
+        - cargo build --verbose --locked -p harmonize --target=x86_64-fortanix-unknown-sgx
+        - cargo build --verbose --locked -p harmonize --target=x86_64-unknown-linux-gnu
+        - cargo build --verbose --locked -p harmonize --target=x86_64-unknown-linux-musl
+        - ./doc/generate-api-docs.sh