Build failing for Sample Code for Open Enclave SDK

[ssahai]

This issue is for a: (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Getting linker error while building sgx.attest.sample.

Minimal steps to reproduce

On executing:

cd sgx.attest.sample/genquotes
make build

Getting a linker error, in the last command for make build i.e. this line of the Makefile.

OS and Version?

Trying to build this on an ACC Ubuntu 18.04 VM, with Open Enclave 0.14.0, installed using sudo apt install open-enclave.

Detailed Output

The output of make build command:

Compilers used: clang-8, clang++-8
LDFLAGS: -L/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave -nostdlib -nodefaultlibs -nostartfiles -Wl,--no-undefined -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--export-dynamic -Wl,-pie -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,now -Wl,-gc-sections -loeenclave -loelibcxx -loelibc -loesyscall -loecore
INCDIR: /opt/openenclave/share/pkgconfig/../../include
CXXFLAGS: -nostdinc -m64 -fPIE -ftls-model=local-exec -fvisibility=hidden -fstack-protector-strong -fno-omit-frame-pointer -ffunction-sections -fdata-sections -mllvm -x86-speculative-load-hardening -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty/libcxx -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty/libc -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty -I/opt/openenclave/share/pkgconfig/../../include
oeedger8r ../remoteattestation.edl --trusted --trusted-dir ../common --search-path /opt/openenclave/share/pkgconfig/../../include --search-path /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx
Generating edge routine, for the Open Enclave SDK.
Processing ../remoteattestation.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/platform.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/attestation.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/cpu.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/debug.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/thread.edl.
Processing /opt/openenclave/share/pkgconfig/../../include/openenclave/edl/sgx/switchless.edl.
Success.
clang++-8 -g -c -nostdinc -m64 -fPIE -ftls-model=local-exec -fvisibility=hidden -fstack-protector-strong -fno-omit-frame-pointer -ffunction-sections -fdata-sections -mllvm -x86-speculative-load-hardening -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty/libcxx -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty/libc -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty -I/opt/openenclave/share/pkgconfig/../../include  -I. -I.. -std=c++11 -DOE_API_VERSION=2 ecalls.cpp ../common/attestation.cpp ../common/crypto.cpp ../common/dispatcher.cpp
clang-8 -g -c -nostdinc -m64 -fPIE -ftls-model=local-exec -fvisibility=hidden -fstack-protector-strong -fno-omit-frame-pointer -ffunction-sections -fdata-sections -mllvm -x86-speculative-load-hardening -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty/libc -I/opt/openenclave/share/pkgconfig/../../include/openenclave/3rdparty -I/opt/openenclave/share/pkgconfig/../../include  -I.. -DOE_API_VERSION=2 ../common/remoteattestation_t.c
clang++-8 -o genquote_enclave attestation.o crypto.o ecalls.o dispatcher.o remoteattestation_t.o -L/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave -nostdlib -nodefaultlibs -nostartfiles -Wl,--no-undefined -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--export-dynamic -Wl,-pie -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,now -Wl,-gc-sections -loeenclave -loelibcxx -loelibc -loesyscall -loecore
crypto.o: In function `Crypto::init_mbedtls()':
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:31: undefined reference to `mbedtls_ctr_drbg_init'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:32: undefined reference to `mbedtls_entropy_init'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:33: undefined reference to `mbedtls_pk_init'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:33: undefined reference to `mbedtls_entropy_func'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:36: undefined reference to `mbedtls_ctr_drbg_seed'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:46: undefined reference to `mbedtls_pk_info_from_type'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:45: undefined reference to `mbedtls_pk_setup'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:56: undefined reference to `mbedtls_ctr_drbg_random'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:55: undefined reference to `mbedtls_rsa_gen_key'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:68: undefined reference to `mbedtls_pk_write_pubkey_pem'
crypto.o: In function `Crypto::cleanup_mbedtls()':
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:86: undefined reference to `mbedtls_pk_free'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:87: undefined reference to `mbedtls_entropy_free'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:88: undefined reference to `mbedtls_ctr_drbg_free'
crypto.o: In function `Crypto::Sha256(unsigned char const*, unsigned long, unsigned char*)':
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:107: undefined reference to `mbedtls_sha256_init'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:109: undefined reference to `mbedtls_sha256_starts_ret'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:113: undefined reference to `mbedtls_sha256_update_ret'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:117: undefined reference to `mbedtls_sha256_finish_ret'
/home/shubham/microsoft-azure-attestation/sgx.attest.sample/genquotes/enclave/../common/crypto.cpp:122: undefined reference to `mbedtls_sha256_free'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(report.c.o): In function `oe_verify_raw_sgx_report':
/source/openenclave/enclave/sgx/report.c:69: undefined reference to `oe_aes_cmac_sign'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(link.c.o):(.data.oe_link_enclave.symbols+0x28): undefined reference to `oe_crypto_initialize'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(quote.c.o): In function `oe_get_quote_cert_chain_internal':
/source/openenclave/common/sgx/quote.c:416: undefined reference to `oe_cert_chain_read_pem'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(quote.c.o): In function `oe_verify_quote_internal':
/source/openenclave/common/sgx/quote.c:263: undefined reference to `oe_cert_chain_read_pem'
/source/openenclave/common/sgx/quote.c:270: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/quote.c:274: undefined reference to `oe_cert_chain_get_root_cert'
/source/openenclave/common/sgx/quote.c:278: undefined reference to `oe_cert_chain_get_cert'
/source/openenclave/common/sgx/quote.c:284: undefined reference to `oe_cert_get_ec_public_key'
/source/openenclave/common/sgx/quote.c:288: undefined reference to `oe_cert_get_ec_public_key'
/source/openenclave/common/sgx/quote.c:294: undefined reference to `oe_ec_public_key_read_pem'
/source/openenclave/common/sgx/quote.c:371: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/quote.c:372: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/quote.c:373: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/quote.c:374: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/quote.c:375: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:376: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:377: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:378: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/quote.c:301: undefined reference to `oe_ec_public_key_equal'
/source/openenclave/common/sgx/quote.c:332: undefined reference to `oe_sha256_init'
/source/openenclave/common/sgx/quote.c:333: undefined reference to `oe_sha256_update'
/source/openenclave/common/sgx/quote.c:338: undefined reference to `oe_sha256_update'
/source/openenclave/common/sgx/quote.c:340: undefined reference to `oe_sha256_final'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(quote.c.o): In function `_read_public_key':
/source/openenclave/common/sgx/quote.c:176: undefined reference to `oe_ec_public_key_from_coordinates'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(quote.c.o): In function `oe_get_sgx_quote_validity':
/source/openenclave/common/sgx/quote.c:719: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/quote.c:780: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:781: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:782: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/quote.c:783: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/quote.c:723: undefined reference to `oe_cert_chain_get_root_cert'
/source/openenclave/common/sgx/quote.c:727: undefined reference to `oe_cert_chain_get_cert'
/source/openenclave/common/sgx/quote.c:733: undefined reference to `oe_cert_get_validity_dates'
/source/openenclave/common/sgx/quote.c:737: undefined reference to `oe_cert_get_validity_dates'
/source/openenclave/common/sgx/quote.c:743: undefined reference to `oe_cert_get_validity_dates'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(quote.c.o): In function `_ecdsa_verify':
/source/openenclave/common/sgx/quote.c:197: undefined reference to `oe_sha256_init'
/source/openenclave/common/sgx/quote.c:198: undefined reference to `oe_sha256_update'
/source/openenclave/common/sgx/quote.c:199: undefined reference to `oe_sha256_final'
/source/openenclave/common/sgx/quote.c:201: undefined reference to `oe_ecdsa_signature_write_der'
/source/openenclave/common/sgx/quote.c:209: undefined reference to `oe_ec_public_key_verify'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(collateral.c.o): In function `oe_validate_revocation_list':
/source/openenclave/common/sgx/collateral.c:279: undefined reference to `oe_cert_chain_read_pem'
/source/openenclave/common/sgx/collateral.c:289: undefined reference to `oe_cert_chain_read_pem'
/source/openenclave/common/sgx/collateral.c:331: undefined reference to `oe_crl_read_der'
/source/openenclave/common/sgx/collateral.c:320: undefined reference to `oe_crl_read_pem'
/source/openenclave/common/sgx/collateral.c:331: undefined reference to `oe_crl_read_der'
/source/openenclave/common/sgx/collateral.c:320: undefined reference to `oe_crl_read_pem'
/source/openenclave/common/sgx/collateral.c:356: undefined reference to `oe_cert_verify'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(collateral.c.o): In function `_get_crl_validity':
/source/openenclave/common/sgx/collateral.c:86: undefined reference to `oe_crl_get_update_dates'
/source/openenclave/common/sgx/collateral.c:93: undefined reference to `oe_crl_get_update_dates'
/source/openenclave/common/sgx/collateral.c:93: undefined reference to `oe_crl_get_update_dates'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(collateral.c.o): In function `oe_validate_revocation_list':
/source/openenclave/common/sgx/collateral.c:447: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/collateral.c:451: undefined reference to `oe_cert_get_validity_dates'
/source/openenclave/common/sgx/collateral.c:475: undefined reference to `oe_crl_free'
/source/openenclave/common/sgx/collateral.c:475: undefined reference to `oe_crl_free'
/source/openenclave/common/sgx/collateral.c:477: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/collateral.c:478: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/collateral.c:479: undefined reference to `oe_cert_free'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(sgxcertextensions.c.o): In function `_get_sgx_extension':
/source/openenclave/common/sgx/sgxcertextensions.c:401: undefined reference to `oe_cert_find_extension'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(tcbinfo.c.o): In function `oe_verify_ecdsa256_signature':
/source/openenclave/common/sgx/tcbinfo.c:1357: undefined reference to `oe_cert_chain_get_root_cert'
/source/openenclave/common/sgx/tcbinfo.c:1384: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/tcbinfo.c:1385: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/tcbinfo.c:1386: undefined reference to `oe_ec_public_key_free'
/source/openenclave/common/sgx/tcbinfo.c:1388: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/tcbinfo.c:1389: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/tcbinfo.c:1358: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/tcbinfo.c:1360: undefined reference to `oe_cert_get_ec_public_key'
/source/openenclave/common/sgx/tcbinfo.c:1361: undefined reference to `oe_cert_get_ec_public_key'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(tcbinfo.c.o): In function `_ecdsa_verify':
/source/openenclave/common/sgx/tcbinfo.c:1314: undefined reference to `oe_sha256_init'
/source/openenclave/common/sgx/tcbinfo.c:1315: undefined reference to `oe_sha256_update'
/source/openenclave/common/sgx/tcbinfo.c:1316: undefined reference to `oe_sha256_final'
/source/openenclave/common/sgx/tcbinfo.c:1318: undefined reference to `oe_ecdsa_signature_write_der'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(tcbinfo.c.o): In function `oe_verify_ecdsa256_signature':
/source/openenclave/common/sgx/tcbinfo.c:1367: undefined reference to `oe_ec_public_key_read_pem'
/source/openenclave/common/sgx/tcbinfo.c:1372: undefined reference to `oe_ec_public_key_equal'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(tcbinfo.c.o): In function `_ecdsa_verify':
/source/openenclave/common/sgx/tcbinfo.c:1326: undefined reference to `oe_ec_public_key_verify'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(verifier.c.o): In function `oe_verify_qve_report_and_identity':
/source/openenclave/enclave/sgx/verifier.c:215: undefined reference to `oe_sha256_init'
/source/openenclave/enclave/sgx/verifier.c:218: undefined reference to `oe_sha256_update'
/source/openenclave/enclave/sgx/verifier.c:224: undefined reference to `oe_sha256_update'
/source/openenclave/enclave/sgx/verifier.c:227: undefined reference to `oe_sha256_update'
/source/openenclave/enclave/sgx/verifier.c:231: undefined reference to `oe_sha256_update'
/source/openenclave/enclave/sgx/verifier.c:237: undefined reference to `oe_sha256_update'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(verifier.c.o):/source/openenclave/enclave/sgx/verifier.c:245: more undefined references to `oe_sha256_update' follow
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(verifier.c.o): In function `oe_verify_qve_report_and_identity':
/source/openenclave/enclave/sgx/verifier.c:250: undefined reference to `oe_sha256_final'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(sha.c.o): In function `oe_sha256':
/source/openenclave/common/sha.c:11: undefined reference to `oe_sha256_init'
/source/openenclave/common/sha.c:12: undefined reference to `oe_sha256_update'
/source/openenclave/common/sha.c:13: undefined reference to `oe_sha256_final'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(asym_keys.c.o): In function `_create_asymmetric_keypair':
/source/openenclave/enclave/asym_keys.c:129: undefined reference to `oe_kdf_derive_key'
/source/openenclave/enclave/asym_keys.c:145: undefined reference to `oe_ec_valid_raw_private_key'
/source/openenclave/enclave/asym_keys.c:151: undefined reference to `oe_kdf_derive_key'
/source/openenclave/enclave/asym_keys.c:162: undefined reference to `oe_ec_generate_key_pair_from_private'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(asym_keys.c.o): In function `_export_keypair':
/source/openenclave/enclave/asym_keys.c:191: undefined reference to `oe_ec_public_key_write_pem'
/source/openenclave/enclave/asym_keys.c:193: undefined reference to `oe_ec_private_key_write_pem'
/source/openenclave/enclave/asym_keys.c:207: undefined reference to `oe_ec_public_key_write_pem'
/source/openenclave/enclave/asym_keys.c:209: undefined reference to `oe_ec_private_key_write_pem'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(asym_keys.c.o): In function `_derive_asymmetric_key':
/source/openenclave/enclave/asym_keys.c:268: undefined reference to `oe_ec_private_key_free'
/source/openenclave/enclave/asym_keys.c:269: undefined reference to `oe_ec_public_key_free'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(endorsements.c.o): In function `oe_get_sgx_endorsements':
/source/openenclave/common/sgx/endorsements.c:402: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/endorsements.c:403: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/endorsements.c:404: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/endorsements.c:374: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/endorsements.c:378: undefined reference to `oe_cert_chain_get_cert'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboeenclave.a(qeidentity.c.o): In function `oe_validate_qe_identity':
/source/openenclave/common/sgx/qeidentity.c:62: undefined reference to `oe_cert_chain_read_pem'
/source/openenclave/common/sgx/qeidentity.c:213: undefined reference to `oe_cert_chain_free'
/source/openenclave/common/sgx/qeidentity.c:214: undefined reference to `oe_cert_free'
/source/openenclave/common/sgx/qeidentity.c:90: undefined reference to `oe_cert_chain_get_leaf_cert'
/source/openenclave/common/sgx/qeidentity.c:94: undefined reference to `oe_cert_get_validity_dates'
/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/liboecore.a(calls.c.o): In function `_handle_init_enclave':
/source/openenclave/enclave/core/sgx/calls.c:179: undefined reference to `oe_crypto_initialize'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:25: recipe for target 'build' failed
make: *** [build] Error 1

[ssahai]

It turns out that the mbedtls libraries were not being linked in the this command in the Makefile:

clang++-8 -o genquote_enclave attestation.o crypto.o ecalls.o dispatcher.o remoteattestation_t.o  -L/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave -nostdlib -nodefaultlibs -nostartfiles -Wl,--no-undefined -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--export-dynamic -Wl,-pie -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,now -Wl,-gc-sections -loeenclave -loelibcxx -loelibc -loesyscall -loecore

Adding the library flags: -loecryptombedtls -lmbedx509 -lmbedtls -lmbedcrypto solved majority of undefined references in the above error snapshot.

The final command that worked:

clang++-8 -o genquote_enclave attestation.o crypto.o ecalls.o dispatcher.o remoteattestation_t.o -L/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave -nostdlib -nodefaultlibs -nostartfiles -Wl,--no-undefined -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--export-dynamic -Wl,-pie -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,now -Wl,-gc-sections -loeenclave -loelibcxx -loelibc -loecryptombedtls -lmbedx509 -lmbedtls -lmbedcrypto -loecore -loesyscall

However, there is still an undefined reference to: 'time'. Executing the above command gives the following linker error:

/opt/openenclave/share/pkgconfig/../../lib/openenclave/enclave/libmbedx509.a(x509.c.o): In function `x509_get_current_time':
/source/openenclave/3rdparty/mbedtls/mbedtls/library/x509.c:935: undefined reference to `time'
/source/openenclave/3rdparty/mbedtls/mbedtls/library/x509.c:935: undefined reference to `time'
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[gkostal]

@ssahai - thank you for reporting and troubleshooting this issue! This issue was caused by changes to the OE SDK to support both mbedtls and openssl crypto libraries, forcing developers to specifically select one or the other.

The issue has been fixed (commit). I've tested on a fresh Azure VM running:

• the latest updates to Ubuntu 18.04
• the latest version of the Open Enclave SDK

If you have any other issues, don't hesitate to file another issue.