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([80.215.174.11]) by smtp.gmail.com with ESMTPSA id 84sm4039638wme.43.2019.03.21.04.00.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 21 Mar 2019 04:00:13 -0700 (PDT) From: Etienne Carriere To: buildroot@buildroot.org Date: Thu, 21 Mar 2019 12:00:00 +0100 Message-Id: <1553166000-13510-1-git-send-email-etienne.carriere@linaro.org> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Subject: [Buildroot] [PATCH v3] package/optee-client: fix build warnings from 3.4.0 X-BeenThere: buildroot@busybox.net X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Etienne Carriere Errors-To: buildroot-bounces@busybox.net Sender: "buildroot" Add a patch over current optee-client 3.4.0 to fix build issues reported by some toolchains with traces like: /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function 'TEEC_InitializeContext': /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c:149:28: error: 'gen_caps' may be used uninitialized in this function [-Werror=maybe-uninitialized] ctx->reg_mem = gen_caps & TEE_GEN_CAP_REG_MEM; ^ /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function ‘TEEC_OpenSession’: /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c:507:8: error: cast increases required alignment of target type [-Werror=cast-align] arg = (struct tee_ioctl_open_session_arg *)buf; ^ /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function ‘TEEC_InvokeCommand’: /path/to/build/optee-client-3.4.0/libteec/src/tee_client_api.c:581:8: error: cast increases required alignment of target type [-Werror=cast-align] arg = (struct tee_ioctl_invoke_arg *)buf; The optee-client patch is under review in the OP-TEE project [1] and should be merged in the next OP-TEE release 3.5.0. Fixes [2], [3], [4] and other failing builds reported by autobuild tests. [1] https://github.com/OP-TEE/optee_client/pull/146 [2] http://autobuild.buildroot.net/results/80e78cb0bb955e912d6cbe5b30c9b024e7efc802 [3] http://autobuild.buildroot.net/results/a42c19897d03beb02fde2e7e6da25532be27d5ca [4] http://autobuild.buildroot.net/results/827087f91b7481d1c3effd615172bbee86317962 Signed-off-by: Etienne Carriere --- Changes v2 -> v3: - Update patch from [1] outcome Changes v1 -> v2: - Updated commit comment with traces of the build issues that are fixed. Signed-off-by: Etienne Carriere --- .../0001-libteec-fix-build-warnings.patch | 127 +++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 package/optee-client/0001-libteec-fix-build-warnings.patch diff --git a/package/optee-client/0001-libteec-fix-build-warnings.patch b/package/optee-client/0001-libteec-fix-build-warnings.patch new file mode 100644 index 0000000..9b9f0cc --- /dev/null +++ b/package/optee-client/0001-libteec-fix-build-warnings.patch @@ -0,0 +1,127 @@ +From 9dbc61b3767ab1c3dfd0a19af02926b92ae09247 Mon Sep 17 00:00:00 2001 +From: Etienne Carriere +Date: Wed, 20 Mar 2019 10:01:23 +0100 +Subject: [PATCH] libteec: fix build warnings +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Fix build warnings reported by the Buildroot team [1]: + +/home/thomas/projets/outputs/armv5-ctng-linux-gnueabi/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function 'TEEC_InitializeContext': +/home/thomas/projets/outputs/armv5-ctng-linux-gnueabi/build/optee-client-3.4.0/libteec/src/tee_client_api.c:149:28: error: 'gen_caps' may be used uninitialized in this function [-Werror=maybe-uninitialized] + ctx->reg_mem = gen_caps & TEE_GEN_CAP_REG_MEM; + ^ +/home/thomas/projets/buildroot/output/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function ‘TEEC_OpenSession’: +/home/thomas/projets/buildroot/output/build/optee-client-3.4.0/libteec/src/tee_client_api.c:507:8: error: cast increases required alignment of target type [-Werror=cast-align] + arg = (struct tee_ioctl_open_session_arg *)buf; + ^ +/home/thomas/projets/buildroot/output/build/optee-client-3.4.0/libteec/src/tee_client_api.c: In function ‘TEEC_InvokeCommand’: +/home/thomas/projets/buildroot/output/build/optee-client-3.4.0/libteec/src/tee_client_api.c:581:8: error: cast increases required alignment of target type [-Werror=cast-align] + arg = (struct tee_ioctl_invoke_arg *)buf; + ^ + +[1] http://lists.busybox.net/pipermail/buildroot/2019-February/243437.html + +Reported-by: Thomas Petazzoni +Signed-off-by: Etienne Carriere +Tested-by: Jerome Forissier (HiKey960 32, 64) +Reviewed-by: Jens Wiklander +--- + libteec/src/tee_client_api.c | 34 +++++++++++++++++++++------------- + 1 file changed, 21 insertions(+), 13 deletions(-) + +diff --git a/libteec/src/tee_client_api.c b/libteec/src/tee_client_api.c +index 698092b..cf0b1f7 100644 +--- a/libteec/src/tee_client_api.c ++++ b/libteec/src/tee_client_api.c +@@ -140,7 +140,7 @@ TEEC_Result TEEC_InitializeContext(const char *name, TEEC_Context *ctx) + return TEEC_ERROR_BAD_PARAMETERS; + + for (n = 0; n < TEEC_MAX_DEV_SEQ; n++) { +- uint32_t gen_caps; ++ uint32_t gen_caps = 0; + + snprintf(devname, sizeof(devname), "/dev/tee%zu", n); + fd = teec_open_dev(devname, name, &gen_caps); +@@ -481,10 +481,12 @@ TEEC_Result TEEC_OpenSession(TEEC_Context *ctx, TEEC_Session *session, + uint32_t connection_method, const void *connection_data, + TEEC_Operation *operation, uint32_t *ret_origin) + { +- uint64_t buf[(sizeof(struct tee_ioctl_open_session_arg) + +- TEEC_CONFIG_PAYLOAD_REF_COUNT * +- sizeof(struct tee_ioctl_param)) / +- sizeof(uint64_t)] = { 0 }; ++ size_t p_sz = TEEC_CONFIG_PAYLOAD_REF_COUNT * ++ sizeof(struct tee_ioctl_param); ++ union { ++ struct tee_ioctl_open_session_arg arg; ++ uint8_t data[sizeof(struct tee_ioctl_open_session_arg) + p_sz]; ++ } buf; + struct tee_ioctl_buf_data buf_data; + struct tee_ioctl_open_session_arg *arg; + struct tee_ioctl_param *params; +@@ -493,6 +495,8 @@ TEEC_Result TEEC_OpenSession(TEEC_Context *ctx, TEEC_Session *session, + TEEC_SharedMemory shm[TEEC_CONFIG_PAYLOAD_REF_COUNT]; + int rc; + ++ memset(&buf, 0, sizeof(buf)); ++ + (void)&connection_data; + + if (!ctx || !session) { +@@ -501,10 +505,10 @@ TEEC_Result TEEC_OpenSession(TEEC_Context *ctx, TEEC_Session *session, + goto out; + } + +- buf_data.buf_ptr = (uintptr_t)buf; ++ buf_data.buf_ptr = (uintptr_t)&buf; + buf_data.buf_len = sizeof(buf); + +- arg = (struct tee_ioctl_open_session_arg *)buf; ++ arg = &buf.arg; + arg->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT; + params = (struct tee_ioctl_param *)(arg + 1); + +@@ -555,10 +559,12 @@ void TEEC_CloseSession(TEEC_Session *session) + TEEC_Result TEEC_InvokeCommand(TEEC_Session *session, uint32_t cmd_id, + TEEC_Operation *operation, uint32_t *error_origin) + { +- uint64_t buf[(sizeof(struct tee_ioctl_invoke_arg) + +- TEEC_CONFIG_PAYLOAD_REF_COUNT * +- sizeof(struct tee_ioctl_param)) / +- sizeof(uint64_t)] = { 0 }; ++ size_t p_sz = TEEC_CONFIG_PAYLOAD_REF_COUNT * ++ sizeof(struct tee_ioctl_param); ++ union { ++ struct tee_ioctl_invoke_arg arg; ++ uint8_t data[sizeof(struct tee_ioctl_invoke_arg) + p_sz]; ++ } buf; + struct tee_ioctl_buf_data buf_data; + struct tee_ioctl_invoke_arg *arg; + struct tee_ioctl_param *params; +@@ -567,6 +573,8 @@ TEEC_Result TEEC_InvokeCommand(TEEC_Session *session, uint32_t cmd_id, + TEEC_SharedMemory shm[TEEC_CONFIG_PAYLOAD_REF_COUNT]; + int rc; + ++ memset(&buf, 0, sizeof(buf)); ++ + if (!session) { + eorig = TEEC_ORIGIN_API; + res = TEEC_ERROR_BAD_PARAMETERS; +@@ -575,10 +583,10 @@ TEEC_Result TEEC_InvokeCommand(TEEC_Session *session, uint32_t cmd_id, + + bm_timestamp(); + +- buf_data.buf_ptr = (uintptr_t)buf; ++ buf_data.buf_ptr = (uintptr_t)&buf; + buf_data.buf_len = sizeof(buf); + +- arg = (struct tee_ioctl_invoke_arg *)buf; ++ arg = &buf.arg; + arg->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT; + params = (struct tee_ioctl_param *)(arg + 1); + +-- +1.9.1 +