diff options
Diffstat (limited to 'lib/libutee/arch/arm/gprof/gprof_pta.c')
-rw-r--r-- | lib/libutee/arch/arm/gprof/gprof_pta.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/libutee/arch/arm/gprof/gprof_pta.c b/lib/libutee/arch/arm/gprof/gprof_pta.c new file mode 100644 index 0000000..7f54e8f --- /dev/null +++ b/lib/libutee/arch/arm/gprof/gprof_pta.c @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2016, Linaro Limited + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <pta_gprof.h> +#include <string.h> +#include <tee_api.h> +#include "gprof_pta.h" + +static TEE_TASessionHandle sess = TEE_HANDLE_NULL; + +static TEE_Result invoke_gprof_pta(uint32_t cmd_id, uint32_t param_types, + TEE_Param params[TEE_NUM_PARAMS]) +{ + static const TEE_UUID core_uuid = PTA_GPROF_UUID; + TEE_Result res; + + if (!sess) { + res = TEE_OpenTASession(&core_uuid, 0, 0, NULL, &sess, NULL); + if (res != TEE_SUCCESS) + return res; + } + res = TEE_InvokeTACommand(sess, 0, cmd_id, param_types, params, NULL); + return res; +} + +TEE_Result __pta_gprof_send(void *buf, size_t len, uint32_t *id) +{ + TEE_Param params[TEE_NUM_PARAMS]; + uint32_t param_types; + TEE_Result res; + + param_types = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INOUT, + TEE_PARAM_TYPE_MEMREF_INPUT, + TEE_PARAM_TYPE_NONE, + TEE_PARAM_TYPE_NONE); + memset(params, 0, sizeof(params)); + params[0].value.a = *id; + params[1].memref.buffer = buf; + params[1].memref.size = len; + res = invoke_gprof_pta(PTA_GPROF_SEND, param_types, params); + if (res == TEE_SUCCESS) + *id = params[0].value.a; + return res; +} + +TEE_Result __pta_gprof_pc_sampling_start(void *buf, size_t len, size_t offset, + size_t scale) +{ + TEE_Param params[TEE_NUM_PARAMS]; + uint32_t param_types; + + param_types = TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INOUT, + TEE_PARAM_TYPE_VALUE_INPUT, + TEE_PARAM_TYPE_NONE, + TEE_PARAM_TYPE_NONE); + memset(params, 0, sizeof(params)); + params[0].memref.buffer = buf; + params[0].memref.size = len; + params[1].value.a = offset; + params[1].value.b = scale; + return invoke_gprof_pta(PTA_GPROF_START_PC_SAMPLING, param_types, + params); +} + +TEE_Result __pta_gprof_pc_sampling_stop(uint32_t *rate) +{ + TEE_Param params[TEE_NUM_PARAMS]; + uint32_t param_types; + TEE_Result res; + + param_types = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_OUTPUT, + TEE_PARAM_TYPE_NONE, + TEE_PARAM_TYPE_NONE, + TEE_PARAM_TYPE_NONE); + memset(params, 0, sizeof(params)); + res = invoke_gprof_pta(PTA_GPROF_STOP_PC_SAMPLING, param_types, + params); + if (res != TEE_SUCCESS) + return res; + if (rate) + *rate = params[0].value.a; + return res; +} + +void __pta_gprof_fini(void) +{ + if (sess) + TEE_CloseTASession(sess); +} |