+static
+void callsite_free(gpointer data)
+{
+ struct ctf_callsite_dups *cs_dups = data;
+ struct ctf_callsite *callsite, *cs_n;
+
+ bt_list_for_each_entry_safe(callsite, cs_n, &cs_dups->head, node) {
+ g_free(callsite->func);
+ g_free(callsite->file);
+ g_free(callsite);
+ }
+ g_free(cs_dups);
+}
+
+static
+int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
+ struct ctf_trace *trace)
+{
+ int ret = 0;
+ struct ctf_tracer_env *env = &trace->env;
+
+ switch (node->type) {
+ case NODE_CTF_EXPRESSION:
+ {
+ char *left;
+
+ left = concatenate_unary_strings(&node->u.ctf_expression.left);
+ if (!strcmp(left, "vpid")) {
+ uint64_t v;
+
+ if (env->vpid != -1) {
+ fprintf(fd, "[error] %s: vpid already declared in env declaration\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &v);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for env vpid\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ env->vpid = (int) v;
+ printf_verbose("env.vpid = %d\n", env->vpid);
+ } else if (!strcmp(left, "procname")) {
+ char *right;
+
+ if (env->procname[0]) {
+ fprintf(fd, "[warning] %s: duplicated env procname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env procname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->procname, right, TRACER_ENV_LEN);
+ env->procname[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.procname = \"%s\"\n", env->procname);
+ g_free(right);
+ } else if (!strcmp(left, "hostname")) {
+ char *right;
+
+ if (env->hostname[0]) {
+ fprintf(fd, "[warning] %s: duplicated env hostname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env hostname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->hostname, right, TRACER_ENV_LEN);
+ env->hostname[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.hostname = \"%s\"\n", env->hostname);
+ g_free(right);
+ } else if (!strcmp(left, "domain")) {
+ char *right;
+
+ if (env->domain[0]) {
+ fprintf(fd, "[warning] %s: duplicated env domain\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env domain\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->domain, right, TRACER_ENV_LEN);
+ env->domain[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.domain = \"%s\"\n", env->domain);
+ g_free(right);
+ } else if (!strcmp(left, "sysname")) {
+ char *right;
+
+ if (env->sysname[0]) {
+ fprintf(fd, "[warning] %s: duplicated env sysname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env sysname\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->sysname, right, TRACER_ENV_LEN);
+ env->sysname[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.sysname = \"%s\"\n", env->sysname);
+ g_free(right);
+ } else if (!strcmp(left, "kernel_release")) {
+ char *right;
+
+ if (env->release[0]) {
+ fprintf(fd, "[warning] %s: duplicated env release\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env release\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->release, right, TRACER_ENV_LEN);
+ env->release[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.release = \"%s\"\n", env->release);
+ g_free(right);
+ } else if (!strcmp(left, "kernel_version")) {
+ char *right;
+
+ if (env->version[0]) {
+ fprintf(fd, "[warning] %s: duplicated env version\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for env version\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ strncpy(env->version, right, TRACER_ENV_LEN);
+ env->version[TRACER_ENV_LEN - 1] = '\0';
+ printf_verbose("env.version = \"%s\"\n", env->version);
+ g_free(right);
+ } else {
+ if (is_unary_string(&node->u.ctf_expression.right)) {
+ char *right;
+
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ printf_verbose("env.%s = \"%s\"\n", left, right);
+ g_free(right);
+ } else if (is_unary_unsigned(&node->u.ctf_expression.right)) {
+ uint64_t v;
+ int ret;
+
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &v);
+ assert(ret == 0);
+ printf_verbose("env.%s = %" PRIu64 "\n", left, v);
+ } else if (is_unary_signed(&node->u.ctf_expression.right)) {
+ int64_t v;
+ int ret;
+
+ ret = get_unary_signed(&node->u.ctf_expression.right, &v);
+ assert(ret == 0);
+ printf_verbose("env.%s = %" PRId64 "\n", left, v);
+ } else {
+ printf_verbose("%s: attribute \"%s\" has unknown type.\n", __func__, left);
+ }
+ }
+
+error:
+ g_free(left);
+ break;
+ }
+ default:
+ return -EPERM;
+ }
+
+ return ret;
+}
+
+static
+int ctf_env_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace)