return bytecode_push(&ctx->bytecode, &insn, 1, sizeof(insn));
}
+static
+int visit_node_load_expression(struct filter_parser_ctx *ctx,
+ const struct ir_op *node)
+{
+ struct ir_load_expression *exp;
+ struct ir_load_expression_op *op;
+
+ exp = node->u.load.u.expression;
+ if (!exp) {
+ return -EINVAL;
+ }
+ op = exp->child;
+ if (!op) {
+ return -EINVAL;
+ }
+ for (; op != NULL; op = op->next) {
+ switch (op->type) {
+ case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op);
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_GET_CONTEXT_ROOT;
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ case IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op);
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_GET_APP_CONTEXT_ROOT;
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ case IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op);
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_GET_PAYLOAD_ROOT;
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ case IR_LOAD_EXPRESSION_GET_SYMBOL:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op)
+ + sizeof(struct get_symbol);
+ struct get_symbol symbol_offset;
+ uint32_t reloc_offset_u32;
+ uint16_t reloc_offset;
+ uint32_t bytecode_reloc_offset_u32;
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_GET_SYMBOL;
+ bytecode_reloc_offset_u32 =
+ bytecode_get_len(&ctx->bytecode_reloc->b)
+ + sizeof(reloc_offset);
+ symbol_offset.offset =
+ (uint16_t) bytecode_reloc_offset_u32;
+ memcpy(insn->data, &symbol_offset,
+ sizeof(symbol_offset));
+ /* reloc_offset points to struct load_op */
+ reloc_offset_u32 = bytecode_get_len(&ctx->bytecode->b);
+ if (reloc_offset_u32 > LTTNG_FILTER_MAX_LEN - 1) {
+ free(insn);
+ return -EINVAL;
+ }
+ reloc_offset = (uint16_t) reloc_offset_u32;
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ if (ret) {
+ free(insn);
+ return ret;
+ }
+ /* append reloc */
+ ret = bytecode_push(&ctx->bytecode_reloc, &reloc_offset,
+ 1, sizeof(reloc_offset));
+ if (ret) {
+ free(insn);
+ return ret;
+ }
+ ret = bytecode_push(&ctx->bytecode_reloc,
+ op->u.symbol,
+ 1, strlen(op->u.symbol) + 1);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ case IR_LOAD_EXPRESSION_GET_INDEX:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op)
+ + sizeof(struct get_index_u64);
+ struct get_index_u64 index;
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_GET_INDEX_U64;
+ index.index = op->u.index;
+ memcpy(insn->data, &index, sizeof(index));
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ case IR_LOAD_EXPRESSION_LOAD_FIELD:
+ {
+ struct load_op *insn;
+ uint32_t insn_len = sizeof(struct load_op);
+ int ret;
+
+ insn = calloc(insn_len, 1);
+ if (!insn)
+ return -ENOMEM;
+ insn->op = FILTER_OP_LOAD_FIELD;
+ ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
+ free(insn);
+ if (ret) {
+ return ret;
+ }
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
static
int visit_node_load(struct filter_parser_ctx *ctx, struct ir_op *node)
{
free(insn);
return ret;
}
- case IR_DATA_FIELD_REF: /* fall-through */
- case IR_DATA_GET_CONTEXT_REF:
- {
- struct load_op *insn;
- uint32_t insn_len = sizeof(struct load_op)
- + sizeof(struct field_ref);
- struct field_ref ref_offset;
- uint32_t reloc_offset_u32;
- uint16_t reloc_offset;
-
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- switch (node->data_type) {
- case IR_DATA_FIELD_REF:
- insn->op = FILTER_OP_LOAD_FIELD_REF;
- break;
- case IR_DATA_GET_CONTEXT_REF:
- insn->op = FILTER_OP_GET_CONTEXT_REF;
- break;
- default:
- free(insn);
- return -EINVAL;
- }
- ref_offset.offset = (uint16_t) -1U;
- memcpy(insn->data, &ref_offset, sizeof(ref_offset));
- /* reloc_offset points to struct load_op */
- reloc_offset_u32 = bytecode_get_len(&ctx->bytecode->b);
- if (reloc_offset_u32 > LTTNG_FILTER_MAX_LEN - 1) {
- free(insn);
- return -EINVAL;
- }
- reloc_offset = (uint16_t) reloc_offset_u32;
- ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
- if (ret) {
- free(insn);
- return ret;
- }
- /* append reloc */
- ret = bytecode_push(&ctx->bytecode_reloc, &reloc_offset,
- 1, sizeof(reloc_offset));
- if (ret) {
- free(insn);
- return ret;
- }
- ret = bytecode_push(&ctx->bytecode_reloc, node->u.load.u.ref,
- 1, strlen(node->u.load.u.ref) + 1);
- free(insn);
- return ret;
- }
- case IR_DATA_FIELD_REF_INDEX: /* fall-through */
- case IR_DATA_GET_CONTEXT_REF_INDEX:
- {
- struct load_op *insn;
- uint32_t insn_len = sizeof(struct load_op)
- + sizeof(struct field_ref_index);
- struct field_ref_index ref_index_offset;
- uint32_t reloc_offset_u32;
- uint16_t reloc_offset;
-
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- switch (node->data_type) {
- case IR_DATA_FIELD_REF_INDEX:
- insn->op = FILTER_OP_LOAD_FIELD_REF_INDEX;
- break;
- case IR_DATA_GET_CONTEXT_REF_INDEX:
- insn->op = FILTER_OP_GET_CONTEXT_REF_INDEX;
- break;
- default:
- free(insn);
- return -EINVAL;
- }
- ref_index_offset.offset = (uint16_t) -1U;
- ref_index_offset.index = node->u.load.u.ref_index.index;
- memcpy(insn->data, &ref_index_offset, sizeof(ref_index_offset));
- /* reloc_offset points to struct load_op */
- reloc_offset_u32 = bytecode_get_len(&ctx->bytecode->b);
- if (reloc_offset_u32 > LTTNG_FILTER_MAX_LEN - 1) {
- free(insn);
- return -EINVAL;
- }
- reloc_offset = (uint16_t) reloc_offset_u32;
- ret = bytecode_push(&ctx->bytecode, insn, 1, insn_len);
- if (ret) {
- free(insn);
- return ret;
- }
- /* append reloc */
- ret = bytecode_push(&ctx->bytecode_reloc, &reloc_offset,
- 1, sizeof(reloc_offset));
- if (ret) {
- free(insn);
- return ret;
- }
- ret = bytecode_push(&ctx->bytecode_reloc, node->u.load.u.ref_index.symbol,
- 1, strlen(node->u.load.u.ref_index.symbol) + 1);
- free(insn);
- return ret;
- }
+ case IR_DATA_EXPRESSION:
+ return visit_node_load_expression(ctx, node);
}
}
case AST_OP_LSHIFT:
insn.op = FILTER_OP_LSHIFT;
break;
- case AST_OP_BIN_AND:
- insn.op = FILTER_OP_BIN_AND;
+ case AST_OP_BIT_AND:
+ insn.op = FILTER_OP_BIT_AND;
break;
- case AST_OP_BIN_OR:
- insn.op = FILTER_OP_BIN_OR;
+ case AST_OP_BIT_OR:
+ insn.op = FILTER_OP_BIT_OR;
break;
- case AST_OP_BIN_XOR:
- insn.op = FILTER_OP_BIN_XOR;
+ case AST_OP_BIT_XOR:
+ insn.op = FILTER_OP_BIT_XOR;
break;
case AST_OP_EQ:
/* Cast to s64 if float or field ref */
if ((node->u.binary.left->data_type == IR_DATA_FIELD_REF
|| node->u.binary.left->data_type == IR_DATA_GET_CONTEXT_REF
- || node->u.binary.left->data_type == IR_DATA_FIELD_REF_INDEX
- || node->u.binary.left->data_type == IR_DATA_GET_CONTEXT_REF_INDEX)
+ || node->u.binary.left->data_type == IR_DATA_EXPRESSION)
|| node->u.binary.left->data_type == IR_DATA_FLOAT) {
struct cast_op cast_insn;
if (node->u.binary.left->data_type == IR_DATA_FIELD_REF
|| node->u.binary.left->data_type == IR_DATA_GET_CONTEXT_REF
- || node->u.binary.left->data_type == IR_DATA_FIELD_REF_INDEX
- || node->u.binary.left->data_type == IR_DATA_GET_CONTEXT_REF_INDEX) {
+ || node->u.binary.left->data_type == IR_DATA_EXPRESSION) {
cast_insn.op = FILTER_OP_CAST_TO_S64;
} else {
cast_insn.op = FILTER_OP_CAST_DOUBLE_TO_S64;
/* Cast to s64 if float or field ref */
if ((node->u.binary.right->data_type == IR_DATA_FIELD_REF
|| node->u.binary.right->data_type == IR_DATA_GET_CONTEXT_REF
- || node->u.binary.right->data_type == IR_DATA_FIELD_REF_INDEX
- || node->u.binary.right->data_type == IR_DATA_GET_CONTEXT_REF_INDEX)
+ || node->u.binary.right->data_type == IR_DATA_EXPRESSION)
|| node->u.binary.right->data_type == IR_DATA_FLOAT) {
struct cast_op cast_insn;
if (node->u.binary.right->data_type == IR_DATA_FIELD_REF
|| node->u.binary.right->data_type == IR_DATA_GET_CONTEXT_REF
- || node->u.binary.right->data_type == IR_DATA_FIELD_REF_INDEX
- || node->u.binary.right->data_type == IR_DATA_GET_CONTEXT_REF_INDEX) {
+ || node->u.binary.right->data_type == IR_DATA_EXPRESSION) {
cast_insn.op = FILTER_OP_CAST_TO_S64;
} else {
cast_insn.op = FILTER_OP_CAST_DOUBLE_TO_S64;
projects / lttng-tools.git / blobdiff