switch (op->type) {
case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT:
{
- struct load_op *insn;
- uint32_t insn_len = sizeof(struct load_op);
- int ret;
+ ret = bytecode_push_get_context_root(&ctx->bytecode);
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- insn->op = BYTECODE_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;
+ ret = bytecode_push_get_app_context_root(
+ &ctx->bytecode);
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- insn->op = BYTECODE_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;
+ ret = bytecode_push_get_payload_root(&ctx->bytecode);
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- insn->op = BYTECODE_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;
+ ret = bytecode_push_get_symbol(&ctx->bytecode,
+ &ctx->bytecode_reloc, op->u.symbol);
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- insn->op = BYTECODE_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;
+ ret = bytecode_push_get_index_u64(
+ &ctx->bytecode, op->u.index);
- insn = calloc(insn_len, 1);
- if (!insn)
- return -ENOMEM;
- insn->op = BYTECODE_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)
}
}
-LTTNG_HIDDEN
void filter_bytecode_free(struct filter_parser_ctx *ctx)
{
if (!ctx) {
}
}
-LTTNG_HIDDEN
int filter_visitor_bytecode_generate(struct filter_parser_ctx *ctx)
{
int ret;