Performance: define _LGPL_SOURCE in LGPL c files

[lttng-ust.git] / liblttng-ust / lttng-filter-specialize.c

diff --git a/liblttng-ust/lttng-filter-specialize.c b/liblttng-ust/lttng-filter-specialize.c
index b422f50863a5f4608405c5c41ca5ed32faf1f61f..d115585d8c9a1cc85b482a72bf981e5cad031ffa 100644 (file)
--- a/liblttng-ust/lttng-filter-specialize.c
+++ b/liblttng-ust/lttng-filter-specialize.c
@@ -20,6 +20,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#define _LGPL_SOURCE
 #include "lttng-filter.h"
 
 int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
@@ -73,20 +74,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_EQ_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_EQ_S64;
                                else
                                        insn->op = FILTER_OP_EQ_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_EQ_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_EQ_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        /* Pop 2, push 1 */
                        if (vstack_pop(stack)) {
@@ -109,20 +118,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_NE_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_NE_S64;
                                else
                                        insn->op = FILTER_OP_NE_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_NE_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_NE_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        /* Pop 2, push 1 */
                        if (vstack_pop(stack)) {
@@ -145,20 +162,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_GT_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_GT_S64;
                                else
                                        insn->op = FILTER_OP_GT_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_GT_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_GT_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        /* Pop 2, push 1 */
                        if (vstack_pop(stack)) {
@@ -181,20 +206,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_LT_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_LT_S64;
                                else
                                        insn->op = FILTER_OP_LT_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_LT_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_LT_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        /* Pop 2, push 1 */
                        if (vstack_pop(stack)) {
@@ -217,20 +250,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_GE_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_GE_S64;
                                else
                                        insn->op = FILTER_OP_GE_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_GE_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_GE_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        /* Pop 2, push 1 */
                        if (vstack_pop(stack)) {
@@ -252,20 +293,28 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                                goto end;
 
                        case REG_STRING:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                insn->op = FILTER_OP_LE_STRING;
                                break;
                        case REG_S64:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_LE_S64;
                                else
                                        insn->op = FILTER_OP_LE_DOUBLE_S64;
                                break;
                        case REG_DOUBLE:
+                               if (vstack_bx(stack)->type == REG_UNKNOWN)
+                                       break;
                                if (vstack_bx(stack)->type == REG_S64)
                                        insn->op = FILTER_OP_LE_S64_DOUBLE;
                                else
                                        insn->op = FILTER_OP_LE_DOUBLE;
                                break;
+                       case REG_UNKNOWN:
+                               break;  /* Dynamic typing. */
                        }
                        vstack_ax(stack)->type = REG_S64;
                        next_pc += sizeof(struct binary_op);
@@ -330,6 +379,8 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        case REG_DOUBLE:
                                insn->op = FILTER_OP_UNARY_PLUS_DOUBLE;
                                break;
+                       case REG_UNKNOWN:       /* Dynamic typing. */
+                               break;
                        }
                        /* Pop 1, push 1 */
                        next_pc += sizeof(struct unary_op);
@@ -352,6 +403,8 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        case REG_DOUBLE:
                                insn->op = FILTER_OP_UNARY_MINUS_DOUBLE;
                                break;
+                       case REG_UNKNOWN:       /* Dynamic typing. */
+                               break;
                        }
                        /* Pop 1, push 1 */
                        next_pc += sizeof(struct unary_op);
@@ -374,6 +427,8 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        case REG_DOUBLE:
                                insn->op = FILTER_OP_UNARY_NOT_DOUBLE;
                                break;
+                       case REG_UNKNOWN:       /* Dynamic typing. */
+                               break;
                        }
                        /* Pop 1, push 1 */
                        next_pc += sizeof(struct unary_op);
@@ -396,19 +451,37 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                case FILTER_OP_AND:
                case FILTER_OP_OR:
                {
+                       /* Continue to next instruction */
+                       /* Pop 1 when jump not taken */
+                       if (vstack_pop(stack)) {
+                               ret = -EINVAL;
+                               goto end;
+                       }
                        next_pc += sizeof(struct logical_op);
                        break;
                }
 
-               /* load */
+               /* load field ref */
                case FILTER_OP_LOAD_FIELD_REF:
                {
                        ERR("Unknown field ref type\n");
                        ret = -EINVAL;
                        goto end;
                }
+               /* get context ref */
+               case FILTER_OP_GET_CONTEXT_REF:
+               {
+                       if (vstack_push(stack)) {
+                               ret = -EINVAL;
+                               goto end;
+                       }
+                       vstack_ax(stack)->type = REG_UNKNOWN;
+                       next_pc += sizeof(struct load_op) + sizeof(struct field_ref);
+                       break;
+               }
                case FILTER_OP_LOAD_FIELD_REF_STRING:
                case FILTER_OP_LOAD_FIELD_REF_SEQUENCE:
+               case FILTER_OP_GET_CONTEXT_REF_STRING:
                {
                        if (vstack_push(stack)) {
                                ret = -EINVAL;
@@ -419,6 +492,7 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        break;
                }
                case FILTER_OP_LOAD_FIELD_REF_S64:
+               case FILTER_OP_GET_CONTEXT_REF_S64:
                {
                        if (vstack_push(stack)) {
                                ret = -EINVAL;
@@ -429,6 +503,7 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        break;
                }
                case FILTER_OP_LOAD_FIELD_REF_DOUBLE:
+               case FILTER_OP_GET_CONTEXT_REF_DOUBLE:
                {
                        if (vstack_push(stack)) {
                                ret = -EINVAL;
@@ -439,6 +514,7 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        break;
                }
 
+               /* load from immediate operand */
                case FILTER_OP_LOAD_STRING:
                {
                        struct load_op *insn = (struct load_op *) pc;
@@ -497,6 +573,8 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        case REG_DOUBLE:
                                insn->op = FILTER_OP_CAST_DOUBLE_TO_S64;
                                break;
+                       case REG_UNKNOWN:
+                               break;
                        }
                        /* Pop 1, push 1 */
                        vstack_ax(stack)->type = REG_S64;
@@ -516,7 +594,6 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode)
                        break;
                }
 
-
                }
        }
 end: