wrapper: trace-clock: remove kernel version blacklist
[lttng-modules.git] / lttng-filter-interpreter.c
index bf69549707657ed89fd524f35b74ecb0fc7dcea7..671f8b8a7dc45769edfaabb68b3d3fec4613b1af 100644 (file)
@@ -8,14 +8,14 @@
  */
 
 #include <linux/uaccess.h>
-#include <wrapper/frame.h>
-#include <wrapper/types.h>
+#include <linux/frame.h>
+#include <linux/limits.h>
 #include <linux/swab.h>
 
 #include <lttng-filter.h>
 #include <lttng-string-utils.h>
 
-LTTNG_STACK_FRAME_NON_STANDARD(lttng_filter_interpret_bytecode);
+STACK_FRAME_NON_STANDARD(lttng_filter_interpret_bytecode);
 
 /*
  * get_char should be called with page fault handler disabled if it is expected
@@ -30,8 +30,7 @@ char get_char(struct estack_entry *reg, size_t offset)
                char c;
 
                /* Handle invalid access as end of string. */
-               if (unlikely(!access_ok(VERIFY_READ,
-                               reg->u.s.user_str + offset,
+               if (unlikely(!access_ok(reg->u.s.user_str + offset,
                                sizeof(c))))
                        return '\0';
                /* Handle fault (nonzero return value) as end of string. */
@@ -288,7 +287,7 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
        switch (field->type.atype) {
        case atype_integer:
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
-               if (field->type.u.basic.integer.signedness) {
+               if (field->type.u.integer.signedness) {
                        ptr->object_type = OBJECT_TYPE_S64;
                        ptr->u.s64 = v.s64;
                        ptr->ptr = &ptr->u.s64;
@@ -298,10 +297,10 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                        ptr->ptr = &ptr->u.u64;
                }
                break;
-       case atype_enum:
+       case atype_enum_nestable:
        {
                const struct lttng_integer_type *itype =
-                       &field->type.u.basic.enumeration.container_type;
+                       &field->type.u.enum_nestable.container_type->u.integer;
 
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                if (itype->signedness) {
@@ -315,12 +314,12 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                }
                break;
        }
-       case atype_array:
-               if (field->type.u.array.elem_type.atype != atype_integer) {
+       case atype_array_nestable:
+               if (!lttng_is_bytewise_integer(field->type.u.array_nestable.elem_type)) {
                        printk(KERN_WARNING "Array nesting only supports integer types.\n");
                        return -EINVAL;
                }
-               if (field->type.u.array.elem_type.u.basic.integer.encoding == lttng_encode_none) {
+               if (field->type.u.array_nestable.elem_type->u.integer.encoding == lttng_encode_none) {
                        printk(KERN_WARNING "Only string arrays are supported for contexts.\n");
                        return -EINVAL;
                }
@@ -328,12 +327,12 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_sequence:
-               if (field->type.u.sequence.elem_type.atype != atype_integer) {
+       case atype_sequence_nestable:
+               if (!lttng_is_bytewise_integer(field->type.u.sequence_nestable.elem_type)) {
                        printk(KERN_WARNING "Sequence nesting only supports integer types.\n");
                        return -EINVAL;
                }
-               if (field->type.u.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) {
+               if (field->type.u.sequence_nestable.elem_type->u.integer.encoding == lttng_encode_none) {
                        printk(KERN_WARNING "Only string sequences are supported for contexts.\n");
                        return -EINVAL;
                }
@@ -341,20 +340,17 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_array_bitfield:
-               printk(KERN_WARNING "Bitfield array type is not supported.\n");
-               return -EINVAL;
-       case atype_sequence_bitfield:
-               printk(KERN_WARNING "Bitfield sequence type is not supported.\n");
-               return -EINVAL;
        case atype_string:
                ptr->object_type = OBJECT_TYPE_STRING;
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_struct:
+       case atype_struct_nestable:
                printk(KERN_WARNING "Structure type cannot be loaded.\n");
                return -EINVAL;
+       case atype_variant_nestable:
+               printk(KERN_WARNING "Variant type cannot be loaded.\n");
+               return -EINVAL;
        default:
                printk(KERN_WARNING "Unknown type: %d", (int) field->type.atype);
                return -EINVAL;
@@ -555,7 +551,7 @@ static int dynamic_load_field(struct estack_entry *stack_top)
                        ret = -EINVAL;
                        goto end;
                }
-               stack_top->u.s.seq_len = LTTNG_SIZE_MAX;
+               stack_top->u.s.seq_len = SIZE_MAX;
                stack_top->u.s.literal_type =
                        ESTACK_STRING_LITERAL_TYPE_NONE;
                break;
@@ -1132,7 +1128,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                                ret = -EINVAL;
                                goto end;
                        }
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_NONE;
                        estack_ax(stack, top)->u.s.user = 0;
@@ -1196,7 +1192,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                        dbg_printk("load string %s\n", insn->data);
                        estack_push(stack, top, ax, bx);
                        estack_ax(stack, top)->u.s.str = insn->data;
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_PLAIN;
                        estack_ax(stack, top)->u.s.user = 0;
@@ -1211,7 +1207,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                        dbg_printk("load globbing pattern %s\n", insn->data);
                        estack_push(stack, top, ax, bx);
                        estack_ax(stack, top)->u.s.str = insn->data;
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_STAR_GLOB;
                        estack_ax(stack, top)->u.s.user = 0;
@@ -1276,7 +1272,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                                ret = -EINVAL;
                                goto end;
                        }
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_NONE;
                        estack_ax(stack, top)->u.s.user = 0;
@@ -1326,7 +1322,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                                ret = -EINVAL;
                                goto end;
                        }
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_NONE;
                        estack_ax(stack, top)->u.s.user = 1;
@@ -1542,7 +1538,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                                ret = -EINVAL;
                                goto end;
                        }
-                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_NONE;
                        next_pc += sizeof(struct load_op);
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