/* based used for pretty-printing output, default: decimal. */
base = decimal OR dec OR OR d OR i OR u OR 10 OR hexadecimal OR hex OR x OR X OR p OR 16
OR octal OR oct OR o OR 8 OR binary OR b OR 2;
+ /* character encoding, default: none */
+ encoding = none or UTF8 or ASCII;
}
Example of type inheritance (creation of a uint32_t named type):
align = 1;
} := int5_t;
+The character encoding field can be used to specify that the integer
+must be printed as a text character when read. e.g.:
+
+typealias integer {
+ size = 8;
+ align = 8;
+ signed = false;
+ encoding = UTF8;
+} := utf_char;
+
+
4.1.6 GNU/C bitfields
The GNU/C bitfields follow closely the integer representation, with a
TSDL meta-data representation:
- unit_type name:size:
+ unit_type name:size;
As an example, the following structure declared in C compiled by GCC:
uint64_t timestamp; /* 64-bit timestamps */
} extended;
} v;
-};
+} align(32); /* or align(8) */
6.1.2 Type 2 - Many event IDs
uint64_t timestamp; /* 64-bit timestamps */
} extended;
} v;
-};
+} align(16); /* or align(8) */
6.2 Event Context
and its counterpart in reversed endianness. The events within the
meta-data stream have no event header nor event context. Each event only
contains a "sequence" payload, which is a sequence of bits using the
-"trace.packet.header.content_size" field as a placeholder for its
-length. The formatting of this sequence of bits is a plain-text
-representation of the TSDL description. Each meta-data packet start with
-a special packet header, specific to the meta-data stream, which
-contains, exactly:
+"trace.packet.header.content_size" field as a placeholder for its length
+(the packet header size should be substracted). The formatting of this
+sequence of bits is a plain-text representation of the TSDL description.
+Each meta-data packet start with a special packet header, specific to
+the meta-data stream, which contains, exactly:
struct metadata_packet_header {
uint32_t magic; /* 0x75D11D57 */
struct-or-variant-declaration:
specifier-qualifier-list struct-or-variant-declarator-list ;
declaration-specifiers-opt storage-class-specifier declaration-specifiers-opt declarator-list ;
- typealias declaration-specifiers abstract-declarator-list := declaration-specifiers abstract-declarator-list ;
- typealias declaration-specifiers abstract-declarator-list := declarator-list ;
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declaration-specifiers abstract-declarator-list ;
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declarator-list ;
specifier-qualifier-list:
type-specifier specifier-qualifier-list-opt
enumerator:
enumeration-constant
- enumeration-constant = unary-expression
- enumeration-constant = constant-expression-range
+ enumeration-constant assignment-operator unary-expression
+ enumeration-constant assignment-operator constant-expression-range
type-qualifier:
const
event { ctf-assignment-expression-list-opt }
stream { ctf-assignment-expression-list-opt }
trace { ctf-assignment-expression-list-opt }
- typealias declaration-specifiers abstract-declarator-list := declaration-specifiers abstract-declarator-list ;
- typealias declaration-specifiers abstract-declarator-list := declarator-list ;
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declaration-specifiers abstract-declarator-list
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declarator-list
ctf-type-specifier:
floating_point { ctf-assignment-expression-list-opt }
integer { ctf-assignment-expression-list-opt }
string { ctf-assignment-expression-list-opt }
+ string
ctf-assignment-expression-list:
- ctf-assignment-expression
- ctf-assignment-expression-list ; ctf-assignment-expression
+ ctf-assignment-expression ;
+ ctf-assignment-expression-list ctf-assignment-expression ;
ctf-assignment-expression:
unary-expression assignment-operator unary-expression
unary-expression type-assignment-operator type-specifier
declaration-specifiers-opt storage-class-specifier declaration-specifiers-opt declarator-list
- typealias declaration-specifiers abstract-declarator-list := declaration-specifiers abstract-declarator-list
- typealias declaration-specifiers abstract-declarator-list := declarator-list
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declaration-specifiers abstract-declarator-list
+ typealias declaration-specifiers abstract-declarator-list type-assignment-operator declarator-list