Scl function: Difference between revisions
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== Notes == | == Notes == | ||
* Identifier must be declared as a function designator with external linkage. | * Identifier must be declared as a function designator with external linkage. | ||
* A compilation error is reported if an attempt is made to capture a function more than once (with either scl_func or scl_function). | * A compilation error is reported if an attempt is made to capture a function more than once (with either [[scl_func]] or scl_function). | ||
== Example == | == Example == |
Revision as of 01:02, 20 March 2009
The scl_function pragma
The scl_function pragma allows the user to capture the function. All interfaces that STRIDE works with must be captured.
When captured for the purpose of interception (in which case the term intercept-able is used throught the documentation) optional arguments allow specification of how would it be done. The Instrument Build Tool will use those options to generate appropriate function interception code.
Syntax
#pragma scl_function(function-name [,context, name-mangling, group-id])
Parameters | Type | Description |
function-name | String | Name of the function to define (no quotes) |
context | String | Optional. Context in which the function is going to be intercepted. Possible values are "REFERENCE" - intercept at the function call or "DEFINITION" - intercept at the function definition. These attribute is equivalent to the formal User/Owner option that is in place for generating delegates. |
name-mangling | String | Optional. Type of name mangling to be used when intercepted. Possible values are "EXPLICIT" or "IMPLICIT". These attribute is equivalent to the formal Implicit/Explicit option that is in place for generating delegates. |
group-id | String | Optional. User defined identifier representing the group to which this function belongs when solving name mangling conflicts. These attribute is equivalent to the formal Group ID option that is in place for generating delegates. |
Notes
- Identifier must be declared as a function designator with external linkage.
- A compilation error is reported if an attempt is made to capture a function more than once (with either scl_func or scl_function).
Example
int f(int x);
void g(void);
#pragma scl_function(f)
#pragma scl_function(g, "DEFINITION", "IMPLICIT", "TEST_GROUP")