@@ -36,7 +36,13 @@
-- and logging purposes. For example, an exception handler can print out
-- the name of the source file in which the exception is handled.
-package GNAT.Source_Info is
+package GNAT.Source_Info with
+ SPARK_Mode,
+ Abstract_State =>
+ (Source_Code_Information with
+ External => (Async_Writers, Async_Readers)),
+ Annotate => (GNATprove, Always_Return)
+is
pragma Preelaborate;
-- Note that this unit is Preelaborate, but not Pure, that's because the
-- functions here such as Line are clearly not pure functions, and normally
@@ -47,6 +53,8 @@ package GNAT.Source_Info is
-- intrinsics as not Pure, even in Pure units, so no problems arose.
function File return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Return the name of the current file, not including the path information.
-- The result is considered to be a static string constant.
@@ -57,6 +65,8 @@ package GNAT.Source_Info is
-- static expression.
function Source_Location return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Return a string literal of the form "name:line", where name is the
-- current source file name without path information, and line is the
@@ -66,6 +76,8 @@ package GNAT.Source_Info is
-- string constant.
function Enclosing_Entity return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Return the name of the current subprogram, package, task, entry or
-- protected subprogram. The string is in exactly the form used for the
@@ -80,15 +92,21 @@ package GNAT.Source_Info is
-- from within generic templates.
function Compilation_ISO_Date return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Returns date of compilation as a static string "yyyy-mm-dd".
function Compilation_Date return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Returns date of compilation as a static string "mmm dd yyyy". This is
-- in local time form, and is exactly compatible with C macro __DATE__.
function Compilation_Time return String with
+ Volatile_Function,
+ Global => Source_Code_Information,
Import, Convention => Intrinsic;
-- Returns GMT time of compilation as a static string "hh:mm:ss". This is
-- in local time form, and is exactly compatible with C macro __TIME__.
From: Claire Dross <dross@adacore.com> So it can be used safely from SPARK code. The abstract state represents the source code information that is accessed by the functions defined in Source_Info. It is volatile as it is updated asyncronously when moving in the code. gcc/ada/ * libgnat/g-souinf.ads (Source_Code_Information): Add a new volatile abstract state and add it in the global contract of all functions defined in Source_Info. Tested on x86_64-pc-linux-gnu, committed on master. --- gcc/ada/libgnat/g-souinf.ads | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)