diff options
Diffstat (limited to 'gcc/ada/gnat_rm.texi')
| -rw-r--r-- | gcc/ada/gnat_rm.texi | 61 |
1 files changed, 8 insertions, 53 deletions
diff --git a/gcc/ada/gnat_rm.texi b/gcc/ada/gnat_rm.texi index 05f79b8..24db2f2 100644 --- a/gcc/ada/gnat_rm.texi +++ b/gcc/ada/gnat_rm.texi @@ -2883,13 +2883,7 @@ MECHANISM ::= MECHANISM_ASSOCIATION ::= [formal_parameter_NAME =>] MECHANISM_NAME -MECHANISM_NAME ::= - Value -| Reference -| Descriptor [([Class =>] CLASS_NAME)] -| Short_Descriptor [([Class =>] CLASS_NAME)] - -CLASS_NAME ::= ubs | ubsb | uba | s | sb | a +MECHANISM_NAME ::= Value | Reference @end smallexample @noindent @@ -2917,13 +2911,6 @@ using positional notation to match parameters with subtype marks. The form with an @code{'Access} attribute can be used to match an anonymous access parameter. -@cindex OpenVMS -@cindex Passing by descriptor -Passing by descriptor is supported only on the OpenVMS ports of GNAT@. -The default behavior for Export_Function is to accept either 64bit or -32bit descriptors unless short_descriptor is specified, then only 32bit -descriptors are accepted. - @cindex Suppressing external name Special treatment is given if the EXTERNAL is an explicit null string or a static string expressions that evaluates to the null @@ -2988,13 +2975,7 @@ MECHANISM ::= MECHANISM_ASSOCIATION ::= [formal_parameter_NAME =>] MECHANISM_NAME -MECHANISM_NAME ::= - Value -| Reference -| Descriptor [([Class =>] CLASS_NAME)] -| Short_Descriptor [([Class =>] CLASS_NAME)] - -CLASS_NAME ::= ubs | ubsb | uba | s | sb | a +MECHANISM_NAME ::= Value | Reference @end smallexample @noindent @@ -3007,13 +2988,6 @@ not what is wanted, so it is usually appropriate to use this pragma in conjunction with a @code{Export} or @code{Convention} pragma that specifies the desired foreign convention. -@cindex OpenVMS -@cindex Passing by descriptor -Passing by descriptor is supported only on the OpenVMS ports of GNAT@. -The default behavior for Export_Procedure is to accept either 64bit or -32bit descriptors unless short_descriptor is specified, then only 32bit -descriptors are accepted. - @cindex Suppressing external name Special treatment is given if the EXTERNAL is an explicit null string or a static string expressions that evaluates to the null @@ -3074,13 +3048,7 @@ MECHANISM ::= MECHANISM_ASSOCIATION ::= [formal_parameter_NAME =>] MECHANISM_NAME -MECHANISM_NAME ::= - Value -| Reference -| Descriptor [([Class =>] CLASS_NAME)] -| Short_Descriptor [([Class =>] CLASS_NAME)] - -CLASS_NAME ::= ubs | ubsb | uba | s | sb | a +MECHANISM_NAME ::= Value | Reference @end smallexample @noindent @@ -3098,13 +3066,6 @@ with foreign language functions, so it is usually appropriate to use this pragma in conjunction with a @code{Export} or @code{Convention} pragma that specifies the desired foreign convention. -@cindex OpenVMS -@cindex Passing by descriptor -Passing by descriptor is supported only on the OpenVMS ports of GNAT@. -The default behavior for Export_Valued_Procedure is to accept either 64bit or -32bit descriptors unless short_descriptor is specified, then only 32bit -descriptors are accepted. - @cindex Suppressing external name Special treatment is given if the EXTERNAL is an explicit null string or a static string expressions that evaluates to the null @@ -3608,8 +3569,7 @@ pragma Import_Function ( [, [Parameter_Types =>] PARAMETER_TYPES] [, [Result_Type =>] SUBTYPE_MARK] [, [Mechanism =>] MECHANISM] - [, [Result_Mechanism =>] MECHANISM_NAME] - [, [First_Optional_Parameter =>] IDENTIFIER]); + [, [Result_Mechanism =>] MECHANISM_NAME]); EXTERNAL_SYMBOL ::= IDENTIFIER @@ -3698,8 +3658,7 @@ pragma Import_Procedure ( [Internal =>] LOCAL_NAME [, [External =>] EXTERNAL_SYMBOL] [, [Parameter_Types =>] PARAMETER_TYPES] - [, [Mechanism =>] MECHANISM] - [, [First_Optional_Parameter =>] IDENTIFIER]); + [, [Mechanism =>] MECHANISM]); EXTERNAL_SYMBOL ::= IDENTIFIER @@ -3739,8 +3698,7 @@ pragma Import_Valued_Procedure ( [Internal =>] LOCAL_NAME [, [External =>] EXTERNAL_SYMBOL] [, [Parameter_Types =>] PARAMETER_TYPES] - [, [Mechanism =>] MECHANISM] - [, [First_Optional_Parameter =>] IDENTIFIER]); + [, [Mechanism =>] MECHANISM]); EXTERNAL_SYMBOL ::= IDENTIFIER @@ -6405,11 +6363,8 @@ pragma Short_Descriptors @end smallexample @noindent -In VMS versions of the compiler, this configuration pragma causes all -occurrences of the mechanism types Descriptor[_xxx] to be treated as -Short_Descriptor[_xxx]. This is helpful in porting legacy applications from a -32-bit environment to a 64-bit environment. This pragma is ignored for non-VMS -versions. +This pragma is provided for compatibility with other Ada implementations. It +is recognized but ignored by all current versions of GNAT. @node Pragma Simple_Storage_Pool_Type @unnumberedsec Pragma Simple_Storage_Pool_Type |