If the option -gnatd.H is present (Standard Package mode for gnat2why), skip
the frontend, except the call to Create_Standard, and call the backend
directly.
Tested on x86_64-pc-linux-gnu, committed on trunk
2011-08-29 Johannes Kanig <[email protected]>
* frontend.adb (Frontend): Exit after creating Standard package when
-gnatd.H is present.
* gnat1drv.adb (Gnat1drv): Call Backend right away when -gnatd.H is
present.
Index: frontend.adb
===================================================================
--- frontend.adb (revision 178155)
+++ frontend.adb (working copy)
@@ -98,6 +98,12 @@
CStand.Create_Standard;
+ -- If the -gnatd.H flag is present, we are only interested in the Standard
+ -- package, so the frontend has done its job here.
+ if Debug_Flag_Dot_HH then
+ return;
+ end if;
+
-- Check possible symbol definitions specified by -gnateD switches
Prepcomp.Process_Command_Line_Symbol_Definitions;
Index: gnat1drv.adb
===================================================================
--- gnat1drv.adb (revision 178163)
+++ gnat1drv.adb (working copy)
@@ -771,8 +771,23 @@
Frontend;
-- Exit with errors if the main source could not be parsed
-
+ -- Also, when -gnatd.H is present, the source file is not set.
if Sinput.Main_Source_File = No_Source_File then
+ if Debug_Flag_Dot_HH then
+ -- We lock all the tables to keep the convention that the backend
+ -- needs to unlock the tables it wants to touch.
+ Atree.Lock;
+ Elists.Lock;
+ Fname.UF.Lock;
+ Inline.Lock;
+ Lib.Lock;
+ Nlists.Lock;
+ Sem.Lock;
+ Sinput.Lock;
+ Namet.Lock;
+ Stringt.Lock;
+ Back_End.Call_Back_End (Back_End.Generate_Object);
+ end if;
Errout.Finalize (Last_Call => True);
Errout.Output_Messages;
Exit_Program (E_Errors);
