* create LLVM TAsmCFI wrapper that calls through to the original TASmCFI for

pure assembler routines and for generating the CFI tables, and does nothing
    for LLVM-handled routines (LLVM takes care of the CFI there)

git-svn-id: branches/debug_eh@41580 -

.gitattributes

@@ -343,6 +343,7 @@ compiler/llvm/cgllvm.pas svneol=native#text/plain
 compiler/llvm/hlcgllvm.pas svneol=native#text/plain
 compiler/llvm/itllvm.pas svneol=native#text/plain
 compiler/llvm/llvmbase.pas svneol=native#text/plain
+compiler/llvm/llvmcfi.pas svneol=native#text/plain
 compiler/llvm/llvmdef.pas svneol=native#text/plain
 compiler/llvm/llvminfo.pas svneol=native#text/plain
 compiler/llvm/llvmnode.pas svneol=native#text/plain

compiler/llvm/agllvm.pas

@@ -1405,7 +1405,7 @@ implementation
                WriteTypedConstData(tai_abstracttypedconst(hp));
              end
           else
-            internalerror(2019012001);
+            internalerror(2019012010);
         end;
       end;
 
@@ -1438,7 +1438,7 @@ implementation
                current_asmdata.asmlists[hal].Empty then
               continue;
             writer.AsmWriteLn(asminfo^.comment+'Begin asmlist '+AsmlistTypeStr[hal]);
-            if hal<>al_pure_assembler then
+            if not(hal in [al_pure_assembler,al_dwarf_frame]) then
               writetree(current_asmdata.asmlists[hal])
             else
               begin

compiler/llvm/llvmcfi.pas

@@ -0,0 +1,147 @@
+{
+    Copyright (c) 2019 by Jonas Maebe, member of the Free Pascal Compiler
+    development team
+
+    LLVM CFI wrapper: use native CFI instance for pure assembler routines,
+    and dummy one for LLVM (the LLVM code generator will take care of CFI)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ ****************************************************************************
+}
+unit llvmcfi;
+
+{$i fpcdefs.inc}
+
+  interface
+
+    uses
+      aasmbase,
+      aasmdata,
+      cgbase;
+
+    type
+      tllvmcfi = class(TAsmCFI)
+        constructor create; override;
+        destructor destroy; override;
+        procedure generate_code(list: TAsmList); override;
+        procedure start_frame(list:TAsmList);override;
+        procedure end_frame(list:TAsmList);override;
+        procedure outmost_frame(list:TAsmList);override;
+        procedure cfa_offset(list:TAsmList;reg:tregister;ofs:longint);override;
+        procedure cfa_restore(list:TAsmList;reg:tregister);override;
+        procedure cfa_def_cfa_register(list:TAsmList;reg:tregister);override;
+        procedure cfa_def_cfa_offset(list:TAsmList;ofs:longint);override;
+        function get_frame_start: TAsmLabel; override;
+        function get_cfa_list: TAsmList; override;
+       private
+         fnativecfi: TAsmCFI;
+      end;
+
+  implementation
+
+    uses
+      symconst,
+      procinfo;
+
+    var
+      nativecficlass: TAsmCFIClass;
+
+    constructor tllvmcfi.create;
+      begin
+        inherited;
+        fnativecfi:=nativecficlass.create;
+      end;
+
+
+    destructor tllvmcfi.destroy;
+      begin
+        fnativecfi.free;
+        inherited destroy;
+      end;
+
+
+    procedure tllvmcfi.generate_code(list: TAsmList);
+      begin
+        fnativecfi.generate_code(list);
+      end;
+
+
+    procedure tllvmcfi.start_frame(list: TAsmList);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.start_frame(list);
+      end;
+
+
+    procedure tllvmcfi.end_frame(list: TAsmList);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.end_frame(list);
+      end;
+
+
+    procedure tllvmcfi.outmost_frame(list: TAsmList);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.outmost_frame(list);
+      end;
+
+
+    procedure tllvmcfi.cfa_offset(list: TAsmList; reg: tregister; ofs: longint);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.cfa_offset(list, reg, ofs);
+      end;
+
+
+    procedure tllvmcfi.cfa_restore(list: TAsmList; reg: tregister);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.cfa_restore(list, reg);
+      end;
+
+
+    procedure tllvmcfi.cfa_def_cfa_register(list: TAsmList; reg: tregister);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.cfa_def_cfa_register(list, reg);
+      end;
+
+
+    procedure tllvmcfi.cfa_def_cfa_offset(list: TAsmList; ofs: longint);
+      begin
+        if po_assembler in current_procinfo.procdef.procoptions then
+          fnativecfi.cfa_def_cfa_offset(list, ofs);
+      end;
+
+
+    function tllvmcfi.get_frame_start: TAsmLabel;
+      begin
+        result:=fnativecfi.get_frame_start;
+      end;
+
+
+    function tllvmcfi.get_cfa_list: TAsmList;
+      begin
+        result:=fnativecfi.get_cfa_list;
+      end;
+
+
+begin
+  nativecficlass:=CAsmCFI;
+  CAsmCFI:=tllvmcfi;
+end.
+

compiler/llvm/llvmnode.pas

@@ -40,6 +40,7 @@ implementation
     nllvmadd,nllvmbas,nllvmcal,nllvmcnv,nllvmcon,nllvmflw,nllvminl,nllvmld,
     nllvmmat,nllvmmem,nllvmtcon,nllvmutil,
     llvmpara,llvmpi,
-    symllvm;
+    symllvm,
+    llvmcfi;
 
 end.