m68k: enable named sections for vasm generated objects. have a separate as_m68k_as_aout for a.out objects which doesn't have named sections. amiga and atari gas defaults to a.out, so have it default on these systems. finally enable section smartlinking for amiga and atari, which will be used with vasm assembler

git-svn-id: trunk@35112 -

compiler/aggas.pas

@@ -447,9 +447,14 @@ implementation
         writer.AsmLn;
         case target_info.system of
          system_i386_OS2,
-         system_i386_EMX,
+         system_i386_EMX: ;
          system_m68k_atari, { atari tos/mint GNU AS also doesn't seem to like .section (KB) }
-         system_m68k_amiga: ; { amiga has old GNU AS (2.14), which blews up from .section (KB) }
+         system_m68k_amiga: { amiga has old GNU AS (2.14), which blews up from .section (KB) }
+           begin
+             { ... but vasm is GAS compatible on amiga/atari, and supports named sections }
+             if create_smartlink_sections then
+               writer.AsmWrite('.section ');
+           end;
          system_powerpc_darwin,
          system_i386_darwin,
          system_i386_iphonesim,

compiler/m68k/ag68kgas.pas

@@ -320,13 +320,29 @@ interface
             idtxt  : 'AS';
             asmbin : 'as';
             asmcmd : '$ARCH -o $OBJ $EXTRAOPT $ASM';
-            supported_targets : [system_m68k_Amiga,system_m68k_Atari,system_m68k_Mac,system_m68k_linux,system_m68k_PalmOS,system_m68k_netbsd,system_m68k_openbsd,system_m68k_embedded];
+            supported_targets : [system_m68k_Mac,system_m68k_linux,system_m68k_PalmOS,system_m68k_netbsd,system_m68k_openbsd,system_m68k_embedded];
             flags : [af_needar,af_smartlink_sections];
             labelprefix : '.L';
             comment : '# ';
             dollarsign: '$';
           );
 
+       as_m68k_as_aout_info : tasminfo =
+          (
+            id     : as_m68k_as_aout;
+            idtxt  : 'AS';
+            asmbin : 'as';
+            asmcmd : '$ARCH -o $OBJ $EXTRAOPT $ASM';
+            supported_targets : [system_m68k_Amiga,system_m68k_Atari];
+            flags : [af_needar];
+            labelprefix : '.L';
+            comment : '# ';
+            dollarsign: '$';
+          );
+
+
+
 initialization
   RegisterAssembler(as_m68k_as_info,Tm68kGNUAssembler);
+  RegisterAssembler(as_m68k_as_aout_info,Tm68kGNUAssembler);
 end.

compiler/m68k/ag68kvasm.pas

@@ -67,8 +67,10 @@ unit ag68kvasm;
         result:=asminfo^.asmcmd;
 
         case target_info.system of
+          { a.out doesn't support named sections }
           system_m68k_amiga: objtype:='-Fhunk';
-          system_m68k_atari: objtype:='-Fvobj'; // fix me?
+          { atari never had a standard object format, a.out is limited, vasm/vlink author recommends vobj }
+          system_m68k_atari: objtype:='-Fvobj';
           system_m68k_linux: objtype:='-Felf';
         else
           internalerror(2016052601);

compiler/systems.inc

@@ -225,6 +225,7 @@
              ,as_clang
              ,as_solaris_as
              ,as_m68k_vasm
+             ,as_m68k_as_aout
        );
 
        tlink = (ld_none,

compiler/systems/i_amiga.pas

@@ -34,7 +34,7 @@ unit i_amiga;
             system       : system_m68k_Amiga;
             name         : 'Commodore Amiga';
             shortname    : 'amiga';
-            flags        : [tf_files_case_aware,tf_requires_proper_alignment,tf_has_winlike_resources];
+            flags        : [tf_files_case_aware,tf_requires_proper_alignment,tf_has_winlike_resources,tf_smartlink_sections];
             cpu          : cpu_m68k;
             unit_env     : 'AMIGAUNITS';
             extradefines : 'HASAMIGA;AMIGA68K';
@@ -61,8 +61,8 @@ unit i_amiga;
             Cprefix      : '';
             newline      : #10;
             dirsep       : '/';
-            assem        : as_gas;
-            assemextern  : as_gas;
+            assem        : as_m68k_as_aout;
+            assemextern  : as_m68k_as_aout;
             link         : ld_none;
             linkextern   : ld_amiga;
             ar           : ar_gnu_ar;

compiler/systems/i_atari.pas

@@ -34,7 +34,7 @@ unit i_atari;
             system       : system_m68k_Atari;
             name         : 'Atari ST/STE';
             shortname    : 'atari';
-            flags        : [tf_use_8_3,tf_requires_proper_alignment];
+            flags        : [tf_use_8_3,tf_requires_proper_alignment,tf_smartlink_sections];
             cpu          : cpu_m68k;
             unit_env     : '';
             extradefines : '';
@@ -61,8 +61,8 @@ unit i_atari;
             Cprefix      : '_';
             newline      : #10;
             dirsep       : '/';
-            assem        : as_gas;
-            assemextern  : as_gas;
+            assem        : as_m68k_as_aout;
+            assemextern  : as_m68k_as_aout;
             link         : ld_atari;
             linkextern   : ld_atari;
             ar           : ar_gnu_ar;