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fpc/SOURCES/fpc-3.2.2--ppc64le-toc-fixe...

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3 years ago
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/ncgvmt.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/ncgvmt.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/ncgvmt.pas 2018-09-26 14:50:46.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/ncgvmt.pas 2022-02-05 21:45:01.331925919 +0100
@@ -1221,16 +1221,27 @@
i,j : longint;
tmps : string;
pd : TProcdef;
ImplIntf : TImplementedInterface;
-{$ifdef cpuhighleveltarget}
wrapperpd: tprocdef;
wrapperinfo: pskpara_interface_wrapper;
-{$else}
- tmplist: tasmlist;
- oldfileposinfo: tfileposinfo;
-{$endif cpuhighleveltarget}
+ tmplist: tasmlist;
+ oldfileposinfo: tfileposinfo;
+ usehighlevelwrapper: Boolean;
begin
+{$if defined(cpuhighleveltarget)}
+ usehighlevelwrapper:=true;
+{$else defined(cpuhighleveltarget)}
+ { on PPC systems that use a TOC the linker needs to be able to insert
+ an instruction to restore the TOC register after every branch
+ between code fragments that use a different TOC (which has to be
+ executed when that "branch" returns). So we can't use tail call
+ branches to routines potentially using a different TOC there }
+ if target_info.system in systems_ppc_toc then
+ usehighlevelwrapper:=true
+ else
+ usehighlevelwrapper:=false;
+{$endif defined(cpuhighleveltarget)}
for i:=0 to _class.ImplementedInterfaces.count-1 do
begin
ImplIntf:=TImplementedInterface(_class.ImplementedInterfaces[i]);
if (ImplIntf=ImplIntf.VtblImplIntf) and
@@ -1245,45 +1256,49 @@
if (po_virtualmethod in pd.procoptions) and
not is_objectpascal_helper(tprocdef(pd).struct) then
tobjectdef(tprocdef(pd).struct).register_vmt_call(tprocdef(pd).extnumber);
tmps:=CreateWrapperName(_Class,ImplIntf,j,pd);
-{$ifdef cpuhighleveltarget}
- new(wrapperinfo);
- wrapperinfo^.pd:=pd;
- wrapperinfo^.offset:=ImplIntf.ioffset;
- { insert the wrapper procdef in the current unit's local
- symbol table, but set the owning "struct" to the current
- class (so self will have the correct type) }
- wrapperpd:=create_procdef_alias(pd,tmps,tmps,
- current_module.localsymtable,_class,
- tsk_interface_wrapper,wrapperinfo);
- include(wrapperpd.procoptions,po_noreturn);
-{$else cpuhighleveltarget}
- oldfileposinfo:=current_filepos;
- if pd.owner.iscurrentunit then
- current_filepos:=pd.fileinfo
- else
- begin
- current_filepos.moduleindex:=current_module.unit_index;
- current_filepos.fileindex:=1;
- current_filepos.line:=1;
- current_filepos.column:=1;
- end;
- { create wrapper code }
- tmplist:=tasmlist.create;
- new_section(tmplist,sec_code,tmps,target_info.alignment.procalign);
- tmplist.Concat(tai_function_name.create(tmps));
- hlcg.init_register_allocators;
- hlcg.g_intf_wrapper(tmplist,pd,tmps,ImplIntf.ioffset);
- hlcg.done_register_allocators;
- if ((cs_debuginfo in current_settings.moduleswitches) or
- (cs_use_lineinfo in current_settings.globalswitches)) and
- (target_dbg.id<>dbg_stabx) then
- current_debuginfo.insertlineinfo(tmplist);
- list.concatlist(tmplist);
- tmplist.Free;
- current_filepos:=oldfileposinfo;
-{$endif cpuhighleveltarget}
+
+ if usehighlevelwrapper then
+ begin
+ new(wrapperinfo);
+ wrapperinfo^.pd:=pd;
+ wrapperinfo^.offset:=ImplIntf.ioffset;
+ { insert the wrapper procdef in the current unit's local
+ symbol table, but set the owning "struct" to the current
+ class (so self will have the correct type) }
+ wrapperpd:=create_procdef_alias(pd,tmps,tmps,
+ current_module.localsymtable,_class,
+ tsk_interface_wrapper,wrapperinfo);
+ include(wrapperpd.implprocoptions,pio_thunk);
+ end
+ else
+ begin
+ oldfileposinfo:=current_filepos;
+ if pd.owner.iscurrentunit then
+ current_filepos:=pd.fileinfo
+ else
+ begin
+ current_filepos.moduleindex:=current_module.unit_index;
+ current_filepos.fileindex:=1;
+ current_filepos.line:=1;
+ current_filepos.column:=1;
+ end;
+ { create wrapper code }
+ tmplist:=tasmlist.create;
+ new_section(tmplist,sec_code,tmps,target_info.alignment.procalign);
+ tmplist.Concat(tai_function_name.create(tmps));
+ hlcg.init_register_allocators;
+ hlcg.g_intf_wrapper(tmplist,pd,tmps,ImplIntf.ioffset);
+ hlcg.done_register_allocators;
+ if ((cs_debuginfo in current_settings.moduleswitches) or
+ (cs_use_lineinfo in current_settings.globalswitches)) and
+ (target_dbg.id<>dbg_stabx) then
+ current_debuginfo.insertlineinfo(tmplist);
+ list.concatlist(tmplist);
+ tmplist.Free;
+ current_filepos:=oldfileposinfo;
+ end;
end;
end;
end;
end;
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/powerpc64/cgcpu.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/powerpc64/cgcpu.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/powerpc64/cgcpu.pas 2018-04-22 19:03:16.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/powerpc64/cgcpu.pas 2022-02-05 18:58:45.936363402 +0100
@@ -336,12 +336,8 @@
into tempreg }
reference_reset_base(tmpref, reg, 0, ctempposinvalid, sizeof(pint), []);
a_load_ref_reg(list, OS_ADDR, OS_ADDR, tmpref, tempreg);
- { save TOC pointer in stackframe }
- reference_reset_base(tmpref, NR_STACK_POINTER_REG, get_rtoc_offset, ctempposinvalid, 8, []);
- a_load_reg_ref(list, OS_ADDR, OS_ADDR, NR_RTOC, tmpref);
-
{ move actual function pointer to CTR register }
list.concat(taicpu.op_reg(A_MTCTR, tempreg));
{ load new TOC pointer from function descriptor into RTOC register }
@@ -1268,8 +1264,15 @@
list.concat(taicpu.op_reg_reg_reg(A_STDUX, NR_R1, NR_R1, NR_R0));
end;
end;
+ { save current RTOC for restoration after calls if necessary }
+ if pi_do_call in current_procinfo.flags then
+ begin
+ reference_reset_base(href,NR_STACK_POINTER_REG,get_rtoc_offset,ctempposinvalid,target_info.stackalign,[]);
+ a_load_reg_ref(list,OS_ADDR,OS_ADDR,NR_RTOC,href);
+ end;
+
{ CR register not used by FPC atm }
{ keep R1 allocated??? }
a_reg_dealloc(list, NR_R0);
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/ppcgen/cgppc.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/ppcgen/cgppc.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/ppcgen/cgppc.pas 2020-09-15 21:40:36.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/ppcgen/cgppc.pas 2022-02-05 19:00:55.758168678 +0100
@@ -1054,8 +1054,9 @@
(target_info.system in systems_aix)) and
(assigned(ref.symbol) and
not assigned(ref.relsymbol)) then
begin
+ include(current_procinfo.flags,pi_needs_got);
tmpreg := load_got_symbol(list, ref.symbol.name, asmsym2indsymflags(ref.symbol));
if (ref.base = NR_NO) then
ref.base := tmpreg
else if (ref.index = NR_NO) then
Only in fpcbuild-3.2.2--patched/fpcsrc/compiler/ppcgen: cgppc.pas.orig
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/ppcgen/hlcgppc.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/ppcgen/hlcgppc.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/ppcgen/hlcgppc.pas 2020-08-06 11:31:05.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/ppcgen/hlcgppc.pas 2022-02-02 17:47:13.942711248 +0100
@@ -182,13 +182,18 @@
case target_info.system of
system_powerpc_darwin,
system_powerpc64_darwin:
list.concat(taicpu.op_sym(A_B,tcgppcgen(cg).get_darwin_call_stub(procdef.mangledname,false)));
- else if use_dotted_functions then
- {$note ts:todo add GOT change?? - think not needed :) }
- list.concat(taicpu.op_sym(A_B,current_asmdata.RefAsmSymbol('.' + procdef.mangledname,AT_FUNCTION)))
else
- list.concat(taicpu.op_sym(A_B,current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION)))
+ begin
+ if use_dotted_functions then
+ {$note ts:todo add GOT change?? - think not needed :) }
+ list.concat(taicpu.op_sym(A_B,current_asmdata.RefAsmSymbol('.' + procdef.mangledname,AT_FUNCTION)))
+ else
+ list.concat(taicpu.op_sym(A_B,current_asmdata.RefAsmSymbol(procdef.mangledname,AT_FUNCTION)));
+ if (target_info.system in ([system_powerpc64_linux]+systems_aix)) then
+ list.concat(taicpu.op_none(A_NOP));
+ end;
end;
List.concat(Tai_symbol_end.Createname(labelname));
end;
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/psub.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/psub.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/psub.pas 2020-12-17 16:22:03.000000000 +0100
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/psub.pas 2022-02-02 17:27:09.120255281 +0100
@@ -2305,10 +2305,12 @@
either be symcreat- or hlcgobj-based
}
if (not pd.forwarddef) and
(pd.hasforward) and
- (proc_get_importname(pd)<>'') then
- call_through_new_name(pd,proc_get_importname(pd))
+ (proc_get_importname(pd)<>'') then begin
+ call_through_new_name(pd,proc_get_importname(pd))
+ include(pd.implprocoptions,pio_thunk);
+ end
else
{$endif cpuhighleveltarget}
begin
create_hlcodegen;
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/symconst.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/symconst.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/symconst.pas 2019-08-31 13:43:41.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/symconst.pas 2022-02-02 17:24:00.943089235 +0100
@@ -424,9 +424,19 @@
timplprocoption = (
{ the routine contains no code }
pio_empty,
{ the inline body of this routine is available }
- pio_has_inlininginfo
+ pio_has_inlininginfo,
+ { inline is not possible (has assembler block, etc) }
+ pio_inline_not_possible,
+ { a nested routine accesses a local variable from this routine }
+ pio_nested_access,
+ { a stub/thunk }
+ pio_thunk,
+ { compiled with fastmath enabled }
+ pio_fastmath,
+ { inline is forbidden (calls get_frame) }
+ pio_inline_forbidden
);
timplprocoptions = set of timplprocoption;
{ kinds of synthetic procdefs that can be generated }
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/systems.pas fpcbuild-3.2.2--patched/fpcsrc/compiler/systems.pas
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/systems.pas 2020-09-29 16:53:00.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/systems.pas 2022-02-05 21:45:42.560186621 +0100
@@ -392,8 +392,18 @@
{ all systems where a value parameter passed by reference must be copied
on the caller side rather than on the callee side }
systems_caller_copy_addr_value_para = [system_aarch64_ios,system_aarch64_darwin,system_aarch64_linux];
+ { all PPC systems that use a TOC register to address globals }
+ { TODO: not used by Darwin, but don't know about others (JM) }
+ systems_ppc_toc = [
+ system_powerpc_linux,
+ system_powerpc64_linux,
+ system_powerpc_aix,
+ system_powerpc64_aix,
+ system_powerpc_macosclassic
+ ];
+
{ pointer checking (requires special code in FPC_CHECKPOINTER,
and can never work for libc-based targets or any other program
linking to an external library)
}
diff -U4 -r fpcbuild-3.2.2--orig/fpcsrc/compiler/utils/ppuutils/ppudump.pp fpcbuild-3.2.2--patched/fpcsrc/compiler/utils/ppuutils/ppudump.pp
--- fpcbuild-3.2.2--orig/fpcsrc/compiler/utils/ppuutils/ppudump.pp 2020-09-15 21:40:36.000000000 +0200
+++ fpcbuild-3.2.2--patched/fpcsrc/compiler/utils/ppuutils/ppudump.pp 2022-02-02 17:25:26.671620712 +0100
@@ -3086,9 +3086,14 @@
end;
const
piopt : array[low(timplprocoption)..high(timplprocoption)] of tpiopt=(
(mask:pio_empty; str:'IsEmpty'),
- (mask:pio_has_inlininginfo; str:'HasInliningInfo')
+ (mask:pio_has_inlininginfo; str:'HasInliningInfo'),
+ (mask:pio_inline_not_possible; str:'InlineNotPossible'),
+ (mask:pio_nested_access; str:'NestedAccess'),
+ (mask:pio_thunk; str:'Thunk'),
+ (mask:pio_fastmath; str:'FastMath'),
+ (mask:pio_inline_forbidden; str:'InlineForbidden')
);
var
i: timplprocoption;
first: boolean;