Iain Sandoe <iains....@gmail.com> writes:
> There are several modula-2 issues on Darwin, some blocking bootstrap on
> one or more system versions.
>
> This has been tested on powerpc/i688-darwin9 .. x86_64-darwin10,17,21 and
> the prototype aarch64-darwin branch on darwin21.
>
> OK for trunk?
> thanks
> Iain
>
> NOTE: As discussed in the PR, there are likely to be other changes to the
> _definitions_ of the module registration constructors. This patch only
> relates to the _references_ to those CTORs.
>
> --- 8< ---
>
> The symbols for module registration constructors need to be external
> or we get wrong code generated for targets that allow direct access to
> local symbol definitions.
>
> Signed-off-by: Iain Sandoe <i...@sandoe.co.uk>
>
> PR modula2/108183
>
> gcc/m2/ChangeLog:
>
> * gm2-compiler/M2GCCDeclare.mod: Module registration constructors are
> externs to the builder of m2_link.
> ---
> gcc/m2/gm2-compiler/M2GCCDeclare.mod | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/gcc/m2/gm2-compiler/M2GCCDeclare.mod
> b/gcc/m2/gm2-compiler/M2GCCDeclare.mod
> index 7e814b631ee..4c177c47398 100644
> --- a/gcc/m2/gm2-compiler/M2GCCDeclare.mod
> +++ b/gcc/m2/gm2-compiler/M2GCCDeclare.mod
> @@ -2294,6 +2294,11 @@ PROCEDURE IsExternal (sym: CARDINAL) : BOOLEAN ;
> VAR
> mod: CARDINAL ;
> BEGIN
> + IF IsProcedure (sym) AND IsExtern (sym)
> + THEN
> + Assert (NOT IsDefImp (sym));
> + RETURN TRUE
> + END ;
> mod := GetScope(sym) ;
> REPEAT
> IF mod=NulSym
a very minor change suggested:
VAR
mod: CARDINAL ;
BEGIN
Assert (NOT IsDefImp (sym)) ;
IF IsProcedure (sym) AND IsExtern (sym)
THEN
RETURN TRUE
END ;
mod := GetScope(sym) ;
REPEAT
IF mod=NulSym
as it doesn't make sense to call GetScope from a DefImp symbol.
There is no entry in the double booking tree for DefImp symbols
(definition / implmentation modules) - so it really shouldn't occur.
Other than this obvious change, the patches 1, 2, 3 LGTM - I've also
boot strapped and built these patches (with the above Assert change) on
amd64 gnu/linux for what it is worth,
regards,
Gaius
