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* give an error when trying to call through to a C varargs routine with a

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high level code generator
   o we cannot create a high-level stub in that case

git-svn-id: trunk@41443 -
This commit is contained in:
Jonas Maebe 2019-02-24 19:58:44 +00:00
parent a51c06f907
commit bc77aad3d9
4 changed files with 613 additions and 605 deletions
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5
compiler/msg/errore.msg
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@ -1594,7 +1594,10 @@ parser_e_only_static_members_via_object_type=03349_E_Only static methods and sta
% TObj.test;
% \end{verbatim}
% \var{test} is not a static method and hence cannot be called through a type, but only using an instance.
%
parse_e_callthrough_varargs=03350_E_Cannot redeclare C-style variadic function "$1" as external on this platform; make its first declaration already external
% If a function is declared normally in the interface or as a forward declaration, and then later as external, the compiler
% must generate a stub that calls the external function. Due to code generation limitations, this cannot be done on some
% platforms. Even on platforms where it is supported, this is quite inefficient.
%
% \end{description}
%

5
compiler/msgidx.inc
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@ -460,6 +460,7 @@ const
parser_w_operator_overloaded_hidden_3=03347;
parser_e_threadvar_must_be_class=03348;
parser_e_only_static_members_via_object_type=03349;
parse_e_callthrough_varargs=03350;
type_e_mismatch=04000;
type_e_incompatible_types=04001;
type_e_not_equal_types=04002;
@ -1107,9 +1108,9 @@ const
option_info=11024;
option_help_pages=11025;
MsgTxtSize = 82796;
MsgTxtSize = 82926;
MsgIdxMax : array[1..20] of longint=(
28,106,350,126,99,59,142,34,221,67,
28,106,351,126,99,59,142,34,221,67,
62,20,30,1,1,1,1,1,1,1
);

1199
compiler/msgtxt.inc
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File diff suppressed because it is too large Load Diff

9
compiler/psub.pas
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@ -2371,7 +2371,14 @@ implementation
if (not pd.forwarddef) and
(pd.hasforward) and
(proc_get_importname(pd)<>'') then
call_through_new_name(pd,proc_get_importname(pd))
begin
{ we cannot handle the callee-side of variadic functions (and
even if we could, e.g. LLVM cannot call through to something
else in that case) }
if is_c_variadic(pd) then
Message1(parse_e_callthrough_varargs,pd.fullprocname(false));
call_through_new_name(pd,proc_get_importname(pd));
end
else
{$endif cpuhighleveltarget}
begin