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-rw-r--r--gcc/target.def4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/target.def b/gcc/target.def
index a3d3b04..25f94c1 100644
--- a/gcc/target.def
+++ b/gcc/target.def
@@ -4680,7 +4680,9 @@ pass all their arguments on the stack.\n\
The argument @var{args_so_far} points to the @code{CUMULATIVE_ARGS} data\n\
structure, containing the values that are obtained after processing the\n\
named arguments. The argument @var{arg} describes the last of these named\n\
-arguments.\n\
+arguments. The argument @var{arg} should not be used if the function type\n\
+satisfies @code{TYPE_NO_NAMED_ARGS_STDARG_P}, since in that case there are\n\
+no named arguments and all arguments are accessed with @code{va_arg}.\n\
\n\
The target hook should do two things: first, push onto the stack all the\n\
argument registers @emph{not} used for the named arguments, and second,\n\