"zouq" <[EMAIL PROTECTED]> writes:
> in the gt-c-decl.h,
> three functions about lang_decl,
> gt_pch_nx_lang_decl(),gt_ggc_mx_lang_decl, gt_pch_g_9lang_decl(),
> what are the differences between the three functions?
The _nx_ functions fill in the pchw field of ggc_root_tab. This is used
when saving the data out to a PCH file. The _mx_ functions fill in
the cb field of gcc_root_tab. This is used when marking from a root
during garbage collection. The 9lang functions appear in language
specific header files.
> 2.
> i can find the prefixes in the gengtype.c,
>
> what are they setting for?
>
> static const struct write_types_data ggc_wtd =
> {
> "ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
> "GC marker procedures. "
> };
>
> static
> const
> struct
> write_types_data
> pch_wtd
> =
> {
> "pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
> "gt_pch_note_reorder",
> "PCH type-walking procedures. "
> };
PCH means Precompiled Header. See the docs.
Ian
