From 2b5f2501ea98677dd265291c4032d89fe1d1641f Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 29 Jan 2001 17:38:41 -0800 Subject: [PATCH] * tree.h (TYPE_STUB_DECL): Add documentation. From-SVN: r39340 --- gcc/ChangeLog | 6 +++++- gcc/tree.h | 7 +++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9eb4d2c9f7b..cc4af5fce47 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,8 @@ -2000-11-29 Laurynas Biveinis +2001-11-29 Tim Josling + + * tree.h (TYPE_STUB_DECL): Add documentation. + +2001-11-29 Laurynas Biveinis * sdbout.c (sdbout_one_type): Skip types with indeterminate size. (sdbout_field_types): Likwise. Fix use of host_integerp. diff --git a/gcc/tree.h b/gcc/tree.h index 1ff74410a94..f9da7c9a5b1 100644 --- a/gcc/tree.h +++ b/gcc/tree.h @@ -939,6 +939,13 @@ struct tree_block #define TYPE_ALIGN_UNIT(NODE) \ (TYPE_ALIGN (NODE) / BITS_PER_UNIT) +/* If your language allows you to declare types, and you want debug info + for them, then you need to generate corresponding TYPE_DECL nodes. + These "stub" TYPE_DECL nodes have no name, and simply point at the + type node. You then set the TYPE_STUB_DECL field of the type node + to point back at the TYPE_DECL node. This allows the debug routines + to know that the two nodes represent the same type, so that we only + get one debug info record for them. */ #define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE)) /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type -- 2.30.2