diff options
Diffstat (limited to 'gcc/cp/rtti.c')
| -rw-r--r-- | gcc/cp/rtti.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/gcc/cp/rtti.c b/gcc/cp/rtti.c index c113e1c..6c92d19 100644 --- a/gcc/cp/rtti.c +++ b/gcc/cp/rtti.c @@ -1345,22 +1345,32 @@ emit_support_tinfos (void) for (ix = 0; fundamentals[ix]; ix++) { tree bltn = *fundamentals[ix]; - tree bltn_ptr = build_pointer_type (bltn); - tree bltn_const_ptr = build_pointer_type - (build_qualified_type (bltn, TYPE_QUAL_CONST)); - tree tinfo; - - tinfo = get_tinfo_decl (bltn); - TREE_USED (tinfo) = 1; - TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (tinfo)) = 1; - - tinfo = get_tinfo_decl (bltn_ptr); - TREE_USED (tinfo) = 1; - TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (tinfo)) = 1; - - tinfo = get_tinfo_decl (bltn_const_ptr); - TREE_USED (tinfo) = 1; - TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (tinfo)) = 1; + tree types[3] = { + bltn, + build_pointer_type (bltn), + build_pointer_type (build_qualified_type (bltn, TYPE_QUAL_CONST)) + }; + int i; + + for (i = 0; i < 3; ++i) + { + tree tinfo; + tinfo = get_tinfo_decl (types[i]); + TREE_USED (tinfo) = 1; + mark_needed (tinfo); + /* The C++ ABI requires that these objects be COMDAT. But, + On systems without weak symbols, initialized COMDAT + objects are emitted with internal linkage. (See + comdat_linkage for details.) Since we want these objects + to have external linkage so that copies do not have to be + emitted in code outside the runtime library, we make them + non-COMDAT here. */ + if (!flag_weak) + { + gcc_assert (TREE_PUBLIC (tinfo) && !DECL_COMDAT (tinfo)); + DECL_INTERFACE_KNOWN (tinfo) = 1; + } + } } } |