From b932b8b1bb530cefca9dc7ff5ad2afbe5a881231 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Sat, 27 Mar 2010 15:43:19 +0000 Subject: [PATCH] re PR middle-end/41674 (/usr/ccs/bin/ld: Unsatisfied symbols: _GLOBAL__I_65535_0_main) PR middle-end/41674 * cgraphunit.c (cgraph_build_static_cdtor): If target doesn't have cdtors, set DECL_PRESERVE_P. * ipa.c (cgraph_externally_visible_p): Return true if declaration should be preseved. From-SVN: r157779 --- gcc/ChangeLog | 8 ++++++++ gcc/cgraphunit.c | 6 +++++- gcc/ipa.c | 2 ++ 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 393e7530b91..5c6d82cbad2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2010-03-27 John David Anglin + + PR middle-end/41674 + * cgraphunit.c (cgraph_build_static_cdtor): If target doesn't have + cdtors, set DECL_PRESERVE_P. + * ipa.c (cgraph_externally_visible_p): Return true if declaration + should be preseved. + 2010-03-27 Uros Bizjak PR tree-optimization/43528 diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index c41477bede3..185fc538d7d 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -1946,7 +1946,11 @@ cgraph_build_static_cdtor (char which, tree body, int priority) DECL_ARTIFICIAL (decl) = 1; DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (decl) = 1; DECL_SAVED_TREE (decl) = body; - TREE_PUBLIC (decl) = ! targetm.have_ctors_dtors; + if (!targetm.have_ctors_dtors) + { + TREE_PUBLIC (decl) = 1; + DECL_PRESERVE_P (decl) = 1; + } DECL_UNINLINABLE (decl) = 1; DECL_INITIAL (decl) = make_node (BLOCK); diff --git a/gcc/ipa.c b/gcc/ipa.c index c789a29372d..225f268219b 100644 --- a/gcc/ipa.c +++ b/gcc/ipa.c @@ -317,6 +317,8 @@ cgraph_externally_visible_p (struct cgraph_node *node, bool whole_program) return false; if (!whole_program) return true; + if (DECL_PRESERVE_P (node->decl)) + return true; /* COMDAT functions must be shared only if they have address taken, otherwise we can produce our own private implementation with -fwhole-program. */