From 438900938c3ac9d7fac2dd5d2c85ca4b9b2e35f7 Mon Sep 17 00:00:00 2001 From: Rafael Espindola Date: Thu, 3 Oct 2013 18:29:09 +0000 Subject: Optimize linkonce_odr unnamed_addr functions during LTO. Generalize the API so we can distinguish symbols that are needed just for a DSO symbol table from those that are used from some native .o. The symbols that are only wanted for the dso symbol table can be dropped if llvm can prove every other dso has a copy (linkonce_odr) and the address is not important (unnamed_addr). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191922 91177308-0d34-0410-b5e6-96231b3b80d8 --- tools/gold/gold-plugin.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'tools/gold') diff --git a/tools/gold/gold-plugin.cpp b/tools/gold/gold-plugin.cpp index bd11d1b555..119631cfa7 100644 --- a/tools/gold/gold-plugin.cpp +++ b/tools/gold/gold-plugin.cpp @@ -197,7 +197,7 @@ ld_plugin_status onload(ld_plugin_tv *tv) { case LDPT_ADD_SYMBOLS: add_symbols = tv->tv_u.tv_add_symbols; break; - case LDPT_GET_SYMBOLS: + case LDPT_GET_SYMBOLS_V2: get_symbols = tv->tv_u.tv_get_symbols; break; case LDPT_ADD_INPUT_FILE: @@ -386,6 +386,11 @@ static ld_plugin_status all_symbols_read_hook(void) { if (options::generate_api_file) api_file << I->syms[i].name << "\n"; + } else if (I->syms[i].resolution == LDPR_PREVAILING_DEF_IRONLY_EXP) { + lto_codegen_add_dso_symbol(code_gen, I->syms[i].name); + + if (options::generate_api_file) + api_file << I->syms[i].name << " dso only\n"; } } } -- cgit v1.2.3