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author | Nick Lewycky <nicholas@mxc.ca> | 2009-02-15 22:49:17 +0000 |
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committer | Nick Lewycky <nicholas@mxc.ca> | 2009-02-15 22:49:17 +0000 |
commit | e0afaa301d763096af400ef44714b0f4deb5b68b (patch) | |
tree | 31048e173f598af0b2dec78c64e4827c50b36551 /tools/gold | |
parent | 225f7474863a11a7baded7d6505400ce3328331e (diff) | |
download | external_llvm-e0afaa301d763096af400ef44714b0f4deb5b68b.zip external_llvm-e0afaa301d763096af400ef44714b0f4deb5b68b.tar.gz external_llvm-e0afaa301d763096af400ef44714b0f4deb5b68b.tar.bz2 |
Don't discard definitions of common symbols. Not sure if this is the right fix.
Before this change, the program:
int var;
int main(void) { return 0; }
when run under 'nm -g' would show 'U var' with the gold plugin and
'B var' with gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64616 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/gold')
-rw-r--r-- | tools/gold/gold-plugin.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/gold/gold-plugin.cpp b/tools/gold/gold-plugin.cpp index a974d81..8776d84 100644 --- a/tools/gold/gold-plugin.cpp +++ b/tools/gold/gold-plugin.cpp @@ -290,7 +290,11 @@ ld_plugin_status all_symbols_read_hook(void) { E = Modules.end(); I != E; ++I) { (*get_symbols)(I->handle, I->syms.size(), &I->syms[0]); for (unsigned i = 0, e = I->syms.size(); i != e; i++) { - if (I->syms[i].resolution == LDPR_PREVAILING_DEF) { + (*message)(LDPL_WARNING, "def: %d visibility: %d resolution %d", + I->syms[i].def, I->syms[i].visibility, I->syms[i].resolution); + if (I->syms[i].resolution == LDPR_PREVAILING_DEF || + (I->syms[i].def == LDPK_COMMON && + I->syms[i].resolution == LDPR_RESOLVED_IR)) { lto_codegen_add_must_preserve_symbol(cg, I->syms[i].name); anySymbolsPreserved = true; } |