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authorCary Coutant <ccoutant@google.com>2014-07-08 22:34:27 -0700
committerCary Coutant <ccoutant@google.com>2014-07-08 22:52:37 -0700
commite051745c838bf29e564fb2665339f97c8383b9e8 (patch)
treef95cb0a6f37660cfa33bacef128b335f4dc678e3 /gold/script.cc
parentecf3e831f71257e8ff7bf794f394f23b26d75137 (diff)
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Fix --defsym to copy symbol attributes.
Alan Modra committed a patch to Gnu ld to fix a problem encountered on PPC where the --defsym option wasn't copying the st_other bits to the newly-defined symbol. https://sourceware.org/ml/binutils/2014-07/msg00094.html Gold has the same problem, and additionally wasn't copying the symbol type. This patch fixes both problems, by copying the symbol type, visibility, and the remaining st_other bits to the new symbol for --defsym=sym1=sym2 assignments. gold/ * expression.cc (struct Expression::Expression_eval_info): Add new fields type_pointer, vis_pointer, and nonvis_pointer. (Expression::eval_maybe_dot): Add type_pointer, vis_pointer, and nonvis_pointer parameters. Adjust all calls. (Symbol_expression::value): Update type, visibility, and nonvis bits in caller. * script.cc (Symbol_assignment::sized_finalize): Update type, visibility, and remaining st_other bits for new symbol. * script.h: (Expression::eval_maybe_dot): Add type_pointer, vis_pointer, and nonvis_pointer parameters. * symtab.h (Symbol::set_type): New method. * testsuite/Makefile.am (defsym_test): New test. * testsuite/Makefile.in: Regenerate. * testsuite/defsym_test.c: New file. * testsuite/defsym_test.sh: New file.
Diffstat (limited to 'gold/script.cc')
-rw-r--r--gold/script.cc11
1 files changed, 9 insertions, 2 deletions
diff --git a/gold/script.cc b/gold/script.cc
index b4a6aff..eff9a81 100644
--- a/gold/script.cc
+++ b/gold/script.cc
@@ -980,12 +980,19 @@ Symbol_assignment::sized_finalize(Symbol_table* symtab, const Layout* layout,
Output_section* dot_section)
{
Output_section* section;
+ elfcpp::STT type = elfcpp::STT_NOTYPE;
+ elfcpp::STV vis = elfcpp::STV_DEFAULT;
+ unsigned char nonvis = 0;
uint64_t final_val = this->val_->eval_maybe_dot(symtab, layout, true,
is_dot_available,
dot_value, dot_section,
- &section, NULL, false);
+ &section, NULL, &type,
+ &vis, &nonvis, false);
Sized_symbol<size>* ssym = symtab->get_sized_symbol<size>(this->sym_);
ssym->set_value(final_val);
+ ssym->set_type(type);
+ ssym->set_visibility(vis);
+ ssym->set_nonvis(nonvis);
if (section != NULL)
ssym->set_output_section(section);
}
@@ -1005,7 +1012,7 @@ Symbol_assignment::set_if_absolute(Symbol_table* symtab, const Layout* layout,
uint64_t val = this->val_->eval_maybe_dot(symtab, layout, false,
is_dot_available, dot_value,
dot_section, &val_section, NULL,
- false);
+ NULL, NULL, NULL, false);
if (val_section != NULL && val_section != dot_section)
return;