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authorIan Lance Taylor <iant@google.com>2008-02-12 00:24:00 +0000
committerIan Lance Taylor <iant@google.com>2008-02-12 00:24:00 +0000
commit4e8fe71f6c6f417efb67675695fa0b96cf6081b5 (patch)
tree67853f43415409a109d624501aaccd1ec73adad7 /gold/layout.cc
parent0e43bb4edd02c76feb1735e057ea302be13404a9 (diff)
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Set TEXTREL correctly when using a SECTIONS clause.
Diffstat (limited to 'gold/layout.cc')
-rw-r--r--gold/layout.cc40
1 files changed, 31 insertions, 9 deletions
diff --git a/gold/layout.cc b/gold/layout.cc
index 6cba3aa..b28682e 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -2168,16 +2168,38 @@ Layout::finish_dynamic_section(const Input_objects* input_objects,
// Look for text segments that have dynamic relocations.
bool have_textrel = false;
- for (Segment_list::const_iterator p = this->segment_list_.begin();
- p != this->segment_list_.end();
- ++p)
+ if (!this->script_options_->saw_sections_clause())
{
- if (((*p)->flags() & elfcpp::PF_W) == 0
- && (*p)->dynamic_reloc_count() > 0)
- {
- have_textrel = true;
- break;
- }
+ for (Segment_list::const_iterator p = this->segment_list_.begin();
+ p != this->segment_list_.end();
+ ++p)
+ {
+ if (((*p)->flags() & elfcpp::PF_W) == 0
+ && (*p)->dynamic_reloc_count() > 0)
+ {
+ have_textrel = true;
+ break;
+ }
+ }
+ }
+ else
+ {
+ // We don't know the section -> segment mapping, so we are
+ // conservative and just look for readonly sections with
+ // relocations. If those sections wind up in writable segments,
+ // then we have created an unnecessary DT_TEXTREL entry.
+ for (Section_list::const_iterator p = this->section_list_.begin();
+ p != this->section_list_.end();
+ ++p)
+ {
+ if (((*p)->flags() & elfcpp::SHF_ALLOC) != 0
+ && ((*p)->flags() & elfcpp::SHF_WRITE) == 0
+ && ((*p)->dynamic_reloc_count() > 0))
+ {
+ have_textrel = true;
+ break;
+ }
+ }
}
// Add a DT_FLAGS entry. We add it even if no flags are set so that