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-rw-r--r--gold/ChangeLog10
-rw-r--r--gold/layout.cc20
-rw-r--r--gold/options.h4
3 files changed, 28 insertions, 6 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 0ed1a2f..11a5c74 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,4 +1,12 @@
-2010-09-03 Rafael Espindola <espindola@google.com>
+2010-09-09 Rafael Espindola <espindola@google.com>
+
+ * layout.cc (Layout::attach_allocated_section_to_segment): Don't put
+ sections with different PF_X flags in the same segment.
+ (Layout::find_first_load_seg): Search all segments to find the first
+ one.
+ * options.h (rosegment): New.
+
+2010-09-08 Rafael Espindola <espindola@google.com>
* layout.cc (Layout::set_segment_offsets): Always advance to a new page.
diff --git a/gold/layout.cc b/gold/layout.cc
index f0a431e..b5490d6 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -1171,10 +1171,11 @@ Layout::attach_allocated_section_to_segment(Output_section* os)
bool is_address_set = parameters->options().section_start(os->name(), &addr);
// In general the only thing we really care about for PT_LOAD
- // segments is whether or not they are writable, so that is how we
- // search for them. Large data sections also go into their own
- // PT_LOAD segment. People who need segments sorted on some other
- // basis will have to use a linker script.
+ // segments is whether or not they are writable or executable,
+ // so that is how we search for them.
+ // Large data sections also go into their own PT_LOAD segment.
+ // People who need segments sorted on some other basis will
+ // have to use a linker script.
Segment_list::const_iterator p;
for (p = this->segment_list_.begin();
@@ -1186,6 +1187,9 @@ Layout::attach_allocated_section_to_segment(Output_section* os)
if (!parameters->options().omagic()
&& ((*p)->flags() & elfcpp::PF_W) != (seg_flags & elfcpp::PF_W))
continue;
+ if (parameters->options().rosegment()
+ && ((*p)->flags() & elfcpp::PF_X) != (seg_flags & elfcpp::PF_X))
+ continue;
// If -Tbss was specified, we need to separate the data and BSS
// segments.
if (parameters->options().user_set_Tbss())
@@ -1454,6 +1458,7 @@ Layout::define_group_signatures(Symbol_table* symtab)
Output_segment*
Layout::find_first_load_seg()
{
+ Output_segment* best = NULL;
for (Segment_list::const_iterator p = this->segment_list_.begin();
p != this->segment_list_.end();
++p)
@@ -1462,8 +1467,13 @@ Layout::find_first_load_seg()
&& ((*p)->flags() & elfcpp::PF_R) != 0
&& (parameters->options().omagic()
|| ((*p)->flags() & elfcpp::PF_W) == 0))
- return *p;
+ {
+ if (best == NULL || this->segment_precedes(*p, best))
+ best = *p;
+ }
}
+ if (best != NULL)
+ return best;
gold_assert(!this->script_options_->saw_phdrs_clause());
diff --git a/gold/options.h b/gold/options.h
index c5e24cc..c990961 100644
--- a/gold/options.h
+++ b/gold/options.h
@@ -808,6 +808,10 @@ class General_options
N_(" Only search directories specified on the command line."),
NULL);
+ DEFINE_bool(rosegment, options::TWO_DASHES, '\0', false,
+ N_(" Put read-only non-executable sections in their own segment"),
+ NULL);
+
DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "",
N_("Ignored for compatibility"), N_("EMULATION"));