PR gold/12525

	* ehframe.cc (Eh_frame_hdr::get_fde_pc): Handle DW_EH_PE_datarel.
	Assert if we see DW_EH_PE_indirect.
	* target.h (Target::ehframe_datarel_base): New function.
	(Target::do_ehframe_datarel_base): New target function.
	* i386.cc (Target_i386::do_ehframe_datarel_base): New function.
	* x86_64.cc (Target_x86_64::do_ehframe_datarel_base): New
	function.

1 files changed, 19 insertions, 0 deletions

diff --git a/gold/i386.cc b/gold/i386.cc
index 6bec81f..65ff05f 100644
--- a/gold/i386.cc
+++ b/gold/i386.cc
@@ -295,6 +295,10 @@ class Target_i386 : public Sized_target<32, false>
   do_can_check_for_function_pointers() const
   { return true; }
 
+  // Return the base for a DW_EH_PE_datarel encoding.
+  uint64_t
+  do_ehframe_datarel_base() const;
+
   // Return whether SYM is call to a non-split function.
   bool
   do_is_call_to_non_split(const Symbol* sym, unsigned int) const;
@@ -3267,6 +3271,21 @@ Target_i386::do_code_fill(section_size_type length) const
   return std::string(nops[length], length);
 }
 
+// Return the value to use for the base of a DW_EH_PE_datarel offset
+// in an FDE.  Solaris and SVR4 use DW_EH_PE_datarel because their
+// assembler can not write out the difference between two labels in
+// different sections, so instead of using a pc-relative value they
+// use an offset from the GOT.
+
+uint64_t
+Target_i386::do_ehframe_datarel_base() const
+{
+  gold_assert(this->global_offset_table_ != NULL);
+  Symbol* sym = this->global_offset_table_;
+  Sized_symbol<32>* ssym = static_cast<Sized_symbol<32>*>(sym);
+  return ssym->value();
+}
+
 // Return whether SYM should be treated as a call to a non-split
 // function.  We don't want that to be true of a call to a
 // get_pc_thunk function.