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, 13 insertions, 0 deletions

diff --git a/gold/target.h b/gold/target.h
index f9b8c04..c2ccc63 100644
--- a/gold/target.h
+++ b/gold/target.h
@@ -276,6 +276,15 @@ class Target
   section_may_have_icf_unsafe_pointers(const char* section_name) const
   { return this->do_section_may_have_icf_unsafe_pointers(section_name); }
 
+  // Return the base to use for the PC value in an FDE when it is
+  // encoded using DW_EH_PE_datarel.  This does not appear to be
+  // documented anywhere, but it is target specific.  Any use of
+  // DW_EH_PE_datarel in gcc requires defining a special macro
+  // (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX) to output the value.
+  uint64_t
+  ehframe_datarel_base() const
+  { return this->do_ehframe_datarel_base(); }
+
   // Return true if a reference to SYM from a reloc of type R_TYPE
   // means that the current function may call an object compiled
   // without -fsplit-stack.  SYM is known to be defined in an object
@@ -521,6 +530,10 @@ class Target
 	    && !is_prefix_of(".eh_frame", section_name));
   }
 
+  virtual uint64_t
+  do_ehframe_datarel_base() const
+  { gold_unreachable(); }
+
   // Virtual function which may be overridden by the child class.  The
   // default implementation is that any function not defined by the
   // ABI is a call to a non-split function.