gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gold / ehframe.h

diff --git a/gold/ehframe.h b/gold/ehframe.h
index f501634c2f62afa2679ddb19f962cabec423f834..3fe96002dc94dd3ab57a853081f2976d364565bf 100644 (file)
--- a/gold/ehframe.h
+++ b/gold/ehframe.h
@@ -1,6 +1,6 @@
 // ehframe.h -- handle exception frame sections for gold  -*- C++ -*-
 
-// Copyright (C) 2006-2017 Free Software Foundation, Inc.
+// Copyright (C) 2006-2020 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -203,9 +203,14 @@ class Fde
 
   // Return whether this FDE was added after merge mapping.
   bool
-  post_map()
+  post_map() const
   { return this->object_ == NULL && this->u_.from_linker.post_map; }
 
+  // Return whether this FDE was added for the PLT after merge mapping.
+  bool
+  post_map(const Output_data* plt) const
+  { return this->post_map() && this->u_.from_linker.plt == plt; }
+
   // Write the FDE to OVIEW starting at OFFSET.  FDE_ENCODING is the
   // encoding, from the CIE.  Round up the bytes to ADDRALIGN if
   // necessary.  ADDRESS is the virtual address of OVIEW.  Record the
@@ -217,8 +222,6 @@ class Fde
        section_offset_type cie_offset, unsigned char fde_encoding,
        Eh_frame_hdr* eh_frame_hdr);
 
-  bool operator==(const Fde&) const;
-
  private:
   // The object in which this FDE was seen.  This will be NULL for a
   // linker generated FDE.
@@ -300,9 +303,15 @@ class Cie
   add_fde(Fde* fde)
   { this->fdes_.push_back(fde); }
 
-  // Remove an FDE associated with this CIE.  Only the last FDE may be removed.
+  // Remove the last FDE associated with this CIE.
   void
-  remove_fde(const Fde*);
+  remove_fde()
+  { this->fdes_.pop_back(); }
+
+  // Access the last FDE associated with this CIE.
+  const Fde*
+  last_fde() const
+  { return this->fdes_.back(); }
 
   // Return the number of FDEs.
   unsigned int
@@ -411,12 +420,10 @@ class Eh_frame : public Output_section_data
                      size_t cie_length, const unsigned char* fde_data,
                      size_t fde_length);
 
-  // Remove unwind information for a PLT.  Only the last FDE added may
-  // be removed.
+  // Remove all post-map unwind information for a PLT.
   void
   remove_ehframe_for_plt(Output_data* plt, const unsigned char* cie_data,
-                        size_t cie_length, const unsigned char* fde_data,
-                        size_t fde_length);
+                        size_t cie_length);
 
   // Return the number of FDEs.
   unsigned int