gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / ld / ldexp.h

diff --git a/ld/ldexp.h b/ld/ldexp.h
index fa0dadad8d5dc663bd44b13d22513a1dc04ecc13..717e839bd41131703029f2a0386ceee7e941d2df 100644 (file)
--- a/ld/ldexp.h
+++ b/ld/ldexp.h
@@ -1,5 +1,5 @@
 /* ldexp.h -
-   Copyright (C) 1991-2014 Free Software Foundation, Inc.
+   Copyright (C) 1991-2020 Free Software Foundation, Inc.
 
    This file is part of the GNU Binutils.
 
@@ -66,7 +66,6 @@ typedef union etree_union {
     node_type type;
     const char *dst;
     union etree_union *src;
-    bfd_boolean defsym;
     bfd_boolean hidden;
   } assign;
   struct {
@@ -107,7 +106,9 @@ typedef enum
   /* During assignment of symbol values when relaxation in progress.  */
   lang_assigning_phase_enum,
   /* Final assignment of symbol values.  */
-  lang_final_phase_enum
+  lang_final_phase_enum,
+  /* Run after symbol values have been fixed, for lang_map.  */
+  lang_fixed_phase_enum
 } lang_phase_type;
 
 union lang_statement_union;
@@ -115,35 +116,59 @@ union lang_statement_union;
 enum phase_enum {
   /* We step through the first four states here as we see the
      associated linker script tokens.  */
-  exp_dataseg_none,
-  exp_dataseg_align_seen,
-  exp_dataseg_relro_seen,
-  exp_dataseg_end_seen,
+  exp_seg_none,
+  exp_seg_align_seen,
+  exp_seg_relro_seen,
+  exp_seg_end_seen,
   /* The last three states are final, and affect the value returned
-     by DATA_SEGMENT_ALIGN.  */
-  exp_dataseg_relro_adjust,
-  exp_dataseg_adjust,
-  exp_dataseg_done
+     by XXX_SEGMENT_ALIGN.  */
+  exp_seg_relro_adjust,
+  exp_seg_adjust,
+  exp_seg_done
 };
 
 enum relro_enum {
-  exp_dataseg_relro_none,
-  exp_dataseg_relro_start,
-  exp_dataseg_relro_end,
+  exp_seg_relro_none,
+  exp_seg_relro_start,
+  exp_seg_relro_end,
 };
 
+typedef struct {
+  enum phase_enum phase;
+
+  bfd_vma base, relro_offset, relro_end, end, pagesize, maxpagesize;
+
+  enum relro_enum relro;
+
+  union lang_statement_union *relro_start_stat;
+  union lang_statement_union *relro_end_stat;
+} seg_align_type;
+
 struct ldexp_control {
   /* Modify expression evaluation depending on this.  */
   lang_phase_type phase;
 
   /* Principally used for diagnostics.  */
   bfd_boolean assigning_to_dot;
+
+  /* Set if the current expression used "dot", SEGMENT_START or
+     ORIGIN, but not ABSOLUTE or combined symbols in a way that forces
+     an absolute result.  Used in tracking symbols assigned from dot
+     outside of output section statements, in order to later convert
+     them from absolute.  */
+  bfd_boolean rel_from_abs;
+
   /* If evaluating an assignment, the destination.  Cleared if an
      etree_name NAME matches this, to signal a self-assignment.
      Note that an etree_name DEFINED does not clear this field, nor
      does the false branch of a trinary expression.  */
   const char *assign_name;
 
+  /* If evaluating an assignment, the source if it is an expression
+     referencing single etree_name NAME, or a trinary expression where
+     the true branch references a single etree_name NAME.  */
+  struct bfd_link_hash_entry *assign_src;
+
   /* Working results.  */
   etree_value_type result;
   bfd_vma dot;
@@ -153,16 +178,7 @@ struct ldexp_control {
   asection *section;
 
   /* State machine and results for DATASEG.  */
-  struct {
-    enum phase_enum phase;
-
-    bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
-
-    enum relro_enum relro;
-
-    union lang_statement_union *relro_start_stat;
-    union lang_statement_union *relro_end_stat;
-  } dataseg;
+  seg_align_type dataseg;
 };
 
 extern struct ldexp_control expld;
@@ -215,13 +231,14 @@ void exp_print_tree
   (etree_type *);
 bfd_vma exp_get_vma
   (etree_type *, bfd_vma, char *);
-int exp_get_value_int
-  (etree_type *, int, char *);
+int exp_get_power
+  (etree_type *, char *);
 fill_type *exp_get_fill
   (etree_type *, fill_type *, char *);
 bfd_vma exp_get_abs_int
   (etree_type *, int, char *);
 void ldexp_init (void);
+void ldexp_finalize_syms (void);
 void ldexp_finish (void);
 
 #endif