RISC-V: Support assembler modifier %got_pcrel_hi.

[deliverable/binutils-gdb.git] / gas / config / obj-elf.h

diff --git a/gas/config/obj-elf.h b/gas/config/obj-elf.h
index 2f4bc5f977a54507c6965a41c532fc8338ee8e06..54af9ebc0e22129312b882eff5b26edd9ca39620 100644 (file)
--- a/gas/config/obj-elf.h
+++ b/gas/config/obj-elf.h
@@ -1,11 +1,11 @@
 /* ELF object file format.
 /* ELF object file format.

-   Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1992-2020 Free Software Foundation, Inc.

 
    This file is part of GAS, the GNU Assembler.
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
 
    This file is part of GAS, the GNU Assembler.
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

-   the Free Software Foundation; either version 1, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)

    any later version.
 
    GAS is distributed in the hope that it will be useful,
    any later version.
 
    GAS is distributed in the hope that it will be useful,


@@ -15,9 +15,8 @@
 
    You should have received a copy of the GNU General Public License
    along with GAS; see the file COPYING.  If not, write to the Free
 
    You should have received a copy of the GNU General Public License
    along with GAS; see the file COPYING.  If not, write to the Free

-   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.  */
-
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */

 
 /* HP PA-RISC support was contributed by the Center for Software Science
    at the University of Utah.  */
 
 /* HP PA-RISC support was contributed by the Center for Software Science
    at the University of Utah.  */


@@ -27,139 +26,205 @@
 
 #define OBJ_ELF 1
 
 
 #define OBJ_ELF 1
 

-#define OUTPUT_FLAVOR bfd_target_elf_flavour
+/* Note that all macros in this file should be wrapped in #ifndef, for
+   sake of obj-multi.h which includes this file.  */

 
 

-#include <bfd.h>
+#ifndef OUTPUT_FLAVOR
+#define OUTPUT_FLAVOR bfd_target_elf_flavour
+#endif

 
 #define BYTES_IN_WORD 4                /* for now */
 #include "bfd/elf-bfd.h"
 
 
 #define BYTES_IN_WORD 4                /* for now */
 #include "bfd/elf-bfd.h"
 

-/* Additional information we keep for each symbol.  */
+#include "targ-cpu.h"
+
+#ifdef TC_ALPHA
+#define ECOFF_DEBUGGING (alpha_flag_mdebug > 0)
+extern int alpha_flag_mdebug;
+#endif

 
 

-/* FIXME: For some reason, this structure is needed both here and in
-   obj-multi.h.  */
-#ifndef OBJ_SYMFIELD_TYPE
+/* For now, always set ECOFF_DEBUGGING for a MIPS target.  */
+#ifdef TC_MIPS
+#define ECOFF_DEBUGGING mips_flag_mdebug
+extern int mips_flag_mdebug;
+#endif /* TC_MIPS */
+
+#ifdef OBJ_MAYBE_ECOFF
+#ifndef ECOFF_DEBUGGING
+#define ECOFF_DEBUGGING 1
+#endif
+#endif
+
+/* Additional information we keep for each symbol.  */

 struct elf_obj_sy
 {
 struct elf_obj_sy
 {

+  /* Whether the symbol has been marked as local.  */
+  int local;
+

   /* Use this to keep track of .size expressions that involve
      differences that we can't compute yet.  */
   expressionS *size;
 
   /* The name specified by the .symver directive.  */
   char *versioned_name;
   /* Use this to keep track of .size expressions that involve
      differences that we can't compute yet.  */
   expressionS *size;
 
   /* The name specified by the .symver directive.  */
   char *versioned_name;

-};
-#endif
-
-#define OBJ_SYMFIELD_TYPE struct elf_obj_sy

 
 

-/* Symbol fields used by the ELF back end.  */
-#define ELF_TARGET_SYMBOL_FIELDS int local:1;
+#ifdef ECOFF_DEBUGGING
+  /* If we are generating ECOFF debugging information, we need some
+     additional fields for each symbol.  */
+  struct efdr *ecoff_file;
+  struct localsym *ecoff_symbol;
+  valueT ecoff_extern_size;
+#endif
+};

 
 

-/* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead.  */
-#define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS
+/* Match section group name, the sh_info field and the section_id
+   field.  */
+struct elf_section_match
+{
+  const char *group_name;
+  const char *linked_to_symbol_name;
+  unsigned int info;
+  unsigned int section_id;
+  flagword flags;
+};

 
 

-#include "targ-cpu.h"
+#define OBJ_SYMFIELD_TYPE struct elf_obj_sy

 
 #ifndef FALSE
 #define FALSE 0
 #define TRUE  !FALSE
 #endif
 
 
 #ifndef FALSE
 #define FALSE 0
 #define TRUE  !FALSE
 #endif
 

+#ifndef obj_begin

 #define obj_begin() elf_begin ()
 #define obj_begin() elf_begin ()

-extern void elf_begin PARAMS ((void));
+#endif
+extern void elf_begin (void);
+
+#ifndef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX '.'
+#endif

 
 /* should be conditional on address size! */
 
 /* should be conditional on address size! */

-#define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
+#define elf_symbol(asymbol) ((elf_symbol_type *) (&(asymbol)->the_bfd))

 
 

-#define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
+#ifndef S_GET_SIZE
+#define S_GET_SIZE(S) \
+  (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size)
+#endif
+#ifndef S_SET_SIZE

 #define S_SET_SIZE(S,V) \
 #define S_SET_SIZE(S,V) \

-  (elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))
+  (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size = (V))
+#endif

 
 

-#define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
+#ifndef S_GET_ALIGN
+#define S_GET_ALIGN(S) \
+  (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value)
+#endif
+#ifndef S_SET_ALIGN

 #define S_SET_ALIGN(S,V) \
 #define S_SET_ALIGN(S,V) \

-  (elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))
+  (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V))
+#endif

 
 

-#define S_GET_OTHER(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_other)
+int elf_s_get_other (symbolS *);
+#ifndef S_GET_OTHER
+#define S_GET_OTHER(S) (elf_s_get_other (S))
+#endif
+#ifndef S_SET_OTHER

 #define S_SET_OTHER(S,V) \
 #define S_SET_OTHER(S,V) \

-  (elf_symbol ((S)->bsym)->internal_elf_sym.st_other = (V))
+  (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other = (V))
+#endif

 
 extern asection *gdb_section;
 
 
 extern asection *gdb_section;
 

+#ifndef obj_frob_file

 #define obj_frob_file  elf_frob_file
 #define obj_frob_file  elf_frob_file

-extern void elf_frob_file PARAMS ((void));
+#endif
+extern void elf_frob_file (void);

 
 

-#define obj_frob_file_after_relocs  elf_frob_file_after_relocs
-extern void elf_frob_file_after_relocs PARAMS ((void));
+#ifndef obj_frob_file_before_adjust
+#define obj_frob_file_before_adjust  elf_frob_file_before_adjust
+#endif
+extern void elf_frob_file_before_adjust (void);

 
 

-#define obj_app_file elf_file_symbol
-extern void elf_file_symbol PARAMS ((char *));
+#ifndef obj_frob_file_after_relocs
+#define obj_frob_file_after_relocs  elf_frob_file_after_relocs
+#endif
+extern void elf_frob_file_after_relocs (void);

 
 

-extern void obj_elf_section_change_hook PARAMS ((void));
+/* If the target doesn't have special processing for labels, take care of
+   dwarf2 output at the object file level.  */
+#ifndef tc_frob_label
+#include "dwarf2dbg.h"
+#define obj_frob_label  dwarf2_emit_label
+#endif

 
 

-extern void obj_elf_section PARAMS ((int));
-extern void obj_elf_previous PARAMS ((int));
-extern void obj_elf_version PARAMS ((int));
+#ifndef obj_app_file
+#define obj_app_file elf_file_symbol
+#endif
+extern void elf_file_symbol (const char *, int);
+
+extern void obj_elf_section_change_hook (void);
+
+extern void obj_elf_section (int);
+extern const char * obj_elf_section_name (void);
+extern void obj_elf_previous (int);
+extern void obj_elf_version (int);
+extern void obj_elf_common (int);
+extern void obj_elf_data (int);
+extern void obj_elf_text (int);
+extern void obj_elf_change_section
+  (const char *, unsigned int, bfd_vma, int, struct elf_section_match *,
+   int, int);
+extern void obj_elf_vtable_inherit (int);
+extern void obj_elf_vtable_entry (int);
+extern struct fix * obj_elf_get_vtable_inherit (void);
+extern struct fix * obj_elf_get_vtable_entry (void);
+extern bfd_boolean obj_elf_seen_attribute
+  (int, unsigned int);
+extern int obj_elf_vendor_attribute (int);

 
 /* BFD wants to write the udata field, which is a no-no for the
 
 /* BFD wants to write the udata field, which is a no-no for the

-   globally defined sections.  */
+   predefined section symbols in bfd/section.c.  They are read-only.  */
+#ifndef obj_sec_sym_ok_for_reloc

 #define obj_sec_sym_ok_for_reloc(SEC)  ((SEC)->owner != 0)
 #define obj_sec_sym_ok_for_reloc(SEC)  ((SEC)->owner != 0)

+#endif
+
+void elf_obj_read_begin_hook (void);
+#ifndef obj_read_begin_hook
+#define obj_read_begin_hook    elf_obj_read_begin_hook
+#endif
+
+void elf_obj_symbol_new_hook (symbolS *);
+#ifndef obj_symbol_new_hook
+#define obj_symbol_new_hook    elf_obj_symbol_new_hook
+#endif

 
 

-/* When setting one symbol equal to another, by default we probably
-   want them to have the same "size", whatever it means in the current
-   context.  */
-#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC)                   \
-do                                                             \
-  {                                                            \
-    if ((SRC)->sy_obj.size)                                    \
-      {                                                                \
-       if ((DEST)->sy_obj.size == NULL)                        \
-         (DEST)->sy_obj.size =                                 \
-           (expressionS *) xmalloc (sizeof (expressionS));     \
-       *(DEST)->sy_obj.size = *(SRC)->sy_obj.size;             \
-      }                                                                \
-    else                                                       \
-      {                                                                \
-       if ((DEST)->sy_obj.size != NULL)                        \
-         free ((DEST)->sy_obj.size);                           \
-       (DEST)->sy_obj.size = NULL;                             \
-      }                                                                \
-    S_SET_SIZE ((DEST), S_GET_SIZE (SRC));                     \
-    S_SET_OTHER ((DEST), S_GET_OTHER (SRC));                   \
-  }                                                            \
-while (0)
+void elf_copy_symbol_attributes (symbolS *, symbolS *);
+#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
+#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
+  (elf_copy_symbol_attributes (DEST, SRC))
+#endif
+
+void elf_adjust_symtab (void);
+#ifndef obj_adjust_symtab
+#define obj_adjust_symtab      elf_adjust_symtab
+#endif
+
+#ifndef SEPARATE_STAB_SECTIONS
+/* Avoid ifndef each separate macro setting by wrapping the whole of the
+   stab group on the assumption that whoever sets SEPARATE_STAB_SECTIONS
+   caters to ECOFF_DEBUGGING and the right setting of INIT_STAB_SECTIONS
+   and OBJ_PROCESS_STAB too, without needing the tweaks below.  */

 
 /* Stabs go in a separate section.  */
 #define SEPARATE_STAB_SECTIONS 1
 
 /* We need 12 bytes at the start of the section to hold some initial
    information.  */
 
 /* Stabs go in a separate section.  */
 #define SEPARATE_STAB_SECTIONS 1
 
 /* We need 12 bytes at the start of the section to hold some initial
    information.  */

-extern void obj_elf_init_stab_section PARAMS ((segT));
+extern void obj_elf_init_stab_section (segT);

 #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
 
 #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
 

-#ifdef TC_ALPHA
-#define ECOFF_DEBUGGING alpha_flag_mdebug
-extern int alpha_flag_mdebug;
-#endif
-
-/* For now, always set ECOFF_DEBUGGING for a MIPS target.  */
-#ifdef TC_MIPS
-#ifdef MIPS_STABS_ELF
-#define ECOFF_DEBUGGING 0
-#else
-#define ECOFF_DEBUGGING 1
-#endif /* MIPS_STABS_ELF */
-#endif /* TC_MIPS */
-

 #ifdef ECOFF_DEBUGGING
 #ifdef ECOFF_DEBUGGING

-/* If we are generating ECOFF debugging information, we need some
-   additional fields for each symbol.  */
-#undef TARGET_SYMBOL_FIELDS
-#define TARGET_SYMBOL_FIELDS \
-  ELF_TARGET_SYMBOL_FIELDS \
-  struct efdr *ecoff_file; \
-  struct localsym *ecoff_symbol; \
-  valueT ecoff_extern_size;
-

 /* We smuggle stabs in ECOFF rather than using a separate section.
    The Irix linker can not handle a separate stabs section.  */
 
 /* We smuggle stabs in ECOFF rather than using a separate section.
    The Irix linker can not handle a separate stabs section.  */
 


@@ -168,27 +233,34 @@ extern int alpha_flag_mdebug;
 
 #undef  INIT_STAB_SECTION
 #define INIT_STAB_SECTION(seg) \
 
 #undef  INIT_STAB_SECTION
 #define INIT_STAB_SECTION(seg) \

-  ((void)(ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0)))
+  ((void) (ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0)))

 
 

+#undef OBJ_PROCESS_STAB

 #define OBJ_PROCESS_STAB(seg, what, string, type, other, desc)         \
   if (ECOFF_DEBUGGING)                                                 \
     ecoff_stab ((seg), (what), (string), (type), (other), (desc))
 #endif /* ECOFF_DEBUGGING */
 
 #define OBJ_PROCESS_STAB(seg, what, string, type, other, desc)         \
   if (ECOFF_DEBUGGING)                                                 \
     ecoff_stab ((seg), (what), (string), (type), (other), (desc))
 #endif /* ECOFF_DEBUGGING */
 

-extern void elf_frob_symbol PARAMS ((struct symbol *, int *));
+#endif /* SEPARATE_STAB_SECTIONS not defined.  */
+
+extern void elf_frob_symbol (symbolS *, int *);

 #ifndef obj_frob_symbol
 #define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
 #endif
 
 #ifndef obj_frob_symbol
 #define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
 #endif
 

-extern void elf_pop_insert PARAMS ((void));
+extern void elf_pop_insert (void);
+#ifndef obj_pop_insert

 #define obj_pop_insert()       elf_pop_insert()
 #define obj_pop_insert()       elf_pop_insert()

+#endif

 
 #ifndef OBJ_MAYBE_ELF
 
 #ifndef OBJ_MAYBE_ELF

+/* If OBJ_MAYBE_ELF then obj-multi.h will define obj_ecoff_set_ext.  */

 #define obj_ecoff_set_ext elf_ecoff_set_ext
 #define obj_ecoff_set_ext elf_ecoff_set_ext

-#ifdef ANSI_PROTOTYPES

 struct ecoff_extr;
 struct ecoff_extr;

+extern void elf_ecoff_set_ext (symbolS *, struct ecoff_extr *);

 #endif
 #endif

-extern void elf_ecoff_set_ext PARAMS ((struct symbol *, struct ecoff_extr *));
-#endif
+extern asection *elf_com_section_ptr;
+extern symbolS * elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP,
+                                  addressT size);

 
 #endif /* _OBJ_ELF_H */
 
 #endif /* _OBJ_ELF_H */