Use function view when iterating over block symbols

[binutils-gdb.git] / bfd / binary.c

diff --git a/bfd/binary.c b/bfd/binary.c
index fd68a8eaeba2fe0d9e1067cdc26c9678e42d127f..999d41c0611403c4ee34732fdce2d5e384f58f59 100644 (file)
--- a/bfd/binary.c
+++ b/bfd/binary.c
@@ -1,27 +1,28 @@
 /* BFD back-end for binary objects.
 /* BFD back-end for binary objects.

-   Copyright 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1994-2022 Free Software Foundation, Inc.

    Written by Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>
 
    Written by Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>
 

-This file is part of BFD, the Binary File Descriptor library.
+   This file is part of BFD, the Binary File Descriptor library.

 
 

-This program 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 2 of the License, or
-(at your option) any later version.
+   This program 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 3 of the License, or
+   (at your option) any later version.

 
 

-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.

 
 

-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */

 
 

-/* This is a BFD backend which may be used to write binary objects.
-   It may only be used for output, not input.  The intention is that
-   this may be used as an output format for objcopy in order to
-   generate raw binary data.
+/* This is a BFD backend which may be used to read or write binary
+   objects.  Historically, it was used as an output format for objcopy
+   in order to generate raw binary data, but is now used for other
+   purposes as well.

 
    This is very simple.  The only complication is that the real data
    will start at some address X, and in some cases we will not want to
 
    This is very simple.  The only complication is that the real data
    will start at some address X, and in some cases we will not want to


@@ -31,34 +32,19 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
    the file.  objcopy cooperates by specially setting the start
    address to zero by default.  */
 
    the file.  objcopy cooperates by specially setting the start
    address to zero by default.  */
 

-#include <ctype.h>
-
-#include "bfd.h"

 #include "sysdep.h"
 #include "sysdep.h"

+#include "bfd.h"
+#include "safe-ctype.h"

 #include "libbfd.h"
 
 /* Any bfd we create by reading a binary file has three symbols:
    a start symbol, an end symbol, and an absolute length symbol.  */
 #define BIN_SYMS 3
 
 #include "libbfd.h"
 
 /* Any bfd we create by reading a binary file has three symbols:
    a start symbol, an end symbol, and an absolute length symbol.  */
 #define BIN_SYMS 3
 

-static boolean binary_mkobject PARAMS ((bfd *));
-static const bfd_target *binary_object_p PARAMS ((bfd *));
-static boolean binary_get_section_contents
-  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-static long binary_get_symtab_upper_bound PARAMS ((bfd *));
-static char *mangle_name PARAMS ((bfd *, char *));
-static long binary_get_symtab PARAMS ((bfd *, asymbol **));
-static asymbol *binary_make_empty_symbol PARAMS ((bfd *));
-static void binary_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
-static boolean binary_set_section_contents
-  PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
-static int binary_sizeof_headers PARAMS ((bfd *, boolean));
-

 /* Create a binary object.  Invoked via bfd_set_format.  */
 
 /* Create a binary object.  Invoked via bfd_set_format.  */
 

-static boolean
-binary_mkobject (abfd)
-     bfd *abfd ATTRIBUTE_UNUSED;
+static bool
+binary_mkobject (bfd *abfd ATTRIBUTE_UNUSED)

 {
   return true;
 }
 {
   return true;
 }


@@ -67,12 +53,12 @@ binary_mkobject (abfd)
    was not defaulted.  That is, it must be explicitly specified as
    being binary.  */
 
    was not defaulted.  That is, it must be explicitly specified as
    being binary.  */
 

-static const bfd_target *
-binary_object_p (abfd)
-     bfd *abfd;
+static bfd_cleanup
+binary_object_p (bfd *abfd)

 {
   struct stat statbuf;
   asection *sec;
 {
   struct stat statbuf;
   asection *sec;

+  flagword flags;

 
   if (abfd->target_defaulted)
     {
 
   if (abfd->target_defaulted)
     {


@@ -90,35 +76,34 @@ binary_object_p (abfd)
     }
 
   /* One data section.  */
     }
 
   /* One data section.  */

-  sec = bfd_make_section (abfd, ".data");
+  flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS;
+  sec = bfd_make_section_with_flags (abfd, ".data", flags);

   if (sec == NULL)
     return NULL;
   if (sec == NULL)
     return NULL;

-  sec->flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS;

   sec->vma = 0;
   sec->vma = 0;

-  sec->_raw_size = statbuf.st_size;
+  sec->size = statbuf.st_size;

   sec->filepos = 0;
 
   sec->filepos = 0;
 

-  abfd->tdata.any = (PTR) sec;
+  abfd->tdata.any = (void *) sec;

 
 

-  return abfd->xvec;
+  return _bfd_no_cleanup;

 }
 
 }
 

-#define binary_close_and_cleanup _bfd_generic_close_and_cleanup
-#define binary_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
-#define binary_new_section_hook _bfd_generic_new_section_hook
+#define binary_close_and_cleanup     _bfd_generic_close_and_cleanup
+#define binary_bfd_free_cached_info  _bfd_generic_bfd_free_cached_info
+#define binary_new_section_hook      _bfd_generic_new_section_hook

 
 /* Get contents of the only section.  */
 
 
 /* Get contents of the only section.  */
 

-static boolean
-binary_get_section_contents (abfd, section, location, offset, count)
-     bfd *abfd;
-     asection *section ATTRIBUTE_UNUSED;
-     PTR location;
-     file_ptr offset;
-     bfd_size_type count;
+static bool
+binary_get_section_contents (bfd *abfd,
+                            asection *section,
+                            void * location,
+                            file_ptr offset,
+                            bfd_size_type count)

 {
 {

-  if (bfd_seek (abfd, offset, SEEK_SET) != 0
-      || bfd_read (location, 1, count, abfd) != count)
+  if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+      || bfd_bread (location, count, abfd) != count)

     return false;
   return true;
 }
     return false;
   return true;
 }


@@ -126,8 +111,7 @@ binary_get_section_contents (abfd, section, location, offset, count)
 /* Return the amount of memory needed to read the symbol table.  */
 
 static long
 /* Return the amount of memory needed to read the symbol table.  */
 
 static long

-binary_get_symtab_upper_bound (abfd)
-     bfd *abfd ATTRIBUTE_UNUSED;
+binary_get_symtab_upper_bound (bfd *abfd ATTRIBUTE_UNUSED)

 {
   return (BIN_SYMS + 1) * sizeof (asymbol *);
 }
 {
   return (BIN_SYMS + 1) * sizeof (asymbol *);
 }


@@ -135,11 +119,9 @@ binary_get_symtab_upper_bound (abfd)
 /* Create a symbol name based on the bfd's filename.  */
 
 static char *
 /* Create a symbol name based on the bfd's filename.  */
 
 static char *

-mangle_name (abfd, suffix)
-     bfd *abfd;
-     char *suffix;
+mangle_name (bfd *abfd, char *suffix)

 {
 {

-  int size;
+  bfd_size_type size;

   char *buf;
   char *p;
 
   char *buf;
   char *p;
 


@@ -155,7 +137,7 @@ mangle_name (abfd, suffix)
 
   /* Change any non-alphanumeric characters to underscores.  */
   for (p = buf; *p; p++)
 
   /* Change any non-alphanumeric characters to underscores.  */
   for (p = buf; *p; p++)

-    if (! isalnum ((unsigned char) *p))
+    if (! ISALNUM (*p))

       *p = '_';
 
   return buf;
       *p = '_';
 
   return buf;


@@ -164,17 +146,16 @@ mangle_name (abfd, suffix)
 /* Return the symbol table.  */
 
 static long
 /* Return the symbol table.  */
 
 static long

-binary_get_symtab (abfd, alocation)
-     bfd *abfd;
-     asymbol **alocation;
+binary_canonicalize_symtab (bfd *abfd, asymbol **alocation)

 {
   asection *sec = (asection *) abfd->tdata.any;
   asymbol *syms;
   unsigned int i;
 {
   asection *sec = (asection *) abfd->tdata.any;
   asymbol *syms;
   unsigned int i;

+  size_t amt = BIN_SYMS * sizeof (asymbol);

 
 

-  syms = (asymbol *) bfd_alloc (abfd, BIN_SYMS * sizeof (asymbol));
+  syms = (asymbol *) bfd_alloc (abfd, amt);

   if (syms == NULL)
   if (syms == NULL)

-    return false;
+    return -1;

 
   /* Start symbol.  */
   syms[0].the_bfd = abfd;
 
   /* Start symbol.  */
   syms[0].the_bfd = abfd;


@@ -187,7 +168,7 @@ binary_get_symtab (abfd, alocation)
   /* End symbol.  */
   syms[1].the_bfd = abfd;
   syms[1].name = mangle_name (abfd, "end");
   /* End symbol.  */
   syms[1].the_bfd = abfd;
   syms[1].name = mangle_name (abfd, "end");

-  syms[1].value = sec->_raw_size;
+  syms[1].value = sec->size;

   syms[1].flags = BSF_GLOBAL;
   syms[1].section = sec;
   syms[1].udata.p = NULL;
   syms[1].flags = BSF_GLOBAL;
   syms[1].section = sec;
   syms[1].udata.p = NULL;


@@ -195,7 +176,7 @@ binary_get_symtab (abfd, alocation)
   /* Size symbol.  */
   syms[2].the_bfd = abfd;
   syms[2].name = mangle_name (abfd, "size");
   /* Size symbol.  */
   syms[2].the_bfd = abfd;
   syms[2].name = mangle_name (abfd, "size");

-  syms[2].value = sec->_raw_size;
+  syms[2].value = sec->size;

   syms[2].flags = BSF_GLOBAL;
   syms[2].section = bfd_abs_section_ptr;
   syms[2].udata.p = NULL;
   syms[2].flags = BSF_GLOBAL;
   syms[2].section = bfd_abs_section_ptr;
   syms[2].udata.p = NULL;


@@ -207,69 +188,62 @@ binary_get_symtab (abfd, alocation)
   return BIN_SYMS;
 }
 
   return BIN_SYMS;
 }
 

-/* Make an empty symbol.  */
-
-static asymbol *
-binary_make_empty_symbol (abfd)
-     bfd *abfd;
-{
-  return (asymbol *) bfd_alloc (abfd, sizeof (asymbol));
-}
-
-#define binary_print_symbol _bfd_nosymbols_print_symbol
+#define binary_make_empty_symbol  _bfd_generic_make_empty_symbol
+#define binary_print_symbol       _bfd_nosymbols_print_symbol
+#define binary_get_symbol_version_string \
+  _bfd_nosymbols_get_symbol_version_string

 
 /* Get information about a symbol.  */
 
 static void
 
 /* Get information about a symbol.  */
 
 static void

-binary_get_symbol_info (ignore_abfd, symbol, ret)
-     bfd *ignore_abfd ATTRIBUTE_UNUSED;
-     asymbol *symbol;
-     symbol_info *ret;
+binary_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+                       asymbol *symbol,
+                       symbol_info *ret)

 {
   bfd_symbol_info (symbol, ret);
 }
 
 {
   bfd_symbol_info (symbol, ret);
 }
 

-#define binary_bfd_is_local_label_name bfd_generic_is_local_label_name
-#define binary_get_lineno _bfd_nosymbols_get_lineno
-#define binary_find_nearest_line _bfd_nosymbols_find_nearest_line
-#define binary_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
-#define binary_read_minisymbols _bfd_generic_read_minisymbols
-#define binary_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
-
-#define binary_get_reloc_upper_bound \
-  ((long (*) PARAMS ((bfd *, asection *))) bfd_0l)
-#define binary_canonicalize_reloc \
-  ((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l)
-#define binary_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
+#define binary_bfd_is_local_label_name     bfd_generic_is_local_label_name
+#define binary_get_lineno                 _bfd_nosymbols_get_lineno
+#define binary_find_nearest_line          _bfd_nosymbols_find_nearest_line
+#define binary_find_line                  _bfd_nosymbols_find_line
+#define binary_find_inliner_info          _bfd_nosymbols_find_inliner_info
+#define binary_bfd_make_debug_symbol      _bfd_nosymbols_bfd_make_debug_symbol
+#define binary_read_minisymbols                   _bfd_generic_read_minisymbols
+#define binary_minisymbol_to_symbol       _bfd_generic_minisymbol_to_symbol
+#define binary_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false

 
 /* Set the architecture of a binary file.  */
 #define binary_set_arch_mach _bfd_generic_set_arch_mach
 
 /* Write section contents of a binary file.  */
 
 
 /* Set the architecture of a binary file.  */
 #define binary_set_arch_mach _bfd_generic_set_arch_mach
 
 /* Write section contents of a binary file.  */
 

-static boolean
-binary_set_section_contents (abfd, sec, data, offset, size)
-     bfd *abfd;
-     asection *sec;
-     PTR data;
-     file_ptr offset;
-     bfd_size_type size;
+static bool
+binary_set_section_contents (bfd *abfd,
+                            asection *sec,
+                            const void * data,
+                            file_ptr offset,
+                            bfd_size_type size)

 {
 {

+  if (size == 0)
+    return true;
+

   if (! abfd->output_has_begun)
     {
   if (! abfd->output_has_begun)
     {

-      boolean found_low;
+      bool found_low;

       bfd_vma low;
       asection *s;
 
       /* The lowest section LMA sets the virtual address of the start
       bfd_vma low;
       asection *s;
 
       /* The lowest section LMA sets the virtual address of the start

-         of the file.  We use this to set the file position of all the
-         sections.  */
+        of the file.  We use this to set the file position of all the
+        sections.  */

       found_low = false;
       low = 0;
       for (s = abfd->sections; s != NULL; s = s->next)
        if (((s->flags
              & (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_NEVER_LOAD))
             == (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC))
       found_low = false;
       low = 0;
       for (s = abfd->sections; s != NULL; s = s->next)
        if (((s->flags
              & (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_NEVER_LOAD))
             == (SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC))

+           && (s->size > 0)

            && (! found_low || s->lma < low))
          {
            low = s->lma;
            && (! found_low || s->lma < low))
          {
            low = s->lma;


@@ -278,13 +252,16 @@ binary_set_section_contents (abfd, sec, data, offset, size)
 
       for (s = abfd->sections; s != NULL; s = s->next)
        {
 
       for (s = abfd->sections; s != NULL; s = s->next)
        {

-         s->filepos = s->lma - low;
+         unsigned int opb = bfd_octets_per_byte (abfd, s);
+
+         s->filepos = (s->lma - low) * opb;

 
          /* Skip following warning check for sections that will not
             occupy file space.  */
          if ((s->flags
               & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_NEVER_LOAD))
 
          /* Skip following warning check for sections that will not
             occupy file space.  */
          if ((s->flags
               & (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_NEVER_LOAD))

-             != (SEC_HAS_CONTENTS | SEC_ALLOC))
+             != (SEC_HAS_CONTENTS | SEC_ALLOC)
+             || (s->size == 0))

            continue;
 
          /* If attempting to generate a binary file from a bfd with
            continue;
 
          /* If attempting to generate a binary file from a bfd with


@@ -294,10 +271,11 @@ binary_set_section_contents (abfd, sec, data, offset, size)
             have.  */
 
          if (s->filepos < 0)
             have.  */
 
          if (s->filepos < 0)

-           (*_bfd_error_handler)
-             (_("Warning: Writing section `%s' to huge (ie negative) file offset 0x%lx."),
-              bfd_get_section_name (abfd, s),
-              (unsigned long) s->filepos);
+           _bfd_error_handler
+             /* xgettext:c-format */
+             (_("warning: writing section `%pA' at huge (ie negative) "
+                "file offset"),
+              s);

        }
 
       abfd->output_has_begun = true;
        }
 
       abfd->output_has_begun = true;


@@ -317,23 +295,32 @@ binary_set_section_contents (abfd, sec, data, offset, size)
 /* No space is required for header information.  */
 
 static int
 /* No space is required for header information.  */
 
 static int

-binary_sizeof_headers (abfd, exec)
-     bfd *abfd ATTRIBUTE_UNUSED;
-     boolean exec ATTRIBUTE_UNUSED;
+binary_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
+                      struct bfd_link_info *info ATTRIBUTE_UNUSED)

 {
   return 0;
 }
 
 {
   return 0;
 }
 

-#define binary_bfd_get_relocated_section_contents \
-  bfd_generic_get_relocated_section_contents
-#define binary_bfd_relax_section bfd_generic_relax_section
-#define binary_bfd_gc_sections bfd_generic_gc_sections
-#define binary_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
-#define binary_bfd_link_add_symbols _bfd_generic_link_add_symbols
-#define binary_bfd_final_link _bfd_generic_final_link
-#define binary_bfd_link_split_section _bfd_generic_link_split_section
-#define binary_get_section_contents_in_window \
-  _bfd_generic_get_section_contents_in_window
+#define binary_bfd_get_relocated_section_contents  bfd_generic_get_relocated_section_contents
+#define binary_bfd_relax_section                  bfd_generic_relax_section
+#define binary_bfd_gc_sections                    bfd_generic_gc_sections
+#define binary_bfd_lookup_section_flags                   bfd_generic_lookup_section_flags
+#define binary_bfd_merge_sections                 bfd_generic_merge_sections
+#define binary_bfd_is_group_section               bfd_generic_is_group_section
+#define binary_bfd_group_name                     bfd_generic_group_name
+#define binary_bfd_discard_group                  bfd_generic_discard_group
+#define binary_section_already_linked            _bfd_generic_section_already_linked
+#define binary_bfd_define_common_symbol                   bfd_generic_define_common_symbol
+#define binary_bfd_link_hide_symbol               _bfd_generic_link_hide_symbol
+#define binary_bfd_define_start_stop              bfd_generic_define_start_stop
+#define binary_bfd_link_hash_table_create        _bfd_generic_link_hash_table_create
+#define binary_bfd_link_just_syms                _bfd_generic_link_just_syms
+#define binary_bfd_copy_link_hash_symbol_type    _bfd_generic_copy_link_hash_symbol_type
+#define binary_bfd_link_add_symbols              _bfd_generic_link_add_symbols
+#define binary_bfd_final_link                    _bfd_generic_final_link
+#define binary_bfd_link_split_section            _bfd_generic_link_split_section
+#define binary_get_section_contents_in_window    _bfd_generic_get_section_contents_in_window
+#define binary_bfd_link_check_relocs             _bfd_generic_link_check_relocs

 
 const bfd_target binary_vec =
 {
 
 const bfd_target binary_vec =
 {


@@ -347,6 +334,8 @@ const bfd_target binary_vec =
   0,                           /* symbol_leading_char */
   ' ',                         /* ar_pad_char */
   16,                          /* ar_max_namelen */
   0,                           /* symbol_leading_char */
   ' ',                         /* ar_pad_char */
   16,                          /* ar_max_namelen */

+  255,                         /* match priority.  */
+  TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols.  */

   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* data */
   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* data */


@@ -355,21 +344,21 @@ const bfd_target binary_vec =
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* hdrs */
   {                            /* bfd_check_format */
     _bfd_dummy_target,
   bfd_getb16, bfd_getb_signed_16, bfd_putb16,  /* hdrs */
   {                            /* bfd_check_format */
     _bfd_dummy_target,

-    binary_object_p,           /* bfd_check_format */
+    binary_object_p,

     _bfd_dummy_target,
     _bfd_dummy_target,
   },
   {                            /* bfd_set_format */
     _bfd_dummy_target,
     _bfd_dummy_target,
   },
   {                            /* bfd_set_format */

-    bfd_false,
+    _bfd_bool_bfd_false_error,

     binary_mkobject,
     binary_mkobject,

-    bfd_false,
-    bfd_false,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_false_error,

   },
   {                            /* bfd_write_contents */
   },
   {                            /* bfd_write_contents */

-    bfd_false,
-    bfd_true,
-    bfd_false,
-    bfd_false,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_true,
+    _bfd_bool_bfd_false_error,
+    _bfd_bool_bfd_false_error,

   },
 
   BFD_JUMP_TABLE_GENERIC (binary),
   },
 
   BFD_JUMP_TABLE_GENERIC (binary),


@@ -377,7 +366,7 @@ const bfd_target binary_vec =
   BFD_JUMP_TABLE_CORE (_bfd_nocore),
   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
   BFD_JUMP_TABLE_SYMBOLS (binary),
   BFD_JUMP_TABLE_CORE (_bfd_nocore),
   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
   BFD_JUMP_TABLE_SYMBOLS (binary),

-  BFD_JUMP_TABLE_RELOCS (binary),
+  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),

   BFD_JUMP_TABLE_WRITE (binary),
   BFD_JUMP_TABLE_LINK (binary),
   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
   BFD_JUMP_TABLE_WRITE (binary),
   BFD_JUMP_TABLE_LINK (binary),
   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),