bfd/elf32-arm.h

   1 /* 32-bit ELF support for ARM
   2    Copyright (C) 2019-2024 Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21
  22 /* ARM VFP11 erratum workaround support.  */
  23 typedef enum
  24 {
  25   BFD_ARM_VFP11_FIX_DEFAULT,
  26   BFD_ARM_VFP11_FIX_NONE,
  27   BFD_ARM_VFP11_FIX_SCALAR,
  28   BFD_ARM_VFP11_FIX_VECTOR
  29 } bfd_arm_vfp11_fix;
  30
  31 extern void bfd_elf32_arm_init_maps
  32   (bfd *);
  33
  34 extern void bfd_elf32_arm_set_vfp11_fix
  35   (bfd *, struct bfd_link_info *);
  36
  37 extern void bfd_elf32_arm_set_cortex_a8_fix
  38   (bfd *, struct bfd_link_info *);
  39
  40 extern bool bfd_elf32_arm_vfp11_erratum_scan
  41   (bfd *, struct bfd_link_info *);
  42
  43 extern void bfd_elf32_arm_vfp11_fix_veneer_locations
  44   (bfd *, struct bfd_link_info *);
  45
  46 /* ARM STM STM32L4XX erratum workaround support.  */
  47 typedef enum
  48 {
  49   BFD_ARM_STM32L4XX_FIX_NONE,
  50   BFD_ARM_STM32L4XX_FIX_DEFAULT,
  51   BFD_ARM_STM32L4XX_FIX_ALL
  52 } bfd_arm_stm32l4xx_fix;
  53
  54 extern void bfd_elf32_arm_set_stm32l4xx_fix
  55   (bfd *, struct bfd_link_info *);
  56
  57 extern bool bfd_elf32_arm_stm32l4xx_erratum_scan
  58   (bfd *, struct bfd_link_info *);
  59
  60 extern void bfd_elf32_arm_stm32l4xx_fix_veneer_locations
  61   (bfd *, struct bfd_link_info *);
  62
  63 /* ELF ARM Interworking support.  Called from linker.  */
  64 extern bool bfd_elf32_arm_allocate_interworking_sections
  65   (struct bfd_link_info *);
  66
  67 extern bool bfd_elf32_arm_process_before_allocation
  68   (bfd *, struct bfd_link_info *);
  69
  70 struct elf32_arm_params {
  71   char *thumb_entry_symbol;
  72   int byteswap_code;
  73   int target1_is_rel;
  74   char * target2_type;
  75   int fix_v4bx;
  76   int use_blx;
  77   bfd_arm_vfp11_fix vfp11_denorm_fix;
  78   bfd_arm_stm32l4xx_fix stm32l4xx_fix;
  79   int no_enum_size_warning;
  80   int no_wchar_size_warning;
  81   int pic_veneer;
  82   int fix_cortex_a8;
  83   int fix_arm1176;
  84   int merge_exidx_entries;
  85   int cmse_implib;
  86   bfd *in_implib_bfd;
  87 };
  88
  89 void bfd_elf32_arm_set_target_params
  90   (bfd *, struct bfd_link_info *, struct elf32_arm_params *);
  91
  92 extern bool bfd_elf32_arm_get_bfd_for_interworking
  93   (bfd *, struct bfd_link_info *);
  94
  95 extern bool bfd_elf32_arm_add_glue_sections_to_bfd
  96   (bfd *, struct bfd_link_info *);
  97
  98 extern void bfd_elf32_arm_keep_private_stub_output_sections
  99   (struct bfd_link_info *);
 100
 101 extern void bfd_elf32_arm_set_byteswap_code
 102   (struct bfd_link_info *, int);
 103
 104 extern void bfd_elf32_arm_use_long_plt (void);
 105
 106 /* ARM stub generation support.  Called from the linker.  */
 107 extern int elf32_arm_setup_section_lists
 108   (bfd *, struct bfd_link_info *);
 109 extern void elf32_arm_next_input_section
 110   (struct bfd_link_info *, struct bfd_section *);
 111 extern bool elf32_arm_size_stubs
 112   (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
 113    struct bfd_section * (*) (const char *, struct bfd_section *,
 114                              struct bfd_section *, unsigned int),
 115    void (*) (void));
 116 extern bool elf32_arm_build_stubs
 117   (struct bfd_link_info *);
 118
 119 /* ARM unwind section editing support.  */
 120 extern bool elf32_arm_fix_exidx_coverage
 121 (struct bfd_section **, unsigned int, struct bfd_link_info *, bool);