1  /* 32-bit ELF support for ARM
       2     Copyright (C) 2019-2023 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);