/* 32-bit ELF support for TI PRU.
- Copyright (C) 2014-2020 Free Software Foundation, Inc.
+ Copyright (C) 2014-2023 Free Software Foundation, Inc.
Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
Based on elf32-nios2.c
} while (0)
/* Enable debugging printout at stdout with this variable. */
-static bfd_boolean debug_relax = FALSE;
+static bool debug_relax = false;
/* Forward declarations. */
static bfd_reloc_status_type pru_elf32_pmem_relocate
/* No relocation. */
HOWTO (R_PRU_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 3, /* bitsize */
- FALSE, /* pc_relative */
+ 0, /* size */
+ 0, /* bitsize */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PRU_NONE", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_16_PMEM,
2,
- 1, /* short */
+ 2, /* short */
32,
- FALSE,
+ false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_PRU_16_PMEM",
- FALSE,
+ false,
0, /* src_mask */
0xffff,
- FALSE),
+ false),
HOWTO (R_PRU_U16_PMEMIMM,
2,
- 2,
+ 4,
32,
- FALSE,
+ false,
8,
complain_overflow_unsigned,
pru_elf32_pmem_relocate,
"R_PRU_U16_PMEMIMM",
- FALSE,
+ false,
0, /* src_mask */
0x00ffff00,
- FALSE),
+ false),
HOWTO (R_PRU_BFD_RELOC_16,
0,
- 1, /* short */
+ 2, /* short */
16,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_PRU_BFD_RELOC16",
- FALSE,
+ false,
0, /* src_mask */
0x0000ffff,
- FALSE),
+ false),
/* 16-bit unsigned immediate relocation. */
HOWTO (R_PRU_U16, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
8, /* bitpos */
complain_overflow_unsigned, /* complain on overflow */
bfd_elf_generic_reloc, /* special function */
"R_PRU_U16", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0x00ffff00, /* dest_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_32_PMEM,
2,
- 2, /* long */
+ 4, /* long */
32,
- FALSE,
+ false,
0,
complain_overflow_dont,
pru_elf32_pmem_relocate,
"R_PRU_32_PMEM",
- FALSE,
+ false,
0, /* src_mask */
0xffffffff,
- FALSE),
+ false),
HOWTO (R_PRU_BFD_RELOC_32,
0,
- 2, /* long */
+ 4, /* long */
32,
- FALSE,
+ false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_PRU_BFD_RELOC32",
- FALSE,
+ false,
0, /* src_mask */
0xffffffff,
- FALSE),
+ false),
HOWTO (R_PRU_S10_PCREL,
2,
- 2,
+ 4,
10,
- TRUE,
+ true,
0,
complain_overflow_bitfield,
pru_elf32_s10_pcrel_relocate,
"R_PRU_S10_PCREL",
- FALSE,
+ false,
0, /* src_mask */
0x060000ff,
- TRUE),
+ true),
HOWTO (R_PRU_U8_PCREL,
2,
- 2,
+ 4,
8,
- TRUE,
+ true,
0,
complain_overflow_unsigned,
pru_elf32_u8_pcrel_relocate,
"R_PRU_U8_PCREL",
- FALSE,
+ false,
0, /* src_mask */
0x000000ff,
- TRUE),
+ true),
HOWTO (R_PRU_LDI32,
0, /* rightshift */
- 4, /* size (4 = 8bytes) */
+ 8, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_unsigned, /* complain on overflow */
pru_elf32_ldi32_relocate, /* special function */
"R_PRU_LDI32", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dest_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
/* GNU-specific relocations. */
HOWTO (R_PRU_GNU_BFD_RELOC_8,
0,
- 0, /* byte */
+ 1, /* byte */
8,
- FALSE,
+ false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_PRU_BFD_RELOC8",
- FALSE,
+ false,
0, /* src_mask */
0x000000ff,
- FALSE),
+ false),
HOWTO (R_PRU_GNU_DIFF8, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 1, /* size */
8, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_pru_diff_relocate, /* special_function */
"R_PRU_DIFF8", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_GNU_DIFF16, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_pru_diff_relocate,/* special_function */
"R_PRU_DIFF16", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_GNU_DIFF32, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_pru_diff_relocate,/* special_function */
"R_PRU_DIFF32", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_GNU_DIFF16_PMEM, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size */
16, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_pru_diff_relocate,/* special_function */
"R_PRU_DIFF16_PMEM", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
HOWTO (R_PRU_GNU_DIFF32_PMEM, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 4, /* size */
32, /* bitsize */
- FALSE, /* pc_relative */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_pru_diff_relocate,/* special_function */
"R_PRU_DIFF32_PMEM", /* name */
- FALSE, /* partial_inplace */
+ false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ false), /* pcrel_offset */
/* Add other relocations here. */
};
static reloc_howto_type *
lookup_howto (unsigned int rtype)
{
- static bfd_boolean initialized = FALSE;
+ static bool initialized = false;
int i;
int howto_tbl_size = (int) (sizeof (elf_pru_howto_table_rel)
/ sizeof (elf_pru_howto_table_rel[0]));
if (! initialized)
{
- initialized = TRUE;
+ initialized = true;
memset (elf_code_to_howto_index, 0xff,
sizeof (elf_code_to_howto_index));
for (i = 0; i < howto_tbl_size; i++)
/* Implement elf_info_to_howto:
Given a ELF32 relocation, fill in a arelent structure. */
-static bfd_boolean
+static bool
pru_elf32_info_to_howto (bfd *abfd, arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
/* xgettext:c-format */
_bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type);
bfd_set_error (bfd_error_bad_value);
- return FALSE;
+ return false;
}
cache_ptr->howto = lookup_howto (r_type);
bfd_byte *data, bfd_vma offset,
bfd_vma symbol_value, bfd_vma addend)
{
- bfd_signed_vma relocation;
+ bfd_vma relocation;
bfd_size_type octets = offset * OCTETS_PER_BYTE (abfd, input_section);
bfd_byte *location;
unsigned long in1, in2;
/* Implement elf_backend_relocate_section. */
-static bfd_boolean
+static int
pru_elf32_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- bfd_boolean is_rel_reloc;
+ bool is_rel_reloc;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
bfd_reloc_status_type r = bfd_reloc_ok;
const char *name = NULL;
const char* msg = (const char*) NULL;
- bfd_boolean unresolved_reloc;
+ bool unresolved_reloc;
bfd_vma addend;
/* If we are using a REL relocation then the addend should be empty. */
}
else
{
- bfd_boolean warned, ignored;
+ bool warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
case bfd_reloc_undefined:
(*info->callbacks->undefined_symbol) (info, name, input_bfd,
input_section,
- rel->r_offset, TRUE);
+ rel->r_offset, true);
break;
case bfd_reloc_outofrange:
{
(*info->callbacks->warning) (info, msg, name, input_bfd,
input_section, rel->r_offset);
- return FALSE;
+ return false;
}
}
}
- return TRUE;
+ return true;
}
\f
/* Returns whether the relocation type passed is a diff reloc. */
-static bfd_boolean
+static bool
elf32_pru_is_diff_reloc (Elf_Internal_Rela *irel)
{
return (ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF8
Idea copied from the AVR port. */
-static bfd_boolean
+static bool
pru_elf_relax_delete_bytes (bfd *abfd,
asection *sec,
bfd_vma addr,
irel = elf_section_data (isec)->relocs;
/* PR 12161: Read in the relocs for this section if necessary. */
if (irel == NULL)
- irel = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, TRUE);
+ irel = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, true);
for (irelend = irel + isec->reloc_count;
irel < irelend;
symtab_hdr->sh_info, 0,
NULL, NULL, NULL);
if (isymbuf == NULL)
- return FALSE;
+ return false;
}
/* Get the value of the symbol referred to by the reloc. */
}
}
- return TRUE;
+ return true;
}
-static bfd_boolean
-pru_elf32_relax_section (bfd * abfd, asection * sec,
- struct bfd_link_info * link_info,
- bfd_boolean * again)
+static bool
+pru_elf32_relax_section (bfd *abfd, asection *sec,
+ struct bfd_link_info *link_info,
+ bool *again)
{
Elf_Internal_Shdr * symtab_hdr;
Elf_Internal_Rela * internal_relocs;
Elf_Internal_Sym * isymbuf = NULL;
/* Assume nothing changes. */
- *again = FALSE;
+ *again = false;
/* We don't have to do anything for a relocatable link, if
this section does not have relocs, or if this is not a
code section. */
if (bfd_link_relocatable (link_info)
- || (sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0 || (sec->flags & SEC_CODE) == 0)
- return TRUE;
+ || sec->reloc_count == 0
+ || (sec->flags & SEC_RELOC) == 0
+ || (sec->flags & SEC_HAS_CONTENTS) == 0
+ || (sec->flags & SEC_CODE) == 0)
+ return true;
symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
/* That will change things, so, we should relax again.
Note that this is not required, and it may be slow. */
- *again = TRUE;
+ *again = true;
}
}
}
}
}
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
- return TRUE;
+ return true;
-error_return:
- if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
+ error_return:
+ if (symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
+ if (elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
- return FALSE;
+ return false;
}
/* Free the derived linker hash table. */
pru_elf32_link_hash_table_create (bfd *abfd)
{
struct elf_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf_link_hash_table);
+ size_t amt = sizeof (struct elf_link_hash_table);
ret = bfd_zmalloc (amt);
if (ret == NULL)
#define elf_backend_relocate_section pru_elf32_relocate_section
#define bfd_elf32_bfd_relax_section pru_elf32_relax_section
+#define elf_backend_can_gc_sections 1
+
+#define elf_backend_default_execstack 0
#define TARGET_LITTLE_SYM pru_elf32_vec
#define TARGET_LITTLE_NAME "elf32-pru"