--- /dev/null
+/* 32-bit ELF support for TI PRU.
+ Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+ Based on elf32-nios2.c
+
+ 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 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.
+
+ 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 file handles TI PRU ELF targets. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "genlink.h"
+#include "elf-bfd.h"
+#include "elf/pru.h"
+#include "opcode/pru.h"
+
+#define SWAP_VALS(A,B) \
+ do { \
+ (A) ^= (B); \
+ (B) ^= (A); \
+ (A) ^= (B); \
+ } while (0)
+
+/* Enable debugging printout at stdout with this variable. */
+static bfd_boolean debug_relax = FALSE;
+
+/* Forward declarations. */
+static bfd_reloc_status_type pru_elf32_pmem_relocate
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type pru_elf32_s10_pcrel_relocate
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type pru_elf32_u8_pcrel_relocate
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type pru_elf32_ldi32_relocate
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type bfd_elf_pru_diff_relocate
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+
+/* Target vector. */
+extern const bfd_target pru_elf32_vec;
+
+/* The relocation table used for SHT_REL sections. */
+static reloc_howto_type elf_pru_howto_table_rel[] = {
+ /* No relocation. */
+ HOWTO (R_PRU_NONE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 3, /* 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 */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_16_PMEM,
+ 2,
+ 1, /* short */
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "R_PRU_16_PMEM",
+ FALSE,
+ 0, /* src_mask */
+ 0xffff,
+ FALSE),
+
+ HOWTO (R_PRU_U16_PMEMIMM,
+ 2,
+ 2,
+ 32,
+ FALSE,
+ 8,
+ complain_overflow_unsigned,
+ pru_elf32_pmem_relocate,
+ "R_PRU_U16_PMEMIMM",
+ FALSE,
+ 0, /* src_mask */
+ 0x00ffff00,
+ FALSE),
+
+ HOWTO (R_PRU_BFD_RELOC_16,
+ 0,
+ 1, /* short */
+ 16,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ bfd_elf_generic_reloc,
+ "R_PRU_BFD_RELOC16",
+ FALSE,
+ 0, /* src_mask */
+ 0x0000ffff,
+ FALSE),
+
+ /* 16-bit unsigned immediate relocation. */
+ HOWTO (R_PRU_U16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 8, /* bitpos */
+ complain_overflow_unsigned, /* complain on overflow */
+ bfd_elf_generic_reloc, /* special function */
+ "R_PRU_U16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x00ffff00, /* dest_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_32_PMEM,
+ 2,
+ 2, /* long */
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_dont,
+ pru_elf32_pmem_relocate,
+ "R_PRU_32_PMEM",
+ FALSE,
+ 0, /* src_mask */
+ 0xffffffff,
+ FALSE),
+
+ HOWTO (R_PRU_BFD_RELOC_32,
+ 0,
+ 2, /* long */
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_dont,
+ bfd_elf_generic_reloc,
+ "R_PRU_BFD_RELOC32",
+ FALSE,
+ 0, /* src_mask */
+ 0xffffffff,
+ FALSE),
+
+ HOWTO (R_PRU_S10_PCREL,
+ 2,
+ 2,
+ 10,
+ TRUE,
+ 0,
+ complain_overflow_bitfield,
+ pru_elf32_s10_pcrel_relocate,
+ "R_PRU_S10_PCREL",
+ FALSE,
+ 0, /* src_mask */
+ 0x060000ff,
+ TRUE),
+
+ HOWTO (R_PRU_U8_PCREL,
+ 2,
+ 2,
+ 8,
+ TRUE,
+ 0,
+ complain_overflow_unsigned,
+ pru_elf32_u8_pcrel_relocate,
+ "R_PRU_U8_PCREL",
+ FALSE,
+ 0, /* src_mask */
+ 0x000000ff,
+ TRUE),
+
+ HOWTO (R_PRU_LDI32,
+ 0, /* rightshift */
+ 4, /* size (4 = 8bytes) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain on overflow */
+ pru_elf32_ldi32_relocate, /* special function */
+ "R_PRU_LDI32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dest_mask */
+ FALSE), /* pcrel_offset */
+
+ /* GNU-specific relocations. */
+ HOWTO (R_PRU_GNU_BFD_RELOC_8,
+ 0,
+ 0, /* byte */
+ 8,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ bfd_elf_generic_reloc,
+ "R_PRU_BFD_RELOC8",
+ FALSE,
+ 0, /* src_mask */
+ 0x000000ff,
+ FALSE),
+
+ HOWTO (R_PRU_GNU_DIFF8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ 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 */
+ 0, /* src_mask */
+ 0xff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_GNU_DIFF16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ 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 */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_GNU_DIFF32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ 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 */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_GNU_DIFF16_PMEM, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ 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 */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_PRU_GNU_DIFF32_PMEM, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ 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 */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+/* Add other relocations here. */
+};
+
+static unsigned char elf_code_to_howto_index[R_PRU_ILLEGAL + 1];
+
+/* Return the howto for relocation RTYPE. */
+static reloc_howto_type *
+lookup_howto (unsigned int rtype)
+{
+ static int initialized = 0;
+ int i;
+ int howto_tbl_size = (int) (sizeof (elf_pru_howto_table_rel)
+ / sizeof (elf_pru_howto_table_rel[0]));
+
+ if (!initialized)
+ {
+ initialized = 1;
+ memset (elf_code_to_howto_index, 0xff,
+ sizeof (elf_code_to_howto_index));
+ for (i = 0; i < howto_tbl_size; i++)
+ elf_code_to_howto_index[elf_pru_howto_table_rel[i].type] = i;
+ }
+
+ BFD_ASSERT (rtype <= R_PRU_ILLEGAL);
+ i = elf_code_to_howto_index[rtype];
+ if (i >= howto_tbl_size)
+ return 0;
+ return elf_pru_howto_table_rel + i;
+}
+
+/* Map for converting BFD reloc types to PRU reloc types. */
+struct elf_reloc_map
+{
+ bfd_reloc_code_real_type bfd_val;
+ enum elf_pru_reloc_type elf_val;
+};
+
+static const struct elf_reloc_map pru_reloc_map[] = {
+ {BFD_RELOC_NONE, R_PRU_NONE},
+ {BFD_RELOC_PRU_16_PMEM, R_PRU_16_PMEM},
+ {BFD_RELOC_PRU_U16_PMEMIMM, R_PRU_U16_PMEMIMM},
+ {BFD_RELOC_16, R_PRU_BFD_RELOC_16},
+ {BFD_RELOC_PRU_U16, R_PRU_U16},
+ {BFD_RELOC_PRU_32_PMEM, R_PRU_32_PMEM},
+ {BFD_RELOC_32, R_PRU_BFD_RELOC_32},
+ {BFD_RELOC_PRU_S10_PCREL, R_PRU_S10_PCREL},
+ {BFD_RELOC_PRU_U8_PCREL, R_PRU_U8_PCREL},
+ {BFD_RELOC_PRU_LDI32, R_PRU_LDI32},
+
+ {BFD_RELOC_8, R_PRU_GNU_BFD_RELOC_8},
+ {BFD_RELOC_PRU_GNU_DIFF8, R_PRU_GNU_DIFF8},
+ {BFD_RELOC_PRU_GNU_DIFF16, R_PRU_GNU_DIFF16},
+ {BFD_RELOC_PRU_GNU_DIFF32, R_PRU_GNU_DIFF32},
+ {BFD_RELOC_PRU_GNU_DIFF16_PMEM, R_PRU_GNU_DIFF16_PMEM},
+ {BFD_RELOC_PRU_GNU_DIFF32_PMEM, R_PRU_GNU_DIFF32_PMEM},
+};
+
+
+/* Assorted hash table functions. */
+
+/* Create an entry in a PRU ELF linker hash table. */
+static struct bfd_hash_entry *
+link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table, const char *string)
+{
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (entry == NULL)
+ {
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf_link_hash_entry));
+ if (entry == NULL)
+ return entry;
+ }
+
+ /* Call the allocation method of the superclass. */
+ entry = _bfd_elf_link_hash_newfunc (entry, table, string);
+
+ return entry;
+}
+
+/* Implement bfd_elf32_bfd_reloc_type_lookup:
+ Given a BFD reloc type, return a howto structure. */
+static reloc_howto_type *
+pru_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ int i;
+ for (i = 0;
+ i < (int) (sizeof (pru_reloc_map) / sizeof (struct elf_reloc_map));
+ ++i)
+ if (pru_reloc_map[i].bfd_val == code)
+ return lookup_howto ((unsigned int) pru_reloc_map[i].elf_val);
+ return NULL;
+}
+
+/* Implement bfd_elf32_bfd_reloc_name_lookup:
+ Given a reloc name, return a howto structure. */
+static reloc_howto_type *
+pru_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+ for (i = 0;
+ i < (sizeof (elf_pru_howto_table_rel)
+ / sizeof (elf_pru_howto_table_rel[0]));
+ i++)
+ if (elf_pru_howto_table_rel[i].name
+ && strcasecmp (elf_pru_howto_table_rel[i].name, r_name) == 0)
+ return &elf_pru_howto_table_rel[i];
+
+ return NULL;
+}
+
+/* Implement elf_info_to_howto:
+ Given a ELF32 relocation, fill in a arelent structure. */
+static void
+pru_elf32_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
+{
+ unsigned int r_type;
+
+ r_type = ELF32_R_TYPE (dst->r_info);
+ BFD_ASSERT (r_type < R_PRU_ILLEGAL);
+ cache_ptr->howto = lookup_howto (r_type);
+}
+
+/* Do the relocations that require special handling. */
+/* Produce a word address for program memory. Linker scripts will put .text
+ at a high offset in order to differentiate it from .data. So here we also
+ mask the high bits of PMEM address.
+
+ But why 1MB when internal Program Memory much smaller? We want to catch
+ unintended overflows.
+
+ Why not use (1<<31) as an offset and a mask? Sitara DDRAM usually resides
+ there, and users might want to put some shared carveout memory region in
+ their linker scripts. So 0x80000000 might be a valid .data address.
+
+ Note that we still keep and pass down the original howto. This way we
+ can reuse this function for several different relocations. */
+static bfd_reloc_status_type
+pru_elf32_do_pmem_relocate (bfd *abfd, reloc_howto_type *howto,
+ asection *input_section,
+ bfd_byte *data, bfd_vma offset,
+ bfd_vma symbol_value, bfd_vma addend)
+{
+ symbol_value = symbol_value + addend;
+ addend = 0;
+ symbol_value &= 0x3fffff;
+ return _bfd_final_link_relocate (howto, abfd, input_section,
+ data, offset, symbol_value, addend);
+}
+
+/* Direct copy of _bfd_final_link_relocate, but with special
+ "fill-in". This copy-paste mumbo jumbo is only needed because BFD
+ cannot deal correctly with non-contiguous bit fields. */
+static bfd_reloc_status_type
+pru_elf32_do_s10_pcrel_relocate (bfd *input_bfd, reloc_howto_type *howto,
+ asection *input_section,
+ bfd_byte *contents, bfd_vma address,
+ bfd_vma relocation, bfd_vma addend)
+{
+ bfd_byte *location;
+ bfd_vma x = 0;
+ bfd_vma qboff;
+ bfd_reloc_status_type flag = bfd_reloc_ok;
+
+ /* Sanity check the address. */
+ if (address > bfd_get_section_limit (input_bfd, input_section))
+ return bfd_reloc_outofrange;
+
+ BFD_ASSERT (howto->pc_relative);
+ BFD_ASSERT (howto->pcrel_offset);
+
+ relocation = relocation + addend - (input_section->output_section->vma
+ + input_section->output_offset) - address;
+
+ location = contents + address;
+
+ /* Get the value we are going to relocate. */
+ BFD_ASSERT (bfd_get_reloc_size (howto) == 4);
+ x = bfd_get_32 (input_bfd, location);
+
+ qboff = GET_BROFF_SIGNED (x) << howto->rightshift;
+ relocation += qboff;
+
+ BFD_ASSERT (howto->complain_on_overflow == complain_overflow_bitfield);
+
+ if (relocation > 2047 && relocation < (bfd_vma)-2048l)
+ flag = bfd_reloc_overflow;
+
+ /* Check that target address is word-aligned. */
+ if (relocation & ((1 << howto->rightshift) - 1))
+ flag = bfd_reloc_outofrange;
+
+ relocation >>= (bfd_vma) howto->rightshift;
+
+ /* Fill-in the RELOCATION to the right bits of X. */
+ SET_BROFF_URAW (x, relocation);
+
+ bfd_put_32 (input_bfd, x, location);
+
+ return flag;
+}
+
+static bfd_reloc_status_type
+pru_elf32_do_u8_pcrel_relocate (bfd *abfd, reloc_howto_type *howto,
+ asection *input_section,
+ bfd_byte *data, bfd_vma offset,
+ bfd_vma symbol_value, bfd_vma addend)
+{
+ bfd_vma relocation;
+
+ BFD_ASSERT (howto->pc_relative);
+ BFD_ASSERT (howto->pcrel_offset);
+
+ relocation = symbol_value + addend - (input_section->output_section->vma
+ + input_section->output_offset) - offset;
+ relocation >>= howto->rightshift;
+
+ /* 0 and 1 are invalid target labels for LOOP. We cannot
+ encode this info in HOWTO, so catch such cases here. */
+ if (relocation < 2)
+ return bfd_reloc_outofrange;
+
+ return _bfd_final_link_relocate (howto, abfd, input_section,
+ data, offset, symbol_value, addend);
+}
+
+/* Idea and code taken from elf32-d30v. */
+static bfd_reloc_status_type
+pru_elf32_do_ldi32_relocate (bfd *abfd, reloc_howto_type *howto,
+ asection *input_section,
+ bfd_byte *data, bfd_vma offset,
+ bfd_vma symbol_value, bfd_vma addend)
+{
+ bfd_signed_vma relocation;
+ bfd_size_type octets = offset * bfd_octets_per_byte (abfd);
+ bfd_byte *location;
+ unsigned long in1, in2, num;
+
+ /* A hacked-up version of _bfd_final_link_relocate() follows. */
+
+ /* Sanity check the address. */
+ if (octets + bfd_get_reloc_size (howto)
+ > bfd_get_section_limit_octets (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* This function assumes that we are dealing with a basic relocation
+ against a symbol. We want to compute the value of the symbol to
+ relocate to. This is just VALUE, the value of the symbol, plus
+ ADDEND, any addend associated with the reloc. */
+ relocation = symbol_value + addend;
+
+ BFD_ASSERT (!howto->pc_relative);
+
+ /* A hacked-up version of _bfd_relocate_contents() follows. */
+ location = data + offset * bfd_octets_per_byte (abfd);
+
+ BFD_ASSERT (!howto->pc_relative);
+
+ in1 = bfd_get_32 (abfd, location);
+ in2 = bfd_get_32 (abfd, location + 4);
+
+ /* Extract the addend - should be zero per my understanding. */
+ num = GET_INSN_FIELD (IMM16, in1) | (GET_INSN_FIELD (IMM16, in2) << 16);
+ BFD_ASSERT (!num);
+
+ relocation += num;
+
+ SET_INSN_FIELD (IMM16, in1, relocation & 0xffff);
+ SET_INSN_FIELD (IMM16, in2, relocation >> 16);
+
+ bfd_put_32 (abfd, in1, location);
+ bfd_put_32 (abfd, in2, location + 4);
+
+ return bfd_reloc_ok;
+}
+
+/* HOWTO handlers for relocations that require special handling. */
+
+static bfd_reloc_status_type
+pru_elf32_pmem_relocate (bfd *abfd, arelent *reloc_entry,
+ asymbol *symbol, void *data,
+ asection *input_section, bfd *output_bfd,
+ char **error_message)
+{
+ /* If this is a relocatable link (output_bfd test tells us), just
+ call the generic function. Any adjustment will be done at final
+ link time. */
+ if (output_bfd != NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ return pru_elf32_do_pmem_relocate (abfd, reloc_entry->howto,
+ input_section,
+ data, reloc_entry->address,
+ (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset),
+ reloc_entry->addend);
+}
+
+static bfd_reloc_status_type
+pru_elf32_s10_pcrel_relocate (bfd *abfd, arelent *reloc_entry,
+ asymbol *symbol, void *data,
+ asection *input_section, bfd *output_bfd,
+ char **error_message)
+{
+ /* If this is a relocatable link (output_bfd test tells us), just
+ call the generic function. Any adjustment will be done at final
+ link time. */
+ if (output_bfd != NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ return pru_elf32_do_s10_pcrel_relocate (abfd, reloc_entry->howto,
+ input_section, data,
+ reloc_entry->address,
+ (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset),
+ reloc_entry->addend);
+}
+
+static bfd_reloc_status_type
+pru_elf32_u8_pcrel_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
+ void *data, asection *input_section,
+ bfd *output_bfd,
+ char **error_message)
+{
+ /* If this is a relocatable link (output_bfd test tells us), just
+ call the generic function. Any adjustment will be done at final
+ link time. */
+ if (output_bfd != NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ return pru_elf32_do_u8_pcrel_relocate (abfd, reloc_entry->howto,
+ input_section,
+ data, reloc_entry->address,
+ (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset),
+ reloc_entry->addend);
+}
+
+static bfd_reloc_status_type
+pru_elf32_ldi32_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
+ void *data, asection *input_section,
+ bfd *output_bfd,
+ char **error_message)
+{
+ /* If this is a relocatable link (output_bfd test tells us), just
+ call the generic function. Any adjustment will be done at final
+ link time. */
+ if (output_bfd != NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ return pru_elf32_do_ldi32_relocate (abfd, reloc_entry->howto,
+ input_section,
+ data, reloc_entry->address,
+ (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset),
+ reloc_entry->addend);
+}
+
+
+/* Implement elf_backend_relocate_section. */
+static bfd_boolean
+pru_elf32_relocate_section (bfd *output_bfd,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *relocs,
+ Elf_Internal_Sym *local_syms,
+ asection **local_sections)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+ relend = relocs + input_section->reloc_count;
+
+ for (rel = relocs; rel < relend; rel++)
+ {
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ struct elf_link_hash_entry *h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r = bfd_reloc_ok;
+ const char *name = NULL;
+ const char* msg = (const char*) NULL;
+ bfd_boolean unresolved_reloc;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info));
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ }
+ else
+ {
+ bfd_boolean warned, ignored;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned, ignored);
+ }
+
+ if (sec && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ /* Nothing more to do unless this is a final link. */
+ if (bfd_link_relocatable (info))
+ continue;
+
+ if (howto)
+ {
+ switch (howto->type)
+ {
+ case R_PRU_NONE:
+ /* We don't need to find a value for this symbol. It's just a
+ marker. */
+ r = bfd_reloc_ok;
+ break;
+
+ case R_PRU_U16_PMEMIMM:
+ case R_PRU_32_PMEM:
+ case R_PRU_16_PMEM:
+ r = pru_elf32_do_pmem_relocate (input_bfd, howto,
+ input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
+ break;
+ case R_PRU_S10_PCREL:
+ r = pru_elf32_do_s10_pcrel_relocate (input_bfd, howto,
+ input_section,
+ contents,
+ rel->r_offset,
+ relocation,
+ rel->r_addend);
+ break;
+ case R_PRU_U8_PCREL:
+ r = pru_elf32_do_u8_pcrel_relocate (input_bfd, howto,
+ input_section,
+ contents,
+ rel->r_offset,
+ relocation,
+ rel->r_addend);
+ break;
+ case R_PRU_LDI32:
+ r = pru_elf32_do_ldi32_relocate (input_bfd, howto,
+ input_section,
+ contents,
+ rel->r_offset,
+ relocation,
+ rel->r_addend);
+ break;
+ case R_PRU_GNU_DIFF8:
+ case R_PRU_GNU_DIFF16:
+ case R_PRU_GNU_DIFF32:
+ case R_PRU_GNU_DIFF16_PMEM:
+ case R_PRU_GNU_DIFF32_PMEM:
+ /* Nothing to do here, as contents already contain the
+ diff value. */
+ r = bfd_reloc_ok;
+ break;
+
+ default:
+ r = _bfd_final_link_relocate (howto, input_bfd,
+ input_section, contents,
+ rel->r_offset, relocation,
+ rel->r_addend);
+ break;
+ }
+ }
+ else
+ r = bfd_reloc_notsupported;
+
+ if (r != bfd_reloc_ok)
+ {
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (name == NULL || *name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ (*info->callbacks->reloc_overflow) (info, NULL, name,
+ howto->name, (bfd_vma) 0,
+ input_bfd, input_section,
+ rel->r_offset);
+ break;
+
+ case bfd_reloc_undefined:
+ (*info->callbacks->undefined_symbol) (info, name, input_bfd,
+ input_section,
+ rel->r_offset, TRUE);
+ break;
+
+ case bfd_reloc_outofrange:
+ if (msg == NULL)
+ msg = _("relocation out of range");
+ break;
+
+ case bfd_reloc_notsupported:
+ if (msg == NULL)
+ msg = _("unsupported relocation");
+ break;
+
+ case bfd_reloc_dangerous:
+ if (msg == NULL)
+ msg = _("dangerous relocation");
+ break;
+
+ default:
+ if (msg == NULL)
+ msg = _("unknown error");
+ break;
+ }
+
+ if (msg)
+ {
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
+ return FALSE;
+ }
+ }
+ }
+ return TRUE;
+}
+
+\f
+/* Perform a diff relocation. Nothing to do, as the difference value is
+ already written into the section's contents. */
+
+static bfd_reloc_status_type
+bfd_elf_pru_diff_relocate (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry ATTRIBUTE_UNUSED,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED,
+ asection *input_section ATTRIBUTE_UNUSED,
+ bfd *output_bfd ATTRIBUTE_UNUSED,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ return bfd_reloc_ok;
+}
+
+
+/* Returns whether the relocation type passed is a diff reloc. */
+
+static bfd_boolean
+elf32_pru_is_diff_reloc (Elf_Internal_Rela *irel)
+{
+ return (ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF8
+ || ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF16
+ || ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF32
+ || ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF16_PMEM
+ || ELF32_R_TYPE (irel->r_info) == R_PRU_GNU_DIFF32_PMEM);
+}
+
+/* Reduce the diff value written in the section by count if the shrinked
+ insn address happens to fall between the two symbols for which this
+ diff reloc was emitted. */
+
+static void
+elf32_pru_adjust_diff_reloc_value (bfd *abfd,
+ struct bfd_section *isec,
+ Elf_Internal_Rela *irel,
+ bfd_vma symval,
+ bfd_vma shrinked_insn_address,
+ int count)
+{
+ unsigned char *reloc_contents = NULL;
+ unsigned char *isec_contents = elf_section_data (isec)->this_hdr.contents;
+ if (isec_contents == NULL)
+ {
+ if (! bfd_malloc_and_get_section (abfd, isec, &isec_contents))
+ return;
+
+ elf_section_data (isec)->this_hdr.contents = isec_contents;
+ }
+
+ reloc_contents = isec_contents + irel->r_offset;
+
+ /* Read value written in object file. */
+ bfd_signed_vma x = 0;
+ switch (ELF32_R_TYPE (irel->r_info))
+ {
+ case R_PRU_GNU_DIFF8:
+ {
+ x = bfd_get_signed_8 (abfd, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF16:
+ {
+ x = bfd_get_signed_16 (abfd, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF32:
+ {
+ x = bfd_get_signed_32 (abfd, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF16_PMEM:
+ {
+ x = bfd_get_signed_16 (abfd, reloc_contents) * 4;
+ break;
+ }
+ case R_PRU_GNU_DIFF32_PMEM:
+ {
+ x = bfd_get_signed_32 (abfd, reloc_contents) * 4;
+ break;
+ }
+ default:
+ {
+ BFD_FAIL ();
+ }
+ }
+
+ /* For a diff reloc sym1 - sym2 the diff at assembly time (x) is written
+ into the object file at the reloc offset. sym2's logical value is
+ symval (<start_of_section>) + reloc addend. Compute the start and end
+ addresses and check if the shrinked insn falls between sym1 and sym2. */
+
+ bfd_vma end_address = symval + irel->r_addend;
+ bfd_vma start_address = end_address - x;
+
+ /* Shrink the absolute DIFF value (get the to labels "closer"
+ together), because we have removed data between labels. */
+ if (x < 0)
+ {
+ x += count;
+ /* In case the signed x is negative, restore order. */
+ SWAP_VALS (end_address, start_address);
+ }
+ else
+ {
+ x -= count;
+ }
+
+ /* Reduce the diff value by count bytes and write it back into section
+ contents. */
+
+ if (shrinked_insn_address >= start_address
+ && shrinked_insn_address <= end_address)
+ {
+ switch (ELF32_R_TYPE (irel->r_info))
+ {
+ case R_PRU_GNU_DIFF8:
+ {
+ bfd_put_signed_8 (abfd, x & 0xFF, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF16:
+ {
+ bfd_put_signed_16 (abfd, x & 0xFFFF, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF32:
+ {
+ bfd_put_signed_32 (abfd, x & 0xFFFFFFFF, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF16_PMEM:
+ {
+ bfd_put_signed_16 (abfd, (x / 4) & 0xFFFF, reloc_contents);
+ break;
+ }
+ case R_PRU_GNU_DIFF32_PMEM:
+ {
+ bfd_put_signed_32 (abfd, (x / 4) & 0xFFFFFFFF, reloc_contents);
+ break;
+ }
+ default:
+ {
+ BFD_FAIL ();
+ }
+ }
+
+ }
+}
+
+/* Delete some bytes from a section while changing the size of an instruction.
+ The parameter "addr" denotes the section-relative offset pointing just
+ behind the shrinked instruction. "addr+count" point at the first
+ byte just behind the original unshrinked instruction.
+
+ Idea copied from the AVR port. */
+
+static bfd_boolean
+pru_elf_relax_delete_bytes (bfd *abfd,
+ asection *sec,
+ bfd_vma addr,
+ int count)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ unsigned int sec_shndx;
+ bfd_byte *contents;
+ Elf_Internal_Rela *irel, *irelend;
+ Elf_Internal_Sym *isym;
+ Elf_Internal_Sym *isymbuf = NULL;
+ bfd_vma toaddr;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+ contents = elf_section_data (sec)->this_hdr.contents;
+
+ toaddr = sec->size;
+
+ irel = elf_section_data (sec)->relocs;
+ irelend = irel + sec->reloc_count;
+
+ /* Actually delete the bytes. */
+ if (toaddr - addr - count > 0)
+ memmove (contents + addr, contents + addr + count,
+ (size_t) (toaddr - addr - count));
+ sec->size -= count;
+
+ /* Adjust all the reloc addresses. */
+ for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
+ {
+ bfd_vma old_reloc_address;
+
+ old_reloc_address = (sec->output_section->vma
+ + sec->output_offset + irel->r_offset);
+
+ /* Get the new reloc address. */
+ if ((irel->r_offset > addr
+ && irel->r_offset < toaddr))
+ {
+ if (debug_relax)
+ printf ("Relocation at address 0x%x needs to be moved.\n"
+ "Old section offset: 0x%x, New section offset: 0x%x \n",
+ (unsigned int) old_reloc_address,
+ (unsigned int) irel->r_offset,
+ (unsigned int) ((irel->r_offset) - count));
+
+ irel->r_offset -= count;
+ }
+
+ }
+
+ /* The reloc's own addresses are now ok. However, we need to readjust
+ the reloc's addend, i.e. the reloc's value if two conditions are met:
+ 1.) the reloc is relative to a symbol in this section that
+ is located in front of the shrinked instruction
+ 2.) symbol plus addend end up behind the shrinked instruction.
+
+ The most common case where this happens are relocs relative to
+ the section-start symbol.
+
+ This step needs to be done for all of the sections of the bfd. */
+
+ {
+ struct bfd_section *isec;
+
+ for (isec = abfd->sections; isec; isec = isec->next)
+ {
+ bfd_vma symval;
+ bfd_vma shrinked_insn_address;
+
+ if (isec->reloc_count == 0)
+ continue;
+
+ shrinked_insn_address = (sec->output_section->vma
+ + sec->output_offset + addr - count);
+
+ 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);
+
+ for (irelend = irel + isec->reloc_count;
+ irel < irelend;
+ irel++)
+ {
+ /* Read this BFD's local symbols if we haven't done
+ so already. */
+ if (isymbuf == NULL && symtab_hdr->sh_info != 0)
+ {
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ return FALSE;
+ }
+
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ {
+ /* A local symbol. */
+ asection *sym_sec;
+
+ isym = isymbuf + ELF32_R_SYM (irel->r_info);
+ sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ symval = isym->st_value;
+ /* If the reloc is absolute, it will not have
+ a symbol or section associated with it. */
+ if (sym_sec == sec)
+ {
+ symval += sym_sec->output_section->vma
+ + sym_sec->output_offset;
+
+ if (debug_relax)
+ printf ("Checking if the relocation's "
+ "addend needs corrections.\n"
+ "Address of anchor symbol: 0x%x \n"
+ "Address of relocation target: 0x%x \n"
+ "Address of relaxed insn: 0x%x \n",
+ (unsigned int) symval,
+ (unsigned int) (symval + irel->r_addend),
+ (unsigned int) shrinked_insn_address);
+
+ /* Shrink the special DIFF relocations. */
+ if (elf32_pru_is_diff_reloc (irel))
+ {
+ elf32_pru_adjust_diff_reloc_value (abfd, isec, irel,
+ symval,
+ shrinked_insn_address,
+ count);
+ }
+
+ /* Fix the addend, if it is affected. */
+ if (symval <= shrinked_insn_address
+ && (symval + irel->r_addend) > shrinked_insn_address)
+ {
+
+ irel->r_addend -= count;
+
+ if (debug_relax)
+ printf ("Relocation's addend needed to be fixed \n");
+ }
+ }
+ /* else...Reference symbol is absolute.
+ No adjustment needed. */
+ }
+ /* else...Reference symbol is extern. No need for adjusting
+ the addend. */
+ }
+ }
+ }
+
+ /* Adjust the local symbols defined in this section. */
+ isym = (Elf_Internal_Sym *) symtab_hdr->contents;
+ /* Fix PR 9841, there may be no local symbols. */
+ if (isym != NULL)
+ {
+ Elf_Internal_Sym *isymend;
+
+ isymend = isym + symtab_hdr->sh_info;
+ for (; isym < isymend; isym++)
+ {
+ if (isym->st_shndx == sec_shndx)
+ {
+ if (isym->st_value > addr
+ && isym->st_value <= toaddr)
+ isym->st_value -= count;
+
+ if (isym->st_value <= addr
+ && isym->st_value + isym->st_size > addr)
+ {
+ /* If this assert fires then we have a symbol that ends
+ part way through an instruction. Does that make
+ sense? */
+ BFD_ASSERT (isym->st_value + isym->st_size >= addr + count);
+ isym->st_size -= count;
+ }
+ }
+ }
+ }
+
+ /* Now adjust the global symbols defined in this section. */
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (abfd);
+ end_hashes = sym_hashes + symcount;
+ for (; sym_hashes < end_hashes; sym_hashes++)
+ {
+ struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ if ((sym_hash->root.type == bfd_link_hash_defined
+ || sym_hash->root.type == bfd_link_hash_defweak)
+ && sym_hash->root.u.def.section == sec)
+ {
+ if (sym_hash->root.u.def.value > addr
+ && sym_hash->root.u.def.value <= toaddr)
+ sym_hash->root.u.def.value -= count;
+
+ if (sym_hash->root.u.def.value <= addr
+ && (sym_hash->root.u.def.value + sym_hash->size > addr))
+ {
+ /* If this assert fires then we have a symbol that ends
+ part way through an instruction. Does that make
+ sense? */
+ BFD_ASSERT (sym_hash->root.u.def.value + sym_hash->size
+ >= addr + count);
+ sym_hash->size -= count;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+pru_elf32_relax_section (bfd * abfd, asection * sec,
+ struct bfd_link_info * link_info,
+ bfd_boolean * again)
+{
+ Elf_Internal_Shdr * symtab_hdr;
+ Elf_Internal_Rela * internal_relocs;
+ Elf_Internal_Rela * irel;
+ Elf_Internal_Rela * irelend;
+ bfd_byte * contents = NULL;
+ Elf_Internal_Sym * isymbuf = NULL;
+
+ /* Assume nothing changes. */
+ *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;
+
+ symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
+
+ /* Get a copy of the native relocations. */
+ internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
+ link_info->keep_memory);
+ if (internal_relocs == NULL)
+ goto error_return;
+
+ /* Walk through them looking for relaxing opportunities. */
+ irelend = internal_relocs + sec->reloc_count;
+
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ bfd_vma symval;
+
+ /* Get the section contents if we haven't done so already. */
+ if (contents == NULL)
+ {
+ /* Get cached copy if it exists. */
+ if (elf_section_data (sec)->this_hdr.contents != NULL)
+ contents = elf_section_data (sec)->this_hdr.contents;
+ else if (! bfd_malloc_and_get_section (abfd, sec, &contents))
+ goto error_return;
+ }
+
+ /* Read this BFD's local symbols if we haven't done so already. */
+ if (isymbuf == NULL && symtab_hdr->sh_info != 0)
+ {
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ goto error_return;
+ }
+
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ {
+ /* A local symbol. */
+ Elf_Internal_Sym *isym;
+ asection *sym_sec;
+
+ isym = isymbuf + ELF32_R_SYM (irel->r_info);
+ if (isym->st_shndx == SHN_UNDEF)
+ sym_sec = bfd_und_section_ptr;
+ else if (isym->st_shndx == SHN_ABS)
+ sym_sec = bfd_abs_section_ptr;
+ else if (isym->st_shndx == SHN_COMMON)
+ sym_sec = bfd_com_section_ptr;
+ else
+ sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ symval = (isym->st_value
+ + sym_sec->output_section->vma + sym_sec->output_offset);
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry *h;
+
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+
+ if (h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+
+ /* For simplicity of coding, we are going to modify the section
+ contents, the section relocs, and the BFD symbol table. We
+ must tell the rest of the code not to free up this
+ information. It would be possible to instead create a table
+ of changes which have to be made, as is done in coff-mips.c;
+ that would be more work, but would require less memory when
+ the linker is run. */
+
+ /* Check if we can remove an LDI instruction from the LDI32
+ pseudo instruction if the upper 16 operand bits are zero. */
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_PRU_LDI32)
+ {
+ bfd_vma value = symval + irel->r_addend;
+
+ if (debug_relax)
+ printf ("R_PRU_LDI32 with value=0x%lx\n", (long) value);
+
+ if ((long) value >> 16 == 0)
+ {
+ /* Note that we've changed the relocs, section contents. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ elf_section_data (sec)->this_hdr.contents = contents;
+ symtab_hdr->contents = (unsigned char *) isymbuf;
+
+ /* Delete bytes. */
+ if (!pru_elf_relax_delete_bytes (abfd, sec, irel->r_offset + 4, 4))
+ goto error_return;
+
+ /* We're done with deletion of the second instruction.
+ Set a regular LDI relocation for the first instruction
+ we left to load the 16-bit value into the 32-bit
+ register. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ R_PRU_U16);
+
+ /* That will change things, so, we should relax again.
+ Note that this is not required, and it may be slow. */
+ *again = TRUE;
+ }
+ }
+ }
+
+ if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
+ {
+ if (!link_info->keep_memory)
+ free (isymbuf);
+ else
+ {
+ /* Cache the symbols for elf_link_input_bfd. */
+ symtab_hdr->contents = (unsigned char *) isymbuf;
+ }
+ }
+
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
+ {
+ if (!link_info->keep_memory)
+ free (contents);
+ else
+ {
+ /* Cache the section contents for elf_link_input_bfd. */
+ elf_section_data (sec)->this_hdr.contents = contents;
+ }
+ }
+
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ return TRUE;
+
+error_return:
+ if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != contents)
+ free (contents);
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ return FALSE;
+}
+
+/* Free the derived linker hash table. */
+static void
+pru_elf32_link_hash_table_free (bfd *obfd)
+{
+ _bfd_elf_link_hash_table_free (obfd);
+}
+
+/* Implement bfd_elf32_bfd_link_hash_table_create. */
+static struct bfd_link_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);
+
+ ret = bfd_zmalloc (amt);
+ if (ret == NULL)
+ return NULL;
+
+ if (!_bfd_elf_link_hash_table_init (ret, abfd,
+ link_hash_newfunc,
+ sizeof (struct
+ elf_link_hash_entry),
+ PRU_ELF_DATA))
+ {
+ free (ret);
+ return NULL;
+ }
+
+ ret->root.hash_table_free = pru_elf32_link_hash_table_free;
+
+ return &ret->root;
+}
+
+#define ELF_ARCH bfd_arch_pru
+#define ELF_TARGET_ID PRU_ELF_DATA
+#define ELF_MACHINE_CODE EM_TI_PRU
+
+#define ELF_MAXPAGESIZE 1
+
+#define bfd_elf32_bfd_link_hash_table_create \
+ pru_elf32_link_hash_table_create
+
+/* Relocation table lookup macros. */
+
+#define bfd_elf32_bfd_reloc_type_lookup pru_elf32_bfd_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup pru_elf32_bfd_reloc_name_lookup
+
+/* elf_info_to_howto (using RELA relocations). */
+
+#define elf_info_to_howto pru_elf32_info_to_howto
+
+/* elf backend functions. */
+
+#define elf_backend_rela_normal 1
+
+#define elf_backend_relocate_section pru_elf32_relocate_section
+#define bfd_elf32_bfd_relax_section pru_elf32_relax_section
+
+#define TARGET_LITTLE_SYM pru_elf32_vec
+#define TARGET_LITTLE_NAME "elf32-pru"
+
+#include "elf32-target.h"
--- /dev/null
+/* TI PRU opcode list for GAS, the GNU assembler.
+ Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+
+ This file is part of GAS, the GNU Assembler, and GDB, the GNU disassembler.
+
+ GAS/GDB 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, or (at your option)
+ any later version.
+
+ GAS/GDB 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 GAS or GDB; see the file COPYING3. If not, write to
+ the Free Software Foundation, 51 Franklin Street - Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef _PRU_H_
+#define _PRU_H_
+
+#include "bfd.h"
+
+/****************************************************************************
+ * This file contains structures, bit masks and shift counts used
+ * by the GNU toolchain to define the PRU instruction set and
+ * access various opcode fields.
+ ****************************************************************************/
+
+/* Identify different overflow situations for error messages. */
+enum overflow_type
+{
+ call_target_overflow = 0,
+ qbranch_target_overflow,
+ address_offset_overflow,
+ signed_immed16_overflow,
+ unsigned_immed32_overflow,
+ unsigned_immed16_overflow,
+ unsigned_immed8_overflow,
+ unsigned_immed5_overflow,
+ no_overflow
+};
+
+enum opcode_format_type {
+ opcode_format1,
+ opcode_format2ab,
+ opcode_format2abl,
+ opcode_format2c,
+ opcode_format2de,
+ opcode_format45,
+ opcode_format6
+};
+
+/* Opcode ID listing. Used for indexing by the simulator. */
+enum pru_instr_type {
+ prui_add, prui_adc, prui_sub, prui_suc, prui_lsl, prui_lsr, prui_rsb,
+ prui_rsc, prui_and, prui_or, prui_xor, prui_min, prui_max, prui_clr,
+ prui_set, prui_not, prui_jmp, prui_jal, prui_ldi, prui_halt, prui_slp,
+ prui_xin, prui_xout, prui_xchg, prui_sxin, prui_sxout, prui_sxchg,
+ prui_loop, prui_iloop, prui_qbgt, prui_qbge, prui_qblt, prui_qble,
+ prui_qbeq, prui_qbne, prui_qba, prui_qbbs, prui_qbbc, prui_lbbo,
+ prui_sbbo, prui_lbco, prui_sbco
+};
+
+/* This structure holds information for a particular instruction.
+
+ The args field is a string describing the operands. The following
+ letters can appear in the args:
+ b - a 5.3-bit right source register index OR 8-bit unsigned immediate
+ B - same as 'b', but for LOOP instruction where IMM is decremented
+ c - a 5 bit unsigned immediate for constant table offset
+ d - a 5.3-bit destination register index
+ D - a 5.2-bit destination register index
+ E - for internal GAS self-tests only
+ i - a 32-bit immediate or label
+ j - a 5.3-bit right source register index OR 18-bit PC address
+ l - burst length (unsigned 7-bit immediate or r0.b[0-3]) for xLBCO
+ n - burst length (unsigned 7-bit immediate or r0.b[0-3]) for XFR
+ o - a 10-bit signed PC-relative offset
+ O - an 8-bit unsigned PC-relative offset for LOOP termination point
+ R - a 5-bit destination register index
+ s - a 5.3-bit left source register index
+ S - a 5-bit left source register index
+ w - a single bit for "WakeOnStatus"
+ W - a 16-bit unsigned immediate with IO=0 field (LDI)
+ x - an 8-bit XFR wide-bus address immediate
+ Literal ',' character may also appear in the args as delimiter.
+
+ Most of the macro names are from [1].
+
+ The pinfo field is INSN_MACRO for a macro. Otherwise, it is a collection
+ of bits describing the instruction, notably any relevant hazard
+ information.
+
+ When assembling, the match field contains the opcode template, which
+ is modified by the arguments to produce the actual opcode
+ that is emitted. If pinfo is INSN_MACRO, then this is 0.
+
+ If pinfo is INSN_MACRO, the mask field stores the macro identifier.
+ Otherwise this is a bit mask for the relevant portions of the opcode
+ when disassembling. If the actual opcode anded with the match field
+ equals the opcode field, then we have found the correct instruction.
+
+ [1] http://processors.wiki.ti.com/index.php/Programmable_Realtime_Unit */
+
+struct pru_opcode
+{
+ const char *name; /* The name of the instruction. */
+ enum pru_instr_type type; /* Instruction type. Used for fast indexing
+ by the simulator. */
+ const char *args; /* A string describing the arguments for this
+ instruction. */
+ unsigned long match; /* The basic opcode for the instruction. */
+ unsigned long mask; /* Mask for the opcode field of the
+ instruction. */
+ unsigned long pinfo; /* Is this a real instruction or instruction
+ macro? */
+ enum overflow_type overflow_msg; /* Used to generate informative
+ message when fixup overflows. */
+};
+
+/* This value is used in the pru_opcode.pinfo field to indicate that the
+ instruction is a macro or pseudo-op. This requires special treatment by
+ the assembler, and is used by the disassembler to determine whether to
+ check for a nop. */
+#define PRU_INSN_MACRO 0x80000000
+
+/* This macro is specially handled throughout the code because it is
+ the only insn to output 2 words (64 bits). */
+#define PRU_INSN_LDI32 0x40000000
+
+/* Associates a register name with a 5-bit index and 3-bit regsel. */
+struct pru_reg
+{
+ const char *name; /* Name, e.g. "r10". */
+ const unsigned int index; /* Index, e.g. 10. */
+ const unsigned int regsel; /* Register field selector, .e.g RSEL_31_0. */
+};
+
+/* Macros for getting and setting an instruction field. */
+#define GET_INSN_FIELD(X, i) \
+ (((i) & OP_MASK_##X) >> OP_SH_##X)
+#define SET_INSN_FIELD(X, i, v) \
+ ((i) = (((i) & ~OP_MASK_##X) | (((v) << OP_SH_##X) & OP_MASK_##X)))
+
+#define CHECK_INSN_FIELD(X, i) \
+ (((i) & OP_MASK_##X) == OP_MATCH_##X)
+
+/* Masks, values, shifts and macros for accessing the various opcode fields. */
+
+#define OP_SH_FMT1_OP 29
+#define OP_MASK_FMT1_OP (0x7u << 29)
+#define OP_MATCH_FMT1_OP (0x0u << 29)
+
+#define OP_SH_FMT2_OP 29
+#define OP_MASK_FMT2_OP (0x7u << 29)
+#define OP_MATCH_FMT2_OP (0x1u << 29)
+
+#define OP_SH_FMT4_OP 30
+#define OP_MASK_FMT4_OP (0x3u << 30)
+#define OP_MATCH_FMT4_OP (0x1u << 30)
+
+#define OP_SH_FMT5_OP 29
+#define OP_MASK_FMT5_OP (0x7u << 29)
+#define OP_MATCH_FMT5_OP (0x6u << 29)
+
+#define OP_SH_FMT6AB_OP 29
+#define OP_MASK_FMT6AB_OP (0x7u << 29)
+#define OP_MATCH_FMT6AB_OP (0x7u << 29)
+
+#define OP_SH_FMT6CD_OP 29
+#define OP_MASK_FMT6CD_OP (0x7u << 29)
+#define OP_MATCH_FMT6CD_OP (0x4u << 29)
+
+/* Generic fields. */
+#define OP_SH_SUBOP 25
+#define OP_MASK_SUBOP (0xfu << 25)
+
+#define OP_SH_IO 24
+#define OP_MASK_IO (0x1u << 24)
+
+#define OP_SH_RS2SEL 21
+#define OP_MASK_RS2SEL (0x7u << 21)
+#define OP_SH_RS2 16
+#define OP_MASK_RS2 (0x1fu << 16)
+#define OP_SH_RS1SEL 13
+#define OP_MASK_RS1SEL (0x7u << 13)
+#define OP_SH_RS1 8
+#define OP_MASK_RS1 (0x1fu << 8)
+#define OP_SH_RDSEL 5
+#define OP_MASK_RDSEL (0x7u << 5)
+#define OP_SH_RD 0
+#define OP_MASK_RD (0x1fu << 0)
+#define OP_SH_IMM8 16
+#define OP_MASK_IMM8 (0xffu << 16)
+#define OP_SH_IMM16 8
+#define OP_MASK_IMM16 (0xffffu << 8)
+
+#define RSEL_7_0 0u
+#define RSEL_15_8 1u
+#define RSEL_23_16 2u
+#define RSEL_31_24 3u
+#define RSEL_15_0 4u
+#define RSEL_23_8 5u
+#define RSEL_31_16 6u
+#define RSEL_31_0 7u
+#define RSEL_NUM_ITEMS 8u
+
+/* Format 1 specific fields. */
+#define SUBOP_ADD 0u
+#define SUBOP_ADC 1u
+#define SUBOP_SUB 2u
+#define SUBOP_SUC 3u
+#define SUBOP_LSL 4u
+#define SUBOP_LSR 5u
+#define SUBOP_RSB 6u
+#define SUBOP_RSC 7u
+#define SUBOP_AND 8u
+#define SUBOP_OR 9u
+#define SUBOP_XOR 10u
+#define SUBOP_NOT 11u
+#define SUBOP_MIN 12u
+#define SUBOP_MAX 13u
+#define SUBOP_CLR 14u
+#define SUBOP_SET 15u
+
+/* Format 2 specific fields. */
+#define SUBOP_JMP 0u
+#define SUBOP_JAL 1u
+#define SUBOP_LDI 2u
+#define SUBOP_LMBD 3u
+#define SUBOP_SCAN 4u
+#define SUBOP_HALT 5u
+#define SUBOP_RSVD_FOR_MVIx 6u
+#define SUBOP_XFR 7u
+#define SUBOP_LOOP 8u
+#define SUBOP_RSVD_FOR_RFI 14u
+#define SUBOP_SLP 15u
+
+#define OP_SH_WAKEONSTATUS 23
+#define OP_MASK_WAKEONSTATUS (0x1u << 23)
+
+/* Format 2 XFR specific fields. */
+#define OP_SH_SUBOP_XFR 23
+#define OP_MASK_SUBOP_XFR (3u << 23)
+#define OP_SH_XFR_WBA 15
+#define OP_MASK_XFR_WBA (0xffu << 15)
+#define OP_SH_XFR_S 14
+#define OP_MASK_XFR_S (1u << 14)
+#define OP_SH_XFR_LENGTH 7
+#define OP_MASK_XFR_LENGTH (0x7fu << 7)
+
+#define SUBOP_XFR_XIN 1u
+#define SUBOP_XFR_XOUT 2u
+#define SUBOP_XFR_XCHG 3u
+
+/* Format 2 LOOP specific fields. */
+#define OP_SH_LOOP_INTERRUPTIBLE 15
+#define OP_MASK_LOOP_INTERRUPTIBLE (1u << 15)
+#define OP_SH_LOOP_JMPOFFS 0
+#define OP_MASK_LOOP_JMPOFFS (0xffu << 0)
+
+/* Format 4 specific fields. */
+#define OP_SH_BROFF98 25
+#define OP_MASK_BROFF98 (0x3u << 25)
+#define OP_SH_BROFF70 0
+#define OP_MASK_BROFF70 (0xffu << 0)
+#define OP_SH_GT 29
+#define OP_MASK_GT (0x1u << 29)
+#define OP_SH_EQ 28
+#define OP_MASK_EQ (0x1u << 28)
+#define OP_SH_LT 27
+#define OP_MASK_LT (0x1u << 27)
+#define OP_MASK_CMP (OP_MASK_GT | OP_MASK_EQ | OP_MASK_LT)
+
+
+/* Format 5 specific fields. */
+#define OP_SH_BS 28
+#define OP_MASK_BS (0x1u << 28)
+#define OP_SH_BC 27
+#define OP_MASK_BC (0x1u << 27)
+#define OP_MASK_BCMP (OP_MASK_BS | OP_MASK_BC)
+
+/* Format 6 specific fields. */
+#define OP_SH_LOADSTORE 28
+#define OP_MASK_LOADSTORE (0x1u << 28)
+#define OP_SH_BURSTLEN64 25
+#define OP_MASK_BURSTLEN64 (0x7u << 25)
+#define OP_SH_BURSTLEN31 13
+#define OP_MASK_BURSTLEN31 (0x7u << 13)
+#define OP_SH_CB 8
+#define OP_MASK_CB (0x1fu << 8)
+#define OP_SH_BURSTLEN0 7
+#define OP_MASK_BURSTLEN0 (0x1u << 7)
+#define OP_SH_RDB 5
+#define OP_MASK_RDB (0x3u << 5)
+
+#define LSSBBO_BYTECOUNT_R0_BITS7_0 124u
+#define LSBBO_BYTECOUNT_R0_BITS15_8 125u
+#define LSBBO_BYTECOUNT_R0_BITS23_16 126u
+#define LSBBO_BYTECOUNT_R0_BITS31_24 127u
+
+/* The following macros define the opcode matches for each
+ instruction code & OP_MASK_INST == OP_MATCH_INST. */
+#define OP_MATCH_ADD (OP_MATCH_FMT1_OP | (SUBOP_ADD << OP_SH_SUBOP))
+#define OP_MATCH_ADC (OP_MATCH_FMT1_OP | (SUBOP_ADC << OP_SH_SUBOP))
+#define OP_MATCH_SUB (OP_MATCH_FMT1_OP | (SUBOP_SUB << OP_SH_SUBOP))
+#define OP_MATCH_SUC (OP_MATCH_FMT1_OP | (SUBOP_SUC << OP_SH_SUBOP))
+#define OP_MATCH_LSL (OP_MATCH_FMT1_OP | (SUBOP_LSL << OP_SH_SUBOP))
+#define OP_MATCH_LSR (OP_MATCH_FMT1_OP | (SUBOP_LSR << OP_SH_SUBOP))
+#define OP_MATCH_RSB (OP_MATCH_FMT1_OP | (SUBOP_RSB << OP_SH_SUBOP))
+#define OP_MATCH_RSC (OP_MATCH_FMT1_OP | (SUBOP_RSC << OP_SH_SUBOP))
+#define OP_MATCH_AND (OP_MATCH_FMT1_OP | (SUBOP_AND << OP_SH_SUBOP))
+#define OP_MATCH_OR (OP_MATCH_FMT1_OP | (SUBOP_OR << OP_SH_SUBOP))
+#define OP_MATCH_XOR (OP_MATCH_FMT1_OP | (SUBOP_XOR << OP_SH_SUBOP))
+#define OP_MATCH_NOT (OP_MATCH_FMT1_OP | (SUBOP_NOT << OP_SH_SUBOP))
+#define OP_MATCH_MIN (OP_MATCH_FMT1_OP | (SUBOP_MIN << OP_SH_SUBOP))
+#define OP_MATCH_MAX (OP_MATCH_FMT1_OP | (SUBOP_MAX << OP_SH_SUBOP))
+#define OP_MATCH_CLR (OP_MATCH_FMT1_OP | (SUBOP_CLR << OP_SH_SUBOP))
+#define OP_MATCH_SET (OP_MATCH_FMT1_OP | (SUBOP_SET << OP_SH_SUBOP))
+
+#define OP_MATCH_JMP (OP_MATCH_FMT2_OP | (SUBOP_JMP << OP_SH_SUBOP))
+#define OP_MATCH_JAL (OP_MATCH_FMT2_OP | (SUBOP_JAL << OP_SH_SUBOP))
+#define OP_MATCH_LDI (OP_MATCH_FMT2_OP | (SUBOP_LDI << OP_SH_SUBOP))
+#define OP_MATCH_LMBD (OP_MATCH_FMT2_OP | (SUBOP_LMBD << OP_SH_SUBOP))
+#define OP_MATCH_SCAN (OP_MATCH_FMT2_OP | (SUBOP_SCAN << OP_SH_SUBOP))
+#define OP_MATCH_HALT (OP_MATCH_FMT2_OP | (SUBOP_HALT << OP_SH_SUBOP))
+#define OP_MATCH_SLP (OP_MATCH_FMT2_OP | (SUBOP_SLP << OP_SH_SUBOP))
+#define OP_MATCH_XFR (OP_MATCH_FMT2_OP | (SUBOP_XFR << OP_SH_SUBOP))
+#define OP_MATCH_SXFR (OP_MATCH_XFR | OP_MASK_XFR_S)
+#define OP_MATCH_XIN (OP_MATCH_XFR | (SUBOP_XFR_XIN << OP_SH_SUBOP_XFR))
+#define OP_MATCH_XOUT (OP_MATCH_XFR | (SUBOP_XFR_XOUT << OP_SH_SUBOP_XFR))
+#define OP_MATCH_XCHG (OP_MATCH_XFR | (SUBOP_XFR_XCHG << OP_SH_SUBOP_XFR))
+#define OP_MATCH_SXIN (OP_MATCH_SXFR | (SUBOP_XFR_XIN << OP_SH_SUBOP_XFR))
+#define OP_MATCH_SXOUT (OP_MATCH_SXFR | (SUBOP_XFR_XOUT << OP_SH_SUBOP_XFR))
+#define OP_MATCH_SXCHG (OP_MATCH_SXFR | (SUBOP_XFR_XCHG << OP_SH_SUBOP_XFR))
+#define OP_MATCH_LOOP (OP_MATCH_FMT2_OP | (SUBOP_LOOP << OP_SH_SUBOP))
+#define OP_MATCH_ILOOP (OP_MATCH_FMT2_OP | (SUBOP_LOOP << OP_SH_SUBOP) \
+ | OP_MASK_LOOP_INTERRUPTIBLE)
+
+#define OP_MATCH_QBGT (OP_MATCH_FMT4_OP | OP_MASK_GT)
+#define OP_MATCH_QBGE (OP_MATCH_FMT4_OP | OP_MASK_GT | OP_MASK_EQ)
+#define OP_MATCH_QBLT (OP_MATCH_FMT4_OP | OP_MASK_LT)
+#define OP_MATCH_QBLE (OP_MATCH_FMT4_OP | OP_MASK_LT | OP_MASK_EQ)
+#define OP_MATCH_QBEQ (OP_MATCH_FMT4_OP | OP_MASK_EQ)
+#define OP_MATCH_QBNE (OP_MATCH_FMT4_OP | OP_MASK_GT | OP_MASK_LT)
+#define OP_MATCH_QBA (OP_MATCH_FMT4_OP | OP_MASK_GT | OP_MASK_LT \
+ | OP_MASK_EQ)
+
+#define OP_MATCH_QBBS (OP_MATCH_FMT5_OP | OP_MASK_BS)
+#define OP_MATCH_QBBC (OP_MATCH_FMT5_OP | OP_MASK_BC)
+
+#define OP_MATCH_LBBO (OP_MATCH_FMT6AB_OP | OP_MASK_LOADSTORE)
+#define OP_MATCH_SBBO (OP_MATCH_FMT6AB_OP)
+#define OP_MATCH_LBCO (OP_MATCH_FMT6CD_OP | OP_MASK_LOADSTORE)
+#define OP_MATCH_SBCO (OP_MATCH_FMT6CD_OP)
+
+/* Some special extractions. */
+#define OP_MASK_BROFF (OP_MASK_BROFF98 | OP_MASK_BROFF70)
+
+#define GET_BROFF_URAW(i) \
+ ((GET_INSN_FIELD (BROFF98, i) << 8) | (GET_INSN_FIELD (BROFF70, i) << 0))
+
+#define GET_BROFF_SIGNED(i) \
+ ((long)(GET_BROFF_URAW (i) - (!!(GET_BROFF_URAW (i) & (1 << 9)) << 10)))
+
+#define SET_BROFF_URAW(i, v) \
+ do { \
+ SET_INSN_FIELD (BROFF98, (i), (v) >> 8); \
+ SET_INSN_FIELD (BROFF70, (i), (v) & 0xff); \
+ } while (0)
+
+#define GET_BURSTLEN(i) \
+ ( (GET_INSN_FIELD (BURSTLEN64, (i)) << 4) | \
+ (GET_INSN_FIELD (BURSTLEN31, (i)) << 1) | \
+ (GET_INSN_FIELD (BURSTLEN0, (i)) << 0))
+
+#define SET_BURSTLEN(i, v) \
+ do { \
+ SET_INSN_FIELD (BURSTLEN64, (i), (v) >> 4); \
+ SET_INSN_FIELD (BURSTLEN31, (i), (v) >> 1); \
+ SET_INSN_FIELD (BURSTLEN0, (i), (v) >> 0); \
+ } while (0)
+
+/* Miscellaneous helpers. */
+#define OP_MASK_XFR_OP (OP_MASK_FMT2_OP | OP_MASK_SUBOP \
+ | OP_MASK_SUBOP_XFR | OP_MASK_XFR_S)
+
+#define OP_MASK_LOOP_OP (OP_MASK_FMT2_OP | OP_MASK_SUBOP \
+ | OP_MASK_LOOP_INTERRUPTIBLE)
+
+/* These are the data structures we use to hold the instruction information. */
+extern const struct pru_opcode pru_opcodes[];
+extern const int bfd_pru_num_opcodes;
+
+/* These are the data structures used to hold the register information. */
+extern const struct pru_reg pru_regs[];
+extern const int pru_num_regs;
+
+/* Machine-independent macro for number of opcodes. */
+#define NUMOPCODES bfd_pru_num_opcodes
+#define NUMREGISTERS pru_num_regs;
+
+/* This is made extern so that the assembler can use it to find out
+ what instruction caused an error. */
+extern const struct pru_opcode *pru_find_opcode (unsigned long);
+
+#endif /* _PRU_H */
projects / external / binutils.git / commitdiff