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Diffstat (limited to 'bfd/elf32-v850.c')
-rw-r--r--bfd/elf32-v850.c646
1 files changed, 476 insertions, 170 deletions
diff --git a/bfd/elf32-v850.c b/bfd/elf32-v850.c
index 6583ea1..8e5acf6 100644
--- a/bfd/elf32-v850.c
+++ b/bfd/elf32-v850.c
@@ -30,6 +30,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "elf-bfd.h"
#include "elf/v850.h"
+/* sign-extend a 24-bit number */
+#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
+
static reloc_howto_type *v850_elf_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void v850_elf_info_to_howto_rel
@@ -151,7 +154,7 @@ static reloc_howto_type v850_elf_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ v850_elf_reloc, /* special_function */
"R_V850_32", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
@@ -498,7 +501,7 @@ v850_elf_check_relocs (abfd, info, sec, relocs)
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *sreloc;
- enum reloc_type r_type;
+ enum v850_reloc_type r_type;
int other = 0;
const char *common = (const char *)0;
@@ -528,7 +531,7 @@ v850_elf_check_relocs (abfd, info, sec, relocs)
else
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- r_type = (enum reloc_type) ELF32_R_TYPE (rel->r_info);
+ r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info);
switch (r_type)
{
default:
@@ -639,260 +642,299 @@ v850_elf_check_relocs (abfd, info, sec, relocs)
return ret;
}
-
-/* Insert the addend into the instruction. */
static bfd_reloc_status_type
-v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err)
- bfd * abfd;
- arelent * reloc;
- asymbol * symbol;
- PTR data;
- asection * isection;
- bfd * obfd;
- char ** err;
+v850_elf_store_addend_in_insn (abfd, r_type, addend, address, replace)
+ bfd * abfd;
+ int r_type;
+ long addend;
+ bfd_byte * address;
+ boolean replace;
{
- long relocation;
- long insn;
-
-
- /* If there is an output BFD,
- and the symbol is not a section name (which is only defined at final link time),
- and either we are not putting the addend into the instruction
- or the addend is zero, so there is nothing to add into the instruction
- then just fixup the address and return. */
- if (obfd != (bfd *) NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0
- && (! reloc->howto->partial_inplace
- || reloc->addend == 0))
- {
- reloc->address += isection->output_offset;
- return bfd_reloc_ok;
- }
-#if 0
- else if (obfd != NULL)
- {
- return bfd_reloc_continue;
- }
-#endif
-
- /* Catch relocs involving undefined symbols. */
- if (bfd_is_und_section (symbol->section)
- && (symbol->flags & BSF_WEAK) == 0
- && obfd == NULL)
- return bfd_reloc_undefined;
-
- /* We handle final linking of some relocs ourselves. */
-
- /* Is the address of the relocation really within the section? */
- if (reloc->address > isection->_cooked_size)
- return bfd_reloc_outofrange;
-
- /* Work out which section the relocation is targetted at and the
- initial relocation command value. */
-
- /* Get symbol value. (Common symbols are special.) */
- if (bfd_is_com_section (symbol->section))
- relocation = 0;
- else
- relocation = symbol->value;
-
- /* Convert input-section-relative symbol value to absolute + addend. */
- relocation += symbol->section->output_section->vma;
- relocation += symbol->section->output_offset;
- relocation += reloc->addend;
-
- if (reloc->howto->pc_relative == true)
- {
- /* Here the variable relocation holds the final address of the
- symbol we are relocating against, plus any addend. */
- relocation -= isection->output_section->vma + isection->output_offset;
-
- /* Deal with pcrel_offset */
- relocation -= reloc->address;
- }
-
- /* I've got no clue... */
- reloc->addend = 0;
+ unsigned long insn;
- switch (reloc->howto->type)
+ switch (r_type)
{
default:
- /* fprintf (stderr, "reloc type %d not SUPPORTED\n", reloc->howto->type ); */
+ /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */
return bfd_reloc_notsupported;
+ case R_V850_32:
+ if (! replace)
+ addend += bfd_get_32 (abfd, address);
+
+ bfd_put_32 (abfd, addend, address);
+ return bfd_reloc_ok;
+
case R_V850_22_PCREL:
- if (relocation > 0x1fffff || relocation < -0x200000)
+ if (addend > 0x1fffff || addend < -0x200000)
return bfd_reloc_overflow;
- if ((relocation % 2) != 0)
+ if ((addend % 2) != 0)
return bfd_reloc_dangerous;
- insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc->address);
+ insn = bfd_get_32 (abfd, address);
insn &= ~0xfffe003f;
- insn |= (((relocation & 0xfffe) << 16)
- | ((relocation & 0x3f0000) >> 16));
- bfd_put_32 (abfd, insn, (bfd_byte *)data + reloc->address);
+ insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
+ bfd_put_32 (abfd, insn, address);
return bfd_reloc_ok;
case R_V850_9_PCREL:
- if (relocation > 0xff || relocation < -0x100)
+ if (addend > 0xff || addend < -0x100)
return bfd_reloc_overflow;
- if ((relocation % 2) != 0)
+ if ((addend % 2) != 0)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
+ insn = bfd_get_16 (abfd, address);
insn &= ~ 0xf870;
- insn |= ((relocation & 0x1f0) << 7) | ((relocation & 0x0e) << 3);
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
+ break;
case R_V850_HI16_S:
- relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- relocation = (relocation >> 16) + ((relocation & 0x8000) != 0);
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ addend += bfd_get_16 (abfd, address);
+ addend = (addend >> 16) + ((addend & 0x8000) != 0);
+ insn = addend;
+ break;
case R_V850_HI16:
- relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- relocation = (relocation >> 16);
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ addend += bfd_get_16 (abfd, address);
+ addend = (addend >> 16);
+ insn = addend;
+ break;
case R_V850_LO16:
- relocation += (short)bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
+ addend += (short) bfd_get_16 (abfd, address);
/* Do not complain if value has top bit set, as this has been anticipated. */
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn = addend;
+ break;
case R_V850_16:
- relocation += (short)bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
+ replace = false;
/* drop through */
-
+
+/* start-sanitize-v850e */
+ case R_V850_CALLT_16_16_OFFSET:
+/* end-sanitize-v850e */
case R_V850_SDA_16_16_OFFSET:
case R_V850_ZDA_16_16_OFFSET:
case R_V850_TDA_16_16_OFFSET:
- if ((long)relocation > 0x7fff || (long)relocation < -0x8000)
+ if (! replace)
+ addend += bfd_get_16 (abfd, address);
+
+ if (addend > 0x7fff || addend < -0x8000)
return bfd_reloc_overflow;
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+
+ insn = addend;
+ break;
case R_V850_SDA_15_16_OFFSET:
case R_V850_ZDA_15_16_OFFSET:
- if ((long)relocation > 0x7ffe || (long)relocation < -0x8000)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0xfffe) << 1);
+
+ if (addend > 0x7ffe || addend < -0x8000)
return bfd_reloc_overflow;
- if (relocation & 1)
+ if (addend & 1)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 1;
- insn |= (relocation >> 1) & ~1;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= (addend >> 1) & ~1;
+ break;
case R_V850_TDA_6_8_OFFSET:
- if ((long) relocation > 0xfc || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0x7e) << 1);
+
+ if (addend > 0xfc || addend < 0)
return bfd_reloc_overflow;
- if (relocation & 3)
+ if (addend & 3)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xff81;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= (addend >> 1);
+ break;
case R_V850_TDA_7_8_OFFSET:
- if ((long) relocation > 0xfe || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0x7f) << 1);
+
+ if (addend > 0xfe || addend < 0)
return bfd_reloc_overflow;
- if (relocation & 1)
+ if (addend & 1)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xff80;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= (addend >> 1);
+ break;
case R_V850_TDA_7_7_OFFSET:
- if ((long) relocation > 0x7f || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += insn & 0x7f;
+
+ if (addend > 0x7f || addend < 0)
return bfd_reloc_overflow;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xff80;
- insn |= relocation;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= addend;
+ break;
/* start-sanitize-v850e */
case R_V850_TDA_4_5_OFFSET:
- if ((long) relocation > 0x1e || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0xf) << 1);
+
+ if (addend > 0x1e || addend < 0)
return bfd_reloc_overflow;
- if (relocation & 1)
+ if (addend & 1)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xfff0;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= (addend >> 1);
+ break;
case R_V850_TDA_4_4_OFFSET:
- if ((long) relocation > 0xf || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += insn & 0xf;
+
+ if (addend > 0xf || addend < 0)
return bfd_reloc_overflow;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xfff0;
- insn |= relocation;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ insn |= addend;
+ break;
case R_V850_ZDA_16_16_SPLIT_OFFSET:
case R_V850_SDA_16_16_SPLIT_OFFSET:
- if ((long) relocation > 0xffff || (long) relocation < 0)
- return bfd_reloc_overflow;
+ insn = bfd_get_32 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
- insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc->address);
+ if (addend > 0xffff || addend < 0)
+ return bfd_reloc_overflow;
insn &= 0x0001ffdf;
- insn |= (relocation & 1) << 5;
- insn |= (relocation & ~1) << 16;
+ insn |= (addend & 1) << 5;
+ insn |= (addend & ~1) << 16;
- bfd_put_32 (abfd, insn, (bfd_byte *)data + reloc->address);
+ bfd_put_32 (abfd, insn, address);
return bfd_reloc_ok;
case R_V850_CALLT_6_7_OFFSET:
- if ((long) relocation > 0x7e || (long) relocation < 0)
+ insn = bfd_get_16 (abfd, address);
+
+ if (! replace)
+ addend += ((insn & 0x3f) << 1);
+
+ if (addend > 0x7e || addend < 0)
return bfd_reloc_overflow;
- if (relocation & 1)
+ if (addend & 1)
return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
insn &= 0xff80;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_CALLT_16_16_OFFSET:
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
+ insn |= (addend >> 1);
+ break;
+/* end-sanitize-v850e */
+ }
+
+ bfd_put_16 (abfd, insn, address);
+ return bfd_reloc_ok;
+}
+
+
+/* Insert the addend into the instruction. */
+static bfd_reloc_status_type
+v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err)
+ bfd * abfd;
+ arelent * reloc;
+ asymbol * symbol;
+ PTR data;
+ asection * isection;
+ bfd * obfd;
+ char ** err;
+{
+ long relocation;
+ long insn;
+
+
+ /* If there is an output BFD,
+ and the symbol is not a section name (which is only defined at final link time),
+ and either we are not putting the addend into the instruction
+ or the addend is zero, so there is nothing to add into the instruction
+ then just fixup the address and return. */
+ if (obfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc->howto->partial_inplace
+ || reloc->addend == 0))
+ {
+ reloc->address += isection->output_offset;
return bfd_reloc_ok;
+ }
+#if 0
+ else if (obfd != NULL)
+ {
+ return bfd_reloc_continue;
+ }
+#endif
+
+ /* Catch relocs involving undefined symbols. */
+ if (bfd_is_und_section (symbol->section)
+ && (symbol->flags & BSF_WEAK) == 0
+ && obfd == NULL)
+ return bfd_reloc_undefined;
+
+ /* We handle final linking of some relocs ourselves. */
+
+ /* Is the address of the relocation really within the section? */
+ if (reloc->address > isection->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ /* Work out which section the relocation is targetted at and the
+ initial relocation command value. */
+
+ /* Get symbol value. (Common symbols are special.) */
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ /* Convert input-section-relative symbol value to absolute + addend. */
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc->addend;
+
+ if (reloc->howto->pc_relative == true)
+ {
+ /* Here the variable relocation holds the final address of the
+ symbol we are relocating against, plus any addend. */
+ relocation -= isection->output_section->vma + isection->output_offset;
-/* end-sanitize-v850e */
+ /* Deal with pcrel_offset */
+ relocation -= reloc->address;
}
- return bfd_reloc_continue;
+ /* I've got no clue... */
+ reloc->addend = 0;
+
+ return v850_elf_store_addend_in_insn (abfd, reloc->howto->type, relocation,
+ (bfd_byte *) data + reloc->address, true);
}
@@ -902,9 +944,8 @@ v850_elf_is_local_label_name (abfd, name)
bfd * abfd;
const char * name;
{
- return ((name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
- || (name[0] == '_' && name[1] == '.' && name[2] == 'L'
- && name[3] == '_'));
+ return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
+ || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
}
@@ -950,9 +991,11 @@ v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
case R_V850_22_PCREL:
value -= (input_section->output_section->vma
- + input_section->output_offset);
- value -= offset;
-
+ + input_section->output_offset
+ + offset);
+
+ value = SEXT24 (value); /* Only the bottom 24 bits of the PC are valid */
+
if ((long)value > 0x1fffff || (long)value < -0x200000)
return bfd_reloc_overflow;
@@ -1005,7 +1048,7 @@ v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
case R_V850_ZDA_16_16_OFFSET:
if (sym_sec == NULL)
return bfd_reloc_undefined;
-
+
value -= sym_sec->output_section->vma;
value += (short) bfd_get_16 (input_bfd, hit_data);
@@ -1463,7 +1506,29 @@ v850_elf_relocate_section (output_bfd, info, input_bfd, input_section,
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
{
sec = local_sections[r_symndx];
+#ifdef USE_REL
+ /* The Elf_Internal_Rel structure does not have space for the
+ modified addend value, so we store it in the instruction
+ instead. */
+
+ if (sec->output_offset + sym->st_value != 0)
+ {
+ if (v850_elf_store_addend_in_insn (input_bfd, r_type,
+ sec->output_offset +
+ sym->st_value,
+ contents + rel->r_offset,
+ false)
+ != bfd_reloc_ok)
+ {
+ info->callbacks->warning
+ (info,
+ "Unable to handle relocation during incremental link",
+ NULL, input_bfd, input_section, rel->r_offset);
+ }
+ }
+#else
rel->r_addend += sec->output_offset + sym->st_value;
+#endif
}
}
@@ -1761,6 +1826,239 @@ v850_elf_print_private_bfd_data (abfd, ptr)
return true;
}
+
+/* V850 ELF uses four common sections. One is the usual one, and the
+ others are for (small) objects in one of the special data areas:
+ small, tiny and zero. All the objects are kept together, and then
+ referenced via the gp register, the ep register or the r0 register
+ respectively, which yields smaller, faster assembler code. This
+ approach is copied from elf32-mips.c. */
+
+static asection v850_elf_scom_section;
+static asymbol v850_elf_scom_symbol;
+static asymbol * v850_elf_scom_symbol_ptr;
+static asection v850_elf_tcom_section;
+static asymbol v850_elf_tcom_symbol;
+static asymbol * v850_elf_tcom_symbol_ptr;
+static asection v850_elf_zcom_section;
+static asymbol v850_elf_zcom_symbol;
+static asymbol * v850_elf_zcom_symbol_ptr;
+
+
+/* Given a BFD section, try to locate the corresponding ELF section
+ index. */
+
+static boolean
+v850_elf_section_from_bfd_section (abfd, hdr, sec, retval)
+ bfd * abfd;
+ Elf32_Internal_Shdr * hdr;
+ asection * sec;
+ int * retval;
+{
+ if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
+ {
+ *retval = SHN_V850_SCOMMON;
+ return true;
+ }
+ if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
+ {
+ *retval = SHN_V850_TCOMMON;
+ return true;
+ }
+ if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
+ {
+ *retval = SHN_V850_ZCOMMON;
+ return true;
+ }
+ return false;
+}
+
+/* Handle the special V850 section numbers that a symbol may use. */
+
+static void
+v850_elf_symbol_processing (abfd, asym)
+ bfd * abfd;
+ asymbol * asym;
+{
+ elf_symbol_type * elfsym = (elf_symbol_type *) asym;
+
+ switch (elfsym->internal_elf_sym.st_shndx)
+ {
+ case SHN_V850_SCOMMON:
+ if (v850_elf_scom_section.name == NULL)
+ {
+ /* Initialize the small common section. */
+ v850_elf_scom_section.name = ".scommon";
+ v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
+ v850_elf_scom_section.output_section = & v850_elf_scom_section;
+ v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
+ v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
+ v850_elf_scom_symbol.name = ".scommon";
+ v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_scom_symbol.section = & v850_elf_scom_section;
+ v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
+ }
+ asym->section = & v850_elf_scom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+
+ case SHN_V850_TCOMMON:
+ if (v850_elf_tcom_section.name == NULL)
+ {
+ /* Initialize the tcommon section. */
+ v850_elf_tcom_section.name = ".tcommon";
+ v850_elf_tcom_section.flags = SEC_IS_COMMON;
+ v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
+ v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
+ v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
+ v850_elf_tcom_symbol.name = ".tcommon";
+ v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
+ v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
+ }
+ asym->section = & v850_elf_tcom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+
+ case SHN_V850_ZCOMMON:
+ if (v850_elf_zcom_section.name == NULL)
+ {
+ /* Initialize the zcommon section. */
+ v850_elf_zcom_section.name = ".zcommon";
+ v850_elf_zcom_section.flags = SEC_IS_COMMON;
+ v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
+ v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
+ v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
+ v850_elf_zcom_symbol.name = ".zcommon";
+ v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
+ v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
+ }
+ asym->section = & v850_elf_zcom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+ }
+}
+
+/* Hook called by the linker routine which adds symbols from an object
+ file. We must handle the special MIPS section numbers here. */
+
+/*ARGSUSED*/
+static boolean
+v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
+ bfd * abfd;
+ struct bfd_link_info * info;
+ const Elf_Internal_Sym * sym;
+ const char ** namep;
+ flagword * flagsp;
+ asection ** secp;
+ bfd_vma * valp;
+{
+ switch (sym->st_shndx)
+ {
+ case SHN_V850_SCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".scommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+
+ case SHN_V850_TCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".tcommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+
+ case SHN_V850_ZCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".zcommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+ }
+
+ return true;
+}
+
+/*ARGSIGNORED*/
+static boolean
+v850_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
+ bfd * abfd;
+ struct bfd_link_info * info;
+ const char * name;
+ Elf_Internal_Sym * sym;
+ asection * input_sec;
+{
+ /* If we see a common symbol, which implies a relocatable link, then
+ if a symbol was in a special common section in an input file, mark
+ it as a special common in the output file. */
+
+ if (sym->st_shndx == SHN_COMMON)
+ {
+ if (strcmp (input_sec->name, ".scommon") == 0)
+ sym->st_shndx = SHN_V850_SCOMMON;
+ else if (strcmp (input_sec->name, ".tcommon") == 0)
+ sym->st_shndx = SHN_V850_TCOMMON;
+ else if (strcmp (input_sec->name, ".zcommon") == 0)
+ sym->st_shndx = SHN_V850_ZCOMMON;
+ }
+
+ return true;
+}
+
+static boolean
+v850_elf_section_from_shdr (abfd, hdr, name)
+ bfd * abfd;
+ Elf_Internal_Shdr * hdr;
+ char * name;
+{
+ /* There ought to be a place to keep ELF backend specific flags, but
+ at the moment there isn't one. We just keep track of the
+ sections by their name, instead. */
+
+ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
+ return false;
+
+ switch (hdr->sh_type)
+ {
+ case SHT_V850_SCOMMON:
+ case SHT_V850_TCOMMON:
+ case SHT_V850_ZCOMMON:
+ if (! bfd_set_section_flags (abfd, hdr->bfd_section,
+ (bfd_get_section_flags (abfd,
+ hdr->bfd_section)
+ | SEC_IS_COMMON)))
+ return false;
+ }
+
+ return true;
+}
+
+/* Set the correct type for a V850 ELF section. We do this by the
+ section name, which is a hack, but ought to work. */
+static boolean
+v850_elf_fake_sections (abfd, hdr, sec)
+ bfd * abfd;
+ Elf32_Internal_Shdr * hdr;
+ asection * sec;
+{
+ register const char * name;
+
+ name = bfd_get_section_name (abfd, sec);
+
+ if (strcmp (name, ".scommon") == 0)
+ {
+ hdr->sh_type = SHT_V850_SCOMMON;
+ }
+ else if (strcmp (name, ".tcommon") == 0)
+ {
+ hdr->sh_type = SHT_V850_TCOMMON;
+ }
+ else if (strcmp (name, ".zcommon") == 0)
+ hdr->sh_type = SHT_V850_ZCOMMON;
+
+ return true;
+}
+
+
#define TARGET_LITTLE_SYM bfd_elf32_v850_vec
#define TARGET_LITTLE_NAME "elf32-v850"
@@ -1770,10 +2068,18 @@ v850_elf_print_private_bfd_data (abfd, ptr)
#define elf_info_to_howto 0
#define elf_info_to_howto_rel v850_elf_info_to_howto_rel
+
#define elf_backend_check_relocs v850_elf_check_relocs
#define elf_backend_relocate_section v850_elf_relocate_section
#define elf_backend_object_p v850_elf_object_p
#define elf_backend_final_write_processing v850_elf_final_write_processing
+#define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
+#define elf_backend_symbol_processing v850_elf_symbol_processing
+#define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
+#define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
+#define elf_backend_section_from_shdr v850_elf_section_from_shdr
+#define elf_backend_fake_sections v850_elf_fake_sections
+
#define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
#define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
#define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
generated by cgit v1.1 at 2024-12-12 20:42:54 +0000