/* Hitachi SH specific support for 32-bit ELF
- Copyright 1996, 97, 98, 1999, 2000 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
Contributed by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
Elf_Internal_Sym *));
static boolean sh_elf_finish_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
+static bfd_reloc_status_type sh_elf_reloc_loop
+ PARAMS ((int, bfd *, asection *, bfd_byte *, bfd_vma, asection *,
+ bfd_vma, bfd_vma));
+static boolean sh_elf_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static asection * sh_elf_gc_mark_hook
+ PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+static boolean sh_elf_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+static enum elf_reloc_type_class sh_elf_reloc_type_class
+ PARAMS ((const Elf_Internal_Rela *));
/* The name of the dynamic interpreter. This is put in the .interp
section. */
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
-static reloc_howto_type sh_elf_howto_table[] = {
+static reloc_howto_type sh_elf_howto_table[] =
+{
/* No relocation. */
HOWTO (R_SH_NONE, /* type */
0, /* rightshift */
complain_overflow_signed, /* complain_on_overflow */
sh_elf_ignore_reloc, /* special_function */
"R_SH_REL32", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true), /* pcrel_offset */
contents = elf_section_data (symbol_section)->this_hdr.contents;
else
{
- free_contents = contents
- = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
+ contents = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
if (contents == NULL)
return bfd_reloc_outofrange;
+ free_contents = contents;
if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
(file_ptr) 0,
symbol_section->_raw_size))
return bfd_reloc_overflow;
x = (insn & ~0xff) | (x & 0xff);
- bfd_put_16 (input_bfd, x, contents + addr);
+ bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
return bfd_reloc_ok;
}
case R_SH_DIR32:
insn = bfd_get_32 (abfd, hit_data);
insn += sym_value + reloc_entry->addend;
- bfd_put_32 (abfd, insn, hit_data);
+ bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
break;
case R_SH_IND12W:
insn = bfd_get_16 (abfd, hit_data);
if (insn & 0x800)
sym_value -= 0x1000;
insn = (insn & 0xf000) | (sym_value & 0xfff);
- bfd_put_16 (abfd, insn, hit_data);
+ bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
return bfd_reloc_overflow;
break;
/* This structure is used to map BFD reloc codes to SH ELF relocs. */
-struct elf_reloc_map {
+struct elf_reloc_map
+{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
/* An array mapping BFD reloc codes to SH ELF relocs. */
-static const struct elf_reloc_map sh_reloc_map[] = {
+static const struct elf_reloc_map sh_reloc_map[] =
+{
{ BFD_RELOC_NONE, R_SH_NONE },
{ BFD_RELOC_32, R_SH_DIR32 },
{ BFD_RELOC_CTOR, R_SH_DIR32 },
if (laddr >= sec->_raw_size)
{
(*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
- bfd_get_filename (abfd),
+ bfd_archive_filename (abfd),
(unsigned long) irel->r_offset);
continue;
}
{
((*_bfd_error_handler)
(_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn));
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset, insn));
continue;
}
/* Get the address from which the register is being loaded. The
- displacement in the mov.l instruction is quadrupled. It is a
- displacement from four bytes after the movl instruction, but,
- before adding in the PC address, two least significant bits
- of the PC are cleared. We assume that the section is aligned
- on a four byte boundary. */
+ displacement in the mov.l instruction is quadrupled. It is a
+ displacement from four bytes after the movl instruction, but,
+ before adding in the PC address, two least significant bits
+ of the PC are cleared. We assume that the section is aligned
+ on a four byte boundary. */
paddr = insn & 0xff;
paddr *= 4;
- paddr += (laddr + 4) & ~3;
+ paddr += (laddr + 4) &~ (bfd_vma) 3;
if (paddr >= sec->_raw_size)
{
((*_bfd_error_handler)
(_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
continue;
}
{
((*_bfd_error_handler)
(_("%s: 0x%lx: warning: could not find expected reloc"),
- bfd_get_filename (abfd), (unsigned long) paddr));
+ bfd_archive_filename (abfd), (unsigned long) paddr));
continue;
}
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
else
{
- extsyms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_size));
+ extsyms = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_size);
if (extsyms == NULL)
goto error_return;
free_extsyms = extsyms;
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
+ || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd)
!= symtab_hdr->sh_size))
goto error_return;
}
{
((*_bfd_error_handler)
(_("%s: 0x%lx: warning: symbol in unexpected section"),
- bfd_get_filename (abfd), (unsigned long) paddr));
+ bfd_archive_filename (abfd), (unsigned long) paddr));
continue;
}
it will be handled here like other internal IND12W
relocs. */
bfd_put_16 (abfd,
- 0xb000 | ((foff >> 1) & 0xfff),
+ (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff),
contents + irel->r_offset);
}
else
/* We can't fully resolve this yet, because the external
symbol value may be changed by future relaxing. We let
the final link phase handle it. */
- bfd_put_16 (abfd, 0xb000, contents + irel->r_offset);
+ bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
}
/* See if there is another R_SH_USES reloc referring to the same
{
((*_bfd_error_handler)
(_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
- bfd_get_filename (abfd), (unsigned long) paddr));
+ bfd_archive_filename (abfd), (unsigned long) paddr));
continue;
}
if (irelcount->r_addend == 0)
{
((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
- bfd_get_filename (abfd),
+ bfd_archive_filename (abfd),
(unsigned long) paddr));
continue;
}
else
{
/* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = extsyms;
+ symtab_hdr->contents = (unsigned char *) extsyms;
}
free_extsyms = NULL;
}
}
/* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count, toaddr - addr - count);
+ memmove (contents + addr, contents + addr + count,
+ (size_t) (toaddr - addr - count));
if (irelalign == NULL)
sec->_cooked_size -= count;
else
BFD_ASSERT ((count & 1) == 0);
for (i = 0; i < count; i += 2)
- bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i);
+ bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
}
/* Adjust all the relocs. */
insn += adjust / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
case R_SH_IND12W:
insn += adjust / 2;
if ((oinsn & 0xf000) != (insn & 0xf000))
overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
case R_SH_DIR8WPL:
}
if ((oinsn & 0xff00) != (insn & 0xff00))
overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
break;
case R_SH_SWITCH8:
voff += adjust;
if (voff < - 0x8000 || voff >= 0x8000)
overflow = true;
- bfd_put_signed_16 (abfd, voff, contents + nraddr);
+ bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
break;
case R_SH_SWITCH32:
voff += adjust;
- bfd_put_signed_32 (abfd, voff, contents + nraddr);
+ bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
break;
case R_SH_USES:
{
((*_bfd_error_handler)
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
bfd_set_error (bfd_error_bad_value);
return false;
}
if (start > addr
&& start < toaddr
&& (stop <= addr || stop >= toaddr))
- bfd_put_signed_32 (abfd, voff + count,
+ bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
ocontents + irelscan->r_offset);
else if (stop > addr
&& stop < toaddr
&& (start <= addr || start >= toaddr))
- bfd_put_signed_32 (abfd, voff - count,
+ bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
ocontents + irelscan->r_offset);
}
{
/* Tail recursion. */
return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
- alignto - alignaddr);
+ (int) (alignto - alignaddr));
}
}
Elf_Internal_Rela *irel, *irelend;
bfd_vma *labels = NULL;
bfd_vma *label, *label_end;
+ bfd_size_type amt;
*pswapped = false;
irelend = internal_relocs + sec->reloc_count;
/* Get all the addresses with labels on them. */
- labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma));
+ amt = sec->reloc_count;
+ amt *= sizeof (bfd_vma);
+ labels = (bfd_vma *) bfd_malloc (amt);
if (labels == NULL)
goto error_return;
label_end = labels;
/* Swap the instructions themselves. */
i1 = bfd_get_16 (abfd, contents + addr);
i2 = bfd_get_16 (abfd, contents + addr + 2);
- bfd_put_16 (abfd, i2, contents + addr);
- bfd_put_16 (abfd, i1, contents + addr + 2);
+ bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
+ bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
/* Adjust all reloc addresses. */
irelend = internal_relocs + sec->reloc_count;
insn += add / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
overflow = true;
- bfd_put_16 (abfd, insn, loc);
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
case R_SH_IND12W:
insn += add / 2;
if ((oinsn & 0xf000) != (insn & 0xf000))
overflow = true;
- bfd_put_16 (abfd, insn, loc);
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
case R_SH_DIR8WPL:
insn += add / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
overflow = true;
- bfd_put_16 (abfd, insn, loc);
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
}
break;
{
((*_bfd_error_handler)
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
bfd_set_error (bfd_error_bad_value);
return false;
}
/* First entry in an absolute procedure linkage table look like this. */
-static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] = {
+#if 1
+/* Note - this code has been "optimised" not to use r2. r2 is used by
+ GCC to return the address of large strutcures, so it should not be
+ corrupted here. This does mean however, that this PLT does not conform
+ to the SH PIC ABI. That spec says that r0 contains the type of the PLT
+ and r2 contains the GOT id. This version stores the GOT id in r0 and
+ ignores the type. Loaders can easily detect this difference however,
+ since the type will always be 0 or 8, and the GOT ids will always be
+ greater than or equal to 12. */
+static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x05, /* mov.l 2f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x2f, 0x06, /* mov.l r0,@-r15 */
+ 0xd0, 0x03, /* mov.l 1f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x60, 0xf6, /* mov.l @r15+,r0 */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x05, 0xd0, /* mov.l 2f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x06, 0x2f, /* mov.l r0,@-r15 */
+ 0x03, 0xd0, /* mov.l 1f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xf6, 0x60, /* mov.l @r15+,r0 */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+/* Sebsequent entries in an absolute procedure linkage table look like
+ this. */
+
+static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0xd1, 0x02, /* mov.l 0f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x60, 0x13, /* mov r1,r0 */
+ 0xd1, 0x03, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x02, 0xd1, /* mov.l 0f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x13, 0x60, /* mov r1,r0 */
+ 0x03, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+/* Entries in a PIC procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x00, 0xce, /* mov.l @(r0,r12),r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0x50, 0xc2, /* mov.l @(8,r12),r0 */
+ 0xd1, 0x03, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x50, 0xc1, /* mov.l @(4,r12),r0 */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0xce, 0x00, /* mov.l @(r0,r12),r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0xc2, 0x50, /* mov.l @(8,r12),r0 */
+ 0x03, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xc1, 0x50, /* mov.l @(4,r12),r0 */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+
+#else /* These are the old style PLT entries. */
+static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+{
0xd0, 0x04, /* mov.l 1f,r0 */
0xd2, 0x05, /* mov.l 2f,r2 */
0x60, 0x02, /* mov.l @r0,r0 */
0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
};
-static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] = {
+static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+{
0x04, 0xd0, /* mov.l 1f,r0 */
0x05, 0xd2, /* mov.l 2f,r2 */
0x02, 0x60, /* mov.l @r0,r0 */
/* Sebsequent entries in an absolute procedure linkage table look like
this. */
-static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] = {
+static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+{
0xd0, 0x04, /* mov.l 1f,r0 */
0x60, 0x02, /* mov.l @r0,r0 */
0xd2, 0x02, /* mov.l 0f,r2 */
0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] = {
+static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+{
0x04, 0xd0, /* mov.l 1f,r0 */
0x02, 0x60, /* mov.l @r0,r0 */
0x02, 0xd2, /* mov.l 0f,r2 */
/* Entries in a PIC procedure linkage table look like this. */
-static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] = {
+static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+{
0xd0, 0x04, /* mov.l 1f,r0 */
0x00, 0xce, /* mov.l @(r0,r12),r0 */
0x40, 0x2b, /* jmp @r0 */
0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
};
-static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] = {
+static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+{
0x04, 0xd0, /* mov.l 1f,r0 */
0xce, 0x00, /* mov.l @(r0,r12),r0 */
0x2b, 0x40, /* jmp @r0 */
0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
};
+#endif /* old style PLT entries. */
static const bfd_byte *elf_sh_plt0_entry;
static const bfd_byte *elf_sh_plt_entry;
/* This structure keeps track of the number of PC relative relocs we
have copied for a given symbol. */
-struct elf_sh_pcrel_relocs_copied {
+struct elf_sh_pcrel_relocs_copied
+{
/* Next section. */
struct elf_sh_pcrel_relocs_copied *next;
/* A section in dynobj. */
/* sh ELF linker hash entry. */
-struct elf_sh_link_hash_entry {
+struct elf_sh_link_hash_entry
+{
struct elf_link_hash_entry root;
/* Number of PC relative relocs copied for this symbol. */
/* sh ELF linker hash table. */
-struct elf_sh_link_hash_table {
+struct elf_sh_link_hash_table
+{
struct elf_link_hash_table root;
};
bfd *abfd;
{
struct elf_sh_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
- ret = ((struct elf_sh_link_hash_table *)
- bfd_alloc (abfd, sizeof (struct elf_sh_link_hash_table)));
+ ret = (struct elf_sh_link_hash_table *) bfd_alloc (abfd, amt);
if (ret == (struct elf_sh_link_hash_table *) NULL)
return NULL;
|| ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
continue;
secname = bfd_get_section_name (abfd, sec);
- relname = (char *) bfd_malloc (strlen (secname) + 6);
+ relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
strcpy (relname, ".rela");
strcat (relname, secname);
s = bfd_make_section (abfd, relname);
static boolean
sh_elf_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
+ bfd *output_bfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info;
{
bfd *dynobj;
asection *s;
boolean plt;
boolean relocs;
- boolean reltext;
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
memory for them. */
plt = false;
relocs = false;
- reltext = false;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
}
else
{
- asection *target;
-
/* Remember whether there are any reloc sections other
than .rela.plt. */
if (strcmp (name, ".rela.plt") != 0)
- {
- const char *outname;
-
- relocs = true;
-
- /* If this relocation section applies to a read only
- section, then we probably need a DT_TEXTREL
- entry. The entries in the .rela.plt section
- really apply to the .got section, which we
- created ourselves and so know is not readonly. */
- outname = bfd_get_section_name (output_bfd,
- s->output_section);
- target = bfd_get_section_by_name (output_bfd, outname + 5);
- if (target != NULL
- && (target->flags & SEC_READONLY) != 0
- && (target->flags & SEC_ALLOC) != 0)
- reltext = true;
- }
+ relocs = true;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
must add the entries now so that we get the correct size for
the .dynamic section. The DT_DEBUG entry is filled in by the
dynamic linker and used by the debugger. */
+#define add_dynamic_entry(TAG, VAL) \
+ bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+
if (! info->shared)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
+ if (!add_dynamic_entry (DT_DEBUG, 0))
return false;
}
if (plt)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
- || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
+ if (!add_dynamic_entry (DT_PLTGOT, 0)
+ || !add_dynamic_entry (DT_PLTRELSZ, 0)
+ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || !add_dynamic_entry (DT_JMPREL, 0))
return false;
}
if (relocs)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
- sizeof (Elf32_External_Rela)))
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
return false;
}
- if (reltext)
+ if ((info->flags & DF_TEXTREL) != 0)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
return false;
}
}
+#undef add_dynamic_entry
return true;
}
return true;
}
-
\f
/* Relocate an SH ELF section. */
howto = sh_elf_howto_table + r_type;
- /* This is a final link. */
+ /* For relocs that aren't partial_inplace, we get the addend from
+ the relocation. */
+ if (! howto->partial_inplace)
+ addend = rel->r_addend;
+
h = NULL;
sym = NULL;
sec = NULL;
section symbol winds up in the output section. */
sym = local_syms + r_symndx;
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- goto final_link_relocate;
+ {
+ if (! howto->partial_inplace)
+ {
+ /* For relocations with the addend in the
+ relocation, we need just to update the addend.
+ All real relocs are of type partial_inplace; this
+ code is mostly for completeness. */
+ rel->r_addend += sec->output_offset + sym->st_value;
+
+ continue;
+ }
+
+ /* Relocs of type partial_inplace need to pick up the
+ contents in the contents and add the offset resulting
+ from the changed location of the section symbol.
+ Using _bfd_final_link_relocate (e.g. goto
+ final_link_relocate) here would be wrong, because
+ relocations marked pc_relative would get the current
+ location subtracted, and we must only do that at the
+ final link. */
+ r = _bfd_relocate_contents (howto, input_bfd,
+ sec->output_offset
+ + sym->st_value,
+ contents + rel->r_offset);
+ goto relocation_done;
+ }
continue;
}
{
(*_bfd_error_handler)
(_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
- bfd_get_filename (input_bfd), h->root.root.string,
+ bfd_archive_filename (input_bfd), h->root.root.string,
bfd_get_section_name (input_bfd, input_section));
relocation = 0;
}
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
- else if (info->shared && !info->symbolic && !info->no_undefined)
+ else if (info->shared
+ && (!info->symbolic || info->allow_shlib_undefined)
+ && !info->no_undefined)
relocation = 0;
else
{
break;
case R_SH_IND12W:
+ relocation -= 4;
+ goto final_link_relocate;
+
case R_SH_DIR8WPN:
case R_SH_DIR8WPZ:
case R_SH_DIR8WPL:
- /* These should normally be handled by the assembler, but at
- least IND12W is generated by ourselves, so we must deal
- with it. */
- relocation -= 4;
- goto final_link_relocate;
+ /* If the reloc is against the start of this section, then
+ the assembler has already taken care of it and the reloc
+ is here only to assist in relaxing. If the reloc is not
+ against the start of this section, then it's against an
+ external symbol and we must deal with it ourselves. */
+ if (input_section->output_section->vma + input_section->output_offset
+ != relocation)
+ {
+ int disp = (relocation
+ - input_section->output_section->vma
+ - input_section->output_offset
+ - rel->r_offset);
+ int mask = 0;
+ switch (r_type)
+ {
+ case R_SH_DIR8WPN:
+ case R_SH_DIR8WPZ: mask = 1; break;
+ case R_SH_DIR8WPL: mask = 3; break;
+ default: mask = 0; break;
+ }
+ if (disp & mask)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
+ bfd_archive_filename (input_section->owner),
+ (unsigned long) rel->r_offset));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ relocation -= 4;
+ goto final_link_relocate;
+ }
+ r = bfd_reloc_ok;
+ break;
default:
bfd_set_error (bfd_error_bad_value);
case R_SH_DIR32:
case R_SH_REL32:
if (info->shared
+ && r_symndx != 0
&& (input_section->flags & SEC_ALLOC) != 0
&& (r_type != R_SH_REL32
|| (h != NULL
BFD_ASSERT (h != NULL && h->dynindx != -1);
relocate = false;
outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
- outrel.r_addend = rel->r_addend;
+ outrel.r_addend
+ = bfd_get_32 (input_bfd, contents + rel->r_offset);
}
else
{
{
relocate = true;
outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
- outrel.r_addend = relocation + rel->r_addend;
+ outrel.r_addend
+ = relocation + bfd_get_32 (input_bfd,
+ contents + rel->r_offset);
}
else
{
BFD_ASSERT (h->dynindx != -1);
relocate = false;
outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
- outrel.r_addend = relocation + rel->r_addend;
+ outrel.r_addend
+ = relocation + bfd_get_32 (input_bfd,
+ contents + rel->r_offset);
}
}
if (! relocate)
continue;
}
- else if (r_type == R_SH_DIR32)
- addend = rel->r_addend;
goto final_link_relocate;
case R_SH_GOT32:
}
}
+ relocation_done:
if (r != bfd_reloc_ok)
{
switch (r)
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- input_section->_raw_size);
+ (size_t) input_section->_raw_size);
if ((input_section->flags & SEC_RELOC) != 0
&& input_section->reloc_count > 0)
Elf_Internal_Sym *isymp;
asection **secpp;
Elf32_External_Sym *esym, *esymend;
+ bfd_size_type size;
if (symtab_hdr->contents != NULL)
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
else
{
- external_syms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym)));
- if (external_syms == NULL && symtab_hdr->sh_info > 0)
+ size = symtab_hdr->sh_info;
+ size *= sizeof (Elf32_External_Sym);
+ external_syms = (Elf32_External_Sym *) bfd_malloc (size);
+ if (external_syms == NULL && size != 0)
goto error_return;
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (external_syms, sizeof (Elf32_External_Sym),
- symtab_hdr->sh_info, input_bfd)
- != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
+ || bfd_bread (external_syms, size, input_bfd) != size)
goto error_return;
}
if (internal_relocs == NULL)
goto error_return;
- internal_syms = ((Elf_Internal_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf_Internal_Sym)));
+ size = symtab_hdr->sh_info;
+ size *= sizeof (Elf_Internal_Sym);
+ internal_syms = (Elf_Internal_Sym *) bfd_malloc (size);
if (internal_syms == NULL && symtab_hdr->sh_info > 0)
goto error_return;
- sections = (asection **) bfd_malloc (symtab_hdr->sh_info
- * sizeof (asection *));
+ size = symtab_hdr->sh_info;
+ size *= sizeof (asection *);
+ sections = (asection **) bfd_malloc (size);
if (sections == NULL && symtab_hdr->sh_info > 0)
goto error_return;
free (sections);
return NULL;
}
+
static asection *
sh_elf_gc_mark_hook (abfd, info, rel, h, sym)
bfd *abfd;
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
&& sym->st_shndx != SHN_COMMON))
- {
- return bfd_section_from_elf_index (abfd, sym->st_shndx);
- }
+ return bfd_section_from_elf_index (abfd, sym->st_shndx);
}
return NULL;
}
symbol. */
if (local_got_offsets == NULL)
{
- size_t size;
+ bfd_size_type size;
register unsigned int i;
- size = symtab_hdr->sh_info * sizeof (bfd_vma);
+ size = symtab_hdr->sh_info;
+ size *= sizeof (bfd_vma);
local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
if (local_got_offsets == NULL)
return false;
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
return false;
}
+ if (sec->flags & SEC_READONLY)
+ info->flags |= DF_TEXTREL;
}
sreloc->_raw_size += sizeof (Elf32_External_Rela);
if (p == NULL)
{
p = ((struct elf_sh_pcrel_relocs_copied *)
- bfd_alloc (dynobj, sizeof *p));
+ bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
if (p == NULL)
return false;
p->next = eh->pcrel_relocs_copied;
static boolean
sh_elf_copy_private_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+ bfd * ibfd;
+ bfd * obfd;
{
- if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
{
(*_bfd_error_handler)
("%s: uses %s instructions while previous modules use %s instructions",
- bfd_get_filename (ibfd),
+ bfd_archive_filename (ibfd),
EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
bfd_set_error (bfd_error_bad_value);
rel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
- + (h->got.offset &~ 1));
+ + (h->got.offset &~ (bfd_vma) 1));
/* If this is a -Bsymbolic link, and the symbol is defined
locally, we just want to emit a RELATIVE reloc. Likewise if
return true;
}
+static enum elf_reloc_type_class
+sh_elf_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_SH_RELATIVE:
+ return reloc_class_relative;
+ case R_SH_JMP_SLOT:
+ return reloc_class_plt;
+ case R_SH_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
+}
+
#ifndef ELF_ARCH
#define TARGET_BIG_SYM bfd_elf32_sh_vec
#define TARGET_BIG_NAME "elf32-sh"
sh_elf_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
sh_elf_finish_dynamic_sections
+#define elf_backend_reloc_type_class sh_elf_reloc_type_class
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 1
projects / deliverable / binutils-gdb.git / blobdiff