/* PowerPC-specific support for 32-bit ELF
- Copyright 1994, 1995, 1996 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
static void ppc_elf_info_to_howto
PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
static void ppc_elf_howto_init PARAMS ((void));
+static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword));
static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
+static int ppc_elf_additional_program_headers PARAMS ((bfd *));
+static boolean ppc_elf_modify_segment_map PARAMS ((bfd *));
+
static boolean ppc_elf_section_from_shdr PARAMS ((bfd *,
Elf32_Internal_Shdr *,
char *));
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
+/* The size in bytes of an entry in the procedure linkage table, and of the initial size
+ of the plt reserved for the dynamic linker. */
+
+#define PLT_ENTRY_SIZE 12
+#define PLT_INITIAL_ENTRY_SIZE 72
+
\f
static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ];
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ ppc_elf_addr16_ha_reloc, /* special_function */
"R_PPC_ADDR16_HA", /* name */
false, /* partial_inplace */
0, /* src_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
- the symbol. FIXME: Not supported. */
+ the symbol. */
HOWTO (R_PPC_GOT16_HA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
- small data items. FIXME: Not supported. */
+ small data items. */
HOWTO (R_PPC_SDAREL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0xffff, /* dst_mask */
false), /* pcrel_offset */
- /* 32-bit section relative relocation. FIXME: not supported. */
+ /* 32-bit section relative relocation. */
HOWTO (R_PPC_SECTOFF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* dst_mask */
true), /* pcrel_offset */
- /* 16-bit lower half section relative relocation. FIXME: not supported. */
+ /* 16-bit lower half section relative relocation. */
HOWTO (R_PPC_SECTOFF_LO, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0xffff, /* dst_mask */
false), /* pcrel_offset */
- /* 16-bit upper half section relative relocation. FIXME: not supported. */
+ /* 16-bit upper half section relative relocation. */
HOWTO (R_PPC_SECTOFF_HI, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0xffff, /* dst_mask */
false), /* pcrel_offset */
- /* 16-bit upper half adjusted section relative relocation. FIXME: not supported. */
+ /* 16-bit upper half adjusted section relative relocation. */
HOWTO (R_PPC_SECTOFF_HA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
- small data items. FIXME: Not supported. */
+ small data items. */
HOWTO (R_PPC_EMB_SDA2REL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
field with the appropriate register (0, 2, or 13). */
HOWTO (R_PPC_EMB_SDA21, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
}
+/* Handle the R_PPC_ADDR16_HA reloc. */
+
+static bfd_reloc_status_type
+ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ bfd_vma relocation;
+
+ if (output_bfd != NULL)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ reloc_entry->addend += (relocation & 0x8000) << 1;
+
+ return bfd_reloc_continue;
+}
+
/* Function to set whether a module needs the -mrelocatable bit set. */
static boolean
bfd *ibfd;
bfd *obfd;
{
- /* This function is selected based on the input vector. We only
- want to copy information over if the output BFD also uses Elf
- format. */
- if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
BFD_ASSERT (!elf_flags_init (obfd)
return false;
}
- /* This function is selected based on the input vector. We only
- want to copy information over if the output BFD also uses Elf
- format. */
- if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
new_flags = elf_elfheader (ibfd)->e_flags;
("%s: compiled normally and linked with modules compiled with -mrelocatable",
bfd_get_filename (ibfd));
}
- else if ((new_flags & EF_PPC_RELOCATABLE_LIB) != 0)
- elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE_LIB;
+ /* If -mrelocatable-lib is linked with an object without -mrelocatable-lib, turn off
+ the -mrelocatable-lib, since at least one module isn't relocatable. */
+ else if ((old_flags & EF_PPC_RELOCATABLE_LIB) != 0
+ && (new_flags & EF_PPC_RELOCATABLE_LIB) == 0)
+ elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
/* Do not warn about eabi vs. V.4 mismatch, just or in the bit if any module uses it */
if ((asect->flags & SEC_SORT_ENTRIES) != 0)
shdr->sh_type = SHT_ORDERED;
+
+ return true;
}
\f
defaults.which = which;
defaults.hole_written_p = false;
defaults.alignment = 2;
- defaults.flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
+ defaults.flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
switch (which)
{
defaults.sym_offset = 4;
break;
+ case LINKER_SECTION_PLT: /* .plt section */
+ defaults.name = ".plt";
+ defaults.rel_name = ".rela.plt";
+ defaults.sym_name = (char *)0;
+ defaults.max_hole_offset = 0;
+ defaults.hole_size = 0;
+ defaults.sym_offset = 0;
+ defaults.flags &= ~SEC_LOAD;
+ break;
+
case LINKER_SECTION_SDATA: /* .sdata/.sbss section */
defaults.name = ".sdata";
defaults.rel_name = ".rela.sdata";
defaults.bss_name = ".sbss2";
defaults.sym_name = "_SDA2_BASE_";
defaults.sym_offset = 32768;
+ defaults.flags |= SEC_READONLY;
break;
}
return lsect;
}
+\f
+/* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we need to bump up
+ the number of section headers. */
+
+static int
+ppc_elf_additional_program_headers (abfd)
+ bfd *abfd;
+{
+ asection *s;
+ int ret;
+
+ ret = 0;
+
+ s = bfd_get_section_by_name (abfd, ".interp");
+ if (s != NULL)
+ ++ret;
+
+ s = bfd_get_section_by_name (abfd, ".sbss2");
+ if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
+ ++ret;
+
+ s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
+ if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
+ ++ret;
+
+ return ret;
+}
+
+/* Modify the segment map if needed */
+
+static boolean
+ppc_elf_modify_segment_map (abfd)
+ bfd *abfd;
+{
+ return true;
+}
\f
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
{
+ bfd *dynobj = elf_hash_table (info)->dynobj;
+ asection *s;
+ unsigned int power_of_two;
+ bfd_vma plt_offset;
+
#ifdef DEBUG
- fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called\n");
+ fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", h->root.root.string);
+#endif
+
+ /* Make sure we know what is going on here. */
+ BFD_ASSERT (dynobj != NULL
+ && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
+ || h->weakdef != NULL
+ || ((h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_REF_REGULAR) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)));
+
+
+ /* If this is a function, put it in the procedure linkage table. We
+ will fill in the contents of the procedure linkage table later,
+ when we know the address of the .got section. */
+ if (h->type == STT_FUNC
+ || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ if (! info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
+ {
+ /* This case can occur if we saw a PLT32 reloc in an input
+ file, but the symbol was never referred to by a dynamic
+ object. In such a case, we don't actually need to build
+ a procedure linkage table, and we can just do a PC32
+ reloc instead. */
+ BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
+ return true;
+ }
+
+ /* Make sure this symbol is output as a dynamic symbol. */
+ if (h->dynindx == -1)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
+ }
+
+ s = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (s != NULL);
+
+ /* If this is the first .plt entry, make room for the special
+ first entry. */
+ if (s->_raw_size == 0)
+ s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
+
+ /* The PowerPC PLT is actually composed of two parts, the first part
+ is 2 words (for a load and a jump), and then there is a remaining
+ word available at the end. */
+ plt_offset = (PLT_INITIAL_ENTRY_SIZE
+ + 8 * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE));
+
+ /* If this symbol is not defined in a regular file, and we are
+ not generating a shared library, then set the symbol to this
+ location in the .plt. This is required to make function
+ pointers compare as equal between the normal executable and
+ the shared library. */
+ if (! info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ h->root.u.def.section = s;
+ h->root.u.def.value = plt_offset;
+ }
+
+ h->plt_offset = plt_offset;
+
+ /* Make room for this entry. */
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+#if 0
+ /* We also need to make an entry in the .got.plt section, which
+ will be placed in the .got section by the linker script. */
+
+ s = bfd_get_section_by_name (dynobj, ".got.plt");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size += 4;
#endif
+
+ /* We also need to make an entry in the .rela.plt section. */
+
+ s = bfd_get_section_by_name (dynobj, ".rela.plt");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size += sizeof (Elf32_External_Rela);
+
+ return true;
+ }
+
+ /* If this is a weak symbol, and there is a real definition, the
+ processor independent code will have arranged for us to see the
+ real definition first, and we can just use the same value. */
+ if (h->weakdef != NULL)
+ {
+ BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
+ || h->weakdef->root.type == bfd_link_hash_defweak);
+ h->root.u.def.section = h->weakdef->root.u.def.section;
+ h->root.u.def.value = h->weakdef->root.u.def.value;
+ return true;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
+
+ /* If we are creating a shared library, we must presume that the
+ only references to the symbol are via the global offset table.
+ For such cases we need not do anything here; the relocations will
+ be handled correctly by relocate_section. */
+ if (info->shared)
+ return true;
+
+ /* We must allocate the symbol in our .dynbss section, which will
+ become part of the .bss section of the executable. There will be
+ an entry for this symbol in the .dynsym section. The dynamic
+ object will contain position independent code, so all references
+ from the dynamic object to this symbol will go through the global
+ offset table. The dynamic linker will use the .dynsym entry to
+ determine the address it must put in the global offset table, so
+ both the dynamic object and the regular object will refer to the
+ same memory location for the variable. */
+
+ s = bfd_get_section_by_name (dynobj, ".dynbss");
+ BFD_ASSERT (s != NULL);
+
+ /* If the symbol is currently defined in the .bss section of the
+ dynamic object, then it is OK to simply initialize it to zero.
+ If the symbol is in some other section, we must generate a
+ R_PPC_COPY reloc to tell the dynamic linker to copy the initial
+ value out of the dynamic object and into the runtime process
+ image. We need to remember the offset into the .rela.bss section
+ we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_LOAD) != 0)
+ {
+ asection *srel;
+
+ srel = bfd_get_section_by_name (dynobj, ".rela.bss");
+ BFD_ASSERT (srel != NULL);
+ srel->_raw_size += sizeof (Elf32_External_Rel);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ }
+
+ /* We need to figure out the alignment required for this symbol. I
+ have no idea how ELF linkers handle this. */
+ power_of_two = bfd_log2 (h->size);
+ if (power_of_two > 3)
+ power_of_two = 3;
+
+ /* Apply the required alignment. */
+ s->_raw_size = BFD_ALIGN (s->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > bfd_get_section_alignment (dynobj, s))
+ {
+ if (! bfd_set_section_alignment (dynobj, s, power_of_two))
+ return false;
+ }
+
+ /* Define the symbol as being at this point in the section. */
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
+
+ /* Increment the section size to make room for the symbol. */
+ s->_raw_size += h->size;
+
return true;
}
{
bfd *dynobj;
asection *s;
+ boolean plt;
+ boolean relocs;
boolean reltext;
- boolean relplt;
#ifdef DEBUG
fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
-
- /* Make space for the trailing nop in .plt. */
- s = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (s != NULL);
- if (s->_raw_size > 0)
- s->_raw_size += 4;
}
else
{
/* We may have created entries in the .rela.got, .rela.sdata, and
- .rela.sdata2 section2. However, if we are not creating the
+ .rela.sdata2 sections. However, if we are not creating the
dynamic sections, we will not actually use these entries. Reset
the size of .rela.got, et al, which will cause it to get
stripped from the output file below. */
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
memory for them. */
+ plt = false;
+ relocs = false;
reltext = false;
- relplt = false;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
boolean strip;
- if ((s->flags & SEC_IN_MEMORY) == 0)
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
/* It's OK to base decisions on the section name, because none
strip = false;
-#if 0
- if (strncmp (name, ".rela", 5) == 0)
+ if (strcmp (name, ".plt") == 0)
+ {
+ if (s->_raw_size == 0)
+ {
+ /* Strip this section if we don't need it; see the
+ comment below. */
+ strip = true;
+ }
+ else
+ {
+ /* Remember whether there is a PLT. */
+ plt = true;
+ }
+ }
+ else if (strncmp (name, ".rela", 5) == 0)
{
if (s->_raw_size == 0)
{
/* If we don't need this section, strip it from the
- output file. This is to handle .rela.bss and
- .rel.plt. We must create it in
- create_dynamic_sections, because it must be created
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
before the linker maps input sections to output
sections. The linker does that before
adjust_dynamic_symbol is called, and it is that
{
asection *target;
- /* If this relocation section applies to a read only
- section, then we probably need a DT_TEXTREL entry. */
- target = bfd_get_section_by_name (output_bfd, name + 5);
- if (target != NULL
- && (target->flags & SEC_READONLY) != 0)
- reltext = true;
-
- if (strcmp (name, ".rela.plt") == 0)
- relplt = true;
+ /* Remember whether there are any reloc sections other
+ than .rel.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 .rel.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 + 4);
+ if (target != NULL
+ && (target->flags & SEC_READONLY) != 0)
+ reltext = true;
+ }
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
s->reloc_count = 0;
}
}
- else
-#endif
- if (strcmp (name, ".plt") != 0
- && strcmp (name, ".got") != 0
- && strcmp (name, ".sdata") != 0
- && strcmp (name, ".sdata2") != 0)
+ else if (strcmp (name, ".got") != 0
+ && strcmp (name, ".sdata") != 0
+ && strcmp (name, ".sdata2") != 0)
{
/* It's not one of our sections, so don't allocate space. */
continue;
}
/* Allocate memory for the section contents. */
- s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
if (s->contents == NULL && s->_raw_size != 0)
return false;
}
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0))
- return false;
-
- if (relplt)
+ if (plt)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
+ 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_REL)
|| ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
return false;
}
- 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)))
- return false;
+ if (relocs)
+ {
+ if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, DT_RELA)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_RELENT,
+ sizeof (Elf32_External_Rela)))
+ return false;
+ }
if (reltext)
{
asection *sec;
const Elf_Internal_Rela *relocs;
{
+ boolean ret = true;
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
+ bfd_vma *local_got_offsets;
elf_linker_section_t *got;
+ elf_linker_section_t *plt;
elf_linker_section_t *sdata;
elf_linker_section_t *sdata2;
asection *sreloc;
return true;
#ifdef DEBUG
- fprintf (stderr, "ppc_elf_check_relocs called for section %s\n",
- bfd_get_section_name (abfd, sec));
+ fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n",
+ bfd_get_section_name (abfd, sec),
+ bfd_get_filename (abfd));
#endif
/* Create the linker generated sections all the time so that the special
{
got = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_GOT);
if (!got)
- return false;
+ ret = false;
}
+#if 0
+ if ((plt = elf_linker_section (abfd, LINKER_SECTION_PLT)) == NULL)
+ {
+ plt = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_PLT);
+ if (!plt)
+ ret = false;
+ }
+#endif
+
if ((sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA)) == NULL)
{
sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
if (!sdata)
- return false;
+ ret = false;
}
{
sdata2 = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA2);
if (!sdata2)
- return false;
+ ret = false;
}
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
+ local_got_offsets = elf_local_got_offsets (abfd);
sreloc = NULL;
switch (ELF32_R_TYPE (rel->r_info))
{
- default:
- break;
-
/* GOT16 relocations */
case R_PPC_GOT16:
case R_PPC_GOT16_LO:
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
- return false;
+ {
+ ret = false;
+ break;
+ }
if (!bfd_elf32_create_pointer_linker_section (abfd, info, got, h, rel))
- return false;
+ ret = false;
break;
/* Indirect .sdata relocation */
case R_PPC_EMB_SDAI16:
+ if (info->shared)
+ {
+ (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
+ bfd_get_filename (abfd),
+ "R_PPC_EMB_SDAI16");
+ ret = false;
+ break;
+ }
+
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
- return false;
+ {
+ ret = false;
+ break;
+ }
- BFD_ASSERT (!info->shared);
if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata, h, rel))
- return false;
+ ret = false;
break;
/* Indirect .sdata2 relocation */
case R_PPC_EMB_SDA2I16:
+ if (info->shared)
+ {
+ (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
+ bfd_get_filename (abfd),
+ "R_PPC_EMB_SDA2I16");
+ ret = false;
+ break;
+ }
+
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
return false;
- BFD_ASSERT (!info->shared);
if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata2, h, rel))
return false;
break;
-#if 0
+ case R_PPC_SDAREL16:
+ case R_PPC_EMB_SDA2REL:
+ case R_PPC_EMB_SDA21:
+ if (info->shared)
+ {
+ (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
+ bfd_get_filename (abfd),
+ ppc_elf_howto_table[(int)ELF32_R_TYPE (rel->r_info)]->name);
+ ret = false;
+ }
+ break;
+
case R_PPC_PLT32:
case R_PPC_PLTREL24:
case R_PPC_PLT16_LO:
/* It does not make sense to have a procedure linkage
table entry for a local symbol. */
bfd_set_error (bfd_error_bad_value);
- return false;
+ ret = false;
+ break;
}
/* Make sure this symbol is output as a dynamic symbol. */
if (h->dynindx == -1)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
+ {
+ ret = false;
+ break;
+ }
}
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
break;
- case R_SPARC_PC10:
- case R_SPARC_PC22:
+ /* the following relocations don't need to propigate the relocation if
+ linking a shared object since they are section relative. */
+ case R_PPC_SECTOFF:
+ case R_PPC_SECTOFF_LO:
+ case R_PPC_SECTOFF_HI:
+ case R_PPC_SECTOFF_HA:
+ break;
+
+ /* This refers only to functions defined in the shared library */
+ case R_PPC_LOCAL24PC:
+ break;
+
+ /* When creating a shared object, we must copy these
+ relocs into the output file. We create a reloc
+ section in dynobj and make room for the reloc. */
+ case R_PPC_REL24:
if (h != NULL
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
- /* Fall through. */
- case R_SPARC_DISP8:
- case R_SPARC_DISP16:
- case R_SPARC_DISP32:
- case R_SPARC_WDISP30:
- case R_SPARC_WDISP22:
+ /* fall through */
+
+ case R_PPC_REL14:
+ case R_PPC_REL14_BRTAKEN:
+ case R_PPC_REL14_BRNTAKEN:
if (h == NULL)
break;
- /* Fall through. */
- case R_SPARC_8:
- case R_SPARC_16:
- case R_SPARC_32:
- case R_SPARC_HI22:
- case R_SPARC_22:
- case R_SPARC_13:
- case R_SPARC_LO10:
- case R_SPARC_UA32:
+ /* fall through */
+
+ default:
if (info->shared
&& (sec->flags & SEC_ALLOC) != 0)
{
- /* When creating a shared object, we must copy these
- relocs into the output file. We create a reloc
- section in dynobj and make room for the reloc. */
+#ifdef DEBUG
+ fprintf (stderr, "ppc_elf_check_relocs need to create relocation for %s\n",
+ (h && h->root.root.string) ? h->root.root.string : "<unknown>");
+#endif
if (sreloc == NULL)
{
const char *name;
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
if (name == NULL)
- return false;
+ {
+ ret = false;
+ break;
+ }
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
&& strcmp (bfd_get_section_name (abfd, sec),
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
- return false;
+ {
+ ret = false;
+ break;
+ }
}
}
}
break;
-#endif
}
}
- return true;
+ return ret;
}
\f
asection **secp;
bfd_vma *valp;
{
- if (sym->st_shndx == SHN_COMMON && sym->st_size <= 8)
+ if (sym->st_shndx == SHN_COMMON && !info->relocateable && sym->st_size <= bfd_get_gp_size (abfd))
{
- /* Common symbols less than or equal to 8 bytes are automatically
+ /* Common symbols less than or equal to -G nn bytes are automatically
put into .sdata. */
- bfd *dynobj = elf_hash_table (info)->dynobj;
- elf_linker_section_t *sdata = elf_linker_section (dynobj, LINKER_SECTION_SDATA);
+ elf_linker_section_t *sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
if (!sdata->bss_section)
- sdata->bss_section = bfd_make_section (dynobj, sdata->bss_name);
+ {
+ /* We don't go through bfd_make_section, because we don't
+ want to attach this common section to DYNOBJ. The linker
+ will move the symbols to the appropriate output section
+ when it defines common symbols. */
+ sdata->bss_section = ((asection *)
+ bfd_zalloc (abfd, sizeof (asection)));
+ if (sdata->bss_section == NULL)
+ return false;
+ sdata->bss_section->name = sdata->bss_name;
+ sdata->bss_section->flags = SEC_IS_COMMON;
+ sdata->bss_section->output_section = sdata->bss_section;
+ sdata->bss_section->symbol =
+ (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
+ sdata->bss_section->symbol_ptr_ptr =
+ (asymbol **) bfd_zalloc (abfd, sizeof (asymbol *));
+ if (sdata->bss_section->symbol == NULL
+ || sdata->bss_section->symbol_ptr_ptr == NULL)
+ return false;
+ sdata->bss_section->symbol->name = sdata->bss_name;
+ sdata->bss_section->symbol->flags = BSF_SECTION_SYM;
+ sdata->bss_section->symbol->section = sdata->bss_section;
+ *sdata->bss_section->symbol_ptr_ptr = sdata->bss_section->symbol;
+ }
+
*secp = sdata->bss_section;
- (*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
}
bfd *dynobj;
#ifdef DEBUG
- fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s\n", h->root.root.string);
+ fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", h->root.root.string);
#endif
dynobj = elf_hash_table (info)->dynobj;
asection *srela;
Elf_Internal_Rela rela;
+#ifdef DEBUG
+ fprintf (stderr, ", plt_offset = %d", h->plt_offset);
+#endif
+
/* This symbol has an entry in the procedure linkage table. Set
it up. */
srela = bfd_get_section_by_name (dynobj, ".rela.plt");
BFD_ASSERT (splt != NULL && srela != NULL);
- /* Fill in the entry in the procedure linkage table. */
-#if 0
- bfd_put_32 (output_bfd,
- PLT_ENTRY_WORD0 + h->plt_offset,
- splt->contents + h->plt_offset);
- bfd_put_32 (output_bfd,
- (PLT_ENTRY_WORD1
- + (((- (h->plt_offset + 4)) >> 2) & 0x3fffff)),
- splt->contents + h->plt_offset + 4);
- bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
- splt->contents + h->plt_offset + 8);
+ /* We don't need to fill in the .plt. The solaris dynamic linker will
+ fill it in. */
/* Fill in the entry in the .rela.plt section. */
rela.r_offset = (splt->output_section->vma
+ splt->output_offset
+ h->plt_offset);
- rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
rela.r_addend = 0;
bfd_elf32_swap_reloca_out (output_bfd, &rela,
((Elf32_External_Rela *) srela->contents
- + h->plt_offset / PLT_ENTRY_SIZE - 4));
-#endif
+ + ((h->plt_offset - PLT_INITIAL_ENTRY_SIZE) / 8)));
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
/* This symbols needs a copy reloc. Set it up. */
+#ifdef DEBUG
+ fprintf (stderr, ", copy");
+#endif
+
BFD_ASSERT (h->dynindx != -1);
s = bfd_get_section_by_name (h->root.u.def.section->owner,
++s->reloc_count;
}
+#ifdef DEBUG
+ fprintf (stderr, "\n");
+#endif
+
/* Mark some specially defined symbols as absolute. */
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
switch (dyn.d_tag)
{
- case DT_PLTGOT: name = ".plt"; size = false; break;
- case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
+ case DT_PLTGOT: name = ".plt"; size = false; break;
+ case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
case DT_JMPREL: name = ".rela.plt"; size = false; break;
- default: name = NULL; size = false; break;
+ default: name = NULL; size = false; break;
}
if (name != NULL)
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
bfd *dynobj = elf_hash_table (info)->dynobj;
- elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT);
- elf_linker_section_t *sdata = elf_linker_section (dynobj, LINKER_SECTION_SDATA);
- elf_linker_section_t *sdata2 = elf_linker_section (dynobj, LINKER_SECTION_SDATA2);
+ elf_linker_section_t *got = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_GOT) : NULL;
+ elf_linker_section_t *sdata = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA) : NULL;
+ elf_linker_section_t *sdata2 = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA2) : NULL;
Elf_Internal_Rela *rel = relocs;
Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
+ asection *sreloc = NULL;
boolean ret = true;
long insn;
Elf_Internal_Sym *sym = (Elf_Internal_Sym *)0;
asection *sec = (asection *)0;
struct elf_link_hash_entry *h = (struct elf_link_hash_entry *)0;
+ const char *sym_name = (const char *)0;
reloc_howto_type *howto;
unsigned long r_symndx;
bfd_vma relocation;
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
+ sym_name = "<local symbol>";
+
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ sym_name = h->root.root.string;
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
+ if ((r_type == R_PPC_PLT32
+ && h->plt_offset != (bfd_vma) -1)
+ || ((r_type == R_PPC_GOT16
+ || r_type == R_PPC_GOT16_LO
+ || r_type == R_PPC_GOT16_HI
+ || r_type == R_PPC_GOT16_HA)
+ && elf_hash_table (info)->dynamic_sections_created
+ && (! info->shared
+ || ! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ || (info->shared
+ && (! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ && (input_section->flags & SEC_ALLOC) != 0
+ && (r_type == R_PPC_ADDR32
+ || r_type == R_PPC_ADDR24
+ || r_type == R_PPC_ADDR16
+ || r_type == R_PPC_ADDR16_LO
+ || r_type == R_PPC_ADDR16_HI
+ || r_type == R_PPC_ADDR16_HA
+ || r_type == R_PPC_ADDR14
+ || r_type == R_PPC_ADDR14_BRTAKEN
+ || r_type == R_PPC_ADDR14_BRNTAKEN
+ || r_type == R_PPC_PLTREL24
+ || r_type == R_PPC_COPY
+ || r_type == R_PPC_GLOB_DAT
+ || r_type == R_PPC_JMP_SLOT
+ || r_type == R_PPC_UADDR32
+ || r_type == R_PPC_UADDR16
+ || r_type == R_PPC_REL32
+ || r_type == R_PPC_SDAREL16
+ || r_type == R_PPC_EMB_NADDR32
+ || r_type == R_PPC_EMB_NADDR16
+ || r_type == R_PPC_EMB_NADDR16_LO
+ || r_type == R_PPC_EMB_NADDR16_HI
+ || r_type == R_PPC_EMB_NADDR16_HA
+ || r_type == R_PPC_EMB_SDAI16
+ || r_type == R_PPC_EMB_SDA2I16
+ || r_type == R_PPC_EMB_SDA2REL
+ || r_type == R_PPC_EMB_SDA21
+ || r_type == R_PPC_EMB_MRKREF
+ || r_type == R_PPC_EMB_BIT_FLD
+ || r_type == R_PPC_EMB_RELSDA
+ || ((r_type == R_PPC_REL24
+ || r_type == R_PPC_REL14
+ || r_type == R_PPC_REL14_BRTAKEN
+ || r_type == R_PPC_REL14_BRNTAKEN
+ || r_type == R_PPC_RELATIVE)
+ && strcmp (h->root.root.string,
+ "_GLOBAL_OFFSET_TABLE_") != 0))))
+ {
+ /* In these cases, we don't need the relocation
+ value. We check specially because in some
+ obscure cases sec->output_section will be NULL. */
+ relocation = 0;
+ }
+ else
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
switch ((int)r_type)
{
default:
- (*_bfd_error_handler) ("%s: unknown relocation type %d",
+ (*_bfd_error_handler) ("%s: unknown relocation type %d for symbol %s",
bfd_get_filename (input_bfd),
- (int)r_type);
+ (int)r_type, sym_name);
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
/* relocations that need no special processing */
+ case (int)R_PPC_LOCAL24PC:
+ break;
+
+ case (int)R_PPC_REL24:
+ case (int)R_PPC_REL14:
+ if (h != NULL
+ && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ break;
+ /* fall through */
+
+ /* Relocations that need to be propigated if this is a shared object */
case (int)R_PPC_NONE:
case (int)R_PPC_ADDR32:
case (int)R_PPC_ADDR24:
case (int)R_PPC_ADDR16_LO:
case (int)R_PPC_ADDR16_HI:
case (int)R_PPC_ADDR14:
- case (int)R_PPC_REL24:
- case (int)R_PPC_REL14:
case (int)R_PPC_UADDR32:
case (int)R_PPC_UADDR16:
case (int)R_PPC_REL32:
+ case (int)R_PPC_PLTREL24:
+ if (info->shared
+ && (input_section->flags & SEC_ALLOC) != 0)
+ {
+ Elf_Internal_Rela outrel;
+
+#ifdef DEBUG
+ fprintf (stderr, "ppc_elf_relocate_section need to create relocation for %s\n",
+ (h && h->root.root.string) ? h->root.root.string : "<unknown>");
+#endif
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at run
+ time. */
+
+ if (sreloc == NULL)
+ {
+ const char *name;
+
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd,
+ elf_elfheader (input_bfd)->e_shstrndx,
+ elf_section_data (input_section)->rel_hdr.sh_name));
+ if (name == NULL)
+ return false;
+
+ BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+ && strcmp (bfd_get_section_name (input_bfd,
+ input_section),
+ name + 5) == 0);
+
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ BFD_ASSERT (sreloc != NULL);
+ }
+
+ outrel.r_offset = (rel->r_offset
+ + input_section->output_section->vma
+ + input_section->output_offset);
+ if (h != NULL
+ && (! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ {
+ BFD_ASSERT (h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = rel->r_addend;
+ }
+ else
+ {
+ if (r_type == R_PPC_ADDR32)
+ {
+ outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+ else
+ {
+ long indx;
+
+ if (h == NULL)
+ sec = local_sections[r_symndx];
+ else
+ {
+ BFD_ASSERT (h->root.type == bfd_link_hash_defined
+ || (h->root.type
+ == bfd_link_hash_defweak));
+ sec = h->root.u.def.section;
+ }
+ if (sec != NULL && bfd_is_abs_section (sec))
+ indx = 0;
+ else if (sec == NULL || sec->owner == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ else
+ {
+ asection *osec;
+
+ osec = sec->output_section;
+ indx = elf_section_data (osec)->dynindx;
+ if (indx == 0)
+ abort ();
+ }
+
+ outrel.r_info = ELF32_R_INFO (indx, r_type);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+ }
+
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ (((Elf32_External_Rela *)
+ sreloc->contents)
+ + sreloc->reloc_count));
+ ++sreloc->reloc_count;
+
+ /* This reloc will be computed at runtime, so there's no
+ need to do anything now. */
+ continue;
+ }
break;
/* branch taken prediction relocations */
|| strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
|| strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0)
- addend -= sec->output_section->vma + 0x8000;
+ addend -= sec->output_section->vma + sec->output_offset + 0x8000;
break;
/* arithmetic adjust relocations */
if (strcmp (bfd_get_section_name (abfd, sec), ".sdata") != 0
&& strcmp (bfd_get_section_name (abfd, sec), ".sbss") != 0)
{
- (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
+ (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
+ sym_name,
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
continue;
}
addend -= (sdata->sym_hash->root.u.def.value
- + sdata->sym_hash->root.u.def.section->output_section->vma);
+ + sdata->sym_hash->root.u.def.section->output_section->vma
+ + sdata->sym_hash->root.u.def.section->output_offset);
break;
if (strcmp (bfd_get_section_name (abfd, sec), ".sdata2") != 0
&& strcmp (bfd_get_section_name (abfd, sec), ".sbss2") != 0)
{
- (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
+ (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
+ sym_name,
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
continue;
}
addend -= (sdata2->sym_hash->root.u.def.value
- + sdata2->sym_hash->root.u.def.section->output_section->vma);
+ + sdata2->sym_hash->root.u.def.section->output_section->vma
+ + sdata2->sym_hash->root.u.def.section->output_offset);
break;
{
reg = 13;
addend -= (sdata->sym_hash->root.u.def.value
- + sdata->sym_hash->root.u.def.section->output_section->vma);
+ + sdata->sym_hash->root.u.def.section->output_section->vma
+ + sdata->sym_hash->root.u.def.section->output_offset);
}
else if (strcmp (name, ".sdata2") == 0 || strcmp (name, ".sbss2") == 0)
{
reg = 2;
addend -= (sdata2->sym_hash->root.u.def.value
- + sdata2->sym_hash->root.u.def.section->output_section->vma);
+ + sdata2->sym_hash->root.u.def.section->output_section->vma
+ + sdata2->sym_hash->root.u.def.section->output_offset);
}
else if (strcmp (name, ".PPC.EMB.sdata0") == 0 || strcmp (name, ".PPC.EMB.sbss0") == 0)
else
{
- (*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
+ (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
+ sym_name,
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
if (r_type == R_PPC_EMB_SDA21)
{ /* fill in register field */
- insn = bfd_get_32 (output_bfd, contents + offset - 2);
+ insn = bfd_get_32 (output_bfd, contents + offset);
insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
- bfd_put_32 (output_bfd, insn, contents + offset - 2);
+ bfd_put_32 (output_bfd, insn, contents + offset);
}
}
break;
- case (int)R_PPC_PLTREL24:
- case (int)R_PPC_COPY:
- case (int)R_PPC_GLOB_DAT:
- case (int)R_PPC_JMP_SLOT:
- case (int)R_PPC_RELATIVE:
- case (int)R_PPC_LOCAL24PC:
- case (int)R_PPC_PLT32:
- case (int)R_PPC_PLTREL32:
- case (int)R_PPC_PLT16_LO:
- case (int)R_PPC_PLT16_HI:
- case (int)R_PPC_PLT16_HA:
+ /* Relocate against the beginning of the section */
case (int)R_PPC_SECTOFF:
case (int)R_PPC_SECTOFF_LO:
case (int)R_PPC_SECTOFF_HI:
+ BFD_ASSERT (sec != (asection *)0);
+ addend -= sec->output_section->vma;
+ break;
+
case (int)R_PPC_SECTOFF_HA:
+ BFD_ASSERT (sec != (asection *)0);
+ addend -= sec->output_section->vma;
+ addend += ((relocation + addend) & 0x8000) << 1;
+ break;
+
+ /* Negative relocations */
case (int)R_PPC_EMB_NADDR32:
case (int)R_PPC_EMB_NADDR16:
case (int)R_PPC_EMB_NADDR16_LO:
case (int)R_PPC_EMB_NADDR16_HI:
+ addend -= 2*relocation;
+ break;
+
case (int)R_PPC_EMB_NADDR16_HA:
+ addend -= 2*relocation;
+ addend += ((relocation + addend) & 0x8000) << 1;
+ break;
+
+ /* NOP relocation that prevents garbage collecting linkers from omitting a
+ reference. */
case (int)R_PPC_EMB_MRKREF:
+ continue;
+
+ case (int)R_PPC_COPY:
+ case (int)R_PPC_GLOB_DAT:
+ case (int)R_PPC_JMP_SLOT:
+ case (int)R_PPC_RELATIVE:
+ case (int)R_PPC_PLT32:
+ case (int)R_PPC_PLTREL32:
+ case (int)R_PPC_PLT16_LO:
+ case (int)R_PPC_PLT16_HI:
+ case (int)R_PPC_PLT16_HA:
case (int)R_PPC_EMB_RELSEC16:
case (int)R_PPC_EMB_RELST_LO:
case (int)R_PPC_EMB_RELST_HI:
case (int)R_PPC_EMB_RELST_HA:
case (int)R_PPC_EMB_BIT_FLD:
- unsupported:
- (*_bfd_error_handler) ("%s: Relocation %s is not yet supported.",
+ (*_bfd_error_handler) ("%s: Relocation %s is not yet supported for symbol %s.",
bfd_get_filename (input_bfd),
- ppc_elf_howto_table[ (int)r_type ]->name);
+ ppc_elf_howto_table[ (int)r_type ]->name,
+ sym_name);
bfd_set_error (bfd_error_invalid_operation);
ret = false;
#ifdef DEBUG
- fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
+ fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n",
howto->name,
(int)r_type,
+ sym_name,
r_symndx,
(long)offset,
(long)addend);
#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
#define elf_backend_fake_sections ppc_elf_fake_sections
+#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
+#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
#include "elf32-target.h"
projects / binutils.git / blobdiff