/* Motorola 68k series support for 32-bit ELF
Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005 Free Software Foundation, Inc.
+ 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/m68k.h"
+#include "opcode/m68k.h"
static reloc_howto_type *reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
#define CFV4E_PLT_ENTRY_SIZE 24
-#define CFV4E_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_CFV4E)
+#define CFV4E_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_M68K_CFV4E)
static const bfd_byte elf_cfv4e_plt0_entry[CFV4E_PLT_ENTRY_SIZE] =
{
0, 0, 0, 0 /* Replaced with offset to start of .plt. */
};
-#define CPU32_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_CPU32)
+#define CPU32_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_M68K_CPU32)
#define PLT_CPU32_ENTRY_SIZE 24
/* Procedure linkage table entries for the cpu32 */
if (ret == (struct elf_m68k_link_hash_table *) NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
- elf_m68k_link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ elf_m68k_link_hash_newfunc,
+ sizeof (struct elf_m68k_link_hash_entry)))
{
free (ret);
return NULL;
return &ret->root.root;
}
+/* Set the right machine number. */
+
+static bfd_boolean
+elf32_m68k_object_p (bfd *abfd)
+{
+ unsigned int mach = 0;
+ unsigned features = 0;
+ flagword eflags = elf_elfheader (abfd)->e_flags;
+
+ if (eflags & EF_M68K_M68000)
+ features |= m68000;
+ else if (eflags & EF_M68K_CPU32)
+ features |= cpu32;
+ else if (eflags & EF_M68K_ISA_MASK)
+ {
+ switch (eflags & EF_M68K_ISA_MASK)
+ {
+ case EF_M68K_ISA_A_NODIV:
+ features |= mcfisa_a;
+ break;
+ case EF_M68K_ISA_A:
+ features |= mcfisa_a|mcfhwdiv;
+ break;
+ case EF_M68K_ISA_A_PLUS:
+ features |= mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp;
+ break;
+ case EF_M68K_ISA_B_NOUSP:
+ features |= mcfisa_a|mcfisa_b|mcfhwdiv;
+ break;
+ case EF_M68K_ISA_B:
+ features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
+ break;
+ }
+ switch (eflags & EF_M68K_MAC_MASK)
+ {
+ case EF_M68K_MAC:
+ features |= mcfmac;
+ break;
+ case EF_M68K_EMAC:
+ features |= mcfemac;
+ break;
+ }
+ if (eflags & EF_M68K_FLOAT)
+ features |= cfloat;
+ }
+
+ mach = bfd_m68k_features_to_mach (features);
+ bfd_default_set_arch_mach (abfd, bfd_arch_m68k, mach);
+
+ return TRUE;
+}
+
/* Keep m68k-specific flags in the ELF header. */
static bfd_boolean
elf32_m68k_set_private_flags (abfd, flags)
{
flagword out_flags;
flagword in_flags;
-
+ unsigned in_mach, out_mach;
+
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return TRUE;
-
+ return FALSE;
+
+ in_mach = bfd_get_mach (ibfd);
+ out_mach = bfd_get_mach (obfd);
+ if (!out_mach || !in_mach)
+ /* One is unknown, copy the input machine. */
+ out_mach = in_mach;
+ else if (in_mach != out_mach)
+ {
+ if (in_mach <= bfd_mach_m68060 && out_mach <= bfd_mach_m68060)
+ {
+ /* Merge m68k machine. */
+ if (in_mach > out_mach)
+ out_mach = in_mach;
+ }
+ else if (in_mach >= bfd_mach_mcf_isa_a_nodiv
+ && out_mach >= bfd_mach_mcf_isa_a_nodiv)
+ /* Merge cf machine. */
+ out_mach = bfd_m68k_features_to_mach
+ (bfd_m68k_mach_to_features (in_mach)
+ | bfd_m68k_mach_to_features (out_mach));
+ else
+ /* They are incompatible. */
+ return FALSE;
+ }
+ bfd_set_arch_mach (obfd, bfd_arch_m68k, out_mach);
+
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (!elf_flags_init (obfd))
{
elf_flags_init (obfd) = TRUE;
- elf_elfheader (obfd)->e_flags = in_flags;
+ out_flags = in_flags;
+ }
+ else
+ {
+ flagword isa_in = in_flags & EF_M68K_ISA_MASK;
+ flagword isa_out = out_flags & EF_M68K_ISA_MASK;
+
+
+ /* Copy legacy flags. */
+ out_flags |= in_flags & (EF_M68K_CPU32 | EF_M68K_M68000 | EF_M68K_CFV4E);
+
+ if ((isa_in | isa_out)
+ && ((in_flags | out_flags) & (EF_M68K_CPU32 | EF_M68K_M68000)))
+ /* Mixing m68k and cf is not allowed */
+ return FALSE;
+
+ if (isa_in)
+ {
+ if (isa_out)
+ {
+ if (isa_out == EF_M68K_ISA_A_PLUS
+ && (isa_in == EF_M68K_ISA_B_NOUSP
+ || isa_in == EF_M68K_ISA_B))
+ /* Cannot mix A+ and B */
+ return FALSE;
+ if (isa_in == EF_M68K_ISA_A_PLUS
+ && (isa_out == EF_M68K_ISA_B_NOUSP
+ || isa_out == EF_M68K_ISA_B))
+ /* Cannot mix B and A+ */
+ return FALSE;
+
+ if (isa_in > isa_out)
+ out_flags ^= isa_in ^ isa_out;
+
+ out_flags |= in_flags & EF_M68K_FLOAT;
+ if (in_flags & EF_M68K_MAC_MASK)
+ {
+ if (!(out_flags & EF_M68K_MAC_MASK))
+ out_flags |= in_flags & EF_M68K_MAC_MASK;
+ else if ((out_flags & EF_M68K_MAC_MASK)
+ != (in_flags & EF_M68K_MAC_MASK))
+ /* Cannot mix MACs */
+ return FALSE;
+ }
+ }
+ else
+ {
+ /* Copy the coldfire bits. */
+ out_flags &= ~EF_M68K_CF_MASK;
+ out_flags |= in_flags & EF_M68K_CF_MASK;
+ }
+ }
}
+ elf_elfheader (obfd)->e_flags = out_flags;
return TRUE;
}
PTR ptr;
{
FILE *file = (FILE *) ptr;
+ flagword eflags = elf_elfheader (abfd)->e_flags;
BFD_ASSERT (abfd != NULL && ptr != NULL);
/* xgettext:c-format */
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
- if (elf_elfheader (abfd)->e_flags & EF_CPU32)
- fprintf (file, _(" [cpu32]"));
+ if (eflags & EF_M68K_CPU32)
+ fprintf (file, " [cpu32]");
- if (elf_elfheader (abfd)->e_flags & EF_M68000)
- fprintf (file, _(" [m68000]"));
+ if (eflags & EF_M68K_M68000)
+ fprintf (file, " [m68000]");
+ if (eflags & EF_M68K_CFV4E)
+ fprintf (file, " [cfv4e]");
+
+ if (eflags & EF_M68K_ISA_MASK)
+ {
+ char const *isa = _("unknown");
+ char const *mac = _("unknown");
+ char const *additional = "";
+
+ switch (eflags & EF_M68K_ISA_MASK)
+ {
+ case EF_M68K_ISA_A_NODIV:
+ isa = "A";
+ additional = " [nodiv]";
+ break;
+ case EF_M68K_ISA_A:
+ isa = "A";
+ break;
+ case EF_M68K_ISA_A_PLUS:
+ isa = "A+";
+ break;
+ case EF_M68K_ISA_B_NOUSP:
+ isa = "B";
+ additional = " [nousp]";
+ break;
+ case EF_M68K_ISA_B:
+ isa = "B";
+ break;
+ }
+ fprintf (file, " [isa %s]%s", isa, additional);
+ if (eflags & EF_M68K_FLOAT)
+ fprintf (file, " [float]");
+ switch (eflags & EF_M68K_MAC_MASK)
+ {
+ case 0:
+ mac = NULL;
+ break;
+ case EF_M68K_MAC:
+ mac = "mac";
+ break;
+ case EF_M68K_EMAC:
+ mac = "emac";
+ break;
+ }
+ if (mac)
+ fprintf (file, " [%s]", mac);
+ }
+
fputc ('\n', file);
return TRUE;
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ || h == elf_hash_table (info)->hgot)
sym->st_shndx = SHN_ABS;
return TRUE;
elf32_m68k_print_private_bfd_data
#define elf_backend_reloc_type_class elf32_m68k_reloc_type_class
#define elf_backend_plt_sym_val elf_m68k_plt_sym_val
+#define elf_backend_object_p elf32_m68k_object_p
#define elf_backend_can_gc_sections 1
#define elf_backend_can_refcount 1
projects / deliverable / binutils-gdb.git / blobdiff