/* tc-arm.c -- Assemble for the ARM
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005
Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
/* Legacy a.out format. */
# define FPU_DEFAULT FPU_ARCH_FPA /* Soft-float, but FPA order. */
# endif
+# elif defined (TE_VXWORKS)
+# define FPU_DEFAULT FPU_ARCH_VFP /* Soft-float, VFP order. */
# else
/* For backwards compatibility, default to FPA. */
# define FPU_DEFAULT FPU_ARCH_FPA
return;
}
-#if 0 /* The first edition of the ARM architecture manual stated that
- writing anything other than the flags with an immediate operation
- had UNPREDICTABLE effects. This constraint was removed in the
- second edition of the specification. */
- if ((cpu_variant & ARM_EXT_V5) != ARM_EXT_V5
- && inst.instruction & ((PSR_c | PSR_x | PSR_s) << PSR_SHIFT))
- {
- inst.error = _("immediate value cannot be used to set this field");
- return;
- }
-#endif
-
inst.instruction |= INST_IMMEDIATE;
if (inst.reloc.exp.X_add_symbol)
end_of_line (str);
}
+#ifdef OBJ_ELF
static bfd_reloc_code_real_type
arm_parse_reloc (void)
{
return reloc_map[i].reloc;
}
+#endif
/* ARM V5 branch-link-exchange (argument parse) for BLX(1) only.
Expects inst.instruction is set for BLX(1).
return;
}
- if (inst.reloc.type != BFD_RELOC_NONE)
+ if (inst.reloc.type != BFD_RELOC_UNUSED)
{
/* This really doesn't seem worth it. */
- inst.reloc.type = BFD_RELOC_NONE;
+ inst.reloc.type = BFD_RELOC_UNUSED;
inst.error = _("expression too complex");
return;
}
return;
}
- if (inst.reloc.type != BFD_RELOC_NONE)
+ if (inst.reloc.type != BFD_RELOC_UNUSED)
{
/* This really doesn't seem worth it. */
- inst.reloc.type = BFD_RELOC_NONE;
+ inst.reloc.type = BFD_RELOC_UNUSED;
inst.error = _("expression too complex");
return;
}
}
}
-#if 0 /* Suppressed - for now. */
-#if defined OBJ_ELF || defined OBJ_COFF
-
-#ifdef OBJ_ELF
-#define arm_Note Elf_External_Note
-#else
-typedef struct
-{
- unsigned char namesz[4]; /* Size of entry's owner string. */
- unsigned char descsz[4]; /* Size of the note descriptor. */
- unsigned char type[4]; /* Interpretation of the descriptor. */
- char name[1]; /* Start of the name+desc data. */
-} arm_Note;
-#endif
-
-/* The description is kept to a fix sized in order to make updating
- it and merging it easier. */
-#define ARM_NOTE_DESCRIPTION_LENGTH 8
-
-static void
-arm_add_note (const char * name,
- const char * description,
- unsigned int type)
-{
- arm_Note note ATTRIBUTE_UNUSED;
- char * p;
- unsigned int name_len;
-
- name_len = (strlen (name) + 1 + 3) & ~3;
-
- p = frag_more (sizeof (note.namesz));
- md_number_to_chars (p, (valueT) name_len, sizeof (note.namesz));
-
- p = frag_more (sizeof (note.descsz));
- md_number_to_chars (p, (valueT) ARM_NOTE_DESCRIPTION_LENGTH, sizeof (note.descsz));
-
- p = frag_more (sizeof (note.type));
- md_number_to_chars (p, (valueT) type, sizeof (note.type));
-
- p = frag_more (name_len);
- strcpy (p, name);
-
- p = frag_more (ARM_NOTE_DESCRIPTION_LENGTH);
- strncpy (p, description, ARM_NOTE_DESCRIPTION_LENGTH);
- frag_align (2, 0, 0);
-}
-#endif
-#endif
-
\f
static const struct thumb_opcode tinsns[] =
{
}
else if (mfpu_opt == -1)
{
-#if !(defined (TE_LINUX) || defined (TE_NetBSD))
+#if !(defined (TE_LINUX) || defined (TE_NetBSD) || defined (TE_VXWORKS))
/* Some environments specify a default FPU. If they don't, infer it
from the processor. */
if (mcpu_fpu_opt != -1)
cpu_variant = mcpu_cpu_opt | mfpu_opt;
+#if defined OBJ_COFF || defined OBJ_ELF
{
unsigned int flags = 0;
{
case EF_ARM_EABI_UNKNOWN:
#endif
-#if defined OBJ_COFF || defined OBJ_ELF
/* Set the flags in the private structure. */
if (uses_apcs_26) flags |= F_APCS26;
if (support_interwork) flags |= F_INTERWORK;
/* Using VFP conventions (even if soft-float). */
if (cpu_variant & FPU_VFP_EXT_NONE)
flags |= F_VFP_FLOAT;
-#endif
+
#if defined OBJ_ELF
if (cpu_variant & FPU_ARCH_MAVERICK)
flags |= EF_ARM_MAVERICK_FLOAT;
abort ();
}
#endif
-#if defined OBJ_COFF || defined OBJ_ELF
bfd_set_private_flags (stdoutput, flags);
/* We have run out flags in the COFF header to encode the
bfd_set_section_contents (stdoutput, sec, NULL, 0, 0);
}
}
-#endif
}
+#endif
/* Record the CPU type as well. */
switch (cpu_variant & ARM_CPU_MASK)
else if (cpu_variant & ARM_EXT_V3M)
mach = bfd_mach_arm_3M;
-#if 0 /* Suppressed - for now. */
-#if defined (OBJ_ELF) || defined (OBJ_COFF)
-
- /* Create a .note section to fully identify this arm binary. */
-
-#define NOTE_ARCH_STRING "arch: "
-
-#if defined OBJ_COFF && ! defined NT_VERSION
-#define NT_VERSION 1
-#define NT_ARCH 2
-#endif
-
- {
- segT current_seg = now_seg;
- subsegT current_subseg = now_subseg;
- asection * arm_arch;
- const char * arch_string;
-
- arm_arch = bfd_make_section_old_way (stdoutput, ARM_NOTE_SECTION);
-
-#ifdef OBJ_COFF
- bfd_set_section_flags (stdoutput, arm_arch,
- SEC_DATA | SEC_ALLOC | SEC_LOAD | SEC_LINK_ONCE \
- | SEC_HAS_CONTENTS);
-#else
- bfd_set_section_flags (stdoutput, arm_arch,
- SEC_READONLY | SEC_HAS_CONTENTS);
-#endif
- arm_arch->output_section = arm_arch;
- subseg_set (arm_arch, 0);
-
- switch (mach)
- {
- default:
- case bfd_mach_arm_unknown: arch_string = "unknown"; break;
- case bfd_mach_arm_2: arch_string = "armv2"; break;
- case bfd_mach_arm_2a: arch_string = "armv2a"; break;
- case bfd_mach_arm_3: arch_string = "armv3"; break;
- case bfd_mach_arm_3M: arch_string = "armv3M"; break;
- case bfd_mach_arm_4: arch_string = "armv4"; break;
- case bfd_mach_arm_4T: arch_string = "armv4t"; break;
- case bfd_mach_arm_5: arch_string = "armv5"; break;
- case bfd_mach_arm_5T: arch_string = "armv5t"; break;
- case bfd_mach_arm_5TE: arch_string = "armv5te"; break;
- case bfd_mach_arm_XScale: arch_string = "XScale"; break;
- case bfd_mach_arm_ep9312: arch_string = "ep9312"; break;
- case bfd_mach_arm_iWMMXt: arch_string = "iWMMXt"; break;
- }
-
- arm_add_note (NOTE_ARCH_STRING, arch_string, NT_ARCH);
-
- subseg_set (current_seg, current_subseg);
- }
-#endif
-#endif /* Suppressed code. */
-
bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach);
}
char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
arm_fix_data * arm_data = (arm_fix_data *) fixP->tc_fix_data;
- assert (fixP->fx_r_type < BFD_RELOC_UNUSED);
+ assert (fixP->fx_r_type <= BFD_RELOC_UNUSED);
/* Note whether this will delete the relocation. */
-#if 0
- /* Patch from REarnshaw to JDavis (disabled for the moment, since it
- doesn't work fully.) */
- if ((fixP->fx_addsy == 0 || symbol_constant_p (fixP->fx_addsy))
- && !fixP->fx_pcrel)
-#else
if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
-#endif
fixP->fx_done = 1;
/* If this symbol is in a different section then we need to leave it for
switch (fixP->fx_r_type)
{
+ case BFD_RELOC_NONE:
+ /* This will need to go in the object file. */
+ fixP->fx_done = 0;
+ break;
+
case BFD_RELOC_ARM_IMMEDIATE:
/* We claim that this fixup has been processed here,
even if in fact we generate an error because we do
as_bad_where (fixP->fx_file, fixP->fx_line,
_("out of range branch"));
- newval = (value & 0x00ffffff) | (newval & 0xff000000);
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+ /* Must unshift the value before storing it in the addend. */
+ value <<= 2;
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xff000000;
+ }
+ else
+ newval = (value & 0x00ffffff) | (newval & 0xff000000);
md_number_to_chars (buf, newval, INSN_SIZE);
break;
hbit = (value >> 1) & 1;
value = (value >> 2) & 0x00ffffff;
value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
- newval = value | (newval & 0xfe000000) | (hbit << 24);
+
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+ /* Must sign-extend and unshift the value before storing
+ it in the addend. */
+ value = SEXT24 (value);
+ value = (value << 2) | hbit;
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xfe000000;
+ }
+ else
+ newval = value | (newval & 0xfe000000) | (hbit << 24);
md_number_to_chars (buf, newval, INSN_SIZE);
}
break;
if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("branch out of range"));
- newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xff00;
+ }
+ else
+ newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
}
md_number_to_chars (buf, newval, THUMB_SIZE);
break;
if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("branch out of range"));
- newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xf800;
+ }
+ else
+ newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
}
md_number_to_chars (buf, newval, THUMB_SIZE);
break;
as_bad_where (fixP->fx_file, fixP->fx_line,
_("branch with link out of range"));
- newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
- newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1);
if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
/* For a BLX instruction, make sure that the relocation is rounded up
to a word boundary. This follows the semantics of the instruction
which specifies that bit 1 of the target address will come from bit
1 of the base address. */
- newval2 = (newval2 + 1) & ~ 1;
+ value = (value + 1) & ~ 1;
+
+ if (seg->use_rela_p && !fixP->fx_done)
+ {
+#ifdef OBJ_ELF
+ fixP->fx_offset = value;
+#endif
+ fixP->fx_addnumber = value;
+ newval = newval & 0xf800;
+ newval2 = newval2 & 0xf800;
+ }
+ else
+ {
+ newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
+ newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1);
+ }
md_number_to_chars (buf, newval, THUMB_SIZE);
md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
}
break;
case BFD_RELOC_8:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 1);
#ifdef OBJ_ELF
break;
case BFD_RELOC_16:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 2);
#ifdef OBJ_ELF
case BFD_RELOC_ARM_GOT32:
case BFD_RELOC_ARM_GOTOFF:
case BFD_RELOC_ARM_TARGET2:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
md_number_to_chars (buf, 0, 4);
break;
#endif
case BFD_RELOC_ARM_ROSEGREL32:
case BFD_RELOC_ARM_SBREL32:
case BFD_RELOC_32_PCREL:
+ if (seg->use_rela_p && !fixP->fx_done)
+ break;
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 4);
#ifdef OBJ_ELF
fixP->fx_done = 0;
return;
- case BFD_RELOC_NONE:
+ case BFD_RELOC_UNUSED:
default:
as_bad_where (fixP->fx_file, fixP->fx_line,
_("bad relocation fixup type (%d)"), fixP->fx_r_type);
break;
}
+ case BFD_RELOC_NONE:
case BFD_RELOC_ARM_PCREL_BRANCH:
case BFD_RELOC_ARM_PCREL_BLX:
case BFD_RELOC_RVA:
switch (fixp->fx_r_type)
{
+ case BFD_RELOC_NONE: type = "NONE"; break;
case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
case BFD_RELOC_ARM_SMI: type = "SMI"; break;
else
md_number_to_chars (to, inst.instruction, inst.size);
- if (inst.reloc.type != BFD_RELOC_NONE)
+ if (inst.reloc.type != BFD_RELOC_UNUSED)
fix_new_arm (frag_now, to - frag_now->fr_literal,
inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
inst.reloc.type);
char *p;
char *start;
- /* Align the instruction.
- This may not be the right thing to do but ... */
-#if 0
- arm_align (2, 0);
-#endif
-
/* Align the previous label if needed. */
if (last_label_seen != NULL)
{
}
memset (&inst, '\0', sizeof (inst));
- inst.reloc.type = BFD_RELOC_NONE;
+ inst.reloc.type = BFD_RELOC_UNUSED;
skip_whitespace (str);
{"arm1020", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
{"arm1020t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1},
{"arm1020e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm1026ejs", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
- {"arm1026ej-s", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2},
+ {"arm1026ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
+ {"arm1026ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2},
{"arm1136js", ARM_ARCH_V6, FPU_NONE},
{"arm1136j-s", ARM_ARCH_V6, FPU_NONE},
{"arm1136jfs", ARM_ARCH_V6, FPU_ARCH_VFP_V2},
return (target_big_endian
? "elf32-bigarm-symbian"
: "elf32-littlearm-symbian");
+#elif defined (TE_VXWORKS)
+ return (target_big_endian
+ ? "elf32-bigarm-vxworks"
+ : "elf32-littlearm-vxworks");
#else
if (target_big_endian)
return "elf32-bigarm";
/* Custom personality routine. */
fix_new (frag_now, where, 4, unwind.personality_routine, 0, 1,
BFD_RELOC_ARM_PREL31);
+
+ /* Indicate dependency to linker. */
+ {
+ char *name = "__aeabi_unwind_cpp_pr0";
+ symbolS *pr = symbol_find_or_make (name);
+ fix_new (frag_now, where, 4, pr, 0, 1, BFD_RELOC_NONE);
+ }
+
where += 4;
ptr += 4;
break;
/* ABI defined personality routines. */
- /* TODO: Emit R_ARM_NONE to the personality routine. */
case 0:
/* Three opcodes bytes are packed into the first word. */
data = 0x80;
n = 3;
- break;
+ goto emit_reloc;
case 1:
case 2:
/* The size and first two opcode bytes go in the first word. */
data = ((0x80 + unwind.personality_index) << 8) | size;
n = 2;
+ goto emit_reloc;
+
+ emit_reloc:
+ {
+ /* Indicate dependency to linker. */
+ char *name[] = { "__aeabi_unwind_cpp_pr0",
+ "__aeabi_unwind_cpp_pr1",
+ "__aeabi_unwind_cpp_pr2" };
+ symbolS *pr = symbol_find_or_make (name[unwind.personality_index]);
+ fix_new (frag_now, where, 4, pr, 0, 1, BFD_RELOC_NONE);
+ }
break;
default:
/* Self relative offset of the function start. */
fix_new (frag_now, where, 4, unwind.proc_start, 0, 1,
- BFD_RELOC_32);
+ BFD_RELOC_ARM_PREL31);
if (val)
/* Inline exception table entry. */
projects / deliverable / binutils-gdb.git / blobdiff