/* tc-cris.c -- Assembler code for the CRIS CPU core.
- Copyright 2000, 2001, 2002, 2003, 2004, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
Contributed by Axis Communications AB, Lund, Sweden.
Originally written for GAS 1.38.1 by Mikael Asker.
static void gen_cond_branch_32 (char *, char *, fragS *, symbolS *, symbolS *,
long int);
static void cris_number_to_imm (char *, long, int, fixS *, segT);
-static void cris_create_short_jump (char *, addressT, addressT, fragS *,
- symbolS *);
static void s_syntax (int);
static void s_cris_file (int);
static void s_cris_loc (int);
static void s_cris_arch (int);
+static void s_cris_dtpoff (int);
/* Get ":GOT", ":GOTOFF", ":PLT" etc. suffixes. */
static void cris_get_reloc_suffix (char **, bfd_reloc_code_real_type *,
const pseudo_typeS md_pseudo_table[] =
{
{"dword", cons, 4},
+ {"dtpoffd", s_cris_dtpoff, 4},
{"syntax", s_syntax, 0},
{"file", s_cris_file, 0},
{"loc", s_cris_loc, 0},
/* Used to check integrity of the relaxation.
One of 2 = long, 1 = word, or 0 = byte. */
- int length_code;
+ int length_code ATTRIBUTE_UNUSED;
/* Size in bytes of variable-sized part of frag. */
int var_part_size = 0;
}
/* Generate a short jump around a secondary jump table.
- Used by md_create_long_jump.
+ Also called from md_create_long_jump, when sufficient. */
- This used to be md_create_short_jump, but is now called from
- md_create_long_jump instead, when sufficient, since the sizes of the
- jumps are the same for pre-v32. */
-
-static void
-cris_create_short_jump (char *storep, addressT from_addr, addressT to_addr,
+void
+md_create_short_jump (char *storep, addressT from_addr, addressT to_addr,
fragS *fragP ATTRIBUTE_UNUSED,
symbolS *to_symbol ATTRIBUTE_UNUSED)
{
/* See md_create_long_jump about the comment on the "+ 2". */
long int max_minimal_minus_distance;
long int max_minimal_plus_distance;
+ long int max_minus_distance;
+ long int max_plus_distance;
int nop_opcode;
if (cris_arch == arch_crisv32)
{
max_minimal_minus_distance = BRANCH_BB_V32 + 2;
max_minimal_plus_distance = BRANCH_BF_V32 + 2;
+ max_minus_distance = BRANCH_WB_V32 + 2;
+ max_plus_distance = BRANCH_WF_V32 + 2;
nop_opcode = NOP_OPCODE_V32;
}
+ else if (cris_arch == arch_cris_common_v10_v32)
+ /* Bail out for compatibility mode. (It seems it can be implemented,
+ perhaps with a 10-byte sequence: "move.d NNNN,$pc/$acr", "jump
+ $acr", "nop"; but doesn't seem worth it at the moment.) */
+ as_fatal (_("Out-of-range .word offset handling\
+ is not implemented for .arch common_v10_v32"));
else
{
max_minimal_minus_distance = BRANCH_BB + 2;
max_minimal_plus_distance = BRANCH_BF + 2;
+ max_minus_distance = BRANCH_WB + 2;
+ max_plus_distance = BRANCH_WF + 2;
nop_opcode = NOP_OPCODE;
}
a nop to keep disassembly sane. */
md_number_to_chars (storep + 4, nop_opcode, 2);
}
- else
+ else if (max_minus_distance <= distance
+ && distance <= max_plus_distance)
{
/* Make it a "long" short jump: "BA (PC+)". */
md_number_to_chars (storep, BA_PC_INCR_OPCODE, 2);
/* A nop for the delay slot. */
md_number_to_chars (storep + 4, nop_opcode, 2);
}
+ else
+ as_bad_where (fragP->fr_file, fragP->fr_line,
+ _(".word case-table handling failed: table too large"));
}
/* Generate a long jump in a secondary jump table.
long int max_short_plus_distance
= cris_arch != arch_crisv32 ? BRANCH_WF + 3 : BRANCH_WF_V32 + 3;
- /* Bail out for compatibility mode. (It seems it can be implemented,
- perhaps with a 10-byte sequence: "move.d NNNN,$pc/$acr", "jump
- $acr", "nop"; but doesn't seem worth it at the moment.) */
- if (cris_arch == arch_cris_common_v10_v32)
- as_fatal (_("Out-of-range .word offset handling\
- is not implemented for .arch common_v10_v32"));
-
distance = to_addr - from_addr;
if (max_short_minus_distance <= distance
&& distance <= max_short_plus_distance)
- /* Then make it a "short" long jump. */
- cris_create_short_jump (storep, from_addr, to_addr, fragP,
+ {
+ /* Then make it a "short" long jump. */
+ md_create_short_jump (storep, from_addr, to_addr, fragP,
to_symbol);
+ if (cris_arch == arch_crisv32)
+ md_number_to_chars (storep + 6, NOP_OPCODE_V32, 2);
+ else
+ md_number_to_chars (storep + 6, NOP_OPCODE, 2);
+ }
else
{
/* We have a "long" long jump: "JUMP [PC+]". If CRISv32, always
}
}
+/* Helper error-reporting function: calls as_bad for a format string
+ for a single value and zeroes the offending value (zero assumed
+ being a valid value) to avoid repeated error reports in later value
+ checking. */
+
+static void
+cris_bad (const char *format, offsetT *valp)
+{
+ /* We cast to long so the format string can assume that format. */
+ as_bad (format, (long) *valp);
+ *valp = 0;
+}
+
/* Low level text-to-bits assembly. */
static void
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < 0
|| out_insnp->expr.X_add_number > 31))
- as_bad (_("Immediate value not in 5 bit unsigned range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 5 bit unsigned range: %ld"),
+ &out_insnp->expr.X_add_number);
out_insnp->reloc = BFD_RELOC_CRIS_UNSIGNED_5;
continue;
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < 0
|| out_insnp->expr.X_add_number > 15))
- as_bad (_("Immediate value not in 4 bit unsigned range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 4 bit unsigned range: %ld"),
+ &out_insnp->expr.X_add_number);
out_insnp->reloc = BFD_RELOC_CRIS_UNSIGNED_4;
continue;
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < -32
|| out_insnp->expr.X_add_number > 31))
- as_bad (_("Immediate value not in 6 bit range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 6 bit range: %ld"),
+ &out_insnp->expr.X_add_number);
+
out_insnp->reloc = BFD_RELOC_CRIS_SIGNED_6;
continue;
}
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < 0
|| out_insnp->expr.X_add_number > 63))
- as_bad (_("Immediate value not in 6 bit unsigned range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 6 bit unsigned range: %ld"),
+ &out_insnp->expr.X_add_number);
+
out_insnp->reloc = BFD_RELOC_CRIS_UNSIGNED_6;
continue;
}
pseudo yet, so some of this is just unused
framework. */
if (out_insnp->spec_reg->warning)
- as_warn (out_insnp->spec_reg->warning);
+ as_warn ("%s", out_insnp->spec_reg->warning);
else if (out_insnp->spec_reg->applicable_version
== cris_ver_warning)
/* Others have a generic warning. */
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < -128
|| out_insnp->expr.X_add_number > 255))
- as_bad (_("Immediate value not in 8 bit range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 8 bit range: %ld"),
+ &out_insnp->expr.X_add_number);
/* Fall through. */
case 2:
/* FIXME: We need an indicator in the instruction
if (out_insnp->expr.X_op == O_constant
&& (out_insnp->expr.X_add_number < -32768
|| out_insnp->expr.X_add_number > 65535))
- as_bad (_("Immediate value not in 16 bit range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 16 bit range: %ld"),
+ &out_insnp->expr.X_add_number);
out_insnp->imm_oprnd_size = 2;
break;
if (instruction->imm_oprnd_size == SIZE_FIELD
&& (out_insnp->expr.X_add_number < -128
|| out_insnp->expr.X_add_number > 255))
- as_bad (_("Immediate value not in 8 bit range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 8 bit range: %ld"),
+ &out_insnp->expr.X_add_number);
else if (instruction->imm_oprnd_size == SIZE_FIELD_SIGNED
&& (out_insnp->expr.X_add_number < -128
|| out_insnp->expr.X_add_number > 127))
- as_bad (_("Immediate value not in 8 bit signed range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 8 bit signed range: %ld"),
+ &out_insnp->expr.X_add_number);
else if (instruction->imm_oprnd_size == SIZE_FIELD_UNSIGNED
&& (out_insnp->expr.X_add_number < 0
|| out_insnp->expr.X_add_number > 255))
- as_bad (_("Immediate value not in 8 bit unsigned range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 8 bit unsigned range: %ld"),
+ &out_insnp->expr.X_add_number);
}
/* Fall through. */
if (instruction->imm_oprnd_size == SIZE_FIELD
&& (out_insnp->expr.X_add_number < -32768
|| out_insnp->expr.X_add_number > 65535))
- as_bad (_("Immediate value not in 16 bit range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 16 bit range: %ld"),
+ &out_insnp->expr.X_add_number);
else if (instruction->imm_oprnd_size == SIZE_FIELD_SIGNED
&& (out_insnp->expr.X_add_number < -32768
|| out_insnp->expr.X_add_number > 32767))
- as_bad (_("Immediate value not in 16 bit signed range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 16 bit signed range: %ld"),
+ &out_insnp->expr.X_add_number);
else if (instruction->imm_oprnd_size == SIZE_FIELD_UNSIGNED
&& (out_insnp->expr.X_add_number < 0
|| out_insnp->expr.X_add_number > 65535))
- as_bad (_("Immediate value not in 16 bit unsigned range: %ld"),
- out_insnp->expr.X_add_number);
+ cris_bad (_("Immediate value not in 16 bit unsigned range: %ld"),
+ &out_insnp->expr.X_add_number);
}
out_insnp->imm_oprnd_size = 2;
break;
cris_get_expression (char **cPP, expressionS *exprP)
{
char *saved_input_line_pointer;
- segT exp;
/* The "expression" function expects to find an expression at the
global variable input_line_pointer, so we have to save it to give
return 0;
}
- exp = expression (exprP);
+ expression (exprP);
if (exprP->X_op == O_illegal || exprP->X_op == O_absent)
{
input_line_pointer = saved_input_line_pointer;
break;
case OPTION_PIC:
+ if (OUTPUT_FLAVOR != bfd_target_elf_flavour)
+ as_bad (_("--pic is invalid for this object format"));
pic = TRUE;
if (cris_arch != arch_crisv32)
md_long_jump_size = cris_any_v0_v10_long_jump_size_pic;
}
relP = (arelent *) xmalloc (sizeof (arelent));
- assert (relP != 0);
+ gas_assert (relP != 0);
relP->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
*relP->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
relP->address = fixP->fx_frag->fr_address + fixP->fx_where;
_(" --no-underscore User symbols do not have any prefix.\n"));
fprintf (stream, "%s",
_(" Registers will require a `$'-prefix.\n"));
+#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
fprintf (stream, "%s",
_(" --pic Enable generation of position-independent code.\n"));
+#endif
fprintf (stream, "%s",
_(" --march=<arch> Generate code for <arch>. Valid choices for <arch>\n\
are v0_v10, v10, v32 and common_v10_v32.\n"));
dwarf2_directive_loc (dummy);
}
+/* Worker for .dtpoffd: generate a R_CRIS_32_DTPREL reloc, as for
+ expr:DTPREL but for use in debug info. */
+
+static void
+s_cris_dtpoff (int bytes)
+{
+ expressionS ex;
+ char *p;
+
+ if (bytes != 4)
+ as_fatal (_("internal inconsistency problem: %s called for %d bytes"),
+ __FUNCTION__, bytes);
+
+ expression (&ex);
+
+ p = frag_more (bytes);
+ md_number_to_chars (p, 0, bytes);
+ fix_new_exp (frag_now, p - frag_now->fr_literal, bytes, &ex, FALSE,
+ BFD_RELOC_CRIS_32_DTPREL);
+
+ demand_empty_rest_of_line ();
+}
+
+
/* Translate a <arch> string (as common to --march=<arch> and .arch <arch>)
into an enum. If the string *STR is recognized, *STR is updated to point
to the end of the string. If the string is not recognized,
projects / deliverable / binutils-gdb.git / blobdiff