/* tc-sh.c -- Assemble code for the Renesas / SuperH SH
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+ Copyright (C) 1993-2024 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ the Free Software Foundation, 51 Franklin Street - Fifth Floor,
+ Boston, MA 02110-1301, USA. */
/* Written By Steve Chamberlain <sac@cygnus.com> */
-#include <stdio.h>
#include "as.h"
-#include "bfd.h"
#include "subsegs.h"
#define DEFINE_TABLE
#include "opcodes/sh-opc.h"
#include "safe-ctype.h"
-#include "struc-symbol.h"
#ifdef OBJ_ELF
#include "elf/sh.h"
#endif
#include "dwarf2dbg.h"
+#include "dw2gencfi.h"
typedef struct
{
{"2byte", s_uacons, 2},
{"4byte", s_uacons, 4},
{"8byte", s_uacons, 8},
-#ifdef HAVE_SH64
- {"mode", s_sh64_mode, 0 },
-
- /* Have the old name too. */
- {"isa", s_sh64_mode, 0 },
-
- /* Assert that the right ABI is used. */
- {"abi", s_sh64_abi, 0 },
-
- { "vtable_inherit", sh64_vtable_inherit, 0 },
- { "vtable_entry", sh64_vtable_entry, 0 },
-#endif /* HAVE_SH64 */
{0, 0, 0}
};
-/*int md_reloc_size; */
-
int sh_relax; /* set if -relax seen */
/* Whether -small was seen. */
int sh_small;
-/* preset architecture set, if given; zero otherwise. */
+/* Flag to generate relocations against symbol values for local symbols. */
+
+static int dont_adjust_reloc_32;
+
+/* Flag to indicate that '$' is allowed as a register prefix. */
+
+static int allow_dollar_register_prefix;
+
+/* Preset architecture set, if given; zero otherwise. */
-static int preset_target_arch;
+static unsigned int preset_target_arch;
/* The bit mask of architectures that could
accommodate the insns seen so far. */
-static int valid_arch;
+static unsigned int valid_arch;
+
+#ifdef OBJ_ELF
+/* Whether --fdpic was given. */
+static int sh_fdpic;
+#endif
const char EXP_CHARS[] = "eE";
#define COND_JUMP_DELAY 2
#define UNCOND_JUMP 3
-#ifdef HAVE_SH64
-
-/* A 16-bit (times four) pc-relative operand, at most expanded to 32 bits. */
-#define SH64PCREL16_32 4
-/* A 16-bit (times four) pc-relative operand, at most expanded to 64 bits. */
-#define SH64PCREL16_64 5
-
-/* Variants of the above for adjusting the insn to PTA or PTB according to
- the label. */
-#define SH64PCREL16PT_32 6
-#define SH64PCREL16PT_64 7
-
-/* A MOVI expansion, expanding to at most 32 or 64 bits. */
-#define MOVI_IMM_32 8
-#define MOVI_IMM_32_PCREL 9
-#define MOVI_IMM_64 10
-#define MOVI_IMM_64_PCREL 11
-#define END 12
-
-#else /* HAVE_SH64 */
-
#define END 4
-#endif /* HAVE_SH64 */
-
#define UNDEF_DISP 0
#define COND8 1
#define COND12 2
#define UNCOND12 1
#define UNCOND32 2
-#ifdef HAVE_SH64
-#define UNDEF_SH64PCREL 0
-#define SH64PCREL16 1
-#define SH64PCREL32 2
-#define SH64PCREL48 3
-#define SH64PCREL64 4
-#define SH64PCRELPLT 5
-
-#define UNDEF_MOVI 0
-#define MOVI_16 1
-#define MOVI_32 2
-#define MOVI_48 3
-#define MOVI_64 4
-#define MOVI_PLT 5
-#define MOVI_GOTOFF 6
-#define MOVI_GOTPC 7
-#endif /* HAVE_SH64 */
-
/* Branch displacements are from the address of the branch plus
four, thus all minimum and maximum values have 4 added to them. */
#define COND8_F 258
#define UNCOND32_M -(1<<30)
#define UNCOND32_LENGTH 14
-#ifdef HAVE_SH64
-/* The trivial expansion of a SH64PCREL16 relaxation is just a "PT label,
- TRd" as is the current insn, so no extra length. Note that the "reach"
- is calculated from the address *after* that insn, but the offset in the
- insn is calculated from the beginning of the insn. We also need to
- take into account the implicit 1 coded as the "A" in PTA when counting
- forward. If PTB reaches an odd address, we trap that as an error
- elsewhere, so we don't have to have different relaxation entries. We
- don't add a one to the negative range, since PTB would then have the
- farthest backward-reaching value skipped, not generated at relaxation. */
-#define SH64PCREL16_F (32767 * 4 - 4 + 1)
-#define SH64PCREL16_M (-32768 * 4 - 4)
-#define SH64PCREL16_LENGTH 0
-
-/* The next step is to change that PT insn into
- MOVI ((label - datalabel Ln) >> 16) & 65535, R25
- SHORI (label - datalabel Ln) & 65535, R25
- Ln:
- PTREL R25,TRd
- which means two extra insns, 8 extra bytes. This is the limit for the
- 32-bit ABI.
-
- The expressions look a bit bad since we have to adjust this to avoid overflow on a
- 32-bit host. */
-#define SH64PCREL32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4)
-#define SH64PCREL32_LENGTH (2 * 4)
-
-/* Similarly, we just change the MOVI and add a SHORI for the 48-bit
- expansion. */
-#if BFD_HOST_64BIT_LONG
-/* The "reach" type is long, so we can only do this for a 64-bit-long
- host. */
-#define SH64PCREL32_M (((long) -1 << 30) * 2 - 4)
-#define SH64PCREL48_F ((((long) 1 << 47) - 1) - 4)
-#define SH64PCREL48_M (((long) -1 << 47) - 4)
-#define SH64PCREL48_LENGTH (3 * 4)
-#else
-/* If the host does not have 64-bit longs, just make this state identical
- in reach to the 32-bit state. Note that we have a slightly incorrect
- reach, but the correct one above will overflow a 32-bit number. */
-#define SH64PCREL32_M (((long) -1 << 30) * 2)
-#define SH64PCREL48_F SH64PCREL32_F
-#define SH64PCREL48_M SH64PCREL32_M
-#define SH64PCREL48_LENGTH (3 * 4)
-#endif /* BFD_HOST_64BIT_LONG */
-
-/* And similarly for the 64-bit expansion; a MOVI + SHORI + SHORI + SHORI
- + PTREL sequence. */
-#define SH64PCREL64_LENGTH (4 * 4)
-
-/* For MOVI, we make the MOVI + SHORI... expansion you can see in the
- SH64PCREL expansions. The PCREL one is similar, but the other has no
- pc-relative reach; it must be fully expanded in
- shmedia_md_estimate_size_before_relax. */
-#define MOVI_16_LENGTH 0
-#define MOVI_16_F (32767 - 4)
-#define MOVI_16_M (-32768 - 4)
-#define MOVI_32_LENGTH 4
-#define MOVI_32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4)
-#define MOVI_48_LENGTH 8
-
-#if BFD_HOST_64BIT_LONG
-/* The "reach" type is long, so we can only do this for a 64-bit-long
- host. */
-#define MOVI_32_M (((long) -1 << 30) * 2 - 4)
-#define MOVI_48_F ((((long) 1 << 47) - 1) - 4)
-#define MOVI_48_M (((long) -1 << 47) - 4)
-#else
-/* If the host does not have 64-bit longs, just make this state identical
- in reach to the 32-bit state. Note that we have a slightly incorrect
- reach, but the correct one above will overflow a 32-bit number. */
-#define MOVI_32_M (((long) -1 << 30) * 2)
-#define MOVI_48_F MOVI_32_F
-#define MOVI_48_M MOVI_32_M
-#endif /* BFD_HOST_64BIT_LONG */
-
-#define MOVI_64_LENGTH 12
-#endif /* HAVE_SH64 */
-
#define EMPTY { 0, 0, 0, 0 }
const relax_typeS md_relax_table[C (END, 0)] = {
EMPTY, EMPTY, EMPTY,
EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-#ifdef HAVE_SH64
- /* C (SH64PCREL16_32, SH64PCREL16) */
- EMPTY,
- { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_32, SH64PCREL32) },
- /* C (SH64PCREL16_32, SH64PCREL32) */
- { 0, 0, SH64PCREL32_LENGTH, 0 },
- EMPTY, EMPTY,
- /* C (SH64PCREL16_32, SH64PCRELPLT) */
- { 0, 0, SH64PCREL32_LENGTH, 0 },
- EMPTY, EMPTY,
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (SH64PCREL16_64, SH64PCREL16) */
- EMPTY,
- { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_64, SH64PCREL32) },
- /* C (SH64PCREL16_64, SH64PCREL32) */
- { SH64PCREL32_F, SH64PCREL32_M, SH64PCREL32_LENGTH, C (SH64PCREL16_64, SH64PCREL48) },
- /* C (SH64PCREL16_64, SH64PCREL48) */
- { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16_64, SH64PCREL64) },
- /* C (SH64PCREL16_64, SH64PCREL64) */
- { 0, 0, SH64PCREL64_LENGTH, 0 },
- /* C (SH64PCREL16_64, SH64PCRELPLT) */
- { 0, 0, SH64PCREL64_LENGTH, 0 },
- EMPTY, EMPTY,
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (SH64PCREL16PT_32, SH64PCREL16) */
- EMPTY,
- { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_32, SH64PCREL32) },
- /* C (SH64PCREL16PT_32, SH64PCREL32) */
- { 0, 0, SH64PCREL32_LENGTH, 0 },
- EMPTY, EMPTY,
- /* C (SH64PCREL16PT_32, SH64PCRELPLT) */
- { 0, 0, SH64PCREL32_LENGTH, 0 },
- EMPTY, EMPTY,
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (SH64PCREL16PT_64, SH64PCREL16) */
- EMPTY,
- { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_64, SH64PCREL32) },
- /* C (SH64PCREL16PT_64, SH64PCREL32) */
- { SH64PCREL32_F,
- SH64PCREL32_M,
- SH64PCREL32_LENGTH,
- C (SH64PCREL16PT_64, SH64PCREL48) },
- /* C (SH64PCREL16PT_64, SH64PCREL48) */
- { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16PT_64, SH64PCREL64) },
- /* C (SH64PCREL16PT_64, SH64PCREL64) */
- { 0, 0, SH64PCREL64_LENGTH, 0 },
- /* C (SH64PCREL16PT_64, SH64PCRELPLT) */
- { 0, 0, SH64PCREL64_LENGTH, 0},
- EMPTY, EMPTY,
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (MOVI_IMM_32, UNDEF_MOVI) */
- { 0, 0, MOVI_32_LENGTH, 0 },
- /* C (MOVI_IMM_32, MOVI_16) */
- { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32, MOVI_32) },
- /* C (MOVI_IMM_32, MOVI_32) */
- { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, 0 },
- EMPTY, EMPTY, EMPTY,
- /* C (MOVI_IMM_32, MOVI_GOTOFF) */
- { 0, 0, MOVI_32_LENGTH, 0 },
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (MOVI_IMM_32_PCREL, MOVI_16) */
- EMPTY,
- { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32_PCREL, MOVI_32) },
- /* C (MOVI_IMM_32_PCREL, MOVI_32) */
- { 0, 0, MOVI_32_LENGTH, 0 },
- EMPTY, EMPTY,
- /* C (MOVI_IMM_32_PCREL, MOVI_PLT) */
- { 0, 0, MOVI_32_LENGTH, 0 },
- EMPTY,
- /* C (MOVI_IMM_32_PCREL, MOVI_GOTPC) */
- { 0, 0, MOVI_32_LENGTH, 0 },
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (MOVI_IMM_64, UNDEF_MOVI) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- /* C (MOVI_IMM_64, MOVI_16) */
- { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64, MOVI_32) },
- /* C (MOVI_IMM_64, MOVI_32) */
- { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64, MOVI_48) },
- /* C (MOVI_IMM_64, MOVI_48) */
- { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64, MOVI_64) },
- /* C (MOVI_IMM_64, MOVI_64) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- EMPTY,
- /* C (MOVI_IMM_64, MOVI_GOTOFF) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
- /* C (MOVI_IMM_64_PCREL, MOVI_16) */
- EMPTY,
- { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_32) },
- /* C (MOVI_IMM_64_PCREL, MOVI_32) */
- { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_48) },
- /* C (MOVI_IMM_64_PCREL, MOVI_48) */
- { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_64) },
- /* C (MOVI_IMM_64_PCREL, MOVI_64) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- /* C (MOVI_IMM_64_PCREL, MOVI_PLT) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- EMPTY,
- /* C (MOVI_IMM_64_PCREL, MOVI_GOTPC) */
- { 0, 0, MOVI_64_LENGTH, 0 },
- EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-
-#endif /* HAVE_SH64 */
-
};
#undef EMPTY
-static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
+static htab_t opcode_hash_control; /* Opcode mnemonics */
\f
#ifdef OBJ_ELF
-/* Determinet whether the symbol needs any kind of PIC relocation. */
+/* Determine whether the symbol needs any kind of PIC relocation. */
inline static int
sh_PIC_related_p (symbolS *sym)
if (sym == GOT_symbol)
return 1;
-#ifdef HAVE_SH64
- if (sh_PIC_related_p (*symbol_get_tc (sym)))
- return 1;
-#endif
-
exp = symbol_get_value_expression (sym);
return (exp->X_op == O_PIC_reloc
if (exp->X_op == O_symbol || exp->X_op == O_add || exp->X_op == O_subtract)
{
-#ifdef HAVE_SH64
- if (exp->X_add_symbol
- && (exp->X_add_symbol == GOT_symbol
- || (GOT_symbol
- && *symbol_get_tc (exp->X_add_symbol) == GOT_symbol)))
- {
- switch (*r_type_p)
- {
- case BFD_RELOC_SH_IMM_LOW16:
- *r_type_p = BFD_RELOC_SH_GOTPC_LOW16;
- break;
-
- case BFD_RELOC_SH_IMM_MEDLOW16:
- *r_type_p = BFD_RELOC_SH_GOTPC_MEDLOW16;
- break;
-
- case BFD_RELOC_SH_IMM_MEDHI16:
- *r_type_p = BFD_RELOC_SH_GOTPC_MEDHI16;
- break;
-
- case BFD_RELOC_SH_IMM_HI16:
- *r_type_p = BFD_RELOC_SH_GOTPC_HI16;
- break;
-
- case BFD_RELOC_NONE:
- case BFD_RELOC_UNUSED:
- *r_type_p = BFD_RELOC_SH_GOTPC;
- break;
-
- default:
- abort ();
- }
- return 0;
- }
-#else
if (exp->X_add_symbol && exp->X_add_symbol == GOT_symbol)
{
*r_type_p = BFD_RELOC_SH_GOTPC;
return 0;
}
-#endif
exp = symbol_get_value_expression (exp->X_add_symbol);
if (! exp)
return 0;
if (exp->X_op == O_PIC_reloc)
{
-#ifdef HAVE_SH64
switch (*r_type_p)
{
case BFD_RELOC_NONE:
*r_type_p = exp->X_md;
break;
- case BFD_RELOC_SH_IMM_LOW16:
- switch (exp->X_md)
- {
- case BFD_RELOC_32_GOTOFF:
- *r_type_p = BFD_RELOC_SH_GOTOFF_LOW16;
- break;
-
- case BFD_RELOC_SH_GOTPLT32:
- *r_type_p = BFD_RELOC_SH_GOTPLT_LOW16;
- break;
-
- case BFD_RELOC_32_GOT_PCREL:
- *r_type_p = BFD_RELOC_SH_GOT_LOW16;
- break;
-
- case BFD_RELOC_32_PLT_PCREL:
- *r_type_p = BFD_RELOC_SH_PLT_LOW16;
- break;
-
- default:
- abort ();
- }
- break;
-
- case BFD_RELOC_SH_IMM_MEDLOW16:
- switch (exp->X_md)
- {
- case BFD_RELOC_32_GOTOFF:
- *r_type_p = BFD_RELOC_SH_GOTOFF_MEDLOW16;
- break;
-
- case BFD_RELOC_SH_GOTPLT32:
- *r_type_p = BFD_RELOC_SH_GOTPLT_MEDLOW16;
- break;
-
- case BFD_RELOC_32_GOT_PCREL:
- *r_type_p = BFD_RELOC_SH_GOT_MEDLOW16;
- break;
-
- case BFD_RELOC_32_PLT_PCREL:
- *r_type_p = BFD_RELOC_SH_PLT_MEDLOW16;
- break;
-
- default:
- abort ();
- }
- break;
-
- case BFD_RELOC_SH_IMM_MEDHI16:
+ case BFD_RELOC_SH_DISP20:
switch (exp->X_md)
{
- case BFD_RELOC_32_GOTOFF:
- *r_type_p = BFD_RELOC_SH_GOTOFF_MEDHI16;
- break;
-
- case BFD_RELOC_SH_GOTPLT32:
- *r_type_p = BFD_RELOC_SH_GOTPLT_MEDHI16;
- break;
-
case BFD_RELOC_32_GOT_PCREL:
- *r_type_p = BFD_RELOC_SH_GOT_MEDHI16;
+ *r_type_p = BFD_RELOC_SH_GOT20;
break;
- case BFD_RELOC_32_PLT_PCREL:
- *r_type_p = BFD_RELOC_SH_PLT_MEDHI16;
- break;
-
- default:
- abort ();
- }
- break;
-
- case BFD_RELOC_SH_IMM_HI16:
- switch (exp->X_md)
- {
case BFD_RELOC_32_GOTOFF:
- *r_type_p = BFD_RELOC_SH_GOTOFF_HI16;
- break;
-
- case BFD_RELOC_SH_GOTPLT32:
- *r_type_p = BFD_RELOC_SH_GOTPLT_HI16;
+ *r_type_p = BFD_RELOC_SH_GOTOFF20;
break;
- case BFD_RELOC_32_GOT_PCREL:
- *r_type_p = BFD_RELOC_SH_GOT_HI16;
+ case BFD_RELOC_SH_GOTFUNCDESC:
+ *r_type_p = BFD_RELOC_SH_GOTFUNCDESC20;
break;
- case BFD_RELOC_32_PLT_PCREL:
- *r_type_p = BFD_RELOC_SH_PLT_HI16;
+ case BFD_RELOC_SH_GOTOFFFUNCDESC:
+ *r_type_p = BFD_RELOC_SH_GOTOFFFUNCDESC20;
break;
default:
default:
abort ();
}
-#else
- *r_type_p = exp->X_md;
-#endif
if (exp == main_exp)
exp->X_op = O_symbol;
else
/* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */
void
-sh_cons_fix_new (fragS *frag, int off, int size, expressionS *exp)
+sh_cons_fix_new (fragS *frag, int off, int size, expressionS *exp,
+ bfd_reloc_code_real_type r_type)
{
- bfd_reloc_code_real_type r_type = BFD_RELOC_UNUSED;
+ r_type = BFD_RELOC_UNUSED;
if (sh_check_fixup (exp, &r_type))
as_bad (_("Invalid PIC expression."));
r_type = BFD_RELOC_32;
break;
-#ifdef HAVE_SH64
case 8:
r_type = BFD_RELOC_64;
break;
-#endif
default:
goto error;
/* Clobbers input_line_pointer, checks end-of-line. */
/* NBYTES 1=.byte, 2=.word, 4=.long */
static void
-sh_elf_cons (register int nbytes)
+sh_elf_cons (int nbytes)
{
expressionS exp;
-#ifdef HAVE_SH64
-
- /* Update existing range to include a previous insn, if there was one. */
- sh64_update_contents_mark (TRUE);
-
- /* We need to make sure the contents type is set to data. */
- sh64_flag_output ();
-
-#endif /* HAVE_SH64 */
-
if (is_it_end_of_statement ())
{
demand_empty_rest_of_line ();
else
demand_empty_rest_of_line ();
}
-#endif /* OBJ_ELF */
+/* The regular frag_offset_fixed_p doesn't work for rs_align_test
+ frags. */
+
+static bool
+align_test_frag_offset_fixed_p (const fragS *frag1, const fragS *frag2,
+ bfd_vma *offset)
+{
+ const fragS *frag;
+ bfd_vma off;
+
+ /* Start with offset initialised to difference between the two frags.
+ Prior to assigning frag addresses this will be zero. */
+ off = frag1->fr_address - frag2->fr_address;
+ if (frag1 == frag2)
+ {
+ *offset = off;
+ return true;
+ }
+
+ /* Maybe frag2 is after frag1. */
+ frag = frag1;
+ while (frag->fr_type == rs_fill
+ || frag->fr_type == rs_align_test)
+ {
+ if (frag->fr_type == rs_fill)
+ off += frag->fr_fix + frag->fr_offset * frag->fr_var;
+ else
+ off += frag->fr_fix;
+ frag = frag->fr_next;
+ if (frag == NULL)
+ break;
+ if (frag == frag2)
+ {
+ *offset = off;
+ return true;
+ }
+ }
+
+ /* Maybe frag1 is after frag2. */
+ off = frag1->fr_address - frag2->fr_address;
+ frag = frag2;
+ while (frag->fr_type == rs_fill
+ || frag->fr_type == rs_align_test)
+ {
+ if (frag->fr_type == rs_fill)
+ off -= frag->fr_fix + frag->fr_offset * frag->fr_var;
+ else
+ off -= frag->fr_fix;
+ frag = frag->fr_next;
+ if (frag == NULL)
+ break;
+ if (frag == frag1)
+ {
+ *offset = off;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/* Optimize a difference of symbols which have rs_align_test frag if
+ possible. */
+
+int
+sh_optimize_expr (expressionS *l, operatorT op, expressionS *r)
+{
+ bfd_vma frag_off;
+
+ if (op == O_subtract
+ && l->X_op == O_symbol
+ && r->X_op == O_symbol
+ && S_GET_SEGMENT (l->X_add_symbol) == S_GET_SEGMENT (r->X_add_symbol)
+ && (SEG_NORMAL (S_GET_SEGMENT (l->X_add_symbol))
+ || r->X_add_symbol == l->X_add_symbol)
+ && align_test_frag_offset_fixed_p (symbol_get_frag (l->X_add_symbol),
+ symbol_get_frag (r->X_add_symbol),
+ &frag_off))
+ {
+ offsetT symval_diff = S_GET_VALUE (l->X_add_symbol)
+ - S_GET_VALUE (r->X_add_symbol);
+ subtract_from_result (l, r->X_add_number, r->X_extrabit);
+ subtract_from_result (l, frag_off / OCTETS_PER_BYTE, 0);
+ add_to_result (l, symval_diff, symval_diff < 0);
+ l->X_op = O_constant;
+ l->X_add_symbol = 0;
+ return 1;
+ }
+ return 0;
+}
+#endif /* OBJ_ELF */
\f
/* This function is called once, at assembler startup time. This should
set up all the tables, etc that the MD part of the assembler needs. */
md_begin (void)
{
const sh_opcode_info *opcode;
- char *prev_name = "";
- int target_arch;
+ const char *prev_name = "";
+ unsigned int target_arch;
target_arch
- = preset_target_arch ? preset_target_arch : arch_sh1_up & ~arch_sh_dsp_up;
+ = preset_target_arch ? preset_target_arch : arch_sh_up & ~arch_sh_has_dsp;
valid_arch = target_arch;
-#ifdef HAVE_SH64
- shmedia_md_begin ();
-#endif
-
- opcode_hash_control = hash_new ();
+ opcode_hash_control = str_htab_create ();
/* Insert unique names into hash table. */
for (opcode = sh_table; opcode->name; opcode++)
{
if (strcmp (prev_name, opcode->name) != 0)
{
- if (! (opcode->arch & target_arch))
+ if (!SH_MERGE_ARCH_SET_VALID (opcode->arch, target_arch))
continue;
prev_name = opcode->name;
- hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
+ str_hash_insert (opcode_hash_control, opcode->name, opcode, 0);
}
}
}
/* Try to parse a reg name. Return the number of chars consumed. */
-static int
-parse_reg (char *src, int *mode, int *reg)
+static unsigned int
+parse_reg_without_prefix (char *src, sh_arg_type *mode, int *reg)
{
char l0 = TOLOWER (src[0]);
char l1 = l0 ? TOLOWER (src[1]) : 0;
return 3;
}
+ if (l0 == 't' && l1 == 'b' && TOLOWER (src[2]) == 'r'
+ && ! IDENT_CHAR ((unsigned char) src[3]))
+ {
+ *mode = A_TBR;
+ return 3;
+ }
if (l0 == 'm' && l1 == 'a' && TOLOWER (src[2]) == 'c'
&& ! IDENT_CHAR ((unsigned char) src[4]))
{
return 0;
}
+/* Like parse_reg_without_prefix, but this version supports
+ $-prefixed register names if enabled by the user. */
+
+static unsigned int
+parse_reg (char *src, sh_arg_type *mode, int *reg)
+{
+ unsigned int prefix;
+ unsigned int consumed;
+
+ if (src[0] == '$')
+ {
+ if (allow_dollar_register_prefix)
+ {
+ src ++;
+ prefix = 1;
+ }
+ else
+ return 0;
+ }
+ else
+ prefix = 0;
+
+ consumed = parse_reg_without_prefix (src, mode, reg);
+
+ if (consumed == 0)
+ return 0;
+
+ return consumed + prefix;
+}
+
static char *
parse_exp (char *s, sh_operand_info *op)
{
char *save;
- char *new;
+ char *new_pointer;
save = input_line_pointer;
input_line_pointer = s;
expression (&op->immediate);
if (op->immediate.X_op == O_absent)
as_bad (_("missing operand"));
-#ifdef OBJ_ELF
- else if (op->immediate.X_op == O_PIC_reloc
- || sh_PIC_related_p (op->immediate.X_add_symbol)
- || sh_PIC_related_p (op->immediate.X_op_symbol))
- as_bad (_("misplaced PIC operand"));
-#endif
- new = input_line_pointer;
+ new_pointer = input_line_pointer;
input_line_pointer = save;
- return new;
+ return new_pointer;
}
/* The many forms of operand:
parse_at (char *src, sh_operand_info *op)
{
int len;
- int mode;
+ sh_arg_type mode;
src++;
- if (src[0] == '-')
+ if (src[0] == '@')
+ {
+ src = parse_at (src, op);
+ if (op->type == A_DISP_TBR)
+ op->type = A_DISP2_TBR;
+ else
+ as_bad (_("illegal double indirection"));
+ }
+ else if (src[0] == '-')
{
/* Must be predecrement. */
src++;
{
op->type = A_DISP_GBR;
}
+ else if (mode == A_TBR)
+ {
+ op->type = A_DISP_TBR;
+ }
else if (mode == A_PC)
{
/* We want @(expr, pc) to uniformly address . + expr,
get_operand (char **ptr, sh_operand_info *op)
{
char *src = *ptr;
- int mode = -1;
+ sh_arg_type mode = (sh_arg_type) -1;
unsigned int len;
if (src[0] == '#')
get_operands (sh_opcode_info *info, char *args, sh_operand_info *operand)
{
char *ptr = args;
+
+ operand[0].type = 0;
+ operand[1].type = 0;
+ operand[2].type = 0;
if (info->arg[0])
{
/* The pre-processor will eliminate whitespace in front of '@'
if (info->arg[1])
{
if (*ptr == ',')
- {
- ptr++;
- }
+ ptr++;
get_operand (&ptr, operand + 1);
/* ??? Hack: psha/pshl have a varying operand number depending on
the type of the first operand. We handle this by having the
if (info->arg[2] && operand[0].type != A_IMM)
{
if (*ptr == ',')
- {
- ptr++;
- }
+ ptr++;
get_operand (&ptr, operand + 2);
}
- else
- {
- operand[2].type = 0;
- }
- }
- else
- {
- operand[1].type = 0;
- operand[2].type = 0;
}
}
- else
- {
- operand[0].type = 0;
- operand[1].type = 0;
- operand[2].type = 0;
- }
return ptr;
}
get_specific (sh_opcode_info *opcode, sh_operand_info *operands)
{
sh_opcode_info *this_try = opcode;
- char *name = opcode->name;
+ const char *name = opcode->name;
int n = 0;
while (opcode->name)
case A_BDISP12:
case A_BDISP8:
case A_DISP_GBR:
+ case A_DISP2_TBR:
case A_MACH:
case A_PR:
case A_MACL:
reg_n = user->reg;
break;
case A_GBR:
+ case A_TBR:
case A_SR:
case A_VBR:
case A_DSR:
reg_b = user->reg;
break;
+ case A_INC_R15:
+ if (user->type != A_INC_N)
+ goto fail;
+ if (user->reg != 15)
+ goto fail;
+ reg_n = user->reg;
+ break;
+
+ case A_DEC_R15:
+ if (user->type != A_DEC_N)
+ goto fail;
+ if (user->reg != 15)
+ goto fail;
+ reg_n = user->reg;
+ break;
+
case A_REG_M:
case A_INC_M:
case A_DEC_M:
goto fail;
reg_n = user->reg;
break;
-
+
case AS_INC_N:
if (user->type != A_INC_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AS_IND_N:
if (user->type != A_IND_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AS_PMOD_N:
if (user->type != AX_PMOD_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AX_INC_N:
if (user->type != A_INC_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AX_IND_N:
if (user->type != A_IND_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AX_PMOD_N:
if (user->type != AX_PMOD_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AXY_INC_N:
if (user->type != A_INC_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AXY_IND_N:
if (user->type != A_IND_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AXY_PMOD_N:
if (user->type != AX_PMOD_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AY_INC_N:
if (user->type != A_INC_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AY_IND_N:
if (user->type != A_IND_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AY_PMOD_N:
if (user->type != AY_PMOD_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AYX_IND_N:
if (user->type != A_IND_N)
goto fail;
goto fail;
reg_n = user->reg;
break;
-
+
case AYX_PMOD_N:
if (user->type != AY_PMOD_N)
goto fail;
printf (_("unhandled %d\n"), arg);
goto fail;
}
+ if (SH_MERGE_ARCH_SET_VALID (valid_arch, arch_sh2a_nofpu_up)
+ && ( arg == A_DISP_REG_M
+ || arg == A_DISP_REG_N))
+ {
+ /* Check a few key IMM* fields for overflow. */
+ int opf;
+ long val = user->immediate.X_add_number;
+
+ for (opf = 0; opf < 4; opf ++)
+ switch (this_try->nibbles[opf])
+ {
+ case IMM0_4:
+ case IMM1_4:
+ if (val < 0 || val > 15)
+ goto fail;
+ break;
+ case IMM0_4BY2:
+ case IMM1_4BY2:
+ if (val < 0 || val > 15 * 2)
+ goto fail;
+ break;
+ case IMM0_4BY4:
+ case IMM1_4BY4:
+ if (val < 0 || val > 15 * 4)
+ goto fail;
+ break;
+ default:
+ break;
+ }
+ }
}
- if ( !(valid_arch & this_try->arch))
+ if ( !SH_MERGE_ARCH_SET_VALID (valid_arch, this_try->arch))
goto fail;
- valid_arch &= this_try->arch;
+ valid_arch = SH_MERGE_ARCH_SET (valid_arch, this_try->arch);
return this_try;
fail:
;
}
static void
-insert (char *where, int how, int pcrel, sh_operand_info *op)
+insert (char *where, bfd_reloc_code_real_type how, int pcrel,
+ sh_operand_info *op)
{
fix_new_exp (frag_now,
where - frag_now->fr_literal,
how);
}
+static void
+insert4 (char * where, bfd_reloc_code_real_type how, int pcrel,
+ sh_operand_info * op)
+{
+ fix_new_exp (frag_now,
+ where - frag_now->fr_literal,
+ 4,
+ & op->immediate,
+ pcrel,
+ how);
+}
static void
build_relax (sh_opcode_info *opcode, sh_operand_info *op)
{
static char *
insert_loop_bounds (char *output, sh_operand_info *operand)
{
- char *name;
symbolS *end_sym;
/* Since the low byte of the opcode will be overwritten by the reloc, we
if (sh_relax)
{
static int count = 0;
+ char name[11];
+ expressionS *symval;
/* If the last loop insn is a two-byte-insn, it is in danger of being
swapped with the insn after it. To prevent this, create a new
right in the middle, but four byte insns are not swapped anyways. */
/* A REPEAT takes 6 bytes. The SH has a 32 bit address space.
Hence a 9 digit number should be enough to count all REPEATs. */
- name = alloca (11);
sprintf (name, "_R%x", count++ & 0x3fffffff);
- end_sym = symbol_new (name, undefined_section, 0, &zero_address_frag);
+ end_sym = symbol_new (name, undefined_section, &zero_address_frag, 0);
/* Make this a local symbol. */
#ifdef OBJ_COFF
SF_SET_LOCAL (end_sym);
#endif /* OBJ_COFF */
symbol_table_insert (end_sym);
- end_sym->sy_value = operand[1].immediate;
- end_sym->sy_value.X_add_number += 2;
+ symval = symbol_get_value_expression (end_sym);
+ *symval = operand[1].immediate;
+ symval->X_add_number += 2;
fix_new (frag_now, frag_now_fix (), 2, end_sym, 0, 1, BFD_RELOC_SH_LABEL);
}
static unsigned int
build_Mytes (sh_opcode_info *opcode, sh_operand_info *operand)
{
- int index;
- char nbuf[4];
- char *output = frag_more (2);
+ int indx;
+ char nbuf[8];
+ char *output;
unsigned int size = 2;
int low_byte = target_big_endian ? 1 : 0;
+ int max_index = 4;
+ bfd_reloc_code_real_type r_type;
+#ifdef OBJ_ELF
+ int unhandled_pic = 0;
+#endif
+
nbuf[0] = 0;
nbuf[1] = 0;
nbuf[2] = 0;
nbuf[3] = 0;
+ nbuf[4] = 0;
+ nbuf[5] = 0;
+ nbuf[6] = 0;
+ nbuf[7] = 0;
+
+#ifdef OBJ_ELF
+ for (indx = 0; indx < 3; indx++)
+ if (opcode->arg[indx] == A_IMM
+ && operand[indx].type == A_IMM
+ && (operand[indx].immediate.X_op == O_PIC_reloc
+ || sh_PIC_related_p (operand[indx].immediate.X_add_symbol)
+ || sh_PIC_related_p (operand[indx].immediate.X_op_symbol)))
+ unhandled_pic = 1;
+#endif
- for (index = 0; index < 4; index++)
+ if (SH_MERGE_ARCH_SET (opcode->arch, arch_op32))
{
- sh_nibble_type i = opcode->nibbles[index];
+ output = frag_more (4);
+ size = 4;
+ max_index = 8;
+ }
+ else
+ output = frag_more (2);
+
+ for (indx = 0; indx < max_index; indx++)
+ {
+ sh_nibble_type i = opcode->nibbles[indx];
if (i < 16)
{
- nbuf[index] = i;
+ nbuf[indx] = i;
}
else
{
switch (i)
{
case REG_N:
- nbuf[index] = reg_n;
+ case REG_N_D:
+ nbuf[indx] = reg_n;
break;
case REG_M:
- nbuf[index] = reg_m;
+ nbuf[indx] = reg_m;
break;
case SDT_REG_N:
if (reg_n < 2 || reg_n > 5)
as_bad (_("Invalid register: 'r%d'"), reg_n);
- nbuf[index] = (reg_n & 3) | 4;
+ nbuf[indx] = (reg_n & 3) | 4;
break;
case REG_NM:
- nbuf[index] = reg_n | (reg_m >> 2);
+ nbuf[indx] = reg_n | (reg_m >> 2);
break;
case REG_B:
- nbuf[index] = reg_b | 0x08;
+ nbuf[indx] = reg_b | 0x08;
break;
- case IMM0_4BY4:
- insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand);
+ case REG_N_B01:
+ nbuf[indx] = reg_n | 0x01;
+ break;
+ case IMM0_3s:
+ nbuf[indx] |= 0x08;
+ /* Fall through. */
+ case IMM0_3c:
+ insert (output + low_byte, BFD_RELOC_SH_IMM3, 0, operand);
+ break;
+ case IMM0_3Us:
+ nbuf[indx] |= 0x80;
+ /* Fall through. */
+ case IMM0_3Uc:
+ insert (output + low_byte, BFD_RELOC_SH_IMM3U, 0, operand);
+ break;
+ case DISP0_12:
+ insert (output + 2, BFD_RELOC_SH_DISP12, 0, operand);
+ break;
+ case DISP0_12BY2:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY2, 0, operand);
+ break;
+ case DISP0_12BY4:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY4, 0, operand);
+ break;
+ case DISP0_12BY8:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY8, 0, operand);
+ break;
+ case DISP1_12:
+ insert (output + 2, BFD_RELOC_SH_DISP12, 0, operand+1);
+ break;
+ case DISP1_12BY2:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY2, 0, operand+1);
+ break;
+ case DISP1_12BY4:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY4, 0, operand+1);
+ break;
+ case DISP1_12BY8:
+ insert (output + 2, BFD_RELOC_SH_DISP12BY8, 0, operand+1);
+ break;
+ case IMM0_20_4:
+ break;
+ case IMM0_20:
+ r_type = BFD_RELOC_SH_DISP20;
+#ifdef OBJ_ELF
+ if (sh_check_fixup (&operand->immediate, &r_type))
+ as_bad (_("Invalid PIC expression."));
+ unhandled_pic = 0;
+#endif
+ insert4 (output, r_type, 0, operand);
+ break;
+ case IMM0_20BY8:
+ insert4 (output, BFD_RELOC_SH_DISP20BY8, 0, operand);
+ break;
+ case IMM0_4BY4:
+ insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand);
break;
case IMM0_4BY2:
insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand);
case IMM0_8BY2:
insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand);
break;
- case IMM0_8:
+ case IMM0_8U:
+ case IMM0_8S:
insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand);
break;
case IMM1_8BY4:
break;
case REPEAT:
output = insert_loop_bounds (output, operand);
- nbuf[index] = opcode->nibbles[3];
+ nbuf[indx] = opcode->nibbles[3];
operand += 2;
break;
default:
}
}
}
+#ifdef OBJ_ELF
+ if (unhandled_pic)
+ as_bad (_("misplaced PIC operand"));
+#endif
if (!target_big_endian)
{
output[1] = (nbuf[0] << 4) | (nbuf[1]);
output[0] = (nbuf[0] << 4) | (nbuf[1]);
output[1] = (nbuf[2] << 4) | (nbuf[3]);
}
+ if (SH_MERGE_ARCH_SET (opcode->arch, arch_op32))
+ {
+ if (!target_big_endian)
+ {
+ output[3] = (nbuf[4] << 4) | (nbuf[5]);
+ output[2] = (nbuf[6] << 4) | (nbuf[7]);
+ }
+ else
+ {
+ output[2] = (nbuf[4] << 4) | (nbuf[5]);
+ output[3] = (nbuf[6] << 4) | (nbuf[7]);
+ }
+ }
return size;
}
unsigned char *op_start;
unsigned char *op_end;
char name[20];
- int nlen = 0;
+ unsigned int nlen = 0;
/* Drop leading whitespace. */
while (*str == ' ')
The pre-processor will eliminate whitespace in front of
any '@' after the first argument; we may be called from
assemble_ppi, so the opcode might be terminated by an '@'. */
- for (op_start = op_end = (unsigned char *) (str);
+ for (op_start = op_end = (unsigned char *) str;
*op_end
- && nlen < 20
+ && nlen < sizeof (name) - 1
&& !is_end_of_line[*op_end] && *op_end != ' ' && *op_end != '@';
op_end++)
{
}
name[nlen] = 0;
- *str_p = op_end;
+ *str_p = (char *) op_end;
if (nlen == 0)
as_bad (_("can't find opcode "));
- return (sh_opcode_info *) hash_find (opcode_hash_control, name);
+ return (sh_opcode_info *) str_hash_find (opcode_hash_control, name);
}
/* Assemble a parallel processing insn. */
static unsigned int
assemble_ppi (char *op_end, sh_opcode_info *opcode)
{
- int movx = 0;
- int movy = 0;
- int cond = 0;
- int field_b = 0;
+ unsigned int movx = 0;
+ unsigned int movy = 0;
+ unsigned int cond = 0;
+ unsigned int field_b = 0;
char *output;
- int move_code;
+ unsigned int move_code;
unsigned int size;
for (;;)
field_b -= 0x8100;
/* pclr Dz pmuls Se,Sf,Dg */
else if ((field_b & 0xff00) == 0x8d00
- && (valid_arch & arch_sh4al_dsp_up))
+ && (SH_MERGE_ARCH_SET_VALID (valid_arch, arch_sh4al_dsp_up)))
{
- valid_arch &= arch_sh4al_dsp_up;
+ valid_arch = SH_MERGE_ARCH_SET (valid_arch, arch_sh4al_dsp_up);
field_b -= 0x8cf0;
}
else
if (field_b)
{
/* Parallel processing insn. */
- unsigned long ppi_code = (movx | movy | 0xf800) << 16 | field_b;
+ unsigned int ppi_code = (movx | movy | 0xf800) << 16 | field_b;
output = frag_more (4);
size = 4;
void
md_assemble (char *str)
{
- unsigned char *op_end;
+ char *op_end;
sh_operand_info operand[3];
sh_opcode_info *opcode;
unsigned int size = 0;
-
-#ifdef HAVE_SH64
- if (sh64_isa_mode == sh64_isa_shmedia)
- {
- shmedia_md_assemble (str);
- return;
- }
- else
- {
- /* If we've seen pseudo-directives, make sure any emitted data or
- frags are marked as data. */
- if (!seen_insn)
- {
- sh64_update_contents_mark (TRUE);
- sh64_set_contents_type (CRT_SH5_ISA16);
- }
-
- seen_insn = TRUE;
- }
-#endif /* HAVE_SH64 */
+ char *initial_str = str;
opcode = find_cooked_opcode (&str);
op_end = str;
if (opcode == NULL)
{
- as_bad (_("unknown opcode"));
+ /* The opcode is not in the hash table.
+ This means we definitely have an assembly failure,
+ but the instruction may be valid in another CPU variant.
+ In this case emit something better than 'unknown opcode'.
+ Search the full table in sh-opc.h to check. */
+
+ char *name = initial_str;
+ int name_length = 0;
+ const sh_opcode_info *op;
+ bool found = false;
+
+ /* Identify opcode in string. */
+ while (ISSPACE (*name))
+ name++;
+
+ while (name[name_length] != '\0' && !ISSPACE (name[name_length]))
+ name_length++;
+
+ /* Search for opcode in full list. */
+ for (op = sh_table; op->name; op++)
+ {
+ if (strncasecmp (op->name, name, name_length) == 0
+ && op->name[name_length] == '\0')
+ {
+ found = true;
+ break;
+ }
+ }
+
+ if (found)
+ as_bad (_("opcode not valid for this cpu variant"));
+ else
+ as_bad (_("unknown opcode"));
+
return;
}
{
/* Since we skip get_specific here, we have to check & update
valid_arch now. */
- if (valid_arch & opcode->arch)
- valid_arch &= opcode->arch;
+ if (SH_MERGE_ARCH_SET_VALID (valid_arch, opcode->arch))
+ valid_arch = SH_MERGE_ARCH_SET (valid_arch, opcode->arch);
else
as_bad (_("Delayed branches not available on SH1"));
parse_exp (op_end + 1, &operand[0]);
build_relax (opcode, &operand[0]);
+
+ /* All branches are currently 16 bit. */
+ size = 2;
}
else
{
}
}
-#ifdef BFD_ASSEMBLER
dwarf2_emit_insn (size);
-#endif
}
/* This routine is called each time a label definition is seen. It
emits a BFD_RELOC_SH_LABEL reloc if necessary. */
void
-sh_frob_label (void)
+sh_frob_label (symbolS *sym)
{
static fragS *last_label_frag;
static int last_label_offset;
last_label_offset = offset;
}
}
+
+ dwarf2_emit_label (sym);
}
/* This routine is called when the assembler is about to output some
return 0;
}
-#ifdef OBJ_COFF
-#ifndef BFD_ASSEMBLER
-
-void
-tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED)
-{
- printf (_("call to tc_crawl_symbol_chain \n"));
-}
-
-void
-tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED)
-{
- printf (_("call to tc_headers_hook \n"));
-}
-
-#endif
-#endif
-
/* Various routines to kill one day. */
-/* Equal to MAX_PRECISION in atof-ieee.c. */
-#define MAX_LITTLENUMS 6
-/* Turn a string in input_line_pointer into a floating point constant
- of type TYPE, and store the appropriate bytes in *LITP. The number
- of LITTLENUMS emitted is stored in *SIZEP . An error message is
- returned, or NULL on OK. */
-
-char *
+const char *
md_atof (int type, char *litP, int *sizeP)
{
- int prec;
- LITTLENUM_TYPE words[4];
- char *t;
- int i;
-
- switch (type)
- {
- case 'f':
- prec = 2;
- break;
-
- case 'd':
- prec = 4;
- break;
-
- default:
- *sizeP = 0;
- return _("bad call to md_atof");
- }
-
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
-
- *sizeP = prec * 2;
-
- if (! target_big_endian)
- {
- for (i = prec - 1; i >= 0; i--)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- }
- else
- {
- for (i = 0; i < prec; i++)
- {
- md_number_to_chars (litP, (valueT) words[i], 2);
- litP += 2;
- }
- }
-
- return NULL;
+ return ieee_md_atof (type, litP, sizeP, target_big_endian);
}
/* Handle the .uses pseudo-op. This pseudo-op is used just before a
demand_empty_rest_of_line ();
}
\f
+enum options
+{
+ OPTION_RELAX = OPTION_MD_BASE,
+ OPTION_BIG,
+ OPTION_LITTLE,
+ OPTION_SMALL,
+ OPTION_DSP,
+ OPTION_ISA,
+ OPTION_RENESAS,
+ OPTION_ALLOW_REG_PREFIX,
+ OPTION_H_TICK_HEX,
+#ifdef OBJ_ELF
+ OPTION_FDPIC,
+#endif
+ OPTION_DUMMY /* Not used. This is just here to make it easy to add and subtract options from this enum. */
+};
+
const char *md_shortopts = "";
struct option md_longopts[] =
{
-#define OPTION_RELAX (OPTION_MD_BASE)
-#define OPTION_BIG (OPTION_MD_BASE + 1)
-#define OPTION_LITTLE (OPTION_BIG + 1)
-#define OPTION_SMALL (OPTION_LITTLE + 1)
-#define OPTION_DSP (OPTION_SMALL + 1)
-#define OPTION_ISA (OPTION_DSP + 1)
-
{"relax", no_argument, NULL, OPTION_RELAX},
{"big", no_argument, NULL, OPTION_BIG},
{"little", no_argument, NULL, OPTION_LITTLE},
+ /* The next two switches are here because the
+ generic parts of the linker testsuite uses them. */
+ {"EB", no_argument, NULL, OPTION_BIG},
+ {"EL", no_argument, NULL, OPTION_LITTLE},
{"small", no_argument, NULL, OPTION_SMALL},
{"dsp", no_argument, NULL, OPTION_DSP},
- {"isa", required_argument, NULL, OPTION_ISA},
-#ifdef HAVE_SH64
-#define OPTION_ABI (OPTION_ISA + 1)
-#define OPTION_NO_MIX (OPTION_ABI + 1)
-#define OPTION_SHCOMPACT_CONST_CRANGE (OPTION_NO_MIX + 1)
-#define OPTION_NO_EXPAND (OPTION_SHCOMPACT_CONST_CRANGE + 1)
-#define OPTION_PT32 (OPTION_NO_EXPAND + 1)
- {"abi", required_argument, NULL, OPTION_ABI},
- {"no-mix", no_argument, NULL, OPTION_NO_MIX},
- {"shcompact-const-crange", no_argument, NULL, OPTION_SHCOMPACT_CONST_CRANGE},
- {"no-expand", no_argument, NULL, OPTION_NO_EXPAND},
- {"expand-pt32", no_argument, NULL, OPTION_PT32},
-#endif /* HAVE_SH64 */
+ {"isa", required_argument, NULL, OPTION_ISA},
+ {"renesas", no_argument, NULL, OPTION_RENESAS},
+ {"allow-reg-prefix", no_argument, NULL, OPTION_ALLOW_REG_PREFIX},
+
+ { "h-tick-hex", no_argument, NULL, OPTION_H_TICK_HEX },
+
+#ifdef OBJ_ELF
+ {"fdpic", no_argument, NULL, OPTION_FDPIC},
+#endif
{NULL, no_argument, NULL, 0}
};
size_t md_longopts_size = sizeof (md_longopts);
int
-md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
+md_parse_option (int c, const char *arg ATTRIBUTE_UNUSED)
{
switch (c)
{
break;
case OPTION_DSP:
- preset_target_arch = arch_sh1_up & ~arch_sh2e_up;
+ preset_target_arch = arch_sh_up & ~(arch_sh_sp_fpu|arch_sh_dp_fpu);
+ break;
+
+ case OPTION_RENESAS:
+ dont_adjust_reloc_32 = 1;
+ break;
+
+ case OPTION_ALLOW_REG_PREFIX:
+ allow_dollar_register_prefix = 1;
break;
case OPTION_ISA:
- if (strcasecmp (arg, "sh4") == 0)
- preset_target_arch = arch_sh4;
- else if (strcasecmp (arg, "sh4a") == 0)
- preset_target_arch = arch_sh4a;
- else if (strcasecmp (arg, "dsp") == 0)
- preset_target_arch = arch_sh1_up & ~arch_sh2e_up;
+ if (strcasecmp (arg, "dsp") == 0)
+ preset_target_arch = arch_sh_up & ~(arch_sh_sp_fpu|arch_sh_dp_fpu);
else if (strcasecmp (arg, "fp") == 0)
- preset_target_arch = arch_sh2e_up;
+ preset_target_arch = arch_sh_up & ~arch_sh_has_dsp;
else if (strcasecmp (arg, "any") == 0)
- preset_target_arch = arch_sh1_up;
-#ifdef HAVE_SH64
- else if (strcasecmp (arg, "shmedia") == 0)
- {
- if (sh64_isa_mode == sh64_isa_shcompact)
- as_bad (_("Invalid combination: --isa=SHcompact with --isa=SHmedia"));
- sh64_isa_mode = sh64_isa_shmedia;
- }
- else if (strcasecmp (arg, "shcompact") == 0)
- {
- if (sh64_isa_mode == sh64_isa_shmedia)
- as_bad (_("Invalid combination: --isa=SHmedia with --isa=SHcompact"));
- if (sh64_abi == sh64_abi_64)
- as_bad (_("Invalid combination: --abi=64 with --isa=SHcompact"));
- sh64_isa_mode = sh64_isa_shcompact;
- }
-#endif /* HAVE_SH64 */
+ preset_target_arch = arch_sh_up;
else
- as_bad ("Invalid argument to --isa option: %s", arg);
- break;
-
-#ifdef HAVE_SH64
- case OPTION_ABI:
- if (strcmp (arg, "32") == 0)
{
- if (sh64_abi == sh64_abi_64)
- as_bad (_("Invalid combination: --abi=32 with --abi=64"));
- sh64_abi = sh64_abi_32;
- }
- else if (strcmp (arg, "64") == 0)
- {
- if (sh64_abi == sh64_abi_32)
- as_bad (_("Invalid combination: --abi=64 with --abi=32"));
- if (sh64_isa_mode == sh64_isa_shcompact)
- as_bad (_("Invalid combination: --isa=SHcompact with --abi=64"));
- sh64_abi = sh64_abi_64;
- }
- else
- as_bad ("Invalid argument to --abi option: %s", arg);
- break;
+ extern const bfd_arch_info_type bfd_sh_arch;
+ bfd_arch_info_type const *bfd_arch = &bfd_sh_arch;
- case OPTION_NO_MIX:
- sh64_mix = FALSE;
- break;
+ preset_target_arch = 0;
+ for (; bfd_arch; bfd_arch=bfd_arch->next)
+ {
+ int len = strlen(bfd_arch->printable_name);
+
+ if (strncasecmp (bfd_arch->printable_name, arg, len) != 0)
+ continue;
- case OPTION_SHCOMPACT_CONST_CRANGE:
- sh64_shcompact_const_crange = TRUE;
+ if (arg[len] == '\0')
+ preset_target_arch =
+ sh_get_arch_from_bfd_mach (bfd_arch->mach);
+ else if (strcasecmp(&arg[len], "-up") == 0)
+ preset_target_arch =
+ sh_get_arch_up_from_bfd_mach (bfd_arch->mach);
+ else
+ continue;
+ break;
+ }
+
+ if (!preset_target_arch)
+ as_bad (_("Invalid argument to --isa option: %s"), arg);
+ }
break;
- case OPTION_NO_EXPAND:
- sh64_expand = FALSE;
+ case OPTION_H_TICK_HEX:
+ enable_h_tick_hex = 1;
break;
- case OPTION_PT32:
- sh64_pt32 = TRUE;
+#ifdef OBJ_ELF
+ case OPTION_FDPIC:
+ sh_fdpic = true;
break;
-#endif /* HAVE_SH64 */
+#endif /* OBJ_ELF */
default:
return 0;
{
fprintf (stream, _("\
SH options:\n\
--little generate little endian code\n\
--big generate big endian code\n\
--relax alter jump instructions for long displacements\n\
--small align sections to 4 byte boundaries, not 16\n\
--dsp enable sh-dsp insns, and disable floating-point ISAs.\n"));
- fprintf (stream, _("\
--isa=[sh4\n\
- | sh4a\n\
- | dsp same as '-dsp'\n\
- | fp\n"
-#ifdef HAVE_SH64
-"\
- | shmedia set default instruction set for SH64\n\
- | SHmedia\n\
- | shcompact\n\
- | SHcompact\n"
-#endif
-"\
- | any]\n"));
-#ifdef HAVE_SH64
+--little generate little endian code\n\
+--big generate big endian code\n\
+--relax alter jump instructions for long displacements\n\
+--renesas disable optimization with section symbol for\n\
+ compatibility with Renesas assembler.\n\
+--small align sections to 4 byte boundaries, not 16\n\
+--dsp enable sh-dsp insns, and disable floating-point ISAs.\n\
+--allow-reg-prefix allow '$' as a register name prefix.\n\
+--isa=[any use most appropriate isa\n\
+ | dsp same as '-dsp'\n\
+ | fp"));
+ {
+ extern const bfd_arch_info_type bfd_sh_arch;
+ bfd_arch_info_type const *bfd_arch = &bfd_sh_arch;
+
+ for (; bfd_arch; bfd_arch=bfd_arch->next)
+ {
+ fprintf (stream, "\n | %s", bfd_arch->printable_name);
+ fprintf (stream, "\n | %s-up", bfd_arch->printable_name);
+ }
+ }
+ fprintf (stream, "]\n");
+#ifdef OBJ_ELF
fprintf (stream, _("\
--abi=[32|64] set size of expanded SHmedia operands and object\n\
- file type\n\
--shcompact-const-crange emit code-range descriptors for constants in\n\
- SHcompact code sections\n\
--no-mix disallow SHmedia code in the same section as\n\
- constants and SHcompact code\n\
--no-expand do not expand MOVI, PT, PTA or PTB instructions\n\
--expand-pt32 with -abi=64, expand PT, PTA and PTB instructions\n\
- to 32 bits only"));
-#endif /* HAVE_SH64 */
+--fdpic generate an FDPIC object file\n"));
+#endif /* OBJ_ELF */
}
\f
/* This struct is used to pass arguments to sh_count_relocs through
};
/* Count the number of fixups in a section which refer to a particular
- symbol. When using BFD_ASSEMBLER, this is called via
- bfd_map_over_sections. */
+ symbol. This is called via bfd_map_over_sections. */
static void
sh_count_relocs (bfd *abfd ATTRIBUTE_UNUSED, segT sec, void *data)
}
}
-/* Handle the count relocs for a particular section. When using
- BFD_ASSEMBLER, this is called via bfd_map_over_sections. */
+/* Handle the count relocs for a particular section.
+ This is called via bfd_map_over_sections. */
static void
sh_frob_section (bfd *abfd ATTRIBUTE_UNUSED, segT sec,
|| fix->fx_subsy != NULL
|| fix->fx_addnumber != 0
|| S_GET_SEGMENT (sym) != sec
-#if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF)
- || S_GET_STORAGE_CLASS (sym) == C_EXT
-#endif
|| S_IS_EXTERNAL (sym))
{
as_warn_where (fix->fx_file, fix->fx_line,
|| fscan->fx_subsy != NULL
|| fscan->fx_addnumber != 0
|| S_GET_SEGMENT (sym) != sec
-#if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF)
- || S_GET_STORAGE_CLASS (sym) == C_EXT
-#endif
|| S_IS_EXTERNAL (sym))
{
as_warn_where (fix->fx_file, fix->fx_line,
counting the number of times we find a reference to sym. */
info.sym = sym;
info.count = 0;
-#ifdef BFD_ASSEMBLER
bfd_map_over_sections (stdoutput, sh_count_relocs, &info);
-#else
- {
- int iscan;
-
- for (iscan = SEG_E0; iscan < SEG_UNKNOWN; iscan++)
- sh_count_relocs ((bfd *) NULL, iscan, &info);
- }
-#endif
if (info.count < 1)
abort ();
void
sh_frob_file (void)
{
-#ifdef HAVE_SH64
- shmedia_frob_file_before_adjust ();
-#endif
-
if (! sh_relax)
return;
-#ifdef BFD_ASSEMBLER
bfd_map_over_sections (stdoutput, sh_frob_section, NULL);
-#else
- {
- int iseg;
-
- for (iseg = SEG_E0; iseg < SEG_UNKNOWN; iseg++)
- sh_frob_section ((bfd *) NULL, iseg, NULL);
- }
-#endif
}
/* Called after relaxing. Set the correct sizes of the fragments, and
- create relocs so that md_apply_fix3 will fill in the correct values. */
+ create relocs so that md_apply_fix will fill in the correct values. */
void
-#ifdef BFD_ASSEMBLER
md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, segT seg, fragS *fragP)
-#else
-md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, segT seg,
- fragS *fragP)
-#endif
{
int donerelax = 0;
differently from ones without delay slots. */
{
unsigned char *buffer =
- (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
+ (unsigned char *) (fragP->fr_fix + &fragP->fr_literal[0]);
int highbyte = target_big_endian ? 0 : 1;
int lowbyte = target_big_endian ? 1 : 0;
int delay = fragP->fr_subtype == C (COND_JUMP_DELAY, COND12);
/* Build a relocation to six / four bytes farther on. */
subseg_change (seg, 0);
- fix_new (fragP, fragP->fr_fix, 2,
-#ifdef BFD_ASSEMBLER
- section_symbol (seg),
-#else
- seg_info (seg)->dot,
-#endif
+ fix_new (fragP, fragP->fr_fix, 2, section_symbol (seg),
fragP->fr_address + fragP->fr_fix + (delay ? 4 : 6),
1, BFD_RELOC_SH_PCDISP8BY2);
break;
default:
-#ifdef HAVE_SH64
- shmedia_md_convert_frag (headers, seg, fragP, TRUE);
-#else
abort ();
-#endif
}
if (donerelax && !sh_relax)
valueT
md_section_align (segT seg ATTRIBUTE_UNUSED, valueT size)
{
-#ifdef BFD_ASSEMBLER
#ifdef OBJ_ELF
return size;
#else /* ! OBJ_ELF */
- return ((size + (1 << bfd_get_section_alignment (stdoutput, seg)) - 1)
- & (-1 << bfd_get_section_alignment (stdoutput, seg)));
+ return ((size + (1 << bfd_section_alignment (seg)) - 1)
+ & -(1 << bfd_section_alignment (seg)));
#endif /* ! OBJ_ELF */
-#else /* ! BFD_ASSEMBLER */
- return ((size + (1 << section_alignment[(int) seg]) - 1)
- & (-1 << section_alignment[(int) seg]));
-#endif /* ! BFD_ASSEMBLER */
}
/* This static variable is set by s_uacons to tell sh_cons_align that
sh_cons_align (int nbytes)
{
int nalign;
- char *p;
if (sh_no_align_cons)
{
return;
}
- p = frag_var (rs_align_test, 1, 1, (relax_substateT) 0,
- (symbolS *) NULL, (offsetT) nalign, (char *) NULL);
+ frag_var (rs_align_test, 1, 1, (relax_substateT) 0,
+ (symbolS *) NULL, (offsetT) nalign, (char *) NULL);
record_alignment (now_seg, nalign);
}
else if (frag->fr_type == rs_align_test)
{
if (bytes != 0)
- as_warn_where (frag->fr_file, frag->fr_line, _("misaligned data"));
+ as_bad_where (frag->fr_file, frag->fr_line, _("misaligned data"));
}
if (sh_relax
/* See whether the relocation should be resolved locally. */
-static bfd_boolean
+static bool
sh_local_pcrel (fixS *fix)
{
return (! sh_relax
|| fix->fx_r_type == BFD_RELOC_SH_ALIGN
|| fix->fx_r_type == BFD_RELOC_SH_CODE
|| fix->fx_r_type == BFD_RELOC_SH_DATA
-#ifdef HAVE_SH64
- || fix->fx_r_type == BFD_RELOC_SH_SHMEDIA_CODE
-#endif
|| fix->fx_r_type == BFD_RELOC_SH_LABEL);
}
#ifdef OBJ_ELF
-bfd_boolean
+bool
sh_fix_adjustable (fixS *fixP)
{
if (fixP->fx_r_type == BFD_RELOC_32_PLT_PCREL
|| fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL
+ || fixP->fx_r_type == BFD_RELOC_SH_GOT20
|| fixP->fx_r_type == BFD_RELOC_SH_GOTPC
+ || fixP->fx_r_type == BFD_RELOC_SH_GOTFUNCDESC
+ || fixP->fx_r_type == BFD_RELOC_SH_GOTFUNCDESC20
+ || fixP->fx_r_type == BFD_RELOC_SH_GOTOFFFUNCDESC
+ || fixP->fx_r_type == BFD_RELOC_SH_GOTOFFFUNCDESC20
+ || fixP->fx_r_type == BFD_RELOC_SH_FUNCDESC
+ || ((fixP->fx_r_type == BFD_RELOC_32) && dont_adjust_reloc_32)
|| fixP->fx_r_type == BFD_RELOC_RVA)
return 0;
/* Set file-specific flags to indicate if this code needs
a processor with the sh-dsp / sh2e ISA to execute. */
-#ifdef HAVE_SH64
- /* SH5 and above don't know about the valid_arch arch_sh* bits defined
- in sh-opc.h, so check SH64 mode before checking valid_arch. */
- if (sh64_isa_mode != sh64_isa_unspecified)
- val = EF_SH5;
- else
-#endif /* HAVE_SH64 */
- if (valid_arch & arch_sh1)
- val = EF_SH1;
- else if (valid_arch & arch_sh2)
- val = EF_SH2;
- else if (valid_arch & arch_sh2e)
- val = EF_SH2E;
- else if (valid_arch & arch_sh_dsp)
- val = EF_SH_DSP;
- else if (valid_arch & arch_sh3)
- val = EF_SH3;
- else if (valid_arch & arch_sh3_dsp)
- val = EF_SH3_DSP;
- else if (valid_arch & arch_sh3e)
- val = EF_SH3E;
- else if (valid_arch & arch_sh4_nofpu)
- val = EF_SH4_NOFPU;
- else if (valid_arch & arch_sh4)
- val = EF_SH4;
- else if (valid_arch & arch_sh4a_nofpu)
- val = EF_SH4A_NOFPU;
- else if (valid_arch & arch_sh4a)
- val = EF_SH4A;
- else if (valid_arch & arch_sh4al_dsp)
- val = EF_SH4AL_DSP;
- else
- abort ();
+ val = sh_find_elf_flags (valid_arch);
elf_elfheader (stdoutput)->e_flags &= ~EF_SH_MACH_MASK;
elf_elfheader (stdoutput)->e_flags |= val;
+
+ if (sh_fdpic)
+ elf_elfheader (stdoutput)->e_flags |= EF_SH_FDPIC;
+}
+#endif
+
+#ifdef TE_UCLINUX
+/* Return the target format for uClinux. */
+
+const char *
+sh_uclinux_target_format (void)
+{
+ if (sh_fdpic)
+ return (!target_big_endian ? "elf32-sh-fdpic" : "elf32-shbig-fdpic");
+ else
+ return (!target_big_endian ? "elf32-shl" : "elf32-sh");
}
#endif
+/* Apply fixup FIXP to SIZE-byte field BUF given that VAL is its
+ assembly-time value. If we're generating a reloc for FIXP,
+ see whether the addend should be stored in-place or whether
+ it should be in an ELF r_addend field. */
+
+static void
+apply_full_field_fix (fixS *fixP, char *buf, bfd_vma val, int size)
+{
+ reloc_howto_type *howto;
+
+ if (fixP->fx_addsy != NULL || fixP->fx_pcrel)
+ {
+ howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type);
+ if (howto && !howto->partial_inplace)
+ {
+ fixP->fx_addnumber = val;
+ return;
+ }
+ }
+ md_number_to_chars (buf, val, size);
+}
+
/* Apply a fixup to the object file. */
void
-md_apply_fix3 (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
+md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
int lowbyte = target_big_endian ? 1 : 0;
long max, min;
int shift;
-#ifdef BFD_ASSEMBLER
/* A difference between two symbols, the second of which is in the
current section, is transformed in a PC-relative relocation to
the other symbol. We have to adjust the relocation type here. */
&& fixP->fx_addsy != NULL
&& S_IS_WEAK (fixP->fx_addsy))
val -= S_GET_VALUE (fixP->fx_addsy);
-#endif
-#ifdef BFD_ASSEMBLER
if (SWITCH_TABLE (fixP))
val -= S_GET_VALUE (fixP->fx_subsy);
-#else
- if (fixP->fx_r_type == 0)
- {
- if (fixP->fx_size == 2)
- fixP->fx_r_type = BFD_RELOC_16;
- else if (fixP->fx_size == 4)
- fixP->fx_r_type = BFD_RELOC_32;
- else if (fixP->fx_size == 1)
- fixP->fx_r_type = BFD_RELOC_8;
- else
- abort ();
- }
-#endif
max = min = 0;
shift = 0;
switch (fixP->fx_r_type)
{
+ case BFD_RELOC_SH_IMM3:
+ max = 0x7;
+ * buf = (* buf & 0xf8) | (val & 0x7);
+ break;
+ case BFD_RELOC_SH_IMM3U:
+ max = 0x7;
+ * buf = (* buf & 0x8f) | ((val & 0x7) << 4);
+ break;
+ case BFD_RELOC_SH_DISP12:
+ max = 0xfff;
+ buf[lowbyte] = val & 0xff;
+ buf[highbyte] |= (val >> 8) & 0x0f;
+ break;
+ case BFD_RELOC_SH_DISP12BY2:
+ max = 0xfff;
+ shift = 1;
+ buf[lowbyte] = (val >> 1) & 0xff;
+ buf[highbyte] |= (val >> 9) & 0x0f;
+ break;
+ case BFD_RELOC_SH_DISP12BY4:
+ max = 0xfff;
+ shift = 2;
+ buf[lowbyte] = (val >> 2) & 0xff;
+ buf[highbyte] |= (val >> 10) & 0x0f;
+ break;
+ case BFD_RELOC_SH_DISP12BY8:
+ max = 0xfff;
+ shift = 3;
+ buf[lowbyte] = (val >> 3) & 0xff;
+ buf[highbyte] |= (val >> 11) & 0x0f;
+ break;
+ case BFD_RELOC_SH_DISP20:
+ if (! target_big_endian)
+ abort();
+ max = 0x7ffff;
+ min = -0x80000;
+ buf[1] = (buf[1] & 0x0f) | ((val >> 12) & 0xf0);
+ buf[2] = (val >> 8) & 0xff;
+ buf[3] = val & 0xff;
+ break;
+ case BFD_RELOC_SH_DISP20BY8:
+ if (!target_big_endian)
+ abort();
+ max = 0x7ffff;
+ min = -0x80000;
+ shift = 8;
+ buf[1] = (buf[1] & 0x0f) | ((val >> 20) & 0xf0);
+ buf[2] = (val >> 16) & 0xff;
+ buf[3] = (val >> 8) & 0xff;
+ break;
+
case BFD_RELOC_SH_IMM4:
max = 0xf;
*buf = (*buf & 0xf0) | (val & 0xf);
break;
case BFD_RELOC_SH_PCRELIMM8BY4:
+ /* If we are dealing with a known destination ... */
+ if ((fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy))
+ && (fixP->fx_subsy == NULL || S_IS_DEFINED (fixP->fx_addsy)))
+ {
+ /* Don't silently move the destination due to misalignment.
+ The absolute address is the fragment base plus the offset into
+ the fragment plus the pc relative offset to the label. */
+ if ((fixP->fx_frag->fr_address + fixP->fx_where + val) & 3)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("offset to unaligned destination"));
+
+ /* The displacement cannot be zero or backward even if aligned.
+ Allow -2 because val has already been adjusted somewhere. */
+ if (val < -2)
+ as_bad_where (fixP->fx_file, fixP->fx_line, _("negative offset"));
+ }
+
/* The lower two bits of the PC are cleared before the
displacement is added in. We can assume that the destination
is on a 4 byte boundary. If this instruction is also on a 4
case BFD_RELOC_32:
case BFD_RELOC_32_PCREL:
- md_number_to_chars (buf, val, 4);
+ apply_full_field_fix (fixP, buf, val, 4);
break;
case BFD_RELOC_16:
- md_number_to_chars (buf, val, 2);
+ apply_full_field_fix (fixP, buf, val, 2);
break;
case BFD_RELOC_SH_USES:
- /* Pass the value into sh_coff_reloc_mangle. */
+ /* Pass the value into sh_reloc(). */
fixP->fx_addnumber = val;
break;
val = fixP->fx_offset;
if (fixP->fx_subsy)
val -= S_GET_VALUE (fixP->fx_subsy);
- fixP->fx_addnumber = val;
- md_number_to_chars (buf, val, 4);
+ apply_full_field_fix (fixP, buf, val, 4);
break;
case BFD_RELOC_SH_GOTPC:
was used to store the correction, but since the expression is
not pcrel, I felt it would be confusing to do it this way. */
* valP -= 1;
- md_number_to_chars (buf, val, 4);
+ apply_full_field_fix (fixP, buf, val, 4);
break;
case BFD_RELOC_SH_TLS_GD_32:
S_SET_THREAD_LOCAL (fixP->fx_addsy);
/* Fallthrough */
case BFD_RELOC_32_GOT_PCREL:
+ case BFD_RELOC_SH_GOT20:
case BFD_RELOC_SH_GOTPLT32:
+ case BFD_RELOC_SH_GOTFUNCDESC:
+ case BFD_RELOC_SH_GOTFUNCDESC20:
+ case BFD_RELOC_SH_GOTOFFFUNCDESC:
+ case BFD_RELOC_SH_GOTOFFFUNCDESC20:
+ case BFD_RELOC_SH_FUNCDESC:
* valP = 0; /* Fully resolved at runtime. No addend. */
- md_number_to_chars (buf, 0, 4);
+ apply_full_field_fix (fixP, buf, 0, 4);
break;
case BFD_RELOC_SH_TLS_LDO_32:
S_SET_THREAD_LOCAL (fixP->fx_addsy);
/* Fallthrough */
case BFD_RELOC_32_GOTOFF:
- md_number_to_chars (buf, val, 4);
+ case BFD_RELOC_SH_GOTOFF20:
+ apply_full_field_fix (fixP, buf, val, 4);
break;
#endif
default:
-#ifdef HAVE_SH64
- shmedia_md_apply_fix3 (fixP, valP);
- return;
-#else
abort ();
-#endif
}
if (shift != 0)
val = ((val >> shift)
| ((long) -1 & ~ ((long) -1 >> shift)));
}
+
+ /* Extend sign for 64-bit host. */
+ val = ((val & 0xffffffff) ^ 0x80000000) - 0x80000000;
if (max != 0 && (val < min || val > max))
as_bad_where (fixP->fx_file, fixP->fx_line, _("offset out of range"));
+ else if (max != 0)
+ /* Stop the generic code from trying to overflow check the value as well.
+ It may not have the correct value anyway, as we do not store val back
+ into *valP. */
+ fixP->fx_no_overflow = 1;
if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
fixP->fx_done = 1;
switch (fragP->fr_subtype)
{
default:
-#ifdef HAVE_SH64
- return shmedia_md_estimate_size_before_relax (fragP, segment_type);
-#else
abort ();
-#endif
-
case C (UNCOND_JUMP, UNDEF_DISP):
/* Used to be a branch to somewhere which was unknown. */
}
else if (fragP->fr_symbol)
{
- /* Its got a segment, but its not ours, so it will always be long. */
+ /* It's got a segment, but it's not ours, so it will always be long. */
fragP->fr_subtype = C (what, UNDEF_WORD_DISP);
}
else
void
md_number_to_chars (char *ptr, valueT use, int nbytes)
{
-#ifdef HAVE_SH64
- /* We might need to set the contents type to data. */
- sh64_flag_output ();
-#endif
-
if (! target_big_endian)
number_to_chars_littleendian (ptr, use, nbytes);
else
number_to_chars_bigendian (ptr, use, nbytes);
}
-/* This version is used in obj-coff.c when not using BFD_ASSEMBLER.
- eg for the sh-hms target. */
+/* This version is used in obj-coff.c eg. for the sh-hms target. */
long
md_pcrel_from (fixS *fixP)
return md_pcrel_from (fixP);
}
-#ifdef OBJ_COFF
-
-int
-tc_coff_sizemachdep (fragS *frag)
-{
- return md_relax_table[frag->fr_subtype].rlx_length;
-}
-
-#endif /* OBJ_COFF */
-
-#ifndef BFD_ASSEMBLER
-#ifdef OBJ_COFF
-
-/* Map BFD relocs to SH COFF relocs. */
-
-struct reloc_map
-{
- bfd_reloc_code_real_type bfd_reloc;
- int sh_reloc;
-};
-
-static const struct reloc_map coff_reloc_map[] =
-{
- { BFD_RELOC_32, R_SH_IMM32 },
- { BFD_RELOC_16, R_SH_IMM16 },
- { BFD_RELOC_8, R_SH_IMM8 },
- { BFD_RELOC_SH_PCDISP8BY2, R_SH_PCDISP8BY2 },
- { BFD_RELOC_SH_PCDISP12BY2, R_SH_PCDISP },
- { BFD_RELOC_SH_IMM4, R_SH_IMM4 },
- { BFD_RELOC_SH_IMM4BY2, R_SH_IMM4BY2 },
- { BFD_RELOC_SH_IMM4BY4, R_SH_IMM4BY4 },
- { BFD_RELOC_SH_IMM8, R_SH_IMM8 },
- { BFD_RELOC_SH_IMM8BY2, R_SH_IMM8BY2 },
- { BFD_RELOC_SH_IMM8BY4, R_SH_IMM8BY4 },
- { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_PCRELIMM8BY2 },
- { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_PCRELIMM8BY4 },
- { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
- { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
- { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
- { BFD_RELOC_SH_USES, R_SH_USES },
- { BFD_RELOC_SH_COUNT, R_SH_COUNT },
- { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
- { BFD_RELOC_SH_CODE, R_SH_CODE },
- { BFD_RELOC_SH_DATA, R_SH_DATA },
- { BFD_RELOC_SH_LABEL, R_SH_LABEL },
- { BFD_RELOC_UNUSED, 0 }
-};
-
-/* Adjust a reloc for the SH. This is similar to the generic code,
- but does some minor tweaking. */
-
-void
-sh_coff_reloc_mangle (segment_info_type *seg, fixS *fix,
- struct internal_reloc *intr, unsigned int paddr)
-{
- symbolS *symbol_ptr = fix->fx_addsy;
- symbolS *dot;
-
- intr->r_vaddr = paddr + fix->fx_frag->fr_address + fix->fx_where;
-
- if (! SWITCH_TABLE (fix))
- {
- const struct reloc_map *rm;
-
- for (rm = coff_reloc_map; rm->bfd_reloc != BFD_RELOC_UNUSED; rm++)
- if (rm->bfd_reloc == (bfd_reloc_code_real_type) fix->fx_r_type)
- break;
- if (rm->bfd_reloc == BFD_RELOC_UNUSED)
- as_bad_where (fix->fx_file, fix->fx_line,
- _("Can not represent %s relocation in this object file format"),
- bfd_get_reloc_code_name (fix->fx_r_type));
- intr->r_type = rm->sh_reloc;
- intr->r_offset = 0;
- }
- else
- {
- know (sh_relax);
-
- if (fix->fx_r_type == BFD_RELOC_16)
- intr->r_type = R_SH_SWITCH16;
- else if (fix->fx_r_type == BFD_RELOC_8)
- intr->r_type = R_SH_SWITCH8;
- else if (fix->fx_r_type == BFD_RELOC_32)
- intr->r_type = R_SH_SWITCH32;
- else
- abort ();
-
- /* For a switch reloc, we set r_offset to the difference between
- the reloc address and the subtrahend. When the linker is
- doing relaxing, it can use the determine the starting and
- ending points of the switch difference expression. */
- intr->r_offset = intr->r_vaddr - S_GET_VALUE (fix->fx_subsy);
- }
-
- /* PC relative relocs are always against the current section. */
- if (symbol_ptr == NULL)
- {
- switch (fix->fx_r_type)
- {
- case BFD_RELOC_SH_PCRELIMM8BY2:
- case BFD_RELOC_SH_PCRELIMM8BY4:
- case BFD_RELOC_SH_PCDISP8BY2:
- case BFD_RELOC_SH_PCDISP12BY2:
- case BFD_RELOC_SH_USES:
- symbol_ptr = seg->dot;
- break;
- default:
- break;
- }
- }
-
- if (fix->fx_r_type == BFD_RELOC_SH_USES)
- {
- /* We can't store the offset in the object file, since this
- reloc does not take up any space, so we store it in r_offset.
- The fx_addnumber field was set in md_apply_fix3. */
- intr->r_offset = fix->fx_addnumber;
- }
- else if (fix->fx_r_type == BFD_RELOC_SH_COUNT)
- {
- /* We can't store the count in the object file, since this reloc
- does not take up any space, so we store it in r_offset. The
- fx_offset field was set when the fixup was created in
- sh_coff_frob_file. */
- intr->r_offset = fix->fx_offset;
- /* This reloc is always absolute. */
- symbol_ptr = NULL;
- }
- else if (fix->fx_r_type == BFD_RELOC_SH_ALIGN)
- {
- /* Store the alignment in the r_offset field. */
- intr->r_offset = fix->fx_offset;
- /* This reloc is always absolute. */
- symbol_ptr = NULL;
- }
- else if (fix->fx_r_type == BFD_RELOC_SH_CODE
- || fix->fx_r_type == BFD_RELOC_SH_DATA
- || fix->fx_r_type == BFD_RELOC_SH_LABEL)
- {
- /* These relocs are always absolute. */
- symbol_ptr = NULL;
- }
-
- /* Turn the segment of the symbol into an offset. */
- if (symbol_ptr != NULL)
- {
- dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
- if (dot != NULL)
- intr->r_symndx = dot->sy_number;
- else
- intr->r_symndx = symbol_ptr->sy_number;
- }
- else
- intr->r_symndx = -1;
-}
-
-#endif /* OBJ_COFF */
-#endif /* ! BFD_ASSEMBLER */
-
-#ifdef BFD_ASSEMBLER
-
/* Create a reloc. */
arelent *
arelent *rel;
bfd_reloc_code_real_type r_type;
- rel = (arelent *) xmalloc (sizeof (arelent));
- rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ rel = XNEW (arelent);
+ rel->sym_ptr_ptr = XNEW (asymbol *);
*rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
if (SWITCH_TABLE (fixp))
{
*rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
- rel->addend = 0;
+ rel->addend = rel->address - S_GET_VALUE(fixp->fx_subsy);
if (r_type == BFD_RELOC_16)
r_type = BFD_RELOC_SH_SWITCH16;
else if (r_type == BFD_RELOC_8)
rel->addend = 0;
rel->address = rel->addend = fixp->fx_offset;
}
-#ifdef HAVE_SH64
- else if (shmedia_init_reloc (rel, fixp))
- ;
-#endif
- else if (fixp->fx_pcrel)
- rel->addend = fixp->fx_addnumber;
- else if (r_type == BFD_RELOC_32 || r_type == BFD_RELOC_32_GOTOFF)
- rel->addend = fixp->fx_addnumber;
else
- rel->addend = 0;
+ rel->addend = fixp->fx_addnumber;
rel->howto = bfd_reloc_type_lookup (stdoutput, r_type);
-#ifdef OBJ_ELF
- if (rel->howto->type == R_SH_IND12W)
- rel->addend += fixp->fx_offset - 4;
-#endif
+
if (rel->howto == NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
bfd_get_reloc_code_name (r_type));
/* Set howto to a garbage value so that we can keep going. */
rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);
- assert (rel->howto != NULL);
+ gas_assert (rel->howto != NULL);
}
+#ifdef OBJ_ELF
+ else if (rel->howto->type == R_SH_IND12W)
+ rel->addend += fixp->fx_offset - 4;
+#endif
return rel;
}
#ifdef OBJ_ELF
inline static char *
-sh_end_of_match (char *cont, char *what)
+sh_end_of_match (char *cont, const char *what)
{
int len = strlen (what);
}
int
-sh_parse_name (char const *name, expressionS *exprP, char *nextcharP)
+sh_parse_name (char const *name,
+ expressionS *exprP,
+ enum expr_mode mode,
+ char *nextcharP)
{
char *next = input_line_pointer;
char *next_end;
exprP->X_add_symbol = GOT_symbol;
no_suffix:
/* If we have an absolute symbol or a reg, then we know its
- value now. */
+ value now. */
segment = S_GET_SEGMENT (exprP->X_add_symbol);
- if (segment == absolute_section)
+ if (mode != expr_defer && segment == absolute_section)
{
exprP->X_op = O_constant;
exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
exprP->X_add_symbol = NULL;
}
- else if (segment == reg_section)
+ else if (mode != expr_defer && segment == reg_section)
{
exprP->X_op = O_register;
exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
reloc_type = BFD_RELOC_SH_TLS_LE_32;
else if ((next_end = sh_end_of_match (next + 1, "DTPOFF")))
reloc_type = BFD_RELOC_SH_TLS_LDO_32;
+ else if ((next_end = sh_end_of_match (next + 1, "PCREL")))
+ reloc_type = BFD_RELOC_32_PCREL;
+ else if ((next_end = sh_end_of_match (next + 1, "GOTFUNCDESC")))
+ reloc_type = BFD_RELOC_SH_GOTFUNCDESC;
+ else if ((next_end = sh_end_of_match (next + 1, "GOTOFFFUNCDESC")))
+ reloc_type = BFD_RELOC_SH_GOTOFFFUNCDESC;
+ else if ((next_end = sh_end_of_match (next + 1, "FUNCDESC")))
+ reloc_type = BFD_RELOC_SH_FUNCDESC;
else
goto no_suffix;
return 1;
}
-#endif
-#endif /* BFD_ASSEMBLER */
+
+void
+sh_cfi_frame_initial_instructions (void)
+{
+ cfi_add_CFA_def_cfa (15, 0);
+}
+
+int
+sh_regname_to_dw2regnum (char *regname)
+{
+ unsigned int regnum = -1;
+ unsigned int i;
+ const char *p;
+ char *q;
+ static struct { const char *name; int dw2regnum; } regnames[] =
+ {
+ { "pr", 17 }, { "t", 18 }, { "gbr", 19 }, { "mach", 20 },
+ { "macl", 21 }, { "fpul", 23 }
+ };
+
+ for (i = 0; i < ARRAY_SIZE (regnames); ++i)
+ if (strcmp (regnames[i].name, regname) == 0)
+ return regnames[i].dw2regnum;
+
+ if (regname[0] == 'r')
+ {
+ p = regname + 1;
+ regnum = strtoul (p, &q, 10);
+ if (p == q || *q || regnum >= 16)
+ return -1;
+ }
+ else if (regname[0] == 'f' && regname[1] == 'r')
+ {
+ p = regname + 2;
+ regnum = strtoul (p, &q, 10);
+ if (p == q || *q || regnum >= 16)
+ return -1;
+ regnum += 25;
+ }
+ else if (regname[0] == 'x' && regname[1] == 'd')
+ {
+ p = regname + 2;
+ regnum = strtoul (p, &q, 10);
+ if (p == q || *q || regnum >= 8)
+ return -1;
+ regnum += 87;
+ }
+ return regnum;
+}
+#endif /* OBJ_ELF */
projects / thirdparty / binutils-gdb.git / blobdiff