/* tc-arm.c -- Assemble for the ARM
- Copyright (C) 1994, 95, 96, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
#include "symbols.h"
#include "listing.h"
-/* ??? This is currently unused. */
-#ifdef __STDC__
-#define internalError() \
- as_fatal ("ARM Internal Error, line %d, %s", __LINE__, __FILE__)
-#else
-#define internalError() as_fatal ("ARM Internal Error")
+#ifdef OBJ_ELF
+#include "elf/arm.h"
#endif
/* Types of processor to assemble for. */
#define ARM_250 ARM_3
#define ARM_6 0x00000008
#define ARM_7 ARM_6 /* same core instruction set */
+#define ARM_8 ARM_6 /* same core instruction set */
+#define ARM_9 ARM_6 /* same core instruction set */
#define ARM_CPU_MASK 0x0000000f
/* The following bitmasks control CPU extensions (ARM7 onwards): */
#define ARM_LONGMUL 0x00000010 /* allow long multiplies */
-#define ARM_ARCH4 0x00000020
-#define ARM_THUMB ARM_ARCH4
+#define ARM_HALFWORD 0x00000020 /* allow half word loads */
+#define ARM_THUMB 0x00000040 /* allow BX instruction */
+#define ARM_EXT_V5 0x00000080 /* allow CLZ etc */
+
+/* Architectures are the sum of the base and extensions */
+#define ARM_ARCH_V4 (ARM_7 | ARM_LONGMUL | ARM_HALFWORD)
+#define ARM_ARCH_V4T (ARM_ARCH_V4 | ARM_THUMB)
+#define ARM_ARCH_V5 (ARM_ARCH_V4 | ARM_EXT_V5)
+#define ARM_ARCH_V5T (ARM_ARCH_V5 | ARM_THUMB)
/* Some useful combinations: */
#define ARM_ANY 0x00ffffff
-#define ARM_2UP 0x00fffffe
+#define ARM_2UP (ARM_ANY - ARM_1)
#define ARM_ALL ARM_2UP /* Not arm1 only */
#define ARM_3UP 0x00fffffc
#define ARM_6UP 0x00fffff8 /* Includes ARM7 */
#ifndef CPU_DEFAULT
#if defined __thumb__
-#define CPU_DEFAULT (ARM_7 | ARM_THUMB)
+#define CPU_DEFAULT (ARM_ARCH_V4 | ARM_THUMB)
#else
#define CPU_DEFAULT ARM_ALL
#endif
#define FPU_DEFAULT FPU_ALL
#endif
+#define streq(a, b) (strcmp (a, b) == 0)
+#define skip_whitespace(str) while (* (str) == ' ') ++ (str)
+
static unsigned long cpu_variant = CPU_DEFAULT | FPU_DEFAULT;
+static int target_oabi = 0;
-#ifdef OBJ_COFF
-/* Flags stored in private area of BFD COFF structure */
+#if defined OBJ_COFF || defined OBJ_ELF
+/* Flags stored in private area of BFD structure */
static boolean uses_apcs_26 = false;
+static boolean support_interwork = false;
+static boolean uses_apcs_float = false;
+static boolean pic_code = false;
#endif
/* This array holds the chars that always start a comment. If the
/* Also note that comments like this one will always work. */
CONST char line_comment_chars[] = "#";
+#ifdef TE_LINUX
+CONST char line_separator_chars[] = ";";
+#else
CONST char line_separator_chars[] = "";
+#endif
/* Chars that can be used to separate mant from exp in floating point nums */
CONST char EXP_CHARS[] = "eE";
CONST char FLT_CHARS[] = "rRsSfFdDxXeEpP";
+/* Prefix characters that indicate the start of an immediate
+ value. */
+#define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
+
+#ifdef OBJ_ELF
+symbolS * GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
+#endif
+
CONST int md_reloc_size = 8; /* Size of relocation record */
static int thumb_mode = 0; /* non-zero if assembling thumb instructions */
struct arm_it
{
- CONST char *error;
+ CONST char * error;
unsigned long instruction;
- int suffix;
- int size;
+ int suffix;
+ int size;
struct
{
bfd_reloc_code_real_type type;
- expressionS exp;
- int pc_rel;
+ expressionS exp;
+ int pc_rel;
} reloc;
};
struct asm_shift
{
- CONST char *template;
+ CONST char * template;
unsigned long value;
};
#define NUM_FLOAT_VALS 8
-CONST char *fp_const[] =
+CONST char * fp_const[] =
{
"0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0", 0
};
struct asm_cond
{
- CONST char *template;
+ CONST char * template;
unsigned long value;
};
the set_bits: */
struct asm_flg
{
- CONST char *template; /* Basic flag string */
+ CONST char * template; /* Basic flag string */
unsigned long set_bits; /* Bits to set */
};
struct asm_psr
{
- CONST char *template;
+ CONST char * template;
unsigned long number;
};
-#define PSR_ALL 0x00010000
+#define PSR_FIELD_MASK 0x000f0000
+
+#define PSR_FLAGS 0x00080000
+#define PSR_CONTROL 0x00010000 /* Undocumented instruction, its use is discouraged by ARM */
+#define PSR_ALL 0x00090000
+
+#define CPSR_ALL 0
+#define SPSR_ALL 1
+#define CPSR_FLG 2
+#define SPSR_FLG 3
+#define CPSR_CTL 4
+#define SPSR_CTL 5
static CONST struct asm_psr psrs[] =
{
/* Valid <psr>'s */
- {"cpsr", 0},
- {"cpsr_all", 0},
- {"spsr", 1},
- {"spsr_all", 1},
+ {"cpsr", CPSR_ALL},
+ {"cpsr_all", CPSR_ALL},
+ {"spsr", SPSR_ALL},
+ {"spsr_all", SPSR_ALL},
/* Valid <psrf>'s */
- {"cpsr_flg", 2},
- {"spsr_flg", 3}
+ {"cpsr_flg", CPSR_FLG},
+ {"spsr_flg", SPSR_FLG},
+
+ /* Valid <psrc>'s */
+ {"cpsr_c", CPSR_CTL},
+ {"cpsr_ctl", CPSR_CTL},
+ {"spsr_c", SPSR_CTL},
+ {"spsr_ctl", SPSR_CTL}
};
/* Functions called by parser */
/* ARM instructions */
-static void do_arit PARAMS ((char *operands, unsigned long flags));
-static void do_cmp PARAMS ((char *operands, unsigned long flags));
-static void do_mov PARAMS ((char *operands, unsigned long flags));
-static void do_ldst PARAMS ((char *operands, unsigned long flags));
-static void do_ldmstm PARAMS ((char *operands, unsigned long flags));
-static void do_branch PARAMS ((char *operands, unsigned long flags));
-static void do_swi PARAMS ((char *operands, unsigned long flags));
-/* Pseudo Op codes */
-static void do_adr PARAMS ((char *operands, unsigned long flags));
-static void do_nop PARAMS ((char *operands, unsigned long flags));
-/* ARM 2 */
-static void do_mul PARAMS ((char *operands, unsigned long flags));
-static void do_mla PARAMS ((char *operands, unsigned long flags));
-/* ARM 3 */
-static void do_swap PARAMS ((char *operands, unsigned long flags));
-/* ARM 6 */
-static void do_msr PARAMS ((char *operands, unsigned long flags));
-static void do_mrs PARAMS ((char *operands, unsigned long flags));
-/* ARM 7M */
-static void do_mull PARAMS ((char *operands, unsigned long flags));
-/* ARM THUMB */
-static void do_bx PARAMS ((char *operands, unsigned long flags));
-
-/* Coprocessor Instructions */
-static void do_cdp PARAMS ((char *operands, unsigned long flags));
-static void do_lstc PARAMS ((char *operands, unsigned long flags));
-static void do_co_reg PARAMS ((char *operands, unsigned long flags));
-static void do_fp_ctrl PARAMS ((char *operands, unsigned long flags));
-static void do_fp_ldst PARAMS ((char *operands, unsigned long flags));
-static void do_fp_ldmstm PARAMS ((char *operands, unsigned long flags));
-static void do_fp_dyadic PARAMS ((char *operands, unsigned long flags));
-static void do_fp_monadic PARAMS ((char *operands, unsigned long flags));
-static void do_fp_cmp PARAMS ((char *operands, unsigned long flags));
-static void do_fp_from_reg PARAMS ((char *operands, unsigned long flags));
-static void do_fp_to_reg PARAMS ((char *operands, unsigned long flags));
-
-static void fix_new_arm PARAMS ((fragS *frag, int where,
- short int size, expressionS *exp,
- int pc_rel, int reloc));
-static int arm_reg_parse PARAMS ((char **ccp));
-static int arm_psr_parse PARAMS ((char **ccp));
-static void symbol_locate PARAMS ((symbolS *, CONST char *, segT,
- valueT, fragS *));
+static void do_arit PARAMS ((char *, unsigned long));
+static void do_cmp PARAMS ((char *, unsigned long));
+static void do_mov PARAMS ((char *, unsigned long));
+static void do_ldst PARAMS ((char *, unsigned long));
+static void do_ldmstm PARAMS ((char *, unsigned long));
+static void do_branch PARAMS ((char *, unsigned long));
+static void do_swi PARAMS ((char *, unsigned long));
+/* Pseudo Op codes */
+static void do_adr PARAMS ((char *, unsigned long));
+static void do_adrl PARAMS ((char *, unsigned long));
+static void do_nop PARAMS ((char *, unsigned long));
+/* ARM 2 */
+static void do_mul PARAMS ((char *, unsigned long));
+static void do_mla PARAMS ((char *, unsigned long));
+/* ARM 3 */
+static void do_swap PARAMS ((char *, unsigned long));
+/* ARM 6 */
+static void do_msr PARAMS ((char *, unsigned long));
+static void do_mrs PARAMS ((char *, unsigned long));
+/* ARM 7M */
+static void do_mull PARAMS ((char *, unsigned long));
+/* ARM THUMB */
+static void do_bx PARAMS ((char *, unsigned long));
+
+/* Coprocessor Instructions */
+static void do_cdp PARAMS ((char *, unsigned long));
+static void do_lstc PARAMS ((char *, unsigned long));
+static void do_co_reg PARAMS ((char *, unsigned long));
+static void do_fp_ctrl PARAMS ((char *, unsigned long));
+static void do_fp_ldst PARAMS ((char *, unsigned long));
+static void do_fp_ldmstm PARAMS ((char *, unsigned long));
+static void do_fp_dyadic PARAMS ((char *, unsigned long));
+static void do_fp_monadic PARAMS ((char *, unsigned long));
+static void do_fp_cmp PARAMS ((char *, unsigned long));
+static void do_fp_from_reg PARAMS ((char *, unsigned long));
+static void do_fp_to_reg PARAMS ((char *, unsigned long));
+
+static void fix_new_arm PARAMS ((fragS *, int, short, expressionS *, int, int));
+static int arm_reg_parse PARAMS ((char **));
+static int arm_psr_parse PARAMS ((char **));
+static void symbol_locate PARAMS ((symbolS *, CONST char *, segT, valueT, fragS *));
static int add_to_lit_pool PARAMS ((void));
-static int validate_immediate PARAMS ((int));
-static int validate_offset_imm PARAMS ((int, int));
+static unsigned validate_immediate PARAMS ((unsigned));
+static unsigned validate_immediate_twopart PARAMS ((unsigned int, unsigned int *));
+static int validate_offset_imm PARAMS ((unsigned int, int));
static void opcode_select PARAMS ((int));
static void end_of_line PARAMS ((char *));
static int reg_required_here PARAMS ((char **, int));
-static int psr_required_here PARAMS ((char **, int));
-static int psrf_required_here PARAMS ((char **, int));
+static int psr_required_here PARAMS ((char **, int, int));
static int co_proc_number PARAMS ((char **));
static int cp_opc_expr PARAMS ((char **, int, int));
static int cp_reg_required_here PARAMS ((char **, int));
static int my_get_float_expression PARAMS ((char **));
static int skip_past_comma PARAMS ((char **));
static int walk_no_bignums PARAMS ((symbolS *));
-static int negate_data_op PARAMS ((unsigned long *,
- unsigned long));
+static int negate_data_op PARAMS ((unsigned long *, unsigned long));
static int data_op2 PARAMS ((char **));
static int fp_op2 PARAMS ((char **));
static long reg_list PARAMS ((char **));
static void set_constant_flonums PARAMS ((void));
static valueT md_chars_to_number PARAMS ((char *, int));
static void insert_reg_alias PARAMS ((char *, int));
-static void output_inst PARAMS ((char *));
+static void output_inst PARAMS ((void));
+#ifdef OBJ_ELF
+static bfd_reloc_code_real_type arm_parse_reloc PARAMS ((void));
+#endif
/* ARM instructions take 4bytes in the object file, Thumb instructions
take 2: */
struct asm_opcode
{
- CONST char *template; /* Basic string to match */
- unsigned long value; /* Basic instruction code */
- CONST char *comp_suffix; /* Compulsory suffix that must follow conds */
- CONST struct asm_flg *flags; /* Bits to toggle if flag 'n' set */
- unsigned long variants; /* Which CPU variants this exists for */
+ CONST char * template; /* Basic string to match */
+ unsigned long value; /* Basic instruction code */
+ CONST char * comp_suffix; /* Compulsory suffix that must follow conds */
+ CONST struct asm_flg * flags; /* Bits to toggle if flag 'n' set */
+ unsigned long variants; /* Which CPU variants this exists for */
/* Function to call to parse args */
- void (*parms) PARAMS ((char *, unsigned long));
+ void (* parms) PARAMS ((char *, unsigned long));
};
static CONST struct asm_opcode insns[] =
/* Pseudo ops */
{"adr", 0x028f0000, NULL, NULL, ARM_ANY, do_adr},
+ {"adrl", 0x028f0000, NULL, NULL, ARM_ANY, do_adrl},
{"nop", 0x01a00000, NULL, NULL, ARM_ANY, do_nop},
/* ARM 2 multiplies */
/* ARM 6 Coprocessor instructions */
{"mrs", 0x010f0000, NULL, NULL, ARM_6UP, do_mrs},
- {"msr", 0x0128f000, NULL, NULL, ARM_6UP, do_msr},
+ {"msr", 0x0120f000, NULL, NULL, ARM_6UP, do_msr},
+/* ScottB: our code uses 0x0128f000 for msr.
+ NickC: but this is wrong because the bits 16 and 19 are handled
+ by the PSR_xxx defines above. */
/* ARM 7M long multiplies - need signed/unsigned flags! */
{"smull", 0x00c00090, NULL, s_flag, ARM_LONGMUL, do_mull},
#define OPCODE_BIC 14
#define OPCODE_MVN 15
-static void do_t_nop PARAMS ((char *operands));
-static void do_t_arit PARAMS ((char *operands));
-static void do_t_add PARAMS ((char *operands));
-static void do_t_asr PARAMS ((char *operands));
-static void do_t_branch9 PARAMS ((char *operands));
-static void do_t_branch12 PARAMS ((char *operands));
-static void do_t_branch23 PARAMS ((char *operands));
-static void do_t_bx PARAMS ((char *operands));
-static void do_t_compare PARAMS ((char *operands));
-static void do_t_ldmstm PARAMS ((char *operands));
-static void do_t_ldr PARAMS ((char *operands));
-static void do_t_ldrb PARAMS ((char *operands));
-static void do_t_ldrh PARAMS ((char *operands));
-static void do_t_lds PARAMS ((char *operands));
-static void do_t_lsl PARAMS ((char *operands));
-static void do_t_lsr PARAMS ((char *operands));
-static void do_t_mov PARAMS ((char *operands));
-static void do_t_push_pop PARAMS ((char *operands));
-static void do_t_str PARAMS ((char *operands));
-static void do_t_strb PARAMS ((char *operands));
-static void do_t_strh PARAMS ((char *operands));
-static void do_t_sub PARAMS ((char *operands));
-static void do_t_swi PARAMS ((char *operands));
-static void do_t_adr PARAMS ((char *operands));
+static void do_t_nop PARAMS ((char *));
+static void do_t_arit PARAMS ((char *));
+static void do_t_add PARAMS ((char *));
+static void do_t_asr PARAMS ((char *));
+static void do_t_branch9 PARAMS ((char *));
+static void do_t_branch12 PARAMS ((char *));
+static void do_t_branch23 PARAMS ((char *));
+static void do_t_bx PARAMS ((char *));
+static void do_t_compare PARAMS ((char *));
+static void do_t_ldmstm PARAMS ((char *));
+static void do_t_ldr PARAMS ((char *));
+static void do_t_ldrb PARAMS ((char *));
+static void do_t_ldrh PARAMS ((char *));
+static void do_t_lds PARAMS ((char *));
+static void do_t_lsl PARAMS ((char *));
+static void do_t_lsr PARAMS ((char *));
+static void do_t_mov PARAMS ((char *));
+static void do_t_push_pop PARAMS ((char *));
+static void do_t_str PARAMS ((char *));
+static void do_t_strb PARAMS ((char *));
+static void do_t_strh PARAMS ((char *));
+static void do_t_sub PARAMS ((char *));
+static void do_t_swi PARAMS ((char *));
+static void do_t_adr PARAMS ((char *));
#define T_OPCODE_MUL 0x4340
#define T_OPCODE_TST 0x4200
#define T_OPCODE_BRANCH 0xe7fe
-static int thumb_reg PARAMS ((char **str, int hi_lo));
+static int thumb_reg PARAMS ((char ** str, int hi_lo));
#define THUMB_SIZE 2 /* Size of thumb instruction */
#define THUMB_REG_LO 0x1
struct thumb_opcode
{
- CONST char *template; /* Basic string to match */
+ CONST char * template; /* Basic string to match */
unsigned long value; /* Basic instruction code */
- int size;
- /* Function to call to parse args */
- void (*parms) PARAMS ((char *));
+ int size;
+ void (* parms) PARAMS ((char *)); /* Function to call to parse args */
};
static CONST struct thumb_opcode tinsns[] =
struct reg_entry
{
- CONST char *name;
- int number;
+ CONST char * name;
+ int number;
};
#define int_register(reg) ((reg) >= 0 && (reg) <= 15)
{NULL, 0}
};
-static CONST char *bad_args = "Bad arguments to instruction";
-static CONST char *bad_pc = "r15 not allowed here";
+#define bad_args _("Bad arguments to instruction");
+#define bad_pc _("r15 not allowed here");
-static struct hash_control *arm_ops_hsh = NULL;
-static struct hash_control *arm_tops_hsh = NULL;
-static struct hash_control *arm_cond_hsh = NULL;
-static struct hash_control *arm_shift_hsh = NULL;
-static struct hash_control *arm_reg_hsh = NULL;
-static struct hash_control *arm_psr_hsh = NULL;
+static struct hash_control * arm_ops_hsh = NULL;
+static struct hash_control * arm_tops_hsh = NULL;
+static struct hash_control * arm_cond_hsh = NULL;
+static struct hash_control * arm_shift_hsh = NULL;
+static struct hash_control * arm_reg_hsh = NULL;
+static struct hash_control * arm_psr_hsh = NULL;
/* This table describes all the machine specific pseudo-ops the assembler
has to support. The fields are:
static void s_arm PARAMS ((int));
static void s_thumb PARAMS ((int));
static void s_code PARAMS ((int));
+static void s_force_thumb PARAMS ((int));
+static void s_thumb_func PARAMS ((int));
+static void s_thumb_set PARAMS ((int));
+static void arm_s_text PARAMS ((int));
+static void arm_s_data PARAMS ((int));
+#ifdef OBJ_ELF
+static void arm_s_section PARAMS ((int));
+static void s_arm_elf_cons PARAMS ((int));
+#endif
static int my_get_expression PARAMS ((expressionS *, char **));
CONST pseudo_typeS md_pseudo_table[] =
{
- {"req", s_req, 0}, /* Never called becasue '.req' does not start line */
- {"bss", s_bss, 0},
- {"align", s_align, 0},
- {"arm", s_arm, 0},
- {"thumb", s_thumb, 0},
- {"code", s_code, 0},
- {"even", s_even, 0},
- {"ltorg", s_ltorg, 0},
- {"pool", s_ltorg, 0},
- {"word", cons, 4},
- {"extend", float_cons, 'x'},
- {"ldouble", float_cons, 'x'},
- {"packed", float_cons, 'p'},
- {0, 0, 0}
+ { "req", s_req, 0 }, /* Never called becasue '.req' does not start line */
+ { "bss", s_bss, 0 },
+ { "align", s_align, 0 },
+ { "arm", s_arm, 0 },
+ { "thumb", s_thumb, 0 },
+ { "code", s_code, 0 },
+ { "force_thumb", s_force_thumb, 0 },
+ { "thumb_func", s_thumb_func, 0 },
+ { "thumb_set", s_thumb_set, 0 },
+ { "even", s_even, 0 },
+ { "ltorg", s_ltorg, 0 },
+ { "pool", s_ltorg, 0 },
+ /* Allow for the effect of section changes. */
+ { "text", arm_s_text, 0 },
+ { "data", arm_s_data, 0 },
+#ifdef OBJ_ELF
+ { "section", arm_s_section, 0 },
+ { "section.s", arm_s_section, 0 },
+ { "sect", arm_s_section, 0 },
+ { "sect.s", arm_s_section, 0 },
+ { "word", s_arm_elf_cons, 4 },
+ { "long", s_arm_elf_cons, 4 },
+#else
+ { "word", cons, 4},
+#endif
+ { "extend", float_cons, 'x' },
+ { "ldouble", float_cons, 'x' },
+ { "packed", float_cons, 'p' },
+ { 0, 0, 0 }
};
/* Stuff needed to resolve the label ambiguity
<insn>
*/
-symbolS *last_label_seen;
+symbolS * last_label_seen;
+static int label_is_thumb_function_name = false;
/* Literal stuff */
typedef struct literalS
{
struct expressionS exp;
- struct arm_it *inst;
+ struct arm_it * inst;
} literalT;
-literalT literals[MAX_LITERAL_POOL_SIZE];
-int next_literal_pool_place = 0; /* Next free entry in the pool */
-int lit_pool_num = 1; /* Next literal pool number */
-symbolS *current_poolP = NULL;
-symbolS *symbol_make_empty PARAMS ((void));
+literalT literals[MAX_LITERAL_POOL_SIZE];
+int next_literal_pool_place = 0; /* Next free entry in the pool */
+int lit_pool_num = 1; /* Next literal pool number */
+symbolS * current_poolP = NULL;
static int
add_to_lit_pool ()
int lit_count = 0;
if (current_poolP == NULL)
- current_poolP = symbol_make_empty();
+ current_poolP = symbol_create (FAKE_LABEL_NAME, undefined_section,
+ (valueT) 0, &zero_address_frag);
/* Check if this literal value is already in the pool: */
while (lit_count < next_literal_pool_place)
{
if (next_literal_pool_place > MAX_LITERAL_POOL_SIZE)
{
- inst.error = "Literal Pool Overflow\n";
+ inst.error = _("Literal Pool Overflow");
return FAIL;
}
}
inst.reloc.exp.X_op = O_symbol;
- inst.reloc.exp.X_add_number = (lit_count)*4-8;
+ inst.reloc.exp.X_add_number = (lit_count) * 4 - 8;
inst.reloc.exp.X_add_symbol = current_poolP;
return SUCCESS;
}
/* Can't use symbol_new here, so have to create a symbol and then at
- a later date assign it a value. Thats what these functions do */
+ a later date assign it a value. Thats what these functions do. */
static void
symbol_locate (symbolP, name, segment, valu, frag)
- symbolS *symbolP;
- CONST char *name; /* It is copied, the caller can modify */
- segT segment; /* Segment identifier (SEG_<something>) */
- valueT valu; /* Symbol value */
- fragS *frag; /* Associated fragment */
+ symbolS * symbolP;
+ CONST char * name; /* It is copied, the caller can modify */
+ segT segment; /* Segment identifier (SEG_<something>) */
+ valueT valu; /* Symbol value */
+ fragS * frag; /* Associated fragment */
{
unsigned int name_length;
- char *preserved_copy_of_name;
+ char * preserved_copy_of_name;
name_length = strlen (name) + 1; /* +1 for \0 */
obstack_grow (¬es, name, name_length);
S_SET_VALUE (symbolP, valu);
symbol_clear_list_pointers(symbolP);
- symbolP->sy_frag = frag;
+ symbol_set_frag (symbolP, frag);
- /*
- * Link to end of symbol chain.
- */
+ /* Link to end of symbol chain. */
{
extern int symbol_table_frozen;
if (symbol_table_frozen)
abort ();
}
- symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP);
+ symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
obj_symbol_new_hook (symbolP);
#endif
#ifdef DEBUG_SYMS
- verify_symbol_chain(symbol_rootP, symbol_lastP);
+ verify_symbol_chain (symbol_rootP, symbol_lastP);
#endif /* DEBUG_SYMS */
}
-symbolS *
-symbol_make_empty ()
-{
- symbolS *symbolP;
-
- symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS));
-
- /* symbol must be born in some fixed state. This seems as good as any. */
- memset (symbolP, 0, sizeof (symbolS));
+/* Check that an immediate is valid, and if so, convert it to the right format. */
- symbolP->bsym = bfd_make_empty_symbol (stdoutput);
- assert (symbolP->bsym != 0);
- symbolP->bsym->udata.p = (PTR) symbolP;
-
- return symbolP;
+static unsigned int
+validate_immediate (val)
+ unsigned int val;
+{
+ unsigned int a;
+ unsigned int i;
+
+#define rotate_left(v, n) (v << n | v >> (32 - n))
+
+ for (i = 0; i < 32; i += 2)
+ if ((a = rotate_left (val, i)) <= 0xff)
+ return a | (i << 7); /* 12-bit pack: [shift-cnt,const] */
+
+ return FAIL;
}
-/* Check that an immediate is valid, and if so, convert it to the right format
- */
-
-/* OH, for a rotate instruction in C! */
+/* Check to see if an immediate can be computed as two seperate immediate
+ values, added together. We already know that this value cannot be
+ computed by just one ARM instruction. */
-static int
-validate_immediate (val)
- int val;
+static unsigned int
+validate_immediate_twopart (val, highpart)
+ unsigned int val;
+ unsigned int * highpart;
{
- unsigned int a = (unsigned int) val;
- int i;
+ unsigned int a;
+ unsigned int i;
+
+ for (i = 0; i < 32; i += 2)
+ if (((a = rotate_left (val, i)) & 0xff) != 0)
+ {
+ if (a & 0xff00)
+ {
+ if (a & ~ 0xffff)
+ continue;
+ * highpart = (a >> 8) | ((i + 24) << 7);
+ }
+ else if (a & 0xff0000)
+ {
+ if (a & 0xff000000)
+ continue;
+
+ * highpart = (a >> 16) | ((i + 16) << 7);
+ }
+ else
+ {
+ assert (a & 0xff000000);
+
+ * highpart = (a >> 24) | ((i + 8) << 7);
+ }
+
+ return (a & 0xff) | (i << 7);
+ }
- /* Do the easy (and most common ones) quickly */
- for (i = 0; i <= 24; i += 2)
- {
- if ((a & (0xff << i)) == a)
- return (int) (((32 - i) & 0x1e) << 7) | ((a >> i) & 0xff);
- }
-
- /* Now do the harder ones */
- for (; i < 32; i += 2)
- {
- if ((a & ((0xff << i) | (0xff >> (32 - i)))) == a)
- {
- a = ((a >> i) & 0xff) | ((a << (32 - i)) & 0xff);
- return (int) a | (((32 - i) >> 1) << 8);
- }
- }
return FAIL;
}
static int
validate_offset_imm (val, hwse)
- int val;
+ unsigned int val;
int hwse;
{
- if ((hwse && (val < -255 || val > 255))
- || (val < -4095 || val > 4095))
+ if ((hwse && val > 255) || val > 4095)
return FAIL;
return val;
}
s_req (a)
int a;
{
- as_bad ("Invalid syntax for .req directive.");
+ as_bad (_("Invalid syntax for .req directive."));
}
static void
{
if (!need_pass_2) /* Never make frag if expect extra pass. */
frag_align (1, 0, 0);
+
record_alignment (now_seg, 1);
+
demand_empty_rest_of_line ();
}
static void
-s_ltorg (internal)
- int internal;
+s_ltorg (ignored)
+ int ignored;
{
int lit_count = 0;
char sym_name[20];
if (current_poolP == NULL)
- {
- /* Nothing to do */
- if (!internal)
- as_tsktsk ("Nothing to put in the pool\n");
- return;
- }
+ return;
/* Align pool as you have word accesses */
/* Only make a frag if we have to ... */
record_alignment (now_seg, 2);
- if (internal)
- as_tsktsk ("Inserting implicit pool at change of section");
-
sprintf (sym_name, "$$lit_\002%x", lit_pool_num++);
symbol_locate (current_poolP, sym_name, now_seg,
(valueT) frag_now_fix (), frag_now);
symbol_table_insert (current_poolP);
+ ARM_SET_THUMB (current_poolP, thumb_mode);
+
+#if defined OBJ_COFF || defined OBJ_ELF
+ ARM_SET_INTERWORK (current_poolP, support_interwork);
+#endif
+
while (lit_count < next_literal_pool_place)
/* First output the expression in the instruction to the pool */
emit_expr (&(literals[lit_count++].exp), 4); /* .word */
current_poolP = NULL;
}
-#if 0 /* not used */
-static void
-arm_align (power, fill)
- int power;
- int fill;
-{
- /* Only make a frag if we HAVE to ... */
- if (power && !need_pass_2)
- frag_align (power, fill, 0);
-
- record_alignment (now_seg, power);
-}
-#endif
-
static void
s_align (unused) /* Same as s_align_ptwo but align 0 => align 2 */
int unused;
temp = get_absolute_expression ();
if (temp > max_alignment)
- as_bad ("Alignment too large: %d. assumed.", temp = max_alignment);
+ as_bad (_("Alignment too large: %d. assumed."), temp = max_alignment);
else if (temp < 0)
{
- as_bad ("Alignment negative. 0 assumed.");
+ as_bad (_("Alignment negative. 0 assumed."));
temp = 0;
}
record_alignment (now_seg, temp);
}
+static void
+s_force_thumb (ignore)
+ int ignore;
+{
+ /* If we are not already in thumb mode go into it, EVEN if
+ the target processor does not support thumb instructions.
+ This is used by gcc/config/arm/lib1funcs.asm for example
+ to compile interworking support functions even if the
+ target processor should not support interworking. */
+
+ if (! thumb_mode)
+ {
+ thumb_mode = 1;
+
+ record_alignment (now_seg, 1);
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+s_thumb_func (ignore)
+ int ignore;
+{
+ /* The following label is the name/address of the start of a Thumb function.
+ We need to know this for the interworking support. */
+
+ label_is_thumb_function_name = true;
+
+ demand_empty_rest_of_line ();
+}
+
+/* Perform a .set directive, but also mark the alias as
+ being a thumb function. */
+
+static void
+s_thumb_set (equiv)
+ int equiv;
+{
+ /* XXX the following is a duplicate of the code for s_set() in read.c
+ We cannot just call that code as we need to get at the symbol that
+ is created. */
+ register char * name;
+ register char delim;
+ register char * end_name;
+ register symbolS * symbolP;
+
+ /*
+ * Especial apologies for the random logic:
+ * this just grew, and could be parsed much more simply!
+ * Dean in haste.
+ */
+ name = input_line_pointer;
+ delim = get_symbol_end ();
+ end_name = input_line_pointer;
+ *end_name = delim;
+
+ SKIP_WHITESPACE ();
+
+ if (*input_line_pointer != ',')
+ {
+ *end_name = 0;
+ as_bad (_("Expected comma after name \"%s\""), name);
+ *end_name = delim;
+ ignore_rest_of_line ();
+ return;
+ }
+
+ input_line_pointer++;
+ *end_name = 0;
+
+ if (name[0] == '.' && name[1] == '\0')
+ {
+ /* XXX - this should not happen to .thumb_set */
+ abort ();
+ }
+
+ if ((symbolP = symbol_find (name)) == NULL
+ && (symbolP = md_undefined_symbol (name)) == NULL)
+ {
+#ifndef NO_LISTING
+ /* When doing symbol listings, play games with dummy fragments living
+ outside the normal fragment chain to record the file and line info
+ for this symbol. */
+ if (listing & LISTING_SYMBOLS)
+ {
+ extern struct list_info_struct * listing_tail;
+ fragS * dummy_frag = (fragS *) xmalloc (sizeof(fragS));
+ memset (dummy_frag, 0, sizeof(fragS));
+ dummy_frag->fr_type = rs_fill;
+ dummy_frag->line = listing_tail;
+ symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
+ dummy_frag->fr_symbol = symbolP;
+ }
+ else
+#endif
+ symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
+
+#ifdef OBJ_COFF
+ /* "set" symbols are local unless otherwise specified. */
+ SF_SET_LOCAL (symbolP);
+#endif /* OBJ_COFF */
+ } /* make a new symbol */
+
+ symbol_table_insert (symbolP);
+
+ * end_name = delim;
+
+ if (equiv
+ && S_IS_DEFINED (symbolP)
+ && S_GET_SEGMENT (symbolP) != reg_section)
+ as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
+
+ pseudo_set (symbolP);
+
+ demand_empty_rest_of_line ();
+
+ /* XXX Now we come to the Thumb specific bit of code. */
+
+ THUMB_SET_FUNC (symbolP, 1);
+ ARM_SET_THUMB (symbolP, 1);
+ ARM_SET_INTERWORK (symbolP, support_interwork);
+}
+
+/* If we change section we must dump the literal pool first. */
+static void
+arm_s_text (ignore)
+ int ignore;
+{
+ if (now_seg != text_section)
+ s_ltorg (0);
+
+ s_text (ignore);
+}
+
+static void
+arm_s_data (ignore)
+ int ignore;
+{
+ if (flag_readonly_data_in_text)
+ {
+ if (now_seg != text_section)
+ s_ltorg (0);
+ }
+ else if (now_seg != data_section)
+ s_ltorg (0);
+
+ s_data (ignore);
+}
+
+#ifdef OBJ_ELF
+static void
+arm_s_section (ignore)
+ int ignore;
+{
+ s_ltorg (0);
+
+ obj_elf_section (ignore);
+}
+#endif
+
static void
opcode_select (width)
int width;
if (! thumb_mode)
{
if (! (cpu_variant & ARM_THUMB))
- as_bad ("selected processor does not support THUMB opcodes");
+ as_bad (_("selected processor does not support THUMB opcodes"));
thumb_mode = 1;
/* No need to force the alignment, since we will have been
coming from ARM mode, which is word-aligned. */
if (thumb_mode)
{
if ((cpu_variant & ARM_ANY) == ARM_THUMB)
- as_bad ("selected processor does not support ARM opcodes");
+ as_bad (_("selected processor does not support ARM opcodes"));
thumb_mode = 0;
if (!need_pass_2)
frag_align (2, 0, 0);
break;
default:
- as_bad ("invalid instruction size selected (%d)", width);
+ as_bad (_("invalid instruction size selected (%d)"), width);
}
}
{
case 16:
case 32:
- opcode_select(temp);
+ opcode_select (temp);
break;
default:
- as_bad ("invalid operand to .code directive (%d) (expecting 16 or 32)", temp);
+ as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
}
}
static void
end_of_line (str)
- char *str;
+ char * str;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
- if (*str != '\0')
- inst.error = "Garbage following instruction";
+ if (* str != '\0')
+ inst.error = _("Garbage following instruction");
}
static int
skip_past_comma (str)
- char **str;
+ char ** str;
{
char *p = *str, c;
int comma = 0;
static int
reg_required_here (str, shift)
- char **str;
- int shift;
+ char ** str;
+ int shift;
{
- int reg;
- char *start = *str;
+ static char buff [128]; /* XXX */
+ int reg;
+ char * start = *str;
if ((reg = arm_reg_parse (str)) != FAIL && int_register (reg))
{
- inst.instruction |= reg << shift;
+ if (shift >= 0)
+ inst.instruction |= reg << shift;
return reg;
}
- /* In the few cases where we might be able to accept something else
- this error can be overridden */
- inst.error = "Register expected";
-
/* Restore the start point, we may have got a reg of the wrong class. */
*str = start;
- return FAIL;
-}
-
-static int
-psr_required_here (str, shift)
- char **str;
- int shift;
-{
- int psr;
- char *start = *str;
-
- if ((psr = arm_psr_parse (str)) != FAIL && psr < 2)
- {
- if (psr == 1)
- inst.instruction |= 1 << shift; /* Should be bit 22 */
- return psr;
- }
-
+
/* In the few cases where we might be able to accept something else
- this error can be overridden */
- inst.error = "<psr> expected";
+ this error can be overridden. */
+ sprintf (buff, _("Register expected, not '%.100s'"), start);
+ inst.error = buff;
- /* Restore the start point. */
- *str = start;
return FAIL;
}
static int
-psrf_required_here (str, shift)
- char **str;
- int shift;
-{
- int psrf;
- char *start = *str;
-
- if ((psrf = arm_psr_parse (str)) != FAIL && psrf > 1)
+psr_required_here (str, cpsr, spsr)
+ char ** str;
+ int cpsr;
+ int spsr;
+{
+ int psr;
+ char * start = *str;
+ psr = arm_psr_parse (str);
+
+ if (psr == cpsr || psr == spsr)
{
- if (psrf == 1 || psrf == 3)
- inst.instruction |= 1 << shift; /* Should be bit 22 */
- return psrf;
+ if (psr == spsr)
+ inst.instruction |= 1 << 22;
+
+ return SUCCESS;
}
/* In the few cases where we might be able to accept something else
- this error can be overridden */
- inst.error = "<psrf> expected";
+ this error can be overridden. */
+ inst.error = _("<psr(f)> expected");
/* Restore the start point. */
*str = start;
static int
co_proc_number (str)
- char **str;
+ char ** str;
{
int processor, pchar;
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
/* The data sheet seems to imply that just a number on its own is valid
here, but the RISC iX assembler seems to accept a prefix 'p'. We will
processor = processor * 10 + *(*str)++ - '0';
if (processor > 15)
{
- inst.error = "Illegal co-processor number";
+ inst.error = _("Illegal co-processor number");
return FAIL;
}
}
}
else
{
- inst.error = "Bad or missing co-processor number";
+ inst.error = _("Bad or missing co-processor number");
return FAIL;
}
static int
cp_opc_expr (str, where, length)
- char **str;
+ char ** str;
int where;
int length;
{
expressionS expr;
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
memset (&expr, '\0', sizeof (expr));
return FAIL;
if (expr.X_op != O_constant)
{
- inst.error = "bad or missing expression";
+ inst.error = _("bad or missing expression");
return FAIL;
}
if ((expr.X_add_number & ((1 << length) - 1)) != expr.X_add_number)
{
- inst.error = "immediate co-processor expression too large";
+ inst.error = _("immediate co-processor expression too large");
return FAIL;
}
static int
cp_reg_required_here (str, where)
- char **str;
- int where;
+ char ** str;
+ int where;
{
- int reg;
- char *start = *str;
+ int reg;
+ char * start = *str;
if ((reg = arm_reg_parse (str)) != FAIL && cp_register (reg))
{
}
/* In the few cases where we might be able to accept something else
- this error can be overridden */
- inst.error = "Co-processor register expected";
+ this error can be overridden. */
+ inst.error = _("Co-processor register expected");
- /* Restore the start point */
+ /* Restore the start point. */
*str = start;
return FAIL;
}
static int
fp_reg_required_here (str, where)
- char **str;
- int where;
+ char ** str;
+ int where;
{
int reg;
- char *start = *str;
+ char * start = *str;
if ((reg = arm_reg_parse (str)) != FAIL && fp_register (reg))
{
}
/* In the few cases where we might be able to accept something else
- this error can be overridden */
- inst.error = "Floating point register expected";
+ this error can be overridden. */
+ inst.error = _("Floating point register expected");
- /* Restore the start point */
+ /* Restore the start point. */
*str = start;
return FAIL;
}
static int
cp_address_offset (str)
- char **str;
+ char ** str;
{
int offset;
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
- if (**str != '#')
+ if (! is_immediate_prefix (**str))
{
- inst.error = "immediate expression expected";
+ inst.error = _("immediate expression expected");
return FAIL;
}
(*str)++;
- if (my_get_expression (&inst.reloc.exp, str))
+
+ if (my_get_expression (& inst.reloc.exp, str))
return FAIL;
+
if (inst.reloc.exp.X_op == O_constant)
{
offset = inst.reloc.exp.X_add_number;
+
if (offset & 3)
{
- inst.error = "co-processor address must be word aligned";
+ inst.error = _("co-processor address must be word aligned");
return FAIL;
}
if (offset > 1023 || offset < -1023)
{
- inst.error = "offset too large";
+ inst.error = _("offset too large");
return FAIL;
}
static int
cp_address_required_here (str)
- char **str;
+ char ** str;
{
- char *p = *str;
- int pre_inc = 0;
- int write_back = 0;
+ char * p = * str;
+ int pre_inc = 0;
+ int write_back = 0;
if (*p == '[')
{
int reg;
p++;
- while (*p == ' ')
- p++;
+ skip_whitespace (p);
- if ((reg = reg_required_here (&p, 16)) == FAIL)
- {
- inst.error = "Register required";
- return FAIL;
- }
+ if ((reg = reg_required_here (& p, 16)) == FAIL)
+ return FAIL;
- while (*p == ' ')
- p++;
+ skip_whitespace (p);
if (*p == ']')
{
p++;
- if (skip_past_comma (&p) == SUCCESS)
+
+ if (skip_past_comma (& p) == SUCCESS)
{
/* [Rn], #expr */
write_back = WRITE_BACK;
+
if (reg == REG_PC)
{
- inst.error = "pc may not be used in post-increment";
+ inst.error = _("pc may not be used in post-increment");
return FAIL;
}
- if (cp_address_offset (&p) == FAIL)
+ if (cp_address_offset (& p) == FAIL)
return FAIL;
}
else
{
/* '['Rn, #expr']'[!] */
- if (skip_past_comma (&p) == FAIL)
+ if (skip_past_comma (& p) == FAIL)
{
- inst.error = "pre-indexed expression expected";
+ inst.error = _("pre-indexed expression expected");
return FAIL;
}
pre_inc = PRE_INDEX;
- if (cp_address_offset (&p) == FAIL)
+
+ if (cp_address_offset (& p) == FAIL)
return FAIL;
- while (*p == ' ')
- p++;
+ skip_whitespace (p);
if (*p++ != ']')
{
- inst.error = "missing ]";
+ inst.error = _("missing ]");
return FAIL;
}
- while (*p == ' ')
- p++;
+ skip_whitespace (p);
if (*p == '!')
{
if (reg == REG_PC)
{
- inst.error = "pc may not be used with write-back";
+ inst.error = _("pc may not be used with write-back");
return FAIL;
}
static void
do_nop (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- /* Do nothing really */
- inst.instruction |= flags; /* This is pointless */
+ /* Do nothing really. */
+ inst.instruction |= flags; /* This is pointless. */
end_of_line (str);
return;
}
char *str;
unsigned long flags;
{
- /* Only one syntax */
- while (*str == ' ')
- str++;
+ /* Only one syntax. */
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL)
{
}
if (skip_past_comma (&str) == FAIL
- || psr_required_here (&str, 22) == FAIL)
+ || psr_required_here (& str, CPSR_ALL, SPSR_ALL) == FAIL)
{
- inst.error = "<psr> expected";
+ inst.error = _("<psr> expected");
return;
}
return;
}
+/* Three possible forms: "<psr>, Rm", "<psrf>, Rm", "<psrf>, #expression". */
static void
do_msr (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- int psr, psrf, reg;
- /* Three possible forms: "<psr>, Rm", "<psrf>, Rm", "<psrf>, #expression" */
+ int reg;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
- if ((psr = psr_required_here (&str, 22)) != FAIL)
+ if (psr_required_here (&str, CPSR_ALL, SPSR_ALL) == SUCCESS)
{
inst.instruction |= PSR_ALL;
+
/* Sytax should be "<psr>, Rm" */
if (skip_past_comma (&str) == FAIL
|| (reg = reg_required_here (&str, 0)) == FAIL)
return;
}
}
- else if ((psrf = psrf_required_here (&str, 22)) != FAIL)
- /* Syntax could be "<psrf>, rm", "<psrf>, #expression" */
+ else
{
+ if (psr_required_here (& str, CPSR_FLG, SPSR_FLG) == SUCCESS)
+ inst.instruction |= PSR_FLAGS;
+ else if (psr_required_here (& str, CPSR_CTL, SPSR_CTL) == SUCCESS)
+ inst.instruction |= PSR_CONTROL;
+ else
+ {
+ inst.error = bad_args;
+ return;
+ }
+
if (skip_past_comma (&str) == FAIL)
{
inst.error = bad_args;
return;
}
- if ((reg = reg_required_here (&str, 0)) != FAIL)
+
+ /* Syntax could be "<psrf>, rm", "<psrf>, #expression" */
+
+ if ((reg = reg_required_here (& str, 0)) != FAIL)
;
- /* Immediate expression */
- else if (*(str++) == '#')
+ /* Immediate expression. */
+ else if (is_immediate_prefix (* str))
{
+ str ++;
inst.error = NULL;
- if (my_get_expression (&inst.reloc.exp, &str))
+
+ if (my_get_expression (& inst.reloc.exp, & str))
{
- inst.error = "Register or shift expression expected";
+ inst.error = _("Register or shift expression expected");
return;
}
}
else
{
- int value = validate_immediate (inst.reloc.exp.X_add_number);
+ unsigned value = validate_immediate (inst.reloc.exp.X_add_number);
if (value == FAIL)
{
- inst.error = "Invalid constant";
+ inst.error = _("Invalid constant");
return;
}
}
else
{
- inst.error = "Error: the other";
+ inst.error = _("Error: unrecognised syntax for second argument to msr instruction");
return;
}
}
- else
- {
- inst.error = bad_args;
- return;
- }
-
+
inst.error = NULL;
inst.instruction |= flags;
end_of_line (str);
*/
static void
do_mull (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int rdlo, rdhi, rm, rs;
- /* only one format "rdlo, rdhi, rm, rs" */
- while (*str == ' ')
- str++;
+ /* Only one format "rdlo, rdhi, rm, rs" */
+ skip_whitespace (str);
if ((rdlo = reg_required_here (&str, 12)) == FAIL)
{
/* rdhi, rdlo and rm must all be different */
if (rdlo == rdhi || rdlo == rm || rdhi == rm)
- as_tsktsk ("rdhi, rdlo and rm must all be different");
+ as_tsktsk (_("rdhi, rdlo and rm must all be different"));
if (skip_past_comma (&str) == FAIL
|| (rs = reg_required_here (&str, 8)) == FAIL)
static void
do_mul (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int rd, rm;
- /* only one format "rd, rm, rs" */
- while (*str == ' ')
- str++;
+ /* Only one format "rd, rm, rs" */
+ skip_whitespace (str);
if ((rd = reg_required_here (&str, 16)) == FAIL)
{
}
if (rm == rd)
- as_tsktsk ("rd and rm should be different in mul");
+ as_tsktsk (_("rd and rm should be different in mul"));
if (skip_past_comma (&str) == FAIL
|| (rm = reg_required_here (&str, 8)) == FAIL)
static void
do_mla (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int rd, rm;
- /* only one format "rd, rm, rs, rn" */
- while (*str == ' ')
- str++;
+ /* Only one format "rd, rm, rs, rn" */
+ skip_whitespace (str);
if ((rd = reg_required_here (&str, 16)) == FAIL)
{
}
if (rm == rd)
- as_tsktsk ("rd and rm should be different in mla");
+ as_tsktsk (_("rd and rm should be different in mla"));
if (skip_past_comma (&str) == FAIL
|| (rd = reg_required_here (&str, 8)) == FAIL
not in the table. */
static int
my_get_float_expression (str)
- char **str;
+ char ** str;
{
LITTLENUM_TYPE words[MAX_LITTLENUMS];
- char *save_in;
- expressionS exp;
- int i, j;
+ char * save_in;
+ expressionS exp;
+ int i;
+ int j;
memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
/* Look for a raw floating point number */
/* Return true if anything in the expression is a bignum */
static int
walk_no_bignums (sp)
- symbolS *sp;
+ symbolS * sp;
{
- if (sp->sy_value.X_op == O_big)
+ if (symbol_get_value_expression (sp)->X_op == O_big)
return 1;
- if (sp->sy_value.X_add_symbol)
+ if (symbol_get_value_expression (sp)->X_add_symbol)
{
- return (walk_no_bignums (sp->sy_value.X_add_symbol)
- || (sp->sy_value.X_op_symbol
- && walk_no_bignums (sp->sy_value.X_op_symbol)));
+ return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
+ || (symbol_get_value_expression (sp)->X_op_symbol
+ && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
}
return 0;
static int
my_get_expression (ep, str)
- expressionS *ep;
- char **str;
+ expressionS * ep;
+ char ** str;
{
- char *save_in;
- segT seg;
+ char * save_in;
+ segT seg;
save_in = input_line_pointer;
input_line_pointer = *str;
&& seg != bss_section
&& seg != undefined_section)
{
- inst.error = "bad_segment";
+ inst.error = _("bad_segment");
*str = input_line_pointer;
input_line_pointer = save_in;
return 1;
|| (ep->X_op_symbol
&& walk_no_bignums (ep->X_op_symbol)))))
{
- inst.error = "Invalid constant";
+ inst.error = _("Invalid constant");
*str = input_line_pointer;
input_line_pointer = save_in;
return 1;
static int
decode_shift (str, unrestrict)
- char **str;
- int unrestrict;
+ char ** str;
+ int unrestrict;
{
- struct asm_shift *shft;
- char *p;
- char c;
+ struct asm_shift * shft;
+ char * p;
+ char c;
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
for (p = *str; isalpha (*p); p++)
;
if (p == *str)
{
- inst.error = "Shift expression expected";
+ inst.error = _("Shift expression expected");
return FAIL;
}
*p = c;
if (shft)
{
- if (!strcmp (*str, "rrx")
- || !strcmp (*str, "RRX"))
+ if (!strncmp (*str, "rrx", 3)
+ || !strncmp (*str, "RRX", 3))
{
*str = p;
inst.instruction |= shft->value;
return SUCCESS;
}
- while (*p == ' ')
- p++;
-
+ skip_whitespace (p);
+
if (unrestrict && reg_required_here (&p, 8) != FAIL)
{
inst.instruction |= shft->value | SHIFT_BY_REG;
*str = p;
return SUCCESS;
}
- else if (*p == '#')
+ else if (is_immediate_prefix (* p))
{
inst.error = NULL;
p++;
/* Reject operations greater than 32, or lsl #32 */
if (num > 32 || (num == 32 && shft->value == 0))
{
- inst.error = "Invalid immediate shift";
+ inst.error = _("Invalid immediate shift");
return FAIL;
}
}
else
{
- inst.error = unrestrict ? "shift requires register or #expression"
- : "shift requires #expression";
+ inst.error = unrestrict ? _("shift requires register or #expression")
+ : _("shift requires #expression");
*str = p;
return FAIL;
}
}
- inst.error = "Shift expression expected";
+ inst.error = _("Shift expression expected");
return FAIL;
}
*/
static int
negate_data_op (instruction, value)
- unsigned long *instruction;
- unsigned long value;
+ unsigned long * instruction;
+ unsigned long value;
{
int op, new_inst;
unsigned long negated, inverted;
static int
data_op2 (str)
- char **str;
+ char ** str;
{
int value;
expressionS expr;
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
if (reg_required_here (str, 0) != FAIL)
{
if (skip_past_comma (str) == SUCCESS)
- {
- /* Shift operation on register */
- return decode_shift (str, NO_SHIFT_RESTRICT);
- }
+ /* Shift operation on register. */
+ return decode_shift (str, NO_SHIFT_RESTRICT);
+
return SUCCESS;
}
else
{
/* Immediate expression */
- if (*((*str)++) == '#')
+ if (is_immediate_prefix (**str))
{
+ (*str)++;
inst.error = NULL;
+
if (my_get_expression (&inst.reloc.exp, str))
return FAIL;
if (expr.X_op != O_constant)
{
- inst.error = "Constant expression expected";
+ inst.error = _("Constant expression expected");
return FAIL;
}
|| (expr.X_add_number & 1) != 0
|| ((unsigned) inst.reloc.exp.X_add_number) > 255)
{
- inst.error = "Invalid constant";
+ inst.error = _("Invalid constant");
return FAIL;
}
inst.instruction |= INST_IMMEDIATE;
inst.reloc.exp.X_add_number))
== FAIL)
{
- inst.error = "Invalid constant";
+ inst.error = _("Invalid constant");
return FAIL;
}
}
return SUCCESS;
}
- inst.error = "Register or shift expression expected";
+ (*str)++;
+ inst.error = _("Register or shift expression expected");
return FAIL;
}
}
static int
fp_op2 (str)
- char **str;
+ char ** str;
{
- while (**str == ' ')
- (*str)++;
+ skip_whitespace (* str);
if (fp_reg_required_here (str, 0) != FAIL)
return SUCCESS;
int i;
inst.error = NULL;
- while (**str == ' ')
- (*str)++;
+
+ skip_whitespace (* str);
/* First try and match exact strings, this is to guarantee that
some formats will work even for cross assembly */
return SUCCESS;
}
- inst.error = "Invalid floating point immediate expression";
+ inst.error = _("Invalid floating point immediate expression");
return FAIL;
}
- inst.error = "Floating point register or immediate expression expected";
+ inst.error = _("Floating point register or immediate expression expected");
return FAIL;
}
}
static void
do_arit (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL
|| skip_past_comma (&str) == FAIL
static void
do_adr (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
/* This is a pseudo-op of the form "adr rd, label" to be converted
into a relative address of the form "add rd, pc, #label-.-8" */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL
|| skip_past_comma (&str) == FAIL
return;
}
+static void
+do_adrl (str, flags)
+ char * str;
+ unsigned long flags;
+{
+ /* This is a pseudo-op of the form "adrl rd, label" to be converted
+ into a relative address of the form:
+ add rd, pc, #low(label-.-8)"
+ add rd, rd, #high(label-.-8)" */
+
+ skip_whitespace (str);
+
+ if (reg_required_here (& str, 12) == FAIL
+ || skip_past_comma (& str) == FAIL
+ || my_get_expression (& inst.reloc.exp, & str))
+ {
+ if (!inst.error)
+ inst.error = bad_args;
+ return;
+ }
+
+ end_of_line (str);
+
+ /* Frag hacking will turn this into a sub instruction if the offset turns
+ out to be negative. */
+ inst.reloc.type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
+ inst.reloc.exp.X_add_number -= 8; /* PC relative adjust */
+ inst.reloc.pc_rel = 1;
+ inst.instruction |= flags;
+ inst.size = INSN_SIZE * 2;
+
+ return;
+}
+
static void
do_cmp (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 16) == FAIL)
{
static void
do_mov (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL)
{
static int
ldst_extend (str, hwse)
- char **str;
- int hwse;
+ char ** str;
+ int hwse;
{
int add = INDEX_UP;
switch (**str)
{
case '#':
+ case '$':
(*str)++;
- if (my_get_expression (&inst.reloc.exp, str))
+ if (my_get_expression (& inst.reloc.exp, str))
return FAIL;
if (inst.reloc.exp.X_op == O_constant)
if ((hwse && (value < -255 || value > 255))
|| (value < -4095 || value > 4095))
{
- inst.error = "address offset too large";
+ inst.error = _("address offset too large");
return FAIL;
}
/* Halfword and signextension instructions have the
immediate value split across bits 11..8 and bits 3..0 */
if (hwse)
- inst.instruction |= add | HWOFFSET_IMM | (value >> 4) << 8 | value & 0xF;
+ inst.instruction |= add | HWOFFSET_IMM | ((value >> 4) << 8) | (value & 0xF);
else
inst.instruction |= add | value;
}
(*str)++; /* and fall through */
default:
if (reg_required_here (str, 0) == FAIL)
- {
- inst.error = "Register expected";
- return FAIL;
- }
+ return FAIL;
if (hwse)
inst.instruction |= add;
static void
do_ldst (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int halfword = 0;
/* This is not ideal, but it is the simplest way of dealing with the
ARM7T halfword instructions (since they use a different
encoding, but the same mnemonic): */
- if (halfword = ((flags & 0x80000000) != 0))
+ halfword = (flags & 0x80000000) != 0;
+ if (halfword)
{
/* This is actually a load/store of a halfword, or a
signed-extension load */
- if ((cpu_variant & ARM_ARCH4) == 0)
+ if ((cpu_variant & ARM_HALFWORD) == 0)
{
inst.error
- = "Processor does not support halfwords or signed bytes\n";
+ = _("Processor does not support halfwords or signed bytes");
return;
}
flags = 0;
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
- if ((conflict_reg = reg_required_here (&str, 12)) == FAIL)
+ if ((conflict_reg = reg_required_here (& str, 12)) == FAIL)
{
if (!inst.error)
inst.error = bad_args;
return;
}
- if (skip_past_comma (&str) == FAIL)
+ if (skip_past_comma (& str) == FAIL)
{
- inst.error = "Address expected";
+ inst.error = _("Address expected");
return;
}
int reg;
str++;
- while (*str == ' ')
- str++;
+
+ skip_whitespace (str);
if ((reg = reg_required_here (&str, 16)) == FAIL)
- {
- inst.error = "Register required";
- return;
- }
+ return;
- conflict_reg = (((conflict_reg == reg)
- && (inst.instruction & LOAD_BIT))
- ? 1 : 0);
+ /* Conflicts can occur on stores as well as loads. */
+ conflict_reg = (conflict_reg == reg);
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str == ']')
{
- str++;
+ str ++;
+
if (skip_past_comma (&str) == SUCCESS)
{
/* [Rn],... (post inc) */
if (ldst_extend (&str, halfword) == FAIL)
return;
if (conflict_reg)
- as_warn ("destination register same as write-back base\n");
+ as_warn (_("%s register same as write-back base"),
+ (inst.instruction & LOAD_BIT) ? _("destination") : _("source") );
}
else
{
if (halfword)
inst.instruction |= HWOFFSET_IMM;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str == '!')
{
if (conflict_reg)
- as_warn ("destination register same as write-back base\n");
+ as_warn (_("%s register same as write-back base"),
+ (inst.instruction & LOAD_BIT) ? _("destination") : _("source") );
str++;
inst.instruction |= WRITE_BACK;
}
/* [Rn,...] */
if (skip_past_comma (&str) == FAIL)
{
- inst.error = "pre-indexed expression expected";
+ inst.error = _("pre-indexed expression expected");
return;
}
if (ldst_extend (&str, halfword) == FAIL)
return;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str++ != ']')
{
- inst.error = "missing ]";
+ inst.error = _("missing ]");
return;
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str == '!')
{
if (conflict_reg)
- as_tsktsk ("destination register same as write-back base\n");
+ as_warn (_("%s register same as write-back base"),
+ (inst.instruction & LOAD_BIT) ? _("destination") : _("source") );
str++;
inst.instruction |= WRITE_BACK;
}
/* Parse an "ldr Rd, =expr" instruction; this is another pseudo op */
str++;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (my_get_expression (&inst.reloc.exp, &str))
return;
if (inst.reloc.exp.X_op != O_constant
&& inst.reloc.exp.X_op != O_symbol)
{
- inst.error = "Constant expression expected";
+ inst.error = _("Constant expression expected");
return;
}
if (add_to_lit_pool () == FAIL)
{
if (!inst.error)
- inst.error = "literal pool insertion failed\n";
+ inst.error = _("literal pool insertion failed");
return;
}
}
if (pre_inc && (flags & TRANS_BIT))
- inst.error = "Pre-increment instruction with translate";
+ inst.error = _("Pre-increment instruction with translate");
inst.instruction |= flags | (pre_inc ? PRE_INDEX : 0);
end_of_line (str);
static long
reg_list (strp)
- char **strp;
+ char ** strp;
{
- char *str = *strp;
- long range = 0;
- int another_range;
+ char * str = *strp;
+ long range = 0;
+ int another_range;
/* We come back here if we get ranges concatenated by '+' or '|' */
do
{
int reg;
- while (*str == ' ')
- str++;
-
- if ((reg = arm_reg_parse (&str)) == FAIL || !int_register (reg))
- {
- inst.error = "Register expected";
- return FAIL;
- }
+ skip_whitespace (str);
+ if ((reg = reg_required_here (& str, -1)) == FAIL)
+ return FAIL;
+
if (in_range)
{
int i;
if (reg <= cur_reg)
{
- inst.error = "Bad range in register list";
+ inst.error = _("Bad range in register list");
return FAIL;
}
{
if (range & (1 << i))
as_tsktsk
- ("Warning: Duplicated register (r%d) in register list",
+ (_("Warning: Duplicated register (r%d) in register list"),
i);
else
range |= 1 << i;
}
if (range & (1 << reg))
- as_tsktsk ("Warning: Duplicated register (r%d) in register list",
+ as_tsktsk (_("Warning: Duplicated register (r%d) in register list"),
reg);
else if (reg <= cur_reg)
- as_tsktsk ("Warning: Register range not in ascending order");
+ as_tsktsk (_("Warning: Register range not in ascending order"));
range |= 1 << reg;
cur_reg = reg;
} while (skip_past_comma (&str) != FAIL
|| (in_range = 1, *str++ == '-'));
str--;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str++ != '}')
{
- inst.error = "Missing `}'";
+ inst.error = _("Missing `}'");
return FAIL;
}
}
if (expr.X_add_number
!= (expr.X_add_number & 0x0000ffff))
{
- inst.error = "invalid register mask";
+ inst.error = _("invalid register mask");
return FAIL;
}
regno &= -regno;
regno = (1 << regno) - 1;
as_tsktsk
- ("Warning: Duplicated register (r%d) in register list",
+ (_("Warning: Duplicated register (r%d) in register list"),
regno);
}
{
if (inst.reloc.type != 0)
{
- inst.error = "expression too complex";
+ inst.error = _("expression too complex");
return FAIL;
}
}
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str == '|' || *str == '+')
{
static void
do_ldmstm (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int base_reg;
long range;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((base_reg = reg_required_here (&str, 16)) == FAIL)
- {
- if (!inst.error)
- inst.error = bad_args;
- return;
- }
+ return;
if (base_reg == REG_PC)
{
- inst.error = "r15 not allowed as base register";
+ inst.error = _("r15 not allowed as base register");
return;
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
+
if (*str == '!')
{
flags |= WRITE_BACK;
static void
do_swi (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
+ skip_whitespace (str);
+
/* Allow optional leading '#'. */
- while (*str == ' ')
- str++;
- if (*str == '#')
+ if (is_immediate_prefix (*str))
str++;
- if (my_get_expression (&inst.reloc.exp, &str))
+ if (my_get_expression (& inst.reloc.exp, & str))
return;
inst.reloc.type = BFD_RELOC_ARM_SWI;
inst.reloc.pc_rel = 0;
inst.instruction |= flags;
+
end_of_line (str);
+
return;
}
static void
do_swap (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int reg;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((reg = reg_required_here (&str, 12)) == FAIL)
return;
if (reg == REG_PC)
{
- inst.error = "r15 not allowed in swap";
+ inst.error = _("r15 not allowed in swap");
return;
}
if (reg == REG_PC)
{
- inst.error = "r15 not allowed in swap";
+ inst.error = _("r15 not allowed in swap");
return;
}
return;
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((reg = reg_required_here (&str, 16)) == FAIL)
return;
return;
}
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str++ != ']')
{
- inst.error = "missing ]";
+ inst.error = _("missing ]");
return;
}
static void
do_branch (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
if (my_get_expression (&inst.reloc.exp, &str))
return;
- inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
+
+#ifdef OBJ_ELF
+ {
+ char * save_in;
+
+ /* ScottB: February 5, 1998 */
+ /* Check to see of PLT32 reloc required for the instruction. */
+
+ /* arm_parse_reloc() works on input_line_pointer.
+ We actually want to parse the operands to the branch instruction
+ passed in 'str'. Save the input pointer and restore it later. */
+ save_in = input_line_pointer;
+ input_line_pointer = str;
+ if (inst.reloc.exp.X_op == O_symbol
+ && *str == '('
+ && arm_parse_reloc () == BFD_RELOC_ARM_PLT32)
+ {
+ inst.reloc.type = BFD_RELOC_ARM_PLT32;
+ inst.reloc.pc_rel = 0;
+ /* Modify str to point to after parsed operands, otherwise
+ end_of_line() will complain about the (PLT) left in str. */
+ str = input_line_pointer;
+ }
+ else
+ {
+ inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
+ inst.reloc.pc_rel = 1;
+ }
+ input_line_pointer = save_in;
+ }
+#else
+ inst.reloc.type = BFD_RELOC_ARM_PCREL_BRANCH;
inst.reloc.pc_rel = 1;
+#endif /* OBJ_ELF */
+
end_of_line (str);
return;
}
static void
do_bx (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int reg;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((reg = reg_required_here (&str, 0)) == FAIL)
return;
if (reg == REG_PC)
- as_tsktsk ("Use of r15 in bx has undefined behaviour");
+ as_tsktsk (_("Use of r15 in bx has undefined behaviour"));
end_of_line (str);
return;
static void
do_cdp (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
/* Co-processor data operation.
Format: CDP{cond} CP#,<expr>,CRd,CRn,CRm{,<expr>} */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (co_proc_number (&str) == FAIL)
{
static void
do_lstc (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
/* Co-processor register load/store.
Format: <LDC|STC{cond}[L] CP#,CRd,<address> */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (co_proc_number (&str) == FAIL)
{
static void
do_co_reg (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
/* Co-processor register transfer.
Format: <MCR|MRC>{cond} CP#,<expr1>,Rd,CRn,CRm{,<expr2>} */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (co_proc_number (&str) == FAIL)
{
static void
do_fp_ctrl (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
/* FP control registers.
Format: <WFS|RFS|WFC|RFC>{cond} Rn */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL)
{
static void
do_fp_ldst (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
switch (inst.suffix)
{
static void
do_fp_ldmstm (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
int num_regs;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (fp_reg_required_here (&str, 12) == FAIL)
{
|| my_get_expression (&inst.reloc.exp, &str))
{
if (! inst.error)
- inst.error = "constant expression expected";
+ inst.error = _("constant expression expected");
return;
}
if (inst.reloc.exp.X_op != O_constant)
{
- inst.error = "Constant value required for number of registers";
+ inst.error = _("Constant value required for number of registers");
return;
}
if (num_regs < 1 || num_regs > 4)
{
- inst.error = "number of registers must be in the range [1:4]";
+ inst.error = _("number of registers must be in the range [1:4]");
return;
}
}
str++;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((reg = reg_required_here (&str, 16)) == FAIL)
- {
- inst.error = "Register required";
- return;
- }
+ return;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (*str != ']')
{
str++;
if (reg == REG_PC)
{
- inst.error = "R15 not allowed as base register with write-back";
+ inst.error = _("R15 not allowed as base register with write-back");
return;
}
}
static void
do_fp_dyadic (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
switch (inst.suffix)
{
static void
do_fp_monadic (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
switch (inst.suffix)
{
static void
do_fp_cmp (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (fp_reg_required_here (&str, 16) == FAIL)
{
static void
do_fp_from_reg (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
switch (inst.suffix)
{
static void
do_fp_to_reg (str, flags)
- char *str;
+ char * str;
unsigned long flags;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (reg_required_here (&str, 12) == FAIL)
- {
- if (! inst.error)
- inst.error = bad_args;
- return;
- }
+ return;
if (skip_past_comma (&str) == FAIL
|| fp_reg_required_here (&str, 0) == FAIL)
has been parsed. */
static int
thumb_reg (strp, hi_lo)
- char **strp;
- int hi_lo;
+ char ** strp;
+ int hi_lo;
{
int reg;
- if ((reg = arm_reg_parse (strp)) == FAIL || ! int_register (reg))
- {
- inst.error = "Register expected";
- return FAIL;
- }
+ if ((reg = reg_required_here (strp, -1)) == FAIL)
+ return FAIL;
switch (hi_lo)
{
case THUMB_REG_LO:
if (reg > 7)
{
- inst.error = "lo register required";
+ inst.error = _("lo register required");
return FAIL;
}
break;
case THUMB_REG_HI:
if (reg < 8)
{
- inst.error = "hi register required";
+ inst.error = _("hi register required");
return FAIL;
}
break;
was SUB. */
static void
thumb_add_sub (str, subtract)
- char *str;
- int subtract;
+ char * str;
+ int subtract;
{
int Rd, Rs, Rn = FAIL;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
|| skip_past_comma (&str) == FAIL)
return;
}
- if (*str == '#')
+ if (is_immediate_prefix (*str))
{
Rs = Rd;
str++;
Rn = Rs;
Rs = Rd;
}
- else if (*str == '#')
+ else if (is_immediate_prefix (*str))
{
str++;
if (my_get_expression (&inst.reloc.exp, &str))
{
if (Rs != Rd)
{
- inst.error = "dest and source1 must be the same register";
+ inst.error = _("dest and source1 must be the same register");
return;
}
/* Can't do this for SUB */
if (subtract)
{
- inst.error = "subtract valid only on lo regs";
+ inst.error = _("subtract valid only on lo regs");
return;
}
if ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
|| (Rs > 7 && Rs != REG_SP && Rs != REG_PC))
{
- inst.error = "invalid Hi register with immediate";
+ inst.error = _("invalid Hi register with immediate");
return;
}
/* Quick check, in case offset is MIN_INT */
if (offset < 0)
{
- inst.error = "immediate value out of range";
+ inst.error = _("immediate value out of range");
return;
}
}
{
if (offset & ~0x1fc)
{
- inst.error = "invalid immediate value for stack adjust";
+ inst.error = _("invalid immediate value for stack adjust");
return;
}
inst.instruction = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
if (subtract
|| (offset & ~0x3fc))
{
- inst.error = "invalid immediate for address calculation";
+ inst.error = _("invalid immediate for address calculation");
return;
}
inst.instruction = (Rs == REG_PC ? T_OPCODE_ADD_PC
{
if (offset & ~0xff)
{
- inst.error = "immediate value out of range";
+ inst.error = _("immediate value out of range");
return;
}
inst.instruction = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
{
if (offset & ~0x7)
{
- inst.error = "immediate value out of range";
+ inst.error = _("immediate value out of range");
return;
}
inst.instruction = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
static void
thumb_shift (str, shift)
- char *str;
- int shift;
+ char * str;
+ int shift;
{
int Rd, Rs, Rn = FAIL;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
|| skip_past_comma (&str) == FAIL)
return;
}
- if (*str == '#')
+ if (is_immediate_prefix (*str))
{
/* Two operand immediate format, set Rs to Rd. */
Rs = Rd;
Rn = Rs;
Rs = Rd;
}
- else if (*str == '#')
+ else if (is_immediate_prefix (*str))
{
str++;
if (my_get_expression (&inst.reloc.exp, &str))
{
if (Rs != Rd)
{
- inst.error = "source1 and dest must be same register";
+ inst.error = _("source1 and dest must be same register");
return;
}
if (shift_value > 32 || (shift_value == 32 && shift == THUMB_LSL))
{
- inst.error = "Invalid immediate for shift";
+ inst.error = _("Invalid immediate for shift");
return;
}
static void
thumb_mov_compare (str, move)
- char *str;
- int move;
+ char * str;
+ int move;
{
int Rd, Rs = FAIL;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_ANY)) == FAIL
|| skip_past_comma (&str) == FAIL)
return;
}
- if (*str == '#')
+ if (is_immediate_prefix (*str))
{
str++;
if (my_get_expression (&inst.reloc.exp, &str))
if (Rs < 8 && Rd < 8)
{
if (move == THUMB_MOVE)
- /* A move of two lowregs is, by convention, encoded as
- ADD Rd, Rs, #0 */
+ /* A move of two lowregs is encoded as ADD Rd, Rs, #0
+ since a MOV instruction produces unpredictable results */
inst.instruction = T_OPCODE_ADD_I3;
else
inst.instruction = T_OPCODE_CMP_LR;
{
if (Rd > 7)
{
- inst.error = "only lo regs allowed with immediate";
+ inst.error = _("only lo regs allowed with immediate");
return;
}
if (value > 255)
{
- inst.error = "invalid immediate";
+ inst.error = _("invalid immediate");
return;
}
static void
thumb_load_store (str, load_store, size)
- char *str;
- int load_store;
- int size;
+ char * str;
+ int load_store;
+ int size;
{
int Rd, Rb, Ro = FAIL;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
|| skip_past_comma (&str) == FAIL)
if (skip_past_comma (&str) != FAIL)
{
- if (*str == '#')
+ if (is_immediate_prefix (*str))
{
str++;
if (my_get_expression (&inst.reloc.exp, &str))
if (*str != ']')
{
- inst.error = "expected ']'";
+ inst.error = _("expected ']'");
return;
}
str++;
}
else if (*str == '=')
{
- /* TODO: We should allow the "ldr Rd,=expr" pseudo op in thumb mode */
- abort ();
+ /* Parse an "ldr Rd, =expr" instruction; this is another pseudo op */
+ str++;
+
+ skip_whitespace (str);
+
+ if (my_get_expression (& inst.reloc.exp, & str))
+ return;
+
+ end_of_line (str);
+
+ if ( inst.reloc.exp.X_op != O_constant
+ && inst.reloc.exp.X_op != O_symbol)
+ {
+ inst.error = "Constant expression expected";
+ return;
+ }
+
+ if (inst.reloc.exp.X_op == O_constant
+ && ((inst.reloc.exp.X_add_number & ~0xFF) == 0))
+ {
+ /* This can be done with a mov instruction */
+
+ inst.instruction = T_OPCODE_MOV_I8 | (Rd << 8);
+ inst.instruction |= inst.reloc.exp.X_add_number;
+ return;
+ }
+
+ /* Insert into literal pool */
+ if (add_to_lit_pool () == FAIL)
+ {
+ if (!inst.error)
+ inst.error = "literal pool insertion failed";
+ return;
+ }
+
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
+ inst.reloc.pc_rel = 1;
+ inst.instruction = T_OPCODE_LDR_PC | (Rd << 8);
+ inst.reloc.exp.X_add_number += 4; /* Adjust ARM pipeline offset to Thumb */
+
+ return;
}
else
{
{
if (size != THUMB_WORD)
{
- inst.error = "byte or halfword not valid for base register";
+ inst.error = _("byte or halfword not valid for base register");
return;
}
else if (Rb == REG_PC && load_store != THUMB_LOAD)
{
- inst.error = "R15 based store not allowed";
+ inst.error = _("R15 based store not allowed");
return;
}
else if (Ro != FAIL)
{
- inst.error = "Invalid base register for register offset";
+ inst.error = _("Invalid base register for register offset");
return;
}
if (offset & ~0x3fc)
{
- inst.error = "invalid offset";
+ inst.error = _("invalid offset");
return;
}
}
else if (Rb > 7)
{
- inst.error = "invalid base register in load/store";
+ inst.error = _("invalid base register in load/store");
return;
}
else if (Ro == FAIL)
if (offset & ~(0x1f << size))
{
- inst.error = "Invalid offset";
+ inst.error = _("Invalid offset");
return;
}
inst.instruction |= (offset >> size) << 6;
static void
do_t_nop (str)
- char *str;
+ char * str;
{
/* Do nothing */
end_of_line (str);
BIC and MVN. */
static void
do_t_arit (str)
- char *str;
+ char * str;
{
int Rd, Rs, Rn;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
return;
if (Rs != Rd)
{
- inst.error = "dest and source1 one must be the same register";
+ inst.error = _("dest and source1 one must be the same register");
return;
}
Rs = Rn;
if (inst.instruction == T_OPCODE_MUL
&& Rs == Rd)
- as_tsktsk ("Rs and Rd must be different in MUL");
+ as_tsktsk (_("Rs and Rd must be different in MUL"));
inst.instruction |= Rd | (Rs << 3);
end_of_line (str);
static void
do_t_add (str)
- char *str;
+ char * str;
{
thumb_add_sub (str, 0);
}
static void
do_t_asr (str)
- char *str;
+ char * str;
{
thumb_shift (str, THUMB_ASR);
}
static void
do_t_branch9 (str)
- char *str;
+ char * str;
{
if (my_get_expression (&inst.reloc.exp, &str))
return;
static void
do_t_branch12 (str)
- char *str;
+ char * str;
{
if (my_get_expression (&inst.reloc.exp, &str))
return;
end_of_line (str);
}
+/* Find the real, Thumb encoded start of a Thumb function. */
+
+static symbolS *
+find_real_start (symbolP)
+ symbolS * symbolP;
+{
+ char * real_start;
+ const char * name = S_GET_NAME (symbolP);
+ symbolS * new_target;
+
+ /* This definiton must agree with the one in gcc/config/arm/thumb.c */
+#define STUB_NAME ".real_start_of"
+
+ if (name == NULL)
+ abort();
+
+ /* Names that start with '.' are local labels, not function entry points.
+ The compiler may generate BL instructions to these labels because it
+ needs to perform a branch to a far away location. */
+ if (name[0] == '.')
+ return symbolP;
+
+ real_start = malloc (strlen (name) + strlen (STUB_NAME) + 1);
+ sprintf (real_start, "%s%s", STUB_NAME, name);
+
+ new_target = symbol_find (real_start);
+
+ if (new_target == NULL)
+ {
+ as_warn ("Failed to find real start of function: %s\n", name);
+ new_target = symbolP;
+ }
+
+ free (real_start);
+
+ return new_target;
+}
+
+
static void
do_t_branch23 (str)
- char *str;
+ char * str;
{
- if (my_get_expression (&inst.reloc.exp, &str))
+ if (my_get_expression (& inst.reloc.exp, & str))
return;
- inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
+
+ inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
inst.reloc.pc_rel = 1;
end_of_line (str);
+
+ /* If the destination of the branch is a defined symbol which does not have
+ the THUMB_FUNC attribute, then we must be calling a function which has
+ the (interfacearm) attribute. We look for the Thumb entry point to that
+ function and change the branch to refer to that function instead. */
+ if ( inst.reloc.exp.X_op == O_symbol
+ && inst.reloc.exp.X_add_symbol != NULL
+ && S_IS_DEFINED (inst.reloc.exp.X_add_symbol)
+ && ! THUMB_IS_FUNC (inst.reloc.exp.X_add_symbol))
+ inst.reloc.exp.X_add_symbol = find_real_start (inst.reloc.exp.X_add_symbol);
}
static void
do_t_bx (str)
- char *str;
+ char * str;
{
int reg;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((reg = thumb_reg (&str, THUMB_REG_ANY)) == FAIL)
return;
static void
do_t_compare (str)
- char *str;
+ char * str;
{
thumb_mov_compare (str, THUMB_COMPARE);
}
static void
do_t_ldmstm (str)
- char *str;
+ char * str;
{
int Rb;
long range;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rb = thumb_reg (&str, THUMB_REG_LO)) == FAIL)
return;
if (*str != '!')
- as_warn ("Inserted missing '!': load/store multiple always writes back base register");
+ as_warn (_("Inserted missing '!': load/store multiple always writes back base register"));
else
str++;
{
/* This really doesn't seem worth it. */
inst.reloc.type = BFD_RELOC_NONE;
- inst.error = "Expression too complex";
+ inst.error = _("Expression too complex");
return;
}
if (range & ~0xff)
{
- inst.error = "only lo-regs valid in load/store multiple";
+ inst.error = _("only lo-regs valid in load/store multiple");
return;
}
static void
do_t_ldr (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_LOAD, THUMB_WORD);
}
static void
do_t_ldrb (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_LOAD, THUMB_BYTE);
}
static void
do_t_ldrh (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_LOAD, THUMB_HALFWORD);
}
static void
do_t_lds (str)
- char *str;
+ char * str;
{
int Rd, Rb, Ro;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((Rd = thumb_reg (&str, THUMB_REG_LO)) == FAIL
|| skip_past_comma (&str) == FAIL
|| *str++ != ']')
{
if (! inst.error)
- inst.error = "Syntax: ldrs[b] Rd, [Rb, Ro]";
+ inst.error = _("Syntax: ldrs[b] Rd, [Rb, Ro]");
return;
}
static void
do_t_lsl (str)
- char *str;
+ char * str;
{
thumb_shift (str, THUMB_LSL);
}
static void
do_t_lsr (str)
- char *str;
+ char * str;
{
thumb_shift (str, THUMB_LSR);
}
static void
do_t_mov (str)
- char *str;
+ char * str;
{
thumb_mov_compare (str, THUMB_MOVE);
}
static void
do_t_push_pop (str)
- char *str;
+ char * str;
{
long range;
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if ((range = reg_list (&str)) == FAIL)
{
{
/* This really doesn't seem worth it. */
inst.reloc.type = BFD_RELOC_NONE;
- inst.error = "Expression too complex";
+ inst.error = _("Expression too complex");
return;
}
}
else
{
- inst.error = "invalid register list to push/pop instruction";
+ inst.error = _("invalid register list to push/pop instruction");
return;
}
}
static void
do_t_str (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_STORE, THUMB_WORD);
}
static void
do_t_strb (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_STORE, THUMB_BYTE);
}
static void
do_t_strh (str)
- char *str;
+ char * str;
{
thumb_load_store (str, THUMB_STORE, THUMB_HALFWORD);
}
static void
do_t_sub (str)
- char *str;
+ char * str;
{
thumb_add_sub (str, 1);
}
static void
do_t_swi (str)
- char *str;
+ char * str;
{
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
if (my_get_expression (&inst.reloc.exp, &str))
return;
static void
do_t_adr (str)
- char *str;
+ char * str;
{
/* This is a pseudo-op of the form "adr rd, label" to be converted
into a relative address of the form "add rd, pc, #label-.-4" */
- while (*str == ' ')
- str++;
+ skip_whitespace (str);
- if (reg_required_here (&str, 4) == FAIL
+ if (reg_required_here (&str, 4) == FAIL /* Store Rd in temporary location inside instruction. */
|| skip_past_comma (&str) == FAIL
|| my_get_expression (&inst.reloc.exp, &str))
{
insert_reg (entry)
int entry;
{
- int len = strlen (reg_table[entry].name) + 2;
- char *buf = (char *) xmalloc (len);
- char *buf2 = (char *) xmalloc (len);
- int i = 0;
+ int len = strlen (reg_table[entry].name) + 2;
+ char * buf = (char *) xmalloc (len);
+ char * buf2 = (char *) xmalloc (len);
+ int i = 0;
#ifdef REGISTER_PREFIX
buf[i++] = REGISTER_PREFIX;
md_begin ()
{
int i;
-
- if ((arm_ops_hsh = hash_new ()) == NULL
+
+ if ( (arm_ops_hsh = hash_new ()) == NULL
|| (arm_tops_hsh = hash_new ()) == NULL
|| (arm_cond_hsh = hash_new ()) == NULL
|| (arm_shift_hsh = hash_new ()) == NULL
|| (arm_reg_hsh = hash_new ()) == NULL
|| (arm_psr_hsh = hash_new ()) == NULL)
- as_fatal ("Virtual memory exhausted");
+ as_fatal (_("Virtual memory exhausted"));
for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
hash_insert (arm_ops_hsh, insns[i].template, (PTR) (insns + i));
set_constant_flonums ();
-#ifdef OBJ_COFF
- /* Set the flags in the private structure */
- bfd_set_private_flags (stdoutput, uses_apcs_26 ? F_APCS26 : 0);
+#if defined OBJ_COFF || defined OBJ_ELF
+ {
+ unsigned int flags = 0;
+
+ /* Set the flags in the private structure */
+ if (uses_apcs_26) flags |= F_APCS26;
+ if (support_interwork) flags |= F_INTERWORK;
+ if (uses_apcs_float) flags |= F_APCS_FLOAT;
+ if (pic_code) flags |= F_PIC;
+ if ((cpu_variant & FPU_ALL) == FPU_NONE) flags |= F_SOFT_FLOAT;
+
+ bfd_set_private_flags (stdoutput, flags);
+ }
#endif
{
break;
}
- /* Catch special cases */
+ /* Catch special cases. */
if (cpu_variant != (FPU_DEFAULT | CPU_DEFAULT))
{
- if (cpu_variant & ARM_THUMB)
+ if (cpu_variant & (ARM_EXT_V5 & ARM_THUMB))
+ mach = bfd_mach_arm_5T;
+ else if (cpu_variant & ARM_EXT_V5)
+ mach = bfd_mach_arm_5;
+ else if (cpu_variant & ARM_THUMB)
mach = bfd_mach_arm_4T;
- else if (cpu_variant & ARM_ARCH4)
+ else if ((cpu_variant & ARM_ARCH_V4) == ARM_ARCH_V4)
mach = bfd_mach_arm_4;
else if (cpu_variant & ARM_LONGMUL)
mach = bfd_mach_arm_3M;
This knows about the endian-ness of the target machine and does
THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
2 (short) and 4 (long) Floating numbers are put out as a series of
- LITTLENUMS (shorts, here at least)
- */
+ LITTLENUMS (shorts, here at least). */
void
md_number_to_chars (buf, val, n)
- char *buf;
+ char * buf;
valueT val;
- int n;
+ int n;
{
if (target_big_endian)
number_to_chars_bigendian (buf, val, n);
static valueT
md_chars_to_number (buf, n)
- char *buf;
+ char * buf;
int n;
{
valueT result = 0;
- unsigned char *where = (unsigned char *) buf;
+ unsigned char * where = (unsigned char *) buf;
if (target_big_endian)
{
char *
md_atof (type, litP, sizeP)
- char type;
- char *litP;
- int *sizeP;
+ char type;
+ char * litP;
+ int * sizeP;
{
int prec;
LITTLENUM_TYPE words[MAX_LITTLENUMS];
default:
*sizeP = 0;
- return "Bad call to MD_ATOF()";
+ return _("Bad call to MD_ATOF()");
}
t = atof_ieee (input_line_pointer, type, words);
return 0;
}
-/* We have already put the pipeline compensation in the instruction */
-
+/* The knowledge of the PC's pipeline offset is built into the insns themselves. */
long
md_pcrel_from (fixP)
- fixS *fixP;
+ fixS * fixP;
{
- if (fixP->fx_addsy && S_GET_SEGMENT (fixP->fx_addsy) == undefined_section
+ if ( fixP->fx_addsy
+ && S_GET_SEGMENT (fixP->fx_addsy) == undefined_section
&& fixP->fx_subsy == NULL)
- return 0; /* HACK */
+ return 0;
+
+ if (fixP->fx_pcrel && (fixP->fx_r_type == BFD_RELOC_ARM_THUMB_ADD))
+ {
+ /* PC relative addressing on the Thumb is slightly odd
+ as the bottom two bits of the PC are forced to zero
+ for the calculation. */
+ return (fixP->fx_where + fixP->fx_frag->fr_address) & ~3;
+ }
return fixP->fx_where + fixP->fx_frag->fr_address;
}
/* Round up a section size to the appropriate boundary. */
valueT
md_section_align (segment, size)
- segT segment;
+ segT segment;
valueT size;
{
+#ifdef OBJ_ELF
+ /* Don't align the dwarf2 debug sections */
+ if (!strncmp (segment->name, ".debug", 5))
+ return size;
+#endif
/* Round all sects to multiple of 4 */
return (size + 3) & ~3;
}
-/* We have no need to default values of symbols. */
+/* Under ELF we need to default _GLOBAL_OFFSET_TABLE. Otherwise
+ we have no need to default values of symbols. */
/* ARGSUSED */
symbolS *
md_undefined_symbol (name)
- char *name;
+ char * name;
{
+#ifdef OBJ_ELF
+ if (name[0] == '_' && name[1] == 'G'
+ && streq (name, GLOBAL_OFFSET_TABLE_NAME))
+ {
+ if (!GOT_symbol)
+ {
+ if (symbol_find (name))
+ as_bad ("GOT already in the symbol table");
+
+ GOT_symbol = symbol_new (name, undefined_section,
+ (valueT)0, & zero_address_frag);
+ }
+
+ return GOT_symbol;
+ }
+#endif
+
return 0;
}
static int
arm_reg_parse (ccp)
- register char **ccp;
+ register char ** ccp;
{
- char *start = *ccp;
- char c;
- char *p;
- struct reg_entry *reg;
+ char * start = * ccp;
+ char c;
+ char * p;
+ struct reg_entry * reg;
#ifdef REGISTER_PREFIX
if (*start != REGISTER_PREFIX)
static int
arm_psr_parse (ccp)
- register char **ccp;
+ register char ** ccp;
{
- char *start = *ccp;
- char c, *p;
- CONST struct asm_psr *psr;
+ char * start = * ccp;
+ char c;
+ char * p;
+ CONST struct asm_psr * psr;
p = start;
c = *p++;
int
md_apply_fix3 (fixP, val, seg)
- fixS *fixP;
- valueT *val;
- segT seg;
-{
- offsetT value = *val;
- offsetT newval;
- unsigned long temp;
- int sign;
- char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
- arm_fix_data *arm_data = (arm_fix_data *) fixP->tc_fix_data;
+ fixS * fixP;
+ valueT * val;
+ segT seg;
+{
+ offsetT value = * val;
+ offsetT newval;
+ unsigned int newimm;
+ unsigned long temp;
+ int sign;
+ 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);
/* 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 || fixP->fx_addsy->sy_value.X_op == O_constant)
+ if ((fixP->fx_addsy == 0 || symbol_constant_p (fixP->fx_addsy))
&& !fixP->fx_pcrel)
#else
if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
so we have to undo it's effects here. */
if (fixP->fx_pcrel)
{
- if (S_IS_DEFINED (fixP->fx_addsy)
+ if (fixP->fx_addsy != NULL
+ && S_IS_DEFINED (fixP->fx_addsy)
&& S_GET_SEGMENT (fixP->fx_addsy) != seg)
- value += md_pcrel_from (fixP);
+ {
+ if (target_oabi
+ && fixP->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH)
+ value = 0;
+ else
+ value += md_pcrel_from (fixP);
+ }
}
- fixP->fx_addnumber = value; /* Remember value for emit_reloc */
+ fixP->fx_addnumber = value; /* Remember value for emit_reloc. */
switch (fixP->fx_r_type)
{
case BFD_RELOC_ARM_IMMEDIATE:
- newval = validate_immediate (value);
+ newimm = validate_immediate (value);
temp = md_chars_to_number (buf, INSN_SIZE);
/* If the instruction will fail, see if we can fix things up by
changing the opcode. */
- if (newval == FAIL
- && (newval = negate_data_op (&temp, value)) == FAIL)
+ if (newimm == (unsigned int) FAIL
+ && (newimm = negate_data_op (&temp, value)) == (unsigned int) FAIL)
{
as_bad_where (fixP->fx_file, fixP->fx_line,
- "invalid constant after fixup\n");
+ _("invalid constant (%lx) after fixup"),
+ (unsigned long) value);
break;
}
- newval |= (temp & 0xfffff000);
- md_number_to_chars (buf, newval, INSN_SIZE);
+ newimm |= (temp & 0xfffff000);
+ md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
+ break;
+
+ case BFD_RELOC_ARM_ADRL_IMMEDIATE:
+ {
+ unsigned int highpart = 0;
+ unsigned int newinsn = 0xe1a00000; /* nop */
+ newimm = validate_immediate (value);
+ temp = md_chars_to_number (buf, INSN_SIZE);
+
+ /* If the instruction will fail, see if we can fix things up by
+ changing the opcode. */
+ if (newimm == (unsigned int) FAIL
+ && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
+ {
+ /* No ? OK - try using two ADD instructions to generate the value. */
+ newimm = validate_immediate_twopart (value, & highpart);
+
+ /* Yes - then make sure that the second instruction is also an add. */
+ if (newimm != (unsigned int) FAIL)
+ newinsn = temp;
+ /* Still No ? Try using a negated value. */
+ else if (validate_immediate_twopart (- value, & highpart) != (unsigned int) FAIL)
+ temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
+ /* Otherwise - give up. */
+ else
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("Unable to compute ADRL instructions for PC offset of 0x%x"), value);
+ break;
+ }
+
+ /* Replace the first operand in the 2nd instruction (which is the PC)
+ with the destination register. We have already added in the PC in the
+ first instruction and we do not want to do it again. */
+ newinsn &= ~ 0xf0000;
+ newinsn |= ((newinsn & 0x0f000) << 4);
+ }
+
+ newimm |= (temp & 0xfffff000);
+ md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
+
+ highpart |= (newinsn & 0xfffff000);
+ md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
+ }
break;
- case BFD_RELOC_ARM_OFFSET_IMM:
+ case BFD_RELOC_ARM_OFFSET_IMM:
sign = value >= 0;
- if ((value = validate_offset_imm (value, 0)) == FAIL)
+
+ if (value < 0)
+ value = - value;
+
+ if (validate_offset_imm (value, 0) == FAIL)
{
- as_bad ("bad immediate value for offset (%d)", val);
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("bad immediate value for offset (%ld)"), (long) value);
break;
}
- if (value < 0)
- value = -value;
newval = md_chars_to_number (buf, INSN_SIZE);
newval &= 0xff7ff000;
case BFD_RELOC_ARM_OFFSET_IMM8:
case BFD_RELOC_ARM_HWLITERAL:
sign = value >= 0;
- if ((value = validate_offset_imm (value, 1)) == FAIL)
+
+ if (value < 0)
+ value = - value;
+
+ if (validate_offset_imm (value, 1) == FAIL)
{
if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "invalid literal constant: pool needs to be closer\n");
+ _("invalid literal constant: pool needs to be closer"));
else
- as_bad ("bad immediate value for offset (%d)", value);
+ as_bad (_("bad immediate value for half-word offset (%ld)"),
+ (long) value);
break;
}
- if (value < 0)
- value = -value;
-
newval = md_chars_to_number (buf, INSN_SIZE);
newval &= 0xff7ff0f0;
- newval |= ((value >> 4) << 8) | value & 0xf | (sign ? INDEX_UP : 0);
+ newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
md_number_to_chars (buf, newval, INSN_SIZE);
break;
case BFD_RELOC_ARM_LITERAL:
sign = value >= 0;
+
if (value < 0)
- value = -value;
+ value = - value;
- if ((value = validate_offset_imm (value, 0)) == FAIL)
+ if (validate_offset_imm (value, 0) == FAIL)
{
as_bad_where (fixP->fx_file, fixP->fx_line,
- "invalid literal constant: pool needs to be closer\n");
+ _("invalid literal constant: pool needs to be closer"));
break;
}
&& (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
{
as_bad_where (fixP->fx_file, fixP->fx_line,
- "shift expression is too large");
+ _("shift expression is too large"));
break;
}
{
if (((unsigned long) value) > 0xff)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid swi expression");
+ _("Invalid swi expression"));
newval = md_chars_to_number (buf, THUMB_SIZE) & 0xff00;
newval |= value;
md_number_to_chars (buf, newval, THUMB_SIZE);
{
if (((unsigned long) value) > 0x00ffffff)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid swi expression");
+ _("Invalid swi expression"));
newval = md_chars_to_number (buf, INSN_SIZE) & 0xff000000;
newval |= value;
md_number_to_chars (buf, newval , INSN_SIZE);
case BFD_RELOC_ARM_MULTI:
if (((unsigned long) value) > 0xffff)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid expression in load/store multiple");
+ _("Invalid expression in load/store multiple"));
newval = value | md_chars_to_number (buf, INSN_SIZE);
md_number_to_chars (buf, newval, INSN_SIZE);
break;
case BFD_RELOC_ARM_PCREL_BRANCH:
- value = (value >> 2) & 0x00ffffff;
newval = md_chars_to_number (buf, INSN_SIZE);
- value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
+
+#ifdef OBJ_ELF
+ if (! target_oabi)
+ value = fixP->fx_offset;
+#endif
+ value = (value >> 2) & 0x00ffffff;
+ value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
newval = value | (newval & 0xff000000);
md_number_to_chars (buf, newval, INSN_SIZE);
break;
diff |= ~0xff;
value += diff;
- if ((value & 0x100) && ((value & ~0xff) != ~0xff))
+ if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Branch out of range");
+ _("Branch out of range"));
newval = (newval & 0xff00) | ((value & 0x1ff) >> 1);
}
md_number_to_chars (buf, newval, THUMB_SIZE);
diff |= ~0x7ff;
value += diff;
- if ((value & 0x800) && ((value & ~0x7ff) != ~0x7ff))
+ if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Branch out of range");
+ _("Branch out of range"));
newval = (newval & 0xf800) | ((value & 0xfff) >> 1);
}
md_number_to_chars (buf, newval, THUMB_SIZE);
break;
case BFD_RELOC_THUMB_PCREL_BRANCH23:
- newval = md_chars_to_number (buf, THUMB_SIZE);
{
offsetT newval2;
addressT diff;
- newval2 = md_chars_to_number (buf + 2, THUMB_SIZE);
+ newval = md_chars_to_number (buf, THUMB_SIZE);
+ newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
diff = ((newval & 0x7ff) << 12) | ((newval2 & 0x7ff) << 1);
if (diff & 0x400000)
- diff |= ~0x3fffff;
+ diff |= ~0x3fffff;
+#ifdef OBJ_ELF
+ value = fixP->fx_offset;
+#endif
value += diff;
- if ((value & 0x400000) && ((value & ~0x3fffff) != ~0x3fffff))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Branch with link out of range");
+ if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("Branch with link out of range"));
- newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12);
+ 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 + 2, newval2, THUMB_SIZE);
+ md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
}
break;
case BFD_RELOC_8:
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 1);
+#ifdef OBJ_ELF
+ else if (!target_oabi)
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 1);
+ }
+#endif
break;
case BFD_RELOC_16:
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 2);
+#ifdef OBJ_ELF
+ else if (!target_oabi)
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 2);
+ }
+#endif
break;
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_GOT32:
+ case BFD_RELOC_ARM_GOTOFF:
+ md_number_to_chars (buf, 0, 4);
+ break;
+#endif
+
case BFD_RELOC_RVA:
case BFD_RELOC_32:
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 4);
+#ifdef OBJ_ELF
+ else if (!target_oabi)
+ {
+ value = fixP->fx_offset;
+ md_number_to_chars (buf, value, 4);
+ }
+#endif
break;
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_PLT32:
+ /* It appears the instruction is fully prepared at this point. */
+ break;
+#endif
+
+ case BFD_RELOC_ARM_GOTPC:
+ md_number_to_chars (buf, value, 4);
+ break;
+
case BFD_RELOC_ARM_CP_OFF_IMM:
sign = value >= 0;
if (value < -1023 || value > 1023 || (value & 3))
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Illegal value for co-processor offset");
+ _("Illegal value for co-processor offset"));
if (value < 0)
value = -value;
newval = md_chars_to_number (buf, INSN_SIZE) & 0xff7fff00;
if ((fixP->fx_frag->fr_address + fixP->fx_where + value) & 3)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset, target not word aligned (0x%08X)",
+ _("Invalid offset, target not word aligned (0x%08X)"),
(unsigned int)(fixP->fx_frag->fr_address + fixP->fx_where + value));
if ((value + 2) & ~0x3fe)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset");
+ _("Invalid offset, value too big (0x%08X)"), value);
/* Round up, since pc will be rounded down. */
newval |= (value + 2) >> 2;
case 9: /* SP load/store */
if (value & ~0x3fc)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset");
+ _("Invalid offset, value too big (0x%08X)"), value);
newval |= value >> 2;
break;
case 6: /* Word load/store */
if (value & ~0x7c)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset");
+ _("Invalid offset, value too big (0x%08X)"), value);
newval |= value << 4; /* 6 - 2 */
break;
case 7: /* Byte load/store */
if (value & ~0x1f)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset");
+ _("Invalid offset, value too big (0x%08X)"), value);
newval |= value << 6;
break;
case 8: /* Halfword load/store */
if (value & ~0x3e)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid offset");
+ _("Invalid offset, value too big (0x%08X)"), value);
newval |= value << 5; /* 6 - 1 */
break;
default:
- abort ();
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ "Unable to process relocation for thumb opcode: %lx",
+ (unsigned long) newval);
+ break;
}
md_number_to_chars (buf, newval, THUMB_SIZE);
break;
{
if (value & ~0x1fc)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid immediate for stack address calculation");
+ _("Invalid immediate for stack address calculation"));
newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
newval |= value >> 2;
}
if (subtract ||
value & ~0x3fc)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid immediate for address calculation (value = 0x%08X)", value);
+ _("Invalid immediate for address calculation (value = 0x%08lX)"),
+ (unsigned long) value);
newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
newval |= rd << 8;
newval |= value >> 2;
{
if (value & ~0xff)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid 8bit immediate");
+ _("Invalid 8bit immediate"));
newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
newval |= (rd << 8) | value;
}
{
if (value & ~0x7)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid 3bit immediate");
+ _("Invalid 3bit immediate"));
newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
newval |= rd | (rs << 3) | (value << 6);
}
case 0x05: /* 8bit immediate CMP */
if (value < 0 || value > 255)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Invalid immediate: %d is too large", value);
+ _("Invalid immediate: %ld is too large"),
+ (long) value);
newval |= value;
break;
/* 5bit shift value (0..31) */
if (value < 0 || value > 31)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Illegal Thumb shift value: %d", value);
+ _("Illegal Thumb shift value: %ld"), (long) value);
newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf03f;
newval |= value << 6;
md_number_to_chars (buf, newval , THUMB_SIZE);
break;
+ case BFD_RELOC_VTABLE_INHERIT:
+ case BFD_RELOC_VTABLE_ENTRY:
+ fixP->fx_done = 0;
+ return 1;
+
case BFD_RELOC_NONE:
default:
as_bad_where (fixP->fx_file, fixP->fx_line,
- "Bad relocation fixup type (%d)\n", fixP->fx_r_type);
+ _("Bad relocation fixup type (%d)"), fixP->fx_r_type);
}
return 1;
format. */
arelent *
tc_gen_reloc (section, fixp)
- asection *section;
- fixS *fixp;
+ asection * section;
+ fixS * fixp;
{
- arelent *reloc;
+ arelent * reloc;
bfd_reloc_code_real_type code;
reloc = (arelent *) xmalloc (sizeof (arelent));
- reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
+ reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
/* @@ Why fx_addnumber sometimes and fx_offset other times? */
+#ifndef OBJ_ELF
if (fixp->fx_pcrel == 0)
reloc->addend = fixp->fx_offset;
else
reloc->addend = fixp->fx_offset = reloc->address;
+#else /* OBJ_ELF */
+ reloc->addend = fixp->fx_offset;
+#endif
switch (fixp->fx_r_type)
{
case BFD_RELOC_THUMB_PCREL_BRANCH9:
case BFD_RELOC_THUMB_PCREL_BRANCH12:
case BFD_RELOC_THUMB_PCREL_BRANCH23:
+ case BFD_RELOC_VTABLE_ENTRY:
+ case BFD_RELOC_VTABLE_INHERIT:
code = fixp->fx_r_type;
break;
case BFD_RELOC_ARM_LITERAL:
case BFD_RELOC_ARM_HWLITERAL:
/* If this is called then the a literal has been referenced across
- a section boundry - possibly due to an implicit dump */
+ a section boundary - possibly due to an implicit dump */
as_bad_where (fixp->fx_file, fixp->fx_line,
- "Literal referenced across section boundry (Implicit dump?)");
+ _("Literal referenced across section boundary (Implicit dump?)"));
return NULL;
- case BFD_RELOC_ARM_IMMEDIATE:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (IMMEDIATE)",
- fixp->fx_r_type);
- return NULL;
-
- case BFD_RELOC_ARM_OFFSET_IMM:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (OFFSET_IMM)",
- fixp->fx_r_type);
- return NULL;
+#ifdef OBJ_ELF
+ case BFD_RELOC_ARM_GOT32:
+ case BFD_RELOC_ARM_GOTOFF:
+ case BFD_RELOC_ARM_PLT32:
+ code = fixp->fx_r_type;
+ break;
+#endif
- case BFD_RELOC_ARM_OFFSET_IMM8:
+ case BFD_RELOC_ARM_IMMEDIATE:
as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (OFFSET_IMM8)",
+ _("Internal_relocation (type %d) not fixed up (IMMEDIATE)"),
fixp->fx_r_type);
return NULL;
- case BFD_RELOC_ARM_SHIFT_IMM:
+ case BFD_RELOC_ARM_ADRL_IMMEDIATE:
as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (SHIFT_IMM)",
+ _("ADRL used for a symbol not defined in the same file"),
fixp->fx_r_type);
return NULL;
- case BFD_RELOC_ARM_SWI:
+ case BFD_RELOC_ARM_OFFSET_IMM:
as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (SWI)",
+ _("Internal_relocation (type %d) not fixed up (OFFSET_IMM)"),
fixp->fx_r_type);
return NULL;
- case BFD_RELOC_ARM_MULTI:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (MULTI)",
- fixp->fx_r_type);
- return NULL;
+ default:
+ {
+ char * type;
+ switch (fixp->fx_r_type)
+ {
+ case BFD_RELOC_ARM_IMMEDIATE: type = "IMMEDIATE"; break;
+ case BFD_RELOC_ARM_OFFSET_IMM: type = "OFFSET_IMM"; 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_SWI: type = "SWI"; break;
+ case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
+ case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
+ case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
+ case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
+ case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
+ case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
+ default: type = _("<unknown>"); break;
+ }
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("Can not represent %s relocation in this object file format (%d)"),
+ type, fixp->fx_pcrel);
+ return NULL;
+ }
+ }
- case BFD_RELOC_ARM_CP_OFF_IMM:
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (CP_OFF_IMM)",
- fixp->fx_r_type);
- return NULL;
+#ifdef OBJ_ELF
+ if (code == BFD_RELOC_32_PCREL
+ && GOT_symbol
+ && fixp->fx_addsy == GOT_symbol)
+ {
+ code = BFD_RELOC_ARM_GOTPC;
+ reloc->addend = fixp->fx_offset = reloc->address;
+ }
+#endif
+
+ reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
- case BFD_RELOC_ARM_THUMB_OFFSET:
+ if (reloc->howto == NULL)
+ {
as_bad_where (fixp->fx_file, fixp->fx_line,
- "Internal_relocation (type %d) not fixed up (THUMB_OFFSET)",
- fixp->fx_r_type);
+ _("Can not represent %s relocation in this object file format"),
+ bfd_get_reloc_code_name (code));
return NULL;
-
- default:
- abort ();
}
- reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
- assert (reloc->howto != 0);
+ /* HACK: Since arm ELF uses Rel instead of Rela, encode the
+ vtable entry to be used in the relocation's section offset. */
+ if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ reloc->address = fixp->fx_offset;
return reloc;
}
-CONST int md_short_jump_size = 4;
-CONST int md_long_jump_size = 4;
-
-/* These should never be called on the arm */
-void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- as_fatal ("md_create_long_jump\n");
-}
-
-void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- as_fatal ("md_create_short_jump\n");
-}
-
int
md_estimate_size_before_relax (fragP, segtype)
- fragS *fragP;
- segT segtype;
+ fragS * fragP;
+ segT segtype;
{
- as_fatal ("md_estimate_size_before_relax\n");
- return (1);
+ as_fatal (_("md_estimate_size_before_relax\n"));
+ return 1;
}
static void
-output_inst (str)
- char *str;
+output_inst PARAMS ((void))
{
- char *to = NULL;
+ char * to = NULL;
if (inst.error)
{
- as_bad ("%s -- statement `%s'\n", inst.error, str);
+ as_bad (inst.error);
return;
}
to = frag_more (inst.size);
+
if (thumb_mode && (inst.size > THUMB_SIZE))
{
assert (inst.size == (2 * THUMB_SIZE));
md_number_to_chars (to, inst.instruction >> 16, THUMB_SIZE);
- md_number_to_chars (to + 2, inst.instruction, THUMB_SIZE);
+ md_number_to_chars (to + THUMB_SIZE, inst.instruction, THUMB_SIZE);
+ }
+ else if (inst.size > INSN_SIZE)
+ {
+ assert (inst.size == (2 * INSN_SIZE));
+ md_number_to_chars (to, inst.instruction, INSN_SIZE);
+ md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
}
else
md_number_to_chars (to, inst.instruction, inst.size);
if (inst.reloc.type != BFD_RELOC_NONE)
fix_new_arm (frag_now, to - frag_now->fr_literal,
- inst.size, &inst.reloc.exp, inst.reloc.pc_rel,
+ inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
inst.reloc.type);
return;
void
md_assemble (str)
- char *str;
+ char * str;
{
- char c;
- char *p, *q, *start;
+ char c;
+ char * p;
+ char * q;
+ char * start;
- /* Align the instruction */
- /* this may not be the right thing to do but ... */
+ /* Align the instruction.
+ This may not be the right thing to do but ... */
/* arm_align (2, 0); */
listing_prev_line (); /* Defined in listing.h */
- /* Align the previous label if needed */
+ /* Align the previous label if needed. */
if (last_label_seen != NULL)
{
- last_label_seen->sy_frag = frag_now;
+ symbol_set_frag (last_label_seen, frag_now);
S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
S_SET_SEGMENT (last_label_seen, now_seg);
}
memset (&inst, '\0', sizeof (inst));
inst.reloc.type = BFD_RELOC_NONE;
- if (*str == ' ')
- str++; /* Skip leading white space */
-
- /* scan up to the end of the op-code, which must end in white space or
- end of string */
+ skip_whitespace (str);
+
+ /* Scan up to the end of the op-code, which must end in white space or
+ end of string. */
for (start = p = str; *p != '\0'; p++)
if (*p == ' ')
break;
if (p == str)
{
- as_bad ("No operator -- statement `%s'\n", str);
+ as_bad (_("No operator -- statement `%s'\n"), str);
return;
}
if (thumb_mode)
{
- CONST struct thumb_opcode *opcode;
+ CONST struct thumb_opcode * opcode;
c = *p;
*p = '\0';
opcode = (CONST struct thumb_opcode *) hash_find (arm_tops_hsh, str);
*p = c;
+
if (opcode)
{
inst.instruction = opcode->value;
inst.size = opcode->size;
(*opcode->parms)(p);
- output_inst (start);
+ output_inst ();
return;
}
}
else
{
- CONST struct asm_opcode *opcode;
+ CONST struct asm_opcode * opcode;
inst.size = INSN_SIZE;
/* p now points to the end of the opcode, probably white space, but we
have to break the opcode up in case it contains condionals and flags;
keep trying with progressively smaller basic instructions until one
- matches, or we run out of opcode. */
+ matches, or we run out of opcode. */
q = (p - str > LONGEST_INST) ? str + LONGEST_INST : p;
for (; q != str; q--)
{
*q = '\0';
opcode = (CONST struct asm_opcode *) hash_find (arm_ops_hsh, str);
*q = c;
+
if (opcode && opcode->template)
{
unsigned long flag_bits = 0;
- char *r;
+ char * r;
- /* Check that this instruction is supported for this CPU */
+ /* Check that this instruction is supported for this CPU. */
if ((opcode->variants & cpu_variant) == 0)
goto try_shorter;
inst.instruction = opcode->value;
- if (q == p) /* Just a simple opcode */
+ if (q == p) /* Just a simple opcode. */
{
if (opcode->comp_suffix != 0)
- as_bad ("Opcode `%s' must have suffix from <%s>\n", str,
+ as_bad (_("Opcode `%s' must have suffix from <%s>\n"), str,
opcode->comp_suffix);
else
{
inst.instruction |= COND_ALWAYS;
(*opcode->parms)(q, 0);
}
- output_inst (start);
+ output_inst ();
return;
}
- /* Now check for a conditional */
+ /* Now check for a conditional. */
r = q;
if (p - r >= 2)
{
{
if (cond->value == 0xf0000000)
as_tsktsk (
-"Warning: Use of the 'nv' conditional is deprecated\n");
+_("Warning: Use of the 'nv' conditional is deprecated\n"));
inst.instruction |= cond->value;
r += 2;
else
inst.instruction |= COND_ALWAYS;
- /* if there is a compulsory suffix, it should come here, before
- any optional flags. */
+ /* If there is a compulsory suffix, it should come here, before
+ any optional flags. */
if (opcode->comp_suffix)
{
CONST char *s = opcode->comp_suffix;
if (*s == '\0')
{
- as_bad ("Opcode `%s' must have suffix from <%s>\n", str,
+ as_bad (_("Opcode `%s' must have suffix from <%s>\n"), str,
opcode->comp_suffix);
return;
}
for (flagno = 0; flag[flagno].template; flagno++)
{
- if (! strcmp (r, flag[flagno].template))
+ if (streq (r, flag[flagno].template))
{
flag_bits |= flag[flagno].set_bits;
break;
}
(*opcode->parms) (p, flag_bits);
- output_inst (start);
+ output_inst ();
return;
}
}
/* It wasn't an instruction, but it might be a register alias of the form
- alias .req reg
- */
+ alias .req reg */
q = p;
- while (*q == ' ')
- q++;
+ skip_whitespace (q);
c = *p;
*p = '\0';
if (*q && !strncmp (q, ".req ", 4))
{
- int reg;
- if ((reg = arm_reg_parse (&str)) == FAIL)
- {
- char *r;
+ int reg;
+ char * copy_of_str = str;
+ char * r;
- q += 4;
- while (*q == ' ')
- q++;
+ q += 4;
+ skip_whitespace (q);
- for (r = q; *r != '\0'; r++)
- if (*r == ' ')
- break;
+ for (r = q; *r != '\0'; r++)
+ if (*r == ' ')
+ break;
+
+ if (r != q)
+ {
+ int regnum;
+ char d = *r;
- if (r != q)
- {
- int regnum;
- char d = *r;
+ *r = '\0';
+ regnum = arm_reg_parse (& q);
+ *r = d;
- *r = '\0';
- regnum = arm_reg_parse (&q);
- *r = d;
+ reg = arm_reg_parse (& str);
+
+ if (reg == FAIL)
+ {
if (regnum != FAIL)
- {
- insert_reg_alias (str, regnum);
- *p = c;
- return;
- }
+ insert_reg_alias (str, regnum);
+ else
+ as_warn (_("register '%s' does not exist"), q);
+ }
+ else if (regnum != FAIL)
+ {
+ if (reg != regnum)
+ as_warn (_("ignoring redefinition of register alias '%s'"), copy_of_str );
+
+ /* Do not warn about redefinitions to the same alias. */
}
+ else
+ as_warn (_("ignoring redefinition of register alias '%s' to non-existant register '%s'"),
+ copy_of_str, q);
}
else
- {
- *p = c;
- return;
- }
+ as_warn (_("ignoring incomplete .req pseuso op"));
+
+ *p = c;
+ return;
}
*p = c;
- as_bad ("bad instruction `%s'", start);
+ as_bad (_("bad instruction `%s'"), start);
}
/*
* -m[arm]1 Currently not supported.
* -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
* -m[arm]3 Arm 3 processor
- * -m[arm]6, Arm 6 processors
- * -m[arm]7[t][[d]m] Arm 7 processors
+ * -m[arm]6[xx], Arm 6 processors
+ * -m[arm]7[xx][t][[d]m] Arm 7 processors
+ * -m[arm]8[10] Arm 8 processors
+ * -m[arm]9[20][tdmi] Arm 9 processors
+ * -mstrongarm[110[0]] StrongARM processors
+ * -m[arm]v[2345] Arm architecures
* -mall All (except the ARM1)
* FP variants:
* -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
* ARM Procedure Calling Standard:
* -mapcs-32 32 bit APCS
* -mapcs-26 26 bit APCS
+ * -mapcs-float Pass floats in float regs
+ * -mapcs-reentrant Position independent code
+ * -mthumb-interwork Code supports Arm/Thumb interworking
+ * -moabi Old ELF ABI
*/
-CONST char *md_shortopts = "m:";
+CONST char * md_shortopts = "m:k";
struct option md_longopts[] =
{
#ifdef ARM_BI_ENDIAN
{"EB", no_argument, NULL, OPTION_EB},
#define OPTION_EL (OPTION_MD_BASE + 1)
{"EL", no_argument, NULL, OPTION_EL},
+#ifdef OBJ_ELF
+#define OPTION_OABI (OPTION_MD_BASE +2)
+ {"oabi", no_argument, NULL, OPTION_OABI},
+#endif
#endif
{NULL, no_argument, NULL, 0}
};
int
md_parse_option (c, arg)
- int c;
- char *arg;
+ int c;
+ char * arg;
{
- char *str = arg;
+ char * str = arg;
switch (c)
{
switch (*str)
{
case 'f':
- if (! strcmp (str, "fpa10"))
+ if (streq (str, "fpa10"))
cpu_variant = (cpu_variant & ~FPU_ALL) | FPU_FPA10;
- else if (! strcmp (str, "fpa11"))
+ else if (streq (str, "fpa11"))
cpu_variant = (cpu_variant & ~FPU_ALL) | FPU_FPA11;
- else if (! strcmp (str, "fpe-old"))
+ else if (streq (str, "fpe-old"))
cpu_variant = (cpu_variant & ~FPU_ALL) | FPU_CORE;
else
goto bad;
break;
case 'n':
- if (! strcmp (str, "no-fpu"))
+ if (streq (str, "no-fpu"))
cpu_variant &= ~FPU_ALL;
break;
+#ifdef OBJ_ELF
+ case 'o':
+ if (streq (str, "oabi"))
+ target_oabi = true;
+ break;
+#endif
+
case 't':
/* Limit assembler to generating only Thumb instructions: */
- if (! strcmp (str, "thumb"))
+ if (streq (str, "thumb"))
{
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_THUMB;
cpu_variant = (cpu_variant & ~FPU_ALL) | FPU_NONE;
thumb_mode = 1;
}
+ else if (streq (str, "thumb-interwork"))
+ {
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_THUMB | ARM_ARCH_V4;
+#if defined OBJ_COFF || defined OBJ_ELF
+ support_interwork = true;
+#endif
+ }
else
goto bad;
break;
default:
- if (! strcmp (str, "all"))
+ if (streq (str, "all"))
{
cpu_variant = ARM_ALL | FPU_ALL;
return 1;
}
-#ifdef OBJ_COFF
- if (! strcmp (str, "apcs-32"))
- {
- uses_apcs_26 = false;
- return 1;
- }
- else if (! strcmp (str, "apcs-26"))
+#if defined OBJ_COFF || defined OBJ_ELF
+ if (! strncmp (str, "apcs-", 5))
{
- uses_apcs_26 = true;
- return 1;
- }
+ /* GCC passes on all command line options starting "-mapcs-..."
+ to us, so we must parse them here. */
+
+ str += 5;
+
+ if (streq (str, "32"))
+ {
+ uses_apcs_26 = false;
+ return 1;
+ }
+ else if (streq (str, "26"))
+ {
+ uses_apcs_26 = true;
+ return 1;
+ }
+ else if (streq (str, "frame"))
+ {
+ /* Stack frames are being generated - does not affect
+ linkage of code. */
+ return 1;
+ }
+ else if (streq (str, "stack-check"))
+ {
+ /* Stack checking is being performed - does not affect
+ linkage, but does require that the functions
+ __rt_stkovf_split_small and __rt_stkovf_split_big be
+ present in the final link. */
+
+ return 1;
+ }
+ else if (streq (str, "float"))
+ {
+ /* Floating point arguments are being passed in the floating
+ point registers. This does affect linking, since this
+ version of the APCS is incompatible with the version that
+ passes floating points in the integer registers. */
+
+ uses_apcs_float = true;
+ return 1;
+ }
+ else if (streq (str, "reentrant"))
+ {
+ /* Reentrant code has been generated. This does affect
+ linking, since there is no point in linking reentrant/
+ position independent code with absolute position code. */
+ pic_code = true;
+ return 1;
+ }
+
+ as_bad (_("Unrecognised APCS switch -m%s"), arg);
+ return 0;
+ }
#endif
/* Strip off optional "arm" */
if (! strncmp (str, "arm", 3))
switch (*str)
{
case '1':
- if (! strcmp (str, "1"))
+ if (streq (str, "1"))
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_1;
else
goto bad;
break;
case '2':
- if (! strcmp (str, "2"))
+ if (streq (str, "2"))
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_2;
- else if (! strcmp (str, "250"))
+ else if (streq (str, "250"))
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_250;
else
goto bad;
break;
case '3':
- if (! strcmp (str, "3"))
+ if (streq (str, "3"))
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_3;
else
goto bad;
break;
case '6':
- if (! strcmp (str, "6"))
- cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_6;
- else
- goto bad;
+ switch (strtol (str, NULL, 10))
+ {
+ case 6:
+ case 60:
+ case 600:
+ case 610:
+ case 620:
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_6;
+ break;
+ default:
+ goto bad;
+ }
break;
case '7':
- str++; /* eat the '7' */
+ switch (strtol (str, & str, 10)) /* Eat the processor name */
+ {
+ case 7:
+ case 70:
+ case 700:
+ case 710:
+ case 7100:
+ case 7500:
+ break;
+ default:
+ goto bad;
+ }
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_7;
for (; *str; str++)
{
- switch (*str)
+ switch (* str)
{
case 't':
- cpu_variant |= ARM_THUMB;
+ cpu_variant |= (ARM_THUMB | ARM_ARCH_V4);
break;
case 'm':
cpu_variant |= ARM_LONGMUL;
break;
- case 'd': /* debug */
- case 'i': /* embedded ice */
- /* Included for completeness in ARM processor
- naming. */
+ case 'f': /* fe => fp enabled cpu. */
+ if (str[1] == 'e')
+ ++ str;
+ else
+ goto bad;
+
+ case 'c': /* Left over from 710c processor name. */
+ case 'd': /* Debug */
+ case 'i': /* Embedded ICE */
+ /* Included for completeness in ARM processor naming. */
break;
default:
}
break;
+ case '8':
+ if (streq (str, "8") || streq (str, "810"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_8 | ARM_ARCH_V4 | ARM_LONGMUL;
+ else
+ goto bad;
+ break;
+
+ case '9':
+ if (streq (str, "9"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_9 | ARM_ARCH_V4 | ARM_LONGMUL | ARM_THUMB;
+ else if (streq (str, "920"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_9 | ARM_ARCH_V4 | ARM_LONGMUL;
+ else if (streq (str, "920t"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_9 | ARM_ARCH_V4 | ARM_LONGMUL | ARM_THUMB;
+ else if (streq (str, "9tdmi"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_9 | ARM_ARCH_V4 | ARM_LONGMUL | ARM_THUMB;
+ else
+ goto bad;
+ break;
+
+ case 's':
+ if (streq (str, "strongarm")
+ || streq (str, "strongarm110")
+ || streq (str, "strongarm1100"))
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_8 | ARM_ARCH_V4 | ARM_LONGMUL;
+ else
+ goto bad;
+ break;
+
case 'v':
/* Select variant based on architecture rather than processor */
switch (*++str)
{
case 'a': cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_3; break;
case 0: cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_2; break;
- default: as_bad ("Invalid architecture variant -m%s", arg); break;
+ default: as_bad (_("Invalid architecture variant -m%s"), arg); break;
}
break;
{
case 'm': cpu_variant |= ARM_LONGMUL; break;
case 0: break;
- default: as_bad ("Invalid architecture variant -m%s", arg); break;
+ default: as_bad (_("Invalid architecture variant -m%s"), arg); break;
}
break;
case '4':
- cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_7;
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_ARCH_V4;
switch (*++str)
{
case 't': cpu_variant |= ARM_THUMB; break;
case 0: break;
- default: as_bad ("Invalid architecture variant -m%s", arg); break;
+ default: as_bad (_("Invalid architecture variant -m%s"), arg); break;
+ }
+ break;
+
+ case '5':
+ cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_ARCH_V5;
+
+ switch (*++str)
+ {
+ case 't': cpu_variant |= ARM_THUMB; break;
+ case 0: break;
+ default: as_bad (_("Invalid architecture variant -m%s"), arg); break;
}
break;
default:
- as_bad ("Invalid architecture variant -m%s", arg);
+ as_bad (_("Invalid architecture variant -m%s"), arg);
break;
}
break;
default:
bad:
- as_bad ("Invalid processor variant -m%s", arg);
+ as_bad (_("Invalid processor variant -m%s"), arg);
return 0;
}
}
break;
+ case 'k':
+ pic_code = 1;
+ break;
+
default:
return 0;
}
void
md_show_usage (fp)
- FILE *fp;
+ FILE * fp;
{
fprintf (fp,
-"-m[arm][1|2|250|3|6|7[t][d][m][i]] select processor variant\n\
--m[arm]v[2|2a|3|3m|4|4t] select architecture variant\n\
--mthumb\t\t\tonly allow Thumb instructions\n\
--mall\t\t\tallow any instruction\n\
--mfpa10, -mfpa11\tselect floating point architecture\n\
--mfpe-old\t\tdon't allow floating-point multiple instructions\n\
--mno-fpu\t\tdon't allow any floating-point instructions.\n");
-#ifdef OBJ_COFF
+_("\
+ ARM Specific Assembler Options:\n\
+ -m[arm][<processor name>] select processor variant\n\
+ -m[arm]v[2|2a|3|3m|4|4t|5]select architecture variant\n\
+ -mthumb only allow Thumb instructions\n\
+ -mthumb-interwork mark the assembled code as supporting interworking\n\
+ -mall allow any instruction\n\
+ -mfpa10, -mfpa11 select floating point architecture\n\
+ -mfpe-old don't allow floating-point multiple instructions\n\
+ -mno-fpu don't allow any floating-point instructions.\n"));
+ fprintf (fp,
+_("\
+ -k generate PIC code.\n"));
+#if defined OBJ_COFF || defined OBJ_ELF
fprintf (fp,
-"-mapcs-32, -mapcs-26\tspecify which ARM Procedure Calling Standard is in use\n");
+_("\
+ -mapcs-32, -mapcs-26 specify which ARM Procedure Calling Standard to use\n"));
+ fprintf (fp,
+_("\
+ -mapcs-float floating point args are passed in FP regs\n"));
+ fprintf (fp,
+_("\
+ -mapcs-reentrant the code is position independent/reentrant\n"));
+ #endif
+#ifdef OBJ_ELF
+ fprintf (fp,
+_("\
+ -moabi support the old ELF ABI\n"));
#endif
#ifdef ARM_BI_ENDIAN
fprintf (fp,
-"-EB\t\t\tassemble code for a big endian cpu\n\
--EL\t\t\tassemble code for a little endian cpu\n");
+_("\
+ -EB assemble code for a big endian cpu\n\
+ -EL assemble code for a little endian cpu\n"));
#endif
}
static void
fix_new_arm (frag, where, size, exp, pc_rel, reloc)
- fragS *frag;
- int where;
- short int size;
- expressionS *exp;
- int pc_rel;
- int reloc;
+ fragS * frag;
+ int where;
+ short int size;
+ expressionS * exp;
+ int pc_rel;
+ int reloc;
{
- fixS *new_fix;
- arm_fix_data *arm_data;
+ fixS * new_fix;
+ arm_fix_data * arm_data;
switch (exp->X_op)
{
}
/* Mark whether the fix is to a THUMB instruction, or an ARM instruction */
- arm_data = (arm_fix_data *) obstack_alloc (¬es, sizeof (arm_fix_data));
+ arm_data = (arm_fix_data *) obstack_alloc (& notes, sizeof (arm_fix_data));
new_fix->tc_fix_data = (PTR) arm_data;
arm_data->thumb_mode = thumb_mode;
return;
}
-/* A good place to do this, although this was probably not intended
- * for this kind of use. We need to dump the literal pool before
- * references are made to a null symbol pointer. */
+
+/* This fix_new is called by cons via TC_CONS_FIX_NEW. */
void
-arm_after_pass_hook ()
-{
- if (current_poolP != NULL)
+cons_fix_new_arm (frag, where, size, exp)
+ fragS * frag;
+ int where;
+ int size;
+ expressionS * exp;
+{
+ bfd_reloc_code_real_type type;
+ int pcrel = 0;
+
+ /* Pick a reloc ...
+ *
+ * @@ Should look at CPU word size.
+ */
+ switch (size)
{
- subseg_set (text_section, 0); /* Put it at the end of text section */
- s_ltorg (0);
- listing_prev_line ();
+ case 2:
+ type = BFD_RELOC_16;
+ break;
+ case 4:
+ default:
+ type = BFD_RELOC_32;
+ break;
+ case 8:
+ type = BFD_RELOC_64;
+ break;
}
+
+ fix_new_exp (frag, where, (int) size, exp, pcrel, type);
+}
+
+/* A good place to do this, although this was probably not intended
+ for this kind of use. We need to dump the literal pool before
+ references are made to a null symbol pointer. */
+void
+arm_cleanup ()
+{
+ if (current_poolP == NULL)
+ return;
+
+ subseg_set (text_section, 0); /* Put it at the end of text section. */
+ s_ltorg (0);
+ listing_prev_line ();
}
void
void
arm_frob_label (sym)
- symbolS *sym;
+ symbolS * sym;
{
last_label_seen = sym;
- ARM_SET_TYPE(sym,thumb_mode);
+
+ ARM_SET_THUMB (sym, thumb_mode);
+
+#if defined OBJ_COFF || defined OBJ_ELF
+ ARM_SET_INTERWORK (sym, support_interwork);
+#endif
+
+ if (label_is_thumb_function_name)
+ {
+ /* When the address of a Thumb function is taken the bottom
+ bit of that address should be set. This will allow
+ interworking between Arm and Thumb functions to work
+ correctly. */
+
+ THUMB_SET_FUNC (sym, 1);
+
+ label_is_thumb_function_name = false;
+ }
}
/* Adjust the symbol table. This marks Thumb symbols as distinct from
arm_adjust_symtab ()
{
#ifdef OBJ_COFF
- symbolS *sym;
+ symbolS * sym;
for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
{
- if (ARM_GET_TYPE(sym)) /* Thumb */
+ if (ARM_IS_THUMB (sym))
{
- switch (S_GET_STORAGE_CLASS (sym))
+ if (THUMB_IS_FUNC (sym))
+ {
+ /* Mark the symbol as a Thumb function. */
+ if ( S_GET_STORAGE_CLASS (sym) == C_STAT
+ || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
+ S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
+
+ else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
+ S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
+ else
+ as_bad (_("%s: unexpected function type: %d"),
+ S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
+ }
+ else switch (S_GET_STORAGE_CLASS (sym))
{
case C_EXT:
S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
break;
}
}
+
+ if (ARM_IS_INTERWORK (sym))
+ coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
}
#endif
+#ifdef OBJ_ELF
+ symbolS * sym;
+ elf_symbol_type * elf_sym;
+ char bind;
+
+ for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
+ {
+ if (ARM_IS_THUMB (sym))
+ {
+ if (THUMB_IS_FUNC (sym))
+ {
+ elf_sym = elf_symbol (symbol_get_bfdsym (sym));
+ bind = ELF_ST_BIND (elf_sym);
+ elf_sym->internal_elf_sym.st_info = ELF_ST_INFO (bind, STT_ARM_TFUNC);
+ }
+ }
+ }
+#endif
}
int
*input_line_pointer = 0;
return 1;
}
+
return 0;
}
char *
arm_canonicalize_symbol_name (name)
- char *name;
+ char * name;
{
int len;
if (thumb_mode && (len = strlen (name)) > 5
- && ! strcmp (name + len - 5, "/data"))
+ && streq (name + len - 5, "/data"))
+ *(name + len - 5) = 0;
+
+ return name;
+}
+
+boolean
+arm_validate_fix (fixP)
+ fixS * fixP;
+{
+ /* If the destination of the branch is a defined symbol which does not have
+ the THUMB_FUNC attribute, then we must be calling a function which has
+ the (interfacearm) attribute. We look for the Thumb entry point to that
+ function and change the branch to refer to that function instead. */
+ if ( fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
+ && fixP->fx_addsy != NULL
+ && S_IS_DEFINED (fixP->fx_addsy)
+ && ! THUMB_IS_FUNC (fixP->fx_addsy))
{
- *(name + len - 5) = 0;
+ fixP->fx_addsy = find_real_start (fixP->fx_addsy);
+ return true;
}
- return name;
+ return false;
+}
+
+#ifdef OBJ_ELF
+/* Relocations against Thumb function names must be left unadjusted,
+ so that the linker can use this information to correctly set the
+ bottom bit of their addresses. The MIPS version of this function
+ also prevents relocations that are mips-16 specific, but I do not
+ know why it does this.
+
+ FIXME:
+ There is one other problem that ought to be addressed here, but
+ which currently is not: Taking the address of a label (rather
+ than a function) and then later jumping to that address. Such
+ addresses also ought to have their bottom bit set (assuming that
+ they reside in Thumb code), but at the moment they will not. */
+
+boolean
+arm_fix_adjustable (fixP)
+ fixS * fixP;
+{
+ if (fixP->fx_addsy == NULL)
+ return 1;
+
+ /* Prevent all adjustments to global symbols. */
+ if (S_IS_EXTERN (fixP->fx_addsy))
+ return 0;
+
+ if (S_IS_WEAK (fixP->fx_addsy))
+ return 0;
+
+ if (THUMB_IS_FUNC (fixP->fx_addsy)
+ && fixP->fx_subsy == NULL)
+ return 0;
+
+ /* We need the symbol name for the VTABLE entries */
+ if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 0;
+
+ return 1;
+}
+
+const char *
+elf32_arm_target_format ()
+{
+ if (target_big_endian)
+ if (target_oabi)
+ return "elf32-bigarm-oabi";
+ else
+ return "elf32-bigarm";
+ else
+ if (target_oabi)
+ return "elf32-littlearm-oabi";
+ else
+ return "elf32-littlearm";
+}
+
+void
+armelf_frob_symbol (symp, puntp)
+ symbolS * symp;
+ int * puntp;
+{
+ elf_frob_symbol (symp, puntp);
+}
+
+int
+arm_force_relocation (fixp)
+ struct fix * fixp;
+{
+ if ( fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY
+ || fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
+ || fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23)
+ return 1;
+
+ return 0;
}
+
+static bfd_reloc_code_real_type
+arm_parse_reloc ()
+{
+ char id[16];
+ char * ip;
+ int i;
+ static struct
+ {
+ char * str;
+ int len;
+ bfd_reloc_code_real_type reloc;
+ }
+ reloc_map[] =
+ {
+#define MAP(str,reloc) { str, sizeof (str)-1, reloc }
+ MAP ("(got)", BFD_RELOC_ARM_GOT32),
+ MAP ("(gotoff)", BFD_RELOC_ARM_GOTOFF),
+ /* ScottB: Jan 30, 1998 */
+ /* Added support for parsing "var(PLT)" branch instructions */
+ /* generated by GCC for PLT relocs */
+ MAP ("(plt)", BFD_RELOC_ARM_PLT32),
+ NULL, 0, BFD_RELOC_UNUSED
+#undef MAP
+ };
+
+ for (i = 0, ip = input_line_pointer;
+ i < sizeof (id) && (isalnum (*ip) || ispunct (*ip));
+ i++, ip++)
+ id[i] = tolower (*ip);
+
+ for (i = 0; reloc_map[i].str; i++)
+ if (strncmp (id, reloc_map[i].str, reloc_map[i].len) == 0)
+ break;
+
+ input_line_pointer += reloc_map[i].len;
+
+ return reloc_map[i].reloc;
+}
+
+static void
+s_arm_elf_cons (nbytes)
+ int nbytes;
+{
+ expressionS exp;
+
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
+ if (is_it_end_of_statement ())
+ {
+ demand_empty_rest_of_line ();
+ return;
+ }
+
+#ifdef md_cons_align
+ md_cons_align (nbytes);
+#endif
+
+ do
+ {
+ bfd_reloc_code_real_type reloc;
+
+ expression (& exp);
+
+ if (exp.X_op == O_symbol
+ && * input_line_pointer == '('
+ && (reloc = arm_parse_reloc()) != BFD_RELOC_UNUSED)
+ {
+ reloc_howto_type * howto = bfd_reloc_type_lookup (stdoutput, reloc);
+ int size = bfd_get_reloc_size (howto);
+
+ if (size > nbytes)
+ as_bad ("%s relocations do not fit in %d bytes", howto->name, nbytes);
+ else
+ {
+ register char * p = frag_more ((int) nbytes);
+ int offset = nbytes - size;
+
+ fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
+ & exp, 0, reloc);
+ }
+ }
+ else
+ emit_expr (& exp, (unsigned int) nbytes);
+ }
+ while (*input_line_pointer++ == ',');
+
+ input_line_pointer--; /* Put terminator back into stream. */
+ demand_empty_rest_of_line ();
+}
+
+#endif /* OBJ_ELF */