diff options
Diffstat (limited to 'gas/config/tc-v850.c')
| -rw-r--r-- | gas/config/tc-v850.c | 2482 |
1 files changed, 0 insertions, 2482 deletions
diff --git a/gas/config/tc-v850.c b/gas/config/tc-v850.c deleted file mode 100644 index e53054d8780..00000000000 --- a/gas/config/tc-v850.c +++ /dev/null @@ -1,2482 +0,0 @@ -/* tc-v850.c -- Assembler code for the NEC V850 - Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation. - - This file is part of GAS, the GNU Assembler. - - GAS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GAS is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GAS; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <stdio.h> -#include <ctype.h> -#include "as.h" -#include "subsegs.h" -#include "opcode/v850.h" - -#define AREA_ZDA 0 -#define AREA_SDA 1 -#define AREA_TDA 2 - -/* sign-extend a 16-bit number */ -#define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000) - -/* Temporarily holds the reloc in a cons expression. */ -static bfd_reloc_code_real_type hold_cons_reloc; - -/* Set to TRUE if we want to be pedantic about signed overflows. */ -static boolean warn_signed_overflows = FALSE; -static boolean warn_unsigned_overflows = FALSE; - -/* Indicates the target BFD machine number. */ -static int machine = -1; - -/* Indicates the target processor(s) for the assemble. */ -static unsigned int processor_mask = -1; - - -/* Structure to hold information about predefined registers. */ -struct reg_name -{ - const char * name; - int value; -}; - -/* Generic assembler global variables which must be defined by all targets. */ - -/* Characters which always start a comment. */ -const char comment_chars[] = "#"; - -/* Characters which start a comment at the beginning of a line. */ -const char line_comment_chars[] = ";#"; - -/* Characters which may be used to separate multiple commands on a - single line. */ -const char line_separator_chars[] = ";"; - -/* Characters which are used to indicate an exponent in a floating - point number. */ -const char EXP_CHARS[] = "eE"; - -/* Characters which mean that a number is a floating point constant, - as in 0d1.0. */ -const char FLT_CHARS[] = "dD"; - - -const relax_typeS md_relax_table[] = -{ - /* Conditional branches. */ - {0xff, -0x100, 2, 1}, - {0x1fffff, -0x200000, 6, 0}, - /* Unconditional branches. */ - {0xff, -0x100, 2, 3}, - {0x1fffff, -0x200000, 4, 0}, -}; - - -static segT sdata_section = NULL; -static segT tdata_section = NULL; -static segT zdata_section = NULL; -static segT sbss_section = NULL; -static segT tbss_section = NULL; -static segT zbss_section = NULL; -static segT rosdata_section = NULL; -static segT rozdata_section = NULL; -static segT scommon_section = NULL; -static segT tcommon_section = NULL; -static segT zcommon_section = NULL; -static segT call_table_data_section = NULL; -static segT call_table_text_section = NULL; - -/* fixups */ -#define MAX_INSN_FIXUPS (5) -struct v850_fixup -{ - expressionS exp; - int opindex; - bfd_reloc_code_real_type reloc; -}; - -struct v850_fixup fixups [MAX_INSN_FIXUPS]; -static int fc; - - -void -v850_sdata (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (sdata_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_tdata (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (tdata_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_zdata (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (zdata_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_sbss (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (sbss_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_tbss (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (tbss_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_zbss (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (zbss_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_rosdata (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (rosdata_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_rozdata (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (rozdata_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_call_table_data (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (call_table_data_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_call_table_text (int ignore) -{ - obj_elf_section_change_hook(); - - subseg_set (call_table_text_section, (subsegT) get_absolute_expression ()); - - demand_empty_rest_of_line (); -} - -void -v850_bss (int ignore) -{ - register int temp = get_absolute_expression (); - - obj_elf_section_change_hook(); - - subseg_set (bss_section, (subsegT) temp); - - demand_empty_rest_of_line (); -} - -void -v850_offset (int ignore) -{ - int temp = get_absolute_expression (); - - temp -= frag_now_fix(); - - if (temp > 0) - (void) frag_more (temp); - - demand_empty_rest_of_line (); -} - -/* Copied from obj_elf_common() in gas/config/obj-elf.c */ -static void -v850_comm (area) - int area; -{ - char * name; - char c; - char * p; - int temp; - int size; - symbolS * symbolP; - int have_align; - - name = input_line_pointer; - c = get_symbol_end (); - - /* just after name is now '\0' */ - p = input_line_pointer; - *p = c; - - SKIP_WHITESPACE (); - - if (*input_line_pointer != ',') - { - as_bad (_("Expected comma after symbol-name")); - ignore_rest_of_line (); - return; - } - - input_line_pointer ++; /* skip ',' */ - - if ((temp = get_absolute_expression ()) < 0) - { - /* xgettext:c-format */ - as_bad (_(".COMMon length (%d.) < 0! Ignored."), temp); - ignore_rest_of_line (); - return; - } - - size = temp; - *p = 0; - symbolP = symbol_find_or_make (name); - *p = c; - - if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) - { - as_bad (_("Ignoring attempt to re-define symbol")); - ignore_rest_of_line (); - return; - } - - if (S_GET_VALUE (symbolP) != 0) - { - if (S_GET_VALUE (symbolP) != size) - { - /* xgettext:c-format */ - as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %d."), - S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size); - } - } - - know (symbol_get_frag (symbolP) == & zero_address_frag); - - if (*input_line_pointer != ',') - have_align = 0; - else - { - have_align = 1; - input_line_pointer++; - SKIP_WHITESPACE (); - } - - if (! have_align || *input_line_pointer != '"') - { - if (! have_align) - temp = 0; - else - { - temp = get_absolute_expression (); - - if (temp < 0) - { - temp = 0; - as_warn (_("Common alignment negative; 0 assumed")); - } - } - - if (symbol_get_obj (symbolP)->local) - { - segT old_sec; - int old_subsec; - char * pfrag; - int align; - flagword applicable; - - old_sec = now_seg; - old_subsec = now_subseg; - - applicable = bfd_applicable_section_flags (stdoutput); - - applicable &= SEC_ALLOC; - - switch (area) - { - case AREA_SDA: - if (sbss_section == NULL) - { - sbss_section = subseg_new (".sbss", 0); - - bfd_set_section_flags (stdoutput, sbss_section, applicable); - - seg_info (sbss_section)->bss = 1; - } - break; - - case AREA_ZDA: - if (zbss_section == NULL) - { - zbss_section = subseg_new (".zbss", 0); - - bfd_set_section_flags (stdoutput, sbss_section, applicable); - - seg_info (zbss_section)->bss = 1; - } - break; - - case AREA_TDA: - if (tbss_section == NULL) - { - tbss_section = subseg_new (".tbss", 0); - - bfd_set_section_flags (stdoutput, tbss_section, applicable); - - seg_info (tbss_section)->bss = 1; - } - break; - } - - if (temp) - { - /* convert to a power of 2 alignment */ - for (align = 0; (temp & 1) == 0; temp >>= 1, ++align) - ; - - if (temp != 1) - { - as_bad (_("Common alignment not a power of 2")); - ignore_rest_of_line (); - return; - } - } - else - align = 0; - - switch (area) - { - case AREA_SDA: - record_alignment (sbss_section, align); - obj_elf_section_change_hook(); - subseg_set (sbss_section, 0); - break; - - case AREA_ZDA: - record_alignment (zbss_section, align); - obj_elf_section_change_hook(); - subseg_set (zbss_section, 0); - break; - - case AREA_TDA: - record_alignment (tbss_section, align); - obj_elf_section_change_hook(); - subseg_set (tbss_section, 0); - break; - - default: - abort(); - } - - if (align) - frag_align (align, 0, 0); - - switch (area) - { - case AREA_SDA: - if (S_GET_SEGMENT (symbolP) == sbss_section) - symbol_get_frag (symbolP)->fr_symbol = 0; - break; - - case AREA_ZDA: - if (S_GET_SEGMENT (symbolP) == zbss_section) - symbol_get_frag (symbolP)->fr_symbol = 0; - break; - - case AREA_TDA: - if (S_GET_SEGMENT (symbolP) == tbss_section) - symbol_get_frag (symbolP)->fr_symbol = 0; - break; - - default: - abort (); - } - - symbol_set_frag (symbolP, frag_now); - pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, - (offsetT) size, (char *) 0); - *pfrag = 0; - S_SET_SIZE (symbolP, size); - - switch (area) - { - case AREA_SDA: - S_SET_SEGMENT (symbolP, sbss_section); - break; - - case AREA_ZDA: - S_SET_SEGMENT (symbolP, zbss_section); - break; - - case AREA_TDA: - S_SET_SEGMENT (symbolP, tbss_section); - break; - - default: - abort(); - } - - S_CLEAR_EXTERNAL (symbolP); - obj_elf_section_change_hook(); - subseg_set (old_sec, old_subsec); - } - else - { - allocate_common: - S_SET_VALUE (symbolP, (valueT) size); - S_SET_ALIGN (symbolP, temp); - S_SET_EXTERNAL (symbolP); - - switch (area) - { - case AREA_SDA: - if (scommon_section == NULL) - { - flagword applicable; - - applicable = bfd_applicable_section_flags (stdoutput); - - scommon_section = subseg_new (".scommon", 0); - - bfd_set_section_flags (stdoutput, scommon_section, applicable - & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA - | SEC_HAS_CONTENTS) | SEC_IS_COMMON); - } - S_SET_SEGMENT (symbolP, scommon_section); - break; - - case AREA_ZDA: - if (zcommon_section == NULL) - { - flagword applicable; - - applicable = bfd_applicable_section_flags (stdoutput); - - zcommon_section = subseg_new (".zcommon", 0); - - bfd_set_section_flags (stdoutput, zcommon_section, applicable - & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA - | SEC_HAS_CONTENTS) | SEC_IS_COMMON); - } - S_SET_SEGMENT (symbolP, zcommon_section); - break; - - case AREA_TDA: - if (tcommon_section == NULL) - { - flagword applicable; - - applicable = bfd_applicable_section_flags (stdoutput); - - tcommon_section = subseg_new (".tcommon", 0); - - bfd_set_section_flags (stdoutput, tcommon_section, applicable - & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA - | SEC_HAS_CONTENTS) | SEC_IS_COMMON); - } - S_SET_SEGMENT (symbolP, tcommon_section); - break; - - default: - abort(); - } - } - } - else - { - input_line_pointer++; - /* @@ Some use the dot, some don't. Can we get some consistency?? */ - if (*input_line_pointer == '.') - input_line_pointer++; - /* @@ Some say data, some say bss. */ - if (strncmp (input_line_pointer, "bss\"", 4) - && strncmp (input_line_pointer, "data\"", 5)) - { - while (*--input_line_pointer != '"') - ; - input_line_pointer--; - goto bad_common_segment; - } - while (*input_line_pointer++ != '"') - ; - goto allocate_common; - } - - symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; - - demand_empty_rest_of_line (); - return; - - { - bad_common_segment: - p = input_line_pointer; - while (*p && *p != '\n') - p++; - c = *p; - *p = '\0'; - as_bad (_("bad .common segment %s"), input_line_pointer + 1); - *p = c; - input_line_pointer = p; - ignore_rest_of_line (); - return; - } -} - -void -set_machine (int number) -{ - machine = number; - bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine); - - switch (machine) - { - case 0: processor_mask = PROCESSOR_V850; break; - case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break; - case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break; - } -} - -/* The target specific pseudo-ops which we support. */ -const pseudo_typeS md_pseudo_table[] = -{ - {"sdata", v850_sdata, 0}, - {"tdata", v850_tdata, 0}, - {"zdata", v850_zdata, 0}, - {"sbss", v850_sbss, 0}, - {"tbss", v850_tbss, 0}, - {"zbss", v850_zbss, 0}, - {"rosdata", v850_rosdata, 0}, - {"rozdata", v850_rozdata, 0}, - {"bss", v850_bss, 0}, - {"offset", v850_offset, 0}, - {"word", cons, 4}, - {"zcomm", v850_comm, AREA_ZDA}, - {"scomm", v850_comm, AREA_SDA}, - {"tcomm", v850_comm, AREA_TDA}, - {"v850", set_machine, 0}, - {"call_table_data", v850_call_table_data, 0}, - {"call_table_text", v850_call_table_text, 0}, - {"v850e", set_machine, bfd_mach_v850e}, - {"v850ea", set_machine, bfd_mach_v850ea}, - { NULL, NULL, 0} -}; - -/* Opcode hash table. */ -static struct hash_control *v850_hash; - -/* This table is sorted. Suitable for searching by a binary search. */ -static const struct reg_name pre_defined_registers[] = -{ - { "ep", 30 }, /* ep - element ptr */ - { "gp", 4 }, /* gp - global ptr */ - { "hp", 2 }, /* hp - handler stack ptr */ - { "lp", 31 }, /* lp - link ptr */ - { "r0", 0 }, - { "r1", 1 }, - { "r10", 10 }, - { "r11", 11 }, - { "r12", 12 }, - { "r13", 13 }, - { "r14", 14 }, - { "r15", 15 }, - { "r16", 16 }, - { "r17", 17 }, - { "r18", 18 }, - { "r19", 19 }, - { "r2", 2 }, - { "r20", 20 }, - { "r21", 21 }, - { "r22", 22 }, - { "r23", 23 }, - { "r24", 24 }, - { "r25", 25 }, - { "r26", 26 }, - { "r27", 27 }, - { "r28", 28 }, - { "r29", 29 }, - { "r3", 3 }, - { "r30", 30 }, - { "r31", 31 }, - { "r4", 4 }, - { "r5", 5 }, - { "r6", 6 }, - { "r7", 7 }, - { "r8", 8 }, - { "r9", 9 }, - { "sp", 3 }, /* sp - stack ptr */ - { "tp", 5 }, /* tp - text ptr */ - { "zero", 0 }, -}; -#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name)) - - -static const struct reg_name system_registers[] = -{ - { "ctbp", 20 }, - { "ctpc", 16 }, - { "ctpsw", 17 }, - { "dbpc", 18 }, - { "dbpsw", 19 }, - { "ecr", 4 }, - { "eipc", 0 }, - { "eipsw", 1 }, - { "fepc", 2 }, - { "fepsw", 3 }, - { "psw", 5 }, -}; -#define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name)) - -static const struct reg_name system_list_registers[] = -{ - {"PS", 5 }, - {"SR", 0 + 1} -}; -#define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name)) - -static const struct reg_name cc_names[] = -{ - { "c", 0x1 }, - { "e", 0x2 }, - { "ge", 0xe }, - { "gt", 0xf }, - { "h", 0xb }, - { "l", 0x1 }, - { "le", 0x7 }, - { "lt", 0x6 }, - { "n", 0x4 }, - { "nc", 0x9 }, - { "ne", 0xa }, - { "nh", 0x3 }, - { "nl", 0x9 }, - { "ns", 0xc }, - { "nv", 0x8 }, - { "nz", 0xa }, - { "p", 0xc }, - { "s", 0x4 }, - { "sa", 0xd }, - { "t", 0x5 }, - { "v", 0x0 }, - { "z", 0x2 }, -}; -#define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name)) - -/* reg_name_search does a binary search of the given register table - to see if "name" is a valid regiter name. Returns the register - number from the array on success, or -1 on failure. */ - -static int -reg_name_search (regs, regcount, name, accept_numbers) - const struct reg_name * regs; - int regcount; - const char * name; - boolean accept_numbers; -{ - int middle, low, high; - int cmp; - symbolS * symbolP; - - /* If the register name is a symbol, then evaluate it. */ - if ((symbolP = symbol_find (name)) != NULL) - { - /* If the symbol is an alias for another name then use that. - If the symbol is an alias for a number, then return the number. */ - if (symbol_equated_p (symbolP)) - { - name = S_GET_NAME (symbol_get_value_expression (symbolP)->X_add_symbol); - } - else if (accept_numbers) - { - int reg = S_GET_VALUE (symbolP); - - if (reg >= 0 && reg <= 31) - return reg; - } - - /* Otherwise drop through and try parsing name normally. */ - } - - low = 0; - high = regcount - 1; - - do - { - middle = (low + high) / 2; - cmp = strcasecmp (name, regs[middle].name); - if (cmp < 0) - high = middle - 1; - else if (cmp > 0) - low = middle + 1; - else - return regs[middle].value; - } - while (low <= high); - return -1; -} - - -/* Summary of register_name(). - * - * in: Input_line_pointer points to 1st char of operand. - * - * out: A expressionS. - * The operand may have been a register: in this case, X_op == O_register, - * X_add_number is set to the register number, and truth is returned. - * Input_line_pointer->(next non-blank) char after operand, or is in - * its original state. - */ -static boolean -register_name (expressionP) - expressionS * expressionP; -{ - int reg_number; - char * name; - char * start; - char c; - - /* Find the spelling of the operand */ - start = name = input_line_pointer; - - c = get_symbol_end (); - - reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, - name, FALSE); - - * input_line_pointer = c; /* put back the delimiting char */ - - /* look to see if it's in the register table */ - if (reg_number >= 0) - { - expressionP->X_op = O_register; - expressionP->X_add_number = reg_number; - - /* make the rest nice */ - expressionP->X_add_symbol = NULL; - expressionP->X_op_symbol = NULL; - - return true; - } - else - { - /* reset the line as if we had not done anything */ - input_line_pointer = start; - - return false; - } -} - -/* Summary of system_register_name(). - * - * in: Input_line_pointer points to 1st char of operand. - * expressionP points to an expression structure to be filled in. - * accept_numbers is true iff numerical register names may be used. - * accept_list_names is true iff the special names PS and SR may be - * accepted. - * - * out: A expressionS structure in expressionP. - * The operand may have been a register: in this case, X_op == O_register, - * X_add_number is set to the register number, and truth is returned. - * Input_line_pointer->(next non-blank) char after operand, or is in - * its original state. - */ -static boolean -system_register_name (expressionP, accept_numbers, accept_list_names) - expressionS * expressionP; - boolean accept_numbers; - boolean accept_list_names; -{ - int reg_number; - char * name; - char * start; - char c; - - /* Find the spelling of the operand */ - start = name = input_line_pointer; - - c = get_symbol_end (); - reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name, - accept_numbers); - - * input_line_pointer = c; /* put back the delimiting char */ - - if (reg_number < 0 - && accept_numbers) - { - input_line_pointer = start; /* reset input_line pointer */ - - if (isdigit (* input_line_pointer)) - { - reg_number = strtol (input_line_pointer, & input_line_pointer, 10); - - /* Make sure that the register number is allowable. */ - if ( reg_number < 0 - || reg_number > 5 - && reg_number < 16 - || reg_number > 20 - ) - { - reg_number = -1; - } - } - else if (accept_list_names) - { - c = get_symbol_end (); - reg_number = reg_name_search (system_list_registers, - SYSREGLIST_NAME_CNT, name, FALSE); - - * input_line_pointer = c; /* put back the delimiting char */ - } - } - - /* look to see if it's in the register table */ - if (reg_number >= 0) - { - expressionP->X_op = O_register; - expressionP->X_add_number = reg_number; - - /* make the rest nice */ - expressionP->X_add_symbol = NULL; - expressionP->X_op_symbol = NULL; - - return true; - } - else - { - /* reset the line as if we had not done anything */ - input_line_pointer = start; - - return false; - } -} - -/* Summary of cc_name(). - * - * in: Input_line_pointer points to 1st char of operand. - * - * out: A expressionS. - * The operand may have been a register: in this case, X_op == O_register, - * X_add_number is set to the register number, and truth is returned. - * Input_line_pointer->(next non-blank) char after operand, or is in - * its original state. - */ -static boolean -cc_name (expressionP) - expressionS * expressionP; -{ - int reg_number; - char * name; - char * start; - char c; - - /* Find the spelling of the operand */ - start = name = input_line_pointer; - - c = get_symbol_end (); - reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE); - - * input_line_pointer = c; /* put back the delimiting char */ - - /* look to see if it's in the register table */ - if (reg_number >= 0) - { - expressionP->X_op = O_constant; - expressionP->X_add_number = reg_number; - - /* make the rest nice */ - expressionP->X_add_symbol = NULL; - expressionP->X_op_symbol = NULL; - - return true; - } - else - { - /* reset the line as if we had not done anything */ - input_line_pointer = start; - - return false; - } -} - -static void -skip_white_space (void) -{ - while ( * input_line_pointer == ' ' - || * input_line_pointer == '\t') - ++ input_line_pointer; -} - -/* Summary of parse_register_list (). - * - * in: Input_line_pointer points to 1st char of a list of registers. - * insn is the partially constructed instruction. - * operand is the operand being inserted. - * - * out: NULL if the parse completed successfully, otherwise a - * pointer to an error message is returned. If the parse - * completes the correct bit fields in the instruction - * will be filled in. - * - * Parses register lists with the syntax: - * - * { rX } - * { rX, rY } - * { rX - rY } - * { rX - rY, rZ } - * etc - * - * and also parses constant epxressions whoes bits indicate the - * registers in the lists. The LSB in the expression refers to - * the lowest numbered permissable register in the register list, - * and so on upwards. System registers are considered to be very - * high numbers. - * - */ -static char * -parse_register_list -( - unsigned long * insn, - const struct v850_operand * operand -) -{ - static int type1_regs[ 32 ] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 }; - static int type2_regs[ 32 ] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 }; - static int type3_regs[ 32 ] = { 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 }; - int * regs; - expressionS exp; - - - /* Select a register array to parse. */ - switch (operand->shift) - { - case 0xffe00001: regs = type1_regs; break; - case 0xfff8000f: regs = type2_regs; break; - case 0xfff8001f: regs = type3_regs; break; - default: - as_bad (_("unknown operand shift: %x\n"), operand->shift); - return _("internal failure in parse_register_list"); - } - - skip_white_space (); - - /* If the expression starts with a curly brace it is a register list. - Otherwise it is a constant expression, whoes bits indicate which - registers are to be included in the list. */ - - if (* input_line_pointer != '{') - { - int bits; - int reg; - int i; - - expression (& exp); - - if (exp.X_op != O_constant) - return _("constant expression or register list expected"); - - if (regs == type1_regs) - { - if (exp.X_add_number & 0xFFFFF000) - return _("high bits set in register list expression"); - - for (reg = 20; reg < 32; reg ++) - if (exp.X_add_number & (1 << (reg - 20))) - { - for (i = 0; i < 32; i++) - if (regs[i] == reg) - * insn |= (1 << i); - } - } - else if (regs == type2_regs) - { - if (exp.X_add_number & 0xFFFE0000) - return _("high bits set in register list expression"); - - for (reg = 1; reg < 16; reg ++) - if (exp.X_add_number & (1 << (reg - 1))) - { - for (i = 0; i < 32; i++) - if (regs[i] == reg) - * insn |= (1 << i); - } - - if (exp.X_add_number & (1 << 15)) - * insn |= (1 << 3); - - if (exp.X_add_number & (1 << 16)) - * insn |= (1 << 19); - } - else /* regs == type3_regs */ - { - if (exp.X_add_number & 0xFFFE0000) - return _("high bits set in register list expression"); - - for (reg = 16; reg < 32; reg ++) - if (exp.X_add_number & (1 << (reg - 16))) - { - for (i = 0; i < 32; i++) - if (regs[i] == reg) - * insn |= (1 << i); - } - - if (exp.X_add_number & (1 << 16)) - * insn |= (1 << 19); - } - - return NULL; - } - - input_line_pointer ++; - - /* Parse the register list until a terminator (closing curly brace or - new-line) is found. */ - for (;;) - { - if (register_name (& exp)) - { - int i; - - /* Locate the given register in the list, and if it is there, - insert the corresponding bit into the instruction. */ - for (i = 0; i < 32; i++) - { - if (regs[ i ] == exp.X_add_number) - { - * insn |= (1 << i); - break; - } - } - - if (i == 32) - { - return _("illegal register included in list"); - } - } - else if (system_register_name (& exp, true, true)) - { - if (regs == type1_regs) - { - return _("system registers cannot be included in list"); - } - else if (exp.X_add_number == 5) - { - if (regs == type2_regs) - return _("PSW cannot be included in list"); - else - * insn |= 0x8; - } - else if (exp.X_add_number < 4) - * insn |= 0x80000; - else - return _("High value system registers cannot be included in list"); - } - else if (* input_line_pointer == '}') - { - input_line_pointer ++; - break; - } - else if (* input_line_pointer == ',') - { - input_line_pointer ++; - continue; - } - else if (* input_line_pointer == '-') - { - /* We have encountered a range of registers: rX - rY */ - int j; - expressionS exp2; - - /* Skip the dash. */ - ++ input_line_pointer; - - /* Get the second register in the range. */ - if (! register_name (& exp2)) - { - return _("second register should follow dash in register list"); - exp2.X_add_number = exp.X_add_number; - } - - /* Add the rest of the registers in the range. */ - for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++) - { - int i; - - /* Locate the given register in the list, and if it is there, - insert the corresponding bit into the instruction. */ - for (i = 0; i < 32; i++) - { - if (regs[ i ] == j) - { - * insn |= (1 << i); - break; - } - } - - if (i == 32) - return _("illegal register included in list"); - } - } - else - { - break; - } - - skip_white_space (); - } - - return NULL; -} - -CONST char * md_shortopts = "m:"; - -struct option md_longopts[] = -{ - {NULL, no_argument, NULL, 0} -}; -size_t md_longopts_size = sizeof md_longopts; - - -void -md_show_usage (stream) - FILE * stream; -{ - fprintf (stream, _(" V850 options:\n")); - fprintf (stream, _(" -mwarn-signed-overflow Warn if signed immediate values overflow\n")); - fprintf (stream, _(" -mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n")); - fprintf (stream, _(" -mv850 The code is targeted at the v850\n")); - fprintf (stream, _(" -mv850e The code is targeted at the v850e\n")); - fprintf (stream, _(" -mv850ea The code is targeted at the v850ea\n")); - fprintf (stream, _(" -mv850any The code is generic, despite any processor specific instructions\n")); -} - -int -md_parse_option (c, arg) - int c; - char * arg; -{ - if (c != 'm') - { - /* xgettext:c-format */ - fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg); - return 0; - } - - if (strcmp (arg, "warn-signed-overflow") == 0) - { - warn_signed_overflows = TRUE; - } - else if (strcmp (arg, "warn-unsigned-overflow") == 0) - { - warn_unsigned_overflows = TRUE; - } - else if (strcmp (arg, "v850") == 0) - { - machine = 0; - processor_mask = PROCESSOR_V850; - } - else if (strcmp (arg, "v850e") == 0) - { - machine = bfd_mach_v850e; - processor_mask = PROCESSOR_V850E; - } - else if (strcmp (arg, "v850ea") == 0) - { - machine = bfd_mach_v850ea; - processor_mask = PROCESSOR_V850EA; - } - else if (strcmp (arg, "v850any") == 0) - { - machine = 0; /* Tell the world that this is for any v850 chip. */ - processor_mask = PROCESSOR_V850EA; /* But support instructions for the extended versions. */ - } - else - { - /* xgettext:c-format */ - fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg); - return 0; - } - - return 1; -} - -symbolS * -md_undefined_symbol (name) - char * name; -{ - return 0; -} - -char * -md_atof (type, litp, sizep) - int type; - char * litp; - int * sizep; -{ - int prec; - LITTLENUM_TYPE words[4]; - char * t; - int i; - - switch (type) - { - case 'f': - prec = 2; - break; - - case 'd': - prec = 4; - break; - - default: - *sizep = 0; - return _("bad call to md_atof"); - } - - t = atof_ieee (input_line_pointer, type, words); - if (t) - input_line_pointer = t; - - *sizep = prec * 2; - - for (i = prec - 1; i >= 0; i--) - { - md_number_to_chars (litp, (valueT) words[i], 2); - litp += 2; - } - - return NULL; -} - - -/* Very gross. */ -void -md_convert_frag (abfd, sec, fragP) - bfd * abfd; - asection * sec; - fragS * fragP; -{ - subseg_change (sec, 0); - - /* In range conditional or unconditional branch. */ - if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2) - { - fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, - fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode); - fragP->fr_var = 0; - fragP->fr_fix += 2; - } - /* Out of range conditional branch. Emit a branch around a jump. */ - else if (fragP->fr_subtype == 1) - { - unsigned char *buffer = - (unsigned char *) (fragP->fr_fix + fragP->fr_literal); - - /* Reverse the condition of the first branch. */ - buffer[0] ^= 0x08; - /* Mask off all the displacement bits. */ - buffer[0] &= 0x8f; - buffer[1] &= 0x07; - /* Now set the displacement bits so that we branch - around the unconditional branch. */ - buffer[0] |= 0x30; - - /* Now create the unconditional branch + fixup to the final - target. */ - md_number_to_chars (buffer + 2, 0x00000780, 4); - fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol, - fragP->fr_offset, 1, BFD_RELOC_UNUSED + - (int) fragP->fr_opcode + 1); - fragP->fr_var = 0; - fragP->fr_fix += 6; - } - /* Out of range unconditional branch. Emit a jump. */ - else if (fragP->fr_subtype == 3) - { - md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4); - fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol, - fragP->fr_offset, 1, BFD_RELOC_UNUSED + - (int) fragP->fr_opcode + 1); - fragP->fr_var = 0; - fragP->fr_fix += 4; - } - else - abort (); -} - -valueT -md_section_align (seg, addr) - asection * seg; - valueT addr; -{ - int align = bfd_get_section_alignment (stdoutput, seg); - return ((addr + (1 << align) - 1) & (-1 << align)); -} - -void -md_begin () -{ - char * prev_name = ""; - register const struct v850_opcode * op; - flagword applicable; - - if (strncmp (TARGET_CPU, "v850ea", 6) == 0) - { - if (machine == -1) - machine = bfd_mach_v850ea; - - if (processor_mask == -1) - processor_mask = PROCESSOR_V850EA; - } - else if (strncmp (TARGET_CPU, "v850e", 5) == 0) - { - if (machine == -1) - machine = bfd_mach_v850e; - - if (processor_mask == -1) - processor_mask = PROCESSOR_V850E; - } - else - if (strncmp (TARGET_CPU, "v850", 4) == 0) - { - if (machine == -1) - machine = 0; - - if (processor_mask == -1) - processor_mask = PROCESSOR_V850; - } - else - /* xgettext:c-format */ - as_bad (_("Unable to determine default target processor from string: %s"), - TARGET_CPU); - - v850_hash = hash_new(); - - /* Insert unique names into hash table. The V850 instruction set - has many identical opcode names that have different opcodes based - on the operands. This hash table then provides a quick index to - the first opcode with a particular name in the opcode table. */ - - op = v850_opcodes; - while (op->name) - { - if (strcmp (prev_name, op->name)) - { - prev_name = (char *) op->name; - hash_insert (v850_hash, op->name, (char *) op); - } - op++; - } - - bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine); - - applicable = bfd_applicable_section_flags (stdoutput); - - call_table_data_section = subseg_new (".call_table_data", 0); - bfd_set_section_flags (stdoutput, call_table_data_section, - applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC - | SEC_DATA | SEC_HAS_CONTENTS)); - - call_table_text_section = subseg_new (".call_table_text", 0); - bfd_set_section_flags (stdoutput, call_table_text_section, - applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY - | SEC_CODE)); - - /* Restore text section as the current default. */ - subseg_set (text_section, 0); -} - - -static bfd_reloc_code_real_type -handle_ctoff (const struct v850_operand * operand) -{ - if (operand == NULL) - return BFD_RELOC_V850_CALLT_16_16_OFFSET; - - if ( operand->bits != 6 - || operand->shift != 0) - { - as_bad (_("ctoff() relocation used on an instruction which does not support it")); - return BFD_RELOC_64; /* Used to indicate an error condition. */ - } - - return BFD_RELOC_V850_CALLT_6_7_OFFSET; -} - -static bfd_reloc_code_real_type -handle_sdaoff (const struct v850_operand * operand) -{ - if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET; - if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET; - if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET; - - if ( operand->bits != 16 - || operand->shift != 16) - { - as_bad (_("sdaoff() relocation used on an instruction which does not support it")); - return BFD_RELOC_64; /* Used to indicate an error condition. */ - } - - return BFD_RELOC_V850_SDA_16_16_OFFSET; -} - -static bfd_reloc_code_real_type -handle_zdaoff (const struct v850_operand * operand) -{ - if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET; - if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET; - if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET; - - if ( operand->bits != 16 - || operand->shift != 16) - { - as_bad (_("zdaoff() relocation used on an instruction which does not support it")); - return BFD_RELOC_64; /* Used to indicate an error condition. */ - } - - return BFD_RELOC_V850_ZDA_16_16_OFFSET; -} - -static bfd_reloc_code_real_type -handle_tdaoff (const struct v850_operand * operand) -{ - if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */ - if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */ - if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */ - if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */ - if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */ - - if (operand->bits != 7) - { - as_bad (_("tdaoff() relocation used on an instruction which does not support it")); - return BFD_RELOC_64; /* Used to indicate an error condition. */ - } - - return operand->insert != NULL - ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */ - : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */ -} - -/* Warning: The code in this function relies upon the definitions - in the v850_operands[] array (defined in opcodes/v850-opc.c) - matching the hard coded values contained herein. */ - -static bfd_reloc_code_real_type -v850_reloc_prefix (const struct v850_operand * operand) -{ - boolean paren_skipped = false; - - - /* Skip leading opening parenthesis. */ - if (* input_line_pointer == '(') - { - ++ input_line_pointer; - paren_skipped = true; - } - -#define CHECK_(name, reloc) \ - if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \ - { \ - input_line_pointer += strlen (name); \ - return reloc; \ - } - - CHECK_ ("hi0", BFD_RELOC_HI16); - CHECK_ ("hi", BFD_RELOC_HI16_S); - CHECK_ ("lo", BFD_RELOC_LO16); - CHECK_ ("sdaoff", handle_sdaoff (operand)); - CHECK_ ("zdaoff", handle_zdaoff (operand)); - CHECK_ ("tdaoff", handle_tdaoff (operand)); - CHECK_ ("hilo", BFD_RELOC_32); - CHECK_ ("ctoff", handle_ctoff (operand)); - - /* Restore skipped parenthesis. */ - if (paren_skipped) - -- input_line_pointer; - - return BFD_RELOC_UNUSED; -} - -/* Insert an operand value into an instruction. */ - -static unsigned long -v850_insert_operand (insn, operand, val, file, line, str) - unsigned long insn; - const struct v850_operand * operand; - offsetT val; - char * file; - unsigned int line; - char * str; -{ - if (operand->insert) - { - const char * message = NULL; - - insn = operand->insert (insn, val, & message); - if (message != NULL) - { - if ((operand->flags & V850_OPERAND_SIGNED) - && ! warn_signed_overflows - && strstr (message, "out of range") != NULL) - { - /* skip warning... */ - } - else if ((operand->flags & V850_OPERAND_SIGNED) == 0 - && ! warn_unsigned_overflows - && strstr (message, "out of range") != NULL) - { - /* skip warning... */ - } - else if (str) - { - if (file == (char *) NULL) - as_warn ("%s: %s", str, message); - else - as_warn_where (file, line, "%s: %s", str, message); - } - else - { - if (file == (char *) NULL) - as_warn (message); - else - as_warn_where (file, line, message); - } - } - } - else - { - if (operand->bits != 32) - { - long min, max; - offsetT test; - - if ((operand->flags & V850_OPERAND_SIGNED) != 0) - { - if (! warn_signed_overflows) - max = (1 << operand->bits) - 1; - else - max = (1 << (operand->bits - 1)) - 1; - - min = - (1 << (operand->bits - 1)); - } - else - { - max = (1 << operand->bits) - 1; - - if (! warn_unsigned_overflows) - min = - (1 << (operand->bits - 1)); - else - min = 0; - } - - if (val < (offsetT) min || val > (offsetT) max) - { - /* xgettext:c-format */ - const char * err = _("operand out of range (%s not between %ld and %ld)"); - char buf[100]; - - /* Restore min and mix to expected values for decimal ranges. */ - if ((operand->flags & V850_OPERAND_SIGNED) - && ! warn_signed_overflows) - max = (1 << (operand->bits - 1)) - 1; - - if (! (operand->flags & V850_OPERAND_SIGNED) - && ! warn_unsigned_overflows) - min = 0; - - if (str) - { - sprintf (buf, "%s: ", str); - - sprint_value (buf + strlen (buf), val); - } - else - sprint_value (buf, val); - - if (file == (char *) NULL) - as_warn (err, buf, min, max); - else - as_warn_where (file, line, err, buf, min, max); - } - } - - insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift); - } - - return insn; -} - - -static char copy_of_instruction [128]; - -void -md_assemble (str) - char * str; -{ - char * s; - char * start_of_operands; - struct v850_opcode * opcode; - struct v850_opcode * next_opcode; - const unsigned char * opindex_ptr; - int next_opindex; - int relaxable; - unsigned long insn; - unsigned long insn_size; - char * f; - int i; - int match; - boolean extra_data_after_insn = false; - unsigned extra_data_len; - unsigned long extra_data; - char * saved_input_line_pointer; - - - strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1); - - /* Get the opcode. */ - for (s = str; *s != '\0' && ! isspace (*s); s++) - continue; - - if (*s != '\0') - *s++ = '\0'; - - /* find the first opcode with the proper name */ - opcode = (struct v850_opcode *) hash_find (v850_hash, str); - if (opcode == NULL) - { - /* xgettext:c-format */ - as_bad (_("Unrecognized opcode: `%s'"), str); - ignore_rest_of_line (); - return; - } - - str = s; - while (isspace (* str)) - ++ str; - - start_of_operands = str; - - saved_input_line_pointer = input_line_pointer; - - for (;;) - { - const char * errmsg = NULL; - - match = 0; - - if ((opcode->processors & processor_mask) == 0) - { - errmsg = _("Target processor does not support this instruction."); - goto error; - } - - relaxable = 0; - fc = 0; - next_opindex = 0; - insn = opcode->opcode; - extra_data_after_insn = false; - - input_line_pointer = str = start_of_operands; - - for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr ++) - { - const struct v850_operand * operand; - char * hold; - expressionS ex; - bfd_reloc_code_real_type reloc; - - if (next_opindex == 0) - { - operand = & v850_operands[ * opindex_ptr ]; - } - else - { - operand = & v850_operands[ next_opindex ]; - next_opindex = 0; - } - - errmsg = NULL; - - while (*str == ' ' || *str == ',' || *str == '[' || *str == ']') - ++ str; - - if (operand->flags & V850_OPERAND_RELAX) - relaxable = 1; - - /* Gather the operand. */ - hold = input_line_pointer; - input_line_pointer = str; - - /* lo(), hi(), hi0(), etc... */ - if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED) - { - /* This is a fake reloc, used to indicate an error condition. */ - if (reloc == BFD_RELOC_64) - { - match = 1; - goto error; - } - - expression (& ex); - - if (ex.X_op == O_constant) - { - switch (reloc) - { - case BFD_RELOC_V850_ZDA_16_16_OFFSET: - /* To cope with "not1 7, zdaoff(0xfffff006)[r0]" - and the like. */ - /* Fall through. */ - - case BFD_RELOC_LO16: - { - /* Truncate, then sign extend the value. */ - ex.X_add_number = SEXT16 (ex.X_add_number); - break; - } - - case BFD_RELOC_HI16: - { - /* Truncate, then sign extend the value. */ - ex.X_add_number = SEXT16 (ex.X_add_number >> 16); - break; - } - - case BFD_RELOC_HI16_S: - { - /* Truncate, then sign extend the value. */ - int temp = (ex.X_add_number >> 16) & 0xffff; - - temp += (ex.X_add_number >> 15) & 1; - - ex.X_add_number = SEXT16 (temp); - break; - } - - case BFD_RELOC_32: - if ((operand->flags & V850E_IMMEDIATE32) == 0) - { - errmsg = _("immediate operand is too large"); - goto error; - } - - extra_data_after_insn = true; - extra_data_len = 4; - extra_data = ex.X_add_number; - ex.X_add_number = 0; - break; - - default: - fprintf (stderr, "reloc: %d\n", reloc); - as_bad (_("AAARG -> unhandled constant reloc")); - break; - } - - if (fc > MAX_INSN_FIXUPS) - as_fatal (_("too many fixups")); - - fixups[ fc ].exp = ex; - fixups[ fc ].opindex = * opindex_ptr; - fixups[ fc ].reloc = reloc; - fc++; - } - else - { - if (reloc == BFD_RELOC_32) - { - if ((operand->flags & V850E_IMMEDIATE32) == 0) - { - errmsg = _("immediate operand is too large"); - goto error; - } - - extra_data_after_insn = true; - extra_data_len = 4; - extra_data = ex.X_add_number; - } - - if (fc > MAX_INSN_FIXUPS) - as_fatal (_("too many fixups")); - - fixups[ fc ].exp = ex; - fixups[ fc ].opindex = * opindex_ptr; - fixups[ fc ].reloc = reloc; - fc++; - } - } - else - { - errmsg = NULL; - - if ((operand->flags & V850_OPERAND_REG) != 0) - { - if (!register_name (& ex)) - { - errmsg = _("invalid register name"); - } - else if ((operand->flags & V850_NOT_R0) - && ex.X_add_number == 0) - { - errmsg = _("register r0 cannot be used here"); - - /* Force an error message to be generated by - skipping over any following potential matches - for this opcode. */ - opcode += 3; - } - } - else if ((operand->flags & V850_OPERAND_SRG) != 0) - { - if (!system_register_name (& ex, true, false)) - { - errmsg = _("invalid system register name"); - } - } - else if ((operand->flags & V850_OPERAND_EP) != 0) - { - char * start = input_line_pointer; - char c = get_symbol_end (); - - if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0) - { - /* Put things back the way we found them. */ - *input_line_pointer = c; - input_line_pointer = start; - errmsg = _("expected EP register"); - goto error; - } - - *input_line_pointer = c; - str = input_line_pointer; - input_line_pointer = hold; - - while (*str == ' ' || *str == ',' || *str == '[' || *str == ']') - ++ str; - continue; - } - else if ((operand->flags & V850_OPERAND_CC) != 0) - { - if (!cc_name (& ex)) - { - errmsg = _("invalid condition code name"); - } - } - else if (operand->flags & V850E_PUSH_POP) - { - errmsg = parse_register_list (& insn, operand); - - /* The parse_register_list() function has already done - everything, so fake a dummy expression. */ - ex.X_op = O_constant; - ex.X_add_number = 0; - } - else if (operand->flags & V850E_IMMEDIATE16) - { - expression (& ex); - - if (ex.X_op != O_constant) - errmsg = _("constant expression expected"); - else if (ex.X_add_number & 0xffff0000) - { - if (ex.X_add_number & 0xffff) - errmsg = _("constant too big to fit into instruction"); - else if ((insn & 0x001fffc0) == 0x00130780) - ex.X_add_number >>= 16; - else - errmsg = _("constant too big to fit into instruction"); - } - - extra_data_after_insn = true; - extra_data_len = 2; - extra_data = ex.X_add_number; - ex.X_add_number = 0; - } - else if (operand->flags & V850E_IMMEDIATE32) - { - expression (& ex); - - if (ex.X_op != O_constant) - errmsg = _("constant expression expected"); - - extra_data_after_insn = true; - extra_data_len = 4; - extra_data = ex.X_add_number; - ex.X_add_number = 0; - } - else if (register_name (& ex) - && (operand->flags & V850_OPERAND_REG) == 0) - { - char c; - int exists = 0; - - /* It is possible that an alias has been defined that - matches a register name. For example the code may - include a ".set ZERO, 0" directive, which matches - the register name "zero". Attempt to reparse the - field as an expression, and only complain if we - cannot generate a constant. */ - - input_line_pointer = str; - - c = get_symbol_end (); - - if (symbol_find (str) != NULL) - exists = 1; - - * input_line_pointer = c; - input_line_pointer = str; - - expression (& ex); - - if (ex.X_op != O_constant) - { - /* If this register is actually occuring too early on - the parsing of the instruction, (because another - field is missing) then report this. */ - if (opindex_ptr[1] != 0 - && (v850_operands [opindex_ptr [1]].flags & V850_OPERAND_REG)) - errmsg = _("syntax error: value is missing before the register name"); - else - errmsg = _("syntax error: register not expected"); - - /* If we created a symbol in the process of this test then - delete it now, so that it will not be output with the real - symbols... */ - if (exists == 0 - && ex.X_op == O_symbol) - symbol_remove (ex.X_add_symbol, - & symbol_rootP, & symbol_lastP); - } - } - else if (system_register_name (& ex, false, false) - && (operand->flags & V850_OPERAND_SRG) == 0) - { - errmsg = _("syntax error: system register not expected"); - } - else if (cc_name (&ex) - && (operand->flags & V850_OPERAND_CC) == 0) - { - errmsg = _("syntax error: condition code not expected"); - } - else - { - expression (& ex); - /* Special case: - If we are assembling a MOV instruction (or a CALLT.... :-) - and the immediate value does not fit into the bits - available then create a fake error so that the next MOV - instruction will be selected. This one has a 32 bit - immediate field. */ - - if (((insn & 0x07e0) == 0x0200) - && ex.X_op == O_constant - && (ex.X_add_number < (- (1 << (operand->bits - 1))) - || ex.X_add_number > ((1 << operand->bits) - 1))) - errmsg = _("immediate operand is too large"); - } - - if (errmsg) - goto error; - -/* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", - insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */ - - switch (ex.X_op) - { - case O_illegal: - errmsg = _("illegal operand"); - goto error; - case O_absent: - errmsg = _("missing operand"); - goto error; - case O_register: - if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0) - { - errmsg = _("invalid operand"); - goto error; - } - insn = v850_insert_operand (insn, operand, ex.X_add_number, - (char *) NULL, 0, - copy_of_instruction); - break; - - case O_constant: - insn = v850_insert_operand (insn, operand, ex.X_add_number, - (char *) NULL, 0, - copy_of_instruction); - break; - - default: - /* We need to generate a fixup for this expression. */ - if (fc >= MAX_INSN_FIXUPS) - as_fatal (_("too many fixups")); - - fixups[ fc ].exp = ex; - fixups[ fc ].opindex = * opindex_ptr; - fixups[ fc ].reloc = BFD_RELOC_UNUSED; - ++fc; - break; - } - } - - str = input_line_pointer; - input_line_pointer = hold; - - while (*str == ' ' || *str == ',' || *str == '[' || *str == ']' - || *str == ')') - ++str; - } - match = 1; - - error: - if (match == 0) - { - next_opcode = opcode + 1; - if (next_opcode->name != NULL - && strcmp (next_opcode->name, opcode->name) == 0) - { - opcode = next_opcode; - - /* Skip versions that are not supported by the target - processor. */ - if ((opcode->processors & processor_mask) == 0) - goto error; - - continue; - } - - as_bad ("%s: %s", copy_of_instruction, errmsg); - - if (* input_line_pointer == ']') - ++ input_line_pointer; - - ignore_rest_of_line (); - input_line_pointer = saved_input_line_pointer; - return; - } - break; - } - - while (isspace (*str)) - ++str; - - if (*str != '\0') - /* xgettext:c-format */ - as_bad (_("junk at end of line: `%s'"), str); - - input_line_pointer = str; - - /* Write out the instruction. */ - - if (relaxable && fc > 0) - { - insn_size = 2; - fc = 0; - - if (!strcmp (opcode->name, "br")) - { - f = frag_var (rs_machine_dependent, 4, 2, 2, - fixups[0].exp.X_add_symbol, - fixups[0].exp.X_add_number, - (char *)fixups[0].opindex); - md_number_to_chars (f, insn, insn_size); - md_number_to_chars (f + 2, 0, 2); - } - else - { - f = frag_var (rs_machine_dependent, 6, 4, 0, - fixups[0].exp.X_add_symbol, - fixups[0].exp.X_add_number, - (char *)fixups[0].opindex); - md_number_to_chars (f, insn, insn_size); - md_number_to_chars (f + 2, 0, 4); - } - } - else - { - /* Four byte insns have an opcode with the two high bits on. */ - if ((insn & 0x0600) == 0x0600) - insn_size = 4; - else - insn_size = 2; - - /* Special case: 32 bit MOV */ - if ((insn & 0xffe0) == 0x0620) - insn_size = 2; - - f = frag_more (insn_size); - - md_number_to_chars (f, insn, insn_size); - - if (extra_data_after_insn) - { - f = frag_more (extra_data_len); - - md_number_to_chars (f, extra_data, extra_data_len); - - extra_data_after_insn = false; - } - } - - /* Create any fixups. At this point we do not use a - bfd_reloc_code_real_type, but instead just use the - BFD_RELOC_UNUSED plus the operand index. This lets us easily - handle fixups for any operand type, although that is admittedly - not a very exciting feature. We pick a BFD reloc type in - md_apply_fix. */ - for (i = 0; i < fc; i++) - { - const struct v850_operand * operand; - bfd_reloc_code_real_type reloc; - - operand = & v850_operands[ fixups[i].opindex ]; - - reloc = fixups[i].reloc; - - if (reloc != BFD_RELOC_UNUSED) - { - reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, - reloc); - int size; - int address; - fixS * fixP; - - if (!reloc_howto) - abort(); - - size = bfd_get_reloc_size (reloc_howto); - - /* XXX This will abort on an R_V850_8 reloc - - is this reloc actually used ? */ - if (size != 2 && size != 4) - abort (); - - address = (f - frag_now->fr_literal) + insn_size - size; - - if (reloc == BFD_RELOC_32) - { - address += 2; - } - - fixP = fix_new_exp (frag_now, address, size, - & fixups[i].exp, - reloc_howto->pc_relative, - reloc); - - switch (reloc) - { - case BFD_RELOC_LO16: - case BFD_RELOC_HI16: - case BFD_RELOC_HI16_S: - fixP->fx_no_overflow = 1; - break; - } - } - else - { - fix_new_exp ( - frag_now, - f - frag_now->fr_literal, 4, - & fixups[i].exp, - 1 /* FIXME: V850_OPERAND_RELATIVE ??? */, - (bfd_reloc_code_real_type) (fixups[i].opindex - + (int) BFD_RELOC_UNUSED) - ); - } - } - - input_line_pointer = saved_input_line_pointer; -} - - -/* If while processing a fixup, a reloc really needs to be created */ -/* then it is done here. */ - -arelent * -tc_gen_reloc (seg, fixp) - asection * seg; - fixS * fixp; -{ - arelent * reloc; - - reloc = (arelent *) xmalloc (sizeof (arelent)); - 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; - reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); - - if (reloc->howto == (reloc_howto_type *) NULL) - { - as_bad_where (fixp->fx_file, fixp->fx_line, - /* xgettext:c-format */ - _("reloc %d not supported by object file format"), - (int) fixp->fx_r_type); - - xfree (reloc); - - return NULL; - } - - if ( fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY - || fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT) - reloc->addend = fixp->fx_offset; - else - reloc->addend = fixp->fx_addnumber; - - return reloc; -} - -/* Assume everything will fit in two bytes, then expand as necessary. */ -int -md_estimate_size_before_relax (fragp, seg) - fragS * fragp; - asection * seg; -{ - if (fragp->fr_subtype == 0) - fragp->fr_var = 4; - else if (fragp->fr_subtype == 2) - fragp->fr_var = 2; - else - abort (); - return 2; -} - -long -v850_pcrel_from_section (fixp, section) - fixS * fixp; - segT section; -{ - /* If the symbol is undefined, or in a section other than our own, - or it is weak (in which case it may well be in another section, - then let the linker figure it out. */ - if (fixp->fx_addsy != (symbolS *) NULL - && (! S_IS_DEFINED (fixp->fx_addsy) - || S_IS_WEAK (fixp->fx_addsy) - || (S_GET_SEGMENT (fixp->fx_addsy) != section))) - return 0; - - return fixp->fx_frag->fr_address + fixp->fx_where; -} - -int -md_apply_fix3 (fixp, valuep, seg) - fixS * fixp; - valueT * valuep; - segT seg; -{ - valueT value; - char * where; - - if ( fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT - || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) - { - fixp->fx_done = 0; - return 1; - } - - if (fixp->fx_addsy == (symbolS *) NULL) - { - value = * valuep; - fixp->fx_done = 1; - } - else if (fixp->fx_pcrel) - value = * valuep; - else - { - value = fixp->fx_offset; - if (fixp->fx_subsy != (symbolS *) NULL) - { - if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) - value -= S_GET_VALUE (fixp->fx_subsy); - else - { - /* We don't actually support subtracting a symbol. */ - as_bad_where (fixp->fx_file, fixp->fx_line, - _("expression too complex")); - } - } - } - - if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED) - { - int opindex; - const struct v850_operand * operand; - unsigned long insn; - - opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; - operand = & v850_operands[ opindex ]; - - /* Fetch the instruction, insert the fully resolved operand - value, and stuff the instruction back again. - - Note the instruction has been stored in little endian - format! */ - where = fixp->fx_frag->fr_literal + fixp->fx_where; - - insn = bfd_getl32 ((unsigned char *) where); - insn = v850_insert_operand (insn, operand, (offsetT) value, - fixp->fx_file, fixp->fx_line, NULL); - bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); - - if (fixp->fx_done) - { - /* Nothing else to do here. */ - return 1; - } - - /* Determine a BFD reloc value based on the operand information. - We are only prepared to turn a few of the operands into relocs. */ - - if (operand->bits == 22) - fixp->fx_r_type = BFD_RELOC_V850_22_PCREL; - else if (operand->bits == 9) - fixp->fx_r_type = BFD_RELOC_V850_9_PCREL; - else - { - /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */ - - as_bad_where (fixp->fx_file, fixp->fx_line, - _("unresolved expression that must be resolved")); - fixp->fx_done = 1; - return 1; - } - } - else if (fixp->fx_done) - { - /* We still have to insert the value into memory! */ - where = fixp->fx_frag->fr_literal + fixp->fx_where; - - if (fixp->fx_size == 1) - * where = value & 0xff; - else if (fixp->fx_size == 2) - bfd_putl16 (value & 0xffff, (unsigned char *) where); - else if (fixp->fx_size == 4) - bfd_putl32 (value, (unsigned char *) where); - } - - fixp->fx_addnumber = value; - return 1; -} - - -/* Parse a cons expression. We have to handle hi(), lo(), etc - on the v850. */ -void -parse_cons_expression_v850 (exp) - expressionS * exp; -{ - /* See if there's a reloc prefix like hi() we have to handle. */ - hold_cons_reloc = v850_reloc_prefix (NULL); - - /* Do normal expression parsing. */ - expression (exp); -} - -/* Create a fixup for a cons expression. If parse_cons_expression_v850 - found a reloc prefix, then we use that reloc, else we choose an - appropriate one based on the size of the expression. */ -void -cons_fix_new_v850 (frag, where, size, exp) - fragS * frag; - int where; - int size; - expressionS *exp; -{ - if (hold_cons_reloc == BFD_RELOC_UNUSED) - { - if (size == 4) - hold_cons_reloc = BFD_RELOC_32; - if (size == 2) - hold_cons_reloc = BFD_RELOC_16; - if (size == 1) - hold_cons_reloc = BFD_RELOC_8; - } - - if (exp != NULL) - fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc); - else - fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc); -} - -boolean -v850_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; - - /* Don't adjust function names */ - if (S_IS_FUNCTION (fixP->fx_addsy)) - 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; -} - -int -v850_force_relocation (fixP) - struct fix * fixP; -{ - if (fixP->fx_addsy && S_IS_WEAK (fixP->fx_addsy)) - return 1; - - if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT - || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) - return 1; - - return 0; -} |