From ccf107185ddeb528a78477da60102d721edbb398 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Tue, 2 Sep 1997 23:01:27 +0000 Subject: [PATCH] Support for new relocations added. Support for SDA/TDA/ZDA sections added. --- gas/ChangeLog | 10 ++ gas/config/tc-v850.c | 486 ++++++++++++++++++++++++++++++++------------------- gas/config/tc-v850.h | 39 +++-- 3 files changed, 338 insertions(+), 197 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index a6b86d9..139d0be 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +Tue Sep 2 15:58:52 1997 Nick Clifton + + * config/tc-v850.c: Add support for SDA/TDA/ZDA sections. + (v850_reloc_prefix): Duplicate code eliminated. Add code to + recognise special instructions. + (md_assemble): Calculation of the size of a fixups corrected. + + * config/tc-v850.h (ELF_TC_SPECIAL_SECTIONS): Add SDA/TDA/ZDA + sections. + Tue Sep 2 15:40:56 1997 Andrew Cagney * config/tc-v850.c (md_assemble): Use opcode->name instead of diff --git a/gas/config/tc-v850.c b/gas/config/tc-v850.c index 0f4117b..0646b63 100644 --- a/gas/config/tc-v850.c +++ b/gas/config/tc-v850.c @@ -64,6 +64,16 @@ const relax_typeS md_relax_table[] = { }; +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; + + /* local functions */ static unsigned long v850_insert_operand PARAMS ((unsigned long insn, const struct v850_operand *operand, @@ -74,13 +84,77 @@ static unsigned long v850_insert_operand #define MAX_INSN_FIXUPS (5) struct v850_fixup { - expressionS exp; - int opindex; + 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) +{ + subseg_set (sdata_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_tdata (int ignore) +{ + subseg_set (tdata_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_zdata (int ignore) +{ + subseg_set (zdata_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_sbss (int ignore) +{ + subseg_set (sbss_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_tbss (int ignore) +{ + subseg_set (tbss_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_zbss (int ignore) +{ + subseg_set (zbss_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_rosdata (int ignore) +{ + subseg_set (rosdata_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + +void +v850_rozdata (int ignore) +{ + subseg_set (rozdata_section, (subsegT) get_absolute_expression ()); + + demand_empty_rest_of_line (); +} + static void v850_section (int arg) { @@ -103,6 +177,8 @@ void v850_bss (int ignore) { register int temp = get_absolute_expression (); + + obj_elf_section_change_hook(); subseg_set (bss_section, (subsegT) temp); @@ -112,9 +188,12 @@ v850_bss (int ignore) void v850_offset (int ignore) { - register int temp = get_absolute_expression (); + int temp = get_absolute_expression (); + + temp -= frag_now_fix(); - subseg_set (now_seg, (subsegT) temp); + if (temp > 0) + (void) frag_more (temp); demand_empty_rest_of_line (); } @@ -122,6 +201,14 @@ v850_offset (int ignore) /* 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}, {"section", v850_section, 0}, @@ -135,12 +222,12 @@ 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 }, + { "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 }, @@ -151,7 +238,7 @@ static const struct reg_name pre_defined_registers[] = { "r17", 17 }, { "r18", 18 }, { "r19", 19 }, - { "r2", 2 }, + { "r2", 2 }, { "r20", 20 }, { "r21", 21 }, { "r22", 22 }, @@ -162,17 +249,17 @@ static const struct reg_name pre_defined_registers[] = { "r27", 27 }, { "r28", 28 }, { "r29", 29 }, - { "r3", 3 }, + { "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 */ + { "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)) @@ -187,26 +274,26 @@ static const struct reg_name system_registers[] = { "dbpc", 18 }, { "dbpsw", 19 }, /* end-sanitize-v850e */ - { "ecr", 4 }, - { "eipc", 0 }, - { "eipsw", 1 }, - { "fepc", 2 }, - { "fepsw", 3 }, - { "psw", 5 }, + { "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 cc_names[] = { - { "c", 0x1 }, - { "e", 0x2 }, + { "c", 0x1 }, + { "e", 0x2 }, { "ge", 0xe }, { "gt", 0xf }, - { "h", 0xb }, - { "l", 0x1 }, + { "h", 0xb }, + { "l", 0x1 }, { "le", 0x7 }, { "lt", 0x6 }, - { "n", 0x4 }, + { "n", 0x4 }, { "nc", 0x9 }, { "ne", 0xa }, { "nh", 0x3 }, @@ -215,11 +302,11 @@ static const struct reg_name cc_names[] = { "nv", 0x8 }, { "nz", 0xa }, { "p", 0xc }, - { "s", 0x4 }, + { "s", 0x4 }, { "sa", 0xd }, - { "t", 0x5 }, - { "v", 0x0 }, - { "z", 0x2 }, + { "t", 0x5 }, + { "v", 0x0 }, + { "z", 0x2 }, }; #define CC_NAME_CNT (sizeof(cc_names) / sizeof(struct reg_name)) @@ -229,9 +316,9 @@ static const struct reg_name cc_names[] = static int reg_name_search (regs, regcount, name) - const struct reg_name *regs; - int regcount; - const char *name; + const struct reg_name * regs; + int regcount; + const char * name; { int middle, low, high; int cmp; @@ -267,18 +354,18 @@ reg_name_search (regs, regcount, name) */ static boolean register_name (expressionP) - expressionS *expressionP; + expressionS * expressionP; { - int reg_number; - char *name; - char *start; - char c; + 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); * input_line_pointer = c; /* put back the delimiting char */ @@ -319,10 +406,10 @@ system_register_name (expressionP, accept_numbers) expressionS * expressionP; boolean accept_numbers; { - int reg_number; - char *name; - char *start; - char c; + int reg_number; + char * name; + char * start; + char c; /* Find the spelling of the operand */ start = name = input_line_pointer; @@ -388,10 +475,10 @@ static boolean cc_name (expressionP) expressionS *expressionP; { - int reg_number; - char *name; - char *start; - char c; + int reg_number; + char * name; + char * start; + char c; /* Find the spelling of the operand */ start = name = input_line_pointer; @@ -684,21 +771,21 @@ md_parse_option (c, arg) symbolS * md_undefined_symbol (name) - char *name; + char * name; { return 0; } char * md_atof (type, litp, sizep) - int type; - char *litp; - int *sizep; + int type; + char * litp; + int * sizep; { - int prec; + int prec; LITTLENUM_TYPE words[4]; - char *t; - int i; + char * t; + int i; switch (type) { @@ -734,9 +821,9 @@ md_atof (type, litp, sizep) /* Very gross. */ void md_convert_frag (abfd, sec, fragP) - bfd *abfd; - asection *sec; - fragS *fragP; + bfd * abfd; + asection * sec; + fragS * fragP; { subseg_change (sec, 0); if (fragP->fr_subtype == 0) @@ -771,8 +858,8 @@ md_convert_frag (abfd, sec, fragP) valueT md_section_align (seg, addr) - asection *seg; - valueT addr; + asection * seg; + valueT addr; { int align = bfd_get_section_alignment (stdoutput, seg); return ((addr + (1 << align) - 1) & (-1 << align)); @@ -781,9 +868,11 @@ md_section_align (seg, addr) void md_begin () { - char *prev_name = ""; - register const struct v850_opcode *op; + char * prev_name = ""; + register const struct v850_opcode * op; + flagword applicable; + v850_hash = hash_new(); /* Insert unique names into hash table. The V850 instruction set @@ -791,7 +880,7 @@ md_begin () 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; + op = v850_opcodes; while (op->name) { if (strcmp (prev_name, op->name)) @@ -803,26 +892,64 @@ md_begin () } bfd_set_arch_mach (stdoutput, TARGET_ARCH, 0); - fprintf (stderr, "set to %d\n", 0 ); /* start-sanitize-v850e */ bfd_set_arch_mach (stdoutput, TARGET_ARCH, bfd_mach_v850e); - fprintf (stderr, "set to %d\n", bfd_mach_v850e); /* end-sanitize-v850e */ /* start-sanitize-v850eq */ bfd_set_arch_mach (stdoutput, TARGET_ARCH, bfd_mach_v850eq); - fprintf (stderr, "set to %d\n", bfd_mach_v850eq); /* end-sanitize-v850eq */ + + applicable = bfd_applicable_section_flags (stdoutput); + + sdata_section = subseg_new (".sdata", 0); + bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS)); + + tdata_section = subseg_new (".tdata", 0); + bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS)); + + zdata_section = subseg_new (".zdata", 0); + bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS)); + + sbss_section = subseg_new (".sbss", 0); + bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC); + + tbss_section = subseg_new (".tbss", 0); + bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC); + + zbss_section = subseg_new (".zbss", 0); + bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC); + + rosdata_section = subseg_new (".rosdata", 0); + bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY)); + + rozdata_section = subseg_new (".rozdata", 0); + bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY)); } + +/* 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 conatined herein. */ + static bfd_reloc_code_real_type -v850_reloc_prefix () +v850_reloc_prefix (const struct v850_operand * operand) { - if (strncmp(input_line_pointer, "hi0(", 4) == 0) + boolean paren_skipped = false; + + + /* Skip leading opening parenthesis. */ + if (* input_line_pointer == '(') + { + ++ input_line_pointer; + paren_skipped = true; + } + + if (strncmp (input_line_pointer, "hi0(", 4) == 0) { input_line_pointer += 3; return BFD_RELOC_HI16; } - if (strncmp(input_line_pointer, "hi(", 3) == 0) + if (strncmp (input_line_pointer, "hi(", 3) == 0) { input_line_pointer += 2; return BFD_RELOC_HI16_S; @@ -836,56 +963,55 @@ v850_reloc_prefix () if (strncmp (input_line_pointer, "sdaoff(", 7) == 0) { input_line_pointer += 6; - return BFD_RELOC_V850_SDA_OFFSET; + + 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; + /* start-sanitize-v850e */ + if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET; + /* end-sanitize-v850e */ + + assert (operand->bits == 16); + assert (operand->shift == 16); + + return BFD_RELOC_V850_SDA_16_16_OFFSET; } - + if (strncmp (input_line_pointer, "zdaoff(", 7) == 0) { input_line_pointer += 6; - return BFD_RELOC_V850_ZDA_OFFSET; + + 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; + /* start-sanitize-v850e */ + if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET; + /* end-sanitize-v850e */ + + assert (operand->bits == 16); + assert (operand->shift == 16); + + return BFD_RELOC_V850_ZDA_16_16_OFFSET; } - + if (strncmp (input_line_pointer, "tdaoff(", 7) == 0) { input_line_pointer += 6; - return BFD_RELOC_V850_TDA_OFFSET; - } - - /* Disgusting */ - if (strncmp(input_line_pointer, "(hi0(", 5) == 0) - { - input_line_pointer += 4; - return BFD_RELOC_HI16; - } - if (strncmp(input_line_pointer, "(hi(", 4) == 0) - { - input_line_pointer += 3; - return BFD_RELOC_HI16_S; - } - if (strncmp (input_line_pointer, "(lo(", 4) == 0) - { - input_line_pointer += 3; - return BFD_RELOC_LO16; - } - - if (strncmp (input_line_pointer, "(sdaoff(", 8) == 0) - { - input_line_pointer += 7; - return BFD_RELOC_V850_SDA_OFFSET; - } - - if (strncmp (input_line_pointer, "(zdaoff(", 8) == 0) - { - input_line_pointer += 7; - return BFD_RELOC_V850_ZDA_OFFSET; - } - - if (strncmp (input_line_pointer, "(tdaoff(", 8) == 0) - { - input_line_pointer += 7; - return BFD_RELOC_V850_TDA_OFFSET; + + if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; + if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; + /* start-sanitize-v850e */ + if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; + if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; + /* end-sanitize-v850e */ + + assert (operand->bits == 7); + + return operand->insert != NULL ? BFD_RELOC_V850_TDA_7_8_OFFSET : BFD_RELOC_V850_TDA_7_7_OFFSET; } + if (paren_skipped) + /* Restore skipped character. */ + -- input_line_pointer; + return BFD_RELOC_UNUSED; } @@ -905,13 +1031,11 @@ md_assemble (str) char * f; int i; int match; - bfd_reloc_code_real_type reloc; boolean extra_data_after_insn = false; unsigned extra_data_len; unsigned long extra_data; char * saved_input_line_pointer; - /* Get the opcode. */ for (s = str; *s != '\0' && ! isspace (*s); s++) continue; @@ -954,6 +1078,7 @@ md_assemble (str) const struct v850_operand * operand; char * hold; expressionS ex; + bfd_reloc_code_real_type reloc; if (next_opindex == 0) { @@ -977,10 +1102,10 @@ md_assemble (str) hold = input_line_pointer; input_line_pointer = str; -/*fprintf (stderr, "operand: %s index = %d, opcode = %s\n", input_line_pointer, opindex_ptr - opcode->operands, opcode->name );*/ +/* fprintf (stderr, "operand: %s index = %d, opcode = %s\n", input_line_pointer, opindex_ptr - opcode->operands, opcode->name ); */ /* lo(), hi(), hi0(), etc... */ - if ((reloc = v850_reloc_prefix()) != BFD_RELOC_UNUSED) + if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED) { expression (& ex); @@ -1014,6 +1139,7 @@ md_assemble (str) } default: + as_bad ( "AAARG -> unhandled constant reloc"); break; } @@ -1025,13 +1151,9 @@ md_assemble (str) if (fc > MAX_INSN_FIXUPS) as_fatal ("too many fixups"); - /* Adjust any offsets for sst.{h,w}/sld.{h,w} instructions */ - if (operand->flags & V850_OPERAND_ADJUST_SHORT_MEMORY) - ex.X_add_number >>= 1; - - fixups[fc].exp = ex; - fixups[fc].opindex = *opindex_ptr; - fixups[fc].reloc = reloc; + fixups[ fc ].exp = ex; + fixups[ fc ].opindex = * opindex_ptr; + fixups[ fc ].reloc = reloc; fc++; } } @@ -1056,7 +1178,7 @@ md_assemble (str) { if (!system_register_name (& ex, true)) { - errmsg = "UGG invalid system register name"; + errmsg = "invalid system register name"; } } else if ((operand->flags & V850_OPERAND_EP) != 0) @@ -1170,7 +1292,7 @@ md_assemble (str) 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 );*/ +/* 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) { @@ -1199,9 +1321,10 @@ md_assemble (str) /* 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; + + fixups[ fc ].exp = ex; + fixups[ fc ].opindex = * opindex_ptr; + fixups[ fc ].reloc = BFD_RELOC_UNUSED; ++fc; break; } @@ -1226,7 +1349,7 @@ md_assemble (str) continue; } - as_bad ("%s", errmsg); + as_bad (errmsg); ignore_rest_of_line (); input_line_pointer = saved_input_line_pointer; return; @@ -1275,8 +1398,9 @@ md_assemble (str) if (extra_data_after_insn) { - f = frag_more (extra_data_len); - md_number_to_chars (f, extra_data, extra_data_len); + char * g = frag_more (extra_data_len); + + md_number_to_chars (g, extra_data, extra_data_len); extra_data_after_insn = false; } @@ -1287,35 +1411,32 @@ md_assemble (str) 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. */ + md_apply_fix. */ for (i = 0; i < fc; i++) { - const struct v850_operand *operand; + const struct v850_operand * operand; - operand = &v850_operands[fixups[i].opindex]; + operand = & v850_operands[ fixups[i].opindex ]; + if (fixups[i].reloc != BFD_RELOC_UNUSED) { - reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); - int size; - int offset; - fixS *fixP; + reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); + int size; + int address; + fixS * fixP; if (!reloc_howto) abort(); size = bfd_get_reloc_size (reloc_howto); - /* The "size" of a TDA_OFFSET reloc varies depending - on what kind of instruction it's used in! */ - if (reloc_howto->type == 11 && insn_size > 2) - size = 2; - - if (size < 1 || size > 4) + if (size != 2 && size != 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */ abort(); - offset = 4 - size; - fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset, size, - &fixups[i].exp, + address = (f - frag_now->fr_literal) + insn_size - size; + + fixP = fix_new_exp (frag_now, address, size, + & fixups[i].exp, reloc_howto->pc_relative, fixups[i].reloc); @@ -1331,46 +1452,49 @@ md_assemble (str) else { fix_new_exp (frag_now, f - frag_now->fr_literal, 4, - &fixups[i].exp, + & 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 */ +/* 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; + asection * seg; + fixS * fixp; { - arelent *reloc; - reloc = (arelent *) xmalloc (sizeof (arelent)); - reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym; - reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); + arelent * reloc; + + reloc = (arelent *) xmalloc (sizeof (arelent)); + reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym; + 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, "reloc %d not supported by object file format", (int)fixp->fx_r_type); return NULL; } + reloc->addend = fixp->fx_addnumber; - /* printf("tc_gen_reloc: addr=%x addend=%x\n", reloc->address, reloc->addend); */ + 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; + fragS * fragp; + asection * seg; { fragp->fr_var = 4; return 2; @@ -1379,7 +1503,7 @@ md_estimate_size_before_relax (fragp, seg) long md_pcrel_from (fixp) - fixS *fixp; + fixS * fixp; { /* If the symbol is undefined, or in a section other than our own, then let the linker figure it out. */ @@ -1393,20 +1517,20 @@ md_pcrel_from (fixp) int md_apply_fix3 (fixp, valuep, seg) - fixS *fixp; - valueT *valuep; - segT seg; + fixS * fixp; + valueT * valuep; + segT seg; { valueT value; - char *where; + char * where; if (fixp->fx_addsy == (symbolS *) NULL) { - value = *valuep; + value = * valuep; fixp->fx_done = 1; } else if (fixp->fx_pcrel) - value = *valuep; + value = * valuep; else { value = fixp->fx_offset; @@ -1423,17 +1547,15 @@ md_apply_fix3 (fixp, valuep, seg) } } - /* printf("md_apply_fix: value=0x%x type=%d\n", value, fixp->fx_r_type); */ - if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED) { - int opindex; - const struct v850_operand *operand; - char *where; - unsigned long insn; + int opindex; + const struct v850_operand * operand; + char * where; + unsigned long insn; opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; - operand = &v850_operands[opindex]; + operand = & v850_operands[ opindex ]; /* Fetch the instruction, insert the fully resolved operand value, and stuff the instruction back again. @@ -1442,10 +1564,10 @@ md_apply_fix3 (fixp, valuep, seg) format! */ where = fixp->fx_frag->fr_literal + fixp->fx_where; - insn = bfd_getl32((unsigned char *) where); + insn = bfd_getl32 ((unsigned char *) where); insn = v850_insert_operand (insn, operand, (offsetT) value, fixp->fx_file, fixp->fx_line); - bfd_putl32((bfd_vma) insn, (unsigned char *) where); + bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); if (fixp->fx_done) { @@ -1477,11 +1599,11 @@ md_apply_fix3 (fixp, valuep, seg) if (fixp->fx_size == 1) *where = value & 0xff; if (fixp->fx_size == 2) - bfd_putl16(value & 0xffff, (unsigned char *) where); + bfd_putl16 (value & 0xffff, (unsigned char *) where); if (fixp->fx_size == 4) - bfd_putl32(value, (unsigned char *) where); + bfd_putl32 (value, (unsigned char *) where); } - + fixp->fx_addnumber = value; return 1; } @@ -1555,7 +1677,7 @@ 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 (); + hold_cons_reloc = v850_reloc_prefix (NULL); /* Do normal expression parsing. */ expression (exp); diff --git a/gas/config/tc-v850.h b/gas/config/tc-v850.h index d76215b..cfd6cfa 100644 --- a/gas/config/tc-v850.h +++ b/gas/config/tc-v850.h @@ -1,5 +1,5 @@ /* tc-v850.h -- Header file for tc-v850.c. - Copyright (C) 1996 Free Software Foundation, Inc. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. @@ -14,11 +14,14 @@ 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. */ + 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. */ #define TC_V850 +#define TARGET_BYTES_BIG_ENDIAN 0 + #ifndef BFD_ASSEMBLER #error V850 support requires BFD_ASSEMBLER #endif @@ -34,24 +37,13 @@ /* Permit temporary numeric labels. */ #define LOCAL_LABELS_FB 1 -#define LOCAL_LABEL(name) ((name[0] == '.' \ - && (name[1] == 'L' || name[1] == '.')) \ - || (name[0] == '_' && name[1] == '.' && name[2] == 'L' \ - && name[3] == '_')) - -#define FAKE_LABEL_NAME ".L0\001" #define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */ /* We don't need to handle .word strangely. */ #define WORKING_DOT_WORD #define md_number_to_chars number_to_chars_littleendian - -/* In theory, we could adjust TDA relocs; it just means more hackery - to bfd/elf32-v850.c. Not adjusting them is easier at the moment. */ -#define tc_fix_adjustable(FIX) \ - (!(FIX)->fx_pcrel && (FIX)->fx_r_type != BFD_RELOC_V850_TDA_OFFSET) - + /* We need to handle lo(), hi(), etc etc in .hword, .word, etc directives, so we have to parse "cons" expressions ourselves. */ #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_cons_expression_v850 (EXP) @@ -59,3 +51,20 @@ extern const struct relax_type md_relax_table[]; #define TC_GENERIC_RELAX_TABLE md_relax_table + +/* This section must be in the small data area (pointed to by GP). */ +#define SHF_V850_GPREL 0x10000000 +/* This section must be in the tiny data area (pointed to by EP). */ +#define SHF_V850_EPREL 0x20000000 +/* This section must be in the zero data area (pointed to by R0). */ +#define SHF_V850_R0REL 0x40000000 + +#define ELF_TC_SPECIAL_SECTIONS \ + { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_V850_GPREL }, \ + { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_V850_GPREL }, \ + { ".rosdata", SHT_PROGBITS, SHF_ALLOC + SHF_V850_GPREL }, \ + { ".tdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_V850_EPREL }, \ + { ".zdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_V850_R0REL }, \ + { ".rozdata", SHT_PROGBITS, SHF_ALLOC + SHF_V850_R0REL }, \ + { ".zbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_V850_R0REL }, + -- 2.7.4