diff options
| -rw-r--r-- | bfd/ChangeLog | 9 | ||||
| -rw-r--r-- | bfd/elf32-avr.c | 16 | ||||
| -rw-r--r-- | gas/ChangeLog | 21 | ||||
| -rw-r--r-- | gas/config/tc-avr.c | 225 | ||||
| -rw-r--r-- | gas/config/tc-avr.h | 2 | ||||
| -rw-r--r-- | opcodes/ChangeLog | 6 | ||||
| -rw-r--r-- | opcodes/avr-dis.c | 7 |
7 files changed, 206 insertions, 80 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d6d0d48..8b1f9bd 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,12 @@ +2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl> + + * elf32-avr.c (bfd_elf32_bfd_reloc_type_lookup): + Add ATTRIBUTE_UNUSED to unused arguments to avoid warnings. + (avr_info_to_howto_rela): Likewise. + (elf32_avr_gc_mark_hook): Likewise. + (elf32_avr_gc_sweep_hook): Likewise. + (elf32_avr_relocate_section): Likewise. + 2000-07-03 Mark Elbrecht <snowball3@bigfoot.com> * cofflink.c (_bfd_coff_write_global_sym): Turn a weak symbol into diff --git a/bfd/elf32-avr.c b/bfd/elf32-avr.c index c99d667..ccdd6b5 100644 --- a/bfd/elf32-avr.c +++ b/bfd/elf32-avr.c @@ -369,7 +369,7 @@ struct avr_reloc_map static reloc_howto_type * bfd_elf32_bfd_reloc_type_lookup (abfd, code) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code; { unsigned int i; @@ -389,7 +389,7 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code) static void avr_info_to_howto_rela (abfd, cache_ptr, dst) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; arelent *cache_ptr; Elf32_Internal_Rela *dst; { @@ -403,7 +403,7 @@ avr_info_to_howto_rela (abfd, cache_ptr, dst) static asection * elf32_avr_gc_mark_hook (abfd, info, rel, h, sym) bfd *abfd; - struct bfd_link_info *info; + struct bfd_link_info *info ATTRIBUTE_UNUSED; Elf_Internal_Rela *rel; struct elf_link_hash_entry *h; Elf_Internal_Sym *sym; @@ -442,10 +442,10 @@ elf32_avr_gc_mark_hook (abfd, info, rel, h, sym) static boolean elf32_avr_gc_sweep_hook (abfd, info, sec, relocs) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - const Elf_Internal_Rela *relocs; + bfd *abfd ATTRIBUTE_UNUSED; + struct bfd_link_info *info ATTRIBUTE_UNUSED; + asection *sec ATTRIBUTE_UNUSED; + const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; { /* We don't use got and plt entries for avr. */ return true; @@ -717,7 +717,7 @@ avr_final_link_relocate (howto, input_bfd, input_section, static boolean elf32_avr_relocate_section (output_bfd, info, input_bfd, input_section, contents, relocs, local_syms, local_sections) - bfd *output_bfd; + bfd *output_bfd ATTRIBUTE_UNUSED; struct bfd_link_info *info; bfd *input_bfd; asection *input_section; diff --git a/gas/ChangeLog b/gas/ChangeLog index 5a4befe..2878773 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,24 @@ +2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl> + + * config/tc-avr.c: Change _ () to _() around all strings marked + for translation (exception from the usual coding style). + (avr_opt): New struct variable, how the new switches are set. + (OPTION_MMCU): Define as 'm' and actually use. + (md_longopts): Add -mall-opcodes, -mno-skip-bug, -mno-wrap. + (show_mcu_list): New function, display the list of known MCUs. + (md_show_usage): Document the new switches. Call show_mcu_list. + (avr_set_arch): Change 'm' to OPTION_MMCU. + (md_parse_option): Call show_mcu_list if unknown MCU specified. + Handle the new switches. + (avr_operands): Disable warnings for undefined combinations of + operands if -mall-opcodes. Disable warnings for skipping two-word + instructions if enhanced core or -mno-skip-bug. + (avr_operand): Accept all addressing modes on avr1 if -mall-opcodes. + (md_apply_fix3): Reject 8K wrap if >8K or -mno-wrap. + (md_assemble): Accept opcodes not supported by MCU if -mall-opcodes. + (avr_ldi_expression): Warn about implicit lo8(). + * config/tc-avr.h (md_pcrel_from_section): Add prototype. + 2000-07-01 Koundinya K <kk@ddeorg.soft.net> * configure.in: Add entry for mips-*-sysv4*MP* diff --git a/gas/config/tc-avr.c b/gas/config/tc-avr.c index 97f614d..8e7b304 100644 --- a/gas/config/tc-avr.c +++ b/gas/config/tc-avr.c @@ -96,6 +96,16 @@ static struct mcu_type_s mcu_types[] = static struct mcu_type_s default_mcu = {"avr2", AVR_ISA_2xxx,bfd_mach_avr2}; static struct mcu_type_s *avr_mcu = &default_mcu; +/* AVR target-specific switches. */ +struct avr_opt_s +{ + int all_opcodes; /* -mall-opcodes: accept all known AVR opcodes */ + int no_skip_bug; /* -mno-skip-bug: no warnings for skipping 2-word insns */ + int no_wrap; /* -mno-wrap: reject rjmp/rcall with 8K wrap-around */ +}; + +static struct avr_opt_s avr_opt = { 0, 0, 0 }; + const char EXP_CHARS[] = "eE"; const char FLT_CHARS[] = "dD"; static void avr_set_arch (int dummy); @@ -109,6 +119,7 @@ const pseudo_typeS md_pseudo_table[] = #define LDI_IMMEDIATE(x) (((x) & 0xf) | (((x) << 4) & 0xf00)) +static void show_mcu_list (FILE *stream); static char * skip_space (char * s); static char * extract_word (char *from, char *to, int limit); static unsigned int avr_operand (struct avr_opcodes_s *opcode, @@ -150,14 +161,47 @@ static struct hash_control *avr_hash; /* Reloc modifiers hash control (hh8,hi8,lo8,pm_xx). */ static struct hash_control *avr_mod_hash; -#define OPTION_MMCU (OPTION_MD_BASE + 1) +#define OPTION_MMCU 'm' +#define OPTION_ALL_OPCODES (OPTION_MD_BASE + 1) +#define OPTION_NO_SKIP_BUG (OPTION_MD_BASE + 2) +#define OPTION_NO_WRAP (OPTION_MD_BASE + 3) struct option md_longopts[] = { - {"mmcu", required_argument, NULL, 'm'}, - {NULL, no_argument, NULL, 0} + { "mmcu", required_argument, NULL, OPTION_MMCU }, + { "mall-opcodes", no_argument, NULL, OPTION_ALL_OPCODES }, + { "mno-skip-bug", no_argument, NULL, OPTION_NO_SKIP_BUG }, + { "mno-wrap", no_argument, NULL, OPTION_NO_WRAP }, + { NULL, no_argument, NULL, 0 } }; size_t md_longopts_size = sizeof(md_longopts); + +/* Display nicely formatted list of known MCU names. */ +static void +show_mcu_list (FILE *stream) +{ + int i, x; + + fprintf (stream, _("Known MCU names:")); + x = 1000; + for (i = 0; mcu_types[i].name; i++) + { + int len = strlen (mcu_types[i].name); + x += len + 1; + if (x < 75) + { + fprintf (stream, " %s", mcu_types[i].name); + } + else + { + fprintf (stream, "\n %s", mcu_types[i].name); + x = len + 2; + } + } + fprintf (stream, "\n"); +} + + static inline char * skip_space (s) char * s; @@ -202,9 +246,8 @@ void md_show_usage (stream) FILE *stream; { - fprintf - (stream, - _ ("AVR options:\n" + fprintf (stream, + _("AVR options:\n" " -mmcu=[avr-name] select microcontroller variant\n" " [avr-name] can be:\n" " avr1 - AT90S1200, ATtiny1x, ATtiny28\n" @@ -213,6 +256,13 @@ md_show_usage (stream) " avr4 - ATmega83, ATmega85\n" " avr5 - ATmega161, ATmega163, ATmega32, AT94K\n" " or immediate microcontroller name.\n")); + fprintf (stream, + _(" -mall-opcodes accept all AVR opcodes, even if not supported by MCU\n" + " -mno-skip-bug disable warnings for skipping two-word instructions\n" + " (default for avr4, avr5)\n" + " -mno-wrap reject rjmp/rcall instructions with 8K wrap-around\n" + " (default for avr3, avr5)\n")); + show_mcu_list (stream); } static void @@ -222,7 +272,7 @@ avr_set_arch (dummy) char * str; str = (char *)alloca (20); input_line_pointer = extract_word (input_line_pointer, str, 20); - md_parse_option ('m', str); + md_parse_option (OPTION_MMCU, str); bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach); } @@ -231,33 +281,51 @@ md_parse_option (c, arg) int c; char *arg; { - char *t = alloca (strlen (arg) + 1); - char *s = t; - char *arg1 = arg; - do - *t = tolower (*arg1++); - while (*t++); - - if (c == 'm') + switch (c) { - int i; + case OPTION_MMCU: + { + int i; + char *s = alloca (strlen (arg) + 1); - for (i = 0; mcu_types[i].name; ++i) - if (strcmp (mcu_types[i].name, s) == 0) - break; + { + char *t = s; + char *arg1 = arg; + + do + *t = tolower(*arg1++); + while (*t++); + } + + for (i = 0; mcu_types[i].name; ++i) + if (strcmp (mcu_types[i].name, s) == 0) + break; - if (!mcu_types[i].name) - as_fatal (_ ("unknown MCU: %s\n"), arg); + if (!mcu_types[i].name) + { + show_mcu_list (stderr); + as_fatal (_("unknown MCU: %s\n"), arg); + } - /* It is OK to redefine mcu type within the same avr[1-5] bfd machine - type - this for allows passing -mmcu=... via gcc ASM_SPEC as well - as .arch ... in the asm output at the same time. */ + /* It is OK to redefine mcu type within the same avr[1-5] bfd machine + type - this for allows passing -mmcu=... via gcc ASM_SPEC as well + as .arch ... in the asm output at the same time. */ - if (avr_mcu == &default_mcu || avr_mcu->mach == mcu_types[i].mach) - avr_mcu = &mcu_types[i]; - else - as_fatal (_ ("redefinition of mcu type `%s' to `%s'"), - avr_mcu->name, mcu_types[i].name); + if (avr_mcu == &default_mcu || avr_mcu->mach == mcu_types[i].mach) + avr_mcu = &mcu_types[i]; + else + as_fatal (_("redefinition of mcu type `%s' to `%s'"), + avr_mcu->name, mcu_types[i].name); + return 1; + } + case OPTION_ALL_OPCODES: + avr_opt.all_opcodes = 1; + return 1; + case OPTION_NO_SKIP_BUG: + avr_opt.no_skip_bug = 1; + return 1; + case OPTION_NO_WRAP: + avr_opt.no_wrap = 1; return 1; } return 0; @@ -413,7 +481,7 @@ avr_operands (opcode, line) str = skip_space (str); if (*str++ != ',') - as_bad (_ ("`,' required")); + as_bad (_("`,' required")); str = skip_space (str); reg2 = avr_operand (opcode, where, op, &str); @@ -429,22 +497,29 @@ avr_operands (opcode, line) bin |= reg1 | reg2; } - /* detect undefined combinations (like lpm r31,Z+) */ - if (((bin & 0xFDEF) == 0x91AD) || ((bin & 0xFDEF) == 0x91AE) || - ((bin & 0xFDEF) == 0x91C9) || ((bin & 0xFDEF) == 0x91CA) || - ((bin & 0xFDEF) == 0x91E1) || ((bin & 0xFDEF) == 0x91E2) || - ((bin & 0xFFED) == 0x91E5)) - as_warn( _("undefined combination of operands")); - + if (!avr_opt.all_opcodes) + { + /* Detect undefined combinations (like ld r31,Z+). */ + if (((bin & 0xFDEF) == 0x91AD) || ((bin & 0xFDEF) == 0x91AE) || + ((bin & 0xFDEF) == 0x91C9) || ((bin & 0xFDEF) == 0x91CA) || + ((bin & 0xFDEF) == 0x91E1) || ((bin & 0xFDEF) == 0x91E2) || + ((bin & 0xFFED) == 0x91E5)) + as_warn (_("undefined combination of operands")); + } + if (opcode->insn_size == 2) { - /* warn if previous opcode was cpse/sbic/sbis/sbrc/sbrs - (AVR core bug) */ - if ((prev & 0xFC00) == 0x1000 - || (prev & 0xFD00) == 0x9900 - || (prev & 0xFC08) == 0xFC00) - as_warn (_("skipping two-word instruction")); - + /* Warn if the previous opcode was cpse/sbic/sbis/sbrc/sbrs + (AVR core bug, fixed in the newer devices). */ + + if (!((avr_mcu->isa & AVR_ISA_MUL) || avr_opt.no_skip_bug)) + { + if ((prev & 0xFC00) == 0x1000 + || (prev & 0xFD00) == 0x9900 + || (prev & 0xFC08) == 0xFC00) + as_warn (_("skipping two-word instruction")); + } + bfd_putl32 ((bfd_vma)bin, frag); } else @@ -508,32 +583,32 @@ avr_operand (opcode, where, op, line) { case 'a': if (op_mask < 16 || op_mask > 23) - as_bad (_ ("register r16-r23 required")); + as_bad (_("register r16-r23 required")); op_mask -= 16; break; case 'd': if (op_mask < 16) - as_bad (_ ("register number above 15 required")); + as_bad (_("register number above 15 required")); op_mask -= 16; break; case 'v': if (op_mask & 1) - as_bad (_ ("even register number required")); + as_bad (_("even register number required")); op_mask >>= 1; break; case 'w': op_mask -= 24; if (op_mask & 1 || op_mask > 6) - as_bad (_ ("register r24,r26,r28 or r30 required")); + as_bad (_("register r24, r26, r28 or r30 required")); op_mask >>= 1; break; } break; } - as_bad (_ ("register name or number from 0 to 31 required")); + as_bad (_("register name or number from 0 to 31 required")); } break; @@ -551,32 +626,33 @@ avr_operand (opcode, where, op, line) else if (c == 'y') op_mask |= 0x8; else if (c != 'z') - as_bad (_ ("pointer register (X,Y or Z) required")); + as_bad (_("pointer register (X, Y or Z) required")); str = skip_space (str+1); if (*str == '+') { ++str; if (op_mask & 2) - as_bad (_ ("cannot both predecrement and postincrement")); + as_bad (_("cannot both predecrement and postincrement")); op_mask |= 0x1001; } /* avr1 can do "ld r,Z" and "st Z,r" but no other pointer registers, no predecrement, no postincrement. */ - if ((op_mask & 0x100F) && !(avr_mcu->isa & AVR_ISA_SRAM)) - as_bad (_ ("addressing mode not supported")); + if (!avr_opt.all_opcodes && (op_mask & 0x100F) + && !(avr_mcu->isa & AVR_ISA_SRAM)) + as_bad (_("addressing mode not supported")); } break; case 'z': { if (*str == '-') - as_bad (_ ("can't predecrement")); + as_bad (_("can't predecrement")); if (! (*str == 'z' || *str == 'Z')) - as_bad (_ ("pointer register Z required")); + as_bad (_("pointer register Z required")); str = skip_space (str + 1); if (*str == '+') @@ -593,7 +669,7 @@ avr_operand (opcode, where, op, line) if (c == 'y') op_mask |= 0x8; else if (c != 'z') - as_bad (_ ("pointer register (Y or Z) required")); + as_bad (_("pointer register (Y or Z) required")); str = skip_space (str); if (*str++ == '+') { @@ -702,7 +778,7 @@ avr_operand (opcode, where, op, line) case '?': break; default: - as_bad (_ ("unknown constraint `%c'"), *op); + as_bad (_("unknown constraint `%c'"), *op); } *line = str; return op_mask; @@ -778,7 +854,7 @@ md_apply_fix3 (fixp, valuep, seg) { /* We don't actually support subtracting a symbol. */ as_bad_where (fixp->fx_file, fixp->fx_line, - _ ("expression too complex")); + _("expression too complex")); } } } @@ -829,7 +905,7 @@ md_apply_fix3 (fixp, valuep, seg) if (value < -2048 || value > 2047) { /* No wrap for devices with >8K of program memory. */ - if (avr_mcu->isa & AVR_ISA_MEGA) + if ((avr_mcu->isa & AVR_ISA_MEGA) || avr_opt.no_wrap) as_bad_where (fixp->fx_file, fixp->fx_line, _("operand out of range: %ld"), value); } @@ -1007,13 +1083,13 @@ md_assemble (str) str = skip_space (extract_word (str, op, sizeof(op))); if (!op[0]) - as_bad (_ ("can't find opcode ")); + as_bad (_("can't find opcode ")); opcode = (struct avr_opcodes_s *) hash_find (avr_hash, op); if (opcode == NULL) { - as_bad (_ ("unknown opcode `%s'"), op); + as_bad (_("unknown opcode `%s'"), op); return; } @@ -1023,8 +1099,8 @@ md_assemble (str) if (*str && *opcode->constraints == '?') ++opcode; - if ((opcode->isa & avr_mcu->isa) != opcode->isa) - as_bad (_ ("illegal opcode %s for mcu %s"), opcode->name, avr_mcu->name); + if (!avr_opt.all_opcodes && (opcode->isa & avr_mcu->isa) != opcode->isa) + as_bad (_("illegal opcode %s for mcu %s"), opcode->name, avr_mcu->name); /* We used to set input_line_pointer to the result of get_operands, but that is wrong. Our caller assumes we don't change it. */ @@ -1032,7 +1108,7 @@ md_assemble (str) char *t = input_line_pointer; avr_operands (opcode, &str); if (*skip_space (str)) - as_bad (_ ("garbage at end of line")); + as_bad (_("garbage at end of line")); input_line_pointer = t; } } @@ -1090,7 +1166,7 @@ avr_ldi_expression (exp) ++closes; } else - as_bad (_ ("illegal expression")); + as_bad (_("illegal expression")); if (*str == '-') { neg_p = 1; @@ -1112,7 +1188,7 @@ avr_ldi_expression (exp) { if (*input_line_pointer != ')') { - as_bad (_ ("`)' required")); + as_bad (_("`)' required")); break; } input_line_pointer++; @@ -1124,6 +1200,17 @@ avr_ldi_expression (exp) } input_line_pointer = tmp; expression (exp); + + /* Warn about expressions that fail to use lo8(). */ + if (exp->X_op == O_constant) + { + int x = exp->X_add_number; + if (x < -255 || x > 255) + as_warn (_("constant out of 8-bit range: %d"), x); + } + else + as_warn (_("expression possibly out of 8-bit range")); + return BFD_RELOC_AVR_LO8_LDI; } @@ -1161,7 +1248,7 @@ avr_parse_cons_expression (exp, nbytes) ++input_line_pointer; else { - as_bad (_ ("`)' required")); + as_bad (_("`)' required")); exp_mod_pm = 0; } return; @@ -1186,14 +1273,14 @@ avr_cons_fix_new(frag, where, nbytes, exp) else if (nbytes == 4) fix_new_exp (frag, where, nbytes, exp, false, BFD_RELOC_32); else - as_bad (_ ("illegal %srelocation size: %d"), "", nbytes); + as_bad (_("illegal %srelocation size: %d"), "", nbytes); } else { if (nbytes == 2) fix_new_exp (frag, where, nbytes, exp, false, BFD_RELOC_AVR_16_PM); else - as_bad (_ ("illegal %srelocation size: %d"), "`pm' ", nbytes); + as_bad (_("illegal %srelocation size: %d"), "`pm' ", nbytes); exp_mod_pm = 0; } } diff --git a/gas/config/tc-avr.h b/gas/config/tc-avr.h index 2a8d3ee..5b2589d 100644 --- a/gas/config/tc-avr.h +++ b/gas/config/tc-avr.h @@ -108,6 +108,8 @@ void avr_cons_fix_new(fragS *frag,int where, int nbytes, expressionS *exp); of a PC relative instruction is the next instruction, so this macro would return the length of an instruction. */ +extern long md_pcrel_from_section PARAMS ((struct fix *, segT)); + #define LISTING_WORD_SIZE 2 /* The number of bytes to put into a word in a listing. This affects the way the bytes are clumped together in the listing. For diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index ad38600..737d7af 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,9 @@ +2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl> + + * avr-dis.c (avr_operand): Change _ () to _() around all strings + marked for translation (exception from the usual coding style). + (print_insn_avr): Initialize insn2 to avoid warnings. + 2000-07-03 Kazu Hirata <kazu@hxi.com> * h8300-dis.c (bfd_h8_disassemble): Improve readability. diff --git a/opcodes/avr-dis.c b/opcodes/avr-dis.c index a774d8b..ee91d7f 100644 --- a/opcodes/avr-dis.c +++ b/opcodes/avr-dis.c @@ -103,7 +103,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs) case 0: *buf++ = 'Z'; break; case 2: *buf++ = 'Y'; break; case 3: *buf++ = 'X'; break; - default: buf += sprintf (buf, _ (" unknown register ")); break; + default: buf += sprintf (buf, _(" unknown register ")); break; } if (insn & 0x1) *buf++ = '+'; @@ -165,7 +165,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs) break; case 'n': - sprintf (buf, _ ("Internal disassembler error")); + sprintf (buf, _("Internal disassembler error")); break; case 'K': @@ -205,7 +205,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs) break; default: - sprintf (buf, _ ("unknown constraint `%c'"), constraint); + sprintf (buf, _("unknown constraint `%c'"), constraint); } } @@ -280,6 +280,7 @@ print_insn_avr(addr, info) op2[0] = 0; comment1[0] = 0; comment2[0] = 0; + insn2 = 0; if (opcode->insn_size > 1) { |