diff options
Diffstat (limited to 'binutils-2.24/gas/config/tc-avr.c')
| -rw-r--r-- | binutils-2.24/gas/config/tc-avr.c | 1619 |
1 files changed, 0 insertions, 1619 deletions
diff --git a/binutils-2.24/gas/config/tc-avr.c b/binutils-2.24/gas/config/tc-avr.c deleted file mode 100644 index 332aa2dc..00000000 --- a/binutils-2.24/gas/config/tc-avr.c +++ /dev/null @@ -1,1619 +0,0 @@ -/* tc-avr.c -- Assembler code for the ATMEL AVR - - Copyright 1999-2013 Free Software Foundation, Inc. - Contributed by Denis Chertykov <denisc@overta.ru> - - 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 3, 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, 51 Franklin Street - Fifth Floor, - Boston, MA 02110-1301, USA. */ - -#include "as.h" -#include "safe-ctype.h" -#include "subsegs.h" -#include "dwarf2dbg.h" -#include "dw2gencfi.h" - - -struct avr_opcodes_s -{ - char * name; - char * constraints; - char * opcode; - int insn_size; /* In words. */ - int isa; - unsigned int bin_opcode; -}; - -#define AVR_INSN(NAME, CONSTR, OPCODE, SIZE, ISA, BIN) \ -{#NAME, CONSTR, OPCODE, SIZE, ISA, BIN}, - -struct avr_opcodes_s avr_opcodes[] = -{ - #include "opcode/avr.h" - {NULL, NULL, NULL, 0, 0, 0} -}; - -const char comment_chars[] = ";"; -const char line_comment_chars[] = "#"; -const char line_separator_chars[] = "$"; - -const char *md_shortopts = "m:"; -struct mcu_type_s -{ - char *name; - int isa; - int mach; -}; - -/* XXX - devices that don't seem to exist (renamed, replaced with larger - ones, or planned but never produced), left here for compatibility. */ - -static struct mcu_type_s mcu_types[] = -{ - {"avr1", AVR_ISA_AVR1, bfd_mach_avr1}, -/* TODO: insruction set for avr2 architecture should be AVR_ISA_AVR2, - but set to AVR_ISA_AVR25 for some following version - of GCC (from 4.3) for backward compatibility. */ - {"avr2", AVR_ISA_AVR25, bfd_mach_avr2}, - {"avr25", AVR_ISA_AVR25, bfd_mach_avr25}, -/* TODO: insruction set for avr3 architecture should be AVR_ISA_AVR3, - but set to AVR_ISA_AVR3_ALL for some following version - of GCC (from 4.3) for backward compatibility. */ - {"avr3", AVR_ISA_AVR3_ALL, bfd_mach_avr3}, - {"avr31", AVR_ISA_AVR31, bfd_mach_avr31}, - {"avr35", AVR_ISA_AVR35, bfd_mach_avr35}, - {"avr4", AVR_ISA_AVR4, bfd_mach_avr4}, -/* TODO: insruction set for avr5 architecture should be AVR_ISA_AVR5, - but set to AVR_ISA_AVR51 for some following version - of GCC (from 4.3) for backward compatibility. */ - {"avr5", AVR_ISA_AVR51, bfd_mach_avr5}, - {"avr51", AVR_ISA_AVR51, bfd_mach_avr51}, - {"avr6", AVR_ISA_AVR6, bfd_mach_avr6}, - {"avrxmega1", AVR_ISA_XMEGA, bfd_mach_avrxmega1}, - {"avrxmega2", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"avrxmega3", AVR_ISA_XMEGA, bfd_mach_avrxmega3}, - {"avrxmega4", AVR_ISA_XMEGA, bfd_mach_avrxmega4}, - {"avrxmega5", AVR_ISA_XMEGA, bfd_mach_avrxmega5}, - {"avrxmega6", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"avrxmega7", AVR_ISA_XMEGA, bfd_mach_avrxmega7}, - {"at90s1200", AVR_ISA_1200, bfd_mach_avr1}, - {"attiny11", AVR_ISA_AVR1, bfd_mach_avr1}, - {"attiny12", AVR_ISA_AVR1, bfd_mach_avr1}, - {"attiny15", AVR_ISA_AVR1, bfd_mach_avr1}, - {"attiny28", AVR_ISA_AVR1, bfd_mach_avr1}, - {"at90s2313", AVR_ISA_AVR2, bfd_mach_avr2}, - {"at90s2323", AVR_ISA_AVR2, bfd_mach_avr2}, - {"at90s2333", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 4433 */ - {"at90s2343", AVR_ISA_AVR2, bfd_mach_avr2}, - {"attiny22", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 2343 */ - {"attiny26", AVR_ISA_2xxe, bfd_mach_avr2}, - {"at90s4414", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 8515 */ - {"at90s4433", AVR_ISA_AVR2, bfd_mach_avr2}, - {"at90s4434", AVR_ISA_AVR2, bfd_mach_avr2}, /* XXX -> 8535 */ - {"at90s8515", AVR_ISA_AVR2, bfd_mach_avr2}, - {"at90c8534", AVR_ISA_AVR2, bfd_mach_avr2}, - {"at90s8535", AVR_ISA_AVR2, bfd_mach_avr2}, - {"attiny13", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny13a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny2313", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny2313a",AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny24", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny24a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny4313", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny44", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny44a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny84", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny84a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny25", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny45", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny85", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny261", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny261a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny461", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny461a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny861", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny861a", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny87", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny43u", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny48", AVR_ISA_AVR25, bfd_mach_avr25}, - {"attiny88", AVR_ISA_AVR25, bfd_mach_avr25}, - {"at86rf401", AVR_ISA_RF401, bfd_mach_avr25}, - {"at43usb355", AVR_ISA_AVR3, bfd_mach_avr3}, - {"at76c711", AVR_ISA_AVR3, bfd_mach_avr3}, - {"atmega103", AVR_ISA_AVR31, bfd_mach_avr31}, - {"at43usb320", AVR_ISA_AVR31, bfd_mach_avr31}, - {"attiny167", AVR_ISA_AVR35, bfd_mach_avr35}, - {"at90usb82", AVR_ISA_AVR35, bfd_mach_avr35}, - {"at90usb162", AVR_ISA_AVR35, bfd_mach_avr35}, - {"atmega8u2", AVR_ISA_AVR35, bfd_mach_avr35}, - {"atmega16u2", AVR_ISA_AVR35, bfd_mach_avr35}, - {"atmega32u2", AVR_ISA_AVR35, bfd_mach_avr35}, - {"atmega8", AVR_ISA_M8, bfd_mach_avr4}, - {"ata6289", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega48", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega48a", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega48p", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega88", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega88a", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega88p", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega88pa", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega8515", AVR_ISA_M8, bfd_mach_avr4}, - {"atmega8535", AVR_ISA_M8, bfd_mach_avr4}, - {"atmega8hva", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm1", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm2", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm2b", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm3", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm3b", AVR_ISA_AVR4, bfd_mach_avr4}, - {"at90pwm81", AVR_ISA_AVR4, bfd_mach_avr4}, - {"atmega16", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega161", AVR_ISA_M161, bfd_mach_avr5}, - {"atmega162", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega163", AVR_ISA_M161, bfd_mach_avr5}, - {"atmega164a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega164p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega165", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega165a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega165p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega168", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega168a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega168p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega169", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega169a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega169p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega169pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega323", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega324a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega324p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega324pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega325", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega325a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega325p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega325pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3250", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3250a",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3250p",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3250pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega328", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega328p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega329", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega329a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega329p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega329pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3290", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3290a",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3290p",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega3290pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega406", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega64", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega640", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega644", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega644a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega644p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega644pa",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega645", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega645a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega645p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega649", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega649a", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega649p", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6450", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6450a",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6450p",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6490", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6490a",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega6490p",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega64rfr2",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega644rfr2",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16hva",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16hva2",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16hvb",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16hvbrevb",AVR_ISA_AVR5,bfd_mach_avr5}, - {"atmega32hvb",AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32hvbrevb",AVR_ISA_AVR5,bfd_mach_avr5}, - {"atmega64hve",AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90can32" , AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90can64" , AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90pwm161", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90pwm216", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90pwm316", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32c1", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega64c1", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16m1", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32m1", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega64m1", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega16u4", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32u4", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega32u6", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90usb646", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90usb647", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at90scr100", AVR_ISA_AVR5, bfd_mach_avr5}, - {"at94k", AVR_ISA_94K, bfd_mach_avr5}, - {"m3000", AVR_ISA_AVR5, bfd_mach_avr5}, - {"atmega128", AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega1280", AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega1281", AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega1284p",AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega128rfa1",AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega128rfr2",AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega1284rfr2",AVR_ISA_AVR51, bfd_mach_avr51}, - {"at90can128", AVR_ISA_AVR51, bfd_mach_avr51}, - {"at90usb1286",AVR_ISA_AVR51, bfd_mach_avr51}, - {"at90usb1287",AVR_ISA_AVR51, bfd_mach_avr51}, - {"atmega2560", AVR_ISA_AVR6, bfd_mach_avr6}, - {"atmega2561", AVR_ISA_AVR6, bfd_mach_avr6}, - {"atmega256rfr2", AVR_ISA_AVR6, bfd_mach_avr6}, - {"atmega2564rfr2", AVR_ISA_AVR6, bfd_mach_avr6}, - {"atxmega16a4", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega16d4", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega16x1", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega32a4", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega32d4", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega32x1", AVR_ISA_XMEGA, bfd_mach_avrxmega2}, - {"atxmega64a3", AVR_ISA_XMEGA, bfd_mach_avrxmega4}, - {"atxmega64d3", AVR_ISA_XMEGA, bfd_mach_avrxmega4}, - {"atxmega64a1", AVR_ISA_XMEGA, bfd_mach_avrxmega5}, - {"atxmega64a1u",AVR_ISA_XMEGAU, bfd_mach_avrxmega5}, - {"atxmega128a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega128b1", AVR_ISA_XMEGAU, bfd_mach_avrxmega6}, - {"atxmega128d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega192a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega192d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega256a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega256a3b",AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega256a3bu",AVR_ISA_XMEGAU, bfd_mach_avrxmega6}, - {"atxmega256d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6}, - {"atxmega128a1", AVR_ISA_XMEGA, bfd_mach_avrxmega7}, - {"atxmega128a1u", AVR_ISA_XMEGAU, bfd_mach_avrxmega7}, - {NULL, 0, 0} -}; - -/* Current MCU type. */ -static struct mcu_type_s default_mcu = {"avr2", AVR_ISA_AVR2, 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); - -/* The target specific pseudo-ops which we support. */ -const pseudo_typeS md_pseudo_table[] = -{ - {"arch", avr_set_arch, 0}, - { NULL, NULL, 0} -}; - -#define LDI_IMMEDIATE(x) (((x) & 0xf) | (((x) << 4) & 0xf00)) - -#define EXP_MOD_NAME(i) exp_mod[i].name -#define EXP_MOD_RELOC(i) exp_mod[i].reloc -#define EXP_MOD_NEG_RELOC(i) exp_mod[i].neg_reloc -#define HAVE_PM_P(i) exp_mod[i].have_pm - -struct exp_mod_s -{ - char * name; - bfd_reloc_code_real_type reloc; - bfd_reloc_code_real_type neg_reloc; - int have_pm; -}; - -static struct exp_mod_s exp_mod[] = -{ - {"hh8", BFD_RELOC_AVR_HH8_LDI, BFD_RELOC_AVR_HH8_LDI_NEG, 1}, - {"pm_hh8", BFD_RELOC_AVR_HH8_LDI_PM, BFD_RELOC_AVR_HH8_LDI_PM_NEG, 0}, - {"hi8", BFD_RELOC_AVR_HI8_LDI, BFD_RELOC_AVR_HI8_LDI_NEG, 1}, - {"pm_hi8", BFD_RELOC_AVR_HI8_LDI_PM, BFD_RELOC_AVR_HI8_LDI_PM_NEG, 0}, - {"lo8", BFD_RELOC_AVR_LO8_LDI, BFD_RELOC_AVR_LO8_LDI_NEG, 1}, - {"pm_lo8", BFD_RELOC_AVR_LO8_LDI_PM, BFD_RELOC_AVR_LO8_LDI_PM_NEG, 0}, - {"hlo8", BFD_RELOC_AVR_HH8_LDI, BFD_RELOC_AVR_HH8_LDI_NEG, 0}, - {"hhi8", BFD_RELOC_AVR_MS8_LDI, BFD_RELOC_AVR_MS8_LDI_NEG, 0}, -}; - -/* A union used to store indicies into the exp_mod[] array - in a hash table which expects void * data types. */ -typedef union -{ - void * ptr; - int index; -} mod_index; - -/* Opcode hash table. */ -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 'm' -enum options -{ - OPTION_ALL_OPCODES = OPTION_MD_BASE + 1, - OPTION_NO_SKIP_BUG, - OPTION_NO_WRAP -}; - -struct option md_longopts[] = -{ - { "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 (char *s) -{ - while (*s == ' ' || *s == '\t') - ++s; - return s; -} - -/* Extract one word from FROM and copy it to TO. */ - -static char * -extract_word (char *from, char *to, int limit) -{ - char *op_end; - int size = 0; - - /* Drop leading whitespace. */ - from = skip_space (from); - *to = 0; - - /* Find the op code end. */ - for (op_end = from; *op_end != 0 && is_part_of_name (*op_end);) - { - to[size++] = *op_end++; - if (size + 1 >= limit) - break; - } - - to[size] = 0; - return op_end; -} - -int -md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, - asection *seg ATTRIBUTE_UNUSED) -{ - abort (); - return 0; -} - -void -md_show_usage (FILE *stream) -{ - fprintf (stream, - _("AVR Assembler options:\n" - " -mmcu=[avr-name] select microcontroller variant\n" - " [avr-name] can be:\n" - " avr1 - classic AVR core without data RAM\n" - " avr2 - classic AVR core with up to 8K program memory\n" - " avr25 - classic AVR core with up to 8K program memory\n" - " plus the MOVW instruction\n" - " avr3 - classic AVR core with up to 64K program memory\n" - " avr31 - classic AVR core with up to 128K program memory\n" - " avr35 - classic AVR core with up to 64K program memory\n" - " plus the MOVW instruction\n" - " avr4 - enhanced AVR core with up to 8K program memory\n" - " avr5 - enhanced AVR core with up to 64K program memory\n" - " avr51 - enhanced AVR core with up to 128K program memory\n" - " avr6 - enhanced AVR core with up to 256K program memory\n" - " avrxmega2 - XMEGA, > 8K, < 64K FLASH, < 64K RAM\n" - " avrxmega3 - XMEGA, > 8K, <= 64K FLASH, > 64K RAM\n" - " avrxmega4 - XMEGA, > 64K, <= 128K FLASH, <= 64K RAM\n" - " avrxmega5 - XMEGA, > 64K, <= 128K FLASH, > 64K RAM\n" - " avrxmega6 - XMEGA, > 128K, <= 256K FLASH, <= 64K RAM\n" - " avrxmega7 - XMEGA, > 128K, <= 256K FLASH, > 64K RAM\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 -avr_set_arch (int dummy ATTRIBUTE_UNUSED) -{ - char str[20]; - - input_line_pointer = extract_word (input_line_pointer, str, 20); - md_parse_option (OPTION_MMCU, str); - bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach); -} - -int -md_parse_option (int c, char *arg) -{ - switch (c) - { - case OPTION_MMCU: - { - int i; - char *s = alloca (strlen (arg) + 1); - - { - 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) - { - 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. */ - 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; -} - -symbolS * -md_undefined_symbol (char *name ATTRIBUTE_UNUSED) -{ - return NULL; -} - -char * -md_atof (int type, char *litP, int *sizeP) -{ - return ieee_md_atof (type, litP, sizeP, FALSE); -} - -void -md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec ATTRIBUTE_UNUSED, - fragS *fragP ATTRIBUTE_UNUSED) -{ - abort (); -} - -void -md_begin (void) -{ - unsigned int i; - struct avr_opcodes_s *opcode; - - avr_hash = hash_new (); - - /* Insert unique names into hash table. This hash table then provides a - quick index to the first opcode with a particular name in the opcode - table. */ - for (opcode = avr_opcodes; opcode->name; opcode++) - hash_insert (avr_hash, opcode->name, (char *) opcode); - - avr_mod_hash = hash_new (); - - for (i = 0; i < ARRAY_SIZE (exp_mod); ++i) - { - mod_index m; - - m.index = i + 10; - hash_insert (avr_mod_hash, EXP_MOD_NAME (i), m.ptr); - } - - bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach); -} - -/* Resolve STR as a constant expression and return the result. - If result greater than MAX then error. */ - -static unsigned int -avr_get_constant (char *str, int max) -{ - expressionS ex; - - str = skip_space (str); - input_line_pointer = str; - expression (& ex); - - if (ex.X_op != O_constant) - as_bad (_("constant value required")); - - if (ex.X_add_number > max || ex.X_add_number < 0) - as_bad (_("number must be positive and less than %d"), max + 1); - - return ex.X_add_number; -} - -/* Parse for ldd/std offset. */ - -static void -avr_offset_expression (expressionS *exp) -{ - char *str = input_line_pointer; - char *tmp; - char op[8]; - - tmp = str; - str = extract_word (str, op, sizeof (op)); - - 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); - } -} - -/* Parse ordinary expression. */ - -static char * -parse_exp (char *s, expressionS *op) -{ - input_line_pointer = s; - expression (op); - if (op->X_op == O_absent) - as_bad (_("missing operand")); - return input_line_pointer; -} - -/* Parse special expressions (needed for LDI command): - xx8 (address) - xx8 (-address) - pm_xx8 (address) - pm_xx8 (-address) - where xx is: hh, hi, lo. */ - -static bfd_reloc_code_real_type -avr_ldi_expression (expressionS *exp) -{ - char *str = input_line_pointer; - char *tmp; - char op[8]; - int mod; - int linker_stubs_should_be_generated = 0; - - tmp = str; - - str = extract_word (str, op, sizeof (op)); - - if (op[0]) - { - mod_index m; - - m.ptr = hash_find (avr_mod_hash, op); - mod = m.index; - - if (mod) - { - int closes = 0; - - mod -= 10; - str = skip_space (str); - - if (*str == '(') - { - bfd_reloc_code_real_type reloc_to_return; - int neg_p = 0; - - ++str; - - if (strncmp ("pm(", str, 3) == 0 - || strncmp ("gs(",str,3) == 0 - || strncmp ("-(gs(",str,5) == 0 - || strncmp ("-(pm(", str, 5) == 0) - { - if (HAVE_PM_P (mod)) - { - ++mod; - ++closes; - } - else - as_bad (_("illegal expression")); - - if (str[0] == 'g' || str[2] == 'g') - linker_stubs_should_be_generated = 1; - - if (*str == '-') - { - neg_p = 1; - ++closes; - str += 5; - } - else - str += 3; - } - - if (*str == '-' && *(str + 1) == '(') - { - neg_p ^= 1; - ++closes; - str += 2; - } - - input_line_pointer = str; - expression (exp); - - do - { - if (*input_line_pointer != ')') - { - as_bad (_("`)' required")); - break; - } - input_line_pointer++; - } - while (closes--); - - reloc_to_return = - neg_p ? EXP_MOD_NEG_RELOC (mod) : EXP_MOD_RELOC (mod); - if (linker_stubs_should_be_generated) - { - switch (reloc_to_return) - { - case BFD_RELOC_AVR_LO8_LDI_PM: - reloc_to_return = BFD_RELOC_AVR_LO8_LDI_GS; - break; - case BFD_RELOC_AVR_HI8_LDI_PM: - reloc_to_return = BFD_RELOC_AVR_HI8_LDI_GS; - break; - - default: - /* PR 5523: Do not generate a warning here, - legitimate code can trigger this case. */ - break; - } - } - return reloc_to_return; - } - } - } - - 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); - } - - return BFD_RELOC_AVR_LDI; -} - -/* Parse one instruction operand. - Return operand bitmask. Also fixups can be generated. */ - -static unsigned int -avr_operand (struct avr_opcodes_s *opcode, - int where, - char *op, - char **line) -{ - expressionS op_expr; - unsigned int op_mask = 0; - char *str = skip_space (*line); - - switch (*op) - { - /* Any register operand. */ - case 'w': - case 'd': - case 'r': - case 'a': - case 'v': - if (*str == 'r' || *str == 'R') - { - char r_name[20]; - - str = extract_word (str, r_name, sizeof (r_name)); - op_mask = 0xff; - if (ISDIGIT (r_name[1])) - { - if (r_name[2] == '\0') - op_mask = r_name[1] - '0'; - else if (r_name[1] != '0' - && ISDIGIT (r_name[2]) - && r_name[3] == '\0') - op_mask = (r_name[1] - '0') * 10 + r_name[2] - '0'; - } - } - else - { - op_mask = avr_get_constant (str, 31); - str = input_line_pointer; - } - - if (op_mask <= 31) - { - switch (*op) - { - case 'a': - if (op_mask < 16 || op_mask > 23) - as_bad (_("register r16-r23 required")); - op_mask -= 16; - break; - - case 'd': - if (op_mask < 16) - as_bad (_("register number above 15 required")); - op_mask -= 16; - break; - - case 'v': - if (op_mask & 1) - as_bad (_("even register number required")); - op_mask >>= 1; - break; - - case 'w': - if ((op_mask & 1) || op_mask < 24) - as_bad (_("register r24, r26, r28 or r30 required")); - op_mask = (op_mask - 24) >> 1; - break; - } - break; - } - as_bad (_("register name or number from 0 to 31 required")); - break; - - case 'e': - { - char c; - - if (*str == '-') - { - str = skip_space (str + 1); - op_mask = 0x1002; - } - c = TOLOWER (*str); - if (c == 'x') - op_mask |= 0x100c; - else if (c == 'y') - op_mask |= 0x8; - else if (c != 'z') - 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")); - op_mask |= 0x1001; - } - - /* avr1 can do "ld r,Z" and "st Z,r" but no other pointer - registers, no predecrement, no postincrement. */ - 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")); - - if (! (*str == 'z' || *str == 'Z')) - as_bad (_("pointer register Z required")); - - str = skip_space (str + 1); - - if (*str == '+') - { - ++str; - char *s; - for (s = opcode->opcode; *s; ++s) - { - if (*s == '+') - op_mask |= (1 << (15 - (s - opcode->opcode))); - } - } - - /* attiny26 can do "lpm" and "lpm r,Z" but not "lpm r,Z+". */ - if (!avr_opt.all_opcodes - && (op_mask & 0x0001) - && !(avr_mcu->isa & AVR_ISA_MOVW)) - as_bad (_("postincrement not supported")); - break; - - case 'b': - { - char c = TOLOWER (*str++); - - if (c == 'y') - op_mask |= 0x8; - else if (c != 'z') - as_bad (_("pointer register (Y or Z) required")); - str = skip_space (str); - if (*str++ == '+') - { - input_line_pointer = str; - avr_offset_expression (& op_expr); - str = input_line_pointer; - fix_new_exp (frag_now, where, 3, - &op_expr, FALSE, BFD_RELOC_AVR_6); - } - } - break; - - case 'h': - str = parse_exp (str, &op_expr); - fix_new_exp (frag_now, where, opcode->insn_size * 2, - &op_expr, FALSE, BFD_RELOC_AVR_CALL); - break; - - case 'L': - str = parse_exp (str, &op_expr); - fix_new_exp (frag_now, where, opcode->insn_size * 2, - &op_expr, TRUE, BFD_RELOC_AVR_13_PCREL); - break; - - case 'l': - str = parse_exp (str, &op_expr); - fix_new_exp (frag_now, where, opcode->insn_size * 2, - &op_expr, TRUE, BFD_RELOC_AVR_7_PCREL); - break; - - case 'i': - str = parse_exp (str, &op_expr); - fix_new_exp (frag_now, where + 2, opcode->insn_size * 2, - &op_expr, FALSE, BFD_RELOC_16); - break; - - case 'M': - { - bfd_reloc_code_real_type r_type; - - input_line_pointer = str; - r_type = avr_ldi_expression (&op_expr); - str = input_line_pointer; - fix_new_exp (frag_now, where, 3, - &op_expr, FALSE, r_type); - } - break; - - case 'n': - { - unsigned int x; - - x = ~avr_get_constant (str, 255); - str = input_line_pointer; - op_mask |= (x & 0xf) | ((x << 4) & 0xf00); - } - break; - - case 'K': - input_line_pointer = str; - avr_offset_expression (& op_expr); - str = input_line_pointer; - fix_new_exp (frag_now, where, 3, - & op_expr, FALSE, BFD_RELOC_AVR_6_ADIW); - break; - - case 'S': - case 's': - { - unsigned int x; - - x = avr_get_constant (str, 7); - str = input_line_pointer; - if (*op == 'S') - x <<= 4; - op_mask |= x; - } - break; - - case 'P': - { - unsigned int x; - - x = avr_get_constant (str, 63); - str = input_line_pointer; - op_mask |= (x & 0xf) | ((x & 0x30) << 5); - } - break; - - case 'p': - { - unsigned int x; - - x = avr_get_constant (str, 31); - str = input_line_pointer; - op_mask |= x << 3; - } - break; - - case 'E': - { - unsigned int x; - - x = avr_get_constant (str, 15); - str = input_line_pointer; - op_mask |= (x << 4); - } - break; - - case '?': - break; - - default: - as_bad (_("unknown constraint `%c'"), *op); - } - - *line = str; - return op_mask; -} - -/* Parse instruction operands. - Return binary opcode. */ - -static unsigned int -avr_operands (struct avr_opcodes_s *opcode, char **line) -{ - char *op = opcode->constraints; - unsigned int bin = opcode->bin_opcode; - char *frag = frag_more (opcode->insn_size * 2); - char *str = *line; - int where = frag - frag_now->fr_literal; - static unsigned int prev = 0; /* Previous opcode. */ - - /* Opcode have operands. */ - if (*op) - { - unsigned int reg1 = 0; - unsigned int reg2 = 0; - int reg1_present = 0; - int reg2_present = 0; - - /* Parse first operand. */ - if (REGISTER_P (*op)) - reg1_present = 1; - reg1 = avr_operand (opcode, where, op, &str); - ++op; - - /* Parse second operand. */ - if (*op) - { - if (*op == ',') - ++op; - - if (*op == '=') - { - reg2 = reg1; - reg2_present = 1; - } - else - { - if (REGISTER_P (*op)) - reg2_present = 1; - - str = skip_space (str); - if (*str++ != ',') - as_bad (_("`,' required")); - str = skip_space (str); - - reg2 = avr_operand (opcode, where, op, &str); - } - - if (reg1_present && reg2_present) - reg2 = (reg2 & 0xf) | ((reg2 << 5) & 0x200); - else if (reg2_present) - reg2 <<= 4; - } - if (reg1_present) - reg1 <<= 4; - bin |= reg1 | reg2; - } - - /* Detect undefined combinations (like ld r31,Z+). */ - if (!avr_opt.all_opcodes && AVR_UNDEF_P (bin)) - as_warn (_("undefined combination of operands")); - - if (opcode->insn_size == 2) - { - /* Warn if the previous opcode was cpse/sbic/sbis/sbrc/sbrs - (AVR core bug, fixed in the newer devices). */ - if (!(avr_opt.no_skip_bug || - (avr_mcu->isa & (AVR_ISA_MUL | AVR_ISA_MOVW))) - && AVR_SKIP_P (prev)) - as_warn (_("skipping two-word instruction")); - - bfd_putl32 ((bfd_vma) bin, frag); - } - else - bfd_putl16 ((bfd_vma) bin, frag); - - prev = bin; - *line = str; - return bin; -} - -/* GAS will call this function for each section at the end of the assembly, - to permit the CPU backend to adjust the alignment of a section. */ - -valueT -md_section_align (asection *seg, valueT addr) -{ - int align = bfd_get_section_alignment (stdoutput, seg); - return ((addr + (1 << align) - 1) & (-1 << align)); -} - -/* If you define this macro, it should return the offset between the - address of a PC relative fixup and the position from which the PC - relative adjustment should be made. On many processors, the base - of a PC relative instruction is the next instruction, so this - macro would return the length of an instruction. */ - -long -md_pcrel_from_section (fixS *fixp, segT sec) -{ - if (fixp->fx_addsy != (symbolS *) NULL - && (!S_IS_DEFINED (fixp->fx_addsy) - || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) - return 0; - - return fixp->fx_frag->fr_address + fixp->fx_where; -} - -/* GAS will call this for each fixup. It should store the correct - value in the object file. */ - -void -md_apply_fix (fixS *fixP, valueT * valP, segT seg) -{ - unsigned char *where; - unsigned long insn; - long value = *valP; - - if (fixP->fx_addsy == (symbolS *) NULL) - fixP->fx_done = 1; - - else if (fixP->fx_pcrel) - { - segT s = S_GET_SEGMENT (fixP->fx_addsy); - - if (s == seg || s == absolute_section) - { - value += S_GET_VALUE (fixP->fx_addsy); - fixP->fx_done = 1; - } - } - - /* We don't actually support subtracting a symbol. */ - if (fixP->fx_subsy != (symbolS *) NULL) - as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); - - switch (fixP->fx_r_type) - { - default: - fixP->fx_no_overflow = 1; - break; - case BFD_RELOC_AVR_7_PCREL: - case BFD_RELOC_AVR_13_PCREL: - case BFD_RELOC_32: - case BFD_RELOC_16: - case BFD_RELOC_AVR_CALL: - break; - } - - if (fixP->fx_done) - { - /* Fetch the instruction, insert the fully resolved operand - value, and stuff the instruction back again. */ - where = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where; - insn = bfd_getl16 (where); - - switch (fixP->fx_r_type) - { - case BFD_RELOC_AVR_7_PCREL: - if (value & 1) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("odd address operand: %ld"), value); - - /* Instruction addresses are always right-shifted by 1. */ - value >>= 1; - --value; /* Correct PC. */ - - if (value < -64 || value > 63) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("operand out of range: %ld"), value); - value = (value << 3) & 0x3f8; - bfd_putl16 ((bfd_vma) (value | insn), where); - break; - - case BFD_RELOC_AVR_13_PCREL: - if (value & 1) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("odd address operand: %ld"), value); - - /* Instruction addresses are always right-shifted by 1. */ - value >>= 1; - --value; /* Correct PC. */ - - if (value < -2048 || value > 2047) - { - /* No wrap for devices with >8K of program memory. */ - 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); - } - - value &= 0xfff; - bfd_putl16 ((bfd_vma) (value | insn), where); - break; - - case BFD_RELOC_32: - bfd_putl32 ((bfd_vma) value, where); - break; - - case BFD_RELOC_16: - bfd_putl16 ((bfd_vma) value, where); - break; - - case BFD_RELOC_8: - if (value > 255 || value < -128) - as_warn_where (fixP->fx_file, fixP->fx_line, - _("operand out of range: %ld"), value); - *where = value; - break; - - case BFD_RELOC_AVR_16_PM: - bfd_putl16 ((bfd_vma) (value >> 1), where); - break; - - case BFD_RELOC_AVR_LDI: - if (value > 255) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("operand out of range: %ld"), value); - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value), where); - break; - - case BFD_RELOC_AVR_6: - if ((value > 63) || (value < 0)) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("operand out of range: %ld"), value); - bfd_putl16 ((bfd_vma) insn | ((value & 7) | ((value & (3 << 3)) << 7) | ((value & (1 << 5)) << 8)), where); - break; - - case BFD_RELOC_AVR_6_ADIW: - if ((value > 63) || (value < 0)) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("operand out of range: %ld"), value); - bfd_putl16 ((bfd_vma) insn | (value & 0xf) | ((value & 0x30) << 2), where); - break; - - case BFD_RELOC_AVR_LO8_LDI: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value), where); - break; - - case BFD_RELOC_AVR_HI8_LDI: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 8), where); - break; - - case BFD_RELOC_AVR_MS8_LDI: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 24), where); - break; - - case BFD_RELOC_AVR_HH8_LDI: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 16), where); - break; - - case BFD_RELOC_AVR_LO8_LDI_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value), where); - break; - - case BFD_RELOC_AVR_HI8_LDI_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 8), where); - break; - - case BFD_RELOC_AVR_MS8_LDI_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 24), where); - break; - - case BFD_RELOC_AVR_HH8_LDI_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 16), where); - break; - - case BFD_RELOC_AVR_LO8_LDI_PM: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 1), where); - break; - - case BFD_RELOC_AVR_HI8_LDI_PM: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 9), where); - break; - - case BFD_RELOC_AVR_HH8_LDI_PM: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (value >> 17), where); - break; - - case BFD_RELOC_AVR_LO8_LDI_PM_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 1), where); - break; - - case BFD_RELOC_AVR_HI8_LDI_PM_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 9), where); - break; - - case BFD_RELOC_AVR_HH8_LDI_PM_NEG: - bfd_putl16 ((bfd_vma) insn | LDI_IMMEDIATE (-value >> 17), where); - break; - - case BFD_RELOC_AVR_CALL: - { - unsigned long x; - - x = bfd_getl16 (where); - if (value & 1) - as_bad_where (fixP->fx_file, fixP->fx_line, - _("odd address operand: %ld"), value); - value >>= 1; - x |= ((value & 0x10000) | ((value << 3) & 0x1f00000)) >> 16; - bfd_putl16 ((bfd_vma) x, where); - bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); - } - break; - - case BFD_RELOC_AVR_8_LO: - *where = 0xff & value; - break; - - case BFD_RELOC_AVR_8_HI: - *where = 0xff & (value >> 8); - break; - - case BFD_RELOC_AVR_8_HLO: - *where = 0xff & (value >> 16); - break; - - default: - as_fatal (_("line %d: unknown relocation type: 0x%x"), - fixP->fx_line, fixP->fx_r_type); - break; - } - } - else - { - switch ((int) fixP->fx_r_type) - { - case -BFD_RELOC_AVR_HI8_LDI_NEG: - case -BFD_RELOC_AVR_HI8_LDI: - case -BFD_RELOC_AVR_LO8_LDI_NEG: - case -BFD_RELOC_AVR_LO8_LDI: - as_bad_where (fixP->fx_file, fixP->fx_line, - _("only constant expression allowed")); - fixP->fx_done = 1; - break; - default: - break; - } - } -} - -/* GAS will call this to generate a reloc, passing the resulting reloc - to `bfd_install_relocation'. This currently works poorly, as - `bfd_install_relocation' often does the wrong thing, and instances of - `tc_gen_reloc' have been written to work around the problems, which - in turns makes it difficult to fix `bfd_install_relocation'. */ - -/* If while processing a fixup, a reloc really needs to be created - then it is done here. */ - -arelent * -tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, - fixS *fixp) -{ - arelent *reloc; - - if (fixp->fx_subsy != NULL) - { - as_bad_where (fixp->fx_file, fixp->fx_line, _("expression too complex")); - return NULL; - } - - reloc = xmalloc (sizeof (arelent)); - - reloc->sym_ptr_ptr = 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, - _("reloc %d not supported by object file format"), - (int) fixp->fx_r_type); - return NULL; - } - - if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT - || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) - reloc->address = fixp->fx_offset; - - reloc->addend = fixp->fx_offset; - - return reloc; -} - -void -md_assemble (char *str) -{ - struct avr_opcodes_s *opcode; - char op[11]; - - str = skip_space (extract_word (str, op, sizeof (op))); - - if (!op[0]) - 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); - return; - } - - /* Special case for opcodes with optional operands (lpm, elpm) - - version with operands exists in avr_opcodes[] in the next entry. */ - - if (*str && *opcode->constraints == '?') - ++opcode; - - 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); - - dwarf2_emit_insn (0); - - /* 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. */ - { - char *t = input_line_pointer; - - avr_operands (opcode, &str); - if (*skip_space (str)) - as_bad (_("garbage at end of line")); - input_line_pointer = t; - } -} - -typedef struct -{ - /* Name of the expression modifier allowed with .byte, .word, etc. */ - const char *name; - - /* Only allowed with n bytes of data. */ - int nbytes; - - /* Associated RELOC. */ - bfd_reloc_code_real_type reloc; - - /* Part of the error message. */ - const char *error; -} exp_mod_data_t; - -static const exp_mod_data_t exp_mod_data[] = -{ - /* Default, must be first. */ - { "", 0, BFD_RELOC_16, "" }, - /* Divides by 2 to get word address. Generate Stub. */ - { "gs", 2, BFD_RELOC_AVR_16_PM, "`gs' " }, - { "pm", 2, BFD_RELOC_AVR_16_PM, "`pm' " }, - /* The following are used together with avr-gcc's __memx address space - in order to initialize a 24-bit pointer variable with a 24-bit address. - For address in flash, hlo8 will contain the flash segment if the - symbol is located in flash. If the symbol is located in RAM; hlo8 - will contain 0x80 which matches avr-gcc's notion of how 24-bit RAM/flash - addresses linearize address space. */ - { "lo8", 1, BFD_RELOC_AVR_8_LO, "`lo8' " }, - { "hi8", 1, BFD_RELOC_AVR_8_HI, "`hi8' " }, - { "hlo8", 1, BFD_RELOC_AVR_8_HLO, "`hlo8' " }, - { "hh8", 1, BFD_RELOC_AVR_8_HLO, "`hh8' " }, - /* End of list. */ - { NULL, 0, 0, NULL } -}; - -/* Data to pass between `avr_parse_cons_expression' and `avr_cons_fix_new'. */ -static const exp_mod_data_t *pexp_mod_data = &exp_mod_data[0]; - -/* Parse special CONS expression: pm (expression) or alternatively - gs (expression). These are used for addressing program memory. Moreover, - define lo8 (expression), hi8 (expression) and hlo8 (expression). */ - -void -avr_parse_cons_expression (expressionS *exp, int nbytes) -{ - const exp_mod_data_t *pexp = &exp_mod_data[0]; - char *tmp; - - pexp_mod_data = pexp; - - tmp = input_line_pointer = skip_space (input_line_pointer); - - /* The first entry of exp_mod_data[] contains an entry if no - expression modifier is present. Skip it. */ - - for (pexp++; pexp->name; pexp++) - { - int len = strlen (pexp->name); - - if (nbytes == pexp->nbytes - && strncasecmp (input_line_pointer, pexp->name, len) == 0) - { - input_line_pointer = skip_space (input_line_pointer + len); - - if (*input_line_pointer == '(') - { - input_line_pointer = skip_space (input_line_pointer + 1); - pexp_mod_data = pexp; - expression (exp); - - if (*input_line_pointer == ')') - ++input_line_pointer; - else - { - as_bad (_("`)' required")); - pexp_mod_data = &exp_mod_data[0]; - } - - return; - } - - input_line_pointer = tmp; - - break; - } - } - - expression (exp); -} - -void -avr_cons_fix_new (fragS *frag, - int where, - int nbytes, - expressionS *exp) -{ - int bad = 0; - - switch (pexp_mod_data->reloc) - { - default: - if (nbytes == 1) - fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_8); - else if (nbytes == 2) - fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_16); - else if (nbytes == 4) - fix_new_exp (frag, where, nbytes, exp, FALSE, BFD_RELOC_32); - else - bad = 1; - break; - - case BFD_RELOC_AVR_16_PM: - case BFD_RELOC_AVR_8_LO: - case BFD_RELOC_AVR_8_HI: - case BFD_RELOC_AVR_8_HLO: - if (nbytes == pexp_mod_data->nbytes) - fix_new_exp (frag, where, nbytes, exp, FALSE, pexp_mod_data->reloc); - else - bad = 1; - break; - } - - if (bad) - as_bad (_("illegal %srelocation size: %d"), pexp_mod_data->error, nbytes); - - pexp_mod_data = &exp_mod_data[0]; -} - -static bfd_boolean -mcu_has_3_byte_pc (void) -{ - int mach = avr_mcu->mach; - - return mach == bfd_mach_avr6 - || mach == bfd_mach_avrxmega6 - || mach == bfd_mach_avrxmega7; -} - -void -tc_cfi_frame_initial_instructions (void) -{ - /* AVR6 pushes 3 bytes for calls. */ - int return_size = (mcu_has_3_byte_pc () ? 3 : 2); - - /* The CFA is the caller's stack location before the call insn. */ - /* Note that the stack pointer is dwarf register number 32. */ - cfi_add_CFA_def_cfa (32, return_size); - - /* Note that AVR consistently uses post-decrement, which means that things - do not line up the same way as for targers that use pre-decrement. */ - cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, 1-return_size); -} |