/* Definitions of target machine for GNU compiler,
for ATMEL AVR at90s8515, ATmega103/103L, ATmega603/603L microcontrollers.
- Copyright (C) 1998-2014 Free Software Foundation, Inc.
+ Copyright (C) 1998-2020 Free Software Foundation, Inc.
Contributed by Denis Chertykov (chertykov@gmail.com)
This file is part of GCC.
#define TARGET_CPU_CPP_BUILTINS() avr_cpu_cpp_builtins (pfile)
-#define AVR_HAVE_JMP_CALL (avr_current_arch->have_jmp_call)
-#define AVR_HAVE_MUL (avr_current_arch->have_mul)
-#define AVR_HAVE_MOVW (avr_current_arch->have_movw_lpmx)
-#define AVR_HAVE_LPMX (avr_current_arch->have_movw_lpmx)
-#define AVR_HAVE_ELPM (avr_current_arch->have_elpm)
-#define AVR_HAVE_ELPMX (avr_current_arch->have_elpmx)
-#define AVR_HAVE_RAMPD (avr_current_arch->have_rampd)
-#define AVR_HAVE_RAMPX (avr_current_arch->have_rampd)
-#define AVR_HAVE_RAMPY (avr_current_arch->have_rampd)
-#define AVR_HAVE_RAMPZ (avr_current_arch->have_elpm \
- || avr_current_arch->have_rampd)
-#define AVR_HAVE_EIJMP_EICALL (avr_current_arch->have_eijmp_eicall)
+#define AVR_SHORT_CALLS (TARGET_SHORT_CALLS \
+ && avr_arch == &avr_arch_types[ARCH_AVRXMEGA3])
+#define AVR_HAVE_JMP_CALL (avr_arch->have_jmp_call && ! AVR_SHORT_CALLS)
+#define AVR_HAVE_MUL (avr_arch->have_mul)
+#define AVR_HAVE_MOVW (avr_arch->have_movw_lpmx)
+#define AVR_HAVE_LPM (!AVR_TINY)
+#define AVR_HAVE_LPMX (avr_arch->have_movw_lpmx)
+#define AVR_HAVE_ELPM (avr_arch->have_elpm)
+#define AVR_HAVE_ELPMX (avr_arch->have_elpmx)
+#define AVR_HAVE_RAMPD (avr_arch->have_rampd)
+#define AVR_HAVE_RAMPX (avr_arch->have_rampd)
+#define AVR_HAVE_RAMPY (avr_arch->have_rampd)
+#define AVR_HAVE_RAMPZ (avr_arch->have_elpm \
+ || avr_arch->have_rampd)
+#define AVR_HAVE_EIJMP_EICALL (avr_arch->have_eijmp_eicall)
/* Handling of 8-bit SP versus 16-bit SP is as follows:
+FIXME: DRIVER_SELF_SPECS has changed.
-msp8 is used internally to select the right multilib for targets with
8-bit SP. -msp8 is set automatically by DRIVER_SELF_SPECS for devices
with 8-bit SP or by multilib generation machinery. If a frame pointer is
__AVR_HAVE_8BIT_SP__ and __AVR_HAVE_16BIT_SP__. During multilib generation
there is always __AVR_SP8__ == __AVR_HAVE_8BIT_SP__. */
-#define AVR_HAVE_8BIT_SP \
- ((avr_current_device->dev_attribute & AVR_SHORT_SP) || \
- TARGET_TINY_STACK || avr_sp8)
+#define AVR_HAVE_8BIT_SP \
+ (TARGET_TINY_STACK || avr_sp8)
#define AVR_HAVE_SPH (!avr_sp8)
#define AVR_2_BYTE_PC (!AVR_HAVE_EIJMP_EICALL)
#define AVR_3_BYTE_PC (AVR_HAVE_EIJMP_EICALL)
-#define AVR_XMEGA (avr_current_arch->xmega_p)
+#define AVR_XMEGA (avr_arch->xmega_p)
+#define AVR_TINY (avr_arch->tiny_p)
#define BITS_BIG_ENDIAN 0
#define BYTES_BIG_ENDIAN 0
#define LONG_TYPE_SIZE (INT_TYPE_SIZE == 8 ? 16 : 32)
#define LONG_LONG_TYPE_SIZE (INT_TYPE_SIZE == 8 ? 32 : 64)
#define FLOAT_TYPE_SIZE 32
-#define DOUBLE_TYPE_SIZE 32
-#define LONG_DOUBLE_TYPE_SIZE 32
+#define DOUBLE_TYPE_SIZE (avr_double)
+#define LONG_DOUBLE_TYPE_SIZE (avr_long_double)
+
#define LONG_LONG_ACCUM_TYPE_SIZE 64
#define DEFAULT_SIGNED_CHAR 1
#define FIRST_PSEUDO_REGISTER 36
+#define GENERAL_REGNO_P(N) IN_RANGE (N, 2, 31)
+#define GENERAL_REG_P(X) (REG_P (X) && GENERAL_REGNO_P (REGNO (X)))
+
#define FIXED_REGISTERS {\
1,1,/* r0 r1 */\
0,0,/* r2 r3 */\
#define ADJUST_REG_ALLOC_ORDER avr_adjust_reg_alloc_order()
-#define HARD_REGNO_NREGS(REGNO, MODE) \
- ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
-
-#define HARD_REGNO_MODE_OK(REGNO, MODE) avr_hard_regno_mode_ok(REGNO, MODE)
-
-#define MODES_TIEABLE_P(MODE1, MODE2) 1
-
enum reg_class {
NO_REGS,
R0_REG, /* r0 */
#define REGNO_OK_FOR_INDEX_P(NUM) 0
-#define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE) \
- avr_hard_regno_call_part_clobbered (REGNO, MODE)
-
#define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true
#define STACK_PUSH_CODE POST_DEC
-#define STACK_GROWS_DOWNWARD
-
-#define STARTING_FRAME_OFFSET avr_starting_frame_offset()
+#define STACK_GROWS_DOWNWARD 1
#define STACK_POINTER_OFFSET 1
#define ARG_POINTER_REGNUM 34
-#define STATIC_CHAIN_REGNUM 2
+#define STATIC_CHAIN_REGNUM ((AVR_TINY) ? 18 :2)
#define ELIMINABLE_REGS { \
- {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
- {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
- {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
- ,{FRAME_POINTER_REGNUM+1,STACK_POINTER_REGNUM+1}}
+ { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
+ { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM }, \
+ { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
+ { FRAME_POINTER_REGNUM + 1, STACK_POINTER_REGNUM + 1 } }
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
OFFSET = avr_initial_elimination_offset (FROM, TO)
} \
} while (0)
-#define BRANCH_COST(speed_p, predictable_p) avr_branch_cost
+/* We increase branch costs after reload in order to keep basic-block
+ reordering from introducing out-of-line jumps and to prefer fall-through
+ edges instead. The default branch costs are 0, mainly because otherwise
+ do_store_flag might come up with bloated code. */
+#define BRANCH_COST(speed_p, predictable_p) \
+ (avr_branch_cost + (reload_completed ? 4 : 0))
#define SLOW_BYTE_ACCESS 0
-#define NO_FUNCTION_CSE
+#define NO_FUNCTION_CSE 1
#define REGISTER_TARGET_PRAGMAS() \
do { \
#define SUPPORTS_INIT_PRIORITY 0
-#define JUMP_TABLES_IN_TEXT_SECTION 0
+/* We pretend jump tables are in text section because otherwise,
+ final.c will switch to .rodata before jump tables and thereby
+ triggers __do_copy_data. As we implement ASM_OUTPUT_ADDR_VEC,
+ we still have full control over the jump tables themselves. */
+#define JUMP_TABLES_IN_TEXT_SECTION 1
#define ASM_COMMENT_START " ; "
avr_asm_output_aligned_decl_common (STREAM, DECL, NAME, SIZE, ALIGN, false)
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
- asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+ avr_asm_asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN, \
+ asm_output_aligned_bss)
#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(STREAM, DECL, NAME, SIZE, ALIGN) \
avr_asm_output_aligned_decl_common (STREAM, DECL, NAME, SIZE, ALIGN, true)
fprintf (STREAM, "\tpop\tr%d", REGNO); \
}
-#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
- avr_output_addr_vec_elt (STREAM, VALUE)
+#define ASM_OUTPUT_ADDR_VEC(TLABEL, TDATA) \
+ avr_output_addr_vec (TLABEL, TDATA)
#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
do { \
#undef WORD_REGISTER_OPERATIONS
-#define MOVE_MAX 4
+/* Can move only a single byte from memory to reg in a
+ single instruction. */
+
+#define MOVE_MAX 1
+
+/* Allow upto two bytes moves to occur using by_pieces
+ infrastructure */
-#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
+#define MOVE_MAX_PIECES 2
+
+/* Set MOVE_RATIO to 3 to allow memory moves upto 4 bytes to happen
+ by pieces when optimizing for speed, like it did when MOVE_MAX_PIECES
+ was 4. When optimizing for size, allow memory moves upto 2 bytes.
+ Also see avr_use_by_pieces_infrastructure_p. */
+
+#define MOVE_RATIO(speed) ((speed) ? 3 : 2)
#define Pmode HImode
#define ADJUST_INSN_LENGTH(INSN, LENGTH) \
(LENGTH = avr_adjust_insn_length (INSN, LENGTH))
-extern const char *avr_device_to_as (int argc, const char **argv);
-extern const char *avr_device_to_ld (int argc, const char **argv);
-extern const char *avr_device_to_data_start (int argc, const char **argv);
-extern const char *avr_device_to_startfiles (int argc, const char **argv);
-extern const char *avr_device_to_devicelib (int argc, const char **argv);
-extern const char *avr_device_to_sp8 (int argc, const char **argv);
+extern const char *avr_devicespecs_file (int, const char**);
+extern const char *avr_double_lib (int, const char**);
#define EXTRA_SPEC_FUNCTIONS \
- { "device_to_as", avr_device_to_as }, \
- { "device_to_ld", avr_device_to_ld }, \
- { "device_to_data_start", avr_device_to_data_start }, \
- { "device_to_startfile", avr_device_to_startfiles }, \
- { "device_to_devicelib", avr_device_to_devicelib }, \
- { "device_to_sp8", avr_device_to_sp8 },
-
-#define DRIVER_SELF_SPECS " %:device_to_sp8(%{mmcu=*:%*}) "
-#define CPP_SPEC ""
+ { "double-lib", avr_double_lib }, \
+ { "device-specs-file", avr_devicespecs_file },
-#define CC1_SPEC ""
+/* Driver self specs has lmited functionality w.r.t. '%s' for dynamic specs.
+ Apply '%s' to a static string to inflate the file (directory) name which
+ is used to diagnose problems with reading the specs file. */
-#define CC1PLUS_SPEC "%{!frtti:-fno-rtti} \
- %{!fenforce-eh-specs:-fno-enforce-eh-specs} \
- %{!fexceptions:-fno-exceptions}"
+#undef DRIVER_SELF_SPECS
+#define DRIVER_SELF_SPECS \
+ " %:double-lib(%{m*:m%*})" \
+ " %:device-specs-file(device-specs%s %{mmcu=*:%*})"
-#define ASM_SPEC "%:device_to_as(%{mmcu=*:%*}) "
-
-#define LINK_SPEC "\
-%{mrelax:--relax\
- %{mpmem-wrap-around:%{mmcu=at90usb8*:--pmem-wrap-around=8k}\
- %{mmcu=atmega16*:--pmem-wrap-around=16k}\
- %{mmcu=atmega32*|\
- mmcu=at90can32*:--pmem-wrap-around=32k}\
- %{mmcu=atmega64*|\
- mmcu=at90can64*|\
- mmcu=at90usb64*:--pmem-wrap-around=64k}}}\
-%:device_to_ld(%{mmcu=*:%*})\
-%:device_to_data_start(%{mmcu=*:%*})\
-%{shared:%eshared is not supported}"
-
-#define LIB_SPEC \
- "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lc }}}}}"
-
-#define LIBSTDCXX "gcc"
/* No libstdc++ for now. Empty string doesn't work. */
+#define LIBSTDCXX "gcc"
-#define LIBGCC_SPEC \
- "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lgcc }}}}}"
-
-#define STARTFILE_SPEC "%:device_to_startfile(%{mmcu=*:%*})"
-
-#define ENDFILE_SPEC ""
-
-/* This is the default without any -mmcu=* option (AT90S*). */
-#define MULTILIB_DEFAULTS { "mmcu=avr2" }
+/* This is the default without any -mmcu=* option. */
+#define MULTILIB_DEFAULTS { "mmcu=" AVR_MMCU_DEFAULT }
#define TEST_HARD_REG_CLASS(CLASS, REGNO) \
TEST_HARD_REG_BIT (reg_class_contents[ (int) (CLASS)], REGNO)
/* 'true' if the above is_foo predicates are sanity-checked to avoid
multiple diagnose for the same function. */
int attributes_checked_p;
+
+ /* 'true' - if current function shall not use '__gcc_isr' pseudo
+ instructions as specified by the "no_gccisr" attribute. */
+ int is_no_gccisr;
+
+ /* Used for `__gcc_isr' pseudo instruction handling of
+ non-naked ISR prologue / epilogue(s). */
+ struct
+ {
+ /* 'true' if this function actually uses "*gasisr" insns. */
+ int yes;
+ /* 'true' if this function is allowed to use "*gasisr" insns. */
+ int maybe;
+ /* The register numer as printed by the Done chunk. */
+ int regno;
+ } gasisr;
+
+ /* 'true' if this function references .L__stack_usage like with
+ __builtin_return_address. */
+ int use_L__stack_usage;
};
/* AVR does not round pushes, but the existence of this macro is
#define ACCUMULATE_OUTGOING_ARGS avr_accumulate_outgoing_args()
#define INIT_EXPANDERS avr_init_expanders()
+
+/* Flags used for io and address attributes. */
+#define SYMBOL_FLAG_IO_LOW (SYMBOL_FLAG_MACH_DEP << 4)
+#define SYMBOL_FLAG_IO (SYMBOL_FLAG_MACH_DEP << 5)
+#define SYMBOL_FLAG_ADDRESS (SYMBOL_FLAG_MACH_DEP << 6)
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