From 590da9f261378d2a600750b33aa4e259446871c0 Mon Sep 17 00:00:00 2001 From: gjl Date: Wed, 25 Jan 2012 18:17:07 +0000 Subject: [PATCH] PR target/49868 Rename __pgm to __flash. Rename __pgm1 to __flash1. Rename __pgm2 to __flash2. Rename __pgm3 to __flash3. Rename __pgm4 to __flash4. Rename __pgm5 to __flash5. Rename __pgmx to __memx. * doc/extend.texi (AVR Named Address Spaces) Rename address space names as indicated above. * config/avr/avr.c (avr_addrspace): Ditto. * config/avr/avr-protos.h (avr_mem_pgmx_p): Rename to avr_mem_memx_p. (avr_mem_pgm_p): Rename to avr_mem_flash_p. * config/avr/predicates.md: Ditto. * config/avr/avr.c Ditto, and (avr_decl_pgmx_p): Rename to avr_decl_memx_p. (avr_decl_pgm_p): Rename to avr_decl_flash_p. * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH. (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1. (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2. (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3. (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4. (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5. (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX. * config/avr/avr.c: Ditto. * config/avr/avr.md: Ditto. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183529 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 32 +++++++++++++ gcc/config/avr/avr-protos.h | 4 +- gcc/config/avr/avr.c | 110 +++++++++++++++++++++---------------------- gcc/config/avr/avr.h | 14 +++--- gcc/config/avr/avr.md | 14 +++--- gcc/config/avr/predicates.md | 6 +-- gcc/doc/extend.texi | 58 +++++++++++------------ 7 files changed, 135 insertions(+), 103 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 82e5165..fc98fb4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,35 @@ +2012-01-25 Georg-Johann Lay + + PR target/49868 + Rename __pgm to __flash. + Rename __pgm1 to __flash1. + Rename __pgm2 to __flash2. + Rename __pgm3 to __flash3. + Rename __pgm4 to __flash4. + Rename __pgm5 to __flash5. + Rename __pgmx to __memx. + * doc/extend.texi (AVR Named Address Spaces) + Rename address space names as indicated above. + * config/avr/avr.c (avr_addrspace): Ditto. + + * config/avr/avr-protos.h + (avr_mem_pgmx_p): Rename to avr_mem_memx_p. + (avr_mem_pgm_p): Rename to avr_mem_flash_p. + * config/avr/predicates.md: Ditto. + * config/avr/avr.c Ditto, and + (avr_decl_pgmx_p): Rename to avr_decl_memx_p. + (avr_decl_pgm_p): Rename to avr_decl_flash_p. + + * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH. + (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1. + (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2. + (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3. + (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4. + (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5. + (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX. + * config/avr/avr.c: Ditto. + * config/avr/avr.md: Ditto. + 2012-01-25 Jason Merrill PR c++/51992 diff --git a/gcc/config/avr/avr-protos.h b/gcc/config/avr/avr-protos.h index 09f8271..f64dbbf 100644 --- a/gcc/config/avr/avr-protos.h +++ b/gcc/config/avr/avr-protos.h @@ -120,8 +120,8 @@ extern reg_class_t avr_mode_code_base_reg_class (enum machine_mode, addr_space_t extern bool avr_regno_mode_code_ok_for_base_p (int, enum machine_mode, addr_space_t, RTX_CODE, RTX_CODE); extern rtx avr_incoming_return_addr_rtx (void); extern rtx avr_legitimize_reload_address (rtx*, enum machine_mode, int, int, int, int, rtx (*)(rtx,int)); -extern bool avr_mem_pgm_p (rtx); -extern bool avr_mem_pgmx_p (rtx); +extern bool avr_mem_flash_p (rtx); +extern bool avr_mem_memx_p (rtx); extern bool avr_load_libgcc_p (rtx); extern bool avr_xload_libgcc_p (enum machine_mode); #endif /* RTX_CODE */ diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c index 846c796..6626087 100644 --- a/gcc/config/avr/avr.c +++ b/gcc/config/avr/avr.c @@ -83,13 +83,13 @@ const avr_addrspace_t avr_addrspace[] = { { ADDR_SPACE_RAM, 0, 2, "" , 0 }, - { ADDR_SPACE_PGM, 1, 2, "__pgm", 0 }, - { ADDR_SPACE_PGM1, 1, 2, "__pgm1", 1 }, - { ADDR_SPACE_PGM2, 1, 2, "__pgm2", 2 }, - { ADDR_SPACE_PGM3, 1, 2, "__pgm3", 3 }, - { ADDR_SPACE_PGM4, 1, 2, "__pgm4", 4 }, - { ADDR_SPACE_PGM5, 1, 2, "__pgm5", 5 }, - { ADDR_SPACE_PGMX, 1, 3, "__pgmx", 0 }, + { ADDR_SPACE_FLASH, 1, 2, "__flash", 0 }, + { ADDR_SPACE_FLASH1, 1, 2, "__flash1", 1 }, + { ADDR_SPACE_FLASH2, 1, 2, "__flash2", 2 }, + { ADDR_SPACE_FLASH3, 1, 2, "__flash3", 3 }, + { ADDR_SPACE_FLASH4, 1, 2, "__flash4", 4 }, + { ADDR_SPACE_FLASH5, 1, 2, "__flash5", 5 }, + { ADDR_SPACE_MEMX, 1, 3, "__memx", 0 }, { 0 , 0, 0, NULL, 0 } }; @@ -177,7 +177,7 @@ const struct mcu_type_s *avr_current_device; static GTY(()) section *progmem_swtable_section; /* Unnamed sections associated to __attribute__((progmem)) aka. PROGMEM - or to address space __pgm*. */ + or to address space __flash*. */ static GTY(()) section *progmem_section[6]; /* Condition for insns/expanders from avr-dimode.md. */ @@ -485,7 +485,7 @@ avr_scalar_mode_supported_p (enum machine_mode mode) /* Return TRUE if DECL is a VAR_DECL located in Flash and FALSE, otherwise. */ static bool -avr_decl_pgm_p (tree decl) +avr_decl_flash_p (tree decl) { if (TREE_CODE (decl) != VAR_DECL || TREE_TYPE (decl) == error_mark_node) @@ -501,7 +501,7 @@ avr_decl_pgm_p (tree decl) address space and FALSE, otherwise. */ static bool -avr_decl_pgmx_p (tree decl) +avr_decl_memx_p (tree decl) { if (TREE_CODE (decl) != VAR_DECL || TREE_TYPE (decl) == error_mark_node) @@ -509,14 +509,14 @@ avr_decl_pgmx_p (tree decl) return false; } - return (ADDR_SPACE_PGMX == TYPE_ADDR_SPACE (TREE_TYPE (decl))); + return (ADDR_SPACE_MEMX == TYPE_ADDR_SPACE (TREE_TYPE (decl))); } /* Return TRUE if X is a MEM rtx located in Flash and FALSE, otherwise. */ bool -avr_mem_pgm_p (rtx x) +avr_mem_flash_p (rtx x) { return (MEM_P (x) && !ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (x))); @@ -527,10 +527,10 @@ avr_mem_pgm_p (rtx x) address space and FALSE, otherwise. */ bool -avr_mem_pgmx_p (rtx x) +avr_mem_memx_p (rtx x) { return (MEM_P (x) - && ADDR_SPACE_PGMX == MEM_ADDR_SPACE (x)); + && ADDR_SPACE_MEMX == MEM_ADDR_SPACE (x)); } @@ -2432,7 +2432,7 @@ avr_load_libgcc_p (rtx op) return (n_bytes > 2 && !AVR_HAVE_LPMX - && avr_mem_pgm_p (op)); + && avr_mem_flash_p (op)); } /* Return true if a value of mode MODE is read by __xload_* function. */ @@ -2802,8 +2802,8 @@ output_movqi (rtx insn, rtx operands[], int *l) rtx src = operands[1]; int *real_l = l; - if (avr_mem_pgm_p (src) - || avr_mem_pgm_p (dest)) + if (avr_mem_flash_p (src) + || avr_mem_flash_p (dest)) { return avr_out_lpm (insn, operands, real_l); } @@ -2853,8 +2853,8 @@ output_movhi (rtx insn, rtx xop[], int *plen) gcc_assert (GET_MODE_SIZE (GET_MODE (dest)) == 2); - if (avr_mem_pgm_p (src) - || avr_mem_pgm_p (dest)) + if (avr_mem_flash_p (src) + || avr_mem_flash_p (dest)) { return avr_out_lpm (insn, xop, plen); } @@ -3424,8 +3424,8 @@ output_movsisf (rtx insn, rtx operands[], int *l) rtx src = operands[1]; int *real_l = l; - if (avr_mem_pgm_p (src) - || avr_mem_pgm_p (dest)) + if (avr_mem_flash_p (src) + || avr_mem_flash_p (dest)) { return avr_out_lpm (insn, operands, real_l); } @@ -3725,8 +3725,8 @@ avr_out_movpsi (rtx insn, rtx *op, int *plen) rtx dest = op[0]; rtx src = op[1]; - if (avr_mem_pgm_p (src) - || avr_mem_pgm_p (dest)) + if (avr_mem_flash_p (src) + || avr_mem_flash_p (dest)) { return avr_out_lpm (insn, op, plen); } @@ -6810,10 +6810,10 @@ avr_progmem_p (tree decl, tree attributes) if (TREE_CODE (decl) != VAR_DECL) return 0; - if (avr_decl_pgmx_p (decl)) + if (avr_decl_memx_p (decl)) return 2; - if (avr_decl_pgm_p (decl)) + if (avr_decl_flash_p (decl)) return 1; if (NULL_TREE @@ -6878,8 +6878,8 @@ avr_nonconst_pointer_addrspace (tree typ) } -/* Sanity check NODE so that all pointers targeting address space AS1 - go along with CONST qualifier. Writing to this address space should +/* Sanity check NODE so that all pointers targeting non-generic addres spaces + go along with CONST qualifier. Writing to these address spaces should be detected and complained about as early as possible. */ static bool @@ -7195,11 +7195,11 @@ avr_section_type_flags (tree decl, const char *name, int reloc) addr_space_t as = TYPE_ADDR_SPACE (TREE_TYPE (decl)); /* Attribute progmem puts data in generic address space. - Set section flags as if it was in __pgm to get the right + Set section flags as if it was in __flash to get the right section prefix in the remainder. */ if (ADDR_SPACE_GENERIC_P (as)) - as = ADDR_SPACE_PGM; + as = ADDR_SPACE_FLASH; flags |= as * SECTION_MACH_DEP; flags &= ~SECTION_WRITE; @@ -7244,7 +7244,7 @@ avr_encode_section_info (tree decl, rtx rtl, int new_decl_p) patch address space. */ if (-1 == avr_progmem_p (decl, DECL_ATTRIBUTES (decl))) - as = ADDR_SPACE_PGM; + as = ADDR_SPACE_FLASH; AVR_SYMBOL_SET_ADDR_SPACE (sym, as); } @@ -9469,12 +9469,12 @@ avr_addr_space_legitimate_address_p (enum machine_mode mode, rtx x, case ADDR_SPACE_GENERIC: return avr_legitimate_address_p (mode, x, strict); - case ADDR_SPACE_PGM: - case ADDR_SPACE_PGM1: - case ADDR_SPACE_PGM2: - case ADDR_SPACE_PGM3: - case ADDR_SPACE_PGM4: - case ADDR_SPACE_PGM5: + case ADDR_SPACE_FLASH: + case ADDR_SPACE_FLASH1: + case ADDR_SPACE_FLASH2: + case ADDR_SPACE_FLASH3: + case ADDR_SPACE_FLASH4: + case ADDR_SPACE_FLASH5: switch (GET_CODE (x)) { @@ -9490,9 +9490,9 @@ avr_addr_space_legitimate_address_p (enum machine_mode mode, rtx x, break; } - break; /* PGM */ + break; /* FLASH */ - case ADDR_SPACE_PGMX: + case ADDR_SPACE_MEMX: if (REG_P (x)) ok = (!strict && can_create_pseudo_p()); @@ -9508,7 +9508,7 @@ avr_addr_space_legitimate_address_p (enum machine_mode mode, rtx x, && REGNO (lo) == REG_Z); } - break; /* PGMX */ + break; /* MEMX */ } if (avr_log.legitimate_address_p) @@ -9567,8 +9567,8 @@ avr_addr_space_convert (rtx src, tree type_from, tree type_to) /* Up-casting from 16-bit to 24-bit pointer. */ - if (as_from != ADDR_SPACE_PGMX - && as_to == ADDR_SPACE_PGMX) + if (as_from != ADDR_SPACE_MEMX + && as_to == ADDR_SPACE_MEMX) { int msb; rtx sym = src; @@ -9584,9 +9584,9 @@ avr_addr_space_convert (rtx src, tree type_from, tree type_to) address space. */ if (SYMBOL_REF == GET_CODE (sym) - && ADDR_SPACE_PGM == AVR_SYMBOL_GET_ADDR_SPACE (sym)) + && ADDR_SPACE_FLASH == AVR_SYMBOL_GET_ADDR_SPACE (sym)) { - as_from = ADDR_SPACE_PGM; + as_from = ADDR_SPACE_FLASH; } /* Linearize memory: RAM has bit 23 set. */ @@ -9606,8 +9606,8 @@ avr_addr_space_convert (rtx src, tree type_from, tree type_to) /* Down-casting from 24-bit to 16-bit throws away the high byte. */ - if (as_from == ADDR_SPACE_PGMX - && as_to != ADDR_SPACE_PGMX) + if (as_from == ADDR_SPACE_MEMX + && as_to != ADDR_SPACE_MEMX) { rtx new_src = gen_reg_rtx (Pmode); @@ -9651,7 +9651,7 @@ avr_emit_movmemhi (rtx *xop) rtx loop_reg, addr0, addr1, a_src, a_dest, insn, xas, reg_x; rtx a_hi8 = NULL_RTX; - if (avr_mem_pgm_p (xop[0])) + if (avr_mem_flash_p (xop[0])) return false; if (!CONST_INT_P (xop[2])) @@ -9666,7 +9666,7 @@ avr_emit_movmemhi (rtx *xop) if (PSImode == GET_MODE (a_src)) { - gcc_assert (as == ADDR_SPACE_PGMX); + gcc_assert (as == ADDR_SPACE_MEMX); loop_mode = (count < 0x100) ? QImode : HImode; loop_reg = gen_rtx_REG (loop_mode, 24); @@ -9687,7 +9687,7 @@ avr_emit_movmemhi (rtx *xop) } else if (!ADDR_SPACE_GENERIC_P (as)) { - as = ADDR_SPACE_PGM; + as = ADDR_SPACE_FLASH; } addr1 = a_src; @@ -9718,7 +9718,7 @@ avr_emit_movmemhi (rtx *xop) gcc_assert (TMP_REGNO == LPM_REGNO); - if (as != ADDR_SPACE_PGMX) + if (as != ADDR_SPACE_MEMX) { /* Load instruction ([E]LPM or LD) is known at compile time: Do the copy-loop inline. */ @@ -9792,7 +9792,7 @@ avr_out_movmem (rtx insn ATTRIBUTE_UNUSED, rtx *xop, int *plen) avr_asm_len ("ld %6,%a1+", xop, plen, 1); break; - case ADDR_SPACE_PGM: + case ADDR_SPACE_FLASH: if (AVR_HAVE_LPMX) avr_asm_len ("lpm %6,%a1+", xop, plen, 1); @@ -9801,11 +9801,11 @@ avr_out_movmem (rtx insn ATTRIBUTE_UNUSED, rtx *xop, int *plen) "adiw %1,1", xop, plen, 2); break; - case ADDR_SPACE_PGM1: - case ADDR_SPACE_PGM2: - case ADDR_SPACE_PGM3: - case ADDR_SPACE_PGM4: - case ADDR_SPACE_PGM5: + case ADDR_SPACE_FLASH1: + case ADDR_SPACE_FLASH2: + case ADDR_SPACE_FLASH3: + case ADDR_SPACE_FLASH4: + case ADDR_SPACE_FLASH5: if (AVR_HAVE_ELPMX) avr_asm_len ("elpm %6,%a1+", xop, plen, 1); diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h index 33017ba..55eca49 100644 --- a/gcc/config/avr/avr.h +++ b/gcc/config/avr/avr.h @@ -158,13 +158,13 @@ extern const avr_addrspace_t avr_addrspace[]; enum { ADDR_SPACE_RAM, - ADDR_SPACE_PGM, - ADDR_SPACE_PGM1, - ADDR_SPACE_PGM2, - ADDR_SPACE_PGM3, - ADDR_SPACE_PGM4, - ADDR_SPACE_PGM5, - ADDR_SPACE_PGMX + ADDR_SPACE_FLASH, + ADDR_SPACE_FLASH1, + ADDR_SPACE_FLASH2, + ADDR_SPACE_FLASH3, + ADDR_SPACE_FLASH4, + ADDR_SPACE_FLASH5, + ADDR_SPACE_MEMX }; #define TARGET_CPU_CPP_BUILTINS() avr_cpu_cpp_builtins (pfile) diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md index 7ce211d..0c47794 100644 --- a/gcc/config/avr/avr.md +++ b/gcc/config/avr/avr.md @@ -367,7 +367,7 @@ operands[3] = gen_rtx_REG (HImode, REG_Z); operands[2] = force_operand (XEXP (operands[1], 0), NULL_RTX); operands[1] = replace_equiv_address (operands[1], operands[3]); - set_mem_addr_space (operands[1], ADDR_SPACE_PGM); + set_mem_addr_space (operands[1], ADDR_SPACE_FLASH); }) (define_insn "load__libgcc" @@ -391,7 +391,7 @@ (clobber (reg:HI REG_Z))] "can_create_pseudo_p() && !avr_xload_libgcc_p (QImode) - && avr_mem_pgmx_p (operands[1]) + && avr_mem_memx_p (operands[1]) && REG_P (XEXP (operands[1], 0))" { gcc_unreachable(); } "&& 1" @@ -416,7 +416,7 @@ (clobber (reg:QI 21)) (clobber (reg:HI REG_Z))] "can_create_pseudo_p() - && avr_mem_pgmx_p (operands[1]) + && avr_mem_memx_p (operands[1]) && REG_P (XEXP (operands[1], 0))" { gcc_unreachable(); } "&& 1" @@ -442,7 +442,7 @@ DONE; }) -;; Move value from address space pgmx to a register +;; Move value from address space memx to a register ;; These insns must be prior to respective generic move insn. (define_insn "xload_8" @@ -495,7 +495,7 @@ rtx dest = operands[0]; rtx src = operands[1]; - if (avr_mem_pgm_p (dest)) + if (avr_mem_flash_p (dest)) DONE; /* One of the operands has to be in a register. */ @@ -506,7 +506,7 @@ operands[1] = src = copy_to_mode_reg (mode, src); } - if (avr_mem_pgmx_p (src)) + if (avr_mem_memx_p (src)) { rtx addr = XEXP (src, 0); @@ -682,7 +682,7 @@ { rtx addr = XEXP (operands[1], 0); - if (!avr_mem_pgm_p (operands[1]) + if (!avr_mem_flash_p (operands[1]) || !REG_P (addr) || reg_overlap_mentioned_p (addr, operands[0])) { diff --git a/gcc/config/avr/predicates.md b/gcc/config/avr/predicates.md index fff34b5..1792a28 100644 --- a/gcc/config/avr/predicates.md +++ b/gcc/config/avr/predicates.md @@ -57,17 +57,17 @@ (and (match_code "const_int") (match_test "IN_RANGE((INTVAL (op)), 0x20, (0x60 - GET_MODE_SIZE(mode)))"))) -;; Return 1 if OP is a general operand not in program memory +;; Return 1 if OP is a general operand not in flash memory (define_predicate "nop_general_operand" (and (match_operand 0 "general_operand") - (match_test "!avr_mem_pgm_p (op)"))) + (match_test "!avr_mem_flash_p (op)"))) ;; Return 1 if OP is an "ordinary" general operand, i.e. a general ;; operand whose load is not handled by a libgcc call or ELPM. (define_predicate "nox_general_operand" (and (match_operand 0 "general_operand") (not (match_test "avr_load_libgcc_p (op)")) - (not (match_test "avr_mem_pgmx_p (op)")))) + (not (match_test "avr_mem_memx_p (op)")))) ;; Return 1 if OP is the zero constant for MODE. (define_predicate "const0_operand" diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index e159736..b8c4696 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -1244,38 +1244,38 @@ needed to locate read-only data in flash memory without using (inline) assembler code. @table @code -@item __pgm -@cindex @code{__pgm} AVR Named Address Spaces -The @code{__pgm} qualifier will locate data in the +@item __flash +@cindex @code{__flash} AVR Named Address Spaces +The @code{__flash} qualifier will locate data in the @code{.progmem.data} section. Data will be read using the @code{LPM} instruction. Pointers to this address space are 16 bits wide. -@item __pgm1 -@item __pgm2 -@item __pgm3 -@item __pgm4 -@item __pgm5 -@cindex @code{__pgm1} AVR Named Address Spaces -@cindex @code{__pgm2} AVR Named Address Spaces -@cindex @code{__pgm3} AVR Named Address Spaces -@cindex @code{__pgm4} AVR Named Address Spaces -@cindex @code{__pgm5} AVR Named Address Spaces +@item __flash1 +@item __flash2 +@item __flash3 +@item __flash4 +@item __flash5 +@cindex @code{__flash1} AVR Named Address Spaces +@cindex @code{__flash2} AVR Named Address Spaces +@cindex @code{__flash3} AVR Named Address Spaces +@cindex @code{__flash4} AVR Named Address Spaces +@cindex @code{__flash5} AVR Named Address Spaces These are 16-bit address spaces locating data in section @code{.progmem@var{N}.data} where @var{N} refers to -address space @code{__pgm@var{N}}. +address space @code{__flash@var{N}}. The compiler will set the @code{RAMPZ} segment register approptiately before reading data by means of the @code{ELPM} instruction. On devices with less 64@tie{}kiB flash segments as indicated by the address space, the compiler will cut down the segment number to a number the device actually supports. Counting starts at@tie{}@code{0} -for space @code{__pgm}. For example, if you access address space -@code{__pgm3} on an ATmega128 device with two 64@tie{}kiB flash segments, -the compiler will generate a read from @code{__pgm1}, i.e.@: it +for space @code{__flash}. For example, if you access address space +@code{__flash3} on an ATmega128 device with two 64@tie{}kiB flash segments, +the compiler will generate a read from @code{__flash1}, i.e.@: it will load @code{RAMPZ} with@tie{}@code{1} before reading. -@item __pgmx -@cindex @code{__pgmx} AVR Named Address Spaces +@item __memx +@cindex @code{__memx} AVR Named Address Spaces This is a 24-bit address space that linearizes flash and RAM: If the high bit of the address is set, data is read from RAM using the lower two bytes as RAM address. @@ -1288,7 +1288,7 @@ Objects in this address space will be located in @code{.progmem.data}. @b{Example} @example -char my_read (const __pgm char ** p) +char my_read (const __flash char ** p) @{ /* p is a pointer to RAM that points to a pointer to flash. The first indirection of p will read that flash pointer @@ -1299,7 +1299,7 @@ char my_read (const __pgm char ** p) @} /* Locate array[] in flash memory */ -const __pgm int array[] = @{ 3, 5, 7, 11, 13, 17, 19 @}; +const __flash int array[] = @{ 3, 5, 7, 11, 13, 17, 19 @}; int i = 1; @@ -1316,8 +1316,8 @@ The purpose is to facilitate testing if respective address space support is available or not: @example -#ifdef __PGM -const __pgm int var = 1; +#ifdef __FLASH +const __flash int var = 1; int read_i (void) @{ @@ -1332,7 +1332,7 @@ int read_i (void) @{ return (int) pgm_read_word (&i); @} -#endif /* __PGM */ +#endif /* __FLASH */ @end example Notice that attribute @ref{AVR Variable Attributes,@code{progmem}} @@ -1347,13 +1347,13 @@ from @w{@uref{http://nongnu.org/avr-libc/user-manual,avr-libc}}. @itemize @item Reading across the 64@tie{}KiB section boundary of -the @code{__pgm} or @code{__pgm@var{N}} address spaces +the @code{__flash} or @code{__flash@var{N}} address spaces will show undefined behaviour. The only address space that supports reading across the 64@tie{}KiB flash segment boundaries is -@code{__pgmx}. +@code{__memx}. @item -If you use one if the @code{__pgm@var{N}} address spaces +If you use one if the @code{__flash@var{N}} address spaces you will have to arrange your linker skript to locate the @code{.progmem@var{N}.data} sections according to your needs. @@ -1372,8 +1372,8 @@ Code like the following is not yet supported because of missing support in avr-binutils, see @w{@uref{http://sourceware.org/PR13503,PR13503}}. @example -extern const __pgmx char foo; -const __pgmx void *pfoo = &foo; +extern const __memx char foo; +const __memx void *pfoo = &foo; @end example The code will throw an assembler warning and the high byte of @code{pfoo} will be initialized with@tie{}@code{0}, i.e.@: the -- 2.7.4