[Bug target/49868] Implement named address space to place/access data in flash memory
gjl at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Feb 28 08:45:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49868
--- Comment #16 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2012-02-28 08:44:14 UTC ---
Author: gjl
Date: Tue Feb 28 08:44:08 2012
New Revision: 184614
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184614
Log:
PR target/49868
PR target/52261
* doc/extend.texi (AVR Named Address Spaces): No more try to fix
address spaces located outside of device flash.
* config/avr/avr.h (base_arch_s): Remove field n_segments.
(mcu_type_s): Add field n_flash.
* config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
(AVR_MCU): Add N_FLASH argument.
* config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
* config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
macro __FLASH<n> if that address space makes sense for the device.
* config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
outside of target flash.
(avr_asm_named_section): Ditto.
(avr_asm_select_section): Ditto.
(avr_addr_space_convert): Ditto.
(avr_emit_movmemhi): Ditto.
(avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
address space is outside of device flash.
(avr_insert_attributes): Ditto.
(avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
avr_current_arch->n_segments.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/avr/avr-c.c
trunk/gcc/config/avr/avr-devices.c
trunk/gcc/config/avr/avr-mcus.def
trunk/gcc/config/avr/avr.c
trunk/gcc/config/avr/avr.h
trunk/gcc/doc/extend.texi
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