diff options
Diffstat (limited to 'gcc/config/avr/avr-c.c')
| -rw-r--r-- | gcc/config/avr/avr-c.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/gcc/config/avr/avr-c.c b/gcc/config/avr/avr-c.c index d5c40e6..f66f361 100644 --- a/gcc/config/avr/avr-c.c +++ b/gcc/config/avr/avr-c.c @@ -321,6 +321,23 @@ avr_cpu_cpp_builtins (struct cpp_reader *pfile) } if (AVR_XMEGA) cpp_define (pfile, "__AVR_XMEGA__"); + + if (AVR_TINY) + { + cpp_define (pfile, "__AVR_TINY__"); + + /* Define macro "__AVR_TINY_PM_BASE_ADDRESS__" with mapped program memory + start address. This macro shall be referred where mapped program memory + is accessed. (Eg. copying data section (do_copy_data) contents to data + memory region. + NOTE: + Program memory of AVR_TINY devices can not be accessed directly, it has + been mapped to the data memory. For AVR_TINY devices (ATtiny4/ 5/ 9/ 10/ + 20 and 40) mapped program memory starts at 0x4000. + */ + cpp_define (pfile, "__AVR_TINY_PM_BASE_ADDRESS__=0x4000"); + } + if (avr_current_arch->have_eijmp_eicall) { cpp_define (pfile, "__AVR_HAVE_EIJMP_EICALL__"); @@ -376,7 +393,10 @@ avr_cpu_cpp_builtins (struct cpp_reader *pfile) /* Only supply __FLASH<n> macro if the address space is reasonable for this target. The address space qualifier itself is still supported, but using it will throw an error. */ - && avr_addrspace[i].segment < avr_n_flash) + && avr_addrspace[i].segment < avr_n_flash + /* Only support __MEMX macro if we have LPM. */ + && (AVR_HAVE_LPM || avr_addrspace[i].pointer_size <= 2)) + { const char *name = avr_addrspace[i].name; char *Name = (char*) alloca (1 + strlen (name)); |