вот мой icf
...
define block CHECKSUM { ro section .checksum };
initialize by copy { readwrite };
do not initialize { section .noinit };
keep { section .checksum* };
place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
place at address mem:__Reset_Handler_text_start__ { readonly section .Reset_Handler_text };
place in ROM_region { readonly };
place in RAM_region { readwrite,
block CSTACK, block HEAP };
place in ROM_region { last block CHECKSUM };
а линкер отчитывается так:
*******************************************************************************
*** PLACEMENT SUMMARY
***
"A0": place at address 0x0 { ro section .intvec };
"A1": place at address 0xc0 { ro section .Reset_Handler_text };
"P1": place in [from 0x0 to 0x7'ffff] { ro };
define block CSTACK with size = 1K, alignment = 8 { };
define block HEAP with size = 1K, alignment = 8 { };
"P2": place in [from 0x2000'0000 to 0x2000'ffff] {
rw, block CSTACK, block HEAP };
define block CHECKSUM { ro section .checksum };
"P3": place in [from 0x0 to 0x7'ffff] { last block CHECKSUM };
initialize by copy { rw };
keep { section .checksum* };
"P1", part 1 of 2:
.text ...
.rodata ...
"P3": 0x2
CHECKSUM 0x2'e884 0x2 <Block>
.checksum zero 0x2'e884 0x2 crc_fw.o [9]
- 0x2'e886 0x2
"P1", part 2 of 2: 0x1b8
Initializer bytes const 0x2'e886 0x1b8 <for P2-1>
- 0x2'ea3e 0x1b8
"P2", part 1 of 3: 0x2c21
P2-1 0x2000'0000 0x2c21 <Init block>
.data inited 0x2000'0000 0xc8 cosem_app_calendar.o [11]
...
В документации ненашел в какой секции держатся данные инициализации, поэтому и способа их положить явно ненашел
