IAR Embedded Workbench. Where is __iar_program_start?

Question

In the code for a STM8 application there is a line

extern void __iar_program_start(void);

now I've searched and this function is nowhere to be found. What is this and where is located??

It's the program entry point, usually in `cstartup.s`. I suggest that you read the IAR manual**s** (both for ide and the compiler). — user694733, Oct 20 '16 at 07:12

score 3 · Answer 1 · edited Sep 19 '17 at 21:56

3

Found it in a module called cstartup_M.o inside a library which is part of the IAR tool installation.

In my case, the library is called rt7M_tl.a, but it probably depends on your target CPU.

edited Sep 19 '17 at 21:56

theUtherSide

answered Sep 19 '17 at 19:31

Eyal B

score 0 · Answer 2 · answered Sep 22 '17 at 08:39

0

These function may generate for C version of code, cause this type of instruction you can find in assembly.

__iar_program_start:
        LDW     X, #CSTACK$$Limit-1     ; Set stackpointer
        LDW     SP, X

answered Sep 22 '17 at 08:39

mryldz

2 Answers2