mbed-os
Fork of mbed-os by
cmsis/TOOLCHAIN_IAR/cmain.S
- Committer:
- xuaner
- Date:
- 2017-07-20
- Revision:
- 1:3deb71413561
- Parent:
- 0:f269e3021894
File content as of revision 1:3deb71413561:
/************************************************** * * Part two of the system initialization code, contains C-level * initialization, thumb-2 only variant. * * Copyright 2006 IAR Systems. All rights reserved. * * $Revision: 59783 $ * **************************************************/ ; -------------------------------------------------- ; Module ?cmain, C-level initialization. ; SECTION SHT$$PREINIT_ARRAY:CONST:NOROOT(2) SECTION SHT$$INIT_ARRAY:CONST:NOROOT(2) SECTION .text:CODE:NOROOT(2) PUBLIC __cmain ;; Keep ?main for legacy reasons, it is accessed in countless instances of cstartup.s around the world... PUBLIC ?main EXTWEAK __iar_data_init3 EXTWEAK __iar_argc_argv EXTERN __low_level_init EXTERN __call_ctors EXTERN main EXTERN exit EXTERN __iar_dynamic_initialization EXTERN mbed_sdk_init EXTERN SystemInit THUMB __cmain: ?main: ; Initialize segments. ; __segment_init and __low_level_init are assumed to use the same ; instruction set and to be reachable by BL from the ICODE segment ; (it is safest to link them in segment ICODE). FUNCALL __cmain, __low_level_init bl __low_level_init cmp r0,#0 beq ?l1 FUNCALL __cmain, __iar_data_init3 bl __iar_data_init3 MOVS r0,#0 ; No parameters FUNCALL __cmain, mbed_sdk_init BL mbed_sdk_init MOVS r0,#0 ; No parameters FUNCALL __cmain, __iar_dynamic_initialization BL __iar_dynamic_initialization ; C++ dynamic initialization ?l1: REQUIRE ?l3 SECTION .text:CODE:NOROOT(2) PUBLIC _main PUBLIC _call_main THUMB __iar_init$$done: ; Copy initialization is done ?l3: _call_main: MOVS r0,#0 ; No parameters FUNCALL __cmain, __iar_argc_argv BL __iar_argc_argv ; Maybe setup command line FUNCALL __cmain, main BL main _main: FUNCALL __cmain, exit BL exit END