Tux Leon / mbed-dev

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbed-dev by mbed official

targets/cmsis/TOOLCHAIN_IAR/cmain.S

Committer:
bogdanm
Date:
2015-10-01
Revision:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7

File content as of revision 0:9b334a45a8ff:

/**************************************************
 *
 * 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