Initial commit
Diff: mbed-dev-master/cmsis/TARGET_CORTEX_M/TOOLCHAIN_IAR/cmain.S
- Revision:
- 0:bb348c97df44
diff -r 000000000000 -r bb348c97df44 mbed-dev-master/cmsis/TARGET_CORTEX_M/TOOLCHAIN_IAR/cmain.S --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-dev-master/cmsis/TARGET_CORTEX_M/TOOLCHAIN_IAR/cmain.S Wed Sep 16 01:11:49 2020 +0000 @@ -0,0 +1,101 @@ +/************************************************** + * + * Part two of the system initialization code, contains C-level + * initialization, thumb-2 only variant. + * + * $Revision: 59783 $ + * + **************************************************/ +/* Copyright 2008-2017, IAR Systems AB. + This source code is the property of IAR Systems. The source code may only + be used together with the IAR Embedded Workbench. Redistribution and use + in source and binary forms, with or without modification, is permitted + provided that the following conditions are met: + - Redistributions of source code, in whole or in part, must retain the + above copyright notice, this list of conditions and the disclaimer below. + - IAR Systems name may not be used to endorse or promote products + derived from this software without specific prior written permission. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +; -------------------------------------------------- +; 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 mbed_main + 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 + + MOVS r0,#0 ; No parameters + FUNCALL __cmain, mbed_main + BL mbed_main + + FUNCALL __cmain, main + BL main +_main: + FUNCALL __cmain, exit + BL exit + + END