Memory Initialization

Mostafa Al Marakshi

I'm using CCS v6 , tirtos_tivac_2_01_00_03 , xdctools_3_30_04_52_core

At startup the memory is initialized to zero , I need to disable this , Is this valid ? if yes how to do so.

i need to leave the RAM contents as it is after reset, because my application should log some events.

Thanks

over 10 years ago

0 Karl Wechsler over 10 years ago

TI__Mastermind 20805 points

The ELF file format has the boot code initialize all .bss to 0 at boot time.

The linker might have an option to disable this, but then you need to make sure that your code initializes all global variables that need to be '0' explicitly. I'll forward this link to someone in the linker team who can hopefully comment on how to disable this auto-0-initialization.

-Karl-

0 George Mock over 10 years ago in reply to Karl Wechsler

TI__Guru**** 249520 points

Karl Wechsler said:
how to disable this auto-0-initialization.

Use the linker option --zero_init=off. Before you do that, carefully read the warnings in the section titled Zero Initialization in the ARM assembly language tools manual.

Thanks and regards,

-George

0 Mostafa Al Marakshi over 10 years ago in reply to Karl Wechsler

Intellectual 370 points

Thanks Karl

But i need to know if there are an option to control this initialization in runtime ?

Processors

Processors forum

Memory Initialization