[arm-gnu] undefined reference to _init

[Brad Badke]

I am converting my ARM code to over to CodeSourcery. I am using both C and C++. In my ARM code I called __rt_entry to initialize the C run time library and jump to my main().  In my startup.S file for CodeSourcery I have done the following:

@Invoke all static constructors
   ldr r12,=__libc_init_array
@    ldr r12,= __cs3_start_c
    mov lr,pc @set the return address
    BX r12 @the target code can be ARM or THUMB
   ldr r12,=main @Enter the C/C++ code
    mov lr,pc @set the return address
    bx r12 @the target code can be ARM or THUMB
@@@    BL       __rt_entry   @@This is what we did for ARM compiler

This results in the following linker error:
In function `__libc_init_array': init.c:(.text+0x40): undefined reference to `_init'

Any ideas on what I need to re-implement or link in?

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