[msp430-elf] Incorrect placement of uninitialized variables to .noinit

I am unable to reproduce this problem.  I tried this very simple example ...

int global;

int main()
{
   return global;
}

With both compiler versions, the variable global ends up in the .bss section.

Please supply a test case which shows global variables ending up in the .noinit section.  Please include the exact compiler options used.

Thanks and regards,

-George

I have narrowed it down further. Looks like it is not an issue with the compiler, but related to a change in the linker scripts. In my case, I saw the issue when building for MSP430F5529.

Using the simple example you specified, the following commands will recreate the issue:

D:/programs/mspgcc_ti_3.2.2.0/bin/msp430-elf-gcc -mmcu=msp430f5529 -T D:/programs/mspgcc_ti_3.2.2.0/include/msp430f5529.ld -o gcc_bug.elf main.c
D:/programs/mspgcc_ti_3.2.2.0/bin/msp430-elf-objdump -t -j .bss -j .noinit gcc_bug.elf > gcc_bug.txt

The resulting txt file:

gcc_bug.elf:     file format elf32-msp430

SYMBOL TABLE:
0000247e l    d  .bss    00000000 .bss
00002490 l    d  .noinit    00000000 .noinit
0000247e l     O .bss    00000001 completed.2761
00002480 l     O .bss    00000002 dtor_idx.2763
00002482 l     O .bss    0000000e object.2776
00002490 g     O .noinit    00000002 global
0000247e g       .bss    00000000 __bssstart
00004400 g       .noinit    00000000 __stack
00002492 g       .noinit    00000000 _end

If I force it to use the old linker script (from 2.1.1.0) the "global" symbol is mapped to bss correctly. I tried a 1xx-series device and it worked fine too.