[Mspgcc-users] Error in msp430-as mspgcc 4.7

[Jose L. H. L. <jos...@gm...>]

I just installed the latest mspgcc version (4.7 20120911) and I'm having
trouble placing variables in specific memory locations with the __asm__
attribute.

I've written a simple test program:

#include <msp430.h>
volatile unsigned int flag __asm__("0x2300");
int main(void) {
    WDTCTL = WDTPW + WDTHOLD;
    if(flag) {
    P1SEL &= ~BIT0;
    P1DIR |= BIT0;
    P1OUT |= BIT0;
    }
    LPM3;
    return 0;
}

Compiled it with:

msp430-gcc -mmcu=msp430f5529 -save-temps -mmemory-model=small src/main.c

The error message I get is:

main.s: Assembler messages:
main.s:7: Error: expected symbol name

And the generated assembler looks like this:
.file "main.c"
 .arch msp430f5529
.cpu 430xv2
.mpy 32dw
 .cpux_target sr20

.comm 0x2300,2,2
 .section .init9,"ax",@progbits
.p2align 1,0
 .global main
.type main, @function
/***********************
 * Function `main'
 ***********************/
main:
mov r1, r4
 add #4, r4
mov #23168, &__WDTCTL
 mov &0x2300, r15
cmp #0, r15
 jeq .L2
mov.b &__PASEL_L, r15
 and.b #-2, r15
mov.b r15, &__PASEL_L
 mov.b &__PADIR_L, r15
bis.b #1, r15
 mov.b r15, &__PADIR_L
mov.b &__PAOUT_L, r15
 bis.b #1, r15
mov.b r15, &__PAOUT_L
.L2:
bis #208, r2
mov #0, r15
.LIRD0:
.size main, .-main
.ident "GCC: (GNU) 4.7.0 20120322 (mspgcc dev 20120911)"

The versions of the tools I'm using:
msp430-gcc (GCC) 4.7.0 20120322 (mspgcc dev 20120911)
GNU assembler (GNU Binutils) 2.22 (mspgcc dev 20120911)

I'm not familiar at all with the 20-bit series, but I'd like to know if I'm
missing a command line option or something else.

Kind regards,
Jose