[microblaze-uclinux] gdb off by 4 bytes

[Jim Van Vorst <jvanvorst@xxxxxxxxx>]

I'm having a problem with gdb lying to me.  If I have this:

> #include <stdio.h>
>
> static char *MyStrings[] = {"string1", "string2", "string3"};
>
> char *Strings2[] = {"string2_1", "string2_2"};
>
> int
> main ()
> {
>     printf ("MyStrings = %x\n", MyStrings);
>     printf ("MyStrings[0] = %s\n", MyStrings[0]);
>
>     printf ("Strings2 = %x\n", Strings2);
>     printf ("Strings2[0] = %s\n", Strings2[0]);
>     getchar ();
>     return 0;
> }
It prints:
> MyStrings = 459ee170
> MyStrings[0] = string1
> Strings2 = 459ee168
> Strings2[0] = string2_1
But gdb reports:
> (gdb) p &MyStrings
> $1 = (char *(*)[3]) 0x459ee16c
> (gdb) p &Strings2
> $2 = (char *(*)[2]) 0x459ee168

gdb reports the static char* array off by -4 bytes.  This is with the 
2.6 kernel and these compile options:
> microblaze-uclinux-gcc  -c -Os -g -fomit-frame-pointer -pipe 
> -fno-common -fno-builtin -Wall  -mno-xl-soft-mul -mno-xl-soft-div 
> -mxl-barrel-shift -mcpu=v6.00.b   -DEMBED -I/<path>/petalinux-dist 
> -I/<path>/petalinux-dist/include -I/<path>/petalinux-dist/include 
> -Dlinux -D__linux__ -Dunix -D__uClinux__ -DLINUX -o test3.o test3.c
> microblaze-uclinux-gcc  -L/<path>/petalinux-dist/lib -mno-xl-soft-mul 
> -mno-xl-soft-div -mxl-barrel-shift -mcpu=v6.00.b  -o test3 test3.o
Any I run:
> $ microblaze-uclinux-gdb -nw test3.gdb
> GNU gdb 5.3PetaLinux 0.20 Build -rc1
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and 
> you are
> welcome to change it and/or distribute copies of it under certain 
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for 
> details.
> This GDB was configured as "--host=i686-pc-linux-gnu 
> --target=microblaze-uclinux"...
Anyone have a suggestion?

Thanks,
Jim




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