Hi ERich;
Am Freitag, 3. Oktober 2014, 18:45:22 schrieb Erich Titl:
> Hi Folks
>
> I am trying to reconnect with leaf. The uboot build still fails at the
> same place.
> How do you build uboot and what compiler version do you use
uboot should be updated, fixed whatever. It fails for me as well.
And more, uboot should be tested, documented and intergrated.
It had been just a testand a start if someone wants to work on it.
So either ignore it, or probably you help to fix it.
kp
> on 13.02.2014 12:02, Erich Titl wrote:
> > Hi
> >
> > While compiling 5.x I am getting stuck at uboot
> >
> >
> > part_efi.c: In function 'gpt_fill_pte':
> > part_efi.c:433:38: error: iteration 32u invokes undefined behavior
> > [-Werror=aggressive-loop-optimizations]
> >
> > (efi_char16_t)(partitions[i].name[k]);
> >
> > ^
> >
> > part_efi.c:431:3: note: containing loop
> >
> > for (k = 0; k < name_len; k++)
> > ^
> >
> > cc1: all warnings being treated as errors
> >
> >
> > the gcc is from the actual toolchain
> > i486-unknown-linux-uclibc-gcc (GCC) 4.8.2
> >
> > the code looks like
> >
> > /* partition attributes */
> > memset(&gpt_e[i].attributes, 0,
> >
> > sizeof(gpt_entry_attributes));
> >
> > /* partition name */
> > name_len = sizeof(gpt_e[i].partition_name)
> >
> > / sizeof(efi_char16_t);
> >
> > for (k = 0; k < name_len; k++)
> >
> > gpt_e[i].partition_name[k] =
> >
> > (efi_char16_t)(partitions[i].name[k]);
> >
> > I suspect the name_len to be the culprit, because
> >
> > name_len = sizeof(gpt_e[i].partition_name)
> >
> > / sizeof(efi_char16_t);
> >
> > 98 typedef struct _gpt_entry {
> > 99 efi_guid_t partition_type_guid;
> >
> > 100 efi_guid_t unique_partition_guid;
> > 101 __le64 starting_lba;
> > 102 __le64 ending_lba;
> > 103 gpt_entry_attributes attributes;
> > 104 efi_char16_t partition_name[72 / sizeof (efi_char16_t)];
> > 105 } __attribute__ ((packed)) gpt_entry;
> >
> >
> > partition name is of type efi_char16_t, so name_len will always be 1
> >
> > Is it possible that the compiler gets confused when trying to optimize
> > this loop?
> > Any ideas how to tackle this?
> >
> > Thanks
> >
> > Erich
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