Re: [PATCH 0/7] enable -Wwrite-strings for gas

[Andrew Pinski <pinskia at gmail dot com>]

On Mon, May 2, 2016 at 11:30 AM, Trevor Saunders <tbsaunde@tbsaunde.org> wrote:
> On Sun, May 01, 2016 at 09:44:06AM -0700, Andrew Pinski wrote:
>> On Tue, Mar 29, 2016 at 6:12 PM,  <tbsaunde+binutils@tbsaunde.org> wrote:
>> > From: Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
>> >
>> > Hi,
>> >
>> > At this point I think we've fixed basically all the -Wwrite-strings issues in
>> > gas that can be fixed reasonably without just adding casts.  So this series
>> > adds a handful of casts in several patches that try to explain why those casts
>> > are necessary, and then enables the warning for gas.
>> >
>> > I built one target per tc-*.c and regtested x86_64-linux-gnu, ok?
>>
>>
>> This patch set broke cross Canadian cross as the build compiler does
>> not have to be the same as the target compiler version on what options
>> are supported.
>> I use gcc 4.4.5 as my build compiler but the target compiler is GCC 7.
>
> I'm not sure what is going on, and would have to build a compiler that
> old, but it doesn't seem to make much sense.  According to
> https://gcc.gnu.org/onlinedocs/gcc-4.0.4/gcc/Warning-Options.html#Warning-Options
> -Wwrite-strings was supported in gcc 4.0, so presumably your gcc 4.4.5
> should accept it.


Sorry it was not this patch but rather the one which enable
-Wstack-usage one.  For some reason my mail client pointed to this
patch that added that.

Thanks,
Andrew


>
> Trev
>
>>
>> Thanks,
>> Andrew
>>
>> >
>> > Trev
>> >
>> >
>> > Trevor Saunders (7):
>> >   cast literal to char * when assigning to input_line_ptr
>> >   work around get_symbol_name () in sparc and ia64
>> >   cast to char * when assigning to optarg
>> >   cast the arg to md_assemble () to char *
>> >   tc-i960.c: add some casts when assigning literals to args[i]
>> >   make xtensa_section_rename () take const char *
>> >   enable -Wwrite-strings for gas
>> >
>> >  bfd/configure          | 20 ++++++++++++++++++--
>> >  bfd/warning.m4         |  4 ++++
>> >  binutils/configure     | 20 ++++++++++++++++++--
>> >  gas/Makefile.am        |  2 +-
>> >  gas/Makefile.in        |  2 +-
>> >  gas/as.c               |  2 +-
>> >  gas/config/tc-i960.c   | 26 +++++++++++++-------------
>> >  gas/config/tc-ia64.c   |  6 ++++--
>> >  gas/config/tc-m32c.c   |  8 ++++----
>> >  gas/config/tc-m32r.c   |  2 +-
>> >  gas/config/tc-msp430.c |  2 +-
>> >  gas/config/tc-nds32.c  | 10 +++++-----
>> >  gas/config/tc-sparc.c  |  2 +-
>> >  gas/config/tc-xtensa.c |  6 +++---
>> >  gas/config/tc-xtensa.h |  2 +-
>> >  gas/config/tc-z80.c    |  2 +-
>> >  gas/configure          | 20 ++++++++++++++++++--
>> >  gas/stabs.c            |  2 +-
>> >  gold/configure         | 16 ++++++++++++++++
>> >  gprof/configure        | 20 ++++++++++++++++++--
>> >  ld/configure           | 20 ++++++++++++++++++--
>> >  opcodes/configure      | 20 ++++++++++++++++++--
>> >  22 files changed, 166 insertions(+), 48 deletions(-)
>> >
>> > --
>> > 2.1.4
>> >