[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH for-2.5] configure: Don't disable optimization f
From: |
John Snow |
Subject: |
Re: [Qemu-devel] [PATCH for-2.5] configure: Don't disable optimization for non-fortify builds |
Date: |
Mon, 9 Nov 2015 11:38:48 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 11/09/2015 10:28 AM, Paolo Bonzini wrote:
>
>
> On 09/11/2015 16:14, Peter Maydell wrote:
>> Commit b553a0428014636bc inadvertently disabled optimization
>> for all non-fortify builds. Fix this bug so we only do an
>> unoptimized build if we want debug.
>>
>> Signed-off-by: Peter Maydell <address@hidden>
>> ---
>> configure | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/configure b/configure
>> index b687764..46fd8bd 100755
>> --- a/configure
>> +++ b/configure
>> @@ -4451,6 +4451,8 @@ if test "$gcov" = "yes" ; then
>> LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
>> elif test "$fortify_source" = "yes" ; then
>> CFLAGS="-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS"
>> +elif test "$debug" = "no"; then
>> + CFLAGS="-O2 $CFLAGS"
>> fi
>
> I think what was intended is:
>
> if test "$gcov" = "yes" ; then
> CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
> LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
> elif test "$debug" = "no" ; then
> if test "$fortify_source" = "yes"; then
> CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS"
> fi
> CFLAGS="-O2 $CFLAGS"
> fi
>
> ... so that --enable-debug does not disable _FORTIFY_SOURCE.
>
> Paolo
>
>> ##########################################
>>
I was trying to maintain the behavior before my clang/ccache fixes where
--enable-debug did indeed disable _FORTIFY_SOURCE.
--js