Re: gcc 6.3 vs 8.2 Re: [RFC PATCH] powerpc: Enable kcov

2019-01-15 Thread Mathieu Malaterre
On Wed, Jan 16, 2019 at 6:09 AM Michael Ellerman wrote: > > Christophe Leroy writes: > > Le 15/01/2019 à 08:26, Mathieu Malaterre a écrit : > ... > >> > >> I did check that `custom_defconfig` is the minimal defconfig generated > >> by `savedefconfig` in both cases. > >> > >> Hints or comments

Re: gcc 6.3 vs 8.2 Re: [RFC PATCH] powerpc: Enable kcov

2019-01-15 Thread Michael Ellerman
Christophe Leroy writes: > Le 15/01/2019 à 08:26, Mathieu Malaterre a écrit : ... >> >> I did check that `custom_defconfig` is the minimal defconfig generated >> by `savedefconfig` in both cases. >> >> Hints or comments welcome, thanks much. > > I think you should do: > > make ARCH=powerpc

Re: gcc 6.3 vs 8.2 Re: [RFC PATCH] powerpc: Enable kcov

2019-01-15 Thread Christophe Leroy
Le 15/01/2019 à 08:26, Mathieu Malaterre a écrit : [Sorry to hijack this thread. ] On Tue, Jan 15, 2019 at 5:22 AM Andrew Donnellan wrote: kcov provides kernel coverage data that's useful for fuzzing tools like syzkaller. Wire up kcov support on powerpc. Disable kcov instrumentation on

Re: gcc 6.3 vs 8.2 Re: [RFC PATCH] powerpc: Enable kcov

2019-01-15 Thread Andrew Donnellan
On 15/1/19 6:26 pm, Mathieu Malaterre wrote: [Sorry to hijack this thread. ] On Tue, Jan 15, 2019 at 5:22 AM Andrew Donnellan wrote: kcov provides kernel coverage data that's useful for fuzzing tools like syzkaller. Wire up kcov support on powerpc. Disable kcov instrumentation on the same

gcc 6.3 vs 8.2 Re: [RFC PATCH] powerpc: Enable kcov

2019-01-14 Thread Mathieu Malaterre
[Sorry to hijack this thread. ] On Tue, Jan 15, 2019 at 5:22 AM Andrew Donnellan wrote: > > kcov provides kernel coverage data that's useful for fuzzing tools like > syzkaller. > > Wire up kcov support on powerpc. Disable kcov instrumentation on the same > files where we currently disable gcov