Hi all, On Thu, 15 Jun 2017 14:05:22 +1000 Stephen Rothwell <s...@canb.auug.org.au> wrote: > > On Wed, 14 Jun 2017 19:18:51 -0700 Kees Cook <keesc...@chromium.org> wrote: > > > > CONFIG_FORTIFY_SOURCE implements fortify_panic() as a __noreturn function, > > so objtool needs to know about it too. > > > > Suggested-by: Daniel Micay <danielmi...@gmail.com> > > Signed-off-by: Kees Cook <keesc...@chromium.org> > > Cc: Josh Poimboeuf <jpoim...@redhat.com> > > --- > > tools/objtool/builtin-check.c | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c > > index 282a60368b14..5f66697fe1e0 100644 > > --- a/tools/objtool/builtin-check.c > > +++ b/tools/objtool/builtin-check.c > > @@ -192,7 +192,8 @@ static int __dead_end_function(struct objtool_file > > *file, struct symbol *func, > > "complete_and_exit", > > "kvm_spurious_fault", > > "__reiserfs_panic", > > - "lbug_with_loc" > > + "lbug_with_loc", > > + "fortify_panic", > > }; > > > > if (func->bind == STB_WEAK) > > -- > > 2.7.4 > > OK, I have added this to the end of linux-next today (in the part of > Andrew's tree afte the linux-next merge). I also move the fortify > string patch to after it (but I assume I will still need to revert it).
So after that the errors (x86_64 allmodconfig build) are only: In file included from include/linux/bitmap.h:8:0, from include/linux/cpumask.h:11, from arch/x86/include/asm/cpumask.h:4, from arch/x86/include/asm/msr.h:10, from arch/x86/include/asm/processor.h:20, from arch/x86/include/asm/cpufeature.h:4, from arch/x86/include/asm/thread_info.h:52, from include/linux/thread_info.h:37, from arch/x86/include/asm/preempt.h:6, from include/linux/preempt.h:80, from include/linux/spinlock.h:50, from include/linux/mmzone.h:7, from include/linux/gfp.h:5, from arch/x86/power/hibernate_64.c:11: In function 'memcpy', inlined from 'relocate_restore_code' at arch/x86/power/hibernate_64.c:150:2, inlined from 'swsusp_arch_resume' at arch/x86/power/hibernate_64.c:186:8: include/linux/string.h:309:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter __read_overflow2(); ^ In file included from include/linux/bitmap.h:8:0, from include/linux/cpumask.h:11, from arch/x86/include/asm/cpumask.h:4, from arch/x86/include/asm/msr.h:10, from arch/x86/include/asm/processor.h:20, from arch/x86/include/asm/cpufeature.h:4, from arch/x86/include/asm/thread_info.h:52, from include/linux/thread_info.h:37, from arch/x86/include/asm/preempt.h:6, from include/linux/preempt.h:80, from include/linux/spinlock.h:50, from include/linux/mmzone.h:7, from include/linux/gfp.h:5, from include/linux/mm.h:9, from kernel/kexec_file.c:15: In function 'memcmp', inlined from 'kexec_load_purgatory' at kernel/kexec_file.c:900:6: include/linux/string.h:348:4: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object passed as 1st parameter __read_overflow(); ^ -- Cheers, Stephen Rothwell