On Wed, Nov 15, 2017 at 12:15:00PM +0100, Richard Weinberger wrote: > Am Mittwoch, 15. November 2017, 12:04:16 CET schrieb Krzysztof Mazur: > > On Wed, Nov 15, 2017 at 11:19:41AM +0100, Richard Weinberger wrote: > > > Am Mittwoch, 15. November 2017, 11:12:39 CET schrieb Krzysztof Mazur: > > > > glibc 2.26 removed the 'struct ucontext' to "improve" POSIX compliance > > > > and break programs, including User Mode Linux. Fix User Mode Linux > > > > by using POSIX ucontext_t. > > > > > > > > This fixes: > > > > > > > > arch/um/os-Linux/signal.c: In function 'hard_handler': > > > > arch/um/os-Linux/signal.c:163:22: error: dereferencing pointer to > > > > incomplete type 'struct ucontext' mcontext_t *mc = &uc->uc_mcontext; > > > > arch/x86/um/stub_segv.c: In function 'stub_segv_handler': > > > > arch/x86/um/stub_segv.c:16:13: error: dereferencing pointer to > > > > incomplete > > > > type 'struct ucontext' &uc->uc_mcontext); > > > > > > Do all older glibcs have ucontext_t? > > > Otherwise this patch will break other stuff. > > > > Yes, ucontext_t typedef was always available. They changed: > > > > typedef struct ucontext { ... } ucontex_t; > > > > to > > > > typedef struct ucontext_t { ... } ucontex_t; > > > > https://sourceware.org/glibc/wiki/Release/2.26#Removal_of_.27struct_ucontext > > .27 > > Okay, then we can mark your patch as stable and hope for the best. ;-)
Thanks Krzysiek