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um: Use POSIX ucontext_t instead of struct ucontext
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); Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Richard Weinberger <richard@nod.at>
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2 changed files with 2 additions and 2 deletions
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@ -159,7 +159,7 @@ static void (*handlers[_NSIG])(int sig, struct siginfo *si, mcontext_t *mc) = {
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static void hard_handler(int sig, siginfo_t *si, void *p)
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{
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struct ucontext *uc = p;
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ucontext_t *uc = p;
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mcontext_t *mc = &uc->uc_mcontext;
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unsigned long pending = 1UL << sig;
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@ -10,7 +10,7 @@
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void __attribute__ ((__section__ (".__syscall_stub")))
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stub_segv_handler(int sig, siginfo_t *info, void *p)
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{
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struct ucontext *uc = p;
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ucontext_t *uc = p;
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GET_FAULTINFO_FROM_MC(*((struct faultinfo *) STUB_DATA),
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&uc->uc_mcontext);
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