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5a999c2bef
commit 4d1a535b8e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
21 lines
455 B
C
21 lines
455 B
C
/*
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* Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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* Licensed under the GPL
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*/
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#include <sysdep/stub.h>
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#include <sysdep/faultinfo.h>
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#include <sysdep/mcontext.h>
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#include <sys/ucontext.h>
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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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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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trap_myself();
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}
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