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On a 64bit kernel build the compiler aligns the _sifields union in the struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define compensates for this alignment and thus fixes the wait testcase of the strace package. The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that _sigchld.si_stime variable is missed to be copied and thus after a copy_siginfo() will have uninitialized values. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org
14 lines
212 B
C
14 lines
212 B
C
#ifndef _PARISC_SIGINFO_H
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#define _PARISC_SIGINFO_H
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#if defined(__LP64__)
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#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
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#endif
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#include <asm-generic/siginfo.h>
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#undef NSIGTRAP
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#define NSIGTRAP 4
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#endif
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