/* This testcase originally provoked an unaligned access fault on Alpha.
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/* This testcase originally provoked an unaligned access fault on Alpha.
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Since Digital Unix and Linux (and probably others) by default fix
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Since Digital Unix and Linux (and probably others) by default fix
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these up in the kernel, the failure was not visible unless one
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these up in the kernel, the failure was not visible unless one
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is sitting at the console examining logs.
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is sitting at the console examining logs.
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So: If we know how, ask the kernel to deliver SIGBUS instead so
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So: If we know how, ask the kernel to deliver SIGBUS instead so
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that the test case visibly fails. */
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that the test case visibly fails. */
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#if defined(__alpha__) && (defined(__linux__) || defined(__osf__))
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#if defined(__alpha__) && (defined(__linux__) || defined(__osf__))
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#ifdef __linux__
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#ifdef __linux__
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#include <asm/sysinfo.h>
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#include <asm/sysinfo.h>
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#include <asm/unistd.h>
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#include <asm/unistd.h>
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static inline int
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static inline int
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setsysinfo(unsigned long op, void *buffer, unsigned long size,
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setsysinfo(unsigned long op, void *buffer, unsigned long size,
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int *start, void *arg, unsigned long flag)
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int *start, void *arg, unsigned long flag)
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{
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{
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syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag);
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syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag);
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}
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}
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#else
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#else
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#include <sys/sysinfo.h>
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#include <sys/sysinfo.h>
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#include <sys/proc.h>
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#include <sys/proc.h>
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#endif
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#endif
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static void __attribute__((constructor))
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static void __attribute__((constructor))
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trap_unaligned(void)
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trap_unaligned(void)
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{
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{
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unsigned int buf[2];
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unsigned int buf[2];
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buf[0] = SSIN_UACPROC;
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buf[0] = SSIN_UACPROC;
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buf[1] = UAC_SIGBUS | UAC_NOPRINT;
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buf[1] = UAC_SIGBUS | UAC_NOPRINT;
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setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0);
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setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0);
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}
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}
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#endif /* alpha */
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#endif /* alpha */
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void foo(char *a, char *b) { }
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void foo(char *a, char *b) { }
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void showinfo()
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void showinfo()
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{
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{
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char uname[33] = "", tty[38] = "/dev/";
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char uname[33] = "", tty[38] = "/dev/";
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foo(uname, tty);
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foo(uname, tty);
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}
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}
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int main()
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int main()
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{
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{
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showinfo ();
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showinfo ();
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exit (0);
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exit (0);
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}
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}
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