From 50f9ca2f0cf9f99a0686381e2f9818151c2933d9 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 29 Dec 2000 03:57:30 -0800 Subject: New test. From-SVN: r38533 --- gcc/testsuite/gcc.c-torture/execute/20001229-1.c | 48 ++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/20001229-1.c (limited to 'gcc') diff --git a/gcc/testsuite/gcc.c-torture/execute/20001229-1.c b/gcc/testsuite/gcc.c-torture/execute/20001229-1.c new file mode 100644 index 0000000..fecf197 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20001229-1.c @@ -0,0 +1,48 @@ +/* This testcase originally provoked an unaligned access fault on Alpha. + + Since Digital Unix and Linux (and probably others) by default fix + these up in the kernel, the failure was not visible unless one + is sitting at the console examining logs. + + So: If we know how, ask the kernel to deliver SIGBUS instead so + that the test case visibly fails. */ + +#if defined(__alpha__) && (defined(__linux__) || defined(__osf__)) +#ifdef __linux__ +#include +#include + +static inline int +setsysinfo(unsigned long op, void *buffer, unsigned long size, + int *start, void *arg, unsigned long flag) +{ + syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag); +} + +#else +#include +#endif + +static void __attribute__((constructor)) +trap_unaligned(void) +{ + unsigned int buf[2]; + buf[0] = SSIN_UACPROC; + buf[1] = UAC_SIGBUS | UAC_NOPRINT; + setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0); +} +#endif /* alpha */ + +void foo(char *a, char *b) { } + +void showinfo() +{ + char uname[33] = "", tty[38] = "/dev/"; + foo(uname, tty); +} + +int main() +{ + showinfo (); + exit (0); +} -- cgit v1.1