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authorDana Robinson <43805+derobins@users.noreply.github.com>2021-08-17 19:55:18 (GMT)
committerGitHub <noreply@github.com>2021-08-17 19:55:18 (GMT)
commitc0ef1fd6de3ff20cc8fc49c05ca71254c784bea6 (patch)
treefb2bdf05e276e3614b3b5c343447cd82f4e6718b /src/H5detect.c
parent2bca2ca6f1ef1b60bb8541413c5f2e68ff5549d3 (diff)
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Reverts PR 906 and 907 due to binary compatibility issues (#918)
Diffstat (limited to 'src/H5detect.c')
-rw-r--r--src/H5detect.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/H5detect.c b/src/H5detect.c
index fd5e980..e4fe453 100644
--- a/src/H5detect.c
+++ b/src/H5detect.c
@@ -1655,6 +1655,21 @@ main(int argc, char *argv[])
if (!rawoutstream)
rawoutstream = stdout;
+#if defined(H5_HAVE_SETSYSINFO) && defined(SSI_NVPAIRS)
+#if defined(UAC_NOPRINT) && defined(UAC_SIGBUS)
+ /*
+ * Make sure unaligned access generates SIGBUS and doesn't print warning
+ * messages so that we can detect alignment constraints on the DEC Alpha.
+ */
+ int nvpairs[2];
+ nvpairs[0] = SSIN_UACPROC;
+ nvpairs[1] = UAC_NOPRINT | UAC_SIGBUS;
+ if (setsysinfo(SSI_NVPAIRS, nvpairs, 1, 0, 0) < 0) {
+ fprintf(stderr, "H5detect: unable to turn off UAC handling: %s\n", HDstrerror(errno));
+ }
+#endif
+#endif
+
#if defined(H5SETJMP) && defined(H5_HAVE_SIGNAL)
/* verify the SIGBUS and SIGSEGV handlers work properly */
if (verify_signal_handlers(SIGBUS, sigbus_handler) != 0) {