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Print normal output only if "verbose" mode is requested.
(Logical change 1.104)
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27c3d57b90
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587bba5c1f
1 changed files with 8 additions and 4 deletions
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@ -32,7 +32,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include <libunwind.h>
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int errors;
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int verbose, errors;
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#define panic(args...) \
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{ ++errors; fprintf (stderr, args); return; }
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@ -64,7 +64,8 @@ backtrace (void)
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if (unw_get_proc_name (&cursor, name, sizeof (name), &offset) == 0
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&& off > 0)
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snprintf (off, sizeof (off), "+0x%lx", (long) offset);
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printf (" [%lx] <%s%s>\n", (long) ip, name, off);
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if (verbose)
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printf (" [%lx] <%s%s>\n", (long) ip, name, off);
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if (++count > 32)
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panic ("FAILURE: didn't reach beginning of unwind-chain\n");
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}
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@ -83,7 +84,8 @@ b (void)
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static void
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a (void)
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{
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printf ("backtrace() from atexit()-handler:\n");
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if (verbose)
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printf ("backtrace() from atexit()-handler:\n");
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b();
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if (errors)
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abort (); /* cannot portably call exit() from an atexit() handler */
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@ -91,12 +93,14 @@ a (void)
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Test_Class::Test_Class (void)
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{
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printf ("backtrace() from constructor:\n");
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if (verbose)
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printf ("backtrace() from constructor:\n");
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b();
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}
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int
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main (int argc, char **argv)
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{
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verbose = argc > 1;
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return atexit (a);
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}
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