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gdb: make 'thread apply all bt' always work on all threads
even if some appear to have (partially) corrupted stack traces. E.g. kernel crashdumps typically have stack weirdness at userland-kernel boundary. Obtained from: vendor/upstream (CVS rev 1.118 of stack.c) Reviewed by: emaste Approved by: jhb
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=194061
@ -1230,6 +1230,22 @@ backtrace_command_1 (char *count_exp, int show_locals, int from_tty)
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printf_filtered ("(More stack frames follow...)\n");
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}
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struct backtrace_command_args
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{
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char *count_exp;
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int show_locals;
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int from_tty;
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};
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/* Stub to call backtrace_command_1 by way of an error catcher. */
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static int
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backtrace_command_stub (void *data)
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{
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struct backtrace_command_args *args = (struct backtrace_command_args *)data;
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backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty);
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return 0;
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}
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static void
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backtrace_command (char *arg, int from_tty)
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{
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@ -1237,6 +1253,7 @@ backtrace_command (char *arg, int from_tty)
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char **argv = (char **) NULL;
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int argIndicatingFullTrace = (-1), totArgLen = 0, argc = 0;
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char *argPtr = arg;
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struct backtrace_command_args btargs;
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if (arg != (char *) NULL)
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{
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@ -1286,7 +1303,10 @@ backtrace_command (char *arg, int from_tty)
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}
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}
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backtrace_command_1 (argPtr, (argIndicatingFullTrace >= 0), from_tty);
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btargs.count_exp = argPtr;
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btargs.show_locals = (argIndicatingFullTrace >= 0);
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btargs.from_tty = from_tty;
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catch_errors (backtrace_command_stub, (char *)&btargs, "", RETURN_MASK_ERROR);
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if (argIndicatingFullTrace >= 0 && totArgLen > 0)
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xfree (argPtr);
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@ -1299,7 +1319,11 @@ static void backtrace_full_command (char *arg, int from_tty);
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static void
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backtrace_full_command (char *arg, int from_tty)
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{
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backtrace_command_1 (arg, 1, from_tty);
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struct backtrace_command_args btargs;
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btargs.count_exp = arg;
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btargs.show_locals = 1;
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btargs.from_tty = from_tty;
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catch_errors (backtrace_command_stub, (char *)&btargs, "", RETURN_MASK_ERROR);
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}
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