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gh-127604: Add C stack dumps to faulthandler (#128159)
This commit is contained in:
Peter Bierma
GitHub
parent
ea8ec95cfa
commit
8dfa840773
13 changed files with 378 additions and 69 deletions
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@ -66,10 +66,41 @@ Dumping the traceback
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Added support for passing file descriptor to this function.
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Dumping the C stack
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-------------------
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.. versionadded:: next
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.. function:: dump_c_stack(file=sys.stderr)
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Dump the C stack trace of the current thread into *file*.
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If the Python build does not support it or the operating system
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does not provide a stack trace, then this prints an error in place
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of a dumped C stack.
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.. _c-stack-compatibility:
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C Stack Compatibility
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*********************
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If the system does not support the C-level :manpage:`backtrace(3)`,
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:manpage:`backtrace_symbols(3)`, or :manpage:`dladdr(3)`, then C stack dumps
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will not work. An error will be printed instead of the stack.
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Additionally, some compilers do not support :term:`CPython's <CPython>`
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implementation of C stack dumps. As a result, a different error may be printed
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instead of the stack, even if the the operating system supports dumping stacks.
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.. note::
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Dumping C stacks can be arbitrarily slow, depending on the DWARF level
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of the binaries in the call stack.
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Fault handler state
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-------------------
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.. function:: enable(file=sys.stderr, all_threads=True)
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.. function:: enable(file=sys.stderr, all_threads=True, c_stack=True)
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Enable the fault handler: install handlers for the :const:`~signal.SIGSEGV`,
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:const:`~signal.SIGFPE`, :const:`~signal.SIGABRT`, :const:`~signal.SIGBUS`
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@ -81,6 +112,10 @@ Fault handler state
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The *file* must be kept open until the fault handler is disabled: see
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:ref:`issue with file descriptors <faulthandler-fd>`.
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If *c_stack* is ``True``, then the C stack trace is printed after the Python
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traceback, unless the system does not support it. See :func:`dump_c_stack` for
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more information on compatibility.
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.. versionchanged:: 3.5
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Added support for passing file descriptor to this function.
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@ -95,6 +130,9 @@ Fault handler state
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Only the current thread is dumped if the :term:`GIL` is disabled to
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prevent the risk of data races.
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.. versionchanged:: next
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The dump now displays the C stack trace if *c_stack* is true.
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.. function:: disable()
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Disable the fault handler: uninstall the signal handlers installed by
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@ -699,6 +699,15 @@ errno
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(Contributed by James Roy in :gh:`126585`.)
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faulthandler
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------------
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* Add support for printing the C stack trace on systems that
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:ref:`support it <c-stack-compatibility>` via :func:`faulthandler.dump_c_stack`
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or via the *c_stack* argument in :func:`faulthandler.enable`.
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(Contributed by Peter Bierma in :gh:`127604`.)
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fnmatch
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-------
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@ -56,6 +56,7 @@ struct _faulthandler_runtime_state {
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#ifdef MS_WINDOWS
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void *exc_handler;
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#endif
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int c_stack;
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} fatal_error;
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struct {
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@ -99,6 +99,9 @@ extern int _PyTraceBack_Print(
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extern int _Py_WriteIndentedMargin(int, const char*, PyObject *);
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extern int _Py_WriteIndent(int, PyObject *);
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// Export for the faulthandler module
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PyAPI_FUNC(void) _Py_DumpStack(int fd);
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#ifdef __cplusplus
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}
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#endif
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@ -55,6 +55,13 @@ def temporary_filename():
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finally:
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os_helper.unlink(filename)
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ADDRESS_EXPR = "0x[0-9a-f]+"
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C_STACK_REGEX = [
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r"Current thread's C stack trace \(most recent call first\):",
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fr'( Binary file ".+"(, at .*(\+|-){ADDRESS_EXPR})? \[{ADDRESS_EXPR}\])|(<.+>)'
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]
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class FaultHandlerTests(unittest.TestCase):
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def get_output(self, code, filename=None, fd=None):
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@ -103,6 +110,7 @@ class FaultHandlerTests(unittest.TestCase):
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fd=None, know_current_thread=True,
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py_fatal_error=False,
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garbage_collecting=False,
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c_stack=True,
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function='<module>'):
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"""
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Check that the fault handler for fatal errors is enabled and check the
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@ -134,6 +142,8 @@ class FaultHandlerTests(unittest.TestCase):
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if garbage_collecting and not all_threads_disabled:
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regex.append(' Garbage-collecting')
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regex.append(fr' File "<string>", line {lineno} in {function}')
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if c_stack:
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regex.extend(C_STACK_REGEX)
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regex = '\n'.join(regex)
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if other_regex:
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@ -950,5 +960,35 @@ class FaultHandlerTests(unittest.TestCase):
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_, exitcode = self.get_output(code)
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self.assertEqual(exitcode, 0)
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def check_c_stack(self, output):
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starting_line = output.pop(0)
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self.assertRegex(starting_line, C_STACK_REGEX[0])
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self.assertGreater(len(output), 0)
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for line in output:
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with self.subTest(line=line):
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if line != '': # Ignore trailing or leading newlines
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self.assertRegex(line, C_STACK_REGEX[1])
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def test_dump_c_stack(self):
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code = dedent("""
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import faulthandler
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faulthandler.dump_c_stack()
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""")
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output, exitcode = self.get_output(code)
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self.assertEqual(exitcode, 0)
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self.check_c_stack(output)
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def test_dump_c_stack_file(self):
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import tempfile
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with tempfile.TemporaryFile("w+") as tmp:
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faulthandler.dump_c_stack(file=tmp)
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tmp.flush() # Just in case
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tmp.seek(0)
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self.check_c_stack(tmp.read().split("\n"))
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if __name__ == "__main__":
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unittest.main()
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@ -5760,7 +5760,7 @@ class TestSignatureDefinitions(unittest.TestCase):
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def test_faulthandler_module_has_signatures(self):
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import faulthandler
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unsupported_signature = {'dump_traceback', 'dump_traceback_later', 'enable'}
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unsupported_signature = {'dump_traceback', 'dump_traceback_later', 'enable', 'dump_c_stack'}
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unsupported_signature |= {name for name in ['register']
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if hasattr(faulthandler, name)}
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self._test_module_has_signatures(faulthandler, unsupported_signature=unsupported_signature)
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@ -0,0 +1,3 @@
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Add support for printing the C stack trace on systems that support it via
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:func:`faulthandler.dump_c_stack` or via the *c_stack* argument in
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:func:`faulthandler.enable`.
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@ -9,10 +9,10 @@
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#include "pycore_sysmodule.h" // _PySys_GetRequiredAttr()
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#include "pycore_time.h" // _PyTime_FromSecondsObject()
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#include "pycore_traceback.h" // _Py_DumpTracebackThreads
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#ifdef HAVE_UNISTD_H
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# include <unistd.h> // _exit()
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#endif
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#include <signal.h> // sigaction()
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#include <stdlib.h> // abort()
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#if defined(HAVE_PTHREAD_SIGMASK) && !defined(HAVE_BROKEN_PTHREAD_SIGMASK) && defined(HAVE_PTHREAD_H)
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@ -210,6 +210,25 @@ faulthandler_dump_traceback(int fd, int all_threads,
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reentrant = 0;
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}
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static void
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faulthandler_dump_c_stack(int fd)
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{
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static volatile int reentrant = 0;
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if (reentrant) {
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return;
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}
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reentrant = 1;
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if (fatal_error.c_stack) {
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PUTS(fd, "\n");
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_Py_DumpStack(fd);
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}
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reentrant = 0;
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}
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static PyObject*
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faulthandler_dump_traceback_py(PyObject *self,
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PyObject *args, PyObject *kwargs)
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@ -260,6 +279,33 @@ faulthandler_dump_traceback_py(PyObject *self,
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Py_RETURN_NONE;
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}
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static PyObject *
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faulthandler_dump_c_stack_py(PyObject *self,
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PyObject *args, PyObject *kwargs)
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{
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static char *kwlist[] = {"file", NULL};
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PyObject *file = NULL;
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if (!PyArg_ParseTupleAndKeywords(args, kwargs,
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"|O:dump_c_stack", kwlist,
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&file)) {
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return NULL;
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}
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int fd = faulthandler_get_fileno(&file);
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if (fd < 0) {
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return NULL;
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}
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_Py_DumpStack(fd);
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if (PyErr_CheckSignals()) {
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return NULL;
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}
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Py_RETURN_NONE;
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}
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static void
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faulthandler_disable_fatal_handler(fault_handler_t *handler)
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{
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@ -350,6 +396,7 @@ faulthandler_fatal_error(int signum)
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faulthandler_dump_traceback(fd, deduce_all_threads(),
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fatal_error.interp);
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faulthandler_dump_c_stack(fd);
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_Py_DumpExtensionModules(fd, fatal_error.interp);
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@ -425,6 +472,7 @@ faulthandler_exc_handler(struct _EXCEPTION_POINTERS *exc_info)
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faulthandler_dump_traceback(fd, deduce_all_threads(),
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fatal_error.interp);
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faulthandler_dump_c_stack(fd);
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/* call the next exception handler */
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return EXCEPTION_CONTINUE_SEARCH;
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@ -519,14 +567,15 @@ faulthandler_enable(void)
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static PyObject*
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faulthandler_py_enable(PyObject *self, PyObject *args, PyObject *kwargs)
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{
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static char *kwlist[] = {"file", "all_threads", NULL};
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static char *kwlist[] = {"file", "all_threads", "c_stack", NULL};
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PyObject *file = NULL;
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int all_threads = 1;
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int fd;
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int c_stack = 1;
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PyThreadState *tstate;
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if (!PyArg_ParseTupleAndKeywords(args, kwargs,
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"|Op:enable", kwlist, &file, &all_threads))
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"|Opp:enable", kwlist, &file, &all_threads, &c_stack))
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return NULL;
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fd = faulthandler_get_fileno(&file);
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@ -543,6 +592,7 @@ faulthandler_py_enable(PyObject *self, PyObject *args, PyObject *kwargs)
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fatal_error.fd = fd;
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fatal_error.all_threads = all_threads;
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fatal_error.interp = PyThreadState_GetInterpreter(tstate);
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fatal_error.c_stack = c_stack;
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if (faulthandler_enable() < 0) {
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return NULL;
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@ -1238,6 +1288,10 @@ static PyMethodDef module_methods[] = {
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PyDoc_STR("dump_traceback($module, /, file=sys.stderr, all_threads=True)\n--\n\n"
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"Dump the traceback of the current thread, or of all threads "
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"if all_threads is True, into file.")},
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{"dump_c_stack",
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_PyCFunction_CAST(faulthandler_dump_c_stack_py), METH_VARARGS|METH_KEYWORDS,
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PyDoc_STR("dump_c_stack($module, /, file=sys.stderr)\n--\n\n"
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"Dump the C stack of the current thread.")},
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{"dump_traceback_later",
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_PyCFunction_CAST(faulthandler_dump_traceback_later), METH_VARARGS|METH_KEYWORDS,
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PyDoc_STR("dump_traceback_later($module, /, timeout, repeat=False, file=sys.stderr, exit=False)\n--\n\n"
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@ -18,7 +18,25 @@
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#ifdef HAVE_UNISTD_H
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# include <unistd.h> // lseek()
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#endif
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#if defined(HAVE_EXECINFO_H) && defined(HAVE_DLFCN_H) && defined(HAVE_LINK_H)
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# include <execinfo.h> // backtrace(), backtrace_symbols()
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# include <dlfcn.h> // dladdr1()
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# include <link.h> // struct DL_info
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# if defined(HAVE_BACKTRACE) && defined(HAVE_BACKTRACE_SYMBOLS) && defined(HAVE_DLADDR1)
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# define CAN_C_BACKTRACE
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# endif
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#endif
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#if defined(__STDC_NO_VLA__) && (__STDC_NO_VLA__ == 1)
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/* Use alloca() for VLAs. */
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# define VLA(type, name, size) type *name = alloca(size)
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#elif !defined(__STDC_NO_VLA__) || (__STDC_NO_VLA__ == 0)
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/* Use actual C VLAs.*/
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# define VLA(type, name, size) type name[size]
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#elif defined(CAN_C_BACKTRACE)
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/* VLAs are not possible. Disable C stack trace functions. */
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# undef CAN_C_BACKTRACE
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#endif
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#define OFF(x) offsetof(PyTracebackObject, x)
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#define PUTS(fd, str) (void)_Py_write_noraise(fd, str, strlen(str))
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@ -1166,3 +1184,93 @@ _Py_DumpTracebackThreads(int fd, PyInterpreterState *interp,
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return NULL;
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}
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#ifdef CAN_C_BACKTRACE
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/* Based on glibc's implementation of backtrace_symbols(), but only uses stack memory. */
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void
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_Py_backtrace_symbols_fd(int fd, void *const *array, Py_ssize_t size)
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{
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VLA(Dl_info, info, size);
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VLA(int, status, size);
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/* Fill in the information we can get from dladdr() */
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for (Py_ssize_t i = 0; i < size; ++i) {
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struct link_map *map;
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status[i] = dladdr1(array[i], &info[i], (void **)&map, RTLD_DL_LINKMAP);
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if (status[i] != 0
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&& info[i].dli_fname != NULL
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&& info[i].dli_fname[0] != '\0') {
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/* The load bias is more useful to the user than the load
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address. The use of these addresses is to calculate an
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address in the ELF file, so its prelinked bias is not
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something we want to subtract out */
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info[i].dli_fbase = (void *) map->l_addr;
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}
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}
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for (Py_ssize_t i = 0; i < size; ++i) {
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if (status[i] == 0
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|| info[i].dli_fname == NULL
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|| info[i].dli_fname[0] == '\0'
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) {
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dprintf(fd, " Binary file '<unknown>' [%p]\n", array[i]);
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continue;
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}
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if (info[i].dli_sname == NULL) {
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/* We found no symbol name to use, so describe it as
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relative to the file. */
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info[i].dli_saddr = info[i].dli_fbase;
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}
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if (info[i].dli_sname == NULL
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&& info[i].dli_saddr == 0) {
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dprintf(fd, " Binary file \"%s\" [%p]\n",
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info[i].dli_fname,
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array[i]);
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}
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else {
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char sign;
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ptrdiff_t offset;
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if (array[i] >= (void *) info[i].dli_saddr) {
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sign = '+';
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offset = array[i] - info[i].dli_saddr;
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}
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else {
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sign = '-';
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offset = info[i].dli_saddr - array[i];
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}
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const char *symbol_name = info[i].dli_sname != NULL ? info[i].dli_sname : "";
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dprintf(fd, " Binary file \"%s\", at %s%c%#tx [%p]\n",
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info[i].dli_fname,
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symbol_name,
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sign, offset, array[i]);
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}
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}
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}
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void
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_Py_DumpStack(int fd)
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{
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#define BACKTRACE_SIZE 32
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PUTS(fd, "Current thread's C stack trace (most recent call first):\n");
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VLA(void *, callstack, BACKTRACE_SIZE);
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int frames = backtrace(callstack, BACKTRACE_SIZE);
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if (frames == 0) {
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// Some systems won't return anything for the stack trace
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PUTS(fd, " <system returned no stack trace>\n");
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return;
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}
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_Py_backtrace_symbols_fd(fd, callstack, frames);
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if (frames == BACKTRACE_SIZE) {
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PUTS(fd, " <truncated rest of calls>\n");
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}
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#undef BACKTRACE_SIZE
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}
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#else
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void
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_Py_DumpStack(int fd)
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{
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PUTS(fd, "Current thread's C stack trace (most recent call first):\n");
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PUTS(fd, " <cannot get C stack on this system>\n");
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}
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#endif
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@ -166,6 +166,7 @@ Python/sysmodule.c - _preinit_xoptions -
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# thread-safety
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# XXX need race protection?
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Modules/faulthandler.c faulthandler_dump_traceback reentrant -
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Modules/faulthandler.c faulthandler_dump_c_stack reentrant -
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Python/pylifecycle.c _Py_FatalErrorFormat reentrant -
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||||
Python/pylifecycle.c fatal_error reentrant -
|
||||
|
||||
|
|
|
|||
|
Can't render this file because it has a wrong number of fields in line 4.
|
161
configure
generated
vendored
161
configure
generated
vendored
|
|
@ -2313,6 +2313,70 @@ fi
|
|||
|
||||
} # ac_fn_c_try_run
|
||||
|
||||
# ac_fn_c_check_func LINENO FUNC VAR
|
||||
# ----------------------------------
|
||||
# Tests whether FUNC exists, setting the cache variable VAR accordingly
|
||||
ac_fn_c_check_func ()
|
||||
{
|
||||
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
|
||||
printf %s "checking for $2... " >&6; }
|
||||
if eval test \${$3+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
|
||||
For example, HP-UX 11i <limits.h> declares gettimeofday. */
|
||||
#define $2 innocuous_$2
|
||||
|
||||
/* System header to define __stub macros and hopefully few prototypes,
|
||||
which can conflict with char $2 (void); below. */
|
||||
|
||||
#include <limits.h>
|
||||
#undef $2
|
||||
|
||||
/* Override any GCC internal prototype to avoid an error.
|
||||
Use char because int might match the return type of a GCC
|
||||
builtin and then its argument prototype would still apply. */
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
#endif
|
||||
char $2 (void);
|
||||
/* The GNU C library defines this for functions which it implements
|
||||
to always fail with ENOSYS. Some functions are actually named
|
||||
something starting with __ and the normal name is an alias. */
|
||||
#if defined __stub_$2 || defined __stub___$2
|
||||
choke me
|
||||
#endif
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
return $2 ();
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"
|
||||
then :
|
||||
eval "$3=yes"
|
||||
else case e in #(
|
||||
e) eval "$3=no" ;;
|
||||
esac
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext conftest.beam \
|
||||
conftest$ac_exeext conftest.$ac_ext ;;
|
||||
esac
|
||||
fi
|
||||
eval ac_res=\$$3
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
|
||||
printf "%s\n" "$ac_res" >&6; }
|
||||
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
|
||||
|
||||
} # ac_fn_c_check_func
|
||||
|
||||
# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
|
||||
# -------------------------------------------
|
||||
# Tests whether TYPE exists after having included INCLUDES, setting cache
|
||||
|
|
@ -2567,70 +2631,6 @@ rm -f conftest.val
|
|||
|
||||
} # ac_fn_c_compute_int
|
||||
|
||||
# ac_fn_c_check_func LINENO FUNC VAR
|
||||
# ----------------------------------
|
||||
# Tests whether FUNC exists, setting the cache variable VAR accordingly
|
||||
ac_fn_c_check_func ()
|
||||
{
|
||||
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
|
||||
printf %s "checking for $2... " >&6; }
|
||||
if eval test \${$3+y}
|
||||
then :
|
||||
printf %s "(cached) " >&6
|
||||
else case e in #(
|
||||
e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
|
||||
For example, HP-UX 11i <limits.h> declares gettimeofday. */
|
||||
#define $2 innocuous_$2
|
||||
|
||||
/* System header to define __stub macros and hopefully few prototypes,
|
||||
which can conflict with char $2 (void); below. */
|
||||
|
||||
#include <limits.h>
|
||||
#undef $2
|
||||
|
||||
/* Override any GCC internal prototype to avoid an error.
|
||||
Use char because int might match the return type of a GCC
|
||||
builtin and then its argument prototype would still apply. */
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
#endif
|
||||
char $2 (void);
|
||||
/* The GNU C library defines this for functions which it implements
|
||||
to always fail with ENOSYS. Some functions are actually named
|
||||
something starting with __ and the normal name is an alias. */
|
||||
#if defined __stub_$2 || defined __stub___$2
|
||||
choke me
|
||||
#endif
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
return $2 ();
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"
|
||||
then :
|
||||
eval "$3=yes"
|
||||
else case e in #(
|
||||
e) eval "$3=no" ;;
|
||||
esac
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext conftest.beam \
|
||||
conftest$ac_exeext conftest.$ac_ext ;;
|
||||
esac
|
||||
fi
|
||||
eval ac_res=\$$3
|
||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
|
||||
printf "%s\n" "$ac_res" >&6; }
|
||||
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
|
||||
|
||||
} # ac_fn_c_check_func
|
||||
|
||||
# ac_fn_check_decl LINENO SYMBOL VAR INCLUDES EXTRA-OPTIONS FLAG-VAR
|
||||
# ------------------------------------------------------------------
|
||||
# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
|
||||
|
|
@ -11877,6 +11877,39 @@ fi
|
|||
fi
|
||||
|
||||
|
||||
# for faulthandler
|
||||
for ac_header in execinfo.h link.h dlfcn.h
|
||||
do :
|
||||
as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
|
||||
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
|
||||
if eval test \"x\$"$as_ac_Header"\" = x"yes"
|
||||
then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
|
||||
_ACEOF
|
||||
ac_fn_c_check_func "$LINENO" "backtrace" "ac_cv_func_backtrace"
|
||||
if test "x$ac_cv_func_backtrace" = xyes
|
||||
then :
|
||||
printf "%s\n" "#define HAVE_BACKTRACE 1" >>confdefs.h
|
||||
|
||||
fi
|
||||
ac_fn_c_check_func "$LINENO" "backtrace_symbols" "ac_cv_func_backtrace_symbols"
|
||||
if test "x$ac_cv_func_backtrace_symbols" = xyes
|
||||
then :
|
||||
printf "%s\n" "#define HAVE_BACKTRACE_SYMBOLS 1" >>confdefs.h
|
||||
|
||||
fi
|
||||
ac_fn_c_check_func "$LINENO" "dladdr1" "ac_cv_func_dladdr1"
|
||||
if test "x$ac_cv_func_dladdr1" = xyes
|
||||
then :
|
||||
printf "%s\n" "#define HAVE_DLADDR1 1" >>confdefs.h
|
||||
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
# bluetooth/bluetooth.h has been known to not compile with -std=c99.
|
||||
# http://permalink.gmane.org/gmane.linux.bluez.kernel/22294
|
||||
SAVE_CFLAGS=$CFLAGS
|
||||
|
|
|
|||
|
|
@ -2985,6 +2985,10 @@ AC_CHECK_HEADERS([ \
|
|||
AC_HEADER_DIRENT
|
||||
AC_HEADER_MAJOR
|
||||
|
||||
# for faulthandler
|
||||
AC_CHECK_HEADERS([execinfo.h link.h dlfcn.h],
|
||||
[AC_CHECK_FUNCS(backtrace backtrace_symbols dladdr1)])
|
||||
|
||||
# bluetooth/bluetooth.h has been known to not compile with -std=c99.
|
||||
# http://permalink.gmane.org/gmane.linux.bluez.kernel/22294
|
||||
SAVE_CFLAGS=$CFLAGS
|
||||
|
|
|
|||
|
|
@ -89,6 +89,12 @@
|
|||
/* Define to 1 if you have the 'atanh' function. */
|
||||
#undef HAVE_ATANH
|
||||
|
||||
/* Define to 1 if you have the 'backtrace' function. */
|
||||
#undef HAVE_BACKTRACE
|
||||
|
||||
/* Define to 1 if you have the 'backtrace_symbols' function. */
|
||||
#undef HAVE_BACKTRACE_SYMBOLS
|
||||
|
||||
/* Define if you have the 'bind' function. */
|
||||
#undef HAVE_BIND
|
||||
|
||||
|
|
@ -289,6 +295,9 @@
|
|||
/* Define to 1 if you have the 'dladdr' function. */
|
||||
#undef HAVE_DLADDR
|
||||
|
||||
/* Define to 1 if you have the 'dladdr1' function. */
|
||||
#undef HAVE_DLADDR1
|
||||
|
||||
/* Define to 1 if you have the <dlfcn.h> header file. */
|
||||
#undef HAVE_DLFCN_H
|
||||
|
||||
|
|
@ -334,6 +343,9 @@
|
|||
/* Define if you have the 'eventfd' function. */
|
||||
#undef HAVE_EVENTFD
|
||||
|
||||
/* Define to 1 if you have the <execinfo.h> header file. */
|
||||
#undef HAVE_EXECINFO_H
|
||||
|
||||
/* Define to 1 if you have the 'execv' function. */
|
||||
#undef HAVE_EXECV
|
||||
|
||||
|
|
@ -705,6 +717,9 @@
|
|||
/* Define to 1 if you have the 'linkat' function. */
|
||||
#undef HAVE_LINKAT
|
||||
|
||||
/* Define to 1 if you have the <link.h> header file. */
|
||||
#undef HAVE_LINK_H
|
||||
|
||||
/* Define to 1 if you have the <linux/auxvec.h> header file. */
|
||||
#undef HAVE_LINUX_AUXVEC_H
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue