usage: /usr/bin/pstack <[ exe ] <PID | core> >+

print a stack trace of PID or core. If specified, assume image was created from
 execing `exe`, otherwise, the executable is inferred from the process or core

available options:
    [-g|--debug-dir <directory>]
        extra location to find debug files for binaries and shared libraries
    [--exe-dir <directory>]
        extra location to find executables and shared libraries
    [--build-id-exepath <directory>]
        extra location to find executable files from their build-ids
    [--build-id-debugpath <directory>]
        extra location to find debug files from their build-ids
    [--no-buildid]
        don't look up files by build id
    [-b|--constant <delay>]
        repeat pstack, with `delay` seconds between each iteration (can be non-integer)
    [-d|--elf-dump <ELF file>]
        dump details of an ELF image in JSON and exit
    [-D|--dwarf-dump <ELF file>]
        dump details of DWARF information in an ELF image in JSON and exit
    [-r|--depth <depth>]
        max depth when printing python structures
    [-M|--max-frames <max frames>]
        maximum number of stack frames to print for a thread
    [--max-string <max string length>]
        maximum length of strings printed from remote
    [-h|--help]
        generate this help message
    [-a|--args]
        attempt to show the value of arguments to functions
    [-j|--json]
        use JSON output rather than plaintext
    [-s|--no-src]
        don't include source info
    [-v|--verbose]
        more debugging data. Can be repeated
    [-t|--no-threaddb]
        don't use the thread_db functions to enumerate pthreads (just uses LWPs)
    [-A|--all]
        show both python and DWARF (C/C++/go/rust) stack traces
    [-n|--no-ext-debug]
        don't load external debugging information when processing
    [-V|--version]
        dump version and exit
    [-m|--python-modules]
        print contents of all python modules when tracing
    [-p|--python]
        print python stack traces
    [-l|--locals]
        print local variables (just python for now)
    [-e|--executable <executable>]
        executable to use by default
    [-x|--command <command line>]
        execute command line as subprocess, trace when it receives a signal
    [-Y|--no-die-names]
        do not use DIE names for functions
    [--freeres]
        free all memory at exit (useful for valgrind/heapcheck)
    [--maxthreads <max-threads>]
        maximum threads to display
    [--clear-search-paths]
        remove all default search paths for shared libraries and debug info
    [-o|--output <output file>]
        write output to <output file> instead of stdout
    [-R|--debuginfod]
        use debuginfod client
    [--no-local-files]
        don't assume local files match the process's view, and don't open them