linux/drivers/Kconfig
Linus Torvalds aa1a8ce533 New tracing features:
- The ring buffer is no longer disabled when reading the trace file.
    The trace_pipe file was made to be used for live tracing and reading
    as it acted like the normal producer/consumer. As the trace file
    would not consume the data, the easy way of handling it was to just
    disable writes to the ring buffer. This came to a surprise to the
    BPF folks who complained about lost events due to reading.
    This is no longer an issue. If someone wants to keep the old disabling
    there's a new option "pause-on-trace" that can be set.
 
  - New set_ftrace_notrace_pid file. PIDs in this file will not be traced
    by the function tracer. Similar to set_ftrace_pid, which makes the
    function tracer only trace those tasks with PIDs in the file, the
    set_ftrace_notrace_pid does the reverse.
 
  - New set_event_notrace_pid file. PIDs in this file will cause events
    not to be traced if triggered by a task with a matching PID.
    Similar to the set_event_pid file but will not be traced.
    Note, sched_waking and sched_switch events may still be trace if
    one of the tasks referenced by those events contains a PID that
    is allowed to be traced.
 
 Tracing related features:
 
  - New bootconfig option, that is attached to the initrd file.
    If bootconfig is on the command line, then the initrd file
    is searched looking for a bootconfig appended at the end.
 
  - New GPU tracepoint infrastructure to help the gfx drivers to get
    off debugfs (acked by Greg Kroah-Hartman)
 
 Other minor updates and fixes.
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Merge tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "New tracing features:

   - The ring buffer is no longer disabled when reading the trace file.

     The trace_pipe file was made to be used for live tracing and
     reading as it acted like the normal producer/consumer. As the trace
     file would not consume the data, the easy way of handling it was to
     just disable writes to the ring buffer.

     This came to a surprise to the BPF folks who complained about lost
     events due to reading. This is no longer an issue. If someone wants
     to keep the old disabling there's a new option "pause-on-trace"
     that can be set.

   - New set_ftrace_notrace_pid file. PIDs in this file will not be
     traced by the function tracer.

     Similar to set_ftrace_pid, which makes the function tracer only
     trace those tasks with PIDs in the file, the set_ftrace_notrace_pid
     does the reverse.

   - New set_event_notrace_pid file. PIDs in this file will cause events
     not to be traced if triggered by a task with a matching PID.

     Similar to the set_event_pid file but will not be traced. Note,
     sched_waking and sched_switch events may still be traced if one of
     the tasks referenced by those events contains a PID that is allowed
     to be traced.

  Tracing related features:

   - New bootconfig option, that is attached to the initrd file.

     If bootconfig is on the command line, then the initrd file is
     searched looking for a bootconfig appended at the end.

   - New GPU tracepoint infrastructure to help the gfx drivers to get
     off debugfs (acked by Greg Kroah-Hartman)

  And other minor updates and fixes"

* tag 'trace-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (27 commits)
  tracing: Do not allocate buffer in trace_find_next_entry() in atomic
  tracing: Add documentation on set_ftrace_notrace_pid and set_event_notrace_pid
  selftests/ftrace: Add test to test new set_event_notrace_pid file
  selftests/ftrace: Add test to test new set_ftrace_notrace_pid file
  tracing: Create set_event_notrace_pid to not trace tasks
  ftrace: Create set_ftrace_notrace_pid to not trace tasks
  ftrace: Make function trace pid filtering a bit more exact
  ftrace/kprobe: Show the maxactive number on kprobe_events
  tracing: Have the document reflect that the trace file keeps tracing enabled
  ring-buffer/tracing: Have iterator acknowledge dropped events
  tracing: Do not disable tracing when reading the trace file
  ring-buffer: Do not disable recording when there is an iterator
  ring-buffer: Make resize disable per cpu buffer instead of total buffer
  ring-buffer: Optimize rb_iter_head_event()
  ring-buffer: Do not die if rb_iter_peek() fails more than thrice
  ring-buffer: Have rb_iter_head_event() handle concurrent writer
  ring-buffer: Add page_stamp to iterator for synchronization
  ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()
  ring-buffer: Have ring_buffer_empty() not depend on tracing stopped
  tracing: Save off entry when peeking at next entry
  ...
2020-04-05 10:36:18 -07:00

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# SPDX-License-Identifier: GPL-2.0
menu "Device Drivers"
# Keep I/O buses first
source "drivers/amba/Kconfig"
source "drivers/eisa/Kconfig"
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
source "drivers/rapidio/Kconfig"
source "drivers/base/Kconfig"
source "drivers/bus/Kconfig"
source "drivers/connector/Kconfig"
source "drivers/gnss/Kconfig"
source "drivers/mtd/Kconfig"
source "drivers/of/Kconfig"
source "drivers/parport/Kconfig"
source "drivers/pnp/Kconfig"
source "drivers/block/Kconfig"
source "drivers/nvme/Kconfig"
source "drivers/misc/Kconfig"
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
source "drivers/ata/Kconfig"
source "drivers/md/Kconfig"
source "drivers/target/Kconfig"
source "drivers/message/fusion/Kconfig"
source "drivers/firewire/Kconfig"
source "drivers/macintosh/Kconfig"
source "drivers/net/Kconfig"
source "drivers/isdn/Kconfig"
source "drivers/lightnvm/Kconfig"
# input before char - char/joystick depends on it. As does USB.
source "drivers/input/Kconfig"
source "drivers/char/Kconfig"
source "drivers/i2c/Kconfig"
source "drivers/i3c/Kconfig"
source "drivers/spi/Kconfig"
source "drivers/spmi/Kconfig"
source "drivers/hsi/Kconfig"
source "drivers/pps/Kconfig"
source "drivers/ptp/Kconfig"
source "drivers/pinctrl/Kconfig"
source "drivers/gpio/Kconfig"
source "drivers/w1/Kconfig"
source "drivers/power/Kconfig"
source "drivers/hwmon/Kconfig"
source "drivers/thermal/Kconfig"
source "drivers/watchdog/Kconfig"
source "drivers/ssb/Kconfig"
source "drivers/bcma/Kconfig"
source "drivers/mfd/Kconfig"
source "drivers/regulator/Kconfig"
source "drivers/media/Kconfig"
source "drivers/video/Kconfig"
source "sound/Kconfig"
source "drivers/hid/Kconfig"
source "drivers/usb/Kconfig"
source "drivers/mmc/Kconfig"
source "drivers/memstick/Kconfig"
source "drivers/leds/Kconfig"
source "drivers/accessibility/Kconfig"
source "drivers/infiniband/Kconfig"
source "drivers/edac/Kconfig"
source "drivers/rtc/Kconfig"
source "drivers/dma/Kconfig"
source "drivers/dma-buf/Kconfig"
source "drivers/dca/Kconfig"
source "drivers/auxdisplay/Kconfig"
source "drivers/uio/Kconfig"
source "drivers/vfio/Kconfig"
source "drivers/vlynq/Kconfig"
source "drivers/virt/Kconfig"
source "drivers/virtio/Kconfig"
source "drivers/hv/Kconfig"
source "drivers/xen/Kconfig"
source "drivers/greybus/Kconfig"
source "drivers/staging/Kconfig"
source "drivers/platform/Kconfig"
source "drivers/clk/Kconfig"
source "drivers/hwspinlock/Kconfig"
source "drivers/clocksource/Kconfig"
source "drivers/mailbox/Kconfig"
source "drivers/iommu/Kconfig"
source "drivers/remoteproc/Kconfig"
source "drivers/rpmsg/Kconfig"
source "drivers/soundwire/Kconfig"
source "drivers/soc/Kconfig"
source "drivers/devfreq/Kconfig"
source "drivers/extcon/Kconfig"
source "drivers/memory/Kconfig"
source "drivers/iio/Kconfig"
source "drivers/ntb/Kconfig"
source "drivers/vme/Kconfig"
source "drivers/pwm/Kconfig"
source "drivers/irqchip/Kconfig"
source "drivers/ipack/Kconfig"
source "drivers/reset/Kconfig"
source "drivers/phy/Kconfig"
source "drivers/powercap/Kconfig"
source "drivers/mcb/Kconfig"
source "drivers/perf/Kconfig"
source "drivers/ras/Kconfig"
source "drivers/thunderbolt/Kconfig"
source "drivers/android/Kconfig"
source "drivers/gpu/trace/Kconfig"
source "drivers/nvdimm/Kconfig"
source "drivers/dax/Kconfig"
source "drivers/nvmem/Kconfig"
source "drivers/hwtracing/Kconfig"
source "drivers/fpga/Kconfig"
source "drivers/fsi/Kconfig"
source "drivers/tee/Kconfig"
source "drivers/mux/Kconfig"
source "drivers/opp/Kconfig"
source "drivers/visorbus/Kconfig"
source "drivers/siox/Kconfig"
source "drivers/slimbus/Kconfig"
source "drivers/interconnect/Kconfig"
source "drivers/counter/Kconfig"
source "drivers/most/Kconfig"
endmenu