diff options
| author | Leonard Crestez <[email protected]> | 2019-07-16 16:30:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-07-16 19:23:24 -0700 |
| commit | 778c1f5ccbd95722cf84d2233c6acbf4d01a3ec7 (patch) | |
| tree | 7a9c17a17417f89dcb0fd9a993312b874a2ddea0 /scripts/gdb/vmlinux-gdb.py | |
| parent | 8207d4a88e1ef4ab54f05f2f18edd444a5099099 (diff) | |
scripts/gdb: add helpers to find and list devices
Add helper commands and functions for finding pointers to struct device
by enumerating linux device bus/class infrastructure. This can be used
to fetch subsystem and driver-specific structs:
(gdb) p *$container_of($lx_device_find_by_class_name("net", "eth0"), "struct net_device", "dev")
(gdb) p *$container_of($lx_device_find_by_bus_name("i2c", "0-004b"), "struct i2c_client", "dev")
(gdb) p *(struct imx_port*)$lx_device_find_by_class_name("tty", "ttymxc1")->parent->driver_data
Several generic "lx-device-list" functions are included to enumerate
devices by bus and class:
(gdb) lx-device-list-bus usb
(gdb) lx-device-list-class
(gdb) lx-device-list-tree &platform_bus
Similar information is available in /sys but pointer values are
deliberately hidden.
Link: http://lkml.kernel.org/r/c948628041311cbf1b9b4cff3dda7d2073cb3eaa.1561492937.git.leonard.crestez@nxp.com
Signed-off-by: Leonard Crestez <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Cc: Kieran Bingham <[email protected]>
Cc: Jan Kiszka <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'scripts/gdb/vmlinux-gdb.py')
| -rw-r--r-- | scripts/gdb/vmlinux-gdb.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py index a504f511e752..4136dc2c59df 100644 --- a/scripts/gdb/vmlinux-gdb.py +++ b/scripts/gdb/vmlinux-gdb.py @@ -36,3 +36,4 @@ else: import linux.timerlist import linux.clk import linux.genpd + import linux.device |