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![Leonard Crestez](/assets/img/avatar_default.png)
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 <leonard.crestez@nxp.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Cc: Kieran Bingham <kbingham@kernel.org> Cc: Jan Kiszka <jan.kiszka@siemens.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
39 lines
864 B
Python
39 lines
864 B
Python
#
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# gdb helper commands and functions for Linux kernel debugging
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#
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# loader module
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#
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# Copyright (c) Siemens AG, 2012, 2013
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#
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# Authors:
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# Jan Kiszka <jan.kiszka@siemens.com>
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#
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# This work is licensed under the terms of the GNU GPL version 2.
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#
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import os
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sys.path.insert(0, os.path.dirname(__file__) + "/scripts/gdb")
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try:
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gdb.parse_and_eval("0")
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gdb.execute("", to_string=True)
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except:
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gdb.write("NOTE: gdb 7.2 or later required for Linux helper scripts to "
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"work.\n")
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else:
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import linux.utils
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import linux.symbols
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import linux.modules
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import linux.dmesg
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import linux.tasks
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import linux.config
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import linux.cpus
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import linux.lists
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import linux.rbtree
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import linux.proc
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import linux.constants
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import linux.timerlist
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import linux.clk
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import linux.genpd
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import linux.device
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