The patch titled
Subject: scripts/gdb: add documentation example for radix tree
has been added to the -mm tree. Its filename is
scripts-gdb-add-documentation-example-for-radix-tree.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/scripts-gdb-add-documentation-example-for-radix-tree.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/scripts-gdb-add-documentation-example-for-radix-tree.patch
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------------------------------------------------------
From: Kieran Bingham <kieran.bingham@xxxxxxxxxx>
Subject: scripts/gdb: add documentation example for radix tree
Provide a worked example for utilising the lx_radix_tree_lookup function
Link: http://lkml.kernel.org/r/e786008ac5aec4b84198812805b326d718bdeb4b.1462865983.git.jan.kiszka@xxxxxxxxxxx
Signed-off-by: Kieran Bingham <kieran.bingham@xxxxxxxxxx>
Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/gdb-kernel-debugging.txt | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff -puN Documentation/gdb-kernel-debugging.txt~scripts-gdb-add-documentation-example-for-radix-tree Documentation/gdb-kernel-debugging.txt
--- a/Documentation/gdb-kernel-debugging.txt~scripts-gdb-add-documentation-example-for-radix-tree
+++ a/Documentation/gdb-kernel-debugging.txt
@@ -139,6 +139,27 @@ Examples of using the Linux-provided gdb
start_comm = "swapper/2\000\000\000\000\000\000"
}
+ o Dig into a radix tree data structure, such as the IRQ descriptors:
+ (gdb) print (struct irq_desc)$lx_radix_tree_lookup(irq_desc_tree, 18)
+ $6 = {
+ irq_common_data = {
+ state_use_accessors = 67584,
+ handler_data = 0x0 <__vectors_start>,
+ msi_desc = 0x0 <__vectors_start>,
+ affinity = {{
+ bits = {65535}
+ }}
+ },
+ irq_data = {
+ mask = 0,
+ irq = 18,
+ hwirq = 27,
+ common = 0xee803d80,
+ chip = 0xc0eb0854 <gic_data>,
+ domain = 0xee808000,
+ parent_data = 0x0 <__vectors_start>,
+ chip_data = 0xc0eb0854 <gic_data>
+ } <... trimmed ...>
List of commands and functions
------------------------------
_
Patches currently in -mm which might be from kieran.bingham@xxxxxxxxxx are
scripts-gdb-provide-linux-constants.patch
scripts-gdb-provide-kernel-list-item-generators.patch
scripts-gdb-convert-modules-usage-to-lists-functions.patch
scripts-gdb-provide-exception-catching-parser.patch
scripts-gdb-support-config_modules-gracefully.patch
scripts-gdb-provide-a-dentry_name-vfs-path-helper.patch
scripts-gdb-add-io-resource-readers.patch
scripts-gdb-add-mount-point-list-command.patch
scripts-gdb-add-cpu-iterators.patch
scripts-gdb-add-a-radix-tree-parser.patch
scripts-gdb-add-documentation-example-for-radix-tree.patch
scripts-gdb-add-lx_thread_info_by_pid-helper.patch
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