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| author |   Daniel Thompson <daniel.thompson@linaro.org> | 2014-09-11 10:37:10 +0100 |
|---|---|---|
| committer |   Jason Wessel <jason.wessel@windriver.com> | 2015-02-19 12:39:03 -0600 |
| commit | fb6daa7520f9d17a97e84a3d5a947819e0313f28 (patch) | |
| tree | 3495ac88045d5a21c72a2a43517980afa47774ca /kernel/debug/kdb/kdb_private.h | |
| parent | kdb: Fix a prompt management bug when using | grep (diff) | |
| download | linux-dev-fb6daa7520f9d17a97e84a3d5a947819e0313f28.tar.xz linux-dev-fb6daa7520f9d17a97e84a3d5a947819e0313f28.zip | |
kdb: Provide forward search at more prompt
Currently kdb allows the output of comamnds to be filtered using the
| grep feature. This is useful but does not permit the output emitted
shortly after a string match to be examined without wading through the
entire unfiltered output of the command. Such a feature is particularly
useful to navigate function traces because these traces often have a
useful trigger string *before* the point of interest.
This patch reuses the existing filtering logic to introduce a simple
forward search to kdb that can be triggered from the more prompt.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to '')
| -rw-r--r-- | kernel/debug/kdb/kdb_private.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h index eaacd1693954..da93894db7ba 100644 --- a/kernel/debug/kdb/kdb_private.h +++ b/kernel/debug/kdb/kdb_private.h @@ -196,7 +196,9 @@ extern int kdb_main_loop(kdb_reason_t, kdb_reason_t, /* Miscellaneous functions and data areas */ extern int kdb_grepping_flag; +#define KDB_GREPPING_FLAG_SEARCH 0x8000 extern char kdb_grep_string[]; +#define KDB_GREP_STRLEN 256 extern int kdb_grep_leading; extern int kdb_grep_trailing; extern char *kdb_cmds[]; |