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| author | Akinobu Mita <mita@miraclelinux.com> | 2006-01-11 12:17:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-11 18:42:10 -0800 |
| commit | 8428cfe893c1f13eb22cd879669f12b65900738f (patch) | |
| tree | aa6de3530fd1387c3929d2f10015749c7bad10d0 /Documentation | |
| parent | beb25c6e27b21d0c0f7b9c2769fa334f1f9a8c2c (diff) | |
| download | lwn-8428cfe893c1f13eb22cd879669f12b65900738f.tar.gz lwn-8428cfe893c1f13eb22cd879669f12b65900738f.zip | |
[PATCH] kdump: add dmesg gdbmacro into document
Add gdb macro which print the kernel ring buffer into kdump docs
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kdump/gdbmacros.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/kdump/gdbmacros.txt b/Documentation/kdump/gdbmacros.txt index bc1b9eb92ae1..dcf5580380ab 100644 --- a/Documentation/kdump/gdbmacros.txt +++ b/Documentation/kdump/gdbmacros.txt @@ -177,3 +177,25 @@ document trapinfo 'trapinfo <pid>' will tell you by which trap & possibly addresthe kernel paniced. end + + +define dmesg + set $i = 0 + set $end_idx = (log_end - 1) & (log_buf_len - 1) + + while ($i < logged_chars) + set $idx = (log_end - 1 - logged_chars + $i) & (log_buf_len - 1) + + if ($idx + 100 <= $end_idx) || \ + ($end_idx <= $idx && $idx + 100 < log_buf_len) + printf "%.100s", &log_buf[$idx] + set $i = $i + 100 + else + printf "%c", log_buf[$idx] + set $i = $i + 1 + end + end +end +document dmesg + print the kernel ring buffer +end |