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-rw-r--r--kernel/printk.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index 4da2377131b0..449364f07a1e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -671,6 +671,15 @@ void log_buf_kexec_setup(void)
VMCOREINFO_SYMBOL(log_buf_len);
VMCOREINFO_SYMBOL(log_first_idx);
VMCOREINFO_SYMBOL(log_next_idx);
+ /*
+ * Export struct log size and field offsets. User space tools can
+ * parse it and detect any changes to structure down the line.
+ */
+ VMCOREINFO_STRUCT_SIZE(log);
+ VMCOREINFO_OFFSET(log, ts_nsec);
+ VMCOREINFO_OFFSET(log, len);
+ VMCOREINFO_OFFSET(log, text_len);
+ VMCOREINFO_OFFSET(log, dict_len);
}
#endif