@@ -74,12 +74,14 @@ respectively. 'x' prefix implies it is unsigned. Traced arguments are shown
in decimal ('s' and 'u') or hexadecimal ('x'). Without type casting, 'x32'
or 'x64' is used depends on the architecture (e.g. x86-32 uses x32, and
x86-64 uses x64).
+
These value types can be an array. To record array data, you can add '[N]'
(where N is a fixed number, less than 64) to the base type.
E.g. 'x16[4]' means an array of x16 (2-bytes hex) with 4 elements.
Note that the array can be applied to memory type fetchargs, you can not
apply it to registers/stack-entries etc. (for example, '$stack1:x8[8]' is
wrong, but '+8($stack):x8[8]' is OK.)
+
String type is a special type, which fetches a "null-terminated" string from
kernel space. This means it will fail and store NULL if the string container
has been paged out. "ustring" type is an alternative of string for user-space.
Add an empty line to force the output to split paragraphs like it is splitin the REST source. Signed-off-by: Yoann Congal <yoann.congal@smile.fr> --- Documentation/trace/kprobetrace.rst | 2 ++ 1 file changed, 2 insertions(+)