Re: [PATCH v2] tracepoint: add new trace command "printf" and agent expression "printf" [3] doc

[Hui Zhu <teawater@gmail.com>]

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These patches are for 7.3 and trunk.

Best,
Hui

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---
 doc/agentexpr.texi |    7 +++++++
 doc/gdb.texinfo    |    7 +++++++
 2 files changed, 14 insertions(+)

--- a/doc/agentexpr.texi
+++ b/doc/agentexpr.texi
@@ -489,6 +489,13 @@ named @code{trace_quick16}, for consiste
 Record the value of trace state variable number @var{n} in the trace
 buffer.  The handling of @var{n} is as described for @code{getv}.
 
+@item @code{printf} (0x31) @var{n} @var{template}: @result{}
+Print a value on the stack under control of the string @var{template}.
+@var{template} is a null-terminated string.
+If @var{n} is 0, just output the string template.
+If @var{n} is 1, pop a value from the stack and print it under control
+of the string @var{template}.
+
 @item @code{end} (0x27): @result{}
 Stop executing bytecode; the result should be the top element of the
 stack.  If the purpose of the expression was to compute an lvalue or a
--- a/doc/gdb.texinfo
+++ b/doc/gdb.texinfo
@@ -10322,6 +10322,13 @@ state variables (@pxref{Trace State Vari
 values to the trace buffer, as would be the case if the @code{collect}
 action were used.
 
+@kindex printf, in tracepoint actions
+@item printf @var{template}, @var{expressions}@dots{}
+Print the values of one or more @var{expressions} under control of
+the string @var{template}.
+@var{template} is a format string of the same form as used with the
+@value{GDBN} command @code{printf} (@pxref{Output, printf}).
+
 @kindex while-stepping @r{(tracepoints)}
 @item while-stepping @var{n}
 Perform @var{n} single-step instruction traces after the tracepoint,

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---
 doc/agentexpr.texi |    7 +++++++
 doc/gdb.texinfo    |    7 +++++++
 2 files changed, 14 insertions(+)

--- a/doc/agentexpr.texi
+++ b/doc/agentexpr.texi
@@ -489,6 +489,13 @@ named @code{trace_quick16}, for consiste
 Record the value of trace state variable number @var{n} in the trace
 buffer.  The handling of @var{n} is as described for @code{getv}.
 
+@item @code{printf} (0x31) @var{n} @var{template}: @result{}
+Print a value on the stack under control of the string @var{template}.
+@var{template} is a null-terminated string.
+If @var{n} is 0, just output the string template.
+If @var{n} is 1, pop a value from the stack and print it under control
+of the string @var{template}.
+
 @item @code{end} (0x27): @result{}
 Stop executing bytecode; the result should be the top element of the
 stack.  If the purpose of the expression was to compute an lvalue or a
--- a/doc/gdb.texinfo
+++ b/doc/gdb.texinfo
@@ -10257,6 +10257,13 @@ state variables (@pxref{Trace State Vari
 values to the trace buffer, as would be the case if the @code{collect}
 action were used.
 
+@kindex printf, in tracepoint actions
+@item printf @var{template}, @var{expressions}@dots{}
+Print the values of one or more @var{expressions} under control of
+the string @var{template}.
+@var{template} is a format string of the same form as used with the
+@value{GDBN} command @code{printf} (@pxref{Output, printf}).
+
 @kindex while-stepping @r{(tracepoints)}
 @item while-stepping @var{n}
 Perform @var{n} single-step instruction traces after the tracepoint,