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Message-ID: <aIfF0X80EhOF2f4J@google.com>
Date: Mon, 28 Jul 2025 11:47:45 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>,
Kan Liang <kan.liang@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v4 5/9] perf annotate: Add --code-with-type support for
TUI
On Fri, Jul 25, 2025 at 05:31:52PM -0700, Ian Rogers wrote:
> On Fri, Jul 25, 2025 at 12:38 PM Namhyung Kim <namhyung@...nel.org> wrote:
> >
> > Until now, the --code-with-type option is available only on stdio.
> > But it was an artifical limitation because of an implemention issue.
> >
> > Implement the same logic in annotation_line__write() for stdio2/TUI.
> > Make disasm_line__write() return the number of printed characters so
> > that it can skip unnecessary operations when the screen is full.
>
> This change seems to be different from the rest of what is the patch,
> is it possible to have it is a patch before this one?
Yep, will do in the next version.
Thanks,
Namhyung
>
> > Remove the limitation and update the man page.
> >
> > Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> > ---
> > tools/perf/Documentation/perf-annotate.txt | 1 -
> > tools/perf/builtin-annotate.c | 5 --
> > tools/perf/ui/browsers/annotate.c | 6 +++
> > tools/perf/util/annotate.c | 61 +++++++++++++++++++---
> > 4 files changed, 61 insertions(+), 12 deletions(-)
> >
> > diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
> > index 46090c5b42b4762f..547f1a2680185e3c 100644
> > --- a/tools/perf/Documentation/perf-annotate.txt
> > +++ b/tools/perf/Documentation/perf-annotate.txt
> > @@ -170,7 +170,6 @@ include::itrace.txt[]
> >
> > --code-with-type::
> > Show data type info in code annotation (for memory instructions only).
> > - Currently it only works with --stdio option.
> >
> >
> > SEE ALSO
> > diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> > index 5d57d2913f3d9a33..646f43b0f7c4c9b0 100644
> > --- a/tools/perf/builtin-annotate.c
> > +++ b/tools/perf/builtin-annotate.c
> > @@ -917,11 +917,6 @@ int cmd_annotate(int argc, const char **argv)
> > symbol_conf.annotate_data_sample = true;
> > } else if (annotate_opts.code_with_type) {
> > symbol_conf.annotate_data_member = true;
> > -
> > - if (!annotate.use_stdio) {
> > - pr_err("--code-with-type only works with --stdio.\n");
> > - goto out_delete;
> > - }
> > }
> >
> > setup_browser(true);
> > diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> > index 23bea5b165774ae7..cdee1969f3131a7c 100644
> > --- a/tools/perf/ui/browsers/annotate.c
> > +++ b/tools/perf/ui/browsers/annotate.c
> > @@ -4,6 +4,7 @@
> > #include "../ui.h"
> > #include "../../util/annotate.h"
> > #include "../../util/debug.h"
> > +#include "../../util/debuginfo.h"
> > #include "../../util/dso.h"
> > #include "../../util/hist.h"
> > #include "../../util/sort.h"
> > @@ -1101,6 +1102,9 @@ int __hist_entry__tui_annotate(struct hist_entry *he, struct map_symbol *ms,
> >
> > ui_helpline__push("Press ESC to exit");
> >
> > + if (annotate_opts.code_with_type)
> > + browser.dbg = debuginfo__new(dso__long_name(dso));
> > +
> > browser.b.width = notes->src->widths.max_line_len;
> > browser.b.nr_entries = notes->src->nr_entries;
> > browser.b.entries = ¬es->src->source;
> > @@ -1111,6 +1115,8 @@ int __hist_entry__tui_annotate(struct hist_entry *he, struct map_symbol *ms,
> >
> > ret = annotate_browser__run(&browser, evsel, hbt);
> >
> > + if (annotate_opts.code_with_type)
> > + debuginfo__delete(browser.dbg);
> > if (not_annotated && !notes->src->tried_source)
> > annotated_source__purge(notes->src);
> >
> > diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> > index d69e406c1bc289cd..06ddc7a9f58722a4 100644
> > --- a/tools/perf/util/annotate.c
> > +++ b/tools/perf/util/annotate.c
> > @@ -1362,6 +1362,11 @@ static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
> > };
> > struct annotation_line *al;
> >
> > + if (annotate_opts.code_with_type) {
> > + evsel__get_arch(apd->evsel, &apd->arch);
> > + apd->dbg = debuginfo__new(dso__long_name(map__dso(apd->he->ms.map)));
> > + }
> > +
> > list_for_each_entry(al, ¬es->src->source, node) {
> > if (annotation_line__filter(al))
> > continue;
> > @@ -1370,6 +1375,9 @@ static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
> > wops.first_line = false;
> > }
> >
> > + if (annotate_opts.code_with_type)
> > + debuginfo__delete(apd->dbg);
> > +
> > return 0;
> > }
> >
> > @@ -1743,7 +1751,7 @@ static double annotation_line__max_percent(struct annotation_line *al,
> > return percent_max;
> > }
> >
> > -static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
> > +static int disasm_line__write(struct disasm_line *dl, struct annotation *notes,
> > void *obj, char *bf, size_t size,
> > void (*obj__printf)(void *obj, const char *fmt, ...),
> > void (*obj__write_graph)(void *obj, int graph))
> > @@ -1771,8 +1779,8 @@ static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
> > obj__printf(obj, " ");
> > }
> >
> > - disasm_line__scnprintf(dl, bf, size, !annotate_opts.use_offset,
> > - notes->src->widths.max_ins_name);
> > + return disasm_line__scnprintf(dl, bf, size, !annotate_opts.use_offset,
> > + notes->src->widths.max_ins_name);
> > }
> >
> > static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
> > @@ -2116,11 +2124,52 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
> >
> > width -= printed + 3;
> >
> > - disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
> > + printed = disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf),
> > + obj__printf, obj__write_graph);
> > +
> > + obj__printf(obj, "%s", bf);
> > + width -= printed;
> > +
> > + if (annotate_opts.code_with_type && apd->dbg) {
> > + struct annotated_data_type *data_type;
> > + int offset = 0;
> > +
> > + data_type = __hist_entry__get_data_type(apd->he, apd->arch,
> > + apd->dbg,
> > + disasm_line(al),
> > + &offset);
> > + if (data_type && data_type != NO_TYPE) {
> > + char member[256];
> > +
> > + printed = scnprintf(bf, sizeof(bf),
> > + "\t\t# data-type: %s",
> > + data_type->self.type_name);
> >
> > - obj__printf(obj, "%-*s", width, bf);
> > + if (data_type != &stackop_type &&
> > + data_type != &canary_type &&
> > + sizeof(bf) > (size_t)printed) {
> > + printed += scnprintf(bf + printed,
> > + sizeof(bf) - printed,
> > + " +%#x", offset);
> > + }
> > +
> > + if (annotated_data_type__get_member_name(data_type,
> > + member,
> > + sizeof(member),
> > + offset) &&
> > + sizeof(bf) > (size_t)printed) {
> > + printed += scnprintf(bf + printed,
> > + sizeof(bf) - printed,
> > + " (%s)", member);
> > + }
> >
> > - (void)apd;
> > + obj__printf(obj, "%-*s", width, bf);
> > + } else {
> > + obj__printf(obj, "%-*s", width, " ");
> > + }
> > + } else {
> > + obj__printf(obj, "%-*s", width, " ");
> > + }
> > }
> >
> > }
> > --
> > 2.50.1
> >
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