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perf list: Support newlines in wordwrap

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Rather than a newline starting from column 0, record a newline was
seen and then add the newline and space before the next word.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Xin Gao <gaoxin@cdjrlc.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221118024607.409083-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-11-17 18:46:05 -08:00 committed by Arnaldo Carvalho de Melo
parent 6f520ce179
commit 1a9c20b45d
1 changed files with 7 additions and 4 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
tools/perf/builtin-list.c
View file

@ -74,17 +74,19 @@ static void wordwrap(const char *s, int start, int max, int corr)
{
int column = start;
int n;
bool saw_newline = false;
while (*s) {
int wlen = strcspn(s, " \t");
int wlen = strcspn(s, " \t\n");
if (column + wlen >= max && column > start) {
if ((column + wlen >= max && column > start) || saw_newline) {
printf("\n%*s", start, "");
column = start + corr;
}
n = printf("%s%.*s", column > start ? " " : "", wlen, s);
if (n <= 0)
break;
saw_newline = s[wlen] == '\n';
s += wlen;
column += n;
s = skip_spaces(s);
@ -146,7 +148,7 @@ static void default_print_event(void *ps, const char *pmu_name, const char *topi
wordwrap(desc, 8, pager_get_columns(), 0);
printf("]\n");
}
long_desc = long_desc ?: desc;
if (long_desc && print_state->long_desc) {
printf("%*s", 8, "[");
wordwrap(long_desc, 8, pager_get_columns(), 0);
@ -154,7 +156,8 @@ static void default_print_event(void *ps, const char *pmu_name, const char *topi
}
if (print_state->detailed && encoding_desc) {
printf("%*s%s", 8, "", encoding_desc);
printf("%*s", 8, "");
wordwrap(encoding_desc, 8, pager_get_columns(), 0);
if (metric_name)
printf(" MetricName: %s", metric_name);
if (metric_expr)