linux-kernel - [PATCH 1/7] perf doc: Fix perfman.info build

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Message-Id: <20210715013343.2286699-2-irogers@google.com>
Date:   Wed, 14 Jul 2021 18:33:37 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     eranian@...gle.com, Ian Rogers <irogers@...gle.com>
Subject: [PATCH 1/7] perf doc: Fix perfman.info build

Before this change 'make perfman.info' fails as cat-texi.perl is
missing. It also fails as the makeinfo output isn't written into the
appropriate file. Add cat-texi.perl from git. Add missing output file
flag for makeinfo.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/Documentation/Makefile      |  2 +-
 tools/perf/Documentation/cat-texi.perl | 46 ++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100755 tools/perf/Documentation/cat-texi.perl

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index 6e54979c2124..859ec1496716 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -331,7 +331,7 @@ $(OUTPUT)perfman.texi: $(MAN_XML) cat-texi.perl
 	mv $@+ $@
 
 $(OUTPUT)perfman.info: $(OUTPUT)perfman.texi
-	$(QUIET_MAKEINFO)$(MAKEINFO) --no-split --no-validate $*.texi
+	$(QUIET_MAKEINFO)$(MAKEINFO) --no-split --no-validate -o $@ $*.texi
 
 $(patsubst %.txt,%.texi,$(MAN_TXT)): %.texi : %.xml
 	$(QUIET_DB2TEXI)$(RM) $@+ $@ && \
diff --git a/tools/perf/Documentation/cat-texi.perl b/tools/perf/Documentation/cat-texi.perl
new file mode 100755
index 000000000000..14d2f8341517
--- /dev/null
+++ b/tools/perf/Documentation/cat-texi.perl
@@ -0,0 +1,46 @@
+#!/usr/bin/perl -w
+
+use strict;
+use warnings;
+
+my @menu = ();
+my $output = $ARGV[0];
+
+open my $tmp, '>', "$output.tmp";
+
+while (<STDIN>) {
+	next if (/^\\input texinfo/../\@node Top/);
+	next if (/^\@bye/ || /^\.ft/);
+	if (s/^\@top (.*)/\@node $1,,,Top/) {
+		push @menu, $1;
+	}
+	s/\(\@pxref\{\[(URLS|REMOTES)\]}\)//;
+	s/\@anchor\{[^{}]*\}//g;
+	print $tmp $_;
+}
+close $tmp;
+
+print '\input texinfo
+@...filename gitman.info
+@...umentencoding UTF-8
+@...category Development
+@...entry
+* Git Man Pages: (gitman).  Manual pages for Git revision control system
+@end direntry
+@...e Top,,, (dir)
+@top Git Manual Pages
+@...umentlanguage en
+@...u
+';
+
+for (@menu) {
+	print "* ${_}::\n";
+}
+print "\@end menu\n";
+open $tmp, '<', "$output.tmp";
+while (<$tmp>) {
+	print;
+}
+close $tmp;
+print "\@bye\n";
+unlink "$output.tmp";
-- 
2.32.0.402.g57bb445576-goog