linux-kernel - [PATCH v1 4/4] perf trace beauty: Add shellcheck to scripts

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Date: Mon,  8 Apr 2024 19:32:16 -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>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Ravi Bangoria <ravi.bangoria@....com>, 
	Kajol Jain <kjain@...ux.ibm.com>, Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, 
	Oliver Upton <oliver.upton@...ux.dev>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 4/4] perf trace beauty: Add shellcheck to scripts

Add shell check to scripts generating perf trace lookup tables. Fix
quoting issue in arch_errno_names.sh.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/trace/beauty/Build               | 14 ++++++++++++++
 tools/perf/trace/beauty/arch_errno_names.sh |  8 +++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/tools/perf/trace/beauty/Build b/tools/perf/trace/beauty/Build
index d8ce1b698983..cb3c1399ff40 100644
--- a/tools/perf/trace/beauty/Build
+++ b/tools/perf/trace/beauty/Build
@@ -20,3 +20,17 @@ perf-y += statx.o
 perf-y += sync_file_range.o
 perf-y += timespec.o
 perf-y += tracepoints/
+
+ifdef SHELLCHECK
+  SHELL_TESTS := $(wildcard trace/beauty/*.sh)
+  TEST_LOGS := $(SHELL_TESTS:trace/beauty/%=%.shellcheck_log)
+else
+  SHELL_TESTS :=
+  TEST_LOGS :=
+endif
+
+$(OUTPUT)%.shellcheck_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)shellcheck -s bash -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-y += $(TEST_LOGS)
diff --git a/tools/perf/trace/beauty/arch_errno_names.sh b/tools/perf/trace/beauty/arch_errno_names.sh
index 7df4bf5b55a3..30d3889b2957 100755
--- a/tools/perf/trace/beauty/arch_errno_names.sh
+++ b/tools/perf/trace/beauty/arch_errno_names.sh
@@ -60,10 +60,12 @@ create_arch_errno_table_func()
 	printf 'arch_syscalls__strerrno_t *arch_syscalls__strerrno_function(const char *arch)\n'
 	printf '{\n'
 	for arch in $archlist; do
-		printf '\tif (!strcmp(arch, "%s"))\n' $(arch_string "$arch")
-		printf '\t\treturn errno_to_name__%s;\n' $(arch_string "$arch")
+		arch_str=$(arch_string "$arch")
+		printf '\tif (!strcmp(arch, "%s"))\n' "$arch_str"
+		printf '\t\treturn errno_to_name__%s;\n' "$arch_str"
 	done
-	printf '\treturn errno_to_name__%s;\n' $(arch_string "$default")
+	arch_str=$(arch_string "$default")
+	printf '\treturn errno_to_name__%s;\n' "$arch_str"
 	printf '}\n'
 }
 
-- 
2.44.0.478.gd926399ef9-goog