From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f202.google.com (mail-dy1-f202.google.com [74.125.82.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9DCC23815FF for ; Sun, 31 May 2026 08:23:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780215795; cv=none; b=RgXquf61NINXGTDCR5D+nFly8o8k/Y0WNW6N5lgyCqrux9iZZVk2yMfYByzGzASHLRg5xO/y/P9xPPs58KR4/5+E23B0DJj+Urd2WQfA2OVByrQyApamIA3jTRPT//+PKkKmKrE43ZDRK6451PDI37vOhBew9lrJKqN+7SPXL30= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780215795; c=relaxed/simple; bh=GHY8UOEZQgFkQZkPtks2Wzv0O5wAfEaNJkDa2zil9OM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=ZYUSeLEIrGvwFNeNYapJRSY2vx8boNpAk4kB6Cl1BkY8xNueSXSns+q6REEYsBAH/G4hUkod+PY0aKTt6iE7LiZ3FRnr3ER0iNll5SB1vOBHlst3V9HfNWxoxhlN6RiwGqxndzdhR8jlp4XFVqJR+bwOWDHRqeGBMm3BUWyZIoc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=T9ErKFvZ; arc=none smtp.client-ip=74.125.82.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="T9ErKFvZ" Received: by mail-dy1-f202.google.com with SMTP id 5a478bee46e88-304f1820babso2544642eec.1 for ; Sun, 31 May 2026 01:23:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780215789; x=1780820589; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=LgI7Gk169yArBVuMXS9CrXCl+U2LTyt0u+P/s791rwk=; b=T9ErKFvZVL5TFv7zC3g2LHvSgy++Bp/soaOph0VkyJp6QrGbvoxOyi9ksiF6Wq7E+Y eYW+SF/Xwgf6QnbN5FlIpTDWl/J8imaDwdJLiQ1c1ihj2fineYVJkn41YVecg0ARmcSW 6cud/kEarDSwFwGydbauoG+f6HYeyNONm4xgR3/Zj1kf48GEGT0DtK7VuEVZLLDx6nPc 1d6eTYQZTSTVS+hqNQDcR33wazNu2VYirWMugeEn6hFPW/HHvBSIbj0piiL6q29ZvpVj A36L8EeVZm+/6HAwoartUaFh1l8zn82dcCfyv6jYfVdDw9W+ePJilKNgrVcHSytyQ6Gc fmoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780215789; x=1780820589; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LgI7Gk169yArBVuMXS9CrXCl+U2LTyt0u+P/s791rwk=; b=gh99dXM6ZsujVo1wQ7D2wsX2Y0Q7x+GR/u95vv34/CocWuvp61R0uvvJc8itEPIWtR UD1Bbg3dUrsYwqHbNY5IrQDFTTq6yMY9yr5pe5KWxYNdLiN7jazo/BjN+t0c5QYQ7ak2 j9PWf3J40sK/hFKuuFTm14J9AaVgDPJHYsZ/H4eFe35Zu8lKAI5c2jb3PfgzHl9Uic6p uTUlA63iJbYG8SpIHanOUhOvlM3fvG+yybBEO2GLuWh/lNjbGYu6AGXuGbAb4R9IlUdr 49iAkAGB0g4qxuYVcdCW+NCtc4JGS0Nq3d5odlqIjdAc4PLxNABfJ71aMKqfrZ1KG2Tr 8ljg== X-Forwarded-Encrypted: i=1; AFNElJ9oyjpGpzAAyz3K00p4oEe8q+wyEXWrdaKfSssatLxzg6ZEjo8AlZGty9N5813QtHnebvFNMJ72oJqsCE8=@vger.kernel.org X-Gm-Message-State: AOJu0Yzp9BBJbGnUTR5sbfPwX3ct4hfyAwulPfH09S40zmDABte3XxdC ZD/3ofd29a7HUvItNXFPqdsnMBzFGPFSjAWlnpQtdP4xaJoLjh8WYeqMU7xJX6cB9Mdo9+jJ7+y 6SLYPR7UiEg== X-Received: from dybts9.prod.google.com ([2002:a05:7300:f589:b0:303:9bd4:479a]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:3b05:b0:304:df0e:9dba with SMTP id 5a478bee46e88-304fa6a755cmr3052765eec.31.1780215788559; Sun, 31 May 2026 01:23:08 -0700 (PDT) Date: Sun, 31 May 2026 01:22:31 -0700 In-Reply-To: <20260531082235.940833-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260531063736.871777-1-irogers@google.com> <20260531082235.940833-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.823.g6e5bcc1fc9-goog Message-ID: <20260531082235.940833-12-irogers@google.com> Subject: [PATCH v4 11/15] perf test: Skip shebang and SPDX comments in shell test descriptions From: Ian Rogers To: irogers@google.com, acme@kernel.org, adrian.hunter@intel.com, namhyung@kernel.org Cc: alexander.shishkin@linux.intel.com, james.clark@linaro.org, jolsa@kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, peterz@infradead.org Content-Type: text/plain; charset="UTF-8" When extracting shell test descriptions in tests-scripts.c, the parser skipped the first line assuming it was the shebang (#!/bin/sh) and then read the first comment line on line 2 as the test description. However, checkpatch.pl expects shell scripts to declare their SPDX license identifier on line 2 (# SPDX-License-Identifier: ...). This caused the test harness to extract the SPDX license string as the test description. Refactor shell_test__description to use io__getline, skipping both shebang and SPDX comment lines. This allows shell tests to include standard SPDX headers without breaking test suite description extraction. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers --- tools/perf/tests/tests-scripts.c | 81 ++++++++++++++++++-------------- 1 file changed, 46 insertions(+), 35 deletions(-) diff --git a/tools/perf/tests/tests-scripts.c b/tools/perf/tests/tests-scripts.c index f18c4cd337c8..7466c1e8d920 100644 --- a/tools/perf/tests/tests-scripts.c +++ b/tools/perf/tests/tests-scripts.c @@ -31,6 +31,7 @@ static int shell_tests__dir_fd(void) { struct stat st; char path[PATH_MAX], path2[PATH_MAX], *exec_path; + ssize_t len; static const char * const devel_dirs[] = { "./tools/perf/tests/shell", "./tests/shell", @@ -47,13 +48,17 @@ static int shell_tests__dir_fd(void) } /* Use directory of executable */ - if (readlink("/proc/self/exe", path2, sizeof path2) < 0) + len = readlink("/proc/self/exe", path2, sizeof(path2) - 1); + if (len < 0) return -1; + path2[len] = '\0'; /* Follow another level of symlink if there */ if (lstat(path2, &st) == 0 && (st.st_mode & S_IFMT) == S_IFLNK) { - scnprintf(path, sizeof(path), path2); - if (readlink(path, path2, sizeof path2) < 0) + scnprintf(path, sizeof(path), "%s", path2); + len = readlink(path, path2, sizeof(path2) - 1); + if (len < 0) return -1; + path2[len] = '\0'; } /* Get directory */ p = strrchr(path2, '/'); @@ -78,43 +83,49 @@ static int shell_tests__dir_fd(void) static char *shell_test__description(int dir_fd, const char *name) { struct io io; - char buf[128], desc[256]; - int ch, pos = 0; + char buf[128], *line = NULL; + size_t line_len = 0; + ssize_t len; + char *desc = NULL; io__init(&io, openat(dir_fd, name, O_RDONLY), buf, sizeof(buf)); if (io.fd < 0) return NULL; - /* Skip first line - should be #!/bin/bash Shebang */ - if (io__get_char(&io) != '#') - goto err_out; - if (io__get_char(&io) != '!') - goto err_out; - do { - ch = io__get_char(&io); - if (ch < 0) - goto err_out; - } while (ch != '\n'); - - do { - ch = io__get_char(&io); - if (ch < 0) - goto err_out; - } while (ch == '#' || isspace(ch)); - while (ch > 0 && ch != '\n') { - desc[pos++] = ch; - if (pos >= (int)sizeof(desc) - 1) + while ((len = io__getline(&io, &line, &line_len)) > 0) { + char *p = line; + + /* Skip leading whitespace */ + while (*p && isspace(*p)) + p++; + + /* Must be a comment */ + if (*p != '#') + continue; + p++; + + /* Skip shebang or SPDX lines */ + if (*p == '!' || strstr(p, "SPDX-License-Identifier:")) + continue; + + /* Skip whitespace after # */ + while (*p && isspace(*p)) + p++; + + /* If we found non-empty text, this is the description! */ + if (*p && *p != '\n') { + char *end = p + strlen(p); + + while (end > p && isspace(end[-1])) + end--; + *end = '\0'; + desc = strdup(p); break; - ch = io__get_char(&io); + } } - while (pos > 0 && isspace(desc[--pos])) - ; - desc[++pos] = '\0'; - close(io.fd); - return strdup(desc); -err_out: + free(line); close(io.fd); - return NULL; + return desc; } /* Is this full file path a shell script */ @@ -178,9 +189,9 @@ static void append_script(int dir_fd, const char *name, char *desc, char *exclusive; snprintf(link, sizeof(link), "/proc/%d/fd/%d", getpid(), dir_fd); - len = readlink(link, filename, sizeof(filename)); - if (len < 0) { - pr_err("Failed to readlink %s", link); + len = readlink(link, filename, sizeof(filename) - 1); + if (len < 0 || (size_t)len >= sizeof(filename) - strlen(name) - 2) { + pr_err("Failed to readlink %s or path too long", link); return; } filename[len++] = '/'; -- 2.54.0.823.g6e5bcc1fc9-goog