lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 26 Aug 2012 12:24:46 -0600 From: David Ahern <dsahern@...il.com> To: acme@...stprotocols.net, linux-kernel@...r.kernel.org Cc: David Ahern <dsahern@...il.com>, Ingo Molnar <mingo@...nel.org>, Frederic Weisbecker <fweisbec@...il.com>, Peter Zijlstra <peterz@...radead.org> Subject: [PATCH 6/7] perf script: remove use of die/exit Allows perf to clean up properly on exit. Only exits left are exec failures which are appropriate and usage callbacks that list available options. Signed-off-by: David Ahern <dsahern@...il.com> Cc: Ingo Molnar <mingo@...nel.org> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Peter Zijlstra <peterz@...radead.org> --- tools/perf/builtin-script.c | 60 +++++++++++++++++++++++++++++-------------- 1 file changed, 41 insertions(+), 19 deletions(-) diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 2d6e3b2..c350cfe 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1153,18 +1153,23 @@ static const struct option options[] = { OPT_END() }; -static bool have_cmd(int argc, const char **argv) +static int have_cmd(int argc, const char **argv) { char **__argv = malloc(sizeof(const char *) * argc); - if (!__argv) - die("malloc"); + if (!__argv) { + pr_err("malloc failed\n"); + return -1; + } + memcpy(__argv, argv, sizeof(const char *) * argc); argc = parse_options(argc, (const char **)__argv, record_options, NULL, PARSE_OPT_STOP_AT_NON_OPTION); free(__argv); - return argc != 0; + system_wide = (argc == 0); + + return 0; } int cmd_script(int argc, const char **argv, const char *prefix __used) @@ -1231,13 +1236,13 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) if (pipe(live_pipe) < 0) { perror("failed to create pipe"); - exit(-1); + return -1; } pid = fork(); if (pid < 0) { perror("failed to fork"); - exit(-1); + return -1; } if (!pid) { @@ -1249,13 +1254,18 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) if (is_top_script(argv[0])) { system_wide = true; } else if (!system_wide) { - system_wide = !have_cmd(argc - rep_args, - &argv[rep_args]); + if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { + err = -1; + goto out; + } } __argv = malloc((argc + 6) * sizeof(const char *)); - if (!__argv) - die("malloc"); + if (!__argv) { + pr_err("malloc failed\n"); + err = -ENOMEM; + goto out; + } __argv[j++] = "/bin/sh"; __argv[j++] = rec_script_path; @@ -1277,8 +1287,12 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) close(live_pipe[1]); __argv = malloc((argc + 4) * sizeof(const char *)); - if (!__argv) - die("malloc"); + if (!__argv) { + pr_err("malloc failed\n"); + err = -ENOMEM; + goto out; + } + j = 0; __argv[j++] = "/bin/sh"; __argv[j++] = rep_script_path; @@ -1303,12 +1317,20 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) if (!rec_script_path) system_wide = false; - else if (!system_wide) - system_wide = !have_cmd(argc - 1, &argv[1]); + else if (!system_wide) { + if (have_cmd(argc - 1, &argv[1]) != 0) { + err = -1; + goto out; + } + } __argv = malloc((argc + 2) * sizeof(const char *)); - if (!__argv) - die("malloc"); + if (!__argv) { + pr_err("malloc failed\n"); + err = -ENOMEM; + goto out; + } + __argv[j++] = "/bin/sh"; __argv[j++] = script_path; if (system_wide) @@ -1357,18 +1379,18 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) input = open(session->filename, O_RDONLY); /* input_name */ if (input < 0) { perror("failed to open file"); - exit(-1); + return -1; } err = fstat(input, &perf_stat); if (err < 0) { perror("failed to stat file"); - exit(-1); + return -1; } if (!perf_stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); - exit(0); + return 0; } scripting_ops = script_spec__lookup(generate_script_lang); -- 1.7.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists