From: Wander Lairson Costa <wander@redhat.com>
To: Steven Rostedt <rostedt@goodmis.org>,
Tomas Glozar <tglozar@redhat.com>,
Wander Lairson Costa <wander@redhat.com>,
Ivan Pravdin <ipravdin.official@gmail.com>,
Crystal Wood <crwood@redhat.com>,
Costa Shulyupin <costa.shul@redhat.com>,
John Kacur <jkacur@redhat.com>,
Tiezhu Yang <yangtiezhu@loongson.cn>,
linux-trace-kernel@vger.kernel.org (open list:Real-time Linux
Analysis (RTLA) tools),
linux-kernel@vger.kernel.org (open list:Real-time Linux Analysis
(RTLA) tools),
bpf@vger.kernel.org (open list:BPF
[MISC]:Keyword:(?:\b|_)bpf(?:\b|_))
Subject: [PATCH v2 02/18] rtla: Use strdup() to simplify code
Date: Tue, 6 Jan 2026 08:49:38 -0300 [thread overview]
Message-ID: <20260106133655.249887-3-wander@redhat.com> (raw)
In-Reply-To: <20260106133655.249887-1-wander@redhat.com>
The actions_add_trace_output() and actions_add_shell() functions were
using calloc() followed by strcpy() to allocate and copy a string.
This can be simplified by using strdup(), which allocates memory and
copies the string in a single step.
Replace the calloc() and strcpy() calls with strdup(), making the
code more concise and readable.
Signed-off-by: Wander Lairson Costa <wander@redhat.com>
---
tools/tracing/rtla/src/actions.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/tools/tracing/rtla/src/actions.c b/tools/tracing/rtla/src/actions.c
index ff7811e175930..090d514fe4126 100644
--- a/tools/tracing/rtla/src/actions.c
+++ b/tools/tracing/rtla/src/actions.c
@@ -69,8 +69,7 @@ actions_add_trace_output(struct actions *self, const char *trace_output)
self->present[ACTION_TRACE_OUTPUT] = true;
action->type = ACTION_TRACE_OUTPUT;
- action->trace_output = calloc_fatal(strlen(trace_output) + 1, sizeof(char));
- strcpy(action->trace_output, trace_output);
+ action->trace_output = strdup_fatal(trace_output);
}
/*
@@ -97,8 +96,7 @@ actions_add_shell(struct actions *self, const char *command)
self->present[ACTION_SHELL] = true;
action->type = ACTION_SHELL;
- action->command = calloc_fatal(strlen(command) + 1, sizeof(char));
- strcpy(action->command, command);
+ action->command = strdup_fatal(command);
}
/*
--
2.52.0
next prev parent reply other threads:[~2026-01-06 13:39 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-06 11:49 [PATCH v2 00/18] rtla: Code quality and robustness improvements Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 01/18] rtla: Exit on memory allocation failures during initialization Wander Lairson Costa
2026-01-06 11:49 ` Wander Lairson Costa [this message]
2026-01-06 11:49 ` [PATCH v2 03/18] rtla: Introduce for_each_action() helper Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 04/18] rtla: Replace atoi() with a robust strtoi() Wander Lairson Costa
2026-01-12 12:27 ` Costa Shulyupin
2026-01-12 12:39 ` Tomas Glozar
2026-01-06 11:49 ` [PATCH v2 05/18] rtla: Simplify argument parsing Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 06/18] rtla: Use strncmp_static() in more places Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 07/18] rtla: Introduce common_restart() helper Wander Lairson Costa
2026-01-07 12:03 ` Tomas Glozar
2026-01-07 12:43 ` Wander Lairson Costa
2026-01-07 13:47 ` Tomas Glozar
2026-01-07 13:50 ` Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 08/18] rtla: Use standard exit codes for result enum Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 09/18] rtla: Remove redundant memset after calloc Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 10/18] rtla: Replace magic number with MAX_PATH Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 11/18] rtla: Remove unused headers Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 12/18] rtla: Fix NULL pointer dereference in actions_parse Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 13/18] rtla: Fix buffer size for strncpy in timerlat_aa Wander Lairson Costa
2026-01-06 16:03 ` Steven Rostedt
2026-01-07 13:20 ` Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 14/18] rtla: Add generated output files to gitignore Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 15/18] rtla: Make stop_tracing variable volatile Wander Lairson Costa
2026-01-06 16:05 ` Steven Rostedt
2026-01-06 17:47 ` Crystal Wood
2026-01-07 13:24 ` Wander Lairson Costa
2026-01-07 16:31 ` Steven Rostedt
2026-01-06 11:49 ` [PATCH v2 16/18] rtla: Ensure null termination after read operations in utils.c Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 17/18] rtla: Fix parse_cpu_set() return value documentation Wander Lairson Costa
2026-01-06 11:49 ` [PATCH v2 18/18] rtla: Simplify code by caching string lengths Wander Lairson Costa
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260106133655.249887-3-wander@redhat.com \
--to=wander@redhat.com \
--cc=bpf@vger.kernel.org \
--cc=costa.shul@redhat.com \
--cc=crwood@redhat.com \
--cc=ipravdin.official@gmail.com \
--cc=jkacur@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=tglozar@redhat.com \
--cc=yangtiezhu@loongson.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox