Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-11 08:18:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

bpftool: Enable line buffering for stdout

Browse Source 
The output of bpftool prog tracelog is currently buffered, which is
inconvenient when piping the output into other commands. A simple
tracelog | grep will typically not display anything. This patch fixes it
by enabling line buffering on stdout for the whole bpftool binary.

Fixes: 30da46b5dc3a ("tools: bpftool: add a command to dump the trace pipe")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Paul Chaignon <paul@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211220214528.GA11706@Mem
This commit is contained in:
Paul Chaignon 2021-12-20 22:45:28 +01:00 committed by Andrii Nakryiko
parent 0dd668d208
commit 1a1a0b0364
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/bpf/bpftool/main.c
View File

@ -408,6 +408,8 @@ int main(int argc, char **argv)
bool version_requested = false;
int opt, ret;
setlinebuf(stdout);
last_do_help = do_help;
pretty_output = false;
json_output = false;