在特定時間段內執行 strace

如何在特定時間段內（例如 1 分鐘）在使用者程序上執行 strace，而不終止使用者程序且不使用 Ctrl+C？

我想創建一個腳本來自動執行使用者程序的 strace。

使用timeoutin GNU coreutils，您可以：

• 獲取程序id
• 跑timeout 60 strace -p PID

這是一個例子。

test.sh:

#!/bin/bash

while :; do
   echo "$$"
   sleep 100
done

執行：

$ ./test.sh
27121

執行：strace_timeout

% cuonglm at ~
% timeout 60 strace -p 27121
Process 27121 attached - interrupt to quit
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 27311
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
wait4(-1, 0x7fff374b8598, WNOHANG, NULL) = -1 ECHILD (No child processes)
rt_sigreturn(0xffffffffffffffff)        = 0
rt_sigaction(SIGINT, {0x45c4d0, [], SA_RESTORER, 0x7fcdc10e05c0}, {0x443910, [], SA_RESTORER, 0x7fcdc10e05c0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
write(1, "27121\n", 6)                  = 6
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fcdc1a699d0) = 27328
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x443910, [], SA_RESTORER, 0x7fcdc10e05c0}, {0x45c4d0, [], SA_RESTORER, 0x7fcdc10e05c0}, 8) = 0
wait4(-1,

1分鐘後：

....
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fcdc1a699d0) = 27328
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x443910, [], SA_RESTORER, 0x7fcdc10e05c0}, {0x45c4d0, [], SA_RESTORER, 0x7fcdc10e05c0}, 8) = 0
wait4(-1,  <unfinished ...>
Process 27121 detached
% cuonglm at ~

引用自：https://unix.stackexchange.com/questions/145137