Contents of /tags/mkinitrd-6_2_2/busybox/shell/README.job
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Revision 1005 -
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Sun May 30 12:33:03 2010 UTC (14 years, 4 months ago) by niro
File size: 16547 byte(s)
Sun May 30 12:33:03 2010 UTC (14 years, 4 months ago) by niro
File size: 16547 byte(s)
tagged 'mkinitrd-6_2_2'
1 | strace of "sleep 1 | sleep 2" being run from interactive bash 3.0 |
2 | |
3 | |
4 | Synopsis: |
5 | open /dev/tty [, if fails, open ttyname(0)]; close /* helps re-establish ctty */ |
6 | get current signal mask |
7 | TCGETS on fd# 0 |
8 | TCGETS on fd# 2 /* NB: if returns ENOTTY (2>/dev/null), sh seems to disable job control, |
9 | does not show prompt, but still executes cmds from fd# 0 */ |
10 | install default handlers for CHLD QUIT TERM |
11 | install common handler for HUP INT ILL TRAP ABRT FPE BUS SEGV SYS PIPE ALRM TERM XCPU XFSZ VTALRM USR1 USR2 |
12 | ignore QUIT |
13 | install handler for INT |
14 | ignore TERM |
15 | install handler for INT |
16 | ignore TSTP TTOU TTIN |
17 | install handler for WINCH |
18 | get pid, ppid |
19 | block all signals |
20 | unblock all signals |
21 | get our pprocess group |
22 | minidoc: |
23 | Each process group is a member of a session and each process is a member |
24 | of the session of which its process group is a member. |
25 | Process groups are used for distribution of signals, and by terminals |
26 | to arbitrate requests for their input: processes that have the same |
27 | process group as the terminal are foreground and may read, while others |
28 | will block with a signal if they attempt to read. These calls are thus used |
29 | by programs (shells) to create process groups in implementing job control. |
30 | The TIOCGPGRP and TIOCSPGRP calls described in termios(3) are used to get/set |
31 | the process group of the control terminal. |
32 | If a session has a controlling terminal, CLOCAL is not set and a hangup occurs, |
33 | then the session leader is sent a SIGHUP. If the session leader exits, |
34 | the SIGHUP signal will be sent to each process in the foreground process |
35 | group of the controlling terminal. |
36 | If the exit of the process causes a process group to become orphaned, |
37 | and if any member of the newly-orphaned process group is stopped, then a SIGHUP |
38 | signal followed by a SIGCONT signal will be sent to each process |
39 | in the newly-orphaned process group. |
40 | ... |
41 | dup stderr to fd# 255 |
42 | move ourself to our own process group |
43 | block CHLD TSTP TTIN TTOU |
44 | set tty's (255, stderr's) foreground process group to our group |
45 | allow all signals |
46 | mark 255 CLOEXEC |
47 | set CHLD handler |
48 | get signal mask |
49 | get fd#0 flags |
50 | get signal mask |
51 | set INT handler |
52 | block CHLD TSTP TTIN TTOU |
53 | set fd #255 foreground process group to our group |
54 | allow all signals |
55 | set INT handler |
56 | block all signals |
57 | allow all signals |
58 | block INT |
59 | allow all signals |
60 | lotsa sigactions: set INT,ALRM,WINCH handlers, ignore TERM,QUIT,TSTP,TTOU,TTIN |
61 | block all signals |
62 | allow all signals |
63 | block all signals |
64 | allow all signals |
65 | block all signals |
66 | allow all signals |
67 | read "sleep 1 | sleep 2\n" |
68 | block INT |
69 | TCSETSW on fd# 0 |
70 | allow all signals |
71 | lotsa sigactions: set INT,ALRM,WINCH handlers, ignore TERM,QUIT,TSTP,TTOU,TTIN |
72 | block CHLD |
73 | pipe([4, 5]) /* oops seems I lost another pipe() in editing... */ |
74 | fork child #1 |
75 | put child in it's own process group |
76 | block only CHLD |
77 | close(5) |
78 | block only INT CHLD |
79 | fork child #2 |
80 | put child in the same process group as first one |
81 | block only CHLD |
82 | close(4) |
83 | block only CHLD |
84 | block only CHLD TSTP TTIN TTOU |
85 | set fd# 255 foreground process group to first child's one |
86 | block only CHLD |
87 | block only CHLD |
88 | block only CHLD |
89 | /* note: because shell is not in foreground now, e.g. Ctrl-C will send INT to children only! */ |
90 | wait4 for children to die or stop - first child exits |
91 | wait4 for children to die or stop - second child exits |
92 | block CHLD TSTP TTIN TTOU |
93 | set fd# 255 foreground process group to our own one |
94 | block only CHLD |
95 | block only CHLD |
96 | block nothing |
97 | --- SIGCHLD (Child exited) @ 0 (0) --- |
98 | wait for it - no child (already waited for) |
99 | sigreturn() |
100 | read signal mask |
101 | lotsa sigactions... |
102 | read next command |
103 | |
104 | |
105 | execve("/bin/sh", ["sh"], [/* 34 vars */]) = 0 |
106 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
107 | ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 |
108 | ioctl(2, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 |
109 | rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0 |
110 | rt_sigaction(SIGQUIT, {SIG_DFL}, {SIG_DFL}, 8) = 0 |
111 | rt_sigaction(SIGTERM, {SIG_DFL}, {SIG_DFL}, 8) = 0 |
112 | rt_sigaction(SIGHUP, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
113 | rt_sigaction(SIGINT, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
114 | rt_sigaction(SIGILL, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
115 | rt_sigaction(SIGTRAP, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
116 | rt_sigaction(SIGABRT, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
117 | rt_sigaction(SIGFPE, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
118 | rt_sigaction(SIGBUS, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
119 | rt_sigaction(SIGSEGV, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
120 | rt_sigaction(SIGSYS, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
121 | rt_sigaction(SIGPIPE, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
122 | rt_sigaction(SIGALRM, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
123 | rt_sigaction(SIGTERM, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
124 | rt_sigaction(SIGXCPU, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
125 | rt_sigaction(SIGXFSZ, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
126 | rt_sigaction(SIGVTALRM, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
127 | rt_sigaction(SIGUSR1, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
128 | rt_sigaction(SIGUSR2, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
129 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
130 | rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_DFL}, 8) = 0 |
131 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
132 | rt_sigaction(SIGTERM, {SIG_IGN}, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
133 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
134 | rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_DFL}, 8) = 0 |
135 | rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_DFL}, 8) = 0 |
136 | rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_DFL}, 8) = 0 |
137 | rt_sigaction(SIGWINCH, {0x807dc33, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
138 | getpid() = 19473 |
139 | getppid() = 19472 |
140 | rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 |
141 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
142 | getpgrp() = 1865 |
143 | dup(2) = 4 |
144 | fcntl64(255, F_GETFD) = -1 EBADF (Bad file descriptor) |
145 | dup2(4, 255) = 255 |
146 | close(4) = 0 |
147 | ioctl(255, TIOCGPGRP, [1865]) = 0 |
148 | getpid() = 19473 |
149 | setpgid(0, 19473) = 0 |
150 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0 |
151 | ioctl(255, TIOCSPGRP, [19473]) = 0 |
152 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
153 | fcntl64(255, F_SETFD, FD_CLOEXEC) = 0 |
154 | rt_sigaction(SIGCHLD, {0x807c922, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_DFL}, 8) = 0 |
155 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
156 | fcntl64(0, F_GETFL) = 0x2 (flags O_RDWR) |
157 | ... |
158 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
159 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
160 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0 |
161 | ioctl(255, TIOCSPGRP, [19473]) = 0 |
162 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
163 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
164 | rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 |
165 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
166 | rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 |
167 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
168 | rt_sigaction(SIGINT, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
169 | rt_sigaction(SIGTERM, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
170 | rt_sigaction(SIGTERM, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
171 | rt_sigaction(SIGQUIT, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
172 | rt_sigaction(SIGQUIT, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
173 | rt_sigaction(SIGALRM, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
174 | rt_sigaction(SIGTSTP, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
175 | rt_sigaction(SIGTSTP, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
176 | rt_sigaction(SIGTTOU, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
177 | rt_sigaction(SIGTTOU, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
178 | rt_sigaction(SIGTTIN, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
179 | rt_sigaction(SIGTTIN, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
180 | rt_sigaction(SIGWINCH, {0x80ca5cd, [], SA_RESTORER|SA_RESTART, 0x6ff7a4f8}, {0x807dc33, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
181 | rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 |
182 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
183 | rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 |
184 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
185 | rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 |
186 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
187 | write(2, "sh-3.00# ", 9) = 9 |
188 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
189 | read(0, "s", 1) = 1 |
190 | write(2, "s", 1) = 1 |
191 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
192 | read(0, "l", 1) = 1 |
193 | write(2, "l", 1) = 1 |
194 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
195 | ... rest of "sleep 1 | sleep 2" entered... |
196 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
197 | read(0, "2", 1) = 1 |
198 | write(2, "2", 1) = 1 |
199 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
200 | read(0, "\r", 1) = 1 |
201 | write(2, "\n", 1) = 1 |
202 | rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 |
203 | ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo ...}) = 0 |
204 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
205 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
206 | rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_IGN}, 8) = 0 |
207 | rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_IGN}, 8) = 0 |
208 | rt_sigaction(SIGALRM, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
209 | rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_IGN}, 8) = 0 |
210 | rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_IGN}, 8) = 0 |
211 | rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_IGN}, 8) = 0 |
212 | rt_sigaction(SIGWINCH, {0x807dc33, [], SA_RESTORER, 0x6ff7a4f8}, {0x80ca5cd, [], SA_RESTORER|SA_RESTART, 0x6ff7a4f8}, 8) = 0 |
213 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
214 | rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 |
215 | pipe([4, 5]) = 0 |
216 | rt_sigprocmask(SIG_BLOCK, [INT CHLD], [CHLD], 8) = 0 |
217 | fork() = 19755 |
218 | setpgid(19755, 19755) = 0 |
219 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
220 | close(5) = 0 |
221 | rt_sigprocmask(SIG_BLOCK, [INT CHLD], [CHLD], 8) = 0 |
222 | fork() = 19756 |
223 | setpgid(19756, 19755) = 0 |
224 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
225 | close(4) = 0 |
226 | rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD], 8) = 0 |
227 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [CHLD], 8) = 0 |
228 | ioctl(255, TIOCSPGRP, [19755]) = 0 |
229 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
230 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
231 | rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD], 8) = 0 |
232 | wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WUNTRACED, NULL) = 19755 |
233 | wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WUNTRACED, NULL) = 19756 |
234 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [CHLD], 8) = 0 |
235 | ioctl(255, TIOCSPGRP, [19473]) = 0 |
236 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
237 | rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0 |
238 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
239 | --- SIGCHLD (Child exited) @ 0 (0) --- |
240 | wait4(-1, 0x77fc9c54, WNOHANG|WUNTRACED, NULL) = -1 ECHILD (No child processes) |
241 | sigreturn() = ? (mask now []) |
242 | rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 |
243 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
244 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0 |
245 | ioctl(255, TIOCSPGRP, [19473]) = 0 |
246 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
247 | rt_sigaction(SIGINT, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
248 | rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 |
249 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
250 | rt_sigaction(SIGINT, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
251 | rt_sigaction(SIGTERM, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
252 | rt_sigaction(SIGTERM, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
253 | rt_sigaction(SIGQUIT, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
254 | rt_sigaction(SIGQUIT, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
255 | rt_sigaction(SIGALRM, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {0x808f752, [HUP INT ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
256 | rt_sigaction(SIGTSTP, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
257 | rt_sigaction(SIGTSTP, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
258 | rt_sigaction(SIGTTOU, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
259 | rt_sigaction(SIGTTOU, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
260 | rt_sigaction(SIGTTIN, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, {SIG_IGN}, 8) = 0 |
261 | rt_sigaction(SIGTTIN, {SIG_IGN}, {0x80ca530, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
262 | rt_sigaction(SIGWINCH, {0x80ca5cd, [], SA_RESTORER|SA_RESTART, 0x6ff7a4f8}, {0x807dc33, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
263 | write(2, "sh-3.00# ", 9) = 9 |
264 | |
265 | |
266 | getpid() = 19755 |
267 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
268 | rt_sigaction(SIGTSTP, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
269 | rt_sigaction(SIGTTIN, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
270 | rt_sigaction(SIGTTOU, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
271 | setpgid(19755, 19755) = 0 |
272 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0 |
273 | ioctl(255, TIOCSPGRP, [19755]) = 0 |
274 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
275 | close(4) = 0 |
276 | dup2(5, 1) = 1 |
277 | close(5) = 0 |
278 | rt_sigaction(SIGINT, {SIG_DFL}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
279 | rt_sigaction(SIGQUIT, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
280 | rt_sigaction(SIGTERM, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
281 | rt_sigaction(SIGCHLD, {SIG_DFL}, {0x807c922, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
282 | execve("/bin/sleep", ["sleep", "1"], [/* 34 vars */]) = 0 |
283 | ... |
284 | _exit(0) = ? |
285 | |
286 | |
287 | getpid() = 19756 |
288 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
289 | rt_sigaction(SIGTSTP, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
290 | rt_sigaction(SIGTTIN, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
291 | rt_sigaction(SIGTTOU, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
292 | setpgid(19756, 19755) = 0 |
293 | rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0 |
294 | ioctl(255, TIOCSPGRP, [19755]) = 0 |
295 | rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 |
296 | dup2(4, 0) = 0 |
297 | close(4) = 0 |
298 | rt_sigaction(SIGINT, {SIG_DFL}, {0x808f7d7, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
299 | rt_sigaction(SIGQUIT, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
300 | rt_sigaction(SIGTERM, {SIG_DFL}, {SIG_IGN}, 8) = 0 |
301 | rt_sigaction(SIGCHLD, {SIG_DFL}, {0x807c922, [], SA_RESTORER, 0x6ff7a4f8}, 8) = 0 |
302 | execve("/bin/sleep", ["sleep", "2"], [/* 34 vars */]) = 0 |
303 | ... |
304 | _exit(0) = ? |