strace: Unterschied zwischen den Versionen

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  $ <b>strace -so -o file xyz</b>
 
  $ <b>strace -so -o file xyz</b>
 +
 +
== Beispiele ==
 +
 +
=== Beobachtung des Shell-Befehls "date" ===
 +
 +
$ <b>ldd $(which date)</b>
 +
        linux-gate.so.1 =>  (0x00fd1000)
 +
        librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0x00929000)
 +
        libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00614000)
 +
        libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0x00474000)
 +
        /lib/ld-linux.so.2 (0x00abb000)
 +
 +
Nach Aufruf von "strace date" ist zu sehen, dass die Programmdatei "/bin/date" über einen Systemaufruf von "execve()" gestartet wird. Der Kernel überträgt dem Program Loader die Aufgabe, für das Laden der benötigten [[Systembibliotheken]] zu sorgen - "date" benötigt nur die Bibliothek "libc.so.6", also die [[Glibc]] - das kann auch das Programm [[ldd]] herausfinden.
 +
 +
$ <b>strace date</b>
 +
<pre>
 +
execve("/bin/date", ["date"], [/* 41 vars */]) = 0
 +
brk(0)                                  = 0x98bf000
 +
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
 +
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7776000
 +
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
 +
open("/etc/ld.so.cache", O_RDONLY)      = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=83275, ...}) = 0
 +
mmap2(NULL, 83275, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7761000
 +
close(3)                                = 0
 +
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
 +
open("/lib/tls/i686/cmov/librt.so.1", O_RDONLY) = 3
 +
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\30\0\0004\0\0\0"..., 512) = 512
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=30684, ...}) = 0
 +
mmap2(NULL, 33364, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x441000
 +
mmap2(0x448000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0x448000
 +
close(3)                                = 0
 +
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
 +
open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3
 +
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000m\1\0004\0\0\0"..., 512) = 512
 +
fstat64(3, {st_mode=S_IFREG|0755, st_size=1405508, ...}) = 0
 +
mmap2(NULL, 1415592, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x531000
 +
mprotect(0x684000, 4096, PROT_NONE)    = 0
 +
mmap2(0x685000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x153) = 0x685000
 +
mmap2(0x688000, 10664, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x688000
 +
close(3)                                = 0
 +
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
 +
open("/lib/tls/i686/cmov/libpthread.so.0", O_RDONLY) = 3
 +
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 J\0\0004\0\0\0"..., 512) = 512
 +
fstat64(3, {st_mode=S_IFREG|0755, st_size=117086, ...}) = 0
 +
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7760000
 +
mmap2(NULL, 98792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x218000
 +
mmap2(0x22d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0x22d000
 +
mmap2(0x22f000, 4584, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x22f000
 +
close(3)                                = 0
 +
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb775f000
 +
set_thread_area({entry_number:-1 -> 6, base_addr:0xb775f6c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
 +
mprotect(0x22d000, 4096, PROT_READ)    = 0
 +
mprotect(0x685000, 8192, PROT_READ)    = 0
 +
mprotect(0x448000, 4096, PROT_READ)    = 0
 +
mprotect(0x8057000, 4096, PROT_READ)    = 0
 +
mprotect(0xd2a000, 4096, PROT_READ)    = 0
 +
munmap(0xb7761000, 83275)              = 0
 +
set_tid_address(0xb775f728)            = 10712
 +
set_robust_list(0xb775f730, 0xc)        = 0
 +
futex(0xbf9a4310, FUTEX_WAKE_PRIVATE, 1) = 0
 +
futex(0xbf9a4310, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, bf9a4320) = -1 EAGAIN (Resource temporarily  unavailable)
 +
rt_sigaction(SIGRTMIN, {0x21c410, [], SA_SIGINFO}, NULL, 8) = 0
 +
rt_sigaction(SIGRT_1, {0x21c8f0, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
 +
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
 +
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
 +
uname({sys="Linux", node="kanzler", ...}) = 0
 +
brk(0)                                  = 0x98bf000
 +
brk(0x98e0000)                          = 0x98e0000
 +
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
 +
open("/usr/share/locale/locale.alias", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=2570, ...}) = 0
 +
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7775000
 +
read(3, "# Locale name alias data base.\n#"..., 4096) = 2570
 +
read(3, "", 4096)                      = 0
 +
close(3)                                = 0
 +
munmap(0xb7775000, 4096)                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_IDENTIFICATION", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=353, ...}) = 0
 +
mmap2(NULL, 353, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7775000
 +
close(3)                                = 0
 +
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=26048, ...}) = 0
 +
mmap2(NULL, 26048, PROT_READ, MAP_SHARED, 3, 0) = 0xb776e000
 +
close(3)                                = 0
 +
futex(0x687a8c, FUTEX_WAKE_PRIVATE, 2147483647) = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_MEASUREMENT", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=23, ...}) = 0
 +
mmap2(NULL, 23, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776d000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_TELEPHONE", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=49, ...}) = 0
 +
mmap2(NULL, 49, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776c000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_ADDRESS", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=127, ...}) = 0
 +
mmap2(NULL, 127, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776b000
 +
open("/usr/lib/locale/de_CH.utf8/LC_NAME", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=62, ...}) = 0
 +
mmap2(NULL, 62, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776a000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_PAPER", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=34, ...}) = 0
 +
mmap2(NULL, 34, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7769000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_MESSAGES", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_MESSAGES/SYS_LC_MESSAGES", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=54, ...}) = 0
 +
mmap2(NULL, 54, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7768000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_MONETARY", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=294, ...}) = 0
 +
mmap2(NULL, 294, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7767000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_COLLATE", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=1170770, ...}) = 0
 +
mmap2(NULL, 1170770, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7641000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_TIME", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=2382, ...}) = 0
 +
mmap2(NULL, 2382, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7766000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_NUMERIC", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=54, ...}) = 0
 +
mmap2(NULL, 54, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7765000
 +
close(3)                                = 0
 +
open("/usr/lib/locale/de_CH.utf8/LC_CTYPE", O_RDONLY) = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=256484, ...}) = 0
 +
mmap2(NULL, 256484, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7602000
 +
close(3)                                = 0
 +
clock_gettime(CLOCK_REALTIME, {1290902570, 373229098}) = 0
 +
open("/etc/localtime", O_RDONLY)        = 3
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0
 +
fstat64(3, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0
 +
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7601000
 +
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0\0\0\0"..., 4096) = 1892
 +
_llseek(3, -28, [1864], SEEK_CUR)      = 0
 +
read(3, "\nCET-1CEST,M3.5.0,M10.5.0/3\n", 4096) = 28
 +
close(3)                                = 0
 +
munmap(0xb7601000, 4096)                = 0
 +
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
 +
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7601000
 +
write(1, "Son Nov 28 01:02:50 CET 2010\n", 29Son Nov 28 01:02:50 CET 2010
 +
) = 29
 +
close(1)                                = 0
 +
munmap(0xb7601000, 4096)                = 0
 +
close(2)                                = 0
 +
exit_group(0)                          = ?
 +
</pre>
  
 
== Weblinks ==
 
== Weblinks ==

Version vom 28. November 2010, 02:13 Uhr

Der Shell-Befehl strace zeichnet die Systemaufrufe eines laufenden Anwendungsprogramms bzw. eines Prozesses auf.

Der Befehl ist nur unter Linux vorhanden. Unter Solaris und FreeBSD gibt es stattdessen den Befehl truss.

Konzept

strace protokolliert detailliert sämtliche Abläufe an der Schnittstelle zwischen einem Programm und dem Kernel. Der Kernel bietet seine Leistungen (u. a. die Zuteilung von Rechenzeit) den Prozessen über Systemaufrufe an (u. a. "open()", "close()", "read()" und "write()"). Unter Unix und Linux ist die C-Standard-Bibliothek Libc dafür zuständig, die Systemaufrufe im Userspace bereitzustellen. Andere Bibliotheken und alle Programme müssen über diese Programmierschnittstelle gehen, wenn sie mit dem Betriebssystem, der Hardware oder anderen Prozessen kommunizieren und Daten austauschen wollen. Jeder Prozess setzt im Laufe seines Lebens eine Vielzahl von Systemaufrufen ab. strace gibt darüber Auskunft, ob diese Aufrufe gelingen oder nicht und welche Daten der Kernel und der Prozess dabei austauschen. 

----------------------------
| Anwendungsprogramm       |
------------------------   |
| weitere Bibliotheken |   |
----------------------------
| Libc                 |
---------------------------- <-- Ansatzpunkt von strace
| Linux-Kernel         |
----------------------------
| Hardware             |
----------------------------

strace eignet sich so für mehrere Aufgaben:

Aufgabe Frage
Debugging eigener und fremder Programme, notfalls auch ohne Zugang zum Quelltext. Warum arbeitet das Programm nicht so, wie es soll?
Kennenlernen von Systemaufrufen und gängigen Programmiertechniken. Wie funktioniert das Zusammenspiel von Programm und Betriebssystem?
Performance-Untersuchungen, besonders bei Closed Source-Software. Warum läuft das Programm so langsam?

Optionen

Option Beschreibung
-f Anzeige auch aller Kindprozesse.
-o file Protokollierung der Ausgabe von strace in die Datei "file".
-p <PID> Anzeige von Informationen zum bereits laufenden Prozess mit der PID "<PID>".
-v Mehr Informationen.

Verwendung

Anzeige der vom Programm "free" aufgerufenen Systemfunktionen (um die Speicherauslastung des Systems zu ermitteln und anschliessend anzuzeigen). 

$ strace free

Anzeige der vom Programm "free" geöffneten Dateien. Dabei wird die Ausgabe auf die Funktion "open" eingeschränkt. 

$ strace -e trace=open free

Anzeige der vom Programm "free" geöffneten und geschlossenen Dateien. Dabei wird die Ausgabe auf die Funktionen "open" und "close" eingeschränkt. 

$ strace -e trace=open,close free

Anzeige der dateirelevanten Informationen bei der Ausführung des Programms "free". 

$ strace -e trace=file free

Anzeige der prozessverwaltungsbezogenen Informationen bei der Ausführung des Programms "free". 

$ strace -e trace=process free

Anzeige der netzwerkspezifischen Informationen bei der Ausführung des Programms "free". 

$ strace -e trace=network free

Aufzeichnung der Funktionsaufrufe der Anwendung "S99siaddae" in der Datei "/tmp/file". 

$ strace -o /tmp/file /opt/lib/sisis/siadmin/etc/S99siaddae start

Aufzeichnung der Funktionsaufrufe der Anwendung "S99siaddae" in der Datei "/tmp/file". 

$ strace -o /tmp/file /opt/lib/sisis/siadmin/etc/S99siaddae start

Aufzeichnung der Funktionsaufrufe von PID 28756. 

$ strace -p 28756

Anzeige einer Tabelle der von Prozess 28756 geöffneten Dateien. 

$ lsof -p 28756

Ausgabe der Funktionsaufrufe von Befehl "xyz" in die Datei "file". 

$ strace -so -o file xyz

Beispiele

Beobachtung des Shell-Befehls "date"

$ ldd $(which date)
       linux-gate.so.1 =>  (0x00fd1000)
       librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0x00929000)
       libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00614000)
       libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0x00474000)
       /lib/ld-linux.so.2 (0x00abb000)

Nach Aufruf von "strace date" ist zu sehen, dass die Programmdatei "/bin/date" über einen Systemaufruf von "execve()" gestartet wird. Der Kernel überträgt dem Program Loader die Aufgabe, für das Laden der benötigten Systembibliotheken zu sorgen - "date" benötigt nur die Bibliothek "libc.so.6", also die Glibc - das kann auch das Programm ldd herausfinden. 

$ strace date

execve("/bin/date", ["date"], [/* 41 vars */]) = 0
brk(0)                                  = 0x98bf000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7776000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=83275, ...}) = 0
mmap2(NULL, 83275, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7761000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/cmov/librt.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\30\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=30684, ...}) = 0
mmap2(NULL, 33364, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x441000
mmap2(0x448000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0x448000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000m\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1405508, ...}) = 0
mmap2(NULL, 1415592, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x531000
mprotect(0x684000, 4096, PROT_NONE)     = 0
mmap2(0x685000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x153) = 0x685000
mmap2(0x688000, 10664, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x688000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/cmov/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 J\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=117086, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7760000
mmap2(NULL, 98792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x218000
mmap2(0x22d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0x22d000
mmap2(0x22f000, 4584, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x22f000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb775f000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb775f6c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0x22d000, 4096, PROT_READ)     = 0
mprotect(0x685000, 8192, PROT_READ)     = 0
mprotect(0x448000, 4096, PROT_READ)     = 0
mprotect(0x8057000, 4096, PROT_READ)    = 0
mprotect(0xd2a000, 4096, PROT_READ)     = 0
munmap(0xb7761000, 83275)               = 0
set_tid_address(0xb775f728)             = 10712
set_robust_list(0xb775f730, 0xc)        = 0
futex(0xbf9a4310, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xbf9a4310, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, bf9a4320) = -1 EAGAIN (Resource temporarily  unavailable)
rt_sigaction(SIGRTMIN, {0x21c410, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x21c8f0, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
uname({sys="Linux", node="kanzler", ...}) = 0
brk(0)                                  = 0x98bf000
brk(0x98e0000)                          = 0x98e0000
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/locale.alias", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2570, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7775000
read(3, "# Locale name alias data base.\n#"..., 4096) = 2570
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0xb7775000, 4096)                = 0
open("/usr/lib/locale/de_CH.utf8/LC_IDENTIFICATION", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=353, ...}) = 0
mmap2(NULL, 353, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7775000
close(3)                                = 0
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=26048, ...}) = 0
mmap2(NULL, 26048, PROT_READ, MAP_SHARED, 3, 0) = 0xb776e000
close(3)                                = 0
futex(0x687a8c, FUTEX_WAKE_PRIVATE, 2147483647) = 0
open("/usr/lib/locale/de_CH.utf8/LC_MEASUREMENT", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=23, ...}) = 0
mmap2(NULL, 23, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776d000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_TELEPHONE", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=49, ...}) = 0
mmap2(NULL, 49, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776c000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_ADDRESS", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=127, ...}) = 0
mmap2(NULL, 127, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776b000
open("/usr/lib/locale/de_CH.utf8/LC_NAME", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=62, ...}) = 0
mmap2(NULL, 62, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb776a000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_PAPER", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=34, ...}) = 0
mmap2(NULL, 34, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7769000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_MESSAGES", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_MESSAGES/SYS_LC_MESSAGES", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=54, ...}) = 0
mmap2(NULL, 54, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7768000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_MONETARY", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=294, ...}) = 0
mmap2(NULL, 294, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7767000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_COLLATE", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1170770, ...}) = 0
mmap2(NULL, 1170770, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7641000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_TIME", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=2382, ...}) = 0
mmap2(NULL, 2382, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7766000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_NUMERIC", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=54, ...}) = 0
mmap2(NULL, 54, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7765000
close(3)                                = 0
open("/usr/lib/locale/de_CH.utf8/LC_CTYPE", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=256484, ...}) = 0
mmap2(NULL, 256484, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7602000
close(3)                                = 0
clock_gettime(CLOCK_REALTIME, {1290902570, 373229098}) = 0
open("/etc/localtime", O_RDONLY)        = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7601000
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0\0\0\0"..., 4096) = 1892
_llseek(3, -28, [1864], SEEK_CUR)       = 0
read(3, "\nCET-1CEST,M3.5.0,M10.5.0/3\n", 4096) = 28
close(3)                                = 0
munmap(0xb7601000, 4096)                = 0
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7601000
write(1, "Son Nov 28 01:02:50 CET 2010\n", 29Son Nov 28 01:02:50 CET 2010
) = 29
close(1)                                = 0
munmap(0xb7601000, 4096)                = 0
close(2)                                = 0
exit_group(0)                           = ?

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