how can i know the system calls of command using truss or strace

hirenshah.05_at_gmail.com
Date: 09/30/05 

Date: 29 Sep 2005 20:55:26 -0700

i want to know actual system calls of unix command. i am using sun
solaris, so truss command will give me the system calls.

but when i using this command it is giving me lot of information, i am
not getting anything from it. i am looking for system calls.

eg.: truss ls

execve("/usr/bin/ls", 0xFFBEF764, 0xFFBEF76C) argc = 1
resolvepath("/usr/lib/ld.so.1", "/usr/lib/ld.so.1", 1023) = 16
open("/var/ld/ld.config", O_RDONLY) Err#2 ENOENT
stat("./libc.so.1", 0xFFBEED68) Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/lib/libc.so.1", 0xFFBEED68) Err#2
ENOENT
stat("/apps/cadence/ldv41/tools/verilog/lib/libc.so.1", 0xFFBEED68)
Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/vtools/vfault/lib/libc.so.1",
0xFFBEED68) Err#2 ENOENT
stat("/usr/lib/libc.so.1", 0xFFBEED68) = 0
open("/usr/lib/libc.so.1", O_RDONLY) = 3
mmap(0x00000000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
0xFF390000
mmap(0xFF3A4FF4, 802816, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF280000
mmap(0xFF280000, 702392, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF280000
mmap(0xFF33C000, 24772, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 704512) = 0xFF33C000
munmap(0xFF32C000, 65536) = 0
memcntl(0xFF280000, 113528, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
close(3) = 0
stat("./libdl.so.1", 0xFFBEED68) Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/lib/libdl.so.1", 0xFFBEED68) Err#2
ENOENT
stat("/apps/cadence/ldv41/tools/verilog/lib/libdl.so.1", 0xFFBEED68)
Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/vtools/vfault/lib/libdl.so.1",
0xFFBEED68) Err#2 ENOENT
stat("/usr/lib/libdl.so.1", 0xFFBEED68) = 0
open("/usr/lib/libdl.so.1", O_RDONLY) = 3
mmap(0xFF390000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF390000
mmap(0xFF3A4FF4, 8192, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF380000
mmap(0xFF380000, 2302, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 0) = 0xFF380000
close(3) = 0
stat("/usr/platform/SUNW,Ultra-Enterprise/lib/libc_psr.so.1",
0xFFBEEAE8) = 0
open("/usr/platform/SUNW,Ultra-Enterprise/lib/libc_psr.so.1", O_RDONLY)
= 3
mmap(0xFF390000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF390000
mmap(0xFF3A4CF4, 16384, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF370000
mmap(0xFF370000, 13800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF370000
close(3) = 0
munmap(0xFF390000, 8192) = 0
brk(0x00024C98) = 0
brk(0x00026C98) = 0
stat("/usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2",
0xFFBEE668) = 0
open("/usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2", O_RDONLY)
= 3
mmap(0x00000000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
0xFF390000
mmap(0xFF3A4CF4, 90112, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF350000
mmap(0xFF350000, 15170, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF350000
mmap(0xFF362000, 9134, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 8192) = 0xFF362000
munmap(0xFF354000, 57344) = 0
memcntl(0xFF350000, 7260, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
close(3) = 0
munmap(0xFF390000, 8192) = 0
time() = 1128050489
ioctl(1, TCGETA, 0xFFBEF68C) = 0
ioctl(1, TIOCGWINSZ, 0x0002472A) = 0
brk(0x00026C98) = 0
brk(0x0002EC98) = 0
lstat64(".", 0xFFBEF608) = 0
open64(".", O_RDONLY|O_NDELAY) = 3
fcntl(3, F_SETFD, 0x00000001) = 0
fstat64(3, 0xFFBEF548) = 0
brk(0x0002EC98) = 0
brk(0x00030C98) = 0
getdents64(3, 0x0002EBD0, 1048) = 1040
getdents64(3, 0x0002EBD0, 1048) = 152
getdents64(3, 0x0002EBD0, 1048) = 0
close(3) = 0
ioctl(1, TCGETA, 0xFFBED84C) = 0
200.000000]] batch.c filetry kdata records
write(1, " 2 0 0 . 0 0 0 0 0 0 ] ]".., 64) = 64
300.000000]] batch.h filetry.c kdatatry shellscript
write(1, " 3 0 0 . 0 0 0 0 0 0 ] ]".., 68) = 68
: batch.o find.out main temp
write(1, " : ".., 61) = 61
]] control.c getdata.c main.c try
write(1, " ] ] ".., 60) = 60
a.out control.o getdata.o Makefile try.c
write(1, " a . o u t ".., 62) = 62
allheader.h core inventory.c newtry xyz
write(1, " a l l h e a d e r . h ".., 60) = 60
ass3 fi inventory.h newtry.c
write(1, " a s s 3 ".., 51) = 51
Assg_Make file inventory.o program
write(1, " A s s g _ M a k e ".., 50) = 50
llseek(0, 0, SEEK_CUR) = 79850
_exit(0)
hiren@hobbes:92: truss ls
execve("/usr/bin/ls", 0xFFBEF764, 0xFFBEF76C) argc = 1
resolvepath("/usr/lib/ld.so.1", "/usr/lib/ld.so.1", 1023) = 16
open("/var/ld/ld.config", O_RDONLY) Err#2 ENOENT
stat("./libc.so.1", 0xFFBEED68) Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/lib/libc.so.1", 0xFFBEED68) Err#2
ENOENT
stat("/apps/cadence/ldv41/tools/verilog/lib/libc.so.1", 0xFFBEED68)
Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/vtools/vfault/lib/libc.so.1",
0xFFBEED68) Err#2 ENOENT
stat("/usr/lib/libc.so.1", 0xFFBEED68) = 0
open("/usr/lib/libc.so.1", O_RDONLY) = 3
mmap(0x00000000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
0xFF390000
mmap(0xFF3A4FF4, 802816, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF280000
mmap(0xFF280000, 702392, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF280000
mmap(0xFF33C000, 24772, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 704512) = 0xFF33C000
munmap(0xFF32C000, 65536) = 0
memcntl(0xFF280000, 113528, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
close(3) = 0
stat("./libdl.so.1", 0xFFBEED68) Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/lib/libdl.so.1", 0xFFBEED68) Err#2
ENOENT
stat("/apps/cadence/ldv41/tools/verilog/lib/libdl.so.1", 0xFFBEED68)
Err#2 ENOENT
stat("/apps/cadence/ldv41/tools/vtools/vfault/lib/libdl.so.1",
0xFFBEED68) Err#2 ENOENT
stat("/usr/lib/libdl.so.1", 0xFFBEED68) = 0
open("/usr/lib/libdl.so.1", O_RDONLY) = 3
mmap(0xFF390000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF390000
mmap(0xFF3A4FF4, 8192, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF380000
mmap(0xFF380000, 2302, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 0) = 0xFF380000
close(3) = 0
stat("/usr/platform/SUNW,Ultra-Enterprise/lib/libc_psr.so.1",
0xFFBEEAE8) = 0
open("/usr/platform/SUNW,Ultra-Enterprise/lib/libc_psr.so.1", O_RDONLY)
= 3
mmap(0xFF390000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF390000
mmap(0xFF3A4CF4, 16384, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF370000
mmap(0xFF370000, 13800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF370000
close(3) = 0
munmap(0xFF390000, 8192) = 0
brk(0x00024C98) = 0
brk(0x00026C98) = 0
stat("/usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2",
0xFFBEE668) = 0
open("/usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2", O_RDONLY)
= 3
mmap(0x00000000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =
0xFF390000
mmap(0xFF3A4CF4, 90112, PROT_NONE, MAP_PRIVATE|MAP_NORESERVE|MAP_ANON,
-1, 0) = 0xFF350000
mmap(0xFF350000, 15170, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0xFF350000
mmap(0xFF362000, 9134, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED, 3, 8192) = 0xFF362000
munmap(0xFF354000, 57344) = 0
memcntl(0xFF350000, 7260, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
close(3) = 0
munmap(0xFF390000, 8192) = 0
time() = 1128052012
ioctl(1, TCGETA, 0xFFBEF68C) = 0
ioctl(1, TIOCGWINSZ, 0x0002472A) = 0
brk(0x00026C98) = 0
brk(0x0002EC98) = 0
lstat64(".", 0xFFBEF608) = 0
open64(".", O_RDONLY|O_NDELAY) = 3
fcntl(3, F_SETFD, 0x00000001) = 0
fstat64(3, 0xFFBEF548) = 0
brk(0x0002EC98) = 0
brk(0x00030C98) = 0
getdents64(3, 0x0002EBD0, 1048) = 1040
getdents64(3, 0x0002EBD0, 1048) = 152
getdents64(3, 0x0002EBD0, 1048) = 0
close(3) = 0
ioctl(1, TCGETA, 0xFFBED84C) = 0
200.000000]] batch.c filetry kdata records
write(1, " 2 0 0 . 0 0 0 0 0 0 ] ]".., 64) = 64
300.000000]] batch.h filetry.c kdatatry shellscript
write(1, " 3 0 0 . 0 0 0 0 0 0 ] ]".., 68) = 68
: batch.o find.out main temp
write(1, " : ".., 61) = 61
]] control.c getdata.c main.c try
write(1, " ] ] ".., 60) = 60
a.out control.o getdata.o Makefile try.c
write(1, " a . o u t ".., 62) = 62
allheader.h core inventory.c newtry xyz

 

from above i want to know system calls of ls???????????????

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