hi Philippe Ombredanne
plz find attached example with this maIl
On Sat, Mar 7, 2015 at 7:26 AM, Amish Mittal <[email protected]>
wrote:
> hi Philippe Ombredanne
> i read last year's conversation , and i have created a small prototype
> of json output using -j option in argument list.
> https://github.com/amishasdf12/gsocStrace
>
> currently this works only with -T flag only. plz have a look on it and
> acknowledge me whether i am going in right direction
> so that i can start working on other flag options and if not then
> provide me some suggestion.
>
> thank yoy
> Amish Mittal
>
>
> On Fri, Mar 6, 2015 at 7:35 PM, Philippe Ombredanne <[email protected]>
> wrote:
>
>> On Fri, Mar 6, 2015 at 7:17 AM, Amish Mittal <[email protected]>
>> wrote:
>> > hi
>> > i am Amish Mittal sutdent of IIT Guwahati (INDIA) , i have gone
>> > through source code of strace 4.9 , i am interested in Structured output
>> > project . it is mentioned in the project detail that there has been a
>> > project on this topic during the GSOC 2014, but it is not completed .
>> so can
>> > you guide me how to start and what are your expected results from this
>> > project.
>>
>> Hi Amish:
>> And thank for your interest in strace!
>> The best source of information is this list archive here or on gmane.
>> This includes recent posts on the topic as well as history circa
>> Spring and Summer 2014.
>>
>> --
>> Cordially
>> Philippe Ombredanne
>>
>>
>> ------------------------------------------------------------------------------
>> Dive into the World of Parallel Programming The Go Parallel Website,
>> sponsored
>> by Intel and developed in partnership with Slashdot Media, is your hub
>> for all
>> things parallel software development, from weekly thought leadership
>> blogs to
>> news, videos, case studies, tutorials and more. Take a look and join the
>> conversation now. http://goparallel.sourceforge.net/
>> _______________________________________________
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>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/strace-devel
>>
>
>
json formatting example:
in file test.c
#include<stdio.h>
int main()
{
printf("hello world\n");
return 0;
}
gcc test.c -o test
strace -T -j -olog1 ./test
strace -T -olog2 ./test
in file log1
{
"Function" : execve
"Arguments" : ("./a.out", ["./a.out"], [/* 75 vars */])
"Return" : 0
"TimeSpent" : 0.000466
}
{
"Function" : brk
"Arguments" : (0)
"Return" : 0x116c000
"TimeSpent" : 0.000057
}
{
"Function" : access
"Arguments" : ("/etc/ld.so.nohwcap", F_OK)
"Return" : -1 ENOENT (No such file or directory)
"TimeSpent" : 0.000032
}
{
"Function" : mmap
"Arguments" : (NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0)
"Return" : 0x7fc31b9c3000
"TimeSpent" : 0.000023
}
{
"Function" : access
"Arguments" : ("/etc/ld.so.preload", R_OK)
"Return" : -1 ENOENT (No such file or directory)
"TimeSpent" : 0.000024
}
{
"Function" : open
"Arguments" : ("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC)
"Return" : 3
"TimeSpent" : 0.000053
}
{
"Function" : fstat
"Arguments" : (3, {st_mode=S_IFREG|0644, st_size=95090, ...})
"Return" : 0
"TimeSpent" : 0.000021
}
{
"Function" : mmap
"Arguments" : (NULL, 95090, PROT_READ, MAP_PRIVATE, 3, 0)
"Return" : 0x7fc31b9ab000
"TimeSpent" : 0.000021
}
{
"Function" : close
"Arguments" : (3)
"Return" : 0
"TimeSpent" : 0.000014
}
{
"Function" : access
"Arguments" : ("/etc/ld.so.nohwcap", F_OK)
"Return" : -1 ENOENT (No such file or directory)
"TimeSpent" : 0.000023
}
{
"Function" : open
"Arguments" : ("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC)
"Return" : 3
"TimeSpent" : 0.000028
}
{
"Function" : read
"Arguments" : (3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\37\2\0\0\0\0\0"..., 832)
"Return" : 832
"TimeSpent" : 0.000019
}
{
"Function" : fstat
"Arguments" : (3, {st_mode=S_IFREG|0755, st_size=1840928, ...})
"Return" : 0
"TimeSpent" : 0.000016
}
{
"Function" : mmap
"Arguments" : (NULL, 3949248, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0)
"Return" : 0x7fc31b3de000
"TimeSpent" : 0.000020
}
{
"Function" : mprotect
"Arguments" : (0x7fc31b599000, 2093056, PROT_NONE)
"Return" : 0
"TimeSpent" : 0.000035
}
{
"Function" : mmap
"Arguments" : (0x7fc31b798000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ba000)
"Return" : 0x7fc31b798000
"TimeSpent" : 0.000028
}
{
"Function" : mmap
"Arguments" : (0x7fc31b79e000, 17088, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0)
"Return" : 0x7fc31b79e000
"TimeSpent" : 0.000022
}
{
"Function" : close
"Arguments" : (3)
"Return" : 0
"TimeSpent" : 0.000016
}
{
"Function" : mmap
"Arguments" : (NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0)
"Return" : 0x7fc31b9aa000
"TimeSpent" : 0.000019
}
{
"Function" : mmap
"Arguments" : (NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0)
"Return" : 0x7fc31b9a8000
"TimeSpent" : 0.000018
}
{
"Function" : arch_prctl
"Arguments" : (ARCH_SET_FS, 0x7fc31b9a8740)
"Return" : 0
"TimeSpent" : 0.000015
}
{
"Function" : mprotect
"Arguments" : (0x7fc31b798000, 16384, PROT_READ)
"Return" : 0
"TimeSpent" : 0.000024
}
{
"Function" : mprotect
"Arguments" : (0x600000, 4096, PROT_READ)
"Return" : 0
"TimeSpent" : 0.000019
}
{
"Function" : mprotect
"Arguments" : (0x7fc31b9c5000, 4096, PROT_READ)
"Return" : 0
"TimeSpent" : 0.000021
}
{
"Function" : munmap
"Arguments" : (0x7fc31b9ab000, 95090)
"Return" : 0
"TimeSpent" : 0.000034
}
{
"Function" : fstat
"Arguments" : (1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...})
"Return" : 0
"TimeSpent" : 0.000017
}
{
"Function" : mmap
"Arguments" : (NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0)
"Return" : 0x7fc31b9c2000
"TimeSpent" : 0.000083
}
{
"Function" : write
"Arguments" : (1, "hello world\n", 12)
"Return" : 12
"TimeSpent" : 0.000047
}
{
"Function" : exit_group
"Arguments" : (0) = ?
+++ exited with 0 +++
in file log2
execve("./a.out", ["./a.out"], [/* 75 vars */]) = 0 <0.000259>
brk(0) = 0x13a4000 <0.000014>
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
<0.000016>
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2e351ec000 <0.000014>
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
<0.000014>
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 <0.000019>
fstat(3, {st_mode=S_IFREG|0644, st_size=95090, ...}) = 0 <0.000012>
mmap(NULL, 95090, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2e351d4000 <0.000014>
close(3) = 0 <0.000008>
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
<0.000014>
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 <0.000017>
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\37\2\0\0\0\0\0"...,
832) = 832 <0.000013>
fstat(3, {st_mode=S_IFREG|0755, st_size=1840928, ...}) = 0 <0.000010>
mmap(NULL, 3949248, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f2e34c07000 <0.000012>
mprotect(0x7f2e34dc2000, 2093056, PROT_NONE) = 0 <0.000016>
mmap(0x7f2e34fc1000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ba000) = 0x7f2e34fc1000 <0.000014>
mmap(0x7f2e34fc7000, 17088, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f2e34fc7000 <0.000012>
close(3) = 0 <0.000008>
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2e351d3000 <0.000011>
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2e351d1000 <0.000010>
arch_prctl(ARCH_SET_FS, 0x7f2e351d1740) = 0 <0.000008>
mprotect(0x7f2e34fc1000, 16384, PROT_READ) = 0 <0.000013>
mprotect(0x600000, 4096, PROT_READ) = 0 <0.000011>
mprotect(0x7f2e351ee000, 4096, PROT_READ) = 0 <0.000011>
munmap(0x7f2e351d4000, 95090) = 0 <0.000019>
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0 <0.000010>
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f2e351eb000 <0.000011>
write(1, "hello world\n", 12) = 12 <0.000028>
exit_group(0) = ?
+++ exited with 0 +++
------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the
conversation now. http://goparallel.sourceforge.net/
_______________________________________________
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