In article <mailman.1362.1382460759.18130.python-l...@python.org>,
Chris Kaynor <ckay...@zindagigames.com> wrote:
>-=-=-=-=-=-
<SNIP>
>Global:
>
>int arr[10];
>int main()
>{
> int i;
> for (i = 0; i < 10; i++) {
> printf("arr[%d] = %d\n", i, arr[i]);
> }
> printf("\n");
> return 0;
>}
>
>As for a reference:
>http://stackoverflow.com/questions/1831290/static-variable-initialization
> and
>http://stackoverflow.com/questions/3373108/why-are-static-variables-auto-initialized-to-zero,
>both of which then reference the C++ standard.
Or even better:
#include<stdio.h>
int arr[] = {1,2,3,4,5,6,7,8};
int main()
{
int i;
for (i = 0; i < sizeof(arr)/sizeof(int); i++) {
printf("arr[%d] = %d\n", i, arr[i]);
}
printf("\n");
return 0;
}
Output:
"
albert@cherry:/tmp$ a.out
arr[0] = 1
arr[1] = 2
arr[2] = 3
arr[3] = 4
arr[4] = 5
arr[5] = 6
arr[6] = 7
arr[7] = 8
"
This is the output of
objdump -x a.out (after stripping)
"
a.out: file format elf64-x86-64
a.out
architecture: i386:x86-64, flags 0x00000112:
EXEC_P, HAS_SYMS, D_PAGED
start address 0x0000000000400450
....
Lots of segments.
23 .got.plt 00000030 0000000000600900 0000000000600900 00000900 2**3
CONTENTS, ALLOC, LOAD, DATA
24 .data 00000040 0000000000600940 0000000000600940 00000940 2**5
CONTENTS, ALLOC, LOAD, DATA
25 .bss 00000010 0000000000600980 0000000000600980 00000980 2**3
ALLOC
26 .comment 0000001c 0000000000000000 0000000000000000 00000980 2**0
CONTENTS, READONLY
SYMBOL TABLE:
no symbols
"
Look at .data It is CONTENTS LOAD DATA, i.e. it has content
in the executable binary and this is loaded as such into memory
at startup.
You can also ask to dump the content of the sections:
objdump -s a.out
a.out: file format elf64-x86-64
...
Contents of section .data:
600940 00000000 00000000 00000000 00000000 ................
600950 00000000 00000000 00000000 00000000 ................
600960 01000000 02000000 03000000 04000000 ................
600970 05000000 06000000 07000000 08000000 ................
Contents of section .comment:
0000 4743433a 20284465 6269616e 20342e34 GCC: (Debian 4.4
0010 2e352d38 2920342e 342e3500 .5-8) 4.4.5.
>
>
>>
>> --
>> Steven
>> --
>> https://mail.python.org/mailman/listinfo/python-list
>>
>
>-=-=-=-=-=-
>[Alternative: text/html]
>-=-=-=-=-=-
--
Albert van der Horst, UTRECHT,THE NETHERLANDS
Economic growth -- being exponential -- ultimately falters.
albert@spe&ar&c.xs4all.nl &=n http://home.hccnet.nl/a.w.m.van.der.horst
--
https://mail.python.org/mailman/listinfo/python-list
