* Dynamic object or not...
@ 2010-11-02 9:57 Paulo J. Matos
2010-11-02 12:01 ` Alan Modra
0 siblings, 1 reply; 3+ messages in thread
From: Paulo J. Matos @ 2010-11-02 9:57 UTC (permalink / raw)
To: binutils
Hi,
This is a very simple question but I can't find a final answer anywhere
else so here it goes.
If an object is dynamic, then it has a dynamic symbol table and possibly
a dynamic relocation table, otherwise it has a symbol table and a
relocation table. It is not possible for an object to have both a symbol
table and a dynamic symbol table or both relocation tables, etc. Is this
right?
Cheers,
--
PMatos
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Dynamic object or not...
2010-11-02 9:57 Dynamic object or not Paulo J. Matos
@ 2010-11-02 12:01 ` Alan Modra
2010-11-02 12:20 ` Paulo J. Matos
0 siblings, 1 reply; 3+ messages in thread
From: Alan Modra @ 2010-11-02 12:01 UTC (permalink / raw)
To: Paulo J. Matos; +Cc: binutils
On Tue, Nov 02, 2010 at 09:57:38AM +0000, Paulo J. Matos wrote:
> If an object is dynamic, then it has a dynamic symbol table and possibly
> a dynamic relocation table, otherwise it has a symbol table and a
> relocation table. It is not possible for an object to have both a symbol
> table and a dynamic symbol table or both relocation tables, etc. Is this
> right?
No. Many dynamic objects have both a normal and a dynamic symbol
table. There is no reason why they cannot have both types of
relocation too. eg.
$ cat hello.c
#include <stdio.h>
int main (void) { printf ("Hello!\n"); return 0; }
$ gcc -o hello -O2 -Wl,-emit-relocs hello.c
$ readelf -a --wide hello | less
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Dynamic object or not...
2010-11-02 12:01 ` Alan Modra
@ 2010-11-02 12:20 ` Paulo J. Matos
0 siblings, 0 replies; 3+ messages in thread
From: Paulo J. Matos @ 2010-11-02 12:20 UTC (permalink / raw)
To: binutils
Alan Modra <amodra@gmail.com> writes:
>
> No. Many dynamic objects have both a normal and a dynamic symbol
> table. There is no reason why they cannot have both types of
> relocation too. eg.
>
Of course, it makes sense. Thanks for the example!
> $ cat hello.c
> #include <stdio.h>
> int main (void) { printf ("Hello!\n"); return 0; }
> $ gcc -o hello -O2 -Wl,-emit-relocs hello.c
> $ readelf -a --wide hello | less
--
PMatos
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-11-02 9:57 Dynamic object or not Paulo J. Matos
2010-11-02 12:01 ` Alan Modra
2010-11-02 12:20 ` Paulo J. Matos
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