Hi,
I'm trying to compile a Position Independent Executable with a TLS but
gcc doesn't generate the expected code (at least, what i expect).
Here's an example:
__thread int test_loc;
void func()
{
test_loc = 2;
}
I compile the object with:
CFLAGS=-nostdinc -nostdlib -fno-builtin \
2008/11/20 Daniel Jacobowitz <[EMAIL PROTECTED]>:
> On Thu, Nov 20, 2008 at 05:28:16PM +0100, Joel Porquet wrote:
>> Gcc is using local-exec tls model instead of global-dynamic. The
>> option -fpie is supposed to act as -fpic though (dixit the manual).
>> Here is the fir
> This is one of the reasons that the generated code can only be used
> in executables.
Okay, I abdicate on this point.
Nevertheless, how could i have a coherent compilation concerning the
TLS management, if my executable needs dynamically libraries ? Aren't
the exec and dynamic models completely
2008/11/21 Daniel Jacobowitz <[EMAIL PROTECTED]>:
> No, there's nothing wrong with this. You can even use multiple models
> in the same executable for the same symbol. The linker will take care
> of everything necessary.
>
> For instance, the executable's TLS block is at a fixed offset from the
>
Dear GCC-list and Daniel,
Lately, I continued working on TLS for mips and a few things bother me.
Firstly, it seems the "-ftls-model" option for gcc is not completely
respected when compiling Position-Independent Executable ("-fpie").
Here is a sample of code for "app.c":
__thread int a = 0;
ext
> Check what symbol is at, or near, 0x4003 + 22368. It's probably
> the GOT plus a constant bias.
It seems there is nothing at this address. Here is the program header:
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR 0x34 0x5ffe
2009/3/12 Daniel Jacobowitz :
> On Thu, Mar 12, 2009 at 02:02:36PM +0100, Joel Porquet wrote:
>> > Check what symbol is at, or near, 0x4003 + 22368. It's probably
>> > the GOT plus a constant bias.
>>
>> It seems there is nothing at this address. Here
2009/3/16 Daniel Jacobowitz :
> On Mon, Mar 16, 2009 at 06:19:01PM +0100, Joel Porquet wrote:
>> 2009/3/12 Daniel Jacobowitz :
>> > On Thu, Mar 12, 2009 at 02:02:36PM +0100, Joel Porquet wrote:
>> >> > Check what symbol is at, or near, 0x4003 + 22368. It&
2009/3/17 Daniel Jacobowitz :
> On Tue, Mar 17, 2009 at 10:26:05AM +0100, Joel Porquet wrote:
>> I don't understand how the runtime loader could know that! As far as I
>> know, the tls model is not embedded in reloc information.
>
> Sure it is. I suggest you go back to
2009/3/17 Daniel Jacobowitz :
> On Tue, Mar 17, 2009 at 04:03:45PM +0100, Joel Porquet wrote:
>> 2009/3/17 Daniel Jacobowitz :
>> > On Tue, Mar 17, 2009 at 10:26:05AM +0100, Joel Porquet wrote:
>> >> I don't understand how the runtime loader could know that! As
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