[parisc-linux] unaligned access using bash on glibc 2.5

[Aurelien Jarno]

John David Anglin a écrit :
>> On Wed, May 02, 2007 at 11:38:51AM +0200, Aurelien Jarno wrote:
>>> Please find the reduced testcase below. When the value is assigned to
>>> __libc_errno, the value of r19 has been overrided by the call to free().
>>>
>> And a smaller one:
>>
>>
>> extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));
> 
> This is a bug in __attribute__ ((tls_model ("initial-exec"))).  It
> doesn't express that it uses r19.  As a result, GCC is free to optimize
> the save and restore of r19 across the call to free away.
> 
> The same is true of the asm.

What would be the correct way to express that?

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