[PATCH] Linux: Remove rseq support

[Florian Weimer]

* Matheus Castanho:

>> diff --git a/csu/libc-tls.c b/csu/libc-tls.c
>> index 3f1655f264..06e76bd395 100644
>> --- a/csu/libc-tls.c
>> +++ b/csu/libc-tls.c
>> @@ -112,12 +112,6 @@ __libc_setup_tls (void)
>>    size_t tcb_offset;
>>    const ElfW(Phdr) *phdr;
>>  
>> -  /* libc.so with rseq has TLS with 32-byte alignment.  Static dlopen
>> -     requires at least 32-byte alignment as well, otherwise loading
>> -     libc.so will always fail.  */
>> -  if (max_align < 32)
>> -    max_align = 32;
>> -
>>    struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
>>  
>>    /* Look through the TLS segment if there is any.  */
>> diff --git a/elf/dl-tls.c b/elf/dl-tls.c
>> index 772e70d0f6..9a17427047 100644
>> --- a/elf/dl-tls.c
>> +++ b/elf/dl-tls.c
>> @@ -55,7 +55,7 @@
>>     but come on top when computing the number of namespaces.  */
>>  
>>  /* Size of initial-exec TLS in libc.so.  */
>> -#define LIBC_IE_TLS 192
>> +#define LIBC_IE_TLS 160
>
> ... this change?

It should work, given that we removed 32 bytes of TLS data with the
other changes.

Did you observe the failure on powerpc64le?

Thanks,
Florian