[PATCH 1/5] elf: Fix audit regression

[Adhemerval Zanella]

On 07/07/2021 16:02, Florian Weimer wrote:
> * Adhemerval Zanella via Libc-alpha:
> 
>> diff --git a/elf/Makefile b/elf/Makefile
>> index b1e01d9516..5214196de6 100644
>> --- a/elf/Makefile
>> +++ b/elf/Makefile
> 
>> @@ -361,6 +361,7 @@ modules-names += tst-gnu2-tls1mod
>>  $(objpfx)tst-gnu2-tls1: $(objpfx)tst-gnu2-tls1mod.so
>>  tst-gnu2-tls1mod.so-no-z-defs = yes
>>  CFLAGS-tst-gnu2-tls1mod.c += -mtls-dialect=gnu2
>> +
> 
> Spurious whitespace change.  Or rather, missing CFLAGS for
> tst-auditmod17 to disable stack protector.  I expect the test to fail
> when building glibc with -fstack-protector-all.

I will check building with -fstack-protector-all and remove the 
spurious whitespace.

> 
>> diff --git a/elf/dl-open.c b/elf/dl-open.c
>> index a066f39bd0..66ec9d7ed5 100644
>> --- a/elf/dl-open.c
>> +++ b/elf/dl-open.c
>> @@ -771,7 +771,7 @@ dl_open_worker (void *a)
>>      {
>>        struct link_map *libc_map = GL(dl_ns)[args->nsid].libc_map;
>>  #ifdef SHARED
>> -      bool initial = libc_map->l_ns == LM_ID_BASE;
>> +      bool initial = libc_map != NULL ? libc_map->l_ns == LM_ID_BASE : false;
>>  #else
>>        /* In the static case, there is only one namespace, but it
>>  	 contains a secondary libc (the primary libc is statically
> 
> Looks okay to me.  The previous code was just broken.
> 
> Thanks,
> Florian
>