[PATCH v10 3/5] Fix assert during static startup (BZ 33326)

[Florian Weimer]

* Adhemerval Zanella:

> diff --git a/elf/tst-assert-startup-static.c b/elf/tst-assert-startup-static.c
> new file mode 100644
> index 00000000000..66bc5d4913b
> --- /dev/null
> +++ b/elf/tst-assert-startup-static.c

> +/* The __tunables_init is called just before self-relocation and TLS setup,
> +   and the __libc_assert_fail is used internally for assert() calls.  */
> +extern _Noreturn __typeof (__assert_fail) __libc_assert_fail;
> +
> +void __tunables_init (char **env)
> +{
> +/* The assert called by the loader/startup issues __libc_assert_fail instead
> +   of __libc_assert, and __libc_assert_fail does issues the translation
> +   routines (which would require additional handling to be called at this
> +   point, like disable stack protection).  So issue the internal routine
> +   directly, instead of using assert here.  */
> +  __libc_assert_fail ("error", __FILE__, __LINE__, __func__);
> +}

There's some grammar issue here: “does issues the translation”

> diff --git a/sysdeps/generic/dl-mmap.h b/sysdeps/generic/dl-mmap.h
> new file mode 100644
> index 00000000000..f786be0930c
> --- /dev/null
> +++ b/sysdeps/generic/dl-mmap.h

> +/* This mmap call is used to allocate some memory to backup assert() messages
> +   before TLS setup is done (which setup the thread pointer used by some ABIs
> +   to issues syscalls).  */

typos: to back[ ]up
       which set[s ]up
       to [make] syscalls

(happens in other files, too)

sysdeps/unix/sysv/linux/i386/*.h uses t he phrase “to avoid use the
vDSO”.  It should be “to avoid using the vDSO” or “to avoid use of the
vDSO”.

> diff --git a/sysdeps/s390/string-bitops.h b/sysdeps/s390/string-bitops.h
> new file mode 100644
> index 00000000000..5527bcbe454
> --- /dev/null
> +++ b/sysdeps/s390/string-bitops.h
> @@ -0,0 +1,27 @@
> +/* Zero byte detection, define whether to use stdbit.h  s390 version.

Maybe: /* Zero byte detection control.  s390x version.

Thanks,
Florian