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| author | Florian Weimer <fweimer@redhat.com> | 2021-05-21 22:35:00 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-05-21 22:35:00 +0200 |
| commit | d03511f48f49fcb9bec4305586c26ab5d0063022 (patch) | |
| tree | 7608e5705c830e8c710e785e3bfc5a90e8986cb4 /elf | |
| parent | 2f69522d460611b1018e15df6c238dda2d8d6609 (diff) | |
| download | glibc-d03511f48f49fcb9bec4305586c26ab5d0063022.tar.gz | |
nptl: Eliminate the __static_tls_size, __static_tls_align_m1 variables
Use the __nptl_tls_static_size_for_stack inline function instead,
and the GLRO (dl_tls_static_align) value directly.
The computation of GLRO (dl_tls_static_align) in
_dl_determine_tlsoffset ensures that the alignment is at least
TLS_TCB_ALIGN, which at least STACK_ALIGN (see allocate_stack).
Therefore, the additional rounding-up step is removed.
ALso move the initialization of the default stack size from
__pthread_initialize_minimal_internal to __pthread_early_init.
This introduces an extra system call during single-threaded startup,
but this simplifies the initialization sequence. No locking is
needed around the writes to __default_pthread_attr because the
process is single-threaded at this point.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-tls.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/elf/dl-tls.c b/elf/dl-tls.c index 91031c2b72..e531ec5913 100644 --- a/elf/dl-tls.c +++ b/elf/dl-tls.c @@ -386,8 +386,9 @@ allocate_dtv (void *result) return result; } - -/* Get size and alignment requirements of the static TLS block. */ +/* Get size and alignment requirements of the static TLS block. This + function is no longer used by glibc itself, but the GCC sanitizers + use it despite the GLIBC_PRIVATE status. */ void _dl_get_tls_static_info (size_t *sizep, size_t *alignp) { |