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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-04-21 09:41:59 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-06-30 14:56:21 -0300 |
| commit | a1bdd81664aa681364da368154c48501db249df9 (patch) | |
| tree | 29f01a9ad8bcda2794869dd0555537a2de16fa38 /nptl/descr.h | |
| parent | c22d2021a9f9bdea62398976eea4f0e6ef668b7d (diff) | |
| download | glibc-a1bdd81664aa681364da368154c48501db249df9.tar glibc-a1bdd81664aa681364da368154c48501db249df9.tar.gz glibc-a1bdd81664aa681364da368154c48501db249df9.tar.bz2 glibc-a1bdd81664aa681364da368154c48501db249df9.zip | |
Refactor internal-signals.h
The main drive is to optimize the internal usage and required size
when sigset_t is embedded in other data structures. On Linux, the
current supported signal set requires up to 8 bytes (16 on mips),
was lower than the user defined sigset_t (128 bytes).
A new internal type internal_sigset_t is added, along with the
functions to operate on it similar to the ones for sigset_t. The
internal-signals.h is also refactored to remove unused functions
Besides small stack usage on some functions (posix_spawn, abort)
it lower the struct pthread by about 120 bytes (112 on mips).
Checked on x86_64-linux-gnu.
Reviewed-by: Arjun Shankar <arjun@redhat.com>
Diffstat (limited to 'nptl/descr.h')
| -rw-r--r-- | nptl/descr.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/nptl/descr.h b/nptl/descr.h index b5852632e3..5cacb286f3 100644 --- a/nptl/descr.h +++ b/nptl/descr.h @@ -35,6 +35,7 @@ #include <kernel-features.h> #include <tls-internal-struct.h> #include <sys/rseq.h> +#include <internal-sigset.h> #ifndef TCB_ALIGNMENT # define TCB_ALIGNMENT 32 @@ -387,7 +388,7 @@ struct pthread /* Signal mask for the new thread. Used during thread startup to restore the signal mask. (Threads are launched with all signals masked.) */ - sigset_t sigmask; + internal_sigset_t sigmask; /* Indicates whether is a C11 thread created by thrd_creat. */ bool c11; |