diff options
| -rw-r--r-- | nptl/descr.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/nptl/descr.h b/nptl/descr.h index d06abd6ad9..0171576c23 100644 --- a/nptl/descr.h +++ b/nptl/descr.h @@ -34,7 +34,6 @@ #include <bits/types/res_state.h> #include <kernel-features.h> #include <tls-internal-struct.h> -#include <sys/rseq.h> #include <internal-sigset.h> #ifndef TCB_ALIGNMENT @@ -405,14 +404,25 @@ struct pthread /* Used on strsignal. */ struct tls_internal_t tls_state; - /* rseq area registered with the kernel. */ - struct rseq rseq_area; + /* rseq area registered with the kernel. Use a custom definition + here to isolate from kernel struct rseq changes. The + implementation of sched_getcpu needs acccess to the cpu_id field; + the other fields are unused and not included here. */ + union + { + struct + { + uint32_t cpu_id_start; + uint32_t cpu_id; + }; + char pad[32]; /* Original rseq area size. */ + } rseq_area __attribute__ ((aligned (32))); /* Amount of end padding, if any, in this structure. This definition relies on rseq_area being last. */ #define PTHREAD_STRUCT_END_PADDING \ (sizeof (struct pthread) - offsetof (struct pthread, rseq_area) \ - + sizeof (struct rseq)) + + sizeof ((struct pthread) {}.rseq_area)) } __attribute ((aligned (TCB_ALIGNMENT))); static inline bool |