diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/rseq-internal.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/rseq-internal.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/sysdeps/unix/sysv/linux/rseq-internal.h b/sysdeps/unix/sysv/linux/rseq-internal.h deleted file mode 100644 index 8f6772ca1d..0000000000 --- a/sysdeps/unix/sysv/linux/rseq-internal.h +++ /dev/null @@ -1,73 +0,0 @@ -/* Restartable Sequences internal API. Linux implementation. - Copyright (C) 2020 Free Software Foundation, Inc. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef RSEQ_INTERNAL_H -#define RSEQ_INTERNAL_H - -#include <sysdep.h> -#include <errno.h> -#include <kernel-features.h> -#include <stdio.h> -#include <sys/rseq.h> - -#ifdef RSEQ_SIG -static inline void -rseq_register_current_thread (void) -{ - int ret; - - if (__rseq_abi.cpu_id != RSEQ_CPU_ID_UNINITIALIZED) - __libc_fatal ("glibc fatal error: " - "rseq already initialized for this thread\n"); - ret = INTERNAL_SYSCALL_CALL (rseq, &__rseq_abi, sizeof (struct rseq), - 0, RSEQ_SIG); - if (INTERNAL_SYSCALL_ERROR_P (ret)) - { - const char *msg = NULL; - - switch (INTERNAL_SYSCALL_ERRNO (ret)) - { - case ENOSYS: /* rseq system call not implemented. */ - case EPERM: /* rseq system call filtered by seccomp. */ - case EACCES: /* rseq system call filtered by seccomp. */ - __rseq_abi.cpu_id = RSEQ_CPU_ID_REGISTRATION_FAILED; - break; - case EBUSY: - msg = "glibc fatal error: rseq already registered for this thread\n"; - break; - case EFAULT: - msg = "glibc fatal error: rseq parameter is an invalid address\n"; - break; - case EINVAL: - msg = "glibc fatal error: rseq parameters are invalid\n"; - break; - default: - msg = "glibc fatal error: unexpected rseq errno\n"; - break; - } - if (msg != NULL) - __libc_fatal (msg); - } -} -#else /* RSEQ_SIG */ -static inline void -rseq_register_current_thread (void) -{ -} -#endif /* RSEQ_SIG */ - -#endif /* rseq-internal.h */ |