1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPI_LINUX_RSEQ_H 20 #define _UAPI_LINUX_RSEQ_H 21 #include <linux/types.h> 22 #include <asm/byteorder.h> 23 enum rseq_cpu_id_state { 24 RSEQ_CPU_ID_UNINITIALIZED = - 1, 25 RSEQ_CPU_ID_REGISTRATION_FAILED = - 2, 26 }; 27 enum rseq_flags { 28 RSEQ_FLAG_UNREGISTER = (1 << 0), 29 }; 30 enum rseq_cs_flags_bit { 31 RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT = 0, 32 RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT = 1, 33 RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT = 2, 34 }; 35 enum rseq_cs_flags { 36 RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT = (1U << RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT), 37 RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL = (1U << RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT), 38 RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE = (1U << RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT), 39 }; 40 struct rseq_cs { 41 __u32 version; 42 __u32 flags; 43 __u64 start_ip; 44 __u64 post_commit_offset; 45 __u64 abort_ip; 46 } __attribute__((aligned(4 * sizeof(__u64)))); 47 struct rseq { 48 __u32 cpu_id_start; 49 __u32 cpu_id; 50 union { 51 __u64 ptr64; 52 #ifdef __LP64__ 53 __u64 ptr; 54 #else 55 struct { 56 #if defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || defined(__BIG_ENDIAN) 57 __u32 padding; 58 __u32 ptr32; 59 #else 60 __u32 ptr32; 61 __u32 padding; 62 #endif 63 } ptr; 64 #endif 65 } rseq_cs; 66 __u32 flags; 67 } __attribute__((aligned(4 * sizeof(__u64)))); 68 #endif 69
