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References: <CANW4E-3YCXihEwozYx7b7UPn9kv8fNYjYAapr5xoAhi6RBT3pw@mail.gmail.com> <1409313190-23768-1-git-send-email-omair.javaid@linaro.org> <CANu=DmiqrbeJAPj1uKyayj1oF0FkxNrpbi5yiw3Px6CR8NqMPA@mail.gmail.com> <CANW4E-2oXSBHrPvyCAzSNpBmokO67vs7Z2tGJg0=jCxYEvKv5Q@mail.gmail.com>
From: Omair Javaid <omair.javaid@linaro.org>
Date: Tue, 14 Oct 2014 12:47:00 -0000
Message-ID: <CANW4E-3LMYAx0HWHbHU10kk=riQQtTcYaizLn77upXxRwADkFg@mail.gmail.com>
Subject: Re: [PATCH 5/7] Support for recording syscall on aarch64-linux
To: Will Newton <will.newton@linaro.org>, Pedro Alves <palves@redhat.com>
Cc: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
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On 19 September 2014 03:27, Omair Javaid <omair.javaid@linaro.org> wrote:
> On 18 September 2014 05:22, Will Newton <will.newton@linaro.org> wrote:
>> On 29 August 2014 04:53, Omair Javaid <omair.javaid@linaro.org> wrote:
>>> Suggestion have been incorporated and updated patch is given below.
>>>
>>> gdb:
>>>
>>> 2014-08-28  Omair Javaid  <omair.javaid@linaro.org>
>>>
>>>         * aarch64-linux-tdep.c (record.h): Include.
>>>         (record-full.h): Include.
>>>         (struct linux_record_tdep aarch64_linux_record_tdep): Declare.
>>>         (aarch64_canonicalize_syscall): New function to translate syscall
>>>         numbers from aarch64 to canonical.
>>>         (aarch64_all_but_pc_registers_record): New function.
>>>         (aarch64_linux_syscall_record): New function.
>>>         (aarch64_linux_init_abi): Update to handle syscall recording.
>>>         * aarch64-linux-tdep.h (aarch64_syscall): New enum.
>>>         * aarch64-tdep.c (aarch64_record_branch_except_sys): Add code to
>>>         handle recording of syscalls.
>>>         * aarch64-tdep.h
>>>         (struct gdbarch_tdep) <aarch64_syscall_record>: Defined.
>>>         * linux-record.h (struct linux_record_tdep): Add two more syscall
>>>         argument fields.
>>>
>>> ---
>>>  gdb/aarch64-linux-tdep.c | 913 +++++++++++++++++++++++++++++++++++++++++++++++
>>>  gdb/aarch64-linux-tdep.h | 266 ++++++++++++++
>>>  gdb/aarch64-tdep.c       |  15 +-
>>>  gdb/aarch64-tdep.h       |   3 +
>>>  gdb/linux-record.h       |   2 +
>>>  5 files changed, 1198 insertions(+), 1 deletion(-)
>>
>> This one looks ok to me now.
>>
>>> diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
>>> index 5ab7b37..82b55b6 100644
>>> --- a/gdb/aarch64-linux-tdep.c
>>> +++ b/gdb/aarch64-linux-tdep.c
>>> @@ -41,6 +41,9 @@
>>>  #include "user-regs.h"
>>>  #include <ctype.h>
>>>
>>> +#include "record-full.h"
>>> +#include "linux-record.h"
>>> +
>>>  /* Signal frame handling.
>>>
>>>        +------------+  ^
>>> @@ -354,6 +357,752 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
>>>    return 1;
>>>  }
>>>
>>> +/* AArch64 process record-replay constructs: syscall, signal etc.  */
>>> +
>>> +struct linux_record_tdep aarch64_linux_record_tdep;
>>> +
>>> +/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
>>> +   linux set of syscall ids into a canonical set of syscall ids used by
>>> +   process record.  */
>>> +
>>> +static enum gdb_syscall
>>> +aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
>>> +{
>>> +  switch (syscall_number) {
>>> +  case aarch64_sys_read:
>>> +    return gdb_sys_read;
>>> +
>>> +  case aarch64_sys_write:
>>> +    return gdb_sys_write;
>>> +
>>> +  case aarch64_sys_open:
>>> +    return gdb_sys_open;
>>> +
>>> +  case aarch64_sys_close:
>>> +    return gdb_sys_close;
>>> +
>>> +  case aarch64_sys_lseek:
>>> +    return gdb_sys_lseek;
>>> +
>>> +  case aarch64_sys_mprotect:
>>> +    return gdb_sys_mprotect;
>>> +
>>> +  case aarch64_sys_munmap:
>>> +    return gdb_sys_munmap;
>>> +
>>> +  case aarch64_sys_brk:
>>> +    return gdb_sys_brk;
>>> +
>>> +  case aarch64_sys_rt_sigaction:
>>> +    return gdb_sys_rt_sigaction;
>>> +
>>> +  case aarch64_sys_rt_sigprocmask:
>>> +    return gdb_sys_rt_sigprocmask;
>>> +
>>> +  case aarch64_sys_rt_sigreturn:
>>> +    return gdb_sys_rt_sigreturn;
>>> +
>>> +  case aarch64_sys_ioctl:
>>> +    return gdb_sys_ioctl;
>>> +
>>> +  case aarch64_sys_pread64:
>>> +    return gdb_sys_pread64;
>>> +
>>> +  case aarch64_sys_pwrite64:
>>> +    return gdb_sys_pwrite64;
>>> +
>>> +  case aarch64_sys_readv:
>>> +    return gdb_sys_readv;
>>> +
>>> +  case aarch64_sys_writev:
>>> +    return gdb_sys_writev;
>>> +
>>> +  case aarch64_sys_sched_yield:
>>> +    return gdb_sys_sched_yield;
>>> +
>>> +  case aarch64_sys_mremap:
>>> +    return gdb_sys_mremap;
>>> +
>>> +  case aarch64_sys_msync:
>>> +    return gdb_sys_msync;
>>> +
>>> +  case aarch64_sys_mincore:
>>> +    return gdb_sys_mincore;
>>> +
>>> +  case aarch64_sys_madvise:
>>> +    return gdb_sys_madvise;
>>> +
>>> +  case aarch64_sys_shmget:
>>> +    return gdb_sys_shmget;
>>> +
>>> +  case aarch64_sys_shmat:
>>> +    return gdb_sys_shmat;
>>> +
>>> +  case aarch64_sys_shmctl:
>>> +    return gdb_sys_shmctl;
>>> +
>>> +  case aarch64_sys_dup:
>>> +    return gdb_sys_dup;
>>> +
>>> +  case aarch64_sys_nanosleep:
>>> +    return gdb_sys_nanosleep;
>>> +
>>> +  case aarch64_sys_getitimer:
>>> +    return gdb_sys_getitimer;
>>> +
>>> +  case aarch64_sys_setitimer:
>>> +    return gdb_sys_setitimer;
>>> +
>>> +  case aarch64_sys_getpid:
>>> +    return gdb_sys_getpid;
>>> +
>>> +  case aarch64_sys_sendfile:
>>> +    return gdb_sys_sendfile;
>>> +
>>> +  case aarch64_sys_socket:
>>> +    return gdb_sys_socket;
>>> +
>>> +  case aarch64_sys_connect:
>>> +    return gdb_sys_connect;
>>> +
>>> +  case aarch64_sys_accept:
>>> +    return gdb_sys_accept;
>>> +
>>> +  case aarch64_sys_sendto:
>>> +    return gdb_sys_sendto;
>>> +
>>> +  case aarch64_sys_recvfrom:
>>> +    return gdb_sys_recvfrom;
>>> +
>>> +  case aarch64_sys_sendmsg:
>>> +    return gdb_sys_sendmsg;
>>> +
>>> +  case aarch64_sys_recvmsg:
>>> +    return gdb_sys_recvmsg;
>>> +
>>> +  case aarch64_sys_shutdown:
>>> +    return gdb_sys_shutdown;
>>> +
>>> +  case aarch64_sys_bind:
>>> +    return gdb_sys_bind;
>>> +
>>> +  case aarch64_sys_listen:
>>> +    return gdb_sys_listen;
>>> +
>>> +  case aarch64_sys_getsockname:
>>> +    return gdb_sys_getsockname;
>>> +
>>> +  case aarch64_sys_getpeername:
>>> +    return gdb_sys_getpeername;
>>> +
>>> +  case aarch64_sys_socketpair:
>>> +    return gdb_sys_socketpair;
>>> +
>>> +  case aarch64_sys_setsockopt:
>>> +    return gdb_sys_setsockopt;
>>> +
>>> +  case aarch64_sys_getsockopt:
>>> +    return gdb_sys_getsockopt;
>>> +
>>> +  case aarch64_sys_clone:
>>> +    return gdb_sys_clone;
>>> +
>>> +  case aarch64_sys_execve:
>>> +    return gdb_sys_execve;
>>> +
>>> +  case aarch64_sys_exit:
>>> +    return gdb_sys_exit;
>>> +
>>> +  case aarch64_sys_wait4:
>>> +    return gdb_sys_wait4;
>>> +
>>> +  case aarch64_sys_kill:
>>> +    return gdb_sys_kill;
>>> +
>>> +  case aarch64_sys_uname:
>>> +    return gdb_sys_uname;
>>> +
>>> +  case aarch64_sys_semget:
>>> +    return gdb_sys_semget;
>>> +
>>> +  case aarch64_sys_semop:
>>> +    return gdb_sys_semop;
>>> +
>>> +  case aarch64_sys_semctl:
>>> +    return gdb_sys_semctl;
>>> +
>>> +  case aarch64_sys_shmdt:
>>> +    return gdb_sys_shmdt;
>>> +
>>> +  case aarch64_sys_msgget:
>>> +    return gdb_sys_msgget;
>>> +
>>> +  case aarch64_sys_msgsnd:
>>> +    return gdb_sys_msgsnd;
>>> +
>>> +  case aarch64_sys_msgrcv:
>>> +    return gdb_sys_msgrcv;
>>> +
>>> +  case aarch64_sys_msgctl:
>>> +    return gdb_sys_msgctl;
>>> +
>>> +  case aarch64_sys_fcntl:
>>> +    return gdb_sys_fcntl;
>>> +
>>> +  case aarch64_sys_flock:
>>> +    return gdb_sys_flock;
>>> +
>>> +  case aarch64_sys_fsync:
>>> +    return gdb_sys_fsync;
>>> +
>>> +  case aarch64_sys_fdatasync:
>>> +    return gdb_sys_fdatasync;
>>> +
>>> +  case aarch64_sys_truncate:
>>> +    return gdb_sys_truncate;
>>> +
>>> +  case aarch64_sys_ftruncate:
>>> +    return gdb_sys_ftruncate;
>>> +
>>> +  case aarch64_sys_getcwd:
>>> +    return gdb_sys_getcwd;
>>> +
>>> +  case aarch64_sys_chdir:
>>> +    return gdb_sys_chdir;
>>> +
>>> +  case aarch64_sys_fchdir:
>>> +    return gdb_sys_fchdir;
>>> +
>>> +  case aarch64_sys_rename:
>>> +    return gdb_sys_rename;
>>> +
>>> +  case aarch64_sys_mkdir:
>>> +    return gdb_sys_mkdir;
>>> +
>>> +  case aarch64_sys_link:
>>> +    return gdb_sys_link;
>>> +
>>> +  case aarch64_sys_unlink:
>>> +    return gdb_sys_unlink;
>>> +
>>> +  case aarch64_sys_symlink:
>>> +    return gdb_sys_symlink;
>>> +
>>> +  case aarch64_sys_readlink:
>>> +    return gdb_sys_readlink;
>>> +
>>> +  case aarch64_sys_fchmodat:
>>> +    return gdb_sys_fchmodat;
>>> +
>>> +  case aarch64_sys_fchmod:
>>> +    return gdb_sys_fchmod;
>>> +
>>> +  case aarch64_sys_fchownat:
>>> +    return gdb_sys_fchownat;
>>> +
>>> +  case aarch64_sys_fchown:
>>> +    return gdb_sys_fchown;
>>> +
>>> +  case aarch64_sys_umask:
>>> +    return gdb_sys_umask;
>>> +
>>> +  case aarch64_sys_gettimeofday:
>>> +    return gdb_sys_gettimeofday;
>>> +
>>> +  case aarch64_sys_getrlimit:
>>> +    return gdb_sys_getrlimit;
>>> +
>>> +  case aarch64_sys_getrusage:
>>> +    return gdb_sys_getrusage;
>>> +
>>> +  case aarch64_sys_sysinfo:
>>> +    return gdb_sys_sysinfo;
>>> +
>>> +  case aarch64_sys_ptrace:
>>> +    return gdb_sys_ptrace;
>>> +
>>> +  case aarch64_sys_getuid:
>>> +    return gdb_sys_getuid;
>>> +
>>> +  case aarch64_sys_syslog:
>>> +    return gdb_sys_syslog;
>>> +
>>> +  case aarch64_sys_getgid:
>>> +    return gdb_sys_getgid;
>>> +
>>> +  case aarch64_sys_setuid:
>>> +    return gdb_sys_setuid;
>>> +
>>> +  case aarch64_sys_setgid:
>>> +    return gdb_sys_setgid;
>>> +
>>> +  case aarch64_sys_geteuid:
>>> +    return gdb_sys_geteuid;
>>> +
>>> +  case aarch64_sys_getegid:
>>> +    return gdb_sys_getegid;
>>> +
>>> +  case aarch64_sys_setpgid:
>>> +    return gdb_sys_setpgid;
>>> +
>>> +  case aarch64_sys_getppid:
>>> +    return gdb_sys_getppid;
>>> +
>>> +  case aarch64_sys_setsid:
>>> +    return gdb_sys_setsid;
>>> +
>>> +  case aarch64_sys_setreuid:
>>> +    return gdb_sys_setreuid;
>>> +
>>> +  case aarch64_sys_setregid:
>>> +    return gdb_sys_setregid;
>>> +
>>> +  case aarch64_sys_getgroups:
>>> +    return gdb_sys_getgroups;
>>> +
>>> +  case aarch64_sys_setgroups:
>>> +    return gdb_sys_setgroups;
>>> +
>>> +  case aarch64_sys_setresuid:
>>> +    return gdb_sys_setresuid;
>>> +
>>> +  case aarch64_sys_getresuid:
>>> +    return gdb_sys_getresuid;
>>> +
>>> +  case aarch64_sys_setresgid:
>>> +    return gdb_sys_setresgid;
>>> +
>>> +  case aarch64_sys_getresgid:
>>> +    return gdb_sys_getresgid;
>>> +
>>> +  case aarch64_sys_getpgid:
>>> +    return gdb_sys_getpgid;
>>> +
>>> +  case aarch64_sys_setfsuid:
>>> +    return gdb_sys_setfsuid;
>>> +
>>> +  case aarch64_sys_setfsgid:
>>> +    return gdb_sys_setfsgid;
>>> +
>>> +  case aarch64_sys_getsid:
>>> +    return gdb_sys_getsid;
>>> +
>>> +  case aarch64_sys_capget:
>>> +    return gdb_sys_capget;
>>> +
>>> +  case aarch64_sys_capset:
>>> +    return gdb_sys_capset;
>>> +
>>> +  case aarch64_sys_rt_sigpending:
>>> +    return gdb_sys_rt_sigpending;
>>> +
>>> +  case aarch64_sys_rt_sigtimedwait:
>>> +    return gdb_sys_rt_sigtimedwait;
>>> +
>>> +  case aarch64_sys_rt_sigqueueinfo:
>>> +    return gdb_sys_rt_sigqueueinfo;
>>> +
>>> +  case aarch64_sys_rt_sigsuspend:
>>> +    return gdb_sys_rt_sigsuspend;
>>> +
>>> +  case aarch64_sys_sigaltstack:
>>> +    return gdb_sys_sigaltstack;
>>> +
>>> +  case aarch64_sys_mknod:
>>> +    return gdb_sys_mknod;
>>> +
>>> +  case aarch64_sys_personality:
>>> +    return gdb_sys_personality;
>>> +
>>> +  case aarch64_sys_statfs:
>>> +    return gdb_sys_statfs;
>>> +
>>> +  case aarch64_sys_fstat:
>>> +    return gdb_sys_fstat;
>>> +
>>> +  case aarch64_sys_fstatfs:
>>> +    return gdb_sys_fstatfs;
>>> +
>>> +  case aarch64_sys_getpriority:
>>> +    return gdb_sys_getpriority;
>>> +
>>> +  case aarch64_sys_setpriority:
>>> +    return gdb_sys_setpriority;
>>> +
>>> +  case aarch64_sys_sched_setparam:
>>> +    return gdb_sys_sched_setparam;
>>> +
>>> +  case aarch64_sys_sched_getparam:
>>> +    return gdb_sys_sched_getparam;
>>> +
>>> +  case aarch64_sys_sched_setscheduler:
>>> +    return gdb_sys_sched_setscheduler;
>>> +
>>> +  case aarch64_sys_sched_getscheduler:
>>> +    return gdb_sys_sched_getscheduler;
>>> +
>>> +  case aarch64_sys_sched_get_priority_max:
>>> +    return gdb_sys_sched_get_priority_max;
>>> +
>>> +  case aarch64_sys_sched_get_priority_min:
>>> +    return gdb_sys_sched_get_priority_min;
>>> +
>>> +  case aarch64_sys_sched_rr_get_interval:
>>> +    return gdb_sys_sched_rr_get_interval;
>>> +
>>> +  case aarch64_sys_mlock:
>>> +    return gdb_sys_mlock;
>>> +
>>> +  case aarch64_sys_munlock:
>>> +    return gdb_sys_munlock;
>>> +
>>> +  case aarch64_sys_mlockall:
>>> +    return gdb_sys_mlockall;
>>> +
>>> +  case aarch64_sys_munlockall:
>>> +    return gdb_sys_munlockall;
>>> +
>>> +  case aarch64_sys_vhangup:
>>> +    return gdb_sys_vhangup;
>>> +
>>> +  case aarch64_sys_prctl:
>>> +    return gdb_sys_prctl;
>>> +
>>> +  case aarch64_sys_adjtimex:
>>> +    return gdb_sys_adjtimex;
>>> +
>>> +  case aarch64_sys_setrlimit:
>>> +    return gdb_sys_setrlimit;
>>> +
>>> +  case aarch64_sys_chroot:
>>> +    return gdb_sys_chroot;
>>> +
>>> +  case aarch64_sys_sync:
>>> +    return gdb_sys_sync;
>>> +
>>> +  case aarch64_sys_acct:
>>> +    return gdb_sys_acct;
>>> +
>>> +  case aarch64_sys_settimeofday:
>>> +    return gdb_sys_settimeofday;
>>> +
>>> +  case aarch64_sys_mount:
>>> +    return gdb_sys_mount;
>>> +
>>> +  case aarch64_sys_swapon:
>>> +    return gdb_sys_swapon;
>>> +
>>> +  case aarch64_sys_swapoff:
>>> +    return gdb_sys_swapoff;
>>> +
>>> +  case aarch64_sys_reboot:
>>> +    return gdb_sys_reboot;
>>> +
>>> +  case aarch64_sys_sethostname:
>>> +    return gdb_sys_sethostname;
>>> +
>>> +  case aarch64_sys_setdomainname:
>>> +    return gdb_sys_setdomainname;
>>> +
>>> +  case aarch64_sys_init_module:
>>> +    return gdb_sys_init_module;
>>> +
>>> +  case aarch64_sys_delete_module:
>>> +    return gdb_sys_delete_module;
>>> +
>>> +  case aarch64_sys_quotactl:
>>> +    return gdb_sys_quotactl;
>>> +
>>> +  case aarch64_sys_nfsservctl:
>>> +    return gdb_sys_nfsservctl;
>>> +
>>> +  case aarch64_sys_gettid:
>>> +    return gdb_sys_gettid;
>>> +
>>> +  case aarch64_sys_readahead:
>>> +    return gdb_sys_readahead;
>>> +
>>> +  case aarch64_sys_setxattr:
>>> +    return gdb_sys_setxattr;
>>> +
>>> +  case aarch64_sys_lsetxattr:
>>> +    return gdb_sys_lsetxattr;
>>> +
>>> +  case aarch64_sys_fsetxattr:
>>> +    return gdb_sys_fsetxattr;
>>> +
>>> +  case aarch64_sys_getxattr:
>>> +    return gdb_sys_getxattr;
>>> +
>>> +  case aarch64_sys_lgetxattr:
>>> +    return gdb_sys_lgetxattr;
>>> +
>>> +  case aarch64_sys_fgetxattr:
>>> +    return gdb_sys_fgetxattr;
>>> +
>>> +  case aarch64_sys_listxattr:
>>> +    return gdb_sys_listxattr;
>>> +
>>> +  case aarch64_sys_llistxattr:
>>> +    return gdb_sys_llistxattr;
>>> +
>>> +  case aarch64_sys_flistxattr:
>>> +    return gdb_sys_flistxattr;
>>> +
>>> +  case aarch64_sys_removexattr:
>>> +    return gdb_sys_removexattr;
>>> +
>>> +  case aarch64_sys_lremovexattr:
>>> +    return gdb_sys_lremovexattr;
>>> +
>>> +  case aarch64_sys_fremovexattr:
>>> +    return gdb_sys_fremovexattr;
>>> +
>>> +  case aarch64_sys_tkill:
>>> +    return gdb_sys_tkill;
>>> +
>>> +  case aarch64_sys_times:
>>> +    return gdb_sys_times;
>>> +
>>> +  case aarch64_sys_futex:
>>> +    return gdb_sys_futex;
>>> +
>>> +  case aarch64_sys_sched_setaffinity:
>>> +    return gdb_sys_sched_setaffinity;
>>> +
>>> +  case aarch64_sys_sched_getaffinity:
>>> +    return gdb_sys_sched_getaffinity;
>>> +
>>> +  case aarch64_sys_io_setup:
>>> +    return gdb_sys_io_setup;
>>> +
>>> +  case aarch64_sys_io_destroy:
>>> +    return gdb_sys_io_destroy;
>>> +
>>> +  case aarch64_sys_io_getevents:
>>> +    return gdb_sys_io_getevents;
>>> +
>>> +  case aarch64_sys_io_submit:
>>> +    return gdb_sys_io_submit;
>>> +
>>> +  case aarch64_sys_io_cancel:
>>> +    return gdb_sys_io_cancel;
>>> +
>>> +  case aarch64_sys_lookup_dcookie:
>>> +    return gdb_sys_lookup_dcookie;
>>> +
>>> +  case aarch64_sys_epoll_create1:
>>> +    return gdb_sys_epoll_create;
>>> +
>>> +  case aarch64_sys_remap_file_pages:
>>> +    return gdb_sys_remap_file_pages;
>>> +
>>> +  case aarch64_sys_getdents64:
>>> +    return gdb_sys_getdents64;
>>> +
>>> +  case aarch64_sys_set_tid_address:
>>> +    return gdb_sys_set_tid_address;
>>> +
>>> +  case aarch64_sys_semtimedop:
>>> +    return gdb_sys_semtimedop;
>>> +
>>> +  case aarch64_sys_fadvise64:
>>> +    return gdb_sys_fadvise64;
>>> +
>>> +  case aarch64_sys_timer_create:
>>> +    return gdb_sys_timer_create;
>>> +
>>> +  case aarch64_sys_timer_settime:
>>> +    return gdb_sys_timer_settime;
>>> +
>>> +  case aarch64_sys_timer_gettime:
>>> +    return gdb_sys_timer_gettime;
>>> +
>>> +  case aarch64_sys_timer_getoverrun:
>>> +    return gdb_sys_timer_getoverrun;
>>> +
>>> +  case aarch64_sys_timer_delete:
>>> +    return gdb_sys_timer_delete;
>>> +
>>> +  case aarch64_sys_clock_settime:
>>> +    return gdb_sys_clock_settime;
>>> +
>>> +  case aarch64_sys_clock_gettime:
>>> +    return gdb_sys_clock_gettime;
>>> +
>>> +  case aarch64_sys_clock_getres:
>>> +    return gdb_sys_clock_getres;
>>> +
>>> +  case aarch64_sys_clock_nanosleep:
>>> +    return gdb_sys_clock_nanosleep;
>>> +
>>> +  case aarch64_sys_exit_group:
>>> +    return gdb_sys_exit_group;
>>> +
>>> +  case aarch64_sys_epoll_pwait:
>>> +    return gdb_sys_epoll_pwait;
>>> +
>>> +  case aarch64_sys_epoll_ctl:
>>> +    return gdb_sys_epoll_ctl;
>>> +
>>> +  case aarch64_sys_tgkill:
>>> +    return gdb_sys_tgkill;
>>> +
>>> +  case aarch64_sys_mbind:
>>> +    return gdb_sys_mbind;
>>> +
>>> +  case aarch64_sys_set_mempolicy:
>>> +    return gdb_sys_set_mempolicy;
>>> +
>>> +  case aarch64_sys_get_mempolicy:
>>> +    return gdb_sys_get_mempolicy;
>>> +
>>> +  case aarch64_sys_mq_open:
>>> +    return gdb_sys_mq_open;
>>> +
>>> +  case aarch64_sys_mq_unlink:
>>> +    return gdb_sys_mq_unlink;
>>> +
>>> +  case aarch64_sys_mq_timedsend:
>>> +    return gdb_sys_mq_timedsend;
>>> +
>>> +  case aarch64_sys_mq_timedreceive:
>>> +    return gdb_sys_mq_timedreceive;
>>> +
>>> +  case aarch64_sys_mq_notify:
>>> +    return gdb_sys_mq_notify;
>>> +
>>> +  case aarch64_sys_mq_getsetattr:
>>> +    return gdb_sys_mq_getsetattr;
>>> +
>>> +  case aarch64_sys_kexec_load:
>>> +    return gdb_sys_kexec_load;
>>> +
>>> +  case aarch64_sys_waitid:
>>> +    return gdb_sys_waitid;
>>> +
>>> +  case aarch64_sys_add_key:
>>> +    return gdb_sys_add_key;
>>> +
>>> +  case aarch64_sys_request_key:
>>> +    return gdb_sys_request_key;
>>> +
>>> +  case aarch64_sys_keyctl:
>>> +    return gdb_sys_keyctl;
>>> +
>>> +  case aarch64_sys_ioprio_set:
>>> +    return gdb_sys_ioprio_set;
>>> +
>>> +  case aarch64_sys_ioprio_get:
>>> +    return gdb_sys_ioprio_get;
>>> +
>>> +  case aarch64_sys_inotify_add_watch:
>>> +    return gdb_sys_inotify_add_watch;
>>> +
>>> +  case aarch64_sys_inotify_rm_watch:
>>> +    return gdb_sys_inotify_rm_watch;
>>> +
>>> +  case aarch64_sys_migrate_pages:
>>> +    return gdb_sys_migrate_pages;
>>> +
>>> +  case aarch64_sys_pselect6:
>>> +    return gdb_sys_pselect6;
>>> +
>>> +  case aarch64_sys_ppoll:
>>> +    return gdb_sys_ppoll;
>>> +
>>> +  case aarch64_sys_unshare:
>>> +    return gdb_sys_unshare;
>>> +
>>> +  case aarch64_sys_set_robust_list:
>>> +    return gdb_sys_set_robust_list;
>>> +
>>> +  case aarch64_sys_get_robust_list:
>>> +    return gdb_sys_get_robust_list;
>>> +
>>> +  case aarch64_sys_splice:
>>> +    return gdb_sys_splice;
>>> +
>>> +  case aarch64_sys_tee:
>>> +    return gdb_sys_tee;
>>> +
>>> +  case aarch64_sys_sync_file_range:
>>> +    return gdb_sys_sync_file_range;
>>> +
>>> +  case aarch64_sys_vmsplice:
>>> +    return gdb_sys_vmsplice;
>>> +
>>> +  case aarch64_sys_move_pages:
>>> +    return gdb_sys_move_pages;
>>> +
>>> +  default:
>>> +    return -1;
>>> +  }
>>> +}
>>> +
>>> +/* Record all registers but PC register for process-record.  */
>>> +
>>> +static int
>>> +aarch64_all_but_pc_registers_record (struct regcache *regcache)
>>> +{
>>> +  int i;
>>> +
>>> +  for (i = 0; i < AARCH64_PC_REGNUM; i++)
>>> +    if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM + i))
>>> +      return -1;
>>> +
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>> +    return -1;
>>> +
>>> +  return 0;
>>> +}
>>> +
>>> +/* Handler for arm system call instruction recording.  */
>>> +
>>> +static int
>>> +aarch64_linux_syscall_record (struct regcache *regcache, unsigned long svc_number)
>>> +{
>>> +  int ret = 0;
>>> +  enum gdb_syscall syscall_gdb;
>>> +
>>> +  printf_unfiltered (_("syscall number %s\n"),
>>> +                       plongest (svc_number));
>>> +  syscall_gdb = aarch64_canonicalize_syscall (svc_number);
>>> +
>>> +  if (syscall_gdb < 0)
>>> +    {
>>> +      printf_unfiltered (_("Process record and replay target doesn't "
>>> +                           "support syscall number %s\n"),
>>> +                           plongest (svc_number));
>>> +      return -1;
>>> +    }
>>> +
>>> +  if (syscall_gdb == gdb_sys_sigreturn
>>> +      || syscall_gdb == gdb_sys_rt_sigreturn)
>>> +   {
>>> +     if (aarch64_all_but_pc_registers_record (regcache))
>>> +       return -1;
>>> +     return 0;
>>> +   }
>>> +
>>> +  ret = record_linux_system_call (syscall_gdb, regcache,
>>> +                                  &aarch64_linux_record_tdep);
>>> +  if (ret != 0)
>>> +    return ret;
>>> +
>>> +  /* Record the return value of the system call.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
>>> +    return -1;
>>> +  /* Record LR.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
>>> +    return -1;
>>> +  /* Record CPSR.  */
>>> +  if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
>>> +    return -1;
>>> +
>>> +  return 0;
>>> +}
>>> +
>>>  static void
>>>  aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>  {
>>> @@ -404,6 +1153,170 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
>>>
>>>    /* Reversible debugging, process record.  */
>>>    set_gdbarch_process_record (gdbarch, aarch64_process_record);
>>> +  /* Syscall record.  */
>>> +  tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
>>> +
>>> +  /* Initialize the aarch64_linux_record_tdep.  */
>>> +  /* These values are the size of the type that will be used in a system
>>> +     call.  They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.size_pointer
>>> +    = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size__old_kernel_stat = 32;
>>> +  aarch64_linux_record_tdep.size_tms = 32;
>>> +  aarch64_linux_record_tdep.size_loff_t = 8;
>>> +  aarch64_linux_record_tdep.size_flock = 32;
>>> +  aarch64_linux_record_tdep.size_oldold_utsname = 45;
>>> +  aarch64_linux_record_tdep.size_ustat = 32;
>>> +  aarch64_linux_record_tdep.size_old_sigaction = 152;
>>> +  aarch64_linux_record_tdep.size_old_sigset_t = 128;
>>> +  aarch64_linux_record_tdep.size_rlimit = 16;
>>> +  aarch64_linux_record_tdep.size_rusage = 144;
>>> +  aarch64_linux_record_tdep.size_timeval = 16;
>>> +  aarch64_linux_record_tdep.size_timezone = 8;
>>> +  aarch64_linux_record_tdep.size_old_gid_t = 2;
>>> +  aarch64_linux_record_tdep.size_old_uid_t = 2;
>>> +  aarch64_linux_record_tdep.size_fd_set = 128;
>>> +  aarch64_linux_record_tdep.size_dirent = 280;
>>> +  aarch64_linux_record_tdep.size_dirent64 = 280;
>>> +  aarch64_linux_record_tdep.size_statfs = 120;
>>> +  aarch64_linux_record_tdep.size_statfs64 = 120;
>>> +  aarch64_linux_record_tdep.size_sockaddr = 16;
>>> +  aarch64_linux_record_tdep.size_int
>>> +    = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_long
>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_ulong
>>> +    = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
>>> +  aarch64_linux_record_tdep.size_msghdr = 56;
>>> +  aarch64_linux_record_tdep.size_itimerval = 32;
>>> +  aarch64_linux_record_tdep.size_stat = 144;
>>> +  aarch64_linux_record_tdep.size_old_utsname = 325;
>>> +  aarch64_linux_record_tdep.size_sysinfo = 112;
>>> +  aarch64_linux_record_tdep.size_msqid_ds = 120;
>>> +  aarch64_linux_record_tdep.size_shmid_ds = 112;
>>> +  aarch64_linux_record_tdep.size_new_utsname = 390;
>>> +  aarch64_linux_record_tdep.size_timex = 208;
>>> +  aarch64_linux_record_tdep.size_mem_dqinfo = 24;
>>> +  aarch64_linux_record_tdep.size_if_dqblk = 72;
>>> +  aarch64_linux_record_tdep.size_fs_quota_stat = 80;
>>> +  aarch64_linux_record_tdep.size_timespec = 16;
>>> +  aarch64_linux_record_tdep.size_pollfd = 8;
>>> +  aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
>>> +  aarch64_linux_record_tdep.size_knfsd_fh = 132;
>>> +  aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
>>> +  aarch64_linux_record_tdep.size_sigaction = 152;
>>> +  aarch64_linux_record_tdep.size_sigset_t = 128;
>>> +  aarch64_linux_record_tdep.size_siginfo_t = 128;
>>> +  aarch64_linux_record_tdep.size_cap_user_data_t = 8;
>>> +  aarch64_linux_record_tdep.size_stack_t = 24;
>>> +  aarch64_linux_record_tdep.size_off_t = 8;
>>> +  aarch64_linux_record_tdep.size_stat64 = 144;
>>> +  aarch64_linux_record_tdep.size_gid_t = 4;
>>> +  aarch64_linux_record_tdep.size_uid_t = 4;
>>> +  aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
>>> +  aarch64_linux_record_tdep.size_flock64 = 32;
>>> +  aarch64_linux_record_tdep.size_user_desc = 16;
>>> +  aarch64_linux_record_tdep.size_io_event = 32;
>>> +  aarch64_linux_record_tdep.size_iocb = 64;
>>> +  aarch64_linux_record_tdep.size_epoll_event = 12;
>>> +  aarch64_linux_record_tdep.size_itimerspec = 32;
>>> +  aarch64_linux_record_tdep.size_mq_attr = 64;
>>> +  aarch64_linux_record_tdep.size_siginfo = 128;
>>> +  aarch64_linux_record_tdep.size_termios = 60;
>>> +  aarch64_linux_record_tdep.size_termios2 = 44;
>>> +  aarch64_linux_record_tdep.size_pid_t = 4;
>>> +  aarch64_linux_record_tdep.size_winsize = 8;
>>> +  aarch64_linux_record_tdep.size_serial_struct = 72;
>>> +  aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
>>> +  aarch64_linux_record_tdep.size_hayes_esp_config = 12;
>>> +  aarch64_linux_record_tdep.size_size_t = 8;
>>> +  aarch64_linux_record_tdep.size_iovec = 16;
>>> +
>>> +  /* These values are the second argument of system call "sys_ioctl".
>>> +     They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
>>> +  aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
>>> +  aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
>>> +  aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
>>> +  aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
>>> +  aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
>>> +  aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
>>> +  aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
>>> +  aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
>>> +  aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
>>> +  aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
>>> +  aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
>>> +  aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
>>> +  aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
>>> +  aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
>>> +
>>> +  /* These values are the second argument of system call "sys_fcntl"
>>> +     and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
>>> +  aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
>>> +  aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
>>> +  aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
>>> +
>>> +  /* The AArch64 syscall calling convention: reg x0-x7 for arguments,
>>> +     reg x8 for syscall number and return value in reg x0.  */
>>> +  aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
>>> +  aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
>>> +  aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
>>> +  aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
>>> +  aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
>>> +  aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
>>> +  aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
>>> +  aarch64_linux_record_tdep.arg8 = AARCH64_X0_REGNUM + 7;
>>>  }
>>>
>>>  /* Provide a prototype to silence -Wmissing-prototypes.  */
>>> diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h
>>> index 2e1de60..1ae3786 100644
>>> --- a/gdb/aarch64-linux-tdep.h
>>> +++ b/gdb/aarch64-linux-tdep.h
>>> @@ -32,3 +32,269 @@
>>>
>>>  extern const struct regset aarch64_linux_gregset;
>>>  extern const struct regset aarch64_linux_fpregset;
>>> +
>>> +/* Enum that defines the AArch64 linux specific syscall identifiers used for
>>> +   process record/replay.  */
>>> +
>>> +enum aarch64_syscall {
>>> +  aarch64_sys_io_setup = 0,
>>> +  aarch64_sys_io_destroy = 1,
>>> +  aarch64_sys_io_submit = 2,
>>> +  aarch64_sys_io_cancel = 3,
>>> +  aarch64_sys_io_getevents = 4,
>>> +  aarch64_sys_setxattr = 5,
>>> +  aarch64_sys_lsetxattr = 6,
>>> +  aarch64_sys_fsetxattr = 7,
>>> +  aarch64_sys_getxattr = 8,
>>> +  aarch64_sys_lgetxattr = 9,
>>> +  aarch64_sys_fgetxattr = 10,
>>> +  aarch64_sys_listxattr = 11,
>>> +  aarch64_sys_llistxattr = 12,
>>> +  aarch64_sys_flistxattr = 13,
>>> +  aarch64_sys_removexattr = 14,
>>> +  aarch64_sys_lremovexattr = 15,
>>> +  aarch64_sys_fremovexattr = 16,
>>> +  aarch64_sys_getcwd = 17,
>>> +  aarch64_sys_lookup_dcookie = 18,
>>> +  aarch64_sys_eventfd2 = 19,
>>> +  aarch64_sys_epoll_create1 = 20,
>>> +  aarch64_sys_epoll_ctl = 21,
>>> +  aarch64_sys_epoll_pwait = 22,
>>> +  aarch64_sys_dup = 23,
>>> +  aarch64_sys_dup3 = 24,
>>> +  aarch64_sys_fcntl = 25,
>>> +  aarch64_sys_inotify_init1 = 26,
>>> +  aarch64_sys_inotify_add_watch = 27,
>>> +  aarch64_sys_inotify_rm_watch = 28,
>>> +  aarch64_sys_ioctl = 29,
>>> +  aarch64_sys_ioprio_set = 30,
>>> +  aarch64_sys_ioprio_get = 31,
>>> +  aarch64_sys_flock = 32,
>>> +  aarch64_sys_mknod = 33,
>>> +  aarch64_sys_mkdir = 34,
>>> +  aarch64_sys_unlink = 35,
>>> +  aarch64_sys_symlink = 36,
>>> +  aarch64_sys_link = 37,
>>> +  aarch64_sys_rename = 38,
>>> +  aarch64_sys_umount2 = 39,
>>> +  aarch64_sys_mount = 40,
>>> +  aarch64_sys_pivot_root = 41,
>>> +  aarch64_sys_nfsservctl = 42,
>>> +  aarch64_sys_statfs = 43,
>>> +  aarch64_sys_fstatfs = 44,
>>> +  aarch64_sys_truncate = 45,
>>> +  aarch64_sys_ftruncate = 46,
>>> +  aarch64_sys_fallocate = 47,
>>> +  aarch64_sys_faccess = 48,
>>> +  aarch64_sys_chdir = 49,
>>> +  aarch64_sys_fchdir = 50,
>>> +  aarch64_sys_chroot = 51,
>>> +  aarch64_sys_fchmod = 52,
>>> +  aarch64_sys_fchmodat = 53,
>>> +  aarch64_sys_fchownat = 54,
>>> +  aarch64_sys_fchown = 55,
>>> +  aarch64_sys_open = 56,
>>> +  aarch64_sys_close = 57,
>>> +  aarch64_sys_vhangup = 58,
>>> +  aarch64_sys_pipe2 = 59,
>>> +  aarch64_sys_quotactl = 60,
>>> +  aarch64_sys_getdents64 = 61,
>>> +  aarch64_sys_lseek = 62,
>>> +  aarch64_sys_read = 63,
>>> +  aarch64_sys_write = 64,
>>> +  aarch64_sys_readv = 65,
>>> +  aarch64_sys_writev = 66,
>>> +  aarch64_sys_pread64 = 67,
>>> +  aarch64_sys_pwrite64 = 68,
>>> +  aarch64_sys_preadv = 69,
>>> +  aarch64_sys_pwritev = 70,
>>> +  aarch64_sys_sendfile = 71,
>>> +  aarch64_sys_pselect6 = 72,
>>> +  aarch64_sys_ppoll = 73,
>>> +  aarch64_sys_signalfd4 = 74,
>>> +  aarch64_sys_vmsplice = 75,
>>> +  aarch64_sys_splice = 76,
>>> +  aarch64_sys_tee = 77,
>>> +  aarch64_sys_readlink = 78,
>>> +  aarch64_sys_fstatat = 79,
>>> +  aarch64_sys_fstat = 80,
>>> +  aarch64_sys_sync = 81,
>>> +  aarch64_sys_fsync = 82,
>>> +  aarch64_sys_fdatasync = 83,
>>> +  aarch64_sys_sync_file_range2 = 84,
>>> +  aarch64_sys_sync_file_range = 84,
>>> +  aarch64_sys_timerfd_create = 85,
>>> +  aarch64_sys_timerfd_settime = 86,
>>> +  aarch64_sys_timerfd_gettime = 87,
>>> +  aarch64_sys_utimensat = 88,
>>> +  aarch64_sys_acct = 89,
>>> +  aarch64_sys_capget = 90,
>>> +  aarch64_sys_capset = 91,
>>> +  aarch64_sys_personality = 92,
>>> +  aarch64_sys_exit = 93,
>>> +  aarch64_sys_exit_group = 94,
>>> +  aarch64_sys_waitid = 95,
>>> +  aarch64_sys_set_tid_address = 96,
>>> +  aarch64_sys_unshare = 97,
>>> +  aarch64_sys_futex = 98,
>>> +  aarch64_sys_set_robust_list = 99,
>>> +  aarch64_sys_get_robust_list = 100,
>>> +  aarch64_sys_nanosleep = 101,
>>> +  aarch64_sys_getitimer = 102,
>>> +  aarch64_sys_setitimer = 103,
>>> +  aarch64_sys_kexec_load = 104,
>>> +  aarch64_sys_init_module = 105,
>>> +  aarch64_sys_delete_module = 106,
>>> +  aarch64_sys_timer_create = 107,
>>> +  aarch64_sys_timer_gettime = 108,
>>> +  aarch64_sys_timer_getoverrun = 109,
>>> +  aarch64_sys_timer_settime = 110,
>>> +  aarch64_sys_timer_delete = 111,
>>> +  aarch64_sys_clock_settime = 112,
>>> +  aarch64_sys_clock_gettime = 113,
>>> +  aarch64_sys_clock_getres = 114,
>>> +  aarch64_sys_clock_nanosleep = 115,
>>> +  aarch64_sys_syslog = 116,
>>> +  aarch64_sys_ptrace = 117,
>>> +  aarch64_sys_sched_setparam = 118,
>>> +  aarch64_sys_sched_setscheduler = 119,
>>> +  aarch64_sys_sched_getscheduler = 120,
>>> +  aarch64_sys_sched_getparam = 121,
>>> +  aarch64_sys_sched_setaffinity = 122,
>>> +  aarch64_sys_sched_getaffinity = 123,
>>> +  aarch64_sys_sched_yield = 124,
>>> +  aarch64_sys_sched_get_priority_max = 125,
>>> +  aarch64_sys_sched_get_priority_min = 126,
>>> +  aarch64_sys_sched_rr_get_interval = 127,
>>> +  aarch64_sys_kill = 129,
>>> +  aarch64_sys_tkill = 130,
>>> +  aarch64_sys_tgkill = 131,
>>> +  aarch64_sys_sigaltstack = 132,
>>> +  aarch64_sys_rt_sigsuspend = 133,
>>> +  aarch64_sys_rt_sigaction = 134,
>>> +  aarch64_sys_rt_sigprocmask = 135,
>>> +  aarch64_sys_rt_sigpending = 136,
>>> +  aarch64_sys_rt_sigtimedwait = 137,
>>> +  aarch64_sys_rt_sigqueueinfo = 138,
>>> +  aarch64_sys_rt_sigreturn = 139,
>>> +  aarch64_sys_setpriority = 140,
>>> +  aarch64_sys_getpriority = 141,
>>> +  aarch64_sys_reboot = 142,
>>> +  aarch64_sys_setregid = 143,
>>> +  aarch64_sys_setgid = 144,
>>> +  aarch64_sys_setreuid = 145,
>>> +  aarch64_sys_setuid = 146,
>>> +  aarch64_sys_setresuid = 147,
>>> +  aarch64_sys_getresuid = 148,
>>> +  aarch64_sys_setresgid = 149,
>>> +  aarch64_sys_getresgid = 150,
>>> +  aarch64_sys_setfsuid = 151,
>>> +  aarch64_sys_setfsgid = 152,
>>> +  aarch64_sys_times = 153,
>>> +  aarch64_sys_setpgid = 154,
>>> +  aarch64_sys_getpgid = 155,
>>> +  aarch64_sys_getsid = 156,
>>> +  aarch64_sys_setsid = 157,
>>> +  aarch64_sys_getgroups = 158,
>>> +  aarch64_sys_setgroups = 159,
>>> +  aarch64_sys_uname = 160,
>>> +  aarch64_sys_sethostname = 161,
>>> +  aarch64_sys_setdomainname = 162,
>>> +  aarch64_sys_getrlimit = 163,
>>> +  aarch64_sys_setrlimit = 164,
>>> +  aarch64_sys_getrusage = 165,
>>> +  aarch64_sys_umask = 166,
>>> +  aarch64_sys_prctl = 167,
>>> +  aarch64_sys_getcpu = 168,
>>> +  aarch64_sys_gettimeofday = 169,
>>> +  aarch64_sys_settimeofday = 170,
>>> +  aarch64_sys_adjtimex = 171,
>>> +  aarch64_sys_getpid = 172,
>>> +  aarch64_sys_getppid = 173,
>>> +  aarch64_sys_getuid = 174,
>>> +  aarch64_sys_geteuid = 175,
>>> +  aarch64_sys_getgid = 176,
>>> +  aarch64_sys_getegid = 177,
>>> +  aarch64_sys_gettid = 178,
>>> +  aarch64_sys_sysinfo = 179,
>>> +  aarch64_sys_mq_open = 180,
>>> +  aarch64_sys_mq_unlink = 181,
>>> +  aarch64_sys_mq_timedsend = 182,
>>> +  aarch64_sys_mq_timedreceive = 183,
>>> +  aarch64_sys_mq_notify = 184,
>>> +  aarch64_sys_mq_getsetattr = 185,
>>> +  aarch64_sys_msgget = 186,
>>> +  aarch64_sys_msgctl = 187,
>>> +  aarch64_sys_msgrcv = 188,
>>> +  aarch64_sys_msgsnd = 189,
>>> +  aarch64_sys_semget = 190,
>>> +  aarch64_sys_semctl = 191,
>>> +  aarch64_sys_semtimedop = 192,
>>> +  aarch64_sys_semop = 193,
>>> +  aarch64_sys_shmget = 194,
>>> +  aarch64_sys_shmctl = 195,
>>> +  aarch64_sys_shmat = 196,
>>> +  aarch64_sys_shmdt = 197,
>>> +  aarch64_sys_socket = 198,
>>> +  aarch64_sys_socketpair = 199,
>>> +  aarch64_sys_bind = 200,
>>> +  aarch64_sys_listen = 201,
>>> +  aarch64_sys_accept = 202,
>>> +  aarch64_sys_connect = 203,
>>> +  aarch64_sys_getsockname = 204,
>>> +  aarch64_sys_getpeername = 205,
>>> +  aarch64_sys_sendto = 206,
>>> +  aarch64_sys_recvfrom = 207,
>>> +  aarch64_sys_setsockopt = 208,
>>> +  aarch64_sys_getsockopt = 209,
>>> +  aarch64_sys_shutdown = 210,
>>> +  aarch64_sys_sendmsg = 211,
>>> +  aarch64_sys_recvmsg = 212,
>>> +  aarch64_sys_readahead = 213,
>>> +  aarch64_sys_brk = 214,
>>> +  aarch64_sys_munmap = 215,
>>> +  aarch64_sys_mremap = 216,
>>> +  aarch64_sys_add_key = 217,
>>> +  aarch64_sys_request_key = 218,
>>> +  aarch64_sys_keyctl = 219,
>>> +  aarch64_sys_clone = 220,
>>> +  aarch64_sys_execve = 221,
>>> +  aarch64_sys_mmap = 222,
>>> +  aarch64_sys_fadvise64 = 223,
>>> +  aarch64_sys_swapon = 224,
>>> +  aarch64_sys_swapoff = 225,
>>> +  aarch64_sys_mprotect = 226,
>>> +  aarch64_sys_msync = 227,
>>> +  aarch64_sys_mlock = 228,
>>> +  aarch64_sys_munlock = 229,
>>> +  aarch64_sys_mlockall = 230,
>>> +  aarch64_sys_munlockall = 231,
>>> +  aarch64_sys_mincore = 232,
>>> +  aarch64_sys_madvise = 233,
>>> +  aarch64_sys_remap_file_pages = 234,
>>> +  aarch64_sys_mbind = 235,
>>> +  aarch64_sys_get_mempolicy = 236,
>>> +  aarch64_sys_set_mempolicy = 237,
>>> +  aarch64_sys_migrate_pages = 238,
>>> +  aarch64_sys_move_pages = 239,
>>> +  aarch64_sys_rt_tgsigqueueinfo = 240,
>>> +  aarch64_sys_perf_event_open = 241,
>>> +  aarch64_sys_accept4 = 242,
>>> +  aarch64_sys_recvmmsg = 243,
>>> +  aarch64_sys_wait4 = 260,
>>> +  aarch64_sys_prlimit64 = 261,
>>> +  aarch64_sys_fanotify_init = 262,
>>> +  aarch64_sys_fanotify_mark = 263,
>>> +  aarch64_sys_name_to_handle_at = 264,
>>> +  aarch64_sys_open_by_handle_at = 265,
>>> +  aarch64_sys_clock_adjtime = 266,
>>> +  aarch64_sys_syncfs = 267,
>>> +  aarch64_sys_setns = 268,
>>> +  aarch64_sys_sendmmsg = 269,
>>> +  aarch64_sys_process_vm_readv = 270,
>>> +  aarch64_sys_process_vm_writev = 271,
>>> +  aarch64_sys_kcmp = 272,
>>> +  aarch64_sys_finit_module = 273,
>>> +  aarch64_sys_sched_setattr = 274,
>>> +  aarch64_sys_sched_getattr = 275,
>>> +};
>>> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
>>> index 0847585..c6da25a 100644
>>> --- a/gdb/aarch64-tdep.c
>>> +++ b/gdb/aarch64-tdep.c
>>> @@ -2941,7 +2941,20 @@ aarch64_record_branch_except_sys (insn_decode_record *aarch64_insn_r)
>>>      {
>>>        /* Exception generation instructions. */
>>>        if (insn_bits24_27 == 0x04)
>>> -        return AARCH64_RECORD_UNSUPPORTED;
>>> +        {
>>> +          if (!bits (aarch64_insn_r->aarch64_insn, 2, 4) &&
>>> +              !bits (aarch64_insn_r->aarch64_insn, 21, 23) &&
>>> +               bits (aarch64_insn_r->aarch64_insn, 0, 1) == 0x01)
>>> +            {
>>> +              ULONGEST svc_number;
>>> +              regcache_raw_read_unsigned (aarch64_insn_r->regcache, 8,
>>> +                                          &svc_number);
>>> +              return tdep->aarch64_syscall_record (aarch64_insn_r->regcache,
>>> +                                                   svc_number);
>>> +            }
>>> +          else
>>> +            return AARCH64_RECORD_UNSUPPORTED;
>>> +        }
>>>        /* System instructions. */
>>>        else if (insn_bits24_27 == 0x05 && insn_bits22_23 == 0x00)
>>>          {
>>> diff --git a/gdb/aarch64-tdep.h b/gdb/aarch64-tdep.h
>>> index 1d74ef8..25751fe 100644
>>> --- a/gdb/aarch64-tdep.h
>>> +++ b/gdb/aarch64-tdep.h
>>> @@ -88,6 +88,9 @@ struct gdbarch_tdep
>>>    struct type *vns_type;
>>>    struct type *vnh_type;
>>>    struct type *vnb_type;
>>> +
>>> +  /* syscall record.  */
>>> +  int (*aarch64_syscall_record) (struct regcache *regcache, unsigned long svc_number);
>>>  };
>>>
>>>  /* AArch64 process record-replay related structures, defines etc.  */
>>> diff --git a/gdb/linux-record.h b/gdb/linux-record.h
>>> index 7b5218e..2649ce5 100644
>>> --- a/gdb/linux-record.h
>>> +++ b/gdb/linux-record.h
>>> @@ -174,6 +174,8 @@ struct linux_record_tdep
>>>    int arg4;
>>>    int arg5;
>>>    int arg6;
>>> +  int arg7;
>>> +  int arg8;
>>>  };
>>>
>>>  /* Enum that defines the gdb-canonical set of Linux syscall identifiers.
>>> --
>>> 1.9.1
>>>
>>
>>
>>
>> --
>> Will Newton
>> Toolchain Working Group, Linaro
>
> Ping! Kindly help me approve this patch.

ping!