From: Vineet Gupta Date: Fri, 16 Aug 2013 07:17:06 +0000 (+0530) Subject: Add support for ARC Cores from Synopsys X-Git-Tag: v4.9~181 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7daacbbbe7349677476a3d2fbf174dcf86f171be;p=strace Add support for ARC Cores from Synopsys Take #2 on mainlining strace support for ARC (last one was 4.6 based back in March 2011), see http://sourceforge.net/p/strace/mailman/message/27210168/ The syscall ABI is asm-generic/unistd.h based (so no legacy syscalls), hence very similar to metag port. test/* all seem to work well. * linux/arc/ioctlent.h.in: New file. * linux/arc/syscallent.h: Likewise. * Makefile.am (EXTRA_DIST): Add linux/arc/ioctlent.h.in and linux/arc/syscallent.h. * configure.ac: Add ARC to the list of supported architectures. * defs.h: Add ARC support. * process.c (struct_user_offsets): Likewise. * signal.c (sys_sigreturn): Likewise. * syscall.c (print_pc, get_regset, get_regs, get_scno, get_syscall_args, get_syscall_result, get_error): Likewise. * util.c (change_syscall): Likewise. Signed-off-by: Vineet Gupta Acked-by: Mike Frysinger --- diff --git a/Makefile.am b/Makefile.am index 9d611f39..9187fa0d 100644 --- a/Makefile.am +++ b/Makefile.am @@ -82,6 +82,8 @@ EXTRA_DIST = \ linux/alpha/ioctlent.h.in \ linux/alpha/signalent.h \ linux/alpha/syscallent.h \ + linux/arc/ioctlent.h.in \ + linux/arc/syscallent.h \ linux/arm/ioctlent.h.in \ linux/arm/syscallent.h \ linux/avr32/ioctlent.h.in \ diff --git a/configure.ac b/configure.ac index b3b62e88..f19e4f22 100644 --- a/configure.ac +++ b/configure.ac @@ -74,6 +74,10 @@ avr32*) arch=avr32 AC_DEFINE([AVR32], 1, [Define for the AVR32 architecture.]) ;; +arc*) + arch=arc + AC_DEFINE([ARC], 1, [Define for the ARC architecture.]) + ;; s390) arch=s390 AC_DEFINE([S390], 1, [Define for the S390 architecture.]) diff --git a/defs.h b/defs.h index 964636ba..f5dd6d5e 100644 --- a/defs.h +++ b/defs.h @@ -164,6 +164,7 @@ extern char *stpcpy(char *dst, const char *src); || defined(METAG) \ || defined(TILE) \ || defined(XTENSA) \ + || defined(ARC) \ ) && defined(__GLIBC__) # include #else @@ -611,6 +612,7 @@ extern void call_summary(FILE *); || defined(TILE) \ || defined(OR1K) \ || defined(METAG) \ + || defined(ARC) \ || defined(POWERPC) extern long get_regs_error; # define clear_regs() (get_regs_error = -1) diff --git a/linux/arc/ioctlent.h.in b/linux/arc/ioctlent.h.in new file mode 100644 index 00000000..52ac99ba --- /dev/null +++ b/linux/arc/ioctlent.h.in @@ -0,0 +1 @@ +#include "../i386/ioctlent.h.in" diff --git a/linux/arc/syscallent.h b/linux/arc/syscallent.h new file mode 100644 index 00000000..fd3171a3 --- /dev/null +++ b/linux/arc/syscallent.h @@ -0,0 +1,264 @@ + { 2, 0, sys_io_setup, "io_setup" }, /* 0 */ + { 1, 0, sys_io_destroy, "io_destroy" }, /* 1 */ + { 3, 0, sys_io_submit, "io_submit" }, /* 2 */ + { 3, 0, sys_io_cancel, "io_cancel" }, /* 3 */ + { 5, 0, sys_io_getevents, "io_getevents" }, /* 4 */ + { 5, TF, sys_setxattr, "setxattr" }, /* 5 */ + { 5, TF, sys_setxattr, "lsetxattr" }, /* 6 */ + { 5, TD, sys_fsetxattr, "fsetxattr" }, /* 7 */ + { 4, TF, sys_getxattr, "getxattr" }, /* 8 */ + { 4, TF, sys_getxattr, "lgetxattr" }, /* 9 */ + { 4, TD, sys_fgetxattr, "fgetxattr" }, /* 10 */ + { 3, TF, sys_listxattr, "listxattr" }, /* 11 */ + { 3, TF, sys_listxattr, "llistxattr" }, /* 12 */ + { 3, TD, sys_flistxattr, "flistxattr" }, /* 13 */ + { 2, TF, sys_removexattr, "removexattr" }, /* 14 */ + { 2, TF, sys_removexattr, "lremovexattr" }, /* 15 */ + { 2, TD, sys_fremovexattr, "fremovexattr" }, /* 16 */ + { 2, TF, sys_getcwd, "getcwd" }, /* 17 */ + { 4, 0, sys_lookup_dcookie, "lookup_dcookie" }, /* 18 */ + { 2, TD, sys_eventfd2, "eventfd2" }, /* 19 */ + { 1, TD, sys_epoll_create1, "epoll_create1" }, /* 20 */ + { 4, TD, sys_epoll_ctl, "epoll_ctl" }, /* 21 */ + { 6, TD, sys_epoll_pwait, "epoll_pwait" }, /* 22 */ + { 1, TD, sys_dup, "dup" }, /* 23 */ + { 3, TD, sys_dup3, "dup3" }, /* 24 */ + { 3, TD, sys_fcntl, "fcntl64" }, /* 25 */ + { 1, TD, sys_inotify_init1, "inotify_init1" }, /* 26 */ + { 3, TD, sys_inotify_add_watch, "inotify_add_watch" }, /* 27 */ + { 2, TD, sys_inotify_rm_watch, "inotify_rm_watch" }, /* 28 */ + { 3, TD, sys_ioctl, "ioctl" }, /* 29 */ + { 3, 0, sys_ioprio_set, "ioprio_set" }, /* 30 */ + { 2, 0, sys_ioprio_get, "ioprio_get" }, /* 31 */ + { 2, TD, sys_flock, "flock" }, /* 32 */ + { 4, TD|TF, sys_mknodat, "mknodat" }, /* 33 */ + { 3, TD|TF, sys_mkdirat, "mkdirat" }, /* 34 */ + { 3, TD|TF, sys_unlinkat, "unlinkat" }, /* 35 */ + { 3, TD|TF, sys_symlinkat, "symlinkat" }, /* 36 */ + { 5, TD|TF, sys_linkat, "linkat" }, /* 37 */ + { 4, TD|TF, sys_renameat, "renameat" }, /* 38 */ + { 2, TF, sys_umount2, "umount2" }, /* 39 */ + { 5, TF, sys_mount, "mount" }, /* 40 */ + { 2, TF, sys_pivotroot, "pivot_root" }, /* 41 */ + { }, /* 42 */ + { 3, TF, sys_statfs64, "statfs64" }, /* 43 */ + { 3, TD, sys_fstatfs64, "fstatfs64" }, /* 44 */ + { 3, TF, sys_truncate64, "truncate64" }, /* 45 */ + { 3, TD, sys_ftruncate64, "ftruncate64" }, /* 46 */ + { 6, TD, sys_fallocate, "fallocate" }, /* 47 */ + { 3, TD|TF, sys_faccessat, "faccessat" }, /* 48 */ + { 1, TF, sys_chdir, "chdir" }, /* 49 */ + { 1, TD, sys_fchdir, "fchdir" }, /* 50 */ + { 1, TF, sys_chroot, "chroot" }, /* 51 */ + { 2, TD, sys_fchmod, "fchmod" }, /* 52 */ + { 3, TD|TF, sys_fchmodat, "fchmodat" }, /* 53 */ + { 5, TD|TF, sys_fchownat, "fchownat" }, /* 54 */ + { 3, TD, sys_fchown, "fchown" }, /* 55 */ + { 4, TD|TF, sys_openat, "openat" }, /* 56 */ + { 1, TD, sys_close, "close" }, /* 57 */ + { 0, 0, sys_vhangup, "vhangup" }, /* 58 */ + { 2, TD, sys_pipe2, "pipe2" }, /* 59 */ + { 4, TF, sys_quotactl, "quotactl" }, /* 60 */ + { 3, TD, sys_getdents64, "getdents64" }, /* 61 */ + { 5, TD, sys_llseek, "_llseek" }, /* 62 */ + { 3, TD, sys_read, "read" }, /* 63 */ + { 3, TD, sys_write, "write" }, /* 64 */ + { 3, TD, sys_readv, "readv" }, /* 65 */ + { 3, TD, sys_writev, "writev" }, /* 66 */ + { 5, TD, sys_pread, "pread64" }, /* 67 */ + { 5, TD, sys_pwrite, "pwrite64" }, /* 68 */ + { 5, TD, sys_preadv, "preadv" }, /* 69 */ + { 5, TD, sys_pwritev, "pwritev" }, /* 70 */ + { 4, TD|TN, sys_sendfile64, "sendfile" }, /* 71 */ + { 6, TD, sys_pselect6, "pselect6" }, /* 72 */ + { 5, TD, sys_ppoll, "ppoll" }, /* 73 */ + { 4, TD|TS, sys_signalfd4, "signalfd4" }, /* 74 */ + { 4, TD, sys_vmsplice, "vmsplice" }, /* 75 */ + { 6, TD, sys_splice, "splice" }, /* 76 */ + { 4, TD, sys_tee, "tee" }, /* 77 */ + { 4, TD|TF, sys_readlinkat, "readlinkat" }, /* 78 */ + { 4, TD|TF, sys_newfstatat, "fstatat64" }, /* 79 */ + { 2, TD, sys_fstat64, "fstat64" }, /* 80 */ + { 0, 0, sys_sync, "sync" }, /* 81 */ + { 1, TD, sys_fsync, "fsync" }, /* 82 */ + { 1, TD, sys_fdatasync, "fdatasync" }, /* 83 */ + { 6, TD, sys_sync_file_range, "sync_file_range" }, /* 84 */ + { 2, TD, sys_timerfd_create, "timerfd_create" }, /* 85 */ + { 4, TD, sys_timerfd_settime, "timerfd_settime" }, /* 86 */ + { 2, TD, sys_timerfd_gettime, "timerfd_gettime" }, /* 87 */ + { 4, TD|TF, sys_utimensat, "utimensat" }, /* 88 */ + { 1, TF, sys_acct, "acct" }, /* 89 */ + { 2, 0, sys_capget, "capget" }, /* 90 */ + { 2, 0, sys_capset, "capset" }, /* 91 */ + { 1, 0, sys_personality, "personality" }, /* 92 */ + { 1, TP, sys_exit, "exit" }, /* 93 */ + { 1, TP, sys_exit, "exit_group" }, /* 94 */ + { 5, TP, sys_waitid, "waitid" }, /* 95 */ + { 1, 0, sys_set_tid_address, "set_tid_address" }, /* 96 */ + { 1, TP, sys_unshare, "unshare" }, /* 97 */ + { 6, 0, sys_futex, "futex" }, /* 98 */ + { 2, 0, sys_set_robust_list, "set_robust_list" }, /* 99 */ + { 3, 0, sys_get_robust_list, "get_robust_list" }, /* 100 */ + { 2, 0, sys_nanosleep, "nanosleep" }, /* 101 */ + { 2, 0, sys_getitimer, "getitimer" }, /* 102 */ + { 3, 0, sys_setitimer, "setitimer" }, /* 103 */ + { 4, 0, sys_kexec_load, "kexec_load" }, /* 104 */ + { 3, 0, sys_init_module, "init_module" }, /* 105 */ + { 2, 0, sys_delete_module, "delete_module" }, /* 106 */ + { 3, 0, sys_timer_create, "timer_create" }, /* 107 */ + { 2, 0, sys_timer_gettime, "timer_gettime" }, /* 108 */ + { 1, 0, sys_timer_getoverrun, "timer_getoverrun" }, /* 109 */ + { 4, 0, sys_timer_settime, "timer_settime" }, /* 110 */ + { 1, 0, sys_timer_delete, "timer_delete" }, /* 111 */ + { 2, 0, sys_clock_settime, "clock_settime" }, /* 112 */ + { 2, 0, sys_clock_gettime, "clock_gettime" }, /* 113 */ + { 2, 0, sys_clock_getres, "clock_getres" }, /* 114 */ + { 4, 0, sys_clock_nanosleep, "clock_nanosleep" }, /* 115 */ + { 3, 0, sys_syslog, "syslog" }, /* 116 */ + { 4, 0, sys_ptrace, "ptrace" }, /* 117 */ + { 2, 0, sys_sched_setparam, "sched_setparam" }, /* 118 */ + { 3, 0, sys_sched_setscheduler, "sched_setscheduler" }, /* 119 */ + { 1, 0, sys_sched_getscheduler, "sched_getscheduler" }, /* 120 */ + { 2, 0, sys_sched_getparam, "sched_getparam" }, /* 121 */ + { 3, 0, sys_sched_setaffinity, "sched_setaffinity" }, /* 122 */ + { 3, 0, sys_sched_getaffinity, "sched_getaffinity" }, /* 123 */ + { 0, 0, sys_sched_yield, "sched_yield" }, /* 124 */ + { 1, 0, sys_sched_get_priority_max, "sched_get_priority_max"}, /* 125 */ + { 1, 0, sys_sched_get_priority_min, "sched_get_priority_min"}, /* 126 */ + { 2, 0, sys_sched_rr_get_interval, "sched_rr_get_interval" }, /* 127 */ + { 0, 0, sys_restart_syscall, "restart_syscall" }, /* 128 */ + { 2, TS, sys_kill, "kill" }, /* 129 */ + { 2, TS, sys_kill, "tkill" }, /* 130 */ + { 3, TS, sys_tgkill, "tgkill" }, /* 131 */ + { 2, TS, sys_sigaltstack, "sigaltstack" }, /* 132 */ + { 2, TS, sys_rt_sigsuspend, "rt_sigsuspend" }, /* 133 */ + { 4, TS, sys_rt_sigaction, "rt_sigaction" }, /* 134 */ + { 4, TS, sys_rt_sigprocmask, "rt_sigprocmask" }, /* 135 */ + { 2, TS, sys_rt_sigpending, "rt_sigpending" }, /* 136 */ + { 4, TS, sys_rt_sigtimedwait, "rt_sigtimedwait" }, /* 137 */ + { 3, TS, sys_rt_sigqueueinfo, "rt_sigqueueinfo" }, /* 138 */ + { 0, TS, sys_rt_sigreturn, "rt_sigreturn" }, /* 139 */ + { 3, 0, sys_setpriority, "setpriority" }, /* 140 */ + { 2, 0, sys_getpriority, "getpriority" }, /* 141 */ + { 4, 0, sys_reboot, "reboot" }, /* 142 */ + { 2, 0, sys_setregid, "setregid" }, /* 143 */ + { 1, 0, sys_setgid, "setgid" }, /* 144 */ + { 2, 0, sys_setreuid, "setreuid" }, /* 145 */ + { 1, 0, sys_setuid, "setuid" }, /* 146 */ + { 3, 0, sys_setresuid, "setresuid" }, /* 147 */ + { 3, 0, sys_getresuid, "getresuid" }, /* 148 */ + { 3, 0, sys_setresgid, "setresgid" }, /* 149 */ + { 3, 0, sys_getresgid, "getresgid" }, /* 150 */ + { 1, NF, sys_setfsuid, "setfsuid" }, /* 151 */ + { 1, NF, sys_setfsgid, "setfsgid" }, /* 152 */ + { 1, 0, sys_times, "times" }, /* 153 */ + { 2, 0, sys_setpgid, "setpgid" }, /* 154 */ + { 1, 0, sys_getpgid, "getpgid" }, /* 155 */ + { 1, 0, sys_getsid, "getsid" }, /* 156 */ + { 0, 0, sys_setsid, "setsid" }, /* 157 */ + { 2, 0, sys_getgroups, "getgroups" }, /* 158 */ + { 2, 0, sys_setgroups, "setgroups" }, /* 159 */ + { 1, 0, sys_uname, "uname" }, /* 160 */ + { 2, 0, sys_sethostname, "sethostname" }, /* 161 */ + { 2, 0, sys_setdomainname, "setdomainname" }, /* 162 */ + { 2, 0, sys_getrlimit, "getrlimit" }, /* 163 */ + { 2, 0, sys_setrlimit, "setrlimit" }, /* 164 */ + { 2, 0, sys_getrusage, "getrusage" }, /* 165 */ + { 1, 0, sys_umask, "umask" }, /* 166 */ + { 5, 0, sys_prctl, "prctl" }, /* 167 */ + { 3, 0, sys_getcpu, "getcpu" }, /* 168 */ + { 2, 0, sys_gettimeofday, "gettimeofday" }, /* 169 */ + { 2, 0, sys_settimeofday, "settimeofday" }, /* 170 */ + { 1, 0, sys_adjtimex, "adjtimex" }, /* 171 */ + { 0, 0, sys_getpid, "getpid" }, /* 172 */ + { 0, 0, sys_getppid, "getppid" }, /* 173 */ + { 0, NF, sys_getuid, "getuid" }, /* 174 */ + { 0, NF, sys_geteuid, "geteuid" }, /* 175 */ + { 0, NF, sys_getgid, "getgid" }, /* 176 */ + { 0, NF, sys_getegid, "getegid" }, /* 177 */ + { 0, 0, sys_gettid, "gettid" }, /* 178 */ + { 1, 0, sys_sysinfo, "sysinfo" }, /* 179 */ + { 4, 0, sys_mq_open, "mq_open" }, /* 180 */ + { 1, 0, sys_mq_unlink, "mq_unlink" }, /* 181 */ + { 5, 0, sys_mq_timedsend, "mq_timedsend" }, /* 182 */ + { 5, 0, sys_mq_timedreceive, "mq_timedreceive" }, /* 183 */ + { 2, 0, sys_mq_notify, "mq_notify" }, /* 184 */ + { 3, 0, sys_mq_getsetattr, "mq_getsetattr" }, /* 185 */ + { 2, TI, sys_msgget, "msgget" }, /* 186 */ + { 3, TI, sys_msgctl, "msgctl" }, /* 187 */ + { 5, TI, sys_msgrcv, "msgrcv" }, /* 188 */ + { 4, TI, sys_msgsnd, "msgsnd" }, /* 189 */ + { 3, TI, sys_semget, "semget" }, /* 190 */ + { 4, TI, sys_semctl, "semctl" }, /* 191 */ + { 4, TI, sys_semtimedop, "semtimedop" }, /* 192 */ + { 3, TI, sys_semop, "semop" }, /* 193 */ + { 3, TI, sys_shmget, "shmget" }, /* 194 */ + { 3, TI, sys_shmctl, "shmctl" }, /* 195 */ + { 3, TI, sys_shmat, "shmat" }, /* 196 */ + { 1, TI, sys_shmdt, "shmdt" }, /* 197 */ + { 3, TN, sys_socket, "socket" }, /* 198 */ + { 4, TN, sys_socketpair, "socketpair" }, /* 199 */ + { 3, TN, sys_bind, "bind" }, /* 200 */ + { 2, TN, sys_listen, "listen" }, /* 201 */ + { 3, TN, sys_accept, "accept" }, /* 202 */ + { 3, TN, sys_connect, "connect" }, /* 203 */ + { 3, TN, sys_getsockname, "getsockname" }, /* 204 */ + { 3, TN, sys_getpeername, "getpeername" }, /* 205 */ + { 6, TN, sys_sendto, "sendto" }, /* 206 */ + { 6, TN, sys_recvfrom, "recvfrom" }, /* 207 */ + { 5, TN, sys_setsockopt, "setsockopt" }, /* 208 */ + { 5, TN, sys_getsockopt, "getsockopt" }, /* 209 */ + { 2, TN, sys_shutdown, "shutdown" }, /* 210 */ + { 3, TN, sys_sendmsg, "sendmsg" }, /* 211 */ + { 3, TN, sys_recvmsg, "recvmsg" }, /* 212 */ + { 4, TD, sys_readahead, "readahead" }, /* 213 */ + { 1, TM, sys_brk, "brk" }, /* 214 */ + { 2, TM, sys_munmap, "munmap" }, /* 215 */ + { 5, TM, sys_mremap, "mremap" }, /* 216 */ + { 5, 0, sys_add_key, "add_key" }, /* 217 */ + { 4, 0, sys_request_key, "request_key" }, /* 218 */ + { 5, 0, sys_keyctl, "keyctl" }, /* 219 */ + { 5, TP, sys_clone, "clone" }, /* 220 */ + { 3, TF|TP, sys_execve, "execve" }, /* 221 */ + { 6, TD|TM, sys_mmap, "mmap2" }, /* 222 */ + { 6, TD, sys_fadvise64_64, "fadvise64_64" }, /* 223 */ + { 2, TF, sys_swapon, "swapon" }, /* 224 */ + { 1, TF, sys_swapoff, "swapoff" }, /* 225 */ + { 3, TM, sys_mprotect, "mprotect" }, /* 226 */ + { 3, TM, sys_msync, "msync" }, /* 227 */ + { 2, TM, sys_mlock, "mlock" }, /* 228 */ + { 2, TM, sys_munlock, "munlock" }, /* 229 */ + { 1, TM, sys_mlockall, "mlockall" }, /* 230 */ + { 0, TM, sys_munlockall, "munlockall" }, /* 231 */ + { 3, TM, sys_mincore, "mincore" }, /* 232 */ + { 3, TM, sys_madvise, "madvise" }, /* 233 */ + { 5, TM, sys_remap_file_pages, "remap_file_pages" }, /* 234 */ + { 6, TM, sys_mbind, "mbind" }, /* 235 */ + { 5, TM, sys_get_mempolicy, "get_mempolicy" }, /* 236 */ + { 3, TM, sys_set_mempolicy, "set_mempolicy" }, /* 237 */ + { 4, TM, sys_migrate_pages, "migrate_pages" }, /* 238 */ + { 6, TM, sys_move_pages, "move_pages" }, /* 239 */ + { 4, TP|TS, sys_rt_tgsigqueueinfo, "rt_tgsigqueueinfo" }, /* 240 */ + { 5, TD, sys_perf_event_open, "perf_event_open" }, /* 241 */ + { 4, TN, sys_accept4, "accept4" }, /* 242 */ + { 5, TN, sys_recvmmsg, "recvmmsg" }, /* 243 */ + { 3, 0, printargs, "arc_cacheflush" }, /* 244 */ + { 1, 0, printargs, "arc_settls" }, /* 245 */ + { 0, 0, printargs, "arc_gettls" }, /* 246 */ + + [247 ... 259] = { }, + + { 4, TP, sys_wait4, "wait4" }, /* 260 */ + { 4, 0, sys_prlimit64, "prlimit64" }, /* 261 */ + { 2, TD, sys_fanotify_init, "fanotify_init" }, /* 262 */ + { 5, TD|TF, sys_fanotify_mark, "fanotify_mark" }, /* 263 */ + { 5, TD|TF, sys_name_to_handle_at, "name_to_handle_at" }, /* 264 */ + { 3, TD, sys_open_by_handle_at, "open_by_handle_at" }, /* 265 */ + { 2, 0, sys_clock_adjtime, "clock_adjtime" }, /* 266 */ + { 1, TD, sys_syncfs, "syncfs" }, /* 267 */ + { 2, TD, sys_setns, "setns" }, /* 268 */ + { 4, TN, sys_sendmmsg, "sendmmsg" }, /* 269 */ + { 6, 0, sys_process_vm_readv, "process_vm_readv" }, /* 270 */ + { 6, 0, sys_process_vm_writev, "process_vm_writev" }, /* 271 */ + { 5, 0, sys_kcmp, "kcmp" }, /* 272 */ + { 3, TD, sys_finit_module, "finit_module" }, /* 273 */ diff --git a/process.c b/process.c index e2fa25b6..1a2181bd 100644 --- a/process.c +++ b/process.c @@ -2513,6 +2513,8 @@ const struct xlat struct_user_offsets[] = { /* nothing */ #elif defined(XTENSA) /* nothing */ +#elif defined(ARC) + /* nothing */ #endif { 0, NULL }, }; diff --git a/signal.c b/signal.c index 6b3c8c05..7fb9abfe 100644 --- a/signal.c +++ b/signal.c @@ -1033,6 +1033,8 @@ sys_sigreturn(struct tcb *tcp) } #elif defined(XTENSA) /* Xtensa only has rt_sys_sigreturn */ +#elif defined(ARC) + /* ARC syscall ABI only supports rt_sys_sigreturn */ #else # warning No sys_sigreturn() for this architecture # warning (no problem, just a reminder :-) diff --git a/syscall.c b/syscall.c index 1b49bb3c..83a95bde 100644 --- a/syscall.c +++ b/syscall.c @@ -774,6 +774,9 @@ static struct user_gp_regs metag_regs; # define ARCH_REGS_FOR_GETREGSET metag_regs #elif defined(XTENSA) static long xtensa_a2; +# elif defined(ARC) +static struct user_regs_struct arc_regs; +# define ARCH_REGS_FOR_GETREGSET arc_regs #endif void @@ -914,6 +917,8 @@ print_pc(struct tcb *tcp) return; } tprintf("[%08lx] ", pc); +#elif defined(ARC) + tprintf("[%08lx] ", arc_regs.efa); #endif /* architecture */ } @@ -1009,7 +1014,8 @@ static void get_regset(pid_t pid) # if defined(ARM) \ || defined(I386) \ || defined(METAG) \ - || defined(OR1K) + || defined(OR1K) \ + || defined(ARC) static struct iovec io = { .iov_base = &ARCH_REGS_FOR_GETREGSET, .iov_len = sizeof(ARCH_REGS_FOR_GETREGSET) @@ -1035,7 +1041,7 @@ void get_regs(pid_t pid) { /* PTRACE_GETREGSET only */ -# if defined(METAG) || defined(OR1K) || defined(X32) || defined(AARCH64) +# if defined(METAG) || defined(OR1K) || defined(X32) || defined(AARCH64) || defined(ARC) get_regset(pid); /* PTRACE_GETREGS only */ @@ -1542,6 +1548,8 @@ get_scno(struct tcb *tcp) #elif defined(XTENSA) if (upeek(tcp->pid, SYSCALL_NR, &scno) < 0) return -1; +# elif defined(ARC) + scno = arc_regs.scratch.r8; #endif tcp->scno = scno; @@ -1932,6 +1940,11 @@ get_syscall_args(struct tcb *tcp) for (i = 0; i < nargs; ++i) if (upeek(tcp->pid, REG_A_BASE + xtensaregs[i], &tcp->u_arg[i]) < 0) return -1; +# elif defined(ARC) + long *arc_args = &arc_regs.scratch.r0; + for (i = 0; i < nargs; ++i) + tcp->u_arg[i] = *arc_args--; + #else /* Other architecture (32bits specific) */ for (i = 0; i < nargs; ++i) if (upeek(tcp->pid, i*4, &tcp->u_arg[i]) < 0) @@ -2130,6 +2143,8 @@ get_syscall_result(struct tcb *tcp) #elif defined(XTENSA) if (upeek(tcp->pid, REG_A_BASE + 2, &xtensa_a2) < 0) return -1; +#elif defined(ARC) + /* already done by get_regs */ #endif return 1; } @@ -2435,6 +2450,14 @@ get_error(struct tcb *tcp) else { tcp->u_rval = xtensa_a2; } +#elif defined(ARC) + if (check_errno && is_negated_errno(arc_regs.scratch.r0)) { + tcp->u_rval = -1; + u_error = -arc_regs.scratch.r0; + } + else { + tcp->u_rval = arc_regs.scratch.r0; + } #endif tcp->u_error = u_error; } diff --git a/util.c b/util.c index db376b33..0dab902f 100644 --- a/util.c +++ b/util.c @@ -1404,6 +1404,9 @@ change_syscall(struct tcb *tcp, arg_setup_state *state, int new) #elif defined(XTENSA) /* setbpt/clearbpt never used: */ /* Xtensa is only supported since linux 2.6.13 */ +#elif defined(ARC) + /* setbpt/clearbpt never used: */ + /* ARC only supported since 3.9 */ #else #warning Do not know how to handle change_syscall for this architecture #endif /* architecture */