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Add support for ARC Cores from Synopsys

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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 <vgupta@synopsys.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Vineet Gupta 2013-08-16 12:47:06 +05:30 committed by Dmitry V. Levin
parent 16b9dcf8b8
commit 7daacbbbe7
9 changed files with 305 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile.am
View File

@ -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 \

4
configure.ac
View File

@ -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.])

2
defs.h
View File

@ -164,6 +164,7 @@ extern char *stpcpy(char *dst, const char *src);
|| defined(METAG) \
|| defined(TILE) \
|| defined(XTENSA) \
|| defined(ARC) \
) && defined(__GLIBC__)
# include <sys/ptrace.h>
#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)

1
linux/arc/ioctlent.h.in Normal file
View File

@ -0,0 +1 @@
#include "../i386/ioctlent.h.in"

264
linux/arc/syscallent.h Normal file
View File

@ -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 */

2
process.c
View File

@ -2513,6 +2513,8 @@ const struct xlat struct_user_offsets[] = {
/* nothing */
#elif defined(XTENSA)
/* nothing */
#elif defined(ARC)
/* nothing */
#endif
{ 0, NULL },
};

2
signal.c
View File

@ -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 :-)

27
syscall.c
View File

@ -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;
}

3
util.c
View File

@ -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 */