diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/arch-syscall.h | 325 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/clone.c | 61 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/mmap_internal.h | 28 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/or1k_clone.S | 89 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/sysdep.c | 34 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/or1k/sysdep.h | 201 |
6 files changed, 738 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/or1k/arch-syscall.h b/sysdeps/unix/sysv/linux/or1k/arch-syscall.h new file mode 100644 index 0000000000..c6c3556137 --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/arch-syscall.h @@ -0,0 +1,325 @@ +/* AUTOGENERATED by update-syscall-lists.py. */ +#define __NR_accept 202 +#define __NR_accept4 242 +#define __NR_acct 89 +#define __NR_add_key 217 +#define __NR_adjtimex 171 +#define __NR_bind 200 +#define __NR_bpf 280 +#define __NR_brk 214 +#define __NR_capget 90 +#define __NR_capset 91 +#define __NR_chdir 49 +#define __NR_chroot 51 +#define __NR_clock_adjtime 266 +#define __NR_clock_adjtime64 405 +#define __NR_clock_getres 114 +#define __NR_clock_getres_time64 406 +#define __NR_clock_gettime 113 +#define __NR_clock_gettime64 403 +#define __NR_clock_nanosleep 115 +#define __NR_clock_nanosleep_time64 407 +#define __NR_clock_settime 112 +#define __NR_clock_settime64 404 +#define __NR_clone 220 +#define __NR_clone3 435 +#define __NR_close 57 +#define __NR_close_range 436 +#define __NR_connect 203 +#define __NR_copy_file_range 285 +#define __NR_delete_module 106 +#define __NR_dup 23 +#define __NR_dup3 24 +#define __NR_epoll_create1 20 +#define __NR_epoll_ctl 21 +#define __NR_epoll_pwait 22 +#define __NR_epoll_pwait2 441 +#define __NR_eventfd2 19 +#define __NR_execve 221 +#define __NR_execveat 281 +#define __NR_exit 93 +#define __NR_exit_group 94 +#define __NR_faccessat 48 +#define __NR_faccessat2 439 +#define __NR_fadvise64_64 223 +#define __NR_fallocate 47 +#define __NR_fanotify_init 262 +#define __NR_fanotify_mark 263 +#define __NR_fchdir 50 +#define __NR_fchmod 52 +#define __NR_fchmodat 53 +#define __NR_fchown 55 +#define __NR_fchownat 54 +#define __NR_fcntl64 25 +#define __NR_fdatasync 83 +#define __NR_fgetxattr 10 +#define __NR_finit_module 273 +#define __NR_flistxattr 13 +#define __NR_flock 32 +#define __NR_fremovexattr 16 +#define __NR_fsconfig 431 +#define __NR_fsetxattr 7 +#define __NR_fsmount 432 +#define __NR_fsopen 430 +#define __NR_fspick 433 +#define __NR_fstat64 80 +#define __NR_fstatat64 79 +#define __NR_fstatfs64 44 +#define __NR_fsync 82 +#define __NR_ftruncate64 46 +#define __NR_futex 98 +#define __NR_futex_time64 422 +#define __NR_get_mempolicy 236 +#define __NR_get_robust_list 100 +#define __NR_getcpu 168 +#define __NR_getcwd 17 +#define __NR_getdents64 61 +#define __NR_getegid 177 +#define __NR_geteuid 175 +#define __NR_getgid 176 +#define __NR_getgroups 158 +#define __NR_getitimer 102 +#define __NR_getpeername 205 +#define __NR_getpgid 155 +#define __NR_getpid 172 +#define __NR_getppid 173 +#define __NR_getpriority 141 +#define __NR_getrandom 278 +#define __NR_getresgid 150 +#define __NR_getresuid 148 +#define __NR_getrlimit 163 +#define __NR_getrusage 165 +#define __NR_getsid 156 +#define __NR_getsockname 204 +#define __NR_getsockopt 209 +#define __NR_gettid 178 +#define __NR_gettimeofday 169 +#define __NR_getuid 174 +#define __NR_getxattr 8 +#define __NR_init_module 105 +#define __NR_inotify_add_watch 27 +#define __NR_inotify_init1 26 +#define __NR_inotify_rm_watch 28 +#define __NR_io_cancel 3 +#define __NR_io_destroy 1 +#define __NR_io_getevents 4 +#define __NR_io_pgetevents 292 +#define __NR_io_pgetevents_time64 416 +#define __NR_io_setup 0 +#define __NR_io_submit 2 +#define __NR_io_uring_enter 426 +#define __NR_io_uring_register 427 +#define __NR_io_uring_setup 425 +#define __NR_ioctl 29 +#define __NR_ioprio_get 31 +#define __NR_ioprio_set 30 +#define __NR_kcmp 272 +#define __NR_kexec_file_load 294 +#define __NR_kexec_load 104 +#define __NR_keyctl 219 +#define __NR_kill 129 +#define __NR_landlock_add_rule 445 +#define __NR_landlock_create_ruleset 444 +#define __NR_landlock_restrict_self 446 +#define __NR_lgetxattr 9 +#define __NR_linkat 37 +#define __NR_listen 201 +#define __NR_listxattr 11 +#define __NR_llistxattr 12 +#define __NR_llseek 62 +#define __NR_lookup_dcookie 18 +#define __NR_lremovexattr 15 +#define __NR_lsetxattr 6 +#define __NR_madvise 233 +#define __NR_mbind 235 +#define __NR_membarrier 283 +#define __NR_memfd_create 279 +#define __NR_migrate_pages 238 +#define __NR_mincore 232 +#define __NR_mkdirat 34 +#define __NR_mknodat 33 +#define __NR_mlock 228 +#define __NR_mlock2 284 +#define __NR_mlockall 230 +#define __NR_mmap2 222 +#define __NR_mount 40 +#define __NR_mount_setattr 442 +#define __NR_move_mount 429 +#define __NR_move_pages 239 +#define __NR_mprotect 226 +#define __NR_mq_getsetattr 185 +#define __NR_mq_notify 184 +#define __NR_mq_open 180 +#define __NR_mq_timedreceive 183 +#define __NR_mq_timedreceive_time64 419 +#define __NR_mq_timedsend 182 +#define __NR_mq_timedsend_time64 418 +#define __NR_mq_unlink 181 +#define __NR_mremap 216 +#define __NR_msgctl 187 +#define __NR_msgget 186 +#define __NR_msgrcv 188 +#define __NR_msgsnd 189 +#define __NR_msync 227 +#define __NR_munlock 229 +#define __NR_munlockall 231 +#define __NR_munmap 215 +#define __NR_name_to_handle_at 264 +#define __NR_nanosleep 101 +#define __NR_nfsservctl 42 +#define __NR_open_by_handle_at 265 +#define __NR_open_tree 428 +#define __NR_openat 56 +#define __NR_openat2 437 +#define __NR_or1k_atomic 244 +#define __NR_perf_event_open 241 +#define __NR_personality 92 +#define __NR_pidfd_getfd 438 +#define __NR_pidfd_open 434 +#define __NR_pidfd_send_signal 424 +#define __NR_pipe2 59 +#define __NR_pivot_root 41 +#define __NR_pkey_alloc 289 +#define __NR_pkey_free 290 +#define __NR_pkey_mprotect 288 +#define __NR_ppoll 73 +#define __NR_ppoll_time64 414 +#define __NR_prctl 167 +#define __NR_pread64 67 +#define __NR_preadv 69 +#define __NR_preadv2 286 +#define __NR_prlimit64 261 +#define __NR_process_madvise 440 +#define __NR_process_mrelease 448 +#define __NR_process_vm_readv 270 +#define __NR_process_vm_writev 271 +#define __NR_pselect6 72 +#define __NR_pselect6_time64 413 +#define __NR_ptrace 117 +#define __NR_pwrite64 68 +#define __NR_pwritev 70 +#define __NR_pwritev2 287 +#define __NR_quotactl 60 +#define __NR_quotactl_fd 443 +#define __NR_read 63 +#define __NR_readahead 213 +#define __NR_readlinkat 78 +#define __NR_readv 65 +#define __NR_reboot 142 +#define __NR_recvfrom 207 +#define __NR_recvmmsg 243 +#define __NR_recvmmsg_time64 417 +#define __NR_recvmsg 212 +#define __NR_remap_file_pages 234 +#define __NR_removexattr 14 +#define __NR_renameat 38 +#define __NR_renameat2 276 +#define __NR_request_key 218 +#define __NR_restart_syscall 128 +#define __NR_rseq 293 +#define __NR_rt_sigaction 134 +#define __NR_rt_sigpending 136 +#define __NR_rt_sigprocmask 135 +#define __NR_rt_sigqueueinfo 138 +#define __NR_rt_sigreturn 139 +#define __NR_rt_sigsuspend 133 +#define __NR_rt_sigtimedwait 137 +#define __NR_rt_sigtimedwait_time64 421 +#define __NR_rt_tgsigqueueinfo 240 +#define __NR_sched_get_priority_max 125 +#define __NR_sched_get_priority_min 126 +#define __NR_sched_getaffinity 123 +#define __NR_sched_getattr 275 +#define __NR_sched_getparam 121 +#define __NR_sched_getscheduler 120 +#define __NR_sched_rr_get_interval 127 +#define __NR_sched_rr_get_interval_time64 423 +#define __NR_sched_setaffinity 122 +#define __NR_sched_setattr 274 +#define __NR_sched_setparam 118 +#define __NR_sched_setscheduler 119 +#define __NR_sched_yield 124 +#define __NR_seccomp 277 +#define __NR_semctl 191 +#define __NR_semget 190 +#define __NR_semop 193 +#define __NR_semtimedop 192 +#define __NR_semtimedop_time64 420 +#define __NR_sendfile64 71 +#define __NR_sendmmsg 269 +#define __NR_sendmsg 211 +#define __NR_sendto 206 +#define __NR_set_mempolicy 237 +#define __NR_set_robust_list 99 +#define __NR_set_tid_address 96 +#define __NR_setdomainname 162 +#define __NR_setfsgid 152 +#define __NR_setfsuid 151 +#define __NR_setgid 144 +#define __NR_setgroups 159 +#define __NR_sethostname 161 +#define __NR_setitimer 103 +#define __NR_setns 268 +#define __NR_setpgid 154 +#define __NR_setpriority 140 +#define __NR_setregid 143 +#define __NR_setresgid 149 +#define __NR_setresuid 147 +#define __NR_setreuid 145 +#define __NR_setrlimit 164 +#define __NR_setsid 157 +#define __NR_setsockopt 208 +#define __NR_settimeofday 170 +#define __NR_setuid 146 +#define __NR_setxattr 5 +#define __NR_shmat 196 +#define __NR_shmctl 195 +#define __NR_shmdt 197 +#define __NR_shmget 194 +#define __NR_shutdown 210 +#define __NR_sigaltstack 132 +#define __NR_signalfd4 74 +#define __NR_socket 198 +#define __NR_socketpair 199 +#define __NR_splice 76 +#define __NR_statfs64 43 +#define __NR_statx 291 +#define __NR_swapoff 225 +#define __NR_swapon 224 +#define __NR_symlinkat 36 +#define __NR_sync 81 +#define __NR_sync_file_range 84 +#define __NR_syncfs 267 +#define __NR_sysinfo 179 +#define __NR_syslog 116 +#define __NR_tee 77 +#define __NR_tgkill 131 +#define __NR_timer_create 107 +#define __NR_timer_delete 111 +#define __NR_timer_getoverrun 109 +#define __NR_timer_gettime 108 +#define __NR_timer_gettime64 408 +#define __NR_timer_settime 110 +#define __NR_timer_settime64 409 +#define __NR_timerfd_create 85 +#define __NR_timerfd_gettime 87 +#define __NR_timerfd_gettime64 410 +#define __NR_timerfd_settime 86 +#define __NR_timerfd_settime64 411 +#define __NR_times 153 +#define __NR_tkill 130 +#define __NR_truncate64 45 +#define __NR_umask 166 +#define __NR_umount2 39 +#define __NR_uname 160 +#define __NR_unlinkat 35 +#define __NR_unshare 97 +#define __NR_userfaultfd 282 +#define __NR_utimensat 88 +#define __NR_utimensat_time64 412 +#define __NR_vhangup 58 +#define __NR_vmsplice 75 +#define __NR_wait4 260 +#define __NR_waitid 95 +#define __NR_write 64 +#define __NR_writev 66 diff --git a/sysdeps/unix/sysv/linux/or1k/clone.c b/sysdeps/unix/sysv/linux/or1k/clone.c new file mode 100644 index 0000000000..a63b542979 --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/clone.c @@ -0,0 +1,61 @@ +/* OpenRISC helper for the clone syscall. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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/>. */ + +#include <stdarg.h> +#include <sysdep.h> + +extern int __or1k_clone (int (*fn)(void *), void *child_stack, + int flags, void *arg, pid_t *ptid, + void *tls, pid_t *ctid); + + +/* The OpenRISC ABI uses the stack for varargs like those using in clone + but the linux syscall ABI uses registers. + This function moves from varargs to regs. */ +int +__clone (int (*fn)(void *), void *child_stack, + int flags, void *arg, ... + /* pid_t *ptid, struct user_desc *tls, pid_t *ctid */ ) +{ + void *ptid; + void *tls; + void *ctid; + va_list ap; + int err; + + va_start (ap, arg); + ptid = va_arg (ap, void *); + tls = va_arg (ap, void *); + ctid = va_arg (ap, void *); + va_end (ap); + + /* Sanity check the arguments */ + err = -EINVAL; + if (!fn) + goto syscall_error; + if (!child_stack) + goto syscall_error; + + return __or1k_clone (fn, child_stack, flags, arg, ptid, tls, ctid); + +syscall_error: + __set_errno (-err); + return -1; +} +libc_hidden_def (__clone) +weak_alias (__clone, clone) diff --git a/sysdeps/unix/sysv/linux/or1k/mmap_internal.h b/sysdeps/unix/sysv/linux/or1k/mmap_internal.h new file mode 100644 index 0000000000..793e27c143 --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/mmap_internal.h @@ -0,0 +1,28 @@ +/* Common mmap definition for Linux implementation. OpenRISC version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 MMAP_OR1K_INTERNAL_LINUX_H +#define MMAP_OR1K_INTERNAL_LINUX_H + +/* OpenRISC Linux sets the page shift to 13 and mmap2 expects + offsets to be provided in 8K pages. */ +#define MMAP2_PAGE_UNIT 8192ULL + +#include_next <mmap_internal.h> + +#endif diff --git a/sysdeps/unix/sysv/linux/or1k/or1k_clone.S b/sysdeps/unix/sysv/linux/or1k/or1k_clone.S new file mode 100644 index 0000000000..2669cc918d --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/or1k_clone.S @@ -0,0 +1,89 @@ +/* clone helper __or1k_clone for OpenRISC. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <tls.h> +#define __ASSEMBLY__ +#include <linux/sched.h> + + .text +ENTRY (__or1k_clone) + + /* To handle GCC varargs we need to use our __clone wrapper to pop + everything from the stack for us. + Now everything is placed in the registers which saves us a lot + of trouble. + + The userland implementation is: + + int clone (int (*fn)(void *), void *child_stack, + int flags, void *arg, pid_t *ptid, + struct user_desc *tls, pid_t *ctid); + The kernel entry is: + + int clone (long flags, void *child_stack, int *parent_tid, + int *child_tid, struct void *tls) + + NB: tls isn't really an argument, it is read from r7 directly. */ + + /* First, align the stack to 4 bytes. */ + l.xori r11, r0, -4 + l.and r4, r4, r11 + + /* Put 'fn', 'arg' and 'flags' on the child stack. */ + l.addi r4, r4, -12 + l.sw 8(r4), r3 + l.sw 4(r4), r6 + l.sw 0(r4), r5 + + l.ori r3, r5, 0 + /* The child_stack is already in r4. */ + l.ori r5, r7, 0 + l.lwz r6, 0(r1) + l.ori r7, r8, 0 + + DO_CALL (clone) + + l.sfgeui r11, 0xf001 + l.bf L(error) + l.nop + + /* If we are not the child, return the pid. */ + l.sfeqi r11, 0 + l.bf L(thread_start) + l.nop + + l.jr r9 + l.nop + +L(thread_start): + /* Load function from stack. */ + l.lwz r11, 8(r1) + l.jalr r11 + l.lwz r3, 4(r1) + + /* Exit the child thread. */ + l.ori r3, r11, 0 + DO_CALL (exit) + +L(error): + l.j SYSCALL_ERROR_NAME + l.ori r3, r11, 0 + +END (__or1k_clone) diff --git a/sysdeps/unix/sysv/linux/or1k/sysdep.c b/sysdeps/unix/sysv/linux/or1k/sysdep.c new file mode 100644 index 0000000000..4e4acaf2ef --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/sysdep.c @@ -0,0 +1,34 @@ +/* OpenRISC wrapper for setting errno. + Copyright (C) 2022 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + 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/>. */ + +#include <sysdep.h> +#include <errno.h> + +long int __syscall_error (long int err); +hidden_proto (__syscall_error) + +/* This routine is jumped to by all the syscall handlers, to stash + an error number into errno. */ +long int +__syscall_error (long int err) +{ + __set_errno (- err); + return -1; +} +hidden_def (__syscall_error) diff --git a/sysdeps/unix/sysv/linux/or1k/sysdep.h b/sysdeps/unix/sysv/linux/or1k/sysdep.h new file mode 100644 index 0000000000..941c934554 --- /dev/null +++ b/sysdeps/unix/sysv/linux/or1k/sysdep.h @@ -0,0 +1,201 @@ +/* Assembler and syscall macros. OpenRISC version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 _LINUX_OR1K_SYSDEP_H +#define _LINUX_OR1K_SYSDEP_H 1 + +#include <sysdeps/or1k/sysdep.h> +#include <sysdeps/unix/sysv/linux/generic/sysdep.h> +#include <tls.h> + +/* "workarounds" for generic code needing to handle 64-bit time_t. */ + +#undef __NR_clock_getres +#undef __NR_futex +#undef __NR_ppoll +#undef __NR_pselect6 +#undef __NR_recvmmsg +#undef __NR_rt_sigtimedwait +#undef __NR_semtimedop +#undef __NR_utimensat + +/* Fix sysdeps/unix/sysv/linux/clock_getcpuclockid.c. */ +#define __NR_clock_getres __NR_clock_getres_time64 +/* Fix sysdeps/nptl/lowlevellock-futex.h. */ +#define __NR_futex __NR_futex_time64 +/* Fix sysdeps/unix/sysv/linux/pause.c. */ +#define __NR_ppoll __NR_ppoll_time64 +/* Fix sysdeps/unix/sysv/linux/select.c. */ +#define __NR_pselect6 __NR_pselect6_time64 +/* Fix sysdeps/unix/sysv/linux/recvmmsg.c. */ +#define __NR_recvmmsg __NR_recvmmsg_time64 +/* Fix sysdeps/unix/sysv/linux/sigtimedwait.c. */ +#define __NR_rt_sigtimedwait __NR_rt_sigtimedwait_time64 +/* Fix sysdeps/unix/sysv/linux/semtimedop.c. */ +#define __NR_semtimedop __NR_semtimedop_time64 +/* Hack sysdeps/unix/sysv/linux/generic/utimes.c. */ +#define __NR_utimensat __NR_utimensat_time64 + +#undef SYS_ify +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +/* Linux uses a negative return value to indicate syscall errors, + unlike most Unices, which use the condition codes' carry flag. + + Since version 2.1 the return value of a system call might be + negative even if the call succeeded. E.g., the lseek system call + might return a large offset. Therefore we must not anymore test + for < 0, but test for a real error by making sure the value in R0 + is a real error number. Linus said he will make sure the no syscall + returns a value in -1 .. -4095 as a valid result so we can safely + test with -4095. */ + +#ifdef __ASSEMBLER__ + +/* Macros used in syscall-template.S */ +#define ret l.jr r9; l.nop +#define ret_NOERRNO l.jr r9; l.nop + +#undef DO_CALL +#define DO_CALL(syscall_name) \ + l.addi r11, r0, SYS_ify (syscall_name); \ + l.sys 1; \ + l.nop + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + ENTRY (name); \ + DO_CALL(syscall_name); \ + /* if -4096 < ret < 0 holds, it's an error */ \ + l.sfgeui r11, 0xf001; \ + l.bf L(pseudo_end); \ + l.nop + +#undef PSEUDO_NOERRNO +#define PSEUDO_NOERRNO(name, syscall_name, args) \ + ENTRY (name); \ + DO_CALL(syscall_name) + +#undef PSEUDO_END +#define PSEUDO_END(name) \ +L(pseudo_end): \ + l.j SYSCALL_ERROR_NAME; \ + l.ori r3,r11,0; \ + END (name) + +#undef PSEUDO_END_NOERRNO +#define PSEUDO_END_NOERRNO(name) \ + END (name) + +#ifndef PIC +/* For static code, on error jump to __syscall_error directly. */ +# define SYSCALL_ERROR_NAME __syscall_error +#elif !IS_IN (libc) +/* Use the internal name for libc shared objects. */ +# define SYSCALL_ERROR_NAME __GI___syscall_error +#else +/* Otherwise, on error do a full PLT jump. */ +# define SYSCALL_ERROR_NAME plt(__syscall_error) +#endif + +#else /* not __ASSEMBLER__ */ + +#include <errno.h> + +extern long int __syscall_error (long int neg_errno); + +/* Pointer mangling is not yet supported for or1k. */ +#define PTR_MANGLE(var) (void) (var) +#define PTR_DEMANGLE(var) (void) (var) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, nr, args...) \ + INTERNAL_SYSCALL_NCS (SYS_ify (name), nr, args) + +/* The _NCS variant allows non-constant syscall numbers. */ +#undef INTERNAL_SYSCALL_NCS +#define INTERNAL_SYSCALL_NCS(number, nr, args...) \ + ({ unsigned long int __sys_result; \ + { \ + long int _sc_ret = (long int) number; \ + LOAD_ARGS_##nr (args) \ + register long int __sc_ret __asm__ ("r11") = _sc_ret; \ + __asm__ __volatile__ ("l.sys 1\n\t" \ + " l.nop\n\t" \ + : "+r" (__sc_ret) \ + : ASM_ARGS_##nr \ + : ASM_CLOBBERS_##nr \ + "r12", "r13", "r15", "r17", "r19", \ + "r21", "r23", "r25", "r27", "r29", \ + "r31", "memory"); \ + __sys_result = __sc_ret; \ + } \ + (long int) __sys_result; }) + +/* From here on we have nested macros that generate code for + setting up syscall arguments. */ + +#define LOAD_ARGS_0() + +#define ASM_ARGS_0 +#define ASM_CLOBBERS_0 "r3", ASM_CLOBBERS_1 + +#define LOAD_ARGS_1(a) \ + long int _a = (long int)(a); \ + register long int __a __asm__ ("r3") = _a; +#define ASM_ARGS_1 "r" (__a) +#define ASM_CLOBBERS_1 "r4", ASM_CLOBBERS_2 + +#define LOAD_ARGS_2(a, b) \ + long int _b = (long int)(b); \ + LOAD_ARGS_1 (a) \ + register long int __b __asm__ ("r4") = _b; +#define ASM_ARGS_2 ASM_ARGS_1, "r" (__b) +#define ASM_CLOBBERS_2 "r5", ASM_CLOBBERS_3 + +#define LOAD_ARGS_3(a, b, c) \ + long int _c = (long int)(c); \ + LOAD_ARGS_2 (a, b) \ + register long int __c __asm__ ("r5") = _c; +#define ASM_ARGS_3 ASM_ARGS_2, "r" (__c) +#define ASM_CLOBBERS_3 "r6", ASM_CLOBBERS_4 + +#define LOAD_ARGS_4(a, b, c, d) \ + LOAD_ARGS_3 (a, b, c) \ + long int _d = (long int)(d); \ + register long int __d __asm__ ("r6") = _d; +#define ASM_ARGS_4 ASM_ARGS_3, "r" (__d) +#define ASM_CLOBBERS_4 "r7", ASM_CLOBBERS_5 + +#define LOAD_ARGS_5(a, b, c, d, e) \ + long int _e = (long int)(e); \ + LOAD_ARGS_4 (a, b, c, d) \ + register long int __e __asm__ ("r7") = _e; +#define ASM_ARGS_5 ASM_ARGS_4, "r" (__e) +#define ASM_CLOBBERS_5 "r8", ASM_CLOBBERS_6 + +#define LOAD_ARGS_6(a, b, c, d, e, f) \ + long int _f = (long int)(f); \ + LOAD_ARGS_5 (a, b, c, d, e) \ + register long int __f __asm__ ("r8") = _f; +#define ASM_ARGS_6 ASM_ARGS_5, "r" (__f) +#define ASM_CLOBBERS_6 + +#endif /* not __ASSEMBLER__ */ + +#endif /* linux/or1k/sysdep.h */ |