diff options
Diffstat (limited to 'lib/mlibc/sysdeps/linux/riscv64')
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/arch-syscall.cpp | 117 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/cp_syscall.S | 30 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/crt-src/Scrt1.S | 18 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/crt-src/crt1.S | 15 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/crt-src/crti.S | 11 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/crt-src/crtn.S | 7 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/signals.S | 12 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/syscallnos.h | 314 | ||||
| -rw-r--r-- | lib/mlibc/sysdeps/linux/riscv64/thread_entry.S | 29 |
9 files changed, 553 insertions, 0 deletions
diff --git a/lib/mlibc/sysdeps/linux/riscv64/arch-syscall.cpp b/lib/mlibc/sysdeps/linux/riscv64/arch-syscall.cpp new file mode 100644 index 0000000..18ac6b0 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/arch-syscall.cpp @@ -0,0 +1,117 @@ +#include <sys/syscall.h> +#include <bits/syscall.h> + +using sc_word_t = __sc_word_t; + +sc_word_t __do_syscall0(long sc) { + register int sc_reg asm("a7") = sc; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : "r"(sc_reg) : "memory", "a1"); + return ret; +} + +sc_word_t __do_syscall1(long sc, + sc_word_t arg1) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg) + : "memory", "a1"); + return ret; +} + +sc_word_t __do_syscall2(long sc, + sc_word_t arg1, sc_word_t arg2) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t arg2_reg asm("a1") = arg2; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg), + "r"(arg2_reg) + : "memory"); + return ret; +} + +sc_word_t __do_syscall3(long sc, + sc_word_t arg1, sc_word_t arg2, sc_word_t arg3) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t arg2_reg asm("a1") = arg2; + register sc_word_t arg3_reg asm("a2") = arg3; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg), + "r"(arg2_reg), + "r"(arg3_reg) + : "memory"); + return ret; +} + +sc_word_t __do_syscall4(long sc, + sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, + sc_word_t arg4) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t arg2_reg asm("a1") = arg2; + register sc_word_t arg3_reg asm("a2") = arg3; + register sc_word_t arg4_reg asm("a3") = arg4; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg), + "r"(arg2_reg), + "r"(arg3_reg), + "r"(arg4_reg) + : "memory"); + return ret; +} + +sc_word_t __do_syscall5(long sc, + sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, + sc_word_t arg4, sc_word_t arg5) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t arg2_reg asm("a1") = arg2; + register sc_word_t arg3_reg asm("a2") = arg3; + register sc_word_t arg4_reg asm("a3") = arg4; + register sc_word_t arg5_reg asm("a4") = arg5; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg), + "r"(arg2_reg), + "r"(arg3_reg), + "r"(arg4_reg), + "r"(arg5_reg) + : "memory"); + return ret; +} + +sc_word_t __do_syscall6(long sc, + sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, + sc_word_t arg4, sc_word_t arg5, sc_word_t arg6) { + register int sc_reg asm("a7") = sc; + register sc_word_t arg1_reg asm("a0") = arg1; + register sc_word_t arg2_reg asm("a1") = arg2; + register sc_word_t arg3_reg asm("a2") = arg3; + register sc_word_t arg4_reg asm("a3") = arg4; + register sc_word_t arg5_reg asm("a4") = arg5; + register sc_word_t arg6_reg asm("a5") = arg6; + register sc_word_t ret asm("a0"); + asm volatile ("ecall" : "=r"(ret) : + "r"(sc_reg), + "r"(arg1_reg), + "r"(arg2_reg), + "r"(arg3_reg), + "r"(arg4_reg), + "r"(arg5_reg), + "r"(arg6_reg) + : "memory" + ); + return ret; +} diff --git a/lib/mlibc/sysdeps/linux/riscv64/cp_syscall.S b/lib/mlibc/sysdeps/linux/riscv64/cp_syscall.S new file mode 100644 index 0000000..8d3175d --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/cp_syscall.S @@ -0,0 +1,30 @@ +.section .text +.global __mlibc_do_asm_cp_syscall +.global __mlibc_syscall_begin +.global __mlibc_syscall_end +.type __mlibc_do_asm_cp_syscall, "function" +__mlibc_do_asm_cp_syscall: + sd a7, -8(sp) + mv a7, a0 + mv a0, a1 + mv a1, a2 + mv a2, a3 + mv a3, a4 + mv a4, a5 + mv a5, a6 + ld a6, -8(sp) // a7 + lw t0, -96(tp) // Tcb::cancelBits. See asserts in tcb.hpp. +__mlibc_syscall_begin: + // tcbCancelEnableBit && tcbCancelTriggerBit + li t1, (1 << 0) | (1 << 2) + and t0, t0, t1 + beq t0, t1, cancel + ecall +__mlibc_syscall_end: + ret + +cancel: + call __mlibc_do_cancel + unimp +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/crt-src/Scrt1.S b/lib/mlibc/sysdeps/linux/riscv64/crt-src/Scrt1.S new file mode 100644 index 0000000..9ee8625 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/crt-src/Scrt1.S @@ -0,0 +1,18 @@ +.section .text +.global _start +_start: + .weak __global_pointer$ + .hidden __global_pointer$ + .option push + .option norelax + lla gp, __global_pointer$ + .option pop + + mv a0, sp + la a1, main + call __mlibc_entry@plt + unimp + + +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/crt-src/crt1.S b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crt1.S new file mode 100644 index 0000000..16c79d6 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crt1.S @@ -0,0 +1,15 @@ +.section .text +.global _start +_start: + .weak __global_pointer$ + .hidden __global_pointer$ + .option push + .option norelax + lla gp, __global_pointer$ + .option pop + + mv a0, sp + la a1, main + call __mlibc_entry +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/crt-src/crti.S b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crti.S new file mode 100644 index 0000000..69f23ea --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crti.S @@ -0,0 +1,11 @@ +.section .init +.global _init +_init: + unimp + +.section .fini +.global _fini +_fini: + unimp +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/crt-src/crtn.S b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crtn.S new file mode 100644 index 0000000..525efd6 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/crt-src/crtn.S @@ -0,0 +1,7 @@ +.section .init + unimp + +.section .fini + unimp +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/signals.S b/lib/mlibc/sysdeps/linux/riscv64/signals.S new file mode 100644 index 0000000..7769043 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/signals.S @@ -0,0 +1,12 @@ +.section .text + +.global __mlibc_signal_restore +.type __mlibc_signal_restore, @function +__mlibc_signal_restore: +.global __mlibc_signal_restore_rt +.type __mlibc_signal_restore_rt, @function +__mlibc_signal_restore_rt: + li a7, 139 + ecall +.section .note.GNU-stack,"",%progbits + diff --git a/lib/mlibc/sysdeps/linux/riscv64/syscallnos.h b/lib/mlibc/sysdeps/linux/riscv64/syscallnos.h new file mode 100644 index 0000000..a5a11bb --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/syscallnos.h @@ -0,0 +1,314 @@ +#ifndef __MLIBC_SYSCALLNOS_h +#define __MLIBC_SYSCALLNOS_h +/* This file is autogenerated. Don't bother. */ +/* Generator script: sysdeps/linux/update-syscall-list.py. */ +#define __NR_io_setup 0 +#define __NR_io_destroy 1 +#define __NR_io_submit 2 +#define __NR_io_cancel 3 +#define __NR_io_getevents 4 +#define __NR_setxattr 5 +#define __NR_lsetxattr 6 +#define __NR_fsetxattr 7 +#define __NR_getxattr 8 +#define __NR_lgetxattr 9 +#define __NR_fgetxattr 10 +#define __NR_listxattr 11 +#define __NR_llistxattr 12 +#define __NR_flistxattr 13 +#define __NR_removexattr 14 +#define __NR_lremovexattr 15 +#define __NR_fremovexattr 16 +#define __NR_getcwd 17 +#define __NR_lookup_dcookie 18 +#define __NR_eventfd2 19 +#define __NR_epoll_create1 20 +#define __NR_epoll_ctl 21 +#define __NR_epoll_pwait 22 +#define __NR_dup 23 +#define __NR_dup3 24 +#define __NR_fcntl 25 +#define __NR_inotify_init1 26 +#define __NR_inotify_add_watch 27 +#define __NR_inotify_rm_watch 28 +#define __NR_ioctl 29 +#define __NR_ioprio_set 30 +#define __NR_ioprio_get 31 +#define __NR_flock 32 +#define __NR_mknodat 33 +#define __NR_mkdirat 34 +#define __NR_unlinkat 35 +#define __NR_symlinkat 36 +#define __NR_linkat 37 +#define __NR_umount2 39 +#define __NR_mount 40 +#define __NR_pivot_root 41 +#define __NR_nfsservctl 42 +#define __NR_statfs 43 +#define __NR_fstatfs 44 +#define __NR_truncate 45 +#define __NR_ftruncate 46 +#define __NR_fallocate 47 +#define __NR_faccessat 48 +#define __NR_chdir 49 +#define __NR_fchdir 50 +#define __NR_chroot 51 +#define __NR_fchmod 52 +#define __NR_fchmodat 53 +#define __NR_fchownat 54 +#define __NR_fchown 55 +#define __NR_openat 56 +#define __NR_close 57 +#define __NR_vhangup 58 +#define __NR_pipe2 59 +#define __NR_quotactl 60 +#define __NR_getdents64 61 +#define __NR_lseek 62 +#define __NR_read 63 +#define __NR_write 64 +#define __NR_readv 65 +#define __NR_writev 66 +#define __NR_pread64 67 +#define __NR_pwrite64 68 +#define __NR_preadv 69 +#define __NR_pwritev 70 +#define __NR_sendfile 71 +#define __NR_pselect6 72 +#define __NR_ppoll 73 +#define __NR_signalfd4 74 +#define __NR_vmsplice 75 +#define __NR_splice 76 +#define __NR_tee 77 +#define __NR_readlinkat 78 +#define __NR_newfstatat 79 +#define __NR_fstat 80 +#define __NR_sync 81 +#define __NR_fsync 82 +#define __NR_fdatasync 83 +#define __NR_sync_file_range 84 +#define __NR_timerfd_create 85 +#define __NR_timerfd_settime 86 +#define __NR_timerfd_gettime 87 +#define __NR_utimensat 88 +#define __NR_acct 89 +#define __NR_capget 90 +#define __NR_capset 91 +#define __NR_personality 92 +#define __NR_exit 93 +#define __NR_exit_group 94 +#define __NR_waitid 95 +#define __NR_set_tid_address 96 +#define __NR_unshare 97 +#define __NR_futex 98 +#define __NR_set_robust_list 99 +#define __NR_get_robust_list 100 +#define __NR_nanosleep 101 +#define __NR_getitimer 102 +#define __NR_setitimer 103 +#define __NR_kexec_load 104 +#define __NR_init_module 105 +#define __NR_delete_module 106 +#define __NR_timer_create 107 +#define __NR_timer_gettime 108 +#define __NR_timer_getoverrun 109 +#define __NR_timer_settime 110 +#define __NR_timer_delete 111 +#define __NR_clock_settime 112 +#define __NR_clock_gettime 113 +#define __NR_clock_getres 114 +#define __NR_clock_nanosleep 115 +#define __NR_syslog 116 +#define __NR_ptrace 117 +#define __NR_sched_setparam 118 +#define __NR_sched_setscheduler 119 +#define __NR_sched_getscheduler 120 +#define __NR_sched_getparam 121 +#define __NR_sched_setaffinity 122 +#define __NR_sched_getaffinity 123 +#define __NR_sched_yield 124 +#define __NR_sched_get_priority_max 125 +#define __NR_sched_get_priority_min 126 +#define __NR_sched_rr_get_interval 127 +#define __NR_restart_syscall 128 +#define __NR_kill 129 +#define __NR_tkill 130 +#define __NR_tgkill 131 +#define __NR_sigaltstack 132 +#define __NR_rt_sigsuspend 133 +#define __NR_rt_sigaction 134 +#define __NR_rt_sigprocmask 135 +#define __NR_rt_sigpending 136 +#define __NR_rt_sigtimedwait 137 +#define __NR_rt_sigqueueinfo 138 +#define __NR_rt_sigreturn 139 +#define __NR_setpriority 140 +#define __NR_getpriority 141 +#define __NR_reboot 142 +#define __NR_setregid 143 +#define __NR_setgid 144 +#define __NR_setreuid 145 +#define __NR_setuid 146 +#define __NR_setresuid 147 +#define __NR_getresuid 148 +#define __NR_setresgid 149 +#define __NR_getresgid 150 +#define __NR_setfsuid 151 +#define __NR_setfsgid 152 +#define __NR_times 153 +#define __NR_setpgid 154 +#define __NR_getpgid 155 +#define __NR_getsid 156 +#define __NR_setsid 157 +#define __NR_getgroups 158 +#define __NR_setgroups 159 +#define __NR_uname 160 +#define __NR_sethostname 161 +#define __NR_setdomainname 162 +#define __NR_getrlimit 163 +#define __NR_setrlimit 164 +#define __NR_getrusage 165 +#define __NR_umask 166 +#define __NR_prctl 167 +#define __NR_getcpu 168 +#define __NR_gettimeofday 169 +#define __NR_settimeofday 170 +#define __NR_adjtimex 171 +#define __NR_getpid 172 +#define __NR_getppid 173 +#define __NR_getuid 174 +#define __NR_geteuid 175 +#define __NR_getgid 176 +#define __NR_getegid 177 +#define __NR_gettid 178 +#define __NR_sysinfo 179 +#define __NR_mq_open 180 +#define __NR_mq_unlink 181 +#define __NR_mq_timedsend 182 +#define __NR_mq_timedreceive 183 +#define __NR_mq_notify 184 +#define __NR_mq_getsetattr 185 +#define __NR_msgget 186 +#define __NR_msgctl 187 +#define __NR_msgrcv 188 +#define __NR_msgsnd 189 +#define __NR_semget 190 +#define __NR_semctl 191 +#define __NR_semtimedop 192 +#define __NR_semop 193 +#define __NR_shmget 194 +#define __NR_shmctl 195 +#define __NR_shmat 196 +#define __NR_shmdt 197 +#define __NR_socket 198 +#define __NR_socketpair 199 +#define __NR_bind 200 +#define __NR_listen 201 +#define __NR_accept 202 +#define __NR_connect 203 +#define __NR_getsockname 204 +#define __NR_getpeername 205 +#define __NR_sendto 206 +#define __NR_recvfrom 207 +#define __NR_setsockopt 208 +#define __NR_getsockopt 209 +#define __NR_shutdown 210 +#define __NR_sendmsg 211 +#define __NR_recvmsg 212 +#define __NR_readahead 213 +#define __NR_brk 214 +#define __NR_munmap 215 +#define __NR_mremap 216 +#define __NR_add_key 217 +#define __NR_request_key 218 +#define __NR_keyctl 219 +#define __NR_clone 220 +#define __NR_execve 221 +#define __NR_mmap 222 +#define __NR_fadvise64 223 +#define __NR_swapon 224 +#define __NR_swapoff 225 +#define __NR_mprotect 226 +#define __NR_msync 227 +#define __NR_mlock 228 +#define __NR_munlock 229 +#define __NR_mlockall 230 +#define __NR_munlockall 231 +#define __NR_mincore 232 +#define __NR_madvise 233 +#define __NR_remap_file_pages 234 +#define __NR_mbind 235 +#define __NR_get_mempolicy 236 +#define __NR_set_mempolicy 237 +#define __NR_migrate_pages 238 +#define __NR_move_pages 239 +#define __NR_rt_tgsigqueueinfo 240 +#define __NR_perf_event_open 241 +#define __NR_accept4 242 +#define __NR_recvmmsg 243 +#define __NR_arch_specific_syscall 244 +#define __NR_riscv_hwprobe 258 +#define __NR_riscv_flush_icache 259 +#define __NR_wait4 260 +#define __NR_prlimit64 261 +#define __NR_fanotify_init 262 +#define __NR_fanotify_mark 263 +#define __NR_name_to_handle_at 264 +#define __NR_open_by_handle_at 265 +#define __NR_clock_adjtime 266 +#define __NR_syncfs 267 +#define __NR_setns 268 +#define __NR_sendmmsg 269 +#define __NR_process_vm_readv 270 +#define __NR_process_vm_writev 271 +#define __NR_kcmp 272 +#define __NR_finit_module 273 +#define __NR_sched_setattr 274 +#define __NR_sched_getattr 275 +#define __NR_renameat2 276 +#define __NR_seccomp 277 +#define __NR_getrandom 278 +#define __NR_memfd_create 279 +#define __NR_bpf 280 +#define __NR_execveat 281 +#define __NR_userfaultfd 282 +#define __NR_membarrier 283 +#define __NR_mlock2 284 +#define __NR_copy_file_range 285 +#define __NR_preadv2 286 +#define __NR_pwritev2 287 +#define __NR_pkey_mprotect 288 +#define __NR_pkey_alloc 289 +#define __NR_pkey_free 290 +#define __NR_statx 291 +#define __NR_io_pgetevents 292 +#define __NR_rseq 293 +#define __NR_kexec_file_load 294 +#define __NR_pidfd_send_signal 424 +#define __NR_io_uring_setup 425 +#define __NR_io_uring_enter 426 +#define __NR_io_uring_register 427 +#define __NR_open_tree 428 +#define __NR_move_mount 429 +#define __NR_fsopen 430 +#define __NR_fsconfig 431 +#define __NR_fsmount 432 +#define __NR_fspick 433 +#define __NR_pidfd_open 434 +#define __NR_clone3 435 +#define __NR_close_range 436 +#define __NR_openat2 437 +#define __NR_pidfd_getfd 438 +#define __NR_faccessat2 439 +#define __NR_process_madvise 440 +#define __NR_epoll_pwait2 441 +#define __NR_mount_setattr 442 +#define __NR_quotactl_fd 443 +#define __NR_landlock_create_ruleset 444 +#define __NR_landlock_add_rule 445 +#define __NR_landlock_restrict_self 446 +#define __NR_memfd_secret 447 +#define __NR_process_mrelease 448 +#define __NR_futex_waitv 449 +#define __NR_set_mempolicy_home_node 450 +#define __NR_syscalls 451 +#endif /* __MLIBC_SYSCALLNOS_h */ diff --git a/lib/mlibc/sysdeps/linux/riscv64/thread_entry.S b/lib/mlibc/sysdeps/linux/riscv64/thread_entry.S new file mode 100644 index 0000000..fe170fa --- /dev/null +++ b/lib/mlibc/sysdeps/linux/riscv64/thread_entry.S @@ -0,0 +1,29 @@ +.section .text +.global __mlibc_spawn_thread +.type __mlibc_spawn_thread, "function" +__mlibc_spawn_thread: + // __mlibc_spawn_thread(flags, stack, pid_out, child_tid, tls) + // a0, a1, a2, a3, a4 + // syscall(NR_clone, flags, stack, ptid, tls, ctid) + // a7, a0, a1, a2, a3, a4 + + // Swap a3 <-> a4 + mv a5, a4 + mv a4, a3 + mv a3, a5 + + li a7, 220 // NR_clone + ecall + bnez a0, .parent + + ld a0, 0(sp) + ld a1, 8(sp) + addi sp, sp, 8 + andi sp, sp, -16 + call __mlibc_enter_thread + unimp + +.parent: + ret +.section .note.GNU-stack,"",%progbits + |