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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v')
-rw-r--r--v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v433
1 files changed, 433 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v b/v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v
new file mode 100644
index 0000000..b0b2c47
--- /dev/null
+++ b/v_windows/v/old/vlib/builtin/linux_bare/linux_syscalls.v
@@ -0,0 +1,433 @@
+module builtin
+
+enum SigIndex {
+ si_signo = 0x00
+ si_code = 0x02
+ si_pid = 0x04
+ si_uid = 0x05
+ si_status = 0x06
+ si_size = 0x80
+}
+
+enum Signo {
+ sighup = 1 // Hangup.
+ sigint = 2 // Interactive attention signal.
+ sigquit = 3 // Quit.
+ sigill = 4 // Illegal instruction.
+ sigtrap = 5 // Trace/breakpoint trap.
+ sigabrt = 6 // Abnormal termination.
+ sigbus = 7
+ sigfpe = 8 // Erroneous arithmetic operation.
+ sigkill = 9 // Killed.
+ sigusr1 = 10
+ sigsegv = 11 // Invalid access to memory.
+ sigusr2 = 12
+ sigpipe = 13 // Broken pipe.
+ sigalrm = 14 // Alarm clock.
+ sigterm = 15 // Termination request.
+ sigstkflt = 16
+ sigchld = 17
+ sigcont = 18
+ sigstop = 19
+ sigtstp = 20
+ sigttin = 21 // Background read from control terminal.
+ sigttou = 22 // Background write to control terminal.
+ sigurg = 23
+ sigxcpu = 24 // CPU time limit exceeded.
+ sigxfsz = 25 // File size limit exceeded.
+ sigvtalrm = 26 // Virtual timer expired.
+ sigprof = 27 // Profiling timer expired.
+ sigwinch = 28
+ sigpoll = 29
+ sigsys = 31
+}
+
+// List of all the errors returned by syscalls
+enum Errno {
+ enoerror = 0x00000000
+ eperm = 0x00000001
+ enoent = 0x00000002
+ esrch = 0x00000003
+ eintr = 0x00000004
+ eio = 0x00000005
+ enxio = 0x00000006
+ e2big = 0x00000007
+ enoexec = 0x00000008
+ ebadf = 0x00000009
+ echild = 0x0000000a
+ eagain = 0x0000000b
+ enomem = 0x0000000c
+ eacces = 0x0000000d
+ efault = 0x0000000e
+ enotblk = 0x0000000f
+ ebusy = 0x00000010
+ eexist = 0x00000011
+ exdev = 0x00000012
+ enodev = 0x00000013
+ enotdir = 0x00000014
+ eisdir = 0x00000015
+ einval = 0x00000016
+ enfile = 0x00000017
+ emfile = 0x00000018
+ enotty = 0x00000019
+ etxtbsy = 0x0000001a
+ efbig = 0x0000001b
+ enospc = 0x0000001c
+ espipe = 0x0000001d
+ erofs = 0x0000001e
+ emlink = 0x0000001f
+ epipe = 0x00000020
+ edom = 0x00000021
+ erange = 0x00000022
+}
+
+enum MemProt {
+ prot_read = 0x1
+ prot_write = 0x2
+ prot_exec = 0x4
+ prot_none = 0x0
+ prot_growsdown = 0x01000000
+ prot_growsup = 0x02000000
+}
+
+enum MapFlags {
+ map_shared = 0x01
+ map_private = 0x02
+ map_shared_validate = 0x03
+ map_type = 0x0f
+ map_fixed = 0x10
+ map_file = 0x00
+ map_anonymous = 0x20
+ map_huge_shift = 26
+ map_huge_mask = 0x3f
+}
+
+// const (
+// fcntlf_dupfd = 0x00000000
+// fcntlf_exlck = 0x00000004
+// fcntlf_getfd = 0x00000001
+// fcntlf_getfl = 0x00000003
+// fcntlf_getlk = 0x00000005
+// fcntlf_getlk64 = 0x0000000c
+// fcntlf_getown = 0x00000009
+// fcntlf_getowner_uids = 0x00000011
+// fcntlf_getown_ex = 0x00000010
+// fcntlf_getsig = 0x0000000b
+// fcntlf_ofd_getlk = 0x00000024
+// fcntlf_ofd_setlk = 0x00000025
+// fcntlf_ofd_setlkw = 0x00000026
+// fcntlf_owner_pgrp = 0x00000002
+// fcntlf_owner_pid = 0x00000001
+// fcntlf_owner_tid = 0x00000000
+// fcntlf_rdlck = 0x00000000
+// fcntlf_setfd = 0x00000002
+// fcntlf_setfl = 0x00000004
+// fcntlf_setlk = 0x00000006
+// fcntlf_setlk64 = 0x0000000d
+// fcntlf_setlkw = 0x00000007
+// fcntlf_setlkw64 = 0x0000000e
+// fcntlf_setown = 0x00000008
+// fcntlf_setown_ex = 0x0000000f
+// fcntlf_setsig = 0x0000000a
+// fcntlf_shlck = 0x00000008
+// fcntlf_unlck = 0x00000002
+// fcntlf_wrlck = 0x00000001
+// fcntllock_ex = 0x00000002
+// fcntllock_mand = 0x00000020
+// fcntllock_nb = 0x00000004
+// fcntllock_read = 0x00000040
+// fcntllock_rw = 0x000000c0
+// fcntllock_sh = 0x00000001
+// fcntllock_un = 0x00000008
+// fcntllock_write = 0x00000080
+// fcntlo_accmode = 0x00000003
+// fcntlo_append = 0x00000400
+// fcntlo_cloexec = 0x00080000
+// fcntlo_creat = 0x00000040
+// fcntlo_direct = 0x00004000
+// fcntlo_directory = 0x00010000
+// fcntlo_dsync = 0x00001000
+// fcntlo_excl = 0x00000080
+// fcntlo_largefile = 0x00008000
+// fcntlo_ndelay = 0x00000800
+// fcntlo_noatime = 0x00040000
+// fcntlo_noctty = 0x00000100
+// fcntlo_nofollow = 0x00020000
+// fcntlo_nonblock = 0x00000800
+// fcntlo_path = 0x00200000
+// fcntlo_rdonly = 0x00000000
+// fcntlo_rdwr = 0x00000002
+// fcntlo_trunc = 0x00000200
+// fcntlo_wronly = 0x00000001
+// )
+
+/*
+Paraphrased from "man 2 waitid" on Linux
+
+ Upon successful return, waitid() fills in the
+ following fields of the siginfo_t structure
+ pointed to by infop:
+
+ si_pid, offset 0x10, int index 0x04:
+ The process ID of the child.
+
+ si_uid: offset 0x14, int index 0x05
+ The real user ID of the child.
+
+ si_signo: offset 0x00, int index 0x00
+ Always set to SIGCHLD.
+
+ si_status: ofset 0x18, int index 0x06
+ 1 the exit status of the child, as given to _exit(2)
+ (or exit(3)) (sc_sys.cld_exited)
+ 2 the signal that caused the child to terminate, stop,
+ or continue.
+ 3 The si_code field can be used to determine how to
+ interpret this field.
+
+ si_code, set to one of (enum Wi_si_code), offset 0x08, int index 0x02:
+ CLD_EXITED (child called _exit(2));
+ CLD_KILLED (child killed by signal);
+ CLD_DUMPED (child killed by signal, and dumped core);
+ CLD_STOPPED (child stopped by signal);
+ CLD_TRAPPED (traced child has trapped);
+ CLD_CONTINUED (child continued by SIGCONT).
+*/
+
+const (
+ wp_sys_wnohang = u64(0x00000001)
+ wp_sys_wuntraced = u64(0x00000002)
+ wp_sys_wstopped = u64(0x00000002)
+ wp_sys_wexited = u64(0x00000004)
+ wp_sys_wcontinued = u64(0x00000008)
+ wp_sys_wnowait = u64(0x01000000) // don't reap, just poll status.
+ wp_sys___wnothread = u64(0x20000000) // don't wait on children of other threads in this group
+ wp_sys___wall = u64(0x40000000) // wait on all children, regardless of type
+ wp_sys___wclone = u64(0x80000000) // wait only on non-sigchld children
+)
+
+// First argument to waitid:
+enum WiWhich {
+ p_all = 0
+ p_pid = 1
+ p_pgid = 2
+}
+
+enum WiSiCode {
+ cld_exited = 1 // child has exited
+ cld_killed = 2 // child was killed
+ cld_dumped = 3 // child terminated abnormally
+ cld_trapped = 4 // traced child has trapped
+ cld_stopped = 5 // child has stopped
+ cld_continued = 6 // stopped child has continued
+}
+
+fn split_int_errno(rc_in u64) (i64, Errno) {
+ rc := i64(rc_in)
+ if rc < 0 {
+ return i64(-1), Errno(-rc)
+ }
+ return rc, Errno.enoerror
+}
+
+// 0 sys_read
+fn sys_read(fd i64, buf &byte, count u64) (i64, Errno) {
+ return split_int_errno(sys_call3(0, u64(fd), u64(buf), count))
+}
+
+// 1 sys_write
+pub fn sys_write(fd i64, buf &byte, count u64) (i64, Errno) {
+ return split_int_errno(sys_call3(1, u64(fd), u64(buf), count))
+}
+
+// 2 sys_open
+fn sys_open(filename &byte, flags i64, mode int) (i64, Errno) {
+ return split_int_errno(sys_call3(2, u64(filename), u64(flags), u64(mode)))
+}
+
+// 3 sys_close
+fn sys_close(fd i64) Errno {
+ return Errno(-i64(sys_call1(3, u64(fd))))
+}
+
+// 9 sys_mmap
+fn sys_mmap(addr &byte, len u64, prot MemProt, flags MapFlags, fildes u64, off u64) (&byte, Errno) {
+ rc := sys_call6(9, u64(addr), len, u64(prot), u64(flags), fildes, off)
+ a, e := split_int_errno(rc)
+ return &byte(a), e
+}
+
+// 11 sys_munmap
+fn sys_munmap(addr voidptr, len u64) Errno {
+ return Errno(-sys_call2(11, u64(addr), len))
+}
+
+// 22 sys_pipe
+fn sys_pipe(filedes &int) Errno {
+ return Errno(sys_call1(22, u64(filedes)))
+}
+
+// 24 sys_sched_yield
+fn sys_sched_yield() Errno {
+ return Errno(sys_call0(24))
+}
+
+// 28 sys_madvise
+fn sys_madvise(addr voidptr, len u64, advice int) Errno {
+ return Errno(sys_call3(28, u64(addr), len, u64(advice)))
+}
+
+// 39 sys_getpid
+fn sys_getpid() int {
+ return int(sys_call0(39))
+}
+
+// 57 sys_fork
+fn sys_fork() int {
+ return int(sys_call0(57))
+}
+
+// 58 sys_vfork
+fn sys_vfork() int {
+ return int(sys_call0(58))
+}
+
+// 33 sys_dup2
+fn sys_dup2(oldfd int, newfd int) (i64, Errno) {
+ return split_int_errno(sys_call2(33, u64(oldfd), u64(newfd)))
+}
+
+// 59 sys_execve
+fn sys_execve(filename &byte, argv []&byte, envp []&byte) int {
+ return int(sys_call3(59, u64(filename), argv.data, envp.data))
+}
+
+// 60 sys_exit
+[noreturn]
+fn sys_exit(ec int) {
+ sys_call1(60, u64(ec))
+ for {}
+}
+
+// 102 sys_getuid
+fn sys_getuid() int {
+ return int(sys_call0(102))
+}
+
+// 247 sys_waitid
+fn sys_waitid(which WiWhich, pid int, infop &int, options int, ru voidptr) Errno {
+ return Errno(sys_call5(247, u64(which), u64(pid), u64(infop), u64(options), u64(ru)))
+}
+
+fn sys_call0(scn u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ syscall
+ ; =a (res)
+ ; a (scn)
+ }
+ return res
+}
+
+fn sys_call1(scn u64, arg1 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ }
+ return res
+}
+
+fn sys_call2(scn u64, arg1 u64, arg2 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ S (arg2)
+ }
+ return res
+}
+
+fn sys_call3(scn u64, arg1 u64, arg2 u64, arg3 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ S (arg2)
+ d (arg3)
+ }
+ return res
+}
+
+fn sys_call4(scn u64, arg1 u64, arg2 u64, arg3 u64, arg4 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ mov r10, arg4
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ S (arg2)
+ d (arg3)
+ r (arg4)
+ ; r10
+ }
+ return res
+}
+
+fn sys_call5(scn u64, arg1 u64, arg2 u64, arg3 u64, arg4 u64, arg5 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ mov r10, arg4
+ mov r8, arg5
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ S (arg2)
+ d (arg3)
+ r (arg4)
+ r (arg5)
+ ; r10
+ r8
+ }
+ return res
+}
+
+fn sys_call6(scn u64, arg1 u64, arg2 u64, arg3 u64, arg4 u64, arg5 u64, arg6 u64) u64 {
+ mut res := u64(0)
+ asm amd64 {
+ mov r10, arg4
+ mov r8, arg5
+ mov r9, arg6
+ syscall
+ ; =a (res)
+ ; a (scn)
+ D (arg1)
+ S (arg2)
+ d (arg3)
+ r (arg4)
+ r (arg5)
+ r (arg6)
+ ; r10
+ r8
+ r9
+ }
+ return res
+}
+
+asm amd64 {
+ .globl _start
+ _start:
+ call main
+ mov rax, 60
+ xor rdi, rdi
+ syscall
+ ret
+}