From e724792a67bda5e7ca899395db236f5b2a16e366 Mon Sep 17 00:00:00 2001 From: Dwight Schauer <52499484+bogen85@users.noreply.github.com> Date: Sat, 23 Nov 2019 10:35:57 -0600 Subject: [PATCH] freestanding: add core linux syscalls and associated tests --- vlib/builtin/bare/.checks/.gitignore | 1 + vlib/builtin/bare/.checks/checks.v | 29 + vlib/builtin/bare/.checks/linuxsys/linuxsys.v | 83 +++ vlib/builtin/bare/.checks/readme.md | 5 + vlib/builtin/bare/.checks/sample_text1.txt | 1 + vlib/builtin/bare/.checks/string/string.v | 15 + vlib/builtin/bare/builtin_bare.v | 43 +- vlib/builtin/bare/linuxsys_bare.v | 598 ++++++++++++++++++ vlib/builtin/bare/string_bare.v | 13 +- 9 files changed, 779 insertions(+), 9 deletions(-) create mode 100644 vlib/builtin/bare/.checks/.gitignore create mode 100644 vlib/builtin/bare/.checks/checks.v create mode 100644 vlib/builtin/bare/.checks/linuxsys/linuxsys.v create mode 100644 vlib/builtin/bare/.checks/readme.md create mode 100644 vlib/builtin/bare/.checks/sample_text1.txt create mode 100644 vlib/builtin/bare/.checks/string/string.v create mode 100644 vlib/builtin/bare/linuxsys_bare.v diff --git a/vlib/builtin/bare/.checks/.gitignore b/vlib/builtin/bare/.checks/.gitignore new file mode 100644 index 0000000000..7780991965 --- /dev/null +++ b/vlib/builtin/bare/.checks/.gitignore @@ -0,0 +1 @@ +checks diff --git a/vlib/builtin/bare/.checks/checks.v b/vlib/builtin/bare/.checks/checks.v new file mode 100644 index 0000000000..8e9df4fc10 --- /dev/null +++ b/vlib/builtin/bare/.checks/checks.v @@ -0,0 +1,29 @@ +module main + +import os + +fn failed (msg string) { + println ("!!! failed: $msg") +} + +fn passed (msg string) { + println (">>> passed: $msg") +} + + +fn vcheck(vfile string) { + run_check := "v -freestanding --enable-globals run " + if 0 == os.system("$run_check $vfile/${vfile}.v") { + passed(run_check) + } else { + failed(run_check) + } + os.system("rm -f $vfile/$vfile") +} + +fn main() { + vcheck("string") + vcheck("linuxsys") + exit(0) +} + diff --git a/vlib/builtin/bare/.checks/linuxsys/linuxsys.v b/vlib/builtin/bare/.checks/linuxsys/linuxsys.v new file mode 100644 index 0000000000..2815313480 --- /dev/null +++ b/vlib/builtin/bare/.checks/linuxsys/linuxsys.v @@ -0,0 +1,83 @@ +module main + +__global fd [2]int +__global buffer [16]byte + +const ( + sample_text_file1 = "" +) + +fn check_read_write_pipe() { + /* + Checks the following system calls: + sys_pipe + sys_write + sys_read + sys_close + */ + println ("checking pipe read/write") + fd[0] = -1 + fd[1] = -1 + + assert fd[0] == -1 + assert fd[1] == -1 + + a := sys_pipe(intptr(fd)) + + assert a != -1 + + assert fd[0] != -1 + assert fd[1] != -1 + + test_data := "test_data" + b := test_data.len + 1 + mut c := sys_write (fd[1], test_data.str, u64(b)) + + assert c == b + + c = sys_read(fd[0], byteptr(buffer), u64(b)) + + assert c == b + + assert buffer[b-1] == 0 + + for i in 0..b { + assert test_data[i] == buffer[i] + } + + assert 0 == sys_close(fd[0]) + assert 0 == sys_close(fd[1]) + + assert 0 != sys_close(-1) + + println ("pipe read/write passed") +} + +fn check_read_file() { + /* + Checks the following system calls: + sys_read + sys_write + sys_close + */ + test_file := "sample_text1.txt" + sample_text := "Do not change this text.\n" + println ("checking read file") + fd := sys_open(test_file.str, int(fcntl.o_rdonly), 0) + assert fd > 0 + n := sample_text.len + c := sys_read(fd, buffer, u64(n*2)) + assert c == n + for i in 0..n { + assert sample_text[i] == buffer[i] + } + assert 0 == sys_close(fd) + println("read file passed") +} + +fn main() { + check_read_write_pipe() + check_read_file() + sys_exit(0) +} + diff --git a/vlib/builtin/bare/.checks/readme.md b/vlib/builtin/bare/.checks/readme.md new file mode 100644 index 0000000000..03c1b3019e --- /dev/null +++ b/vlib/builtin/bare/.checks/readme.md @@ -0,0 +1,5 @@ +In this directory: +``` +v run checks.v +``` + diff --git a/vlib/builtin/bare/.checks/sample_text1.txt b/vlib/builtin/bare/.checks/sample_text1.txt new file mode 100644 index 0000000000..f06e75a573 --- /dev/null +++ b/vlib/builtin/bare/.checks/sample_text1.txt @@ -0,0 +1 @@ +Do not change this text. diff --git a/vlib/builtin/bare/.checks/string/string.v b/vlib/builtin/bare/.checks/string/string.v new file mode 100644 index 0000000000..1f469cdc59 --- /dev/null +++ b/vlib/builtin/bare/.checks/string/string.v @@ -0,0 +1,15 @@ +module main + +fn check_string_eq () { + println ("checking string_eq") + assert "monkey" != "rat" + some_animal := "a bird" + assert some_animal == "a bird" + println ("string_eq passed") +} + +fn main () { + check_string_eq () + sys_exit(0) +} + diff --git a/vlib/builtin/bare/builtin_bare.v b/vlib/builtin/bare/builtin_bare.v index 3857028576..dd83bf654a 100644 --- a/vlib/builtin/bare/builtin_bare.v +++ b/vlib/builtin/bare/builtin_bare.v @@ -1,13 +1,44 @@ module builtin -//pub fn syscall5(number, arg1, arg2, arg3, arg4, arg5 voidptr) voidptr -//pub fn syscall6(number, arg1, arg2, arg3, arg4, arg5, arg6 voidptr) voidptr +pub fn isnil(p voidptr) bool { + return p == 0 +} + +pub fn print(s string) { + sys_write(1, s.str, u64(s.len)) +} + +pub fn println(s string) { + print(s) + sys_write(1, "\n".str, 1) +} + +// replaces panic when -debug arg is passed +fn panic_debug(line_no int, file, mod, fn_name, s string) { + println('================ V panic ================') + print(' module: ') + println('mod') + print(' function: ') + print(fn_name) + println('()') + println(' file: ') + println(file) + //println(' line: ${line_no}') + print(' message: ') + println(s) + println('=========================================') + sys_exit(1) +} pub fn panic(s string) { - //write(1, s.str, s.len) + print('V panic: ') + println(s) + sys_exit(1) } -pub fn panic_debug(s string) { - //write(1, s.str, s.len) +pub fn eprintln(s string) { + if isnil(s.str) { + panic('eprintln(NIL)') + } + println(s) } - diff --git a/vlib/builtin/bare/linuxsys_bare.v b/vlib/builtin/bare/linuxsys_bare.v new file mode 100644 index 0000000000..28ea813469 --- /dev/null +++ b/vlib/builtin/bare/linuxsys_bare.v @@ -0,0 +1,598 @@ +module builtin + +pub enum fcntl { + fd_cloexec = 0x00000001 + f_dupfd = 0x00000000 + f_exlck = 0x00000004 + f_getfd = 0x00000001 + f_getfl = 0x00000003 + f_getlk = 0x00000005 + f_getlk64 = 0x0000000c + f_getown = 0x00000009 + f_getowner_uids = 0x00000011 + f_getown_ex = 0x00000010 + f_getsig = 0x0000000b + f_ofd_getlk = 0x00000024 + f_ofd_setlk = 0x00000025 + f_ofd_setlkw = 0x00000026 + f_owner_pgrp = 0x00000002 + f_owner_pid = 0x00000001 + f_owner_tid = 0x00000000 + f_rdlck = 0x00000000 + f_setfd = 0x00000002 + f_setfl = 0x00000004 + f_setlk = 0x00000006 + f_setlk64 = 0x0000000d + f_setlkw = 0x00000007 + f_setlkw64 = 0x0000000e + f_setown = 0x00000008 + f_setown_ex = 0x0000000f + f_setsig = 0x0000000a + f_shlck = 0x00000008 + f_unlck = 0x00000002 + f_wrlck = 0x00000001 + lock_ex = 0x00000002 + lock_mand = 0x00000020 + lock_nb = 0x00000004 + lock_read = 0x00000040 + lock_rw = 0x000000c0 + lock_sh = 0x00000001 + lock_un = 0x00000008 + lock_write = 0x00000080 + o_accmode = 0x00000003 + o_append = 0x00000400 + o_cloexec = 0x00080000 + o_creat = 0x00000040 + o_direct = 0x00004000 + o_directory = 0x00010000 + o_dsync = 0x00001000 + o_excl = 0x00000080 + o_largefile = 0x00008000 + o_ndelay = 0x00000800 + o_noatime = 0x00040000 + o_noctty = 0x00000100 + o_nofollow = 0x00020000 + o_nonblock = 0x00000800 + o_path = 0x00200000 + o_rdonly = 0x00000000 + o_rdwr = 0x00000002 + o_trunc = 0x00000200 + o_wronly = 0x00000001 +} + +pub enum errno { + e2big = 0x00000007 + eacces = 0x0000000d + eagain = 0x0000000b + ebadf = 0x00000009 + ebusy = 0x00000010 + echild = 0x0000000a + edom = 0x00000021 + eexist = 0x00000011 + efault = 0x0000000e + efbig = 0x0000001b + eintr = 0x00000004 + einval = 0x00000016 + eio = 0x00000005 + eisdir = 0x00000015 + emfile = 0x00000018 + emlink = 0x0000001f + enfile = 0x00000017 + enodev = 0x00000013 + enoent = 0x00000002 + enoexec = 0x00000008 + enomem = 0x0000000c + enospc = 0x0000001c + enotblk = 0x0000000f + enotdir = 0x00000014 + enotty = 0x00000019 + enxio = 0x00000006 + eperm = 0x00000001 + epipe = 0x00000020 + erange = 0x00000022 + erofs = 0x0000001e + espipe = 0x0000001d + esrch = 0x00000003 + etxtbsy = 0x0000001a + exdev = 0x00000012 +} + +fn do_not_call_me_asm_keeper0() { + unsafe { + asm { + "\n" + "ret\n" + "" + ".intel_syntax noprefix\n" + ".globl sys_call0\n" + ".globl sys_call1, sys_call2, sys_call3\n" + ".globl sys_call4, sys_call5, sys_call6\n" + "" + "sys_call0:\n" + "mov rax,rdi\n" + "syscall\n" + "ret\n" + "" + "sys_call1:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "syscall\n" + "ret\n" + "" + "sys_call2:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "mov rsi,rdx\n" + "syscall\n" + "ret\n" + "" + "sys_call3:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "mov rsi,rdx\n" + "mov rdx,rcx\n" + "syscall\n" + "ret\n" + "" + "sys_call4:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "mov rsi,rdx\n" + "mov rdx,rcx\n" + "mov r10,r8\n" + "syscall\n" + "ret\n" + "" + "sys_call5:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "mov rsi,rdx\n" + "mov rdx,rcx\n" + "mov r10,r8\n" + "mov r8,r9\n" + "syscall\n" + "ret\n" + "" + "sys_call6:\n" + "mov rax,rdi\n" + "mov rdi,rsi\n" + "mov rsi,rdx\n" + "mov rdx,rcx\n" + "mov r10,r8\n" + "mov r8,r9\n" + "mov r9, [rsp+8]\n" + "syscall\n" + "ret\n" + "" + ".att_syntax \n" + } + } +} + +fn sys_call0(scn u64) u64 +fn sys_call1(scn, arg1 u64) u64 +fn sys_call2(scn, arg1, arg2 u64) u64 +fn sys_call3(scn, arg1, arg2, arg3 u64) u64 +fn sys_call4(scn, arg1, arg2, arg3, arg4 u64) u64 +fn sys_call5(scn, arg1, arg2, arg3, arg4, arg5 u64) u64 +fn sys_call6(scn, arg1, arg2, arg3, arg4, arg5, arg6 u64) u64 + +/* +these wrappers don't act exactly like the libc ones in regard to return value, so they have the raw syscall behavior. + + there is no errno + if zero is the expected value, a value > 0 is the error code + if a >=0 is a good value, then for errors, a negative error_code is returned +*/ + +// 0 sys_read unsigned int fd char *buf size_t count +pub fn sys_read (fd int, buf byteptr, count u64) i64 { + return i64(sys_call3(0, u64(fd), u64(buf), count)) +} + +// 1 sys_write unsigned int fd, const char *buf, size_t count +pub fn sys_write(fd int, buf byteptr, count u64) i64 { + return i64(sys_call3(1, u64(fd), u64(buf), count)) +} + +pub fn sys_open(filename byteptr, flags int, mode int) int { + //2 sys_open const char *filename int flags int mode + return int(sys_call3(2, u64(filename), u64(flags), u64(mode))) +} + +pub fn sys_close(fd int) int { + // 3 sys_close unsigned int fd + return int(sys_call1(3, u64(fd))) +} + +// 9 sys_mmap unsigned long addr unsigned long len unsigned long prot unsigned long flags unsigned long fd unsigned long off +pub fn sys_mmap(addr byteptr, len u64, prot u64, flags u64, fildes u64, off u64) voidptr { + return voidptr(sys_call6(9, u64(addr), len, prot, flags, fildes, off)) +} + +pub fn sys_munmap(addr voidptr, len u64) int { + // 11 sys_munmap unsigned long addr size_t len + return int(sys_call2(11, u64(addr), len)) +} + +// 22 sys_pipe int *filedes +pub fn sys_pipe(filedes intptr) int { + return int(sys_call1(22, u64(filedes))) +} + +// 24 sys_sched_yield +pub fn sys_sched_yield() int { + return int(sys_call0(24)) +} + +pub fn sys_madvise(addr voidptr, len u64, advice int) int { + // 28 sys_madvise unsigned long start size_t len_in int behavior + return int(sys_call3(28, u64(addr), len, u64(advice))) +} + +// 39 sys_getpid +pub fn sys_getpid() int { + return int(sys_call0(39)) +} + +// 57 sys_fork +pub fn sys_fork() int { + return int(sys_call0(57)) +} + +// 58 sys_vfork +pub fn sys_vfork() int { + return int(sys_call0(58)) +} + +// 33 sys_dup2 unsigned int oldfd unsigned int newfd +pub fn sys_dup2 (oldfd, newfd int) int { + return int(sys_call2(33, u64(oldfd),u64(newfd))) +} + + +//59 sys_execve const char *filename const char *const argv[] const char *const envp[] +//pub fn sys_execve(filename byteptr, argv []byteptr, envp []byteptr) int { +// return sys_call3(59, filename, argv, envp) +//} + + +// 60 sys_exit int error_code +pub fn sys_exit (ec int) { + sys_call1(60, u64(ec)) +} + +/* +A few years old, but still relevant +https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/ + +>0 sys_read unsigned int fd char *buf size_t count +>1 sys_write unsigned int fd const char *buf size_t count +2 sys_open const char *filename int flags int mode +>3 sys_close unsigned int fd +4 sys_stat const char *filename struct stat *statbuf +5 sys_fstat unsigned int fd struct stat *statbuf +6 sys_lstat fconst char *filename struct stat *statbuf +7 sys_poll struct poll_fd *ufds unsigned int nfds long timeout_msecs +8 sys_lseek unsigned int fd off_t offset unsigned int origin +>9 sys_mmap unsigned long addr unsigned long len unsigned long prot unsigned long flags unsigned long fd unsigned long off +10 sys_mprotect unsigned long start size_t len unsigned long prot +>11 sys_munmap unsigned long addr size_t len +12 sys_brk unsigned long brk +13 sys_rt_sigaction int sig const struct sigaction *act struct sigaction *oact size_t sigsetsize +14 sys_rt_sigprocmask int how sigset_t *nset sigset_t *oset size_t sigsetsize +15 sys_rt_sigreturn unsigned long __unused +16 sys_ioctl unsigned int fd unsigned int cmd unsigned long arg +17 sys_pread64 unsigned long fd char *buf size_t count loff_t pos +18 sys_pwrite64 unsigned int fd const char *buf size_t count loff_t pos +19 sys_readv unsigned long fd const struct iovec *vec unsigned long vlen +20 sys_writev unsigned long fd const struct iovec *vec unsigned long vlen +21 sys_access const char *filename int mode +>22 sys_pipe int *filedes +23 sys_select int n fd_set *inp fd_set *outp fd_set*exp struct timeval *tvp +>24 sys_sched_yield +25 sys_mremap unsigned long addr unsigned long old_len unsigned long new_len unsigned long flags unsigned long new_addr +26 sys_msync unsigned long start size_t len int flags +27 sys_mincore unsigned long start size_t len unsigned char *vec +>28 sys_madvise unsigned long start size_t len_in int behavior +29 sys_shmget key_t key size_t size int shmflg +30 sys_shmat int shmid char *shmaddr int shmflg +31 sys_shmctl int shmid int cmd struct shmid_ds *buf +32 sys_dup unsigned int fildes +33 sys_dup2 unsigned int oldfd unsigned int newfd +34 sys_pause +35 sys_nanosleep struct timespec *rqtp struct timespec *rmtp +36 sys_getitimer int which struct itimerval *value +37 sys_alarm unsigned int seconds +38 sys_setitimer int which struct itimerval *value struct itimerval *ovalue +>39 sys_getpid +40 sys_sendfile int out_fd int in_fd off_t *offset size_t count +41 sys_socket int family int type int protocol +42 sys_connect int fd struct sockaddr *uservaddr int addrlen +43 sys_accept int fd struct sockaddr *upeer_sockaddr int *upeer_addrlen +44 sys_sendto int fd void *buff size_t len unsigned flags struct sockaddr *addr int addr_len +45 sys_recvfrom int fd void *ubuf size_t size unsigned flags struct sockaddr *addr int *addr_len +46 sys_sendmsg int fd struct msghdr *msg unsigned flags +47 sys_recvmsg int fd struct msghdr *msg unsigned int flags +48 sys_shutdown int fd int how +49 sys_bind int fd struct sokaddr *umyaddr int addrlen +50 sys_listen int fd int backlog +51 sys_getsockname int fd struct sockaddr *usockaddr int *usockaddr_len +52 sys_getpeername int fd struct sockaddr *usockaddr int *usockaddr_len +53 sys_socketpair int family int type int protocol int *usockvec +54 sys_setsockopt int fd int level int optname char *optval int optlen +55 sys_getsockopt int fd int level int optname char *optval int *optlen +56 sys_clone unsigned long clone_flags unsigned long newsp void *parent_tid void *child_tid +>57 sys_fork +>58 sys_vfork +>59 sys_execve const char *filename const char *const argv[] const char *const envp[] +>60 sys_exit int error_code +61 sys_wait4 pid_t upid int *stat_addr int options struct rusage *ru +62 sys_kill pid_t pid int sig +63 sys_uname struct old_utsname *name +64 sys_semget key_t key int nsems int semflg +65 sys_semop int semid struct sembuf *tsops unsigned nsops +66 sys_semctl int semid int semnum int cmd union semun arg +67 sys_shmdt char *shmaddr +68 sys_msgget key_t key int msgflg +69 sys_msgsnd int msqid struct msgbuf *msgp size_t msgsz int msgflg +70 sys_msgrcv int msqid struct msgbuf *msgp size_t msgsz long msgtyp int msgflg +71 sys_msgctl int msqid int cmd struct msqid_ds *buf +72 sys_fcntl unsigned int fd unsigned int cmd unsigned long arg +73 sys_flock unsigned int fd unsigned int cmd +74 sys_fsync unsigned int fd +75 sys_fdatasync unsigned int fd +76 sys_truncate const char *path long length +77 sys_ftruncate unsigned int fd unsigned long length +78 sys_getdents unsigned int fd struct linux_dirent *dirent unsigned int count +79 sys_getcwd char *buf unsigned long size +80 sys_chdir const char *filename +81 sys_fchdir unsigned int fd +82 sys_rename const char *oldname const char *newname +83 sys_mkdir const char *pathname int mode +84 sys_rmdir const char *pathname +85 sys_creat const char *pathname int mode +86 sys_link const char *oldname const char *newname +87 sys_unlink const char *pathname +88 sys_symlink const char *oldname const char *newname +89 sys_readlink const char *path char *buf int bufsiz +90 sys_chmod const char *filename mode_t mode +91 sys_fchmod unsigned int fd mode_t mode +92 sys_chown const char *filename uid_t user gid_t group +93 sys_fchown unsigned int fd uid_t user gid_t group +94 sys_lchown const char *filename uid_t user gid_t group +95 sys_umask int mask +96 sys_gettimeofday struct timeval *tv struct timezone *tz +97 sys_getrlimit unsigned int resource struct rlimit *rlim +98 sys_getrusage int who struct rusage *ru +99 sys_sysinfo struct sysinfo *info +100 sys_times struct sysinfo *info +101 sys_ptrace long request long pid unsigned long addr unsigned long data +102 sys_getuid +103 sys_syslog int type char *buf int len +104 sys_getgid +105 sys_setuid uid_t uid +106 sys_setgid gid_t gid +107 sys_geteuid +108 sys_getegid +109 sys_setpgid pid_t pid pid_t pgid +110 sys_getppid +111 sys_getpgrp +112 sys_setsid +113 sys_setreuid uid_t ruid uid_t euid +114 sys_setregid gid_t rgid gid_t egid +115 sys_getgroups int gidsetsize gid_t *grouplist +116 sys_setgroups int gidsetsize gid_t *grouplist +117 sys_setresuid uid_t *ruid uid_t *euid uid_t *suid +118 sys_getresuid uid_t *ruid uid_t *euid uid_t *suid +119 sys_setresgid gid_t rgid gid_t egid gid_t sgid +120 sys_getresgid gid_t *rgid gid_t *egid gid_t *sgid +121 sys_getpgid pid_t pid +122 sys_setfsuid uid_t uid +123 sys_setfsgid gid_t gid +124 sys_getsid pid_t pid +125 sys_capget cap_user_header_t header cap_user_data_t dataptr +126 sys_capset cap_user_header_t header const cap_user_data_t data +127 sys_rt_sigpending sigset_t *set size_t sigsetsize +128 sys_rt_sigtimedwait const sigset_t *uthese siginfo_t *uinfo const struct timespec *uts size_t sigsetsize +129 sys_rt_sigqueueinfo pid_t pid int sig siginfo_t *uinfo +130 sys_rt_sigsuspend sigset_t *unewset size_t sigsetsize +131 sys_sigaltstack const stack_t *uss stack_t *uoss +132 sys_utime char *filename struct utimbuf *times +133 sys_mknod const char *filename umode_t mode unsigned dev +134 sys_uselib NOT IMPLEMENTED +135 sys_personality unsigned int personality +136 sys_ustat unsigned dev struct ustat *ubuf +137 sys_statfs const char *pathname struct statfs *buf +138 sys_fstatfs unsigned int fd struct statfs *buf +139 sys_sysfs int option unsigned long arg1 unsigned long arg2 +140 sys_getpriority int which int who +141 sys_setpriority int which int who int niceval +142 sys_sched_setparam pid_t pid struct sched_param *param +143 sys_sched_getparam pid_t pid struct sched_param *param +144 sys_sched_setscheduler pid_t pid int policy struct sched_param *param +145 sys_sched_getscheduler pid_t pid +146 sys_sched_get_priority_max int policy +147 sys_sched_get_priority_min int policy +148 sys_sched_rr_get_interval pid_t pid struct timespec *interval +149 sys_mlock unsigned long start size_t len +150 sys_munlock unsigned long start size_t len +151 sys_mlockall int flags +152 sys_munlockall +153 sys_vhangup +154 sys_modify_ldt int func void *ptr unsigned long bytecount +155 sys_pivot_root const char *new_root const char *put_old +156 sys__sysctl struct __sysctl_args *args +157 sys_prctl int option unsigned long arg2 unsigned long arg3 unsigned long arg4 unsigned long arg5 +158 sys_arch_prctl struct task_struct *task int code unsigned long *addr +159 sys_adjtimex struct timex *txc_p +160 sys_setrlimit unsigned int resource struct rlimit *rlim +161 sys_chroot const char *filename +162 sys_sync +163 sys_acct const char *name +164 sys_settimeofday struct timeval *tv struct timezone *tz +165 sys_mount char *dev_name char *dir_name char *type unsigned long flags void *data +166 sys_umount2 const char *target int flags +167 sys_swapon const char *specialfile int swap_flags +168 sys_swapoff const char *specialfile +169 sys_reboot int magic1 int magic2 unsigned int cmd void *arg +170 sys_sethostname char *name int len +171 sys_setdomainname char *name int len +172 sys_iopl unsigned int level struct pt_regs *regs +173 sys_ioperm unsigned long from unsigned long num int turn_on +174 sys_create_module REMOVED IN Linux 2.6 +175 sys_init_module void *umod unsigned long len const char *uargs +176 sys_delete_module const chat *name_user unsigned int flags +177 sys_get_kernel_syms REMOVED IN Linux 2.6 +178 sys_query_module REMOVED IN Linux 2.6 +179 sys_quotactl unsigned int cmd const char *special qid_t id void *addr +180 sys_nfsservctl NOT IMPLEMENTED +181 sys_getpmsg NOT IMPLEMENTED +182 sys_putpmsg NOT IMPLEMENTED +183 sys_afs_syscall NOT IMPLEMENTED +184 sys_tuxcall NOT IMPLEMENTED +185 sys_security NOT IMPLEMENTED +186 sys_gettid +187 sys_readahead int fd loff_t offset size_t count +188 sys_setxattr const char *pathname const char *name const void *value size_t size int flags +189 sys_lsetxattr const char *pathname const char *name const void *value size_t size int flags +190 sys_fsetxattr int fd const char *name const void *value size_t size int flags +191 sys_getxattr const char *pathname const char *name void *value size_t size +192 sys_lgetxattr const char *pathname const char *name void *value size_t size +193 sys_fgetxattr int fd const har *name void *value size_t size +194 sys_listxattr const char *pathname char *list size_t size +195 sys_llistxattr const char *pathname char *list size_t size +196 sys_flistxattr int fd char *list size_t size +197 sys_removexattr const char *pathname const char *name +198 sys_lremovexattr const char *pathname const char *name +199 sys_fremovexattr int fd const char *name +200 sys_tkill pid_t pid ing sig +201 sys_time time_t *tloc +202 sys_futex u32 *uaddr int op u32 val struct timespec *utime u32 *uaddr2 u32 val3 +203 sys_sched_setaffinity pid_t pid unsigned int len unsigned long *user_mask_ptr +204 sys_sched_getaffinity pid_t pid unsigned int len unsigned long *user_mask_ptr +205 sys_set_thread_area NOT IMPLEMENTED. Use arch_prctl +206 sys_io_setup unsigned nr_events aio_context_t *ctxp +207 sys_io_destroy aio_context_t ctx +208 sys_io_getevents aio_context_t ctx_id long min_nr long nr struct io_event *events +209 sys_io_submit aio_context_t ctx_id long nr struct iocb **iocbpp +210 sys_io_cancel aio_context_t ctx_id struct iocb *iocb struct io_event *result +211 sys_get_thread_area NOT IMPLEMENTED. Use arch_prctl +212 sys_lookup_dcookie u64 cookie64 long buf long len +213 sys_epoll_create int size +214 sys_epoll_ctl_old NOT IMPLEMENTED +215 sys_epoll_wait_old NOT IMPLEMENTED +216 sys_remap_file_pages unsigned long start unsigned long size unsigned long prot unsigned long pgoff unsigned long flags +217 sys_getdents64 unsigned int fd struct linux_dirent64 *dirent unsigned int count +218 sys_set_tid_address int *tidptr +219 sys_restart_syscall +220 sys_semtimedop int semid struct sembuf *tsops unsigned nsops const struct timespec *timeout +221 sys_fadvise64 int fd loff_t offset size_t len int advice +222 sys_timer_create const clockid_t which_clock struct sigevent *timer_event_spec timer_t *created_timer_id +223 sys_timer_settime timer_t timer_id int flags const struct itimerspec *new_setting struct itimerspec *old_setting +224 sys_timer_gettime timer_t timer_id struct itimerspec *setting +225 sys_timer_getoverrun timer_t timer_id +226 sys_timer_delete timer_t timer_id +227 sys_clock_settime const clockid_t which_clock const struct timespec *tp +228 sys_clock_gettime const clockid_t which_clock struct timespec *tp +229 sys_clock_getres const clockid_t which_clock struct timespec *tp +230 sys_clock_nanosleep const clockid_t which_clock int flags const struct timespec *rqtp struct timespec *rmtp +231 sys_exit_group int error_code +232 sys_epoll_wait int epfd struct epoll_event *events int maxevents int timeout +233 sys_epoll_ctl int epfd int op int fd struct epoll_event *event +234 sys_tgkill pid_t tgid pid_t pid int sig +235 sys_utimes char *filename struct timeval *utimes +236 sys_vserver NOT IMPLEMENTED +237 sys_mbind unsigned long start unsigned long len unsigned long mode unsigned long *nmask unsigned long maxnode unsigned flags +238 sys_set_mempolicy int mode unsigned long *nmask unsigned long maxnode +239 sys_get_mempolicy int *policy unsigned long *nmask unsigned long maxnode unsigned long addr unsigned long flags +240 sys_mq_open const char *u_name int oflag mode_t mode struct mq_attr *u_attr +241 sys_mq_unlink const char *u_name +242 sys_mq_timedsend mqd_t mqdes const char *u_msg_ptr size_t msg_len unsigned int msg_prio const stuct timespec *u_abs_timeout +243 sys_mq_timedreceive mqd_t mqdes char *u_msg_ptr size_t msg_len unsigned int *u_msg_prio const struct timespec *u_abs_timeout +244 sys_mq_notify mqd_t mqdes const struct sigevent *u_notification +245 sys_mq_getsetattr mqd_t mqdes const struct mq_attr *u_mqstat struct mq_attr *u_omqstat +246 sys_kexec_load unsigned long entry unsigned long nr_segments struct kexec_segment *segments unsigned long flags +247 sys_waitid int which pid_t upid struct siginfo *infop int options struct rusage *ru +248 sys_add_key const char *_type const char *_description const void *_payload size_t plen +249 sys_request_key const char *_type const char *_description const char *_callout_info key_serial_t destringid +250 sys_keyctl int option unsigned long arg2 unsigned long arg3 unsigned long arg4 unsigned long arg5 +251 sys_ioprio_set int which int who int ioprio +252 sys_ioprio_get int which int who +253 sys_inotify_init +254 sys_inotify_add_watch int fd const char *pathname u32 mask +255 sys_inotify_rm_watch int fd __s32 wd +256 sys_migrate_pages pid_t pid unsigned long maxnode const unsigned long *old_nodes const unsigned long *new_nodes +257 sys_openat int dfd const char *filename int flags int mode +258 sys_mkdirat int dfd const char *pathname int mode +259 sys_mknodat int dfd const char *filename int mode unsigned dev +260 sys_fchownat int dfd const char *filename uid_t user gid_t group int flag +261 sys_futimesat int dfd const char *filename struct timeval *utimes +262 sys_newfstatat int dfd const char *filename struct stat *statbuf int flag +263 sys_unlinkat int dfd const char *pathname int flag +264 sys_renameat int oldfd const char *oldname int newfd const char *newname +265 sys_linkat int oldfd const char *oldname int newfd const char *newname int flags +266 sys_symlinkat const char *oldname int newfd const char *newname +267 sys_readlinkat int dfd const char *pathname char *buf int bufsiz +268 sys_fchmodat int dfd const char *filename mode_t mode +269 sys_faccessat int dfd const char *filename int mode +270 sys_pselect6 int n fd_set *inp fd_set *outp fd_set *exp struct timespec *tsp void *sig +271 sys_ppoll struct pollfd *ufds unsigned int nfds struct timespec *tsp const sigset_t *sigmask size_t sigsetsize +272 sys_unshare unsigned long unshare_flags +273 sys_set_robust_list struct robust_list_head *head size_t len +274 sys_get_robust_list int pid struct robust_list_head **head_ptr size_t *len_ptr +275 sys_splice int fd_in loff_t *off_in int fd_out loff_t *off_out size_t len unsigned int flags +276 sys_tee int fdin int fdout size_t len unsigned int flags +277 sys_sync_file_range long fd loff_t offset loff_t bytes long flags +278 sys_vmsplice int fd const struct iovec *iov unsigned long nr_segs unsigned int flags +279 sys_move_pages pid_t pid unsigned long nr_pages const void **pages const int *nodes int *status int flags +280 sys_utimensat int dfd const char *filename struct timespec *utimes int flags +281 sys_epoll_pwait int epfd struct epoll_event *events int maxevents int timeout const sigset_t *sigmask size_t sigsetsize +282 sys_signalfd int ufd sigset_t *user_mask size_t sizemask +283 sys_timerfd_create int clockid int flags +284 sys_eventfd unsigned int count +285 sys_fallocate long fd long mode loff_t offset loff_t len +286 sys_timerfd_settime int ufd int flags const struct itimerspec *utmr struct itimerspec *otmr +287 sys_timerfd_gettime int ufd struct itimerspec *otmr +288 sys_accept4 int fd struct sockaddr *upeer_sockaddr int *upeer_addrlen int flags +289 sys_signalfd4 int ufd sigset_t *user_mask size_t sizemask int flags +290 sys_eventfd2 unsigned int count int flags +291 sys_epoll_create1 int flags +292 sys_dup3 unsigned int oldfd unsigned int newfd int flags +293 sys_pipe2 int *filedes int flags +294 sys_inotify_init1 int flags +295 sys_preadv unsigned long fd const struct iovec *vec unsigned long vlen unsigned long pos_l unsigned long pos_h +296 sys_pwritev unsigned long fd const struct iovec *vec unsigned long vlen unsigned long pos_l unsigned long pos_h +297 sys_rt_tgsigqueueinfo pid_t tgid pid_t pid int sig siginfo_t *uinfo +298 sys_perf_event_open struct perf_event_attr *attr_uptr pid_t pid int cpu int group_fd unsigned long flags +299 sys_recvmmsg int fd struct msghdr *mmsg unsigned int vlen unsigned int flags struct timespec *timeout +300 sys_fanotify_init unsigned int flags unsigned int event_f_flags +301 sys_fanotify_mark long fanotify_fd long flags __u64 mask long dfd long pathname +302 sys_prlimit64 pid_t pid unsigned int resource const struct rlimit64 *new_rlim struct rlimit64 *old_rlim +303 sys_name_to_handle_at int dfd const char *name struct file_handle *handle int *mnt_id int flag +304 sys_open_by_handle_at int dfd const char *name struct file_handle *handle int *mnt_id int flags +305 sys_clock_adjtime clockid_t which_clock struct timex *tx +306 sys_syncfs int fd +307 sys_sendmmsg int fd struct mmsghdr *mmsg unsigned int vlen unsigned int flags +308 sys_setns int fd int nstype +309 sys_getcpu unsigned *cpup unsigned *nodep struct getcpu_cache *unused +310 sys_process_vm_readv pid_t pid const struct iovec *lvec unsigned long liovcnt const struct iovec *rvec unsigned long riovcnt unsigned long flags +311 sys_process_vm_writev pid_t pid const struct iovec *lvec unsigned long liovcnt const struct iovcc *rvec unsigned long riovcnt unsigned long flags +312 sys_kcmp pid_t pid1 pid_t pid2 int type unsigned long idx1 unsigned long idx2 +313 sys_finit_module int fd const char __user *uargs int flags +314 sys_sched_setattr pid_t pid struct sched_attr __user *attr unsigned int flags +315 sys_sched_getattr pid_t pid struct sched_attr __user *attr unsigned int size unsigned int flags +316 sys_renameat2 int olddfd const char __user *oldname int newdfd const char __user *newname unsigned int flags +317 sys_seccomp unsigned int op unsigned int flags const char __user *uargs +318 sys_getrandom char __user *buf size_t count unsigned int flags +319 sys_memfd_create const char __user *uname_ptr unsigned int flags +320 sys_kexec_file_load int kernel_fd int initrd_fd unsigned long cmdline_len const char __user *cmdline_ptr unsigned long flags +321 sys_bpf int cmd union bpf_attr *attr unsigned int size +322 stub_execveat int dfd const char __user *filename const char __user *const __user *argv const char __user *const __user *envp int flags +323 userfaultfd int flags +324 membarrier int cmd int flags +325 mlock2 unsigned long start size_t len int flags +326 copy_file_range int fd_in loff_t __user *off_in int fd_out loff_t __user * off_out size_t len unsigned int flags +327 preadv2 unsigned long fd const struct iovec __user *vec unsigned long vlen unsigned long pos_l unsigned long pos_h int flags +328 pwritev2 unsigned long fd const struct iovec __user *vec unsigned long vlen unsigned long pos_l unsigned long pos_h int flags +*/ diff --git a/vlib/builtin/bare/string_bare.v b/vlib/builtin/bare/string_bare.v index f323bdcc72..19a5cdf88c 100644 --- a/vlib/builtin/bare/string_bare.v +++ b/vlib/builtin/bare/string_bare.v @@ -53,9 +53,16 @@ pub fn tos3(s *C.char) string { } } -pub fn println(s string) { - -} +pub fn string_eq (s1, s2 string) bool { + if s1.len != s2.len { return false } + for i in 0..s1.len { + if s1[i] != s2[i] { return false } + } + return true +} +pub fn string_ne (s1, s2 string) bool { + return !string_eq(s1,s2) +} /* pub fn (a string) clone() string {