user: implement mlibc as the libc, finally.
It's finally done.. Signed-off-by: kaguya <vpshinomiya@protonmail.com>
This commit is contained in:
kaguya
@@ -0,0 +1,15 @@
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#include <astral/syscall.h>
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#include <astral/archctl.h>
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#include <errno.h>
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#ifndef MLIBC_BUILDING_RTLD
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int arch_ctl(int func, void *arg) {
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long ret;
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long error = syscall(SYSCALL_ARCHCTL, &ret, func, (uint64_t)arg);
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if(error)
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errno = error;
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return error ? -1 : ret;
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}
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#endif
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@@ -0,0 +1,15 @@
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#include <stdint.h>
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#include <stdlib.h>
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#include <bits/ensure.h>
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#include <mlibc/elf/startup.h>
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extern "C" void __dlapi_enter(uintptr_t *);
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extern char **environ;
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extern "C" void __mlibc_entry(int (*main_fn)(int argc, char *argv[], char *env[]), uintptr_t *entry_stack) {
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__dlapi_enter(entry_stack);
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auto result = main_fn(mlibc::entry_stack.argc, mlibc::entry_stack.argv, environ);
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exit(result);
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}
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@@ -0,0 +1,916 @@
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#include <bits/ensure.h>
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#include <mlibc/debug.hpp>
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#include <mlibc/all-sysdeps.hpp>
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#include <errno.h>
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#include <astral/syscall.h>
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#include <astral/archctl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <asm/ioctls.h>
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#include <poll.h>
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#include <sys/select.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <dirent.h>
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namespace mlibc {
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int sys_setgroups(size_t size, const gid_t *list) {
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(void)size;
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(void)list;
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// TODO unstub
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return 0;
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}
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int sys_getgroups(size_t size, gid_t *list, int *ret) {
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(void)size;
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(void)list;
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(void)ret;
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// TODO unstub
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*ret = 0;
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return 0;
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}
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int sys_getsockopt(int fd, int layer, int number,
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void *__restrict buffer, socklen_t *__restrict size) {
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(void)size;
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(void)buffer;
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// TODO unstub
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mlibc::infoLogger() << "getsockopt: " << fd << " " << layer << " " << number << frg::endlog;
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return 0;
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}
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int sys_inet_configured(bool *ipv4, bool *ipv6) {
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// there is no ipv6 support in the kernel currently and no way of checking for configured interfaces
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*ipv4 = true;
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*ipv6 = false;
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return 0;
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}
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int sys_getcpu(int *cpu) {
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long ret;
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// can never fail
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syscall(SYSCALL_GETCPU, &ret);
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*cpu = ret;
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return 0;
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}
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int sys_flock(int fd, int options) {
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long r;
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return syscall(SYSCALL_FLOCK, &r, fd, options);
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}
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int sys_nice(int nice, int *ret) {
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long r = -1;
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long e = syscall(SYSCALL_NICE, &r, nice);
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*ret = r;
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return e;
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}
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int sys_shutdown(int sockfd, int how) {
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long ret;
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return syscall(SYSCALL_SHUTDOWN, &ret, sockfd, how);
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}
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int sys_tgkill(int pid, int tid, int sig) {
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long ret;
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return syscall(SYSCALL_KILLTHREAD, &ret, pid, tid, sig);
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}
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int sys_sigpending(sigset_t *set) {
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long ret;
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return syscall(SYSCALL_SIGPENDING, &ret, (uint64_t)set);
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}
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int sys_sigtimedwait(const sigset_t *__restrict set, siginfo_t *__restrict info, const struct timespec *__restrict timeout, int *out_signal) {
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long ret;
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long err = syscall(SYSCALL_SIGTIMEDWAIT, &ret, (uint64_t)set, (uint64_t)info, (uint64_t)timeout);
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*out_signal = ret;
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return err;
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}
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int sys_sigsuspend(const sigset_t *set) {
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long ret;
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return syscall(SYSCALL_SIGSUSPEND, &ret, (uint64_t)set);
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}
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int sys_vm_protect(void *pointer, size_t size, int prot) {
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long ret;
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return syscall(SYSCALL_MPROTECT, &ret, (uint64_t)pointer, size, prot);
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}
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int sys_setuid(uid_t id) {
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long ret;
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return syscall(SYSCALL_SETUID, &ret, id);
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}
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int sys_setgid(gid_t id) {
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long ret;
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return syscall(SYSCALL_SETGID, &ret, id);
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}
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int sys_seteuid(uid_t id) {
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long ret;
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return syscall(SYSCALL_SETEUID, &ret, id);
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}
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int sys_setegid(gid_t id) {
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long ret;
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return syscall(SYSCALL_SETEGID, &ret, id);
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}
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uid_t sys_getuid() {
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uid_t r, e, s;
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sys_getresuid(&r, &e, &s);
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return r;
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}
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uid_t sys_geteuid() {
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uid_t r, e, s;
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sys_getresuid(&r, &e, &s);
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return e;
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}
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gid_t sys_getgid() {
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gid_t r, e, s;
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sys_getresgid(&r, &e, &s);
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return r;
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}
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gid_t sys_getegid() {
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gid_t r, e, s;
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sys_getresgid(&r, &e, &s);
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return e;
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}
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int sys_setresuid(uid_t _ruid, uid_t _euid, uid_t _suid) {
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long ret;
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return syscall(SYSCALL_SETRESUID, &ret, _ruid, _euid, _suid);
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}
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int sys_setresgid(gid_t _rgid, gid_t _egid, gid_t _sgid) {
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long ret;
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return syscall(SYSCALL_SETRESGID, &ret, _rgid, _egid, _sgid);
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}
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int sys_getresuid(uid_t *ruid, uid_t *euid, uid_t *suid) {
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long ret;
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return syscall(SYSCALL_GETRESUID, &ret, (uint64_t)ruid, (uint64_t)euid, (uint64_t)suid);
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}
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int sys_getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid) {
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long ret;
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return syscall(SYSCALL_GETRESGID, &ret, (uint64_t)rgid, (uint64_t)egid, (uint64_t)sgid);
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}
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int sys_mknodat(int dirfd, const char *path, int mode, int dev) {
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long ret;
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return syscall(SYSCALL_MKNODAT, &ret, dirfd, (uint64_t)path, mode, dev);
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}
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int sys_mkfifoat(int dirfd, const char *path, mode_t mode) {
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return sys_mknodat(dirfd, path, S_IFIFO | mode, 0);
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}
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int sys_rmdir(const char *path) {
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return sys_unlinkat(AT_FDCWD, path, AT_REMOVEDIR);
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}
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int sys_pread(int fd, void *buf, size_t n, off_t off, ssize_t *bytes_read) {
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long readc;
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long error = syscall(SYSCALL_PREAD, &readc, fd, (uint64_t)buf, n, off);
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*bytes_read = readc;
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return error;
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}
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int sys_pwrite(int fd, const void *buf, size_t n, off_t off, ssize_t *bytes_written) {
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long writec;
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long error = syscall(SYSCALL_PWRITE, &writec, fd, (uint64_t)buf, n, off);
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*bytes_written = writec;
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return error;
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}
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int sys_getrlimit(int resource, struct rlimit *limit) {
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switch(resource) {
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case RLIMIT_NOFILE:
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limit->rlim_cur = RLIM_INFINITY;
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limit->rlim_max = RLIM_INFINITY;
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return 0;
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default:
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return EINVAL;
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}
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}
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#ifndef MLIBC_BUILDING_RTLD
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typedef struct {
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ino_t d_ino;
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off_t d_off;
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unsigned short d_reclen;
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unsigned char d_type;
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char d_name[1024];
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} dent_t;
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#endif
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int sys_pause() {
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long ret;
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return syscall(SYSCALL_PAUSE, &ret);
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}
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int sys_chroot(const char *path) {
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long ret;
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return syscall(SYSCALL_CHROOT, &ret, (uint64_t)path);
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}
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int sys_peername(int fd, struct sockaddr *addr_ptr, socklen_t max_addr_length, socklen_t *actual_length) {
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long ret;
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int len = max_addr_length;
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long error = syscall(SYSCALL_GETPEERNAME, &ret, fd, (uint64_t)addr_ptr, (uint64_t)&len);
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*actual_length = len;
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return error;
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}
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int sys_sockname(int fd, struct sockaddr *addr_ptr, socklen_t max_addr_length, socklen_t *actual_length) {
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long ret;
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int len = max_addr_length;
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long error = syscall(SYSCALL_GETSOCKNAME, &ret, fd, (uint64_t)addr_ptr, (uint64_t)&len);
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*actual_length = len;
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return error;
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}
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int sys_socketpair(int domain, int type_and_flags, int proto, int *fds) {
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long ret = 0;
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long err = syscall(SYSCALL_SOCKETPAIR, &ret, domain, type_and_flags, proto);
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if(err)
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return err;
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fds[0] = ret & 0xffffffff;
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fds[1] = (ret >> 32) & 0xffffffff;
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return err;
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}
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int sys_getitimer(int which, struct itimerval *curr_value) {
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long ret;
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return syscall(SYSCALL_GETITIMER, &ret, which, (uint64_t)curr_value);
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}
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int sys_setitimer(int which, const struct itimerval *new_value, struct itimerval *old_value) {
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long ret;
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return syscall(SYSCALL_SETITIMER, &ret, which, (uint64_t)new_value, (uint64_t)old_value);
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}
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#ifndef MLIBC_BUILDING_RTLD
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#define TTY_IOCTL_NAME 0x771101141113l
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#define TTY_NAME_MAX 32
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#define TTY_PREFIX "/dev/"
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int sys_ttyname(int fd, char * buffer, size_t size) {
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size_t prefixLen = strlen(TTY_PREFIX);
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if(size < TTY_NAME_MAX + prefixLen) {
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mlibc::panicLogger() << "ttyname size too small" << frg::endlog;
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__builtin_unreachable();
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}
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strcpy(buffer, TTY_PREFIX);
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int res;
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return sys_ioctl(fd, TTY_IOCTL_NAME, (void *)(buffer + prefixLen), &res);
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}
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#endif
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int sys_fsync(int fd) {
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long ret;
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return syscall(SYSCALL_FSYNC, &ret, fd);
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}
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int sys_fdatasync(int fd) {
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// TODO proper datasync syscall
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return sys_fsync(fd);
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}
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pid_t sys_getppid() {
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long ret;
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syscall(SYSCALL_GETPPID, &ret);
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return ret;
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}
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int sys_getsid(pid_t pid, pid_t *pgid) {
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long ret;
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long error = syscall(SYSCALL_GETSID, &ret, pid);
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*pgid = ret;
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return error;
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}
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int sys_getpgid(pid_t pid, pid_t *pgid) {
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long ret;
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long error = syscall(SYSCALL_GETPGID, &ret, pid);
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*pgid = ret;
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return error;
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}
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int sys_gethostname(char *buffer, size_t bufsize) {
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long ret;
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return syscall(SYSCALL_HOSTNAME, &ret, NULL, 0, (uint64_t)buffer, bufsize);
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}
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int sys_sethostname(const char *buffer, size_t bufsize) {
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long ret;
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return syscall(SYSCALL_HOSTNAME, &ret, (uint64_t)buffer, bufsize, NULL, 0);
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}
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int sys_uname(struct utsname *buf) {
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long ret;
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return syscall(SYSCALL_UNAME, &ret, (uint64_t)buf);
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}
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void sys_sync() {
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long ret;
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syscall(SYSCALL_SYNC, &ret);
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}
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#ifndef MLIBC_BUILDING_RTLD
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int sys_getentropy(void *buffer, size_t length) {
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int fd;
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int error = sys_open("/dev/urandom", O_RDONLY, 0, &fd);
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if(error)
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mlibc::panicLogger() << "/dev/urandom open error " << strerror(error) << frg::endlog;
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ssize_t bytes;
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error = sys_read(fd, buffer, length, &bytes);
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if(error) {
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mlibc::infoLogger() << "/dev/urandom read error " << strerror(error) << frg::endlog;
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return error;
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}
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sys_close(fd);
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return 0;
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}
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#endif
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int sys_kill(int pid, int signal) {
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long ret;
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return syscall(SYSCALL_KILL, &ret, pid, signal);
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}
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int sys_sigprocmask(int how, const sigset_t *__restrict set, sigset_t *__restrict retrieve) {
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long ret;
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return syscall(SYSCALL_SIGPROCMASK, &ret, how, (uint64_t)set, (uint64_t)retrieve);
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}
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int sys_sigaltstack(const stack_t *ss, stack_t *oss) {
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long ret;
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return syscall(SYSCALL_SIGALTSTACK, &ret, (uint64_t)ss, (uint64_t)oss);
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}
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#ifndef MLIBC_BUILDING_RTLD
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extern "C" void __mlibc_restorer();
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int sys_sigaction(int sig, const struct sigaction *__restrict act,
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struct sigaction *__restrict oldact) {
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long ret;
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struct sigaction newAction;
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if(act)
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memcpy(&newAction, act, sizeof(struct sigaction));
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if(act && (newAction.sa_flags & SA_RESTORER) == 0) {
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newAction.sa_restorer = __mlibc_restorer;
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newAction.sa_flags |= SA_RESTORER;
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}
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return syscall(SYSCALL_SIGACTION, &ret, sig, act ? (uint64_t)&newAction : 0, (uint64_t)oldact);
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}
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int sys_ptsname(int fd, char *buffer, size_t length) {
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int index;
|
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int tmp;
|
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if(int e = sys_ioctl(fd, TIOCGPTN, &index, &tmp); e)
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return e;
|
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|
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if((size_t)snprintf(buffer, length, "/dev/pts/%d", index) >= length) {
|
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return ERANGE;
|
||||
}
|
||||
|
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return 0;
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}
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||||
#endif
|
||||
|
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int sys_setpgid(pid_t pid, pid_t pgid) {
|
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long ret;
|
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return syscall(SYSCALL_SETPGID, &ret, pid, pgid);
|
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}
|
||||
|
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int sys_setsid(pid_t *out) {
|
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long ret;
|
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long error = syscall(SYSCALL_SETSID, &ret);
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*out = ret;
|
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return error;
|
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}
|
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|
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int sys_futex_tid() {
|
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long ret;
|
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syscall(SYSCALL_GETTID, &ret);
|
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return ret;
|
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}
|
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|
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pid_t sys_gettid() {
|
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long ret;
|
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syscall(SYSCALL_GETTID, &ret);
|
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return ret;
|
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}
|
||||
|
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#ifndef MLIBC_BUILDING_RTLD
|
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|
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[[noreturn]] void sys_thread_exit() {
|
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syscall(SYSCALL_THREADEXIT, nullptr);
|
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__builtin_unreachable();
|
||||
}
|
||||
|
||||
extern "C" void __mlibc_thread_entry();
|
||||
|
||||
int sys_clone(void *tcb, pid_t *pid_out, void *stack) {
|
||||
(void)tcb;
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_NEWTHREAD, &ret, (uintptr_t)__mlibc_thread_entry, (uintptr_t)stack);
|
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*pid_out = ret;
|
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return err;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
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int sys_listen(int fd, int backlog) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_LISTEN, &ret, fd, backlog);
|
||||
}
|
||||
|
||||
int sys_accept(int fd, int *newfd, struct sockaddr *addr_ptr, socklen_t *addr_length, int flags) {
|
||||
long ret;
|
||||
long error = syscall(SYSCALL_ACCEPT, &ret, fd, (uint64_t)addr_ptr, (uint64_t)addr_length, flags);
|
||||
*newfd = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_connect(int fd, const struct sockaddr *addr_ptr, socklen_t addr_length) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_CONNECT, &ret, fd, (uint64_t)addr_ptr, addr_length);
|
||||
}
|
||||
|
||||
int sys_msg_recv(int fd, struct msghdr *hdr, int flags, ssize_t *length) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_RECVMSG, &ret, fd, (uint64_t)hdr, flags);
|
||||
*length = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_setsockopt(int fd, int layer, int number, const void *buffer, socklen_t size) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_SETSOCKOPT, &ret, fd, layer, number, (uint64_t)buffer, size);
|
||||
}
|
||||
|
||||
int sys_msg_send(int fd, const struct msghdr *hdr, int flags, ssize_t *length) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_SENDMSG, &ret, fd, (uint64_t)hdr, flags);
|
||||
*length = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_bind(int fd, const struct sockaddr *addr_ptr, socklen_t addr_length) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_BIND, &ret, fd, (uint64_t)addr_ptr, addr_length);
|
||||
}
|
||||
|
||||
int sys_socket(int family, int type, int protocol, int *fd) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_SOCKET, &ret, family, type, protocol);
|
||||
*fd = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_renameat(int olddirfd, const char *old_path, int newdirfd, const char *new_path) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_RENAMEAT, &ret, olddirfd, (uint64_t)old_path, newdirfd, (uint64_t)new_path);
|
||||
}
|
||||
|
||||
int sys_rename(const char *path, const char *new_path) {
|
||||
return sys_renameat(AT_FDCWD, path, AT_FDCWD, new_path);
|
||||
}
|
||||
|
||||
int sys_utimensat(int dirfd, const char *pathname, const struct timespec times[2], int flags) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_UTIMENSAT, &ret, dirfd, (uint64_t)pathname, (uint64_t)times, flags);
|
||||
}
|
||||
|
||||
int sys_fchownat(int dirfd, const char *pathname, uid_t owner, gid_t group, int flags) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FCHOWNAT, &ret, dirfd, (uint64_t)pathname, owner, group, flags);
|
||||
}
|
||||
|
||||
int sys_mount(const char *source, const char *target, const char *fstype, unsigned long flags, const void *data) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_MOUNT, &ret, (uint64_t)source, (uint64_t)target, (uint64_t)fstype, flags, (uint64_t)data);
|
||||
}
|
||||
|
||||
int sys_ftruncate(int fd, size_t size) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FTRUNCATE, &ret, fd, size);
|
||||
}
|
||||
|
||||
int sys_sleep(time_t *secs, long *nanos) {
|
||||
struct timespec ts;
|
||||
ts.tv_sec = *secs;
|
||||
ts.tv_nsec = *nanos;
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_NANOSLEEP, &ret, (uintptr_t)&ts, (uintptr_t)&ts);
|
||||
*secs = ts.tv_sec;
|
||||
*nanos = ts.tv_nsec;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_tcgetattr(int fd, struct termios *attr){
|
||||
int res;
|
||||
return sys_ioctl(fd, TCGETS, (void *)attr, &res);
|
||||
}
|
||||
|
||||
int sys_tcsetattr(int fd, int act, const struct termios *attr){
|
||||
(void)act;
|
||||
int res;
|
||||
return sys_ioctl(fd, TCSETS, (void *)attr, &res);
|
||||
}
|
||||
|
||||
int sys_poll(struct pollfd *fds, nfds_t count, int timeout, int *num_events) {
|
||||
long ret;
|
||||
long error = syscall(SYSCALL_POLL, &ret, (uint64_t)fds, count, timeout);
|
||||
*num_events = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout, const sigset_t *sigmask, int *num_events) {
|
||||
long ret;
|
||||
long error = syscall(SYSCALL_PPOLL, &ret, (uint64_t)fds, nfds, (uint64_t)timeout, (uint64_t)sigmask);
|
||||
*num_events = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
#ifndef MLIBC_BUILDING_RTLD
|
||||
int sys_pselect(int num_fds, fd_set *read_set, fd_set *write_set, fd_set *except_set, const struct timespec *timeout, const sigset_t *sigmask, int *num_events) {
|
||||
pollfd *fds = (pollfd *)malloc(num_fds * sizeof(pollfd));
|
||||
|
||||
if(fds == NULL)
|
||||
return ENOMEM;
|
||||
|
||||
int actual_count = 0;
|
||||
|
||||
for(int fd = 0; fd < num_fds; ++fd) {
|
||||
short events = 0;
|
||||
if(read_set && FD_ISSET(fd, read_set)) {
|
||||
events |= POLLIN;
|
||||
}
|
||||
|
||||
if(write_set && FD_ISSET(fd, write_set)) {
|
||||
events |= POLLOUT;
|
||||
}
|
||||
|
||||
if(except_set && FD_ISSET(fd, except_set)) {
|
||||
events |= POLLPRI;
|
||||
}
|
||||
|
||||
if(events) {
|
||||
fds[actual_count].fd = fd;
|
||||
fds[actual_count].events = events;
|
||||
fds[actual_count].revents = 0;
|
||||
actual_count++;
|
||||
}
|
||||
}
|
||||
|
||||
int num;
|
||||
int err = sys_ppoll(fds, actual_count, timeout, sigmask, &num);
|
||||
|
||||
if(err) {
|
||||
free(fds);
|
||||
return err;
|
||||
}
|
||||
|
||||
#define READ_SET_POLLSTUFF (POLLIN | POLLHUP | POLLERR)
|
||||
#define WRITE_SET_POLLSTUFF (POLLOUT | POLLERR)
|
||||
#define EXCEPT_SET_POLLSTUFF (POLLPRI)
|
||||
|
||||
int return_count = 0;
|
||||
for(int fd = 0; fd < actual_count; ++fd) {
|
||||
int events = fds[fd].events;
|
||||
if((events & POLLIN) && (fds[fd].revents & READ_SET_POLLSTUFF) == 0) {
|
||||
FD_CLR(fds[fd].fd, read_set);
|
||||
events &= ~POLLIN;
|
||||
}
|
||||
|
||||
if((events & POLLOUT) && (fds[fd].revents & WRITE_SET_POLLSTUFF) == 0) {
|
||||
FD_CLR(fds[fd].fd, write_set);
|
||||
events &= ~POLLOUT;
|
||||
}
|
||||
|
||||
if((events & POLLPRI) && (fds[fd].revents & EXCEPT_SET_POLLSTUFF) == 0) {
|
||||
FD_CLR(fds[fd].fd, except_set);
|
||||
events &= ~POLLPRI;
|
||||
}
|
||||
|
||||
if(events)
|
||||
return_count++;
|
||||
}
|
||||
*num_events = return_count;
|
||||
free(fds);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
int sys_umask(mode_t mode, mode_t *old) {
|
||||
long ret;
|
||||
long error = syscall(SYSCALL_UMASK, &ret, mode);
|
||||
*old = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_fchmod(int fd, mode_t mode) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FCHMOD, &ret, fd, mode);
|
||||
}
|
||||
|
||||
int sys_fchmodat(int fd, const char *pathname, mode_t mode, int flags) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FCHMODAT, &ret, fd, (uint64_t)pathname, mode, flags);
|
||||
}
|
||||
|
||||
int sys_chmod(const char *pathname, mode_t mode) {
|
||||
return sys_fchmodat(AT_FDCWD, pathname, mode, 0);
|
||||
}
|
||||
|
||||
int sys_readlinkat(int dirfd, const char *path, void *buffer, size_t max_size, ssize_t *length) {
|
||||
long ret;
|
||||
long error = syscall(SYSCALL_READLINKAT, &ret, dirfd, (uint64_t)path, (uint64_t)buffer, max_size);
|
||||
*length = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_readlink(const char *path, void *buffer, size_t max_size, ssize_t *length) {
|
||||
return sys_readlinkat(AT_FDCWD, path, buffer, max_size, length);
|
||||
}
|
||||
|
||||
static int dolink(int oldfd, const char *oldpath, int newfd, const char *newpath, int flags, int type) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_LINKAT, &ret, oldfd, (uint64_t)oldpath, newfd, (uint64_t)newpath, flags, type);
|
||||
}
|
||||
|
||||
int sys_linkat(int olddirfd, const char *old_path, int newdirfd, const char *new_path, int flags) {
|
||||
return dolink(olddirfd, old_path, newdirfd, new_path, flags, 0);
|
||||
}
|
||||
|
||||
int sys_link(const char *old_path, const char *new_path) {
|
||||
return sys_linkat(AT_FDCWD, old_path, AT_FDCWD, new_path, 0);
|
||||
}
|
||||
|
||||
int sys_symlinkat(const char *target_path, int dirfd, const char *link_path) {
|
||||
return dolink(AT_FDCWD, target_path, dirfd, link_path, 0, 1);
|
||||
}
|
||||
|
||||
int sys_symlink(const char *target_path, const char *link_path) {
|
||||
return sys_symlinkat(target_path, AT_FDCWD, link_path);
|
||||
}
|
||||
|
||||
int sys_mkdirat(int dirfd, const char *path, mode_t mode) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_MKDIRAT, &ret, dirfd, (uint64_t)path, mode);
|
||||
}
|
||||
|
||||
int sys_mkdir(const char *path, mode_t mode) {
|
||||
return sys_mkdirat(AT_FDCWD, path, mode);
|
||||
}
|
||||
|
||||
int sys_ioctl(int fd, unsigned long request, void *arg, int *result) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_IOCTL, &ret, fd, request, (uint64_t)arg);
|
||||
*result = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_unlinkat(int fd, const char *path, int flags) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_UNLINKAT, &ret, fd, (uint64_t)path, flags);
|
||||
}
|
||||
|
||||
int sys_faccessat(int dirfd, const char *pathname, int mode, int flags){
|
||||
long ret;
|
||||
return syscall(SYSCALL_FACCESSAT, &ret, dirfd, (uint64_t)pathname, mode, flags);
|
||||
}
|
||||
|
||||
int sys_access(const char *path, int mode){
|
||||
return sys_faccessat(AT_FDCWD, path, mode, 0);
|
||||
}
|
||||
|
||||
int sys_pipe(int *fds, int flags) {
|
||||
long ret = 0;
|
||||
long err = syscall(SYSCALL_PIPE2, &ret, flags);
|
||||
if(err)
|
||||
return err;
|
||||
|
||||
fds[0] = ret & 0xffffffff;
|
||||
fds[1] = (ret >> 32) & 0xffffffff;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_chdir(const char *path) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_CHDIR, &ret, (uint64_t)path);
|
||||
}
|
||||
|
||||
int sys_fchdir(int fd) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FCHDIR, &ret, fd);
|
||||
}
|
||||
|
||||
int sys_fcntl(int fd, int request, va_list args, int *result) {
|
||||
long arg = va_arg(args, uint64_t);
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_FCNTL, &ret, fd, request, arg);
|
||||
*result = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_dup(int fd, int flags, int *newfd) {
|
||||
(void)flags;
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_DUP, &ret, fd);
|
||||
*newfd = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_dup2(int fd, int flags, int newfd) {
|
||||
(void)flags;
|
||||
long ret;
|
||||
return syscall(SYSCALL_DUP2, &ret, fd, newfd);
|
||||
}
|
||||
|
||||
int sys_read_entries(int handle, void *buffer, size_t max_size, size_t *bytes_read) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_GETDENTS, &ret, handle, (uint64_t)buffer, max_size);
|
||||
if(err)
|
||||
return err;
|
||||
*bytes_read = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_waitpid(pid_t pid, int *status, int flags, struct rusage *ru, pid_t *ret_pid) {
|
||||
(void)ru;
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_WAITPID, &ret, pid, (uint64_t)status, flags);
|
||||
*ret_pid = ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_execve(const char *path, char *const argv[], char *const envp[]) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_EXECVE, &ret, (uint64_t)path, (uint64_t)argv, (uint64_t)envp);
|
||||
}
|
||||
|
||||
int sys_fork(pid_t *pid) {
|
||||
long ret = 0;
|
||||
long error = syscall(SYSCALL_FORK, &ret);
|
||||
*pid = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_stat(fsfd_target fsfdt, int fd, const char *path, int flags, struct stat *statbuf) {
|
||||
long ret;
|
||||
switch (fsfdt) {
|
||||
case fsfd_target::path:
|
||||
return syscall(SYSCALL_FSTATAT, &ret, AT_FDCWD, (uint64_t)path, (uint64_t)statbuf, flags);
|
||||
case fsfd_target::fd:
|
||||
return syscall(SYSCALL_FSTAT, &ret, fd, (uint64_t)statbuf);
|
||||
case fsfd_target::fd_path:
|
||||
return syscall(SYSCALL_FSTATAT, &ret, fd, (uint64_t)path, (uint64_t)statbuf, flags);
|
||||
default:
|
||||
mlibc::infoLogger() << "mlibc: stat: Unknown fsfd_target: " << (int)fsfdt << frg::endlog;
|
||||
return ENOSYS;
|
||||
}
|
||||
}
|
||||
|
||||
pid_t sys_getpid() {
|
||||
long ret;
|
||||
syscall(SYSCALL_GETPID, &ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
void sys_libc_log(const char *message) {
|
||||
long ret;
|
||||
syscall(SYSCALL_PRINT, &ret, (uint64_t)message);
|
||||
}
|
||||
|
||||
[[noreturn]] void sys_libc_panic() {
|
||||
sys_libc_log("mlibc: panic");
|
||||
sys_exit(1);
|
||||
}
|
||||
|
||||
[[noreturn]] void sys_exit(int status) {
|
||||
syscall(SYSCALL_EXIT, NULL, status);
|
||||
__builtin_unreachable();
|
||||
}
|
||||
|
||||
int sys_tcb_set(void *pointer) {
|
||||
long r;
|
||||
return syscall(SYSCALL_ARCHCTL, &r, ARCH_CTL_SET_FSBASE, (uint64_t)pointer);
|
||||
}
|
||||
|
||||
#define FUTEX_WAIT 0
|
||||
#define FUTEX_WAKE 1
|
||||
|
||||
int sys_futex_wait(int *pointer, int expected, const struct timespec *time) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FUTEX, &ret, (uint64_t)pointer, FUTEX_WAIT, expected, (uint64_t)time);
|
||||
}
|
||||
|
||||
int sys_futex_wake(int *pointer) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_FUTEX, &ret, (uint64_t)pointer, FUTEX_WAKE, INT_MAX, NULL);
|
||||
}
|
||||
|
||||
int sys_anon_allocate(size_t size, void **pointer) {
|
||||
size += 4096 - (size % 4096);
|
||||
return sys_vm_map(NULL, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, 0, 0, pointer);
|
||||
}
|
||||
int sys_anon_free(void *pointer, size_t size) {
|
||||
size += 4096 - (size % 4096);
|
||||
return sys_vm_unmap(pointer, size);
|
||||
}
|
||||
|
||||
int sys_openat(int dirfd, const char *path, int flags, mode_t mode, int *fd) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_OPENAT, &ret, dirfd, (uint64_t)path, flags, mode);
|
||||
if(err)
|
||||
return err;
|
||||
*fd = ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sys_open(const char *pathname, int flags, mode_t mode, int *fd) {
|
||||
return sys_openat(AT_FDCWD, pathname, flags, mode, fd);
|
||||
};
|
||||
|
||||
int sys_open_dir(const char *path, int *handle) {
|
||||
return sys_open(path, O_DIRECTORY, 0, handle);
|
||||
}
|
||||
|
||||
int sys_read(int fd, void *buff, size_t count, ssize_t *bytes_read) {
|
||||
long readc;
|
||||
long error = syscall(SYSCALL_READ, &readc, fd, (uint64_t)buff, count);
|
||||
*bytes_read = readc;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_write(int fd, const void *buff, size_t count, ssize_t *bytes_written) {
|
||||
long writec;
|
||||
long error = syscall(SYSCALL_WRITE, &writec, fd, (uint64_t)buff, count);
|
||||
*bytes_written = writec;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_seek(int fd, off_t offset, int whence, off_t *new_offset) {
|
||||
long ret = 0;
|
||||
long error = syscall(SYSCALL_SEEK, &ret, fd, offset, whence);
|
||||
*new_offset = ret;
|
||||
return error;
|
||||
}
|
||||
|
||||
int sys_close(int fd) {
|
||||
long r;
|
||||
return syscall(SYSCALL_CLOSE, &r, fd);
|
||||
}
|
||||
|
||||
int sys_vm_map(void *hint, size_t size, int prot, int flags, int fd, off_t offset, void **window) {
|
||||
long ret;
|
||||
long err = syscall(SYSCALL_MMAP, &ret, (uint64_t)hint, size, prot, flags, fd, offset);
|
||||
*window = (void *)ret;
|
||||
return err;
|
||||
}
|
||||
|
||||
int sys_vm_unmap(void *pointer, size_t size) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_MUNMAP, &ret, (uintptr_t)pointer, size);
|
||||
}
|
||||
|
||||
int sys_isatty(int fd) {
|
||||
long ret;
|
||||
return syscall(SYSCALL_ISATTY, &ret, fd);
|
||||
}
|
||||
|
||||
int sys_clock_get(int clock, time_t *secs, long *nanos) {
|
||||
struct timespec ts;
|
||||
long ret;
|
||||
int err = syscall(SYSCALL_CLOCKGET, &ret, clock, (uint64_t)&ts);
|
||||
*secs = ts.tv_sec;
|
||||
*nanos = ts.tv_nsec;
|
||||
return err;
|
||||
}
|
||||
} // namespace mlibc
|
||||
Reference in New Issue
Block a user