diff options
Diffstat (limited to 'src/lib/libc/syscall.c')
-rw-r--r-- | src/lib/libc/syscall.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/lib/libc/syscall.c b/src/lib/libc/syscall.c new file mode 100644 index 0000000..61b3471 --- /dev/null +++ b/src/lib/libc/syscall.c @@ -0,0 +1,204 @@ +#include <kogata/debug.h> +#include <kogata/syscall.h> + +#include <kogata/printf.h> + +#include <string.h> + +static inline uint32_t call(uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t ss, uint32_t dd) { + uint32_t ret; + asm volatile("int $0x40" + :"=a"(ret) + :"a"(a),"b"(b),"c"(c),"d"(d),"S"(ss),"D"(dd)); + return ret; +} + +void dbg_print(const char* str) { + call(SC_DBG_PRINT, (uint32_t)str, strlen(str), 0, 0, 0); +} + +void dbg_printf(const char* fmt, ...) { + va_list ap; + char buffer[256]; + + va_start(ap, fmt); + vsnprintf(buffer, 256, fmt, ap); + va_end(ap); + + dbg_print(buffer); +} + +void yield() { + call(SC_YIELD, 0, 0, 0, 0, 0); +} + +void exit(int code) { + call(SC_EXIT, code, 0, 0, 0, 0); +} + +void usleep(int usecs) { + call(SC_USLEEP, usecs, 0, 0, 0, 0); +} + +bool sys_new_thread(void* eip, void* esp) { + return call(SC_NEW_THREAD, (uint32_t)eip, (uint32_t)esp, 0, 0, 0); +} + +void exit_thread() { + call(SC_EXIT_THREAD, 0, 0, 0, 0, 0); +} + +bool mmap(void* addr, size_t size, int mode) { + return call(SC_MMAP, (uint32_t)addr, size, mode, 0, 0); +} +bool mmap_file(fd_t file, size_t offset, void* addr, size_t size, int mode) { + return call(SC_MMAP_FILE, file, offset, (uint32_t)addr, size, mode); +} +bool mchmap(void* addr, int mode) { + return call(SC_MCHMAP, (uint32_t)addr, mode, 0, 0, 0); +} +bool munmap(void* addr) { + return call(SC_MUNMAP, (uint32_t)addr, 0, 0, 0, 0); +} + +bool create(const char* name, int type) { + return call(SC_CREATE, (uint32_t)name, strlen(name), type, 0, 0); +} +bool delete(const char* name) { + return call(SC_CREATE, (uint32_t)name, strlen(name), 0, 0, 0); +} +bool move(const char* oldname, const char* newname) { + return call(SC_MOVE, (uint32_t)oldname, strlen(oldname), (uint32_t)newname, strlen(newname), 0); +} +bool stat(const char* name, stat_t *s) { + return call(SC_STAT, (uint32_t)name, strlen(name), (uint32_t)s, 0, 0); +} + +fd_t open(const char* name, int mode) { + return call(SC_OPEN, (uint32_t)name, strlen(name), mode, 0, 0); +} +void close(fd_t file) { + call(SC_CLOSE, file, 0, 0, 0, 0); +} +size_t read(fd_t file, size_t offset, size_t len, char *buf) { + return call(SC_READ, file, offset, len, (uint32_t)buf, 0); +} +size_t write(fd_t file, size_t offset, size_t len, const char* buf) { + return call(SC_WRITE, file, offset, len, (uint32_t)buf, 0); +} +bool readdir(fd_t file, size_t ent_no, dirent_t *d) { + return call(SC_READDIR, file, ent_no, (uint32_t)d, 0, 0); +} +bool stat_open(fd_t file, stat_t *s) { + return call(SC_STAT_OPEN, file, (uint32_t)s, 0, 0, 0); +} +int ioctl(fd_t file, int command, void* data) { + return call(SC_IOCTL, file, command, (uint32_t)data, 0, 0); +} +int fctl(fd_t file, int command, void *data) { + return call(SC_FCTL, file, command, (uint32_t)data, 0, 0); +} +bool select(sel_fd_t* fds, size_t nfds, int timeout) { + return call(SC_SELECT, (uint32_t)fds, nfds, timeout, 0, 0); +} + +fd_pair_t make_channel(bool blocking) { + fd_pair_t ret; + call(SC_MK_CHANNEL, blocking, (uint32_t)&ret, 0, 0, 0); + return ret; +} +fd_t make_shm(size_t s) { + return call(SC_MK_SHM, s, 0, 0, 0, 0); +} +bool gen_token(fd_t file, token_t *tok) { + return call(SC_GEN_TOKEN, file, (uint32_t)tok, 0, 0, 0); +} +fd_t use_token(token_t *tok) { + return call(SC_USE_TOKEN, (uint32_t)tok, 0, 0, 0, 0); +} + +bool make_fs(const char* name, const char* driver, fd_t source, const char* options) { + volatile sc_make_fs_args_t args = { + .driver = driver, + .driver_strlen = strlen(driver), + .fs_name = name, + .fs_name_strlen = strlen(name), + .source_fd = source, + .opts = options, + .opts_strlen = strlen(options), + .bind_to_pid = 0, + }; + return call(SC_MAKE_FS, (uint32_t)&args, 0, 0, 0, 0); +} +bool fs_add_source(const char* fs, fd_t source, const char* options) { + return call(SC_FS_ADD_SRC, (uint32_t)fs, strlen(fs), source, (uint32_t)options, strlen(options)); +} +bool fs_subfs(const char* name, const char* orig_fs, const char* root, int ok_modes) { + volatile sc_subfs_args_t args = { + .new_name = name, + .new_name_strlen = strlen(name), + .from_fs = orig_fs, + .from_fs_strlen = strlen(orig_fs), + .root = root, + .root_strlen = strlen(root), + .ok_modes = ok_modes, + .bind_to_pid = 0 + }; + return call(SC_SUBFS, (uint32_t)(&args), 0, 0, 0, 0); +} +void fs_remove(const char* name) { + call(SC_RM_FS, (uint32_t)name, strlen(name), 0, 0, 0); +} + +pid_t new_proc() { + return call(SC_NEW_PROC, 0, 0, 0, 0, 0); +} +bool bind_fs(pid_t pid, const char* new_name, const char* fs) { + return call(SC_BIND_FS, pid, (uint32_t)new_name, strlen(new_name), (uint32_t)fs, strlen(fs)); +} +bool bind_subfs(pid_t pid, const char* new_name, const char* orig_fs, const char* root, int ok_modes) { + sc_subfs_args_t args = { + .new_name = new_name, + .new_name_strlen = strlen(new_name), + .from_fs = orig_fs, + .from_fs_strlen = strlen(orig_fs), + .root = root, + .root_strlen = strlen(root), + .ok_modes = ok_modes, + .bind_to_pid = pid + }; + return call(SC_BIND_SUBFS, (uint32_t)&args, 0, 0, 0, 0); +} +bool bind_make_fs(pid_t pid, const char* name, const char* driver, fd_t source, const char* options) { + sc_make_fs_args_t args = { + .driver = driver, + .driver_strlen = strlen(driver), + .fs_name = name, + .fs_name_strlen = strlen(name), + .source_fd = source, + .opts = options, + .opts_strlen = strlen(options), + .bind_to_pid = pid, + }; + return call(SC_BIND_MAKE_FS, (uint32_t)&args, 0, 0, 0, 0); +} +bool bind_fd(pid_t pid, fd_t new_fd, fd_t fd) { + return call(SC_BIND_FD, pid, new_fd, fd, 0, 0); +} +bool proc_exec(pid_t pid, const char* file) { + return call(SC_PROC_EXEC, pid, (uint32_t)file, strlen(file), 0, 0); +} +bool proc_status(pid_t pid, proc_status_t *s) { + return call(SC_PROC_STATUS, pid, (uint32_t)s, 0, 0, 0); +} +bool proc_kill(pid_t pid, proc_status_t *s) { + return call(SC_PROC_KILL, pid, (uint32_t)s, 0, 0, 0); +} +void proc_wait(pid_t pid, bool block, proc_status_t *s) { + call(SC_PROC_WAIT, pid, block, (uint32_t)s, 0, 0); +} + + + + +/* vim: set ts=4 sw=4 tw=0 noet :*/ |