user: implement mlibc as the libc, finally.

It's finally done.. Signed-off-by: kaguya <vpshinomiya@protonmail.com>
2026-05-02 03:31:49 -04:00
parent 2fa39ad85a
commit 9a9b91c940
2387 changed files with 152741 additions and 315 deletions
@@ -0,0 +1,84 @@
+
+#include <mlibc/file-io.hpp>
+#include <stdio_ext.h>
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+
+size_t __fbufsize(FILE *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+size_t __fpending(FILE *file_base) {
+	__ensure(file_base->__dirty_end >= file_base->__dirty_begin);
+	return file_base->__dirty_end - file_base->__dirty_begin;
+}
+
+int __flbf(FILE *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+int __freadable(FILE *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+int __fwritable(FILE *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+int __freading(FILE *file_base) {
+	return file_base->__io_mode == 0;
+}
+
+int __fwriting(FILE *file_base) {
+	return file_base->__io_mode == 1;
+}
+
+int __fsetlocking(FILE *file_base, int state) {
+	auto file = static_cast<mlibc::abstract_file *>(file_base);
+	bool oldstate = file->_lock.uselock;
+	if (state != FSETLOCKING_QUERY) {
+		if (state == FSETLOCKING_BYCALLER) {
+			file->_lock.uselock = false;
+		} else {
+			file->_lock.uselock = true;
+		}
+	}
+	if (oldstate) {
+		return FSETLOCKING_INTERNAL;
+	} else {
+		return FSETLOCKING_BYCALLER;
+	}
+}
+
+void _flushlbf(void) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+// The following functions are defined by musl.
+
+size_t __freadahead(FILE *file_base) {
+	if(file_base->__io_mode != 0) {
+		mlibc::infoLogger() << "mlibc: __freadahead() called but file is not open for reading" << frg::endlog;
+		return 0;
+	}
+	return file_base->__valid_limit - file_base->__offset;
+}
+
+const char *__freadptr(FILE *, size_t *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+void __freadptrinc(FILE *, size_t) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+void __fseterr(FILE *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+