Add missing functions in bionic

native/jni/utils/include/missing.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <mntent.h>
+
+#define getline       __getline
+#define getdelim      __getdelim
+#define setns         __setns
+#define unshare       __unshare
+#define accept4       __accept4
+#define readlinkat    __readlinkat
+#define symlinkat     __symlinkat
+#define linkat        __linkat
+#define inotify_init1 __inotify_init1
+#define getmntent_r   __getmntent_r
+#define setmntent     __setmntent
+#define endmntent     __endmntent
+#define hasmntopt     __hasmntopt
+
+__BEGIN_DECLS
+
+ssize_t __getline(char **lineptr, size_t *n, FILE *stream);
+ssize_t __getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
+struct mntent *__getmntent_r(FILE* fp, struct mntent* e, char* buf, int buf_len);
+FILE *__setmntent(const char* path, const char* mode);
+int __endmntent(FILE* fp);
+char *__hasmntopt(const struct mntent* mnt, const char* opt);
+
+static inline int __setns(int fd, int nstype) {
+	return syscall(__NR_setns, fd, nstype);
+}
+
+static inline int __unshare(int flags) {
+	return syscall(__NR_unshare, flags);
+}
+
+static inline int __accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) {
+	return syscall(__NR_accept4, sockfd, addr, addrlen, flags);
+}
+
+static inline ssize_t __readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
+	return syscall(__NR_readlinkat, dirfd, pathname, buf, bufsiz);
+}
+
+static inline int __symlinkat(const char *target, int newdirfd, const char *linkpath) {
+	return syscall(__NR_symlinkat, target, newdirfd, linkpath);
+}
+
+static inline int __linkat(int olddirfd, const char *oldpath,
+		int newdirfd, const char *newpath, int flags) {
+	return syscall(__NR_linkat, olddirfd, oldpath, newdirfd, newpath, flags);
+}
+
+static inline int __inotify_init1(int flags) {
+	return syscall(__NR_inotify_init1, flags);
+}
+
+__END_DECLS

native/jni/utils/include/utils.h

@@ -12,6 +12,8 @@
 #include <poll.h>
 #include <mntent.h>
 
+#include "missing.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -87,12 +89,6 @@ void init_argv0(int argc, char **argv);
 void set_nice_name(const char *name);
 int parse_int(const char *s);
 
-#define getline __getline
-#define getdelim __getdelim
-
-ssize_t __getline(char **lineptr, size_t *n, FILE *stream);
-ssize_t __getdelim(char **lineptr, size_t *n, int delim, FILE *stream);
-
 // file.cpp
 
 #define do_align(p, a)  (((p) + (a) - 1) / (a) * (a))