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Support compiling against lower SDK

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Reduce even more size for static binaries
This commit is contained in:
topjohnwu
2018-07-13 05:41:29 +08:00
parent 7779c3e372
commit 1affb91f17
8 changed files with 99 additions and 59 deletions
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44
native/jni/utils/xwrap.c
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@ -21,6 +21,7 @@
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/sendfile.h>
#include <sys/syscall.h>
#include "logging.h"
#include "utils.h"
@ -100,7 +101,7 @@ int xpipe2(int pipefd[2], int flags) {
}
int xsetns(int fd, int nstype) {
int ret = setns(fd, nstype);
int ret = (int) syscall(__NR_setns, fd, nstype);
if (ret == -1) {
PLOGE("setns");
}
@ -165,9 +166,14 @@ int xlisten(int sockfd, int backlog) {
}
int xaccept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) {
int fd = accept4(sockfd, addr, addrlen, flags);
#ifndef __NR_accept4
#ifdef __i386__
#define __NR_accept4 364
#endif
#endif
int fd = (int) syscall(__NR_accept4, sockfd, addr, addrlen, flags);
if (fd == -1) {
PLOGE("accept");
PLOGE("accept4");
}
return fd;
}
@ -212,8 +218,8 @@ ssize_t xrecvmsg(int sockfd, struct msghdr *msg, int flags) {
return rec;
}
int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
void *(*start_routine) (void *), void *arg) {
int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
void *(*start_routine) (void *), void *arg) {
errno = pthread_create(thread, attr, start_routine, arg);
if (errno) {
PLOGE("pthread_create");
@ -245,6 +251,14 @@ int xdup2(int oldfd, int newfd) {
return ret;
}
int xdup3(int oldfd, int newfd, int flags) {
int ret = (int) syscall(__NR_dup3, oldfd, newfd, flags);
if (ret == -1) {
PLOGE("dup3");
}
return ret;
}
ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz) {
ssize_t ret = readlink(pathname, buf, bufsiz);
if (ret == -1) {
@ -256,7 +270,7 @@ ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz) {
}
ssize_t xreadlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
ssize_t ret = syscall(__NR_readlinkat, dirfd, pathname, buf, bufsiz);
if (ret == -1) {
PLOGE("readlinkat %s", pathname);
} else {
@ -273,10 +287,26 @@ int xsymlink(const char *target, const char *linkpath) {
return ret;
}
int xsymlinkat(const char *target, int newdirfd, const char *linkpath) {
int ret = (int) syscall(__NR_symlinkat, target, newdirfd, linkpath);
if (ret == -1) {
PLOGE("symlinkat %s->%s", target, linkpath);
}
return ret;
}
int xlinkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath, int flags) {
int ret = (int) syscall(__NR_linkat, olddirfd, oldpath, newdirfd, newpath, flags);
if (ret == -1) {
PLOGE("linkat %s->%s", oldpath, newpath);
}
return ret;
}
int xmount(const char *source, const char *target,
const char *filesystemtype, unsigned long mountflags,
const void *data) {
int ret = mount(source, target, filesystemtype, MS_SILENT | mountflags, data);
int ret = mount(source, target, filesystemtype, mountflags, data);
if (ret == -1) {
PLOGE("mount %s->%s", source, target);
}