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提交 2152390d 编写于 作者: A Anthony Liguori
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Merge commit 'linux-user/linux-user-for-upstream' into tmp-staging

上级 94c5495d 666bcd91
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Showing with 116 addition and 92 deletion
configure
浏览文件 @ 2152390d
......@@ -1249,8 +1249,7 @@ fi
# have syscall stubs for these implemented.
#
atfile=no
if [ "$linux_user" = "yes" ] ; then
cat > $TMPC << EOF
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#include <sys/types.h>
#include <fcntl.h>
......@@ -1263,9 +1262,8 @@ main(void)
return (unlinkat(AT_FDCWD, "nonexistent_file", 0));
}
EOF
if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null > /dev/null ; then
atfile=yes
fi
if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null > /dev/null ; then
atfile=yes
fi
# Check for inotify functions when we are building linux-user
......@@ -1274,8 +1272,7 @@ fi
# don't provide them even if kernel supports them.
#
inotify=no
if [ "$linux_user" = "yes" ] ; then
cat > $TMPC << EOF
cat > $TMPC << EOF
#include <sys/inotify.h>
int
......@@ -1285,9 +1282,8 @@ main(void)
return inotify_init();
}
EOF
if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null > /dev/null ; then
inotify=yes
fi
if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null > /dev/null ; then
inotify=yes
fi
# check if utimensat and futimens are supported
......
linux-user/main.c
浏览文件 @ 2152390d
......@@ -2432,6 +2432,7 @@ int main(int argc, char **argv, char **envp)
envlist_t *envlist = NULL;
const char *argv0 = NULL;
int i;
int ret;
if (argc <= 1)
usage();
......@@ -2636,9 +2637,10 @@ int main(int argc, char **argv, char **envp)
env->opaque = ts;
task_settid(ts);
if (loader_exec(filename, target_argv, target_environ, regs,
info, &bprm) != 0) {
printf("Error loading %s\n", filename);
ret = loader_exec(filename, target_argv, target_environ, regs,
info, &bprm);
if (ret != 0) {
printf("Error %d while loading %s\n", ret, filename);
_exit(1);
}
......
linux-user/qemu.h
浏览文件 @ 2152390d
......@@ -140,7 +140,7 @@ extern const char *qemu_uname_release;
* and envelope for the new program. 32 should suffice, this gives
* a maximum env+arg of 128kB w/4KB pages!
*/
#define MAX_ARG_PAGES 32
#define MAX_ARG_PAGES 33
/*
* This structure is used to hold the arguments that are
......
linux-user/syscall.c
浏览文件 @ 2152390d
......@@ -953,7 +953,7 @@ static abi_long do_pipe2(int host_pipe[], int flags)
#endif
}
static abi_long do_pipe(void *cpu_env, int pipedes, int flags)
static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, int flags)
{
int host_pipe[2];
abi_long ret;
......@@ -1498,13 +1498,17 @@ static abi_long do_bind(int sockfd, abi_ulong target_addr,
socklen_t addrlen)
{
void *addr;
abi_long ret;
if (addrlen < 0)
return -TARGET_EINVAL;
addr = alloca(addrlen+1);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = target_to_host_sockaddr(addr, target_addr, addrlen);
if (ret)
return ret;
return get_errno(bind(sockfd, addr, addrlen));
}
......@@ -1513,13 +1517,17 @@ static abi_long do_connect(int sockfd, abi_ulong target_addr,
socklen_t addrlen)
{
void *addr;
abi_long ret;
if (addrlen < 0)
return -TARGET_EINVAL;
addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = target_to_host_sockaddr(addr, target_addr, addrlen);
if (ret)
return ret;
return get_errno(connect(sockfd, addr, addrlen));
}
......@@ -1543,8 +1551,12 @@ static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
if (msgp->msg_name) {
msg.msg_namelen = tswap32(msgp->msg_namelen);
msg.msg_name = alloca(msg.msg_namelen);
target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
msg.msg_namelen);
if (ret) {
unlock_user_struct(msgp, target_msg, send ? 0 : 1);
return ret;
}
} else {
msg.msg_name = NULL;
msg.msg_namelen = 0;
......@@ -1586,12 +1598,19 @@ static abi_long do_accept(int fd, abi_ulong target_addr,
void *addr;
abi_long ret;
if (target_addr == 0)
return get_errno(accept(fd, NULL, NULL));
/* linux returns EINVAL if addrlen pointer is invalid */
if (get_user_u32(addrlen, target_addrlen_addr))
return -TARGET_EFAULT;
return -TARGET_EINVAL;
if (addrlen < 0)
return -TARGET_EINVAL;
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
return -TARGET_EINVAL;
addr = alloca(addrlen);
ret = get_errno(accept(fd, addr, &addrlen));
......@@ -1617,6 +1636,9 @@ static abi_long do_getpeername(int fd, abi_ulong target_addr,
if (addrlen < 0)
return -TARGET_EINVAL;
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
return -TARGET_EFAULT;
addr = alloca(addrlen);
ret = get_errno(getpeername(fd, addr, &addrlen));
......@@ -1636,15 +1658,15 @@ static abi_long do_getsockname(int fd, abi_ulong target_addr,
void *addr;
abi_long ret;
if (target_addr == 0)
return get_errno(accept(fd, NULL, NULL));
if (get_user_u32(addrlen, target_addrlen_addr))
return -TARGET_EFAULT;
if (addrlen < 0)
return -TARGET_EINVAL;
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
return -TARGET_EFAULT;
addr = alloca(addrlen);
ret = get_errno(getsockname(fd, addr, &addrlen));
......@@ -1688,7 +1710,11 @@ static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
return -TARGET_EFAULT;
if (target_addr) {
addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = target_to_host_sockaddr(addr, target_addr, addrlen);
if (ret) {
unlock_user(host_msg, msg, 0);
return ret;
}
ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
} else {
ret = get_errno(send(fd, host_msg, len, flags));
......@@ -1751,11 +1777,11 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
switch(num) {
case SOCKOP_socket:
{
int domain, type, protocol;
abi_ulong domain, type, protocol;
if (get_user_s32(domain, vptr)
|| get_user_s32(type, vptr + n)
|| get_user_s32(protocol, vptr + 2 * n))
if (get_user_ual(domain, vptr)
|| get_user_ual(type, vptr + n)
|| get_user_ual(protocol, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_socket(domain, type, protocol);
......@@ -1763,13 +1789,13 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_bind:
{
int sockfd;
abi_ulong sockfd;
abi_ulong target_addr;
socklen_t addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(target_addr, vptr + n)
|| get_user_u32(addrlen, vptr + 2 * n))
|| get_user_ual(addrlen, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_bind(sockfd, target_addr, addrlen);
......@@ -1777,13 +1803,13 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_connect:
{
int sockfd;
abi_ulong sockfd;
abi_ulong target_addr;
socklen_t addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(target_addr, vptr + n)
|| get_user_u32(addrlen, vptr + 2 * n))
|| get_user_ual(addrlen, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_connect(sockfd, target_addr, addrlen);
......@@ -1791,10 +1817,10 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_listen:
{
int sockfd, backlog;
abi_ulong sockfd, backlog;
if (get_user_s32(sockfd, vptr)
|| get_user_s32(backlog, vptr + n))
if (get_user_ual(sockfd, vptr)
|| get_user_ual(backlog, vptr + n))
return -TARGET_EFAULT;
ret = get_errno(listen(sockfd, backlog));
......@@ -1802,12 +1828,12 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_accept:
{
int sockfd;
abi_ulong sockfd;
abi_ulong target_addr, target_addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(target_addr, vptr + n)
|| get_user_u32(target_addrlen, vptr + 2 * n))
|| get_user_ual(target_addrlen, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_accept(sockfd, target_addr, target_addrlen);
......@@ -1815,12 +1841,12 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_getsockname:
{
int sockfd;
abi_ulong sockfd;
abi_ulong target_addr, target_addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(target_addr, vptr + n)
|| get_user_u32(target_addrlen, vptr + 2 * n))
|| get_user_ual(target_addrlen, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_getsockname(sockfd, target_addr, target_addrlen);
......@@ -1828,12 +1854,12 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_getpeername:
{
int sockfd;
abi_ulong sockfd;
abi_ulong target_addr, target_addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(target_addr, vptr + n)
|| get_user_u32(target_addrlen, vptr + 2 * n))
|| get_user_ual(target_addrlen, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_getpeername(sockfd, target_addr, target_addrlen);
......@@ -1841,12 +1867,12 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_socketpair:
{
int domain, type, protocol;
abi_ulong domain, type, protocol;
abi_ulong tab;
if (get_user_s32(domain, vptr)
|| get_user_s32(type, vptr + n)
|| get_user_s32(protocol, vptr + 2 * n)
if (get_user_ual(domain, vptr)
|| get_user_ual(type, vptr + n)
|| get_user_ual(protocol, vptr + 2 * n)
|| get_user_ual(tab, vptr + 3 * n))
return -TARGET_EFAULT;
......@@ -1855,15 +1881,15 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_send:
{
int sockfd;
abi_ulong sockfd;
abi_ulong msg;
size_t len;
int flags;
abi_ulong flags;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(msg, vptr + n)
|| get_user_ual(len, vptr + 2 * n)
|| get_user_s32(flags, vptr + 3 * n))
|| get_user_ual(flags, vptr + 3 * n))
return -TARGET_EFAULT;
ret = do_sendto(sockfd, msg, len, flags, 0, 0);
......@@ -1871,15 +1897,15 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_recv:
{
int sockfd;
abi_ulong sockfd;
abi_ulong msg;
size_t len;
int flags;
abi_ulong flags;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(msg, vptr + n)
|| get_user_ual(len, vptr + 2 * n)
|| get_user_s32(flags, vptr + 3 * n))
|| get_user_ual(flags, vptr + 3 * n))
return -TARGET_EFAULT;
ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
......@@ -1887,19 +1913,19 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_sendto:
{
int sockfd;
abi_ulong sockfd;
abi_ulong msg;
size_t len;
int flags;
abi_ulong flags;
abi_ulong addr;
socklen_t addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(msg, vptr + n)
|| get_user_ual(len, vptr + 2 * n)
|| get_user_s32(flags, vptr + 3 * n)
|| get_user_ual(flags, vptr + 3 * n)
|| get_user_ual(addr, vptr + 4 * n)
|| get_user_u32(addrlen, vptr + 5 * n))
|| get_user_ual(addrlen, vptr + 5 * n))
return -TARGET_EFAULT;
ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
......@@ -1907,19 +1933,19 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_recvfrom:
{
int sockfd;
abi_ulong sockfd;
abi_ulong msg;
size_t len;
int flags;
abi_ulong flags;
abi_ulong addr;
socklen_t addrlen;
if (get_user_s32(sockfd, vptr)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(msg, vptr + n)
|| get_user_ual(len, vptr + 2 * n)
|| get_user_s32(flags, vptr + 3 * n)
|| get_user_ual(flags, vptr + 3 * n)
|| get_user_ual(addr, vptr + 4 * n)
|| get_user_u32(addrlen, vptr + 5 * n))
|| get_user_ual(addrlen, vptr + 5 * n))
return -TARGET_EFAULT;
ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
......@@ -1927,10 +1953,10 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_shutdown:
{
int sockfd, how;
abi_ulong sockfd, how;
if (get_user_s32(sockfd, vptr)
|| get_user_s32(how, vptr + n))
if (get_user_ual(sockfd, vptr)
|| get_user_ual(how, vptr + n))
return -TARGET_EFAULT;
ret = get_errno(shutdown(sockfd, how));
......@@ -1939,13 +1965,13 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
case SOCKOP_sendmsg:
case SOCKOP_recvmsg:
{
int fd;
abi_ulong fd;
abi_ulong target_msg;
int flags;
abi_ulong flags;
if (get_user_s32(fd, vptr)
if (get_user_ual(fd, vptr)
|| get_user_ual(target_msg, vptr + n)
|| get_user_s32(flags, vptr + 2 * n))
|| get_user_ual(flags, vptr + 2 * n))
return -TARGET_EFAULT;
ret = do_sendrecvmsg(fd, target_msg, flags,
......@@ -1954,17 +1980,17 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_setsockopt:
{
int sockfd;
int level;
int optname;
abi_ulong sockfd;
abi_ulong level;
abi_ulong optname;
abi_ulong optval;
socklen_t optlen;
if (get_user_s32(sockfd, vptr)
|| get_user_s32(level, vptr + n)
|| get_user_s32(optname, vptr + 2 * n)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(level, vptr + n)
|| get_user_ual(optname, vptr + 2 * n)
|| get_user_ual(optval, vptr + 3 * n)
|| get_user_u32(optlen, vptr + 4 * n))
|| get_user_ual(optlen, vptr + 4 * n))
return -TARGET_EFAULT;
ret = do_setsockopt(sockfd, level, optname, optval, optlen);
......@@ -1972,17 +1998,17 @@ static abi_long do_socketcall(int num, abi_ulong vptr)
break;
case SOCKOP_getsockopt:
{
int sockfd;
int level;
int optname;
abi_ulong sockfd;
abi_ulong level;
abi_ulong optname;
abi_ulong optval;
socklen_t optlen;
if (get_user_s32(sockfd, vptr)
|| get_user_s32(level, vptr + n)
|| get_user_s32(optname, vptr + 2 * n)
if (get_user_ual(sockfd, vptr)
|| get_user_ual(level, vptr + n)
|| get_user_ual(optname, vptr + 2 * n)
|| get_user_ual(optval, vptr + 3 * n)
|| get_user_u32(optlen, vptr + 4 * n))
|| get_user_ual(optlen, vptr + 4 * n))
return -TARGET_EFAULT;
ret = do_getsockopt(sockfd, level, optname, optval, optlen);
......@@ -2215,7 +2241,7 @@ static inline abi_long do_semctl(int semid, int semnum, int cmd,
{
union semun arg;
struct semid_ds dsarg;
unsigned short *array;
unsigned short *array = NULL;
struct seminfo seminfo;
abi_long ret = -TARGET_EINVAL;
abi_long err;
......@@ -4529,7 +4555,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
case TARGET_NR_access:
if (!(p = lock_user_string(arg1)))
goto efault;
ret = get_errno(access(p, arg2));
ret = get_errno(access(path(p), arg2));
unlock_user(p, arg1, 0);
break;
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
......@@ -5021,8 +5047,8 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
if (!is_error(ret)) {
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
goto efault;
rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
rlim.rlim_max = tswapl(target_rlim->rlim_max);
target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
target_rlim->rlim_max = tswapl(rlim.rlim_max);
unlock_user_struct(target_rlim, arg2, 1);
}
}
......
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