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endian fixes by Ulrich weigand

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@64 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-03-29 17:22:23 +00:00
parent 500dab07e8
commit 7854b05654
3 changed files with 399 additions and 60 deletions
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405
linux-user/syscall.c
View File

@ -26,6 +26,7 @@
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
@ -40,6 +41,7 @@
#include <sys/uio.h>
#include <sys/poll.h>
//#include <sys/user.h>
#include <netinet/tcp.h>
#define termios host_termios
#define winsize host_winsize
@ -166,7 +168,7 @@ static long do_brk(char *new_brk)
static inline fd_set *target_to_host_fds(fd_set *fds,
target_long *target_fds, int n)
{
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
return (fd_set *)target_fds;
#else
int i, b;
@ -188,7 +190,7 @@ static inline fd_set *target_to_host_fds(fd_set *fds,
static inline void host_to_target_fds(target_long *target_fds,
fd_set *fds, int n)
{
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
/* nothing to do */
#else
int i, nw, j, k;
@ -256,55 +258,267 @@ static long do_select(long n,
return ret;
}
static long do_socketcall(int num, long *vptr)
static inline void target_to_host_sockaddr(struct sockaddr *addr,
struct target_sockaddr *target_addr,
socklen_t len)
{
memcpy(addr, target_addr, len);
addr->sa_family = tswap16(target_addr->sa_family);
}
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
struct sockaddr *addr,
socklen_t len)
{
memcpy(target_addr, addr, len);
target_addr->sa_family = tswap16(addr->sa_family);
}
static inline void target_to_host_cmsg(struct msghdr *msgh,
struct target_msghdr *target_msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
socklen_t space = 0;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = tswapl(target_cmsg->cmsg_len)
- TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
space += CMSG_SPACE(len);
if (space > msgh->msg_controllen) {
space -= CMSG_SPACE(len);
gemu_log("Host cmsg overflow");
break;
}
cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
cmsg->cmsg_len = CMSG_LEN(len);
if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(data, target_data, len);
} else {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++)
fd[i] = tswap32(target_fd[i]);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
}
msgh->msg_controllen = space;
}
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
struct msghdr *msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
socklen_t space = 0;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
space += TARGET_CMSG_SPACE(len);
if (space > tswapl(target_msgh->msg_controllen)) {
space -= TARGET_CMSG_SPACE(len);
gemu_log("Target cmsg overflow");
break;
}
target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(target_data, data, len);
} else {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++)
target_fd[i] = tswap32(fd[i]);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
}
msgh->msg_controllen = tswapl(space);
}
static long do_setsockopt(int sockfd, int level, int optname,
void *optval, socklen_t optlen)
{
if (level == SOL_TCP) {
/* TCP options all take an 'int' value. */
int val;
if (optlen < sizeof(uint32_t))
return -EINVAL;
val = tswap32(*(uint32_t *)optval);
return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
}
else if (level != SOL_SOCKET) {
gemu_log("Unsupported setsockopt level: %d\n", level);
return -ENOSYS;
}
switch (optname) {
/* Options with 'int' argument. */
case SO_DEBUG:
case SO_REUSEADDR:
case SO_TYPE:
case SO_ERROR:
case SO_DONTROUTE:
case SO_BROADCAST:
case SO_SNDBUF:
case SO_RCVBUF:
case SO_KEEPALIVE:
case SO_OOBINLINE:
case SO_NO_CHECK:
case SO_PRIORITY:
case SO_BSDCOMPAT:
case SO_PASSCRED:
case SO_TIMESTAMP:
case SO_RCVLOWAT:
case SO_RCVTIMEO:
case SO_SNDTIMEO:
{
int val;
if (optlen < sizeof(uint32_t))
return -EINVAL;
val = tswap32(*(uint32_t *)optval);
return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
}
default:
gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
return -ENOSYS;
}
}
static long do_getsockopt(int sockfd, int level, int optname,
void *optval, socklen_t *optlen)
{
gemu_log("getsockopt not yet supported\n");
return -ENOSYS;
}
static long do_socketcall(int num, int32_t *vptr)
{
long ret;
switch(num) {
case SOCKOP_socket:
ret = get_errno(socket(vptr[0], vptr[1], vptr[2]));
{
int domain = tswap32(vptr[0]);
int type = tswap32(vptr[1]);
int protocol = tswap32(vptr[2]);
ret = get_errno(socket(domain, type, protocol));
}
break;
case SOCKOP_bind:
ret = get_errno(bind(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
{
int sockfd = tswap32(vptr[0]);
void *target_addr = (void *)tswap32(vptr[1]);
socklen_t addrlen = tswap32(vptr[2]);
void *addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = get_errno(bind(sockfd, addr, addrlen));
}
break;
case SOCKOP_connect:
ret = get_errno(connect(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
{
int sockfd = tswap32(vptr[0]);
void *target_addr = (void *)tswap32(vptr[1]);
socklen_t addrlen = tswap32(vptr[2]);
void *addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = get_errno(connect(sockfd, addr, addrlen));
}
break;
case SOCKOP_listen:
ret = get_errno(listen(vptr[0], vptr[1]));
{
int sockfd = tswap32(vptr[0]);
int backlog = tswap32(vptr[1]);
ret = get_errno(listen(sockfd, backlog));
}
break;
case SOCKOP_accept:
{
socklen_t size;
size = tswap32(*(int32_t *)vptr[2]);
ret = get_errno(accept(vptr[0], (struct sockaddr *)vptr[1], &size));
if (!is_error(ret))
*(int32_t *)vptr[2] = size;
int sockfd = tswap32(vptr[0]);
void *target_addr = (void *)tswap32(vptr[1]);
uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
socklen_t addrlen = tswap32(*target_addrlen);
void *addr = alloca(addrlen);
ret = get_errno(accept(sockfd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
*target_addrlen = tswap32(addrlen);
}
}
break;
case SOCKOP_getsockname:
{
socklen_t size;
size = tswap32(*(int32_t *)vptr[2]);
ret = get_errno(getsockname(vptr[0], (struct sockaddr *)vptr[1], &size));
if (!is_error(ret))
*(int32_t *)vptr[2] = size;
int sockfd = tswap32(vptr[0]);
void *target_addr = (void *)tswap32(vptr[1]);
uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
socklen_t addrlen = tswap32(*target_addrlen);
void *addr = alloca(addrlen);
ret = get_errno(getsockname(sockfd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
*target_addrlen = tswap32(addrlen);
}
}
break;
case SOCKOP_getpeername:
{
socklen_t size;
size = tswap32(*(int32_t *)vptr[2]);
ret = get_errno(getpeername(vptr[0], (struct sockaddr *)vptr[1], &size));
if (!is_error(ret))
*(int32_t *)vptr[2] = size;
int sockfd = tswap32(vptr[0]);
void *target_addr = (void *)tswap32(vptr[1]);
uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
socklen_t addrlen = tswap32(*target_addrlen);
void *addr = alloca(addrlen);
ret = get_errno(getpeername(sockfd, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
*target_addrlen = tswap32(addrlen);
}
}
break;
case SOCKOP_socketpair:
{
int domain = tswap32(vptr[0]);
int type = tswap32(vptr[1]);
int protocol = tswap32(vptr[2]);
int32_t *target_tab = (void *)tswap32(vptr[3]);
int tab[2];
int32_t *target_tab = (int32_t *)vptr[3];
ret = get_errno(socketpair(vptr[0], vptr[1], vptr[2], tab));
ret = get_errno(socketpair(domain, type, protocol, tab));
if (!is_error(ret)) {
target_tab[0] = tswap32(tab[0]);
target_tab[1] = tswap32(tab[1]);
@ -312,27 +526,64 @@ static long do_socketcall(int num, long *vptr)
}
break;
case SOCKOP_send:
ret = get_errno(send(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
{
int sockfd = tswap32(vptr[0]);
void *msg = (void *)tswap32(vptr[1]);
size_t len = tswap32(vptr[2]);
int flags = tswap32(vptr[3]);
ret = get_errno(send(sockfd, msg, len, flags));
}
break;
case SOCKOP_recv:
ret = get_errno(recv(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
{
int sockfd = tswap32(vptr[0]);
void *msg = (void *)tswap32(vptr[1]);
size_t len = tswap32(vptr[2]);
int flags = tswap32(vptr[3]);
ret = get_errno(recv(sockfd, msg, len, flags));
}
break;
case SOCKOP_sendto:
ret = get_errno(sendto(vptr[0], (void *)vptr[1], vptr[2], vptr[3],
(struct sockaddr *)vptr[4], vptr[5]));
{
int sockfd = tswap32(vptr[0]);
void *msg = (void *)tswap32(vptr[1]);
size_t len = tswap32(vptr[2]);
int flags = tswap32(vptr[3]);
void *target_addr = (void *)tswap32(vptr[4]);
socklen_t addrlen = tswap32(vptr[5]);
void *addr = alloca(addrlen);
target_to_host_sockaddr(addr, target_addr, addrlen);
ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
}
break;
case SOCKOP_recvfrom:
{
socklen_t size;
size = tswap32(*(int32_t *)vptr[5]);
ret = get_errno(recvfrom(vptr[0], (void *)vptr[1], vptr[2],
vptr[3], (struct sockaddr *)vptr[4], &size));
if (!is_error(ret))
*(int32_t *)vptr[5] = size;
int sockfd = tswap32(vptr[0]);
void *msg = (void *)tswap32(vptr[1]);
size_t len = tswap32(vptr[2]);
int flags = tswap32(vptr[3]);
void *target_addr = (void *)tswap32(vptr[4]);
uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
socklen_t addrlen = tswap32(*target_addrlen);
void *addr = alloca(addrlen);
ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
*target_addrlen = tswap32(addrlen);
}
}
break;
case SOCKOP_shutdown:
ret = get_errno(shutdown(vptr[0], vptr[1]));
{
int sockfd = tswap32(vptr[0]);
int how = tswap32(vptr[1]);
ret = get_errno(shutdown(sockfd, how));
}
break;
case SOCKOP_sendmsg:
case SOCKOP_recvmsg:
@ -344,11 +595,11 @@ static long do_socketcall(int num, long *vptr)
struct iovec *vec;
struct target_iovec *target_vec;
msgp = (void *)vptr[1];
msgp = (void *)tswap32(vptr[1]);
msg.msg_name = (void *)tswapl(msgp->msg_name);
msg.msg_namelen = tswapl(msgp->msg_namelen);
msg.msg_control = (void *)tswapl(msgp->msg_control);
msg.msg_controllen = tswapl(msgp->msg_controllen);
msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
msg.msg_control = alloca(msg.msg_controllen);
msg.msg_flags = tswap32(msgp->msg_flags);
count = tswapl(msgp->msg_iovlen);
@ -361,17 +612,43 @@ static long do_socketcall(int num, long *vptr)
msg.msg_iovlen = count;
msg.msg_iov = vec;
fd = vptr[0];
flags = vptr[2];
if (num == SOCKOP_sendmsg)
ret = sendmsg(fd, &msg, flags);
else
ret = recvmsg(fd, &msg, flags);
ret = get_errno(ret);
fd = tswap32(vptr[0]);
flags = tswap32(vptr[2]);
if (num == SOCKOP_sendmsg) {
target_to_host_cmsg(&msg, msgp);
ret = get_errno(sendmsg(fd, &msg, flags));
} else {
ret = get_errno(recvmsg(fd, &msg, flags));
if (!is_error(ret))
host_to_target_cmsg(msgp, &msg);
}
}
break;
case SOCKOP_setsockopt:
{
int sockfd = tswap32(vptr[0]);
int level = tswap32(vptr[1]);
int optname = tswap32(vptr[2]);
void *optval = (void *)tswap32(vptr[3]);
socklen_t optlen = tswap32(vptr[4]);
ret = do_setsockopt(sockfd, level, optname, optval, optlen);
}
break;
case SOCKOP_getsockopt:
{
int sockfd = tswap32(vptr[0]);
int level = tswap32(vptr[1]);
int optname = tswap32(vptr[2]);
void *optval = (void *)tswap32(vptr[3]);
uint32_t *target_len = (void *)tswap32(vptr[4]);
socklen_t optlen = tswap32(*target_len);
ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
if (!is_error(ret))
*target_len = tswap32(optlen);
}
break;
default:
gemu_log("Unsupported socketcall: %d\n", num);
ret = -ENOSYS;
@ -960,7 +1237,27 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = get_errno(unlink((const char *)arg1));
break;
case TARGET_NR_execve:
ret = get_errno(execve((const char *)arg1, (void *)arg2, (void *)arg3));
{
char **argp, **envp;
int argc = 0, envc = 0;
uint32_t *p;
char **q;
for (p = (void *)arg2; *p; p++)
argc++;
for (p = (void *)arg3; *p; p++)
envc++;
argp = alloca(argc * sizeof(void *));
envp = alloca(envc * sizeof(void *));
for (p = (void *)arg2, q = argp; *p; p++, q++)
*q = (void *)tswap32(*p);
for (p = (void *)arg3, q = envp; *p; p++, q++)
*q = (void *)tswap32(*p);
ret = get_errno(execve((const char *)arg1, argp, envp));
}
break;
case TARGET_NR_chdir:
ret = get_errno(chdir((const char *)arg1));
@ -1484,7 +1781,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
case TARGET_NR_ioperm:
goto unimplemented;
case TARGET_NR_socketcall:
ret = do_socketcall(arg1, (long *)arg2);
ret = do_socketcall(arg1, (int32_t *)arg2);
break;
case TARGET_NR_syslog:
goto unimplemented;
@ -1548,9 +1845,9 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
target_st->st_size = tswapl(st.st_size);
target_st->st_blksize = tswapl(st.st_blksize);
target_st->st_blocks = tswapl(st.st_blocks);
target_st->st_atime = tswapl(st.st_atime);
target_st->st_mtime = tswapl(st.st_mtime);
target_st->st_ctime = tswapl(st.st_ctime);
target_st->target_st_atime = tswapl(st.st_atime);
target_st->target_st_mtime = tswapl(st.st_mtime);
target_st->target_st_ctime = tswapl(st.st_ctime);
}
}
break;
@ -1727,7 +2024,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
unsigned int nfds = arg2;
int timeout = arg3;
struct pollfd *pfd;
int i;
unsigned int i;
pfd = alloca(sizeof(struct pollfd) * nfds);
for(i = 0; i < nfds; i++) {
@ -1940,9 +2237,9 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
target_st->st_size = tswapl(st.st_size);
target_st->st_blksize = tswapl(st.st_blksize);
target_st->st_blocks = tswapl(st.st_blocks);
target_st->st_atime = tswapl(st.st_atime);
target_st->st_mtime = tswapl(st.st_mtime);
target_st->st_ctime = tswapl(st.st_ctime);
target_st->target_st_atime = tswapl(st.st_atime);
target_st->target_st_mtime = tswapl(st.st_mtime);
target_st->target_st_ctime = tswapl(st.st_ctime);
}
}
break;

42
linux-user/syscall_defs.h
View File

@ -19,6 +19,11 @@
#define SOCKOP_sendmsg 16
#define SOCKOP_recvmsg 17
struct target_sockaddr {
uint16_t sa_family;
uint8_t sa_data[14];
};
struct target_timeval {
target_long tv_sec;
target_long tv_usec;
@ -49,6 +54,43 @@ struct target_msghdr {
unsigned int msg_flags;
};
struct target_cmsghdr {
target_long cmsg_len;
int cmsg_level;
int cmsg_type;
};
#define TARGET_CMSG_DATA(cmsg) ((unsigned char *) ((struct target_cmsghdr *) (cmsg) + 1))
#define TARGET_CMSG_NXTHDR(mhdr, cmsg) __target_cmsg_nxthdr (mhdr, cmsg)
#define TARGET_CMSG_FIRSTHDR(mhdr) \
((size_t) tswapl((mhdr)->msg_controllen) >= sizeof (struct target_cmsghdr) \
? (struct target_cmsghdr *) tswapl((mhdr)->msg_control) : (struct target_cmsghdr *) NULL)
#define TARGET_CMSG_ALIGN(len) (((len) + sizeof (target_long) - 1) \
& (size_t) ~(sizeof (target_long) - 1))
#define TARGET_CMSG_SPACE(len) (TARGET_CMSG_ALIGN (len) \
+ TARGET_CMSG_ALIGN (sizeof (struct target_cmsghdr)))
#define TARGET_CMSG_LEN(len) (TARGET_CMSG_ALIGN (sizeof (struct target_cmsghdr)) + (len))
static __inline__ struct target_cmsghdr *
__target_cmsg_nxthdr (struct target_msghdr *__mhdr, struct target_cmsghdr *__cmsg)
{
if (tswapl(__cmsg->cmsg_len) < sizeof (struct target_cmsghdr))
/* The kernel header does this so there may be a reason. */
return 0;
__cmsg = (struct target_cmsghdr *) ((unsigned char *) __cmsg
+ TARGET_CMSG_ALIGN (tswapl(__cmsg->cmsg_len)));
if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) tswapl(__mhdr->msg_control)
+ tswapl(__mhdr->msg_controllen))
|| ((unsigned char *) __cmsg + TARGET_CMSG_ALIGN (tswapl(__cmsg->cmsg_len))
> ((unsigned char *) tswapl(__mhdr->msg_control)
+ tswapl(__mhdr->msg_controllen))))
/* No more entries. */
return 0;
return __cmsg;
}
struct target_rusage {
struct target_timeval ru_utime; /* user time used */
struct target_timeval ru_stime; /* system time used */

12
syscall-i386.h
View File

@ -285,11 +285,11 @@ struct target_stat {
target_ulong st_size;
target_ulong st_blksize;
target_ulong st_blocks;
target_ulong st_atime;
target_ulong target_st_atime;
target_ulong __unused1;
target_ulong st_mtime;
target_ulong target_st_mtime;
target_ulong __unused2;
target_ulong st_ctime;
target_ulong target_st_ctime;
target_ulong __unused3;
target_ulong __unused4;
target_ulong __unused5;
@ -320,13 +320,13 @@ struct target_stat64 {
target_ulong st_blocks; /* Number 512-byte blocks allocated. */
target_ulong __pad4; /* future possible st_blocks high bits */
target_ulong st_atime;
target_ulong target_st_atime;
target_ulong __pad5;
target_ulong st_mtime;
target_ulong target_st_mtime;
target_ulong __pad6;
target_ulong st_ctime;
target_ulong target_st_ctime;
target_ulong __pad7; /* will be high 32 bits of ctime someday */
unsigned long long st_ino;