summaryrefslogtreecommitdiff
path: root/sim/syscall_emul.hh
diff options
context:
space:
mode:
Diffstat (limited to 'sim/syscall_emul.hh')
-rw-r--r--sim/syscall_emul.hh145
1 files changed, 108 insertions, 37 deletions
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
index ed3b0fc8b..25f8c6cb8 100644
--- a/sim/syscall_emul.hh
+++ b/sim/syscall_emul.hh
@@ -29,6 +29,9 @@
#ifndef __SIM_SYSCALL_EMUL_HH__
#define __SIM_SYSCALL_EMUL_HH__
+#define BSD_HOST (defined(__APPLE__) || defined(__OpenBSD__) || \
+ defined(__FreeBSD__))
+
///
/// @file syscall_emul.hh
///
@@ -44,7 +47,7 @@
#include "base/intmath.hh" // for RoundUp
#include "mem/translating_port.hh"
-#include "targetarch/isa_traits.hh" // for Addr
+#include "arch/isa_traits.hh" // for Addr
#include "base/trace.hh"
#include "cpu/exec_context.hh"
@@ -237,6 +240,58 @@ SyscallReturn chownFunc(SyscallDesc *desc, int num,
SyscallReturn fchownFunc(SyscallDesc *desc, int num,
Process *p, ExecContext *xc);
+/// Target fnctl() handler.
+SyscallReturn fcntlFunc(SyscallDesc *desc, int num,
+ Process *process, ExecContext *xc);
+
+/// Target setuid() handler.
+SyscallReturn setuidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getpid() handler.
+SyscallReturn getpidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getuid() handler.
+SyscallReturn getuidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getgid() handler.
+SyscallReturn getgidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getppid() handler.
+SyscallReturn getppidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target geteuid() handler.
+SyscallReturn geteuidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getegid() handler.
+SyscallReturn getegidFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+
+
+/// Pseudo Funcs - These functions use a different return convension,
+/// returning a second value in a register other than the normal return register
+SyscallReturn pipePseudoFunc(SyscallDesc *desc, int num,
+ Process *process, ExecContext *xc);
+
+/// Target getpidPseudo() handler.
+SyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getuidPseudo() handler.
+SyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+/// Target getgidPseudo() handler.
+SyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num,
+ Process *p, ExecContext *xc);
+
+
/// This struct is used to build an target-OS-dependent table that
/// maps the target's open() flags to the host open() flags.
struct OpenFlagTransTable {
@@ -315,7 +370,7 @@ openFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
if (path == "/dev/sysdev0") {
@@ -362,7 +417,7 @@ chmodFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
uint32_t mode = xc->getSyscallArg(1);
@@ -374,7 +429,7 @@ chmodFunc(SyscallDesc *desc, int callnum, Process *process,
// do the chmod
int result = chmod(path.c_str(), hostMode);
if (result < 0)
- return errno;
+ return -errno;
return 0;
}
@@ -401,7 +456,7 @@ fchmodFunc(SyscallDesc *desc, int callnum, Process *process,
// do the fchmod
int result = fchmod(process->sim_fd(fd), hostMode);
if (result < 0)
- return errno;
+ return -errno;
return 0;
}
@@ -415,14 +470,14 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
struct stat hostBuf;
int result = stat(path.c_str(), &hostBuf);
if (result < 0)
- return errno;
+ return -errno;
OS::copyOutStatBuf(xc->port, xc->getSyscallArg(1), &hostBuf);
@@ -442,13 +497,18 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
return -EBADF;
}
- struct stat64 hostBuf;
+#if BSD_HOST
+ struct stat hostBuf;
+ int result = fstat(process->sim_fd(fd), &hostBuf);
+#else
+ struct stat64 hostBuf;
int result = fstat64(process->sim_fd(fd), &hostBuf);
+#endif
if (result < 0)
- return errno;
+ return -errno;
- OS::copyOutStat64Buf(xc->port, xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStat64Buf(xc->port, fd, xc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -462,7 +522,7 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
struct stat hostBuf;
@@ -484,16 +544,21 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
+#if BSD_HOST
+ struct stat hostBuf;
+ int result = lstat(path.c_str(), &hostBuf);
+#else
struct stat64 hostBuf;
int result = lstat64(path.c_str(), &hostBuf);
+#endif
if (result < 0)
return -errno;
- OS::copyOutStat64Buf(xc->port, xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStat64Buf(xc->port, -1, xc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -531,14 +596,14 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
struct statfs hostBuf;
int result = statfs(path.c_str(), &hostBuf);
if (result < 0)
- return errno;
+ return -errno;
OS::copyOutStatfsBuf(xc->port, xc->getSyscallArg(1), &hostBuf);
@@ -561,7 +626,7 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
int result = fstatfs(fd, &hostBuf);
if (result < 0)
- return errno;
+ return -errno;
OS::copyOutStatfsBuf(xc->port, xc->getSyscallArg(1), &hostBuf);
@@ -589,9 +654,9 @@ writevFunc(SyscallDesc *desc, int callnum, Process *process,
typename OS::tgt_iovec tiov;
xc->port->readBlobFunctional(tiov_base + i*sizeof(typename OS::tgt_iovec),(uint8_t*)
&tiov, sizeof(typename OS::tgt_iovec));
- hiov[i].iov_len = tiov.iov_len;
+ hiov[i].iov_len = gtoh(tiov.iov_len);
hiov[i].iov_base = new char [hiov[i].iov_len];
- xc->port->readBlobFunctional(tiov.iov_base,
+ xc->port->readBlobFunctional(gtoh(tiov.iov_base),
(uint8_t *)hiov[i].iov_base, hiov[i].iov_len);
}
@@ -603,7 +668,7 @@ writevFunc(SyscallDesc *desc, int callnum, Process *process,
}
if (result < 0)
- return errno;
+ return -errno;
return 0;
}
@@ -635,7 +700,7 @@ mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
if (start == 0) {
// user didn't give an address... pick one from our "mmap region"
start = p->mmap_end;
- p->mmap_end += roundUp(length, VMPageSize);
+ p->mmap_end += roundUp(length, TheISA::VMPageSize);
if (p->nxm_start != 0) {
//If we have an nxm space, make sure we haven't colided
assert(p->mmap_end < p->nxm_start);
@@ -654,22 +719,24 @@ mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
template <class OS>
SyscallReturn
getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ExecContext *xc)
{
unsigned resource = xc->getSyscallArg(0);
TypedBufferArg<typename OS::rlimit> rlp(xc->getSyscallArg(1));
switch (resource) {
- case OS::RLIMIT_STACK:
- // max stack size in bytes: make up a number (2MB for now)
- rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
- break;
-
- default:
- std::cerr << "getrlimitFunc: unimplemented resource " << resource
- << std::endl;
- abort();
- break;
+ case OS::TGT_RLIMIT_STACK:
+ // max stack size in bytes: make up a number (2MB for now)
+ rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
+ rlp->rlim_cur = htog(rlp->rlim_cur);
+ rlp->rlim_max = htog(rlp->rlim_max);
+ break;
+
+ default:
+ std::cerr << "getrlimitFunc: unimplemented resource " << resource
+ << std::endl;
+ abort();
+ break;
}
rlp.copyOut(xc->port);
@@ -680,12 +747,14 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ExecContext *xc)
{
TypedBufferArg<typename OS::timeval> tp(xc->getSyscallArg(0));
getElapsedTime(tp->tv_sec, tp->tv_usec);
tp->tv_sec += seconds_since_epoch;
+ tp->tv_sec = htog(tp->tv_sec);
+ tp->tv_usec = htog(tp->tv_usec);
tp.copyOut(xc->port);
@@ -701,7 +770,7 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
{
std::string path;
- if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != No_Fault)
+ if (xc->port->readStringFunctional(path, xc->getSyscallArg(0)) != NoFault)
return -EFAULT;
TypedBufferArg<typename OS::timeval [2]> tp(xc->getSyscallArg(1));
@@ -710,8 +779,8 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
struct timeval hostTimeval[2];
for (int i = 0; i < 2; ++i)
{
- hostTimeval[i].tv_sec = (*tp)[i].tv_sec;
- hostTimeval[i].tv_usec = (*tp)[i].tv_usec;
+ hostTimeval[i].tv_sec = gtoh((*tp)[i].tv_sec);
+ hostTimeval[i].tv_usec = gtoh((*tp)[i].tv_usec);
}
int result = utimes(path.c_str(), hostTimeval);
@@ -720,7 +789,6 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
return 0;
}
-
/// Target getrusage() function.
template <class OS>
SyscallReturn
@@ -730,7 +798,7 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
int who = xc->getSyscallArg(0); // THREAD, SELF, or CHILDREN
TypedBufferArg<typename OS::rusage> rup(xc->getSyscallArg(1));
- if (who != OS::RUSAGE_SELF) {
+ if (who != OS::TGT_RUSAGE_SELF) {
// don't really handle THREAD or CHILDREN, but just warn and
// plow ahead
warn("getrusage() only supports RUSAGE_SELF. Parameter %d ignored.",
@@ -738,6 +806,9 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
}
getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec);
+ rup->ru_utime.tv_sec = htog(rup->ru_utime.tv_sec);
+ rup->ru_utime.tv_usec = htog(rup->ru_utime.tv_usec);
+
rup->ru_stime.tv_sec = 0;
rup->ru_stime.tv_usec = 0;
rup->ru_maxrss = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 22:08:52 +0000