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-rw-r--r--src/sim/syscall_emul.hh197
1 files changed, 101 insertions, 96 deletions
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index b21e299e9..f027dbf24 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -27,6 +27,7 @@
*
* Authors: Steve Reinhardt
* Kevin Lim
+ * Korey Sewell
*/
#ifndef __SIM_SYSCALL_EMUL_HH__
@@ -54,7 +55,7 @@
#include "base/misc.hh"
#include "base/trace.hh"
#include "cpu/base.hh"
-#include "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
#include "mem/translating_port.hh"
#include "mem/page_table.hh"
#include "sim/process.hh"
@@ -68,7 +69,7 @@ class SyscallDesc {
/// Typedef for target syscall handler functions.
typedef SyscallReturn (*FuncPtr)(SyscallDesc *, int num,
- Process *, ExecContext *);
+ Process *, ThreadContext *);
const char *name; //!< Syscall name (e.g., "open").
FuncPtr funcPtr; //!< Pointer to emulation function.
@@ -78,7 +79,7 @@ class SyscallDesc {
enum Flags {
/// Don't set return regs according to funcPtr return value.
/// Used for syscalls with non-standard return conventions
- /// that explicitly set the ExecContext regs (e.g.,
+ /// that explicitly set the ThreadContext regs (e.g.,
/// sigreturn).
SuppressReturnValue = 1
};
@@ -90,7 +91,7 @@ class SyscallDesc {
}
/// Emulate the syscall. Public interface for calling through funcPtr.
- void doSyscall(int callnum, Process *proc, ExecContext *xc);
+ void doSyscall(int callnum, Process *proc, ThreadContext *tc);
};
@@ -172,129 +173,133 @@ class TypedBufferArg : public BaseBufferArg
/// Handler for unimplemented syscalls that we haven't thought about.
SyscallReturn unimplementedFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Handler for unimplemented syscalls that we never intend to
/// implement (signal handling, etc.) and should not affect the correct
/// behavior of the program. Print a warning only if the appropriate
/// trace flag is enabled. Return success to the target program.
SyscallReturn ignoreFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target exit() handler: terminate simulation.
SyscallReturn exitFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getpagesize() handler.
SyscallReturn getpagesizeFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target obreak() handler: set brk address.
SyscallReturn obreakFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target close() handler.
SyscallReturn closeFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target read() handler.
SyscallReturn readFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target write() handler.
SyscallReturn writeFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target lseek() handler.
SyscallReturn lseekFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target munmap() handler.
SyscallReturn munmapFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target gethostname() handler.
SyscallReturn gethostnameFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target unlink() handler.
SyscallReturn unlinkFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target rename() handler.
SyscallReturn renameFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target truncate() handler.
SyscallReturn truncateFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target ftruncate() handler.
SyscallReturn ftruncateFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target chown() handler.
SyscallReturn chownFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target fchown() handler.
SyscallReturn fchownFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target fnctl() handler.
SyscallReturn fcntlFunc(SyscallDesc *desc, int num,
- Process *process, ExecContext *xc);
+ Process *process, ThreadContext *tc);
+
+/// Target fcntl64() handler.
+SyscallReturn fcntl64Func(SyscallDesc *desc, int num,
+ Process *process, ThreadContext *tc);
/// Target setuid() handler.
SyscallReturn setuidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getpid() handler.
SyscallReturn getpidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getuid() handler.
SyscallReturn getuidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getgid() handler.
SyscallReturn getgidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getppid() handler.
SyscallReturn getppidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target geteuid() handler.
SyscallReturn geteuidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getegid() handler.
SyscallReturn getegidFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// 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);
+ Process *process, ThreadContext *tc);
/// Target getpidPseudo() handler.
SyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getuidPseudo() handler.
SyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// Target getgidPseudo() handler.
SyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ExecContext *xc);
+ Process *p, ThreadContext *tc);
/// This struct is used to build an target-OS-dependent table that
@@ -338,10 +343,10 @@ getElapsedTime(T1 &sec, T2 &usec)
template <class OS>
SyscallReturn
ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = xc->getSyscallArg(0);
- unsigned req = xc->getSyscallArg(1);
+ int fd = tc->getSyscallArg(0);
+ unsigned req = tc->getSyscallArg(1);
DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req);
@@ -363,7 +368,7 @@ ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
default:
fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...) @ 0x%llx\n",
- fd, req, xc->readPC());
+ fd, req, tc->readPC());
}
}
@@ -371,11 +376,11 @@ ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
openFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
if (path == "/dev/sysdev0") {
@@ -385,8 +390,8 @@ openFunc(SyscallDesc *desc, int callnum, Process *process,
return -ENOENT;
}
- int tgtFlags = xc->getSyscallArg(1);
- int mode = xc->getSyscallArg(2);
+ int tgtFlags = tc->getSyscallArg(1);
+ int mode = tc->getSyscallArg(2);
int hostFlags = 0;
// translate open flags
@@ -418,14 +423,14 @@ openFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
chmodFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
- uint32_t mode = xc->getSyscallArg(1);
+ uint32_t mode = tc->getSyscallArg(1);
mode_t hostMode = 0;
// XXX translate mode flags via OS::something???
@@ -444,15 +449,15 @@ chmodFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
fchmodFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = xc->getSyscallArg(0);
+ int fd = tc->getSyscallArg(0);
if (fd < 0 || process->sim_fd(fd) < 0) {
// doesn't map to any simulator fd: not a valid target fd
return -EBADF;
}
- uint32_t mode = xc->getSyscallArg(1);
+ uint32_t mode = tc->getSyscallArg(1);
mode_t hostMode = 0;
// XXX translate mode flags via OS::someting???
@@ -471,11 +476,11 @@ fchmodFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
statFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
struct stat hostBuf;
@@ -484,7 +489,7 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStatBuf(xc->getMemPort(), xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -494,9 +499,9 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
fstat64Func(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = xc->getSyscallArg(0);
+ int fd = tc->getSyscallArg(0);
if (fd < 0 || process->sim_fd(fd) < 0) {
// doesn't map to any simulator fd: not a valid target fd
return -EBADF;
@@ -513,7 +518,7 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStat64Buf(xc->getMemPort(), fd, xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStat64Buf(tc->getMemPort(), fd, tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -523,11 +528,11 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
lstatFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
struct stat hostBuf;
@@ -536,7 +541,7 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStatBuf(xc->getMemPort(), xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -545,11 +550,11 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
lstat64Func(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
#if BSD_HOST
@@ -563,7 +568,7 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStat64Buf(xc->getMemPort(), -1, xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStat64Buf(tc->getMemPort(), -1, tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -572,9 +577,9 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
fstatFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = process->sim_fd(xc->getSyscallArg(0));
+ int fd = process->sim_fd(tc->getSyscallArg(0));
DPRINTF(SyscallVerbose, "fstat(%d, ...)\n", fd);
@@ -587,7 +592,7 @@ fstatFunc(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStatBuf(xc->getMemPort(), xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -597,11 +602,11 @@ fstatFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
statfsFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
struct statfs hostBuf;
@@ -610,7 +615,7 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStatfsBuf(xc->getMemPort(), xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -620,9 +625,9 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = process->sim_fd(xc->getSyscallArg(0));
+ int fd = process->sim_fd(tc->getSyscallArg(0));
if (fd < 0)
return -EBADF;
@@ -633,7 +638,7 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
if (result < 0)
return -errno;
- OS::copyOutStatfsBuf(xc->getMemPort(), xc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
@@ -643,17 +648,17 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
writevFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int fd = xc->getSyscallArg(0);
+ int fd = tc->getSyscallArg(0);
if (fd < 0 || process->sim_fd(fd) < 0) {
// doesn't map to any simulator fd: not a valid target fd
return -EBADF;
}
- TranslatingPort *p = xc->getMemPort();
- uint64_t tiov_base = xc->getSyscallArg(1);
- size_t count = xc->getSyscallArg(2);
+ TranslatingPort *p = tc->getMemPort();
+ uint64_t tiov_base = tc->getSyscallArg(1);
+ size_t count = tc->getSyscallArg(2);
struct iovec hiov[count];
for (int i = 0; i < count; ++i)
{
@@ -695,14 +700,14 @@ writevFunc(SyscallDesc *desc, int callnum, Process *process,
/// anything else.
template <class OS>
SyscallReturn
-mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+mmapFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
{
- Addr start = xc->getSyscallArg(0);
- uint64_t length = xc->getSyscallArg(1);
- // int prot = xc->getSyscallArg(2);
- int flags = xc->getSyscallArg(3);
- // int fd = p->sim_fd(xc->getSyscallArg(4));
- // int offset = xc->getSyscallArg(5);
+ Addr start = tc->getSyscallArg(0);
+ uint64_t length = tc->getSyscallArg(1);
+ // int prot = tc->getSyscallArg(2);
+ int flags = tc->getSyscallArg(3);
+ // int fd = p->sim_fd(tc->getSyscallArg(4));
+ // int offset = tc->getSyscallArg(5);
if ((start % TheISA::VMPageSize) != 0 ||
(length % TheISA::VMPageSize) != 0) {
@@ -724,7 +729,7 @@ mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
if (!(flags & OS::TGT_MAP_ANONYMOUS)) {
warn("allowing mmap of file @ fd %d. "
- "This will break if not /dev/zero.", xc->getSyscallArg(4));
+ "This will break if not /dev/zero.", tc->getSyscallArg(4));
}
return start;
@@ -734,10 +739,10 @@ mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
template <class OS>
SyscallReturn
getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- unsigned resource = xc->getSyscallArg(0);
- TypedBufferArg<typename OS::rlimit> rlp(xc->getSyscallArg(1));
+ unsigned resource = tc->getSyscallArg(0);
+ TypedBufferArg<typename OS::rlimit> rlp(tc->getSyscallArg(1));
switch (resource) {
case OS::TGT_RLIMIT_STACK:
@@ -754,7 +759,7 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
break;
}
- rlp.copyOut(xc->getMemPort());
+ rlp.copyOut(tc->getMemPort());
return 0;
}
@@ -762,16 +767,16 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- TypedBufferArg<typename OS::timeval> tp(xc->getSyscallArg(0));
+ TypedBufferArg<typename OS::timeval> tp(tc->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->getMemPort());
+ tp.copyOut(tc->getMemPort());
return 0;
}
@@ -781,15 +786,15 @@ gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
utimesFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
std::string path;
- if (!xc->getMemPort()->tryReadString(path, xc->getSyscallArg(0)))
+ if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
- TypedBufferArg<typename OS::timeval [2]> tp(xc->getSyscallArg(1));
- tp.copyIn(xc->getMemPort());
+ TypedBufferArg<typename OS::timeval [2]> tp(tc->getSyscallArg(1));
+ tp.copyIn(tc->getMemPort());
struct timeval hostTimeval[2];
for (int i = 0; i < 2; ++i)
@@ -808,10 +813,10 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
+ ThreadContext *tc)
{
- int who = xc->getSyscallArg(0); // THREAD, SELF, or CHILDREN
- TypedBufferArg<typename OS::rusage> rup(xc->getSyscallArg(1));
+ int who = tc->getSyscallArg(0); // THREAD, SELF, or CHILDREN
+ TypedBufferArg<typename OS::rusage> rup(tc->getSyscallArg(1));
if (who != OS::TGT_RUSAGE_SELF) {
// don't really handle THREAD or CHILDREN, but just warn and
@@ -841,7 +846,7 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
rup->ru_nvcsw = 0;
rup->ru_nivcsw = 0;
- rup.copyOut(xc->getMemPort());
+ rup.copyOut(tc->getMemPort());
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-20 14:56:39 +0000