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sim-se: change syscall function signature

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The system calls had four parameters. One of the parameters
is ThreadContext and another is Process. The ThreadContext
holds the value of the current process so the Process parameter
is redundant since the system call functions already have
indirect access.

With the old API, it is possible to call into the functions with
the wrong supplied Process which could end up being a confusing
error.

This patch removes the redundancy by forcing access through the
ThreadContext field within each system call.

Change-Id: Ib43d3f65824f6d425260dfd9f67de1892b6e8b7c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/12299
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Brandon Potter
2018-08-28 10:13:04 -04:00
committed by Brandon Potter
parent dd2d44547d
commit dd8a769480
17 changed files with 372 additions and 383 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/arch/alpha/linux/process.cc
View File

@@ -77,10 +77,10 @@ AlphaLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -97,10 +97,10 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
/// borrowed from Tru64, the subcases that get used appear to be
/// different in practice from those used by Tru64 processes.
static SyscallReturn
osf_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
osf_getsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
Addr bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, 2);
@@ -126,10 +126,10 @@ osf_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target osf_setsysinfo() handler.
static SyscallReturn
osf_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
osf_setsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
Addr bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, 2);

8
src/arch/arm/freebsd/process.cc
View File

@@ -85,20 +85,18 @@ ArmFreebsdObjectFileLoader loader;
} // anonymous namespace
static SyscallReturn
issetugidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
issetugidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return 0;
}
static SyscallReturn
sysctlFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
sysctlFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
uint64_t ret;
auto process = tc->getProcessPtr();
Addr namep = process->getSyscallArg(tc, index);
size_t namelen = process->getSyscallArg(tc, index);
Addr oldp = process->getSyscallArg(tc, index);

16
src/arch/arm/linux/process.cc
View File

@@ -105,10 +105,10 @@ ArmLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc32(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc32(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -123,10 +123,10 @@ unameFunc32(SyscallDesc *desc, int callnum, Process *process,
/// Target uname() handler.
static SyscallReturn
unameFunc64(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc64(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -141,10 +141,10 @@ unameFunc64(SyscallDesc *desc, int callnum, Process *process,
/// Target set_tls() handler.
static SyscallReturn
setTLSFunc32(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setTLSFunc32(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
uint32_t tlsPtr = process->getSyscallArg(tc, index);
tc->getMemProxy().writeBlob(ArmLinuxProcess32::commPage + 0x0ff0,
@@ -154,10 +154,10 @@ setTLSFunc32(SyscallDesc *desc, int callnum, Process *process,
}
static SyscallReturn
setTLSFunc64(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setTLSFunc64(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
uint32_t tlsPtr = process->getSyscallArg(tc, index);
tc->setMiscReg(MISCREG_TPIDRRO_EL0, tlsPtr);

16
src/arch/mips/linux/process.cc
View File

@@ -80,10 +80,10 @@ MipsLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -100,10 +100,10 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
/// borrowed from Tru64, the subcases that get used appear to be
/// different in practice from those used by Tru64 processes.
static SyscallReturn
sys_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
sys_getsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
unsigned bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, index);
@@ -129,10 +129,10 @@ sys_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target sys_setsysinfo() handler.
static SyscallReturn
sys_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
sys_setsysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned op = process->getSyscallArg(tc, index);
Addr bufPtr = process->getSyscallArg(tc, index);
// unsigned nbytes = process->getSyscallArg(tc, index);
@@ -159,10 +159,10 @@ sys_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
}
static SyscallReturn
setThreadAreaFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setThreadAreaFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
Addr addr = process->getSyscallArg(tc, index);
tc->setMiscRegNoEffect(MISCREG_TP_VALUE, addr);
return 0;

4
src/arch/power/linux/process.cc
View File

@@ -80,10 +80,10 @@ PowerLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");

8
src/arch/riscv/linux/process.cc
View File

@@ -88,10 +88,10 @@ RiscvLinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc64(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc64(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -106,10 +106,10 @@ unameFunc64(SyscallDesc *desc, int callnum, Process *process,
/// Target uname() handler.
static SyscallReturn
unameFunc32(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc32(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");

7
src/arch/sparc/linux/syscalls.cc
View File

@@ -39,10 +39,10 @@ namespace SparcISA {
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -58,10 +58,11 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
SyscallReturn
getresuidFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getresuidFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
const uint64_t id = htog(100);
int index = 0;
auto p = tc->getProcessPtr();
Addr ruid = p->getSyscallArg(tc, index);
Addr euid = p->getSyscallArg(tc, index);
Addr suid = p->getSyscallArg(tc, index);

4
src/arch/sparc/solaris/process.cc
View File

@@ -72,10 +72,10 @@ SparcSolarisObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Solaris::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "SunOS");

13
src/arch/x86/linux/process.cc
View File

@@ -91,10 +91,10 @@ X86LinuxObjectFileLoader loader;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unameFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(process->getSyscallArg(tc, index));
strcpy(name->sysname, "Linux");
@@ -109,8 +109,7 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
}
static SyscallReturn
archPrctlFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
archPrctlFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
enum ArchPrctlCodes
{
@@ -122,6 +121,7 @@ archPrctlFunc(SyscallDesc *desc, int callnum, Process *process,
// First argument is the code, second is the address
int index = 0;
auto process = tc->getProcessPtr();
int code = process->getSyscallArg(tc, index);
uint64_t addr = process->getSyscallArg(tc, index);
uint64_t fsBase, gsBase;
@@ -175,13 +175,14 @@ struct UserDesc64 {
};
static SyscallReturn
setThreadArea32Func(SyscallDesc *desc, int callnum,
Process *process, ThreadContext *tc)
setThreadArea32Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
const int minTLSEntry = 6;
const int numTLSEntries = 3;
const int maxTLSEntry = minTLSEntry + numTLSEntries - 1;
auto process = tc->getProcessPtr();
X86Process *x86p = dynamic_cast<X86Process *>(process);
assert(x86p);

6
src/gpu-compute/cl_driver.cc
View File

@@ -93,8 +93,9 @@ ClDriver::handshake(GpuDispatcher *_dispatcher)
}
int
ClDriver::open(Process *p, ThreadContext *tc, int mode, int flags)
ClDriver::open(ThreadContext *tc, int mode, int flags)
{
auto p = tc->getProcessPtr();
std::shared_ptr<DeviceFDEntry> fdp;
fdp = std::make_shared<DeviceFDEntry>(this, filename);
int tgt_fd = p->fds->allocFD(fdp);
@@ -102,9 +103,10 @@ ClDriver::open(Process *p, ThreadContext *tc, int mode, int flags)
}
int
ClDriver::ioctl(Process *process, ThreadContext *tc, unsigned req)
ClDriver::ioctl(ThreadContext *tc, unsigned req)
{
int index = 2;
auto process = tc->getProcessPtr();
Addr buf_addr = process->getSyscallArg(tc, index);
switch (req) {

4
src/gpu-compute/cl_driver.hh
View File

@@ -53,8 +53,8 @@ class ClDriver final : public EmulatedDriver
public:
ClDriver(ClDriverParams *p);
void handshake(GpuDispatcher *_dispatcher);
int open(Process *p, ThreadContext *tc, int mode, int flags);
int ioctl(Process *p, ThreadContext *tc, unsigned req);
int open(ThreadContext *tc, int mode, int flags);
int ioctl(ThreadContext *tc, unsigned req);
const char* codeOffToKernelName(uint64_t code_ptr);
private:

11
src/sim/emul_driver.hh
View File

@@ -74,8 +74,7 @@ class EmulatedDriver : public SimObject
* to openFunc() (q.v.).
* @return A newly allocated target fd, or -1 on error.
*/
virtual int open(Process *p, ThreadContext *tc,
int mode, int flags) = 0;
virtual int open(ThreadContext *tc, int mode, int flags) = 0;
/**
* Abstract method, invoked when the user program calls ioctl() on
@@ -84,7 +83,7 @@ class EmulatedDriver : public SimObject
* @return The return code for the ioctl, or the negation of the errno
* (see the SyscallReturn class).
*/
virtual int ioctl(Process *p, ThreadContext *tc, unsigned req) = 0;
virtual int ioctl(ThreadContext *tc, unsigned req) = 0;
/**
* Virtual method, invoked when the user program calls mmap() on
@@ -93,9 +92,9 @@ class EmulatedDriver : public SimObject
* @return The return ptr for the mmap, or the negation of the errno
* (see the SyscallReturn class).
*/
virtual Addr mmap(Process *p, ThreadContext *tc, Addr start,
uint64_t length, int prot, int tgtFlags, int tgtFd,
int offset) { return -EBADF; }
virtual Addr mmap(ThreadContext *tc, Addr start, uint64_t length,
int prot, int tgtFlags, int tgtFd, int offset)
{ return -EBADF; }
};
#endif // __SIM_EMUL_DRIVER_HH

2
src/sim/process.cc
View File

@@ -395,7 +395,7 @@ Process::syscall(int64_t callnum, ThreadContext *tc, Fault *fault)
if (desc == nullptr)
fatal("Syscall %d out of range", callnum);
desc->doSyscall(callnum, this, tc, fault);
desc->doSyscall(callnum, tc, fault);
}
RegVal

6
src/sim/syscall_desc.cc
View File

@@ -46,10 +46,10 @@
#include "sim/syscall_return.hh"
void
SyscallDesc::doSyscall(int callnum, Process *process, ThreadContext *tc,
Fault *fault)
SyscallDesc::doSyscall(int callnum, ThreadContext *tc, Fault *fault)
{
RegVal arg[6] M5_VAR_USED;
auto process = tc->getProcessPtr();
/**
* Step through the first six parameters for the system call and
@@ -69,7 +69,7 @@ SyscallDesc::doSyscall(int callnum, Process *process, ThreadContext *tc,
_name, arg[0], arg[1], arg[2], arg[3], arg[4], arg[5]);
/** Invoke the system call */
SyscallReturn retval = (*executor)(this, callnum, process, tc);
SyscallReturn retval = (*executor)(this, callnum, tc);
/**
* If the system call needs to be restarted, most likely due to

7
src/sim/syscall_desc.hh
View File

@@ -56,7 +56,7 @@ class SyscallReturn;
class ThreadContext;
SyscallReturn unimplementedFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
ThreadContext *tc);
/**
* This class provides the wrapper interface for the system call
@@ -68,7 +68,7 @@ class SyscallDesc {
public:
/** Typedef the function pointer here to clean up code below */
typedef SyscallReturn (*SyscallExecutor)(SyscallDesc*, int num,
Process*, ThreadContext*);
ThreadContext*);
SyscallDesc(const char *name,
SyscallExecutor sys_exec=unimplementedFunc, int flags=0)
@@ -98,8 +98,7 @@ class SyscallDesc {
* @param proc Handle for the owning Process to pass information
* @param tc Handle for owning ThreadContext to pass information
*/
void doSyscall(int callnum, Process *proc, ThreadContext *tc,
Fault *fault);
void doSyscall(int callnum, ThreadContext *tc, Fault *fault);
/**
* Return false if WarnOnce is set and a warning has already been issued.

235
src/sim/syscall_emul.cc
View File

@@ -64,8 +64,7 @@ warnUnsupportedOS(std::string syscall_name)
}
SyscallReturn
unimplementedFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unimplementedFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
fatal("syscall %s (#%d) unimplemented.", desc->name(), callnum);
@@ -74,8 +73,7 @@ unimplementedFunc(SyscallDesc *desc, int callnum, Process *process,
SyscallReturn
ignoreFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
ignoreFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
if (desc->needWarning()) {
warn("ignoring syscall %s(...)%s", desc->name(), desc->warnOnce() ?
@@ -100,10 +98,10 @@ exitFutexWake(ThreadContext *tc, Addr addr, uint64_t tgid)
}
static SyscallReturn
exitImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
bool group)
exitImpl(SyscallDesc *desc, int callnum, ThreadContext *tc, bool group)
{
int index = 0;
auto p = tc->getProcessPtr();
int status = p->getSyscallArg(tc, index);
System *sys = tc->getSystemPtr();
@@ -222,29 +220,30 @@ exitImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
}
SyscallReturn
exitFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
exitFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return exitImpl(desc, callnum, p, tc, false);
return exitImpl(desc, callnum, tc, false);
}
SyscallReturn
exitGroupFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
exitGroupFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return exitImpl(desc, callnum, p, tc, true);
return exitImpl(desc, callnum, tc, true);
}
SyscallReturn
getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getpagesizeFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
return (int)PageBytes;
}
SyscallReturn
brkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
brkFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
// change brk addr to first arg
int index = 0;
auto p = tc->getProcessPtr();
Addr new_brk = p->getSyscallArg(tc, index);
std::shared_ptr<MemState> mem_state = p->memState;
@@ -289,10 +288,10 @@ brkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
setTidAddressFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setTidAddressFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
uint64_t tidPtr = process->getSyscallArg(tc, index);
process->childClearTID = tidPtr;
@@ -300,18 +299,20 @@ setTidAddressFunc(SyscallDesc *desc, int callnum, Process *process,
}
SyscallReturn
closeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
closeFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
return p->fds->closeFDEntry(tgt_fd);
}
SyscallReturn
lseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
lseekFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
uint64_t offs = p->getSyscallArg(tc, index);
int whence = p->getSyscallArg(tc, index);
@@ -328,9 +329,10 @@ lseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
SyscallReturn
_llseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
_llseekFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
uint64_t offset_high = p->getSyscallArg(tc, index);
uint32_t offset_low = p->getSyscallArg(tc, index);
@@ -358,7 +360,7 @@ _llseekFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
SyscallReturn
munmapFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
munmapFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
// With mmap more fully implemented, it might be worthwhile to bite
// the bullet and implement munmap. Should allow us to reuse simulated
@@ -370,9 +372,10 @@ munmapFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
const char *hostname = "m5.eecs.umich.edu";
SyscallReturn
gethostnameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
gethostnameFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
Addr buf_ptr = p->getSyscallArg(tc, index);
int name_len = p->getSyscallArg(tc, index);
BufferArg name(buf_ptr, name_len);
@@ -385,10 +388,11 @@ gethostnameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
getcwdFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getcwdFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int result = 0;
int index = 0;
auto p = tc->getProcessPtr();
Addr buf_ptr = p->getSyscallArg(tc, index);
unsigned long size = p->getSyscallArg(tc, index);
BufferArg buf(buf_ptr, size);
@@ -416,17 +420,16 @@ getcwdFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
readlinkFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
readlinkFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return readlinkFunc(desc, callnum, process, tc, 0);
return readlinkFunc(desc, callnum, tc, 0);
}
SyscallReturn
readlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
int index)
readlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc, int index)
{
string path;
auto p = tc->getProcessPtr();
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
return -EFAULT;
@@ -483,16 +486,16 @@ readlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
}
SyscallReturn
unlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
unlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
return unlinkHelper(desc, num, p, tc, 0);
return unlinkHelper(desc, num, tc, 0);
}
SyscallReturn
unlinkHelper(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
int index)
unlinkHelper(SyscallDesc *desc, int num, ThreadContext *tc, int index)
{
string path;
auto p = tc->getProcessPtr();
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
return -EFAULT;
@@ -504,10 +507,11 @@ unlinkHelper(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
}
SyscallReturn
linkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
linkFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
string path;
string new_path;
auto p = tc->getProcessPtr();
int index = 0;
auto &virt_mem = tc->getMemProxy();
@@ -524,10 +528,11 @@ linkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
symlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
symlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
string path;
string new_path;
auto p = tc->getProcessPtr();
int index = 0;
auto &virt_mem = tc->getMemProxy();
@@ -544,8 +549,9 @@ symlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
mkdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
mkdirFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
auto p = tc->getProcessPtr();
int index = 0;
std::string path;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -559,9 +565,10 @@ mkdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
renameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
renameFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
string old_name;
auto p = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(old_name, p->getSyscallArg(tc, index)))
@@ -581,9 +588,10 @@ renameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
truncateFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
truncateFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
string path;
auto p = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -599,9 +607,10 @@ truncateFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
ftruncateFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
ftruncateFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
off_t length = p->getSyscallArg(tc, index);
@@ -615,10 +624,10 @@ ftruncateFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
truncate64Func(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc)
truncate64Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
string path;
if (!tc->getMemProxy().tryReadString(path, process->getSyscallArg(tc, index)))
@@ -638,9 +647,10 @@ truncate64Func(SyscallDesc *desc, int num,
}
SyscallReturn
ftruncate64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
ftruncate64Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int64_t length = p->getSyscallArg(tc, index, 64);
@@ -658,7 +668,7 @@ ftruncate64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
umaskFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
umaskFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
// Letting the simulated program change the simulator's umask seems like
// a bad idea. Compromise by just returning the current umask but not
@@ -669,9 +679,10 @@ umaskFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
}
SyscallReturn
chownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
chownFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
string path;
auto p = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -691,9 +702,10 @@ chownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
fchownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
fchownFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
auto ffdp = std::dynamic_pointer_cast<FileFDEntry>((*p->fds)[tgt_fd]);
@@ -718,9 +730,10 @@ fchownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
* for the fd entries that we maintain for checkpoint restoration.
*/
SyscallReturn
dupFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
dupFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
auto old_hbfdp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[tgt_fd]);
@@ -739,10 +752,10 @@ dupFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
dup2Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
dup2Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int old_tgt_fd = p->getSyscallArg(tc, index);
auto old_hbp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[old_tgt_fd]);
if (!old_hbp)
@@ -770,10 +783,11 @@ dup2Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
fcntlFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
fcntlFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int arg;
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int cmd = p->getSyscallArg(tc, index);
@@ -814,9 +828,10 @@ fcntlFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
fcntl64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
fcntl64Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
auto hbfdp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[tgt_fd]);
@@ -845,10 +860,10 @@ fcntl64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
pipeImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
bool pseudoPipe)
pipeImpl(SyscallDesc *desc, int callnum, ThreadContext *tc, bool pseudoPipe)
{
int sim_fds[2], tgt_fds[2];
auto p = tc->getProcessPtr();
int pipe_retval = pipe(sim_fds);
if (pipe_retval == -1)
@@ -893,23 +908,22 @@ pipeImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
}
SyscallReturn
pipePseudoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
pipePseudoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return pipeImpl(desc, callnum, process, tc, true);
return pipeImpl(desc, callnum, tc, true);
}
SyscallReturn
pipeFunc(SyscallDesc *desc, int callnum, Process *process, ThreadContext *tc)
pipeFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return pipeImpl(desc, callnum, process, tc, false);
return pipeImpl(desc, callnum, tc, false);
}
SyscallReturn
setpgidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setpgidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int pid = process->getSyscallArg(tc, index);
int pgid = process->getSyscallArg(tc, index);
@@ -942,105 +956,106 @@ setpgidFunc(SyscallDesc *desc, int callnum, Process *process,
}
SyscallReturn
getpidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getpidPseudoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
// Make up a PID. There's no interprocess communication in
// fake_syscall mode, so there's no way for a process to know it's
// not getting a unique value.
auto process = tc->getProcessPtr();
tc->setIntReg(SyscallPseudoReturnReg, process->ppid());
return process->pid();
}
SyscallReturn
getuidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getuidPseudoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
// Make up a UID and EUID... it shouldn't matter, and we want the
// simulation to be deterministic.
// EUID goes in r20.
auto process = tc->getProcessPtr();
tc->setIntReg(SyscallPseudoReturnReg, process->euid()); // EUID
return process->uid(); // UID
}
SyscallReturn
getgidPseudoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getgidPseudoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
// Get current group ID. EGID goes in r20.
auto process = tc->getProcessPtr();
tc->setIntReg(SyscallPseudoReturnReg, process->egid()); // EGID
return process->gid();
}
SyscallReturn
setuidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
setuidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
// can't fathom why a benchmark would call this.
int index = 0;
auto process = tc->getProcessPtr();
warn("Ignoring call to setuid(%d)\n", process->getSyscallArg(tc, index));
return 0;
}
SyscallReturn
getpidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getpidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->tgid();
}
SyscallReturn
gettidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
gettidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->pid();
}
SyscallReturn
getppidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getppidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->ppid();
}
SyscallReturn
getuidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getuidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->uid(); // UID
}
SyscallReturn
geteuidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
geteuidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->euid(); // UID
}
SyscallReturn
getgidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getgidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->gid();
}
SyscallReturn
getegidFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getegidFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
auto process = tc->getProcessPtr();
return process->egid();
}
SyscallReturn
fallocateFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
fallocateFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
#if defined(__linux__)
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int mode = p->getSyscallArg(tc, index);
off_t offset = p->getSyscallArg(tc, index);
@@ -1062,10 +1077,10 @@ fallocateFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
}
SyscallReturn
accessFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
int index)
accessFunc(SyscallDesc *desc, int callnum, ThreadContext *tc, int index)
{
string path;
auto p = tc->getProcessPtr();
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
return -EFAULT;
@@ -1079,14 +1094,15 @@ accessFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
}
SyscallReturn
accessFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
accessFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return accessFunc(desc, callnum, p, tc, 0);
return accessFunc(desc, callnum, tc, 0);
}
SyscallReturn
mknodFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
mknodFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
auto p = tc->getProcessPtr();
int index = 0;
std::string path;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -1101,8 +1117,9 @@ mknodFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
chdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
chdirFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
auto p = tc->getProcessPtr();
int index = 0;
std::string path;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -1128,8 +1145,9 @@ chdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
rmdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
rmdirFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
auto p = tc->getProcessPtr();
int index = 0;
std::string path;
if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
@@ -1144,9 +1162,10 @@ rmdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
#if defined(SYS_getdents) || defined(SYS_getdents64)
template<typename DE, int SYS_NUM>
static SyscallReturn
getdentsImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
getdentsImpl(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr buf_ptr = p->getSyscallArg(tc, index);
unsigned count = p->getSyscallArg(tc, index);
@@ -1187,7 +1206,7 @@ getdentsImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
#if defined(SYS_getdents)
SyscallReturn
getdentsFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
getdentsFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
typedef struct linux_dirent {
unsigned long d_ino;
@@ -1196,13 +1215,13 @@ getdentsFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
char dname[];
} LinDent;
return getdentsImpl<LinDent, SYS_getdents>(desc, callnum, p, tc);
return getdentsImpl<LinDent, SYS_getdents>(desc, callnum, tc);
}
#endif
#if defined(SYS_getdents64)
SyscallReturn
getdents64Func(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
getdents64Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
typedef struct linux_dirent64 {
ino64_t d_ino;
@@ -1211,14 +1230,15 @@ getdents64Func(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
char dname[];
} LinDent64;
return getdentsImpl<LinDent64, SYS_getdents64>(desc, callnum, p, tc);
return getdentsImpl<LinDent64, SYS_getdents64>(desc, callnum, tc);
}
#endif
SyscallReturn
shutdownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
shutdownFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int how = p->getSyscallArg(tc, index);
@@ -1233,9 +1253,10 @@ shutdownFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
bindFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
bindFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr buf_ptr = p->getSyscallArg(tc, index);
int addrlen = p->getSyscallArg(tc, index);
@@ -1256,9 +1277,10 @@ bindFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
listenFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
listenFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int backlog = p->getSyscallArg(tc, index);
@@ -1273,9 +1295,10 @@ listenFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
connectFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
connectFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr buf_ptr = p->getSyscallArg(tc, index);
int addrlen = p->getSyscallArg(tc, index);
@@ -1296,9 +1319,10 @@ connectFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
recvfromFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
recvfromFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufrPtr = p->getSyscallArg(tc, index);
size_t bufrLen = p->getSyscallArg(tc, index);
@@ -1360,9 +1384,10 @@ recvfromFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
sendtoFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
sendtoFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufrPtr = p->getSyscallArg(tc, index);
size_t bufrLen = p->getSyscallArg(tc, index);
@@ -1396,9 +1421,10 @@ sendtoFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
recvmsgFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
recvmsgFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr msgPtr = p->getSyscallArg(tc, index);
int flags = p->getSyscallArg(tc, index);
@@ -1536,9 +1562,10 @@ recvmsgFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
sendmsgFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
sendmsgFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr msgPtr = p->getSyscallArg(tc, index);
int flags = p->getSyscallArg(tc, index);
@@ -1605,7 +1632,7 @@ sendmsgFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
getsockoptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getsockoptFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
// union of all possible return value types from getsockopt
union val {
@@ -1616,6 +1643,7 @@ getsockoptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
} val;
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int level = p->getSyscallArg(tc, index);
int optname = p->getSyscallArg(tc, index);
@@ -1647,9 +1675,10 @@ getsockoptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
getsocknameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getsocknameFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr addrPtr = p->getSyscallArg(tc, index);
Addr lenPtr = p->getSyscallArg(tc, index);
@@ -1686,9 +1715,10 @@ getsocknameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
getpeernameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
getpeernameFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr sockAddrPtr = p->getSyscallArg(tc, index);
Addr addrlenPtr = p->getSyscallArg(tc, index);
@@ -1715,9 +1745,10 @@ getpeernameFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
}
SyscallReturn
setsockoptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
setsockoptFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
int level = p->getSyscallArg(tc, index);
int optname = p->getSyscallArg(tc, index);

396
src/sim/syscall_emul.hh
View File

@@ -123,276 +123,215 @@
void warnUnsupportedOS(std::string syscall_name);
/// Handler for unimplemented syscalls that we haven't thought about.
SyscallReturn unimplementedFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn unimplementedFunc(SyscallDesc *desc, int num, 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, ThreadContext *tc);
SyscallReturn ignoreFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target fallocateFunc() handler.
SyscallReturn fallocateFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn fallocateFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target exit() handler: terminate current context.
SyscallReturn exitFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn exitFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target exit_group() handler: terminate simulation. (exit all threads)
SyscallReturn exitGroupFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn exitGroupFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target set_tid_address() handler.
SyscallReturn setTidAddressFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn setTidAddressFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getpagesize() handler.
SyscallReturn getpagesizeFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getpagesizeFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target brk() handler: set brk address.
SyscallReturn brkFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn brkFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target close() handler.
SyscallReturn closeFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn closeFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target lseek() handler.
SyscallReturn lseekFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn lseekFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target _llseek() handler.
SyscallReturn _llseekFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn _llseekFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target munmap() handler.
SyscallReturn munmapFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn munmapFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target shutdown() handler.
SyscallReturn shutdownFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn shutdownFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target gethostname() handler.
SyscallReturn gethostnameFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn gethostnameFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getcwd() handler.
SyscallReturn getcwdFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getcwdFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target readlink() handler.
SyscallReturn readlinkFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc,
SyscallReturn readlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc,
int index = 0);
SyscallReturn readlinkFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn readlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target unlink() handler.
SyscallReturn unlinkHelper(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc,
SyscallReturn unlinkHelper(SyscallDesc *desc, int num, ThreadContext *tc,
int index);
SyscallReturn unlinkFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn unlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target link() handler
SyscallReturn linkFunc(SyscallDesc *desc, int num, Process *p,
ThreadContext *tc);
SyscallReturn linkFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target symlink() handler.
SyscallReturn symlinkFunc(SyscallDesc *desc, int num, Process *p,
ThreadContext *tc);
SyscallReturn symlinkFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target mkdir() handler.
SyscallReturn mkdirFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn mkdirFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target mknod() handler.
SyscallReturn mknodFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn mknodFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target chdir() handler.
SyscallReturn chdirFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn chdirFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target rmdir() handler.
SyscallReturn rmdirFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn rmdirFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target rename() handler.
SyscallReturn renameFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn renameFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target truncate() handler.
SyscallReturn truncateFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn truncateFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target ftruncate() handler.
SyscallReturn ftruncateFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn ftruncateFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target truncate64() handler.
SyscallReturn truncate64Func(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn truncate64Func(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target ftruncate64() handler.
SyscallReturn ftruncate64Func(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn ftruncate64Func(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target umask() handler.
SyscallReturn umaskFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn umaskFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target gettid() handler.
SyscallReturn gettidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn gettidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target chown() handler.
SyscallReturn chownFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn chownFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target setpgid() handler.
SyscallReturn setpgidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn setpgidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target fchown() handler.
SyscallReturn fchownFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn fchownFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target dup() handler.
SyscallReturn dupFunc(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc);
SyscallReturn dupFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target dup2() handler.
SyscallReturn dup2Func(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc);
SyscallReturn dup2Func(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target fcntl() handler.
SyscallReturn fcntlFunc(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc);
SyscallReturn fcntlFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target fcntl64() handler.
SyscallReturn fcntl64Func(SyscallDesc *desc, int num,
Process *process, ThreadContext *tc);
SyscallReturn fcntl64Func(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target setuid() handler.
SyscallReturn setuidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn setuidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target pipe() handler.
SyscallReturn pipeFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn pipeFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Internal pipe() handler.
SyscallReturn pipeImpl(SyscallDesc *desc, int num, Process *p,
ThreadContext *tc, bool pseudoPipe);
SyscallReturn pipeImpl(SyscallDesc *desc, int num, ThreadContext *tc,
bool pseudoPipe);
/// Target getpid() handler.
SyscallReturn getpidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getpidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target getpeername() handler.
SyscallReturn getpeernameFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getpeernameFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target bind() handler.
SyscallReturn bindFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn bindFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target listen() handler.
SyscallReturn listenFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn listenFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target connect() handler.
SyscallReturn connectFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn connectFunc(SyscallDesc *desc, int num, ThreadContext *tc);
#if defined(SYS_getdents)
// Target getdents() handler.
SyscallReturn getdentsFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getdentsFunc(SyscallDesc *desc, int num, ThreadContext *tc);
#endif
#if defined(SYS_getdents64)
// Target getdents() handler.
SyscallReturn getdents64Func(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getdents64Func(SyscallDesc *desc, int num, ThreadContext *tc);
#endif
// Target sendto() handler.
SyscallReturn sendtoFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn sendtoFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target recvfrom() handler.
SyscallReturn recvfromFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn recvfromFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target recvmsg() handler.
SyscallReturn recvmsgFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn recvmsgFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target sendmsg() handler.
SyscallReturn sendmsgFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn sendmsgFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target getuid() handler.
SyscallReturn getuidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getuidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getgid() handler.
SyscallReturn getgidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getgidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getppid() handler.
SyscallReturn getppidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getppidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target geteuid() handler.
SyscallReturn geteuidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn geteuidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getegid() handler.
SyscallReturn getegidFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getegidFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target access() handler
SyscallReturn accessFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn accessFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc,
SyscallReturn accessFunc(SyscallDesc *desc, int num, ThreadContext *tc);
SyscallReturn accessFunc(SyscallDesc *desc, int num, ThreadContext *tc,
int index);
// Target getsockopt() handler.
SyscallReturn getsockoptFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getsockoptFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target setsockopt() handler.
SyscallReturn setsockoptFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn setsockoptFunc(SyscallDesc *desc, int num, ThreadContext *tc);
// Target getsockname() handler.
SyscallReturn getsocknameFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getsocknameFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Futex system call
/// Implemented by Daniel Sanchez
/// Used by printf's in multi-threaded apps
template <class OS>
SyscallReturn
futexFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
futexFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
using namespace std;
int index = 0;
auto process = tc->getProcessPtr();
Addr uaddr = process->getSyscallArg(tc, index);
int op = process->getSyscallArg(tc, index);
int val = process->getSyscallArg(tc, index);
@@ -527,20 +466,16 @@ futexFunc(SyscallDesc *desc, int callnum, Process *process,
/// 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, ThreadContext *tc);
SyscallReturn pipePseudoFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getpidPseudo() handler.
SyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getuidPseudo() handler.
SyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// Target getgidPseudo() handler.
SyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num,
Process *p, ThreadContext *tc);
SyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num, ThreadContext *tc);
/// A readable name for 1,000,000, for converting microseconds to seconds.
@@ -736,9 +671,11 @@ copyOutStatfsBuf(SETranslatingPortProxy &mem, Addr addr,
/// not TTYs to provide repeatable results.
template <class OS>
SyscallReturn
ioctlFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
ioctlFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
unsigned req = p->getSyscallArg(tc, index);
@@ -751,7 +688,7 @@ ioctlFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
if (dfdp) {
EmulatedDriver *emul_driver = dfdp->getDriver();
if (emul_driver)
return emul_driver->ioctl(p, tc, req);
return emul_driver->ioctl(tc, req);
}
auto sfdp = std::dynamic_pointer_cast<SocketFDEntry>((*p->fds)[tgt_fd]);
@@ -813,10 +750,10 @@ ioctlFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
openImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
bool isopenat)
openImpl(SyscallDesc *desc, int callnum, ThreadContext *tc, bool isopenat)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_dirfd = -1;
/**
@@ -899,7 +836,7 @@ openImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
DPRINTF_SYSCALL(Verbose, "open%s: passing call to "
"driver open with path[%s]\n",
isopenat ? "at" : "", abs_path.c_str());
return drv->open(p, tc, mode, host_flags);
return drv->open(tc, mode, host_flags);
}
/**
* Fall through here for pass through to host devices, such
@@ -972,68 +909,66 @@ openImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
/// Target open() handler.
template <class OS>
SyscallReturn
openFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
openFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return openImpl<OS>(desc, callnum, process, tc, false);
return openImpl<OS>(desc, callnum, tc, false);
}
/// Target openat() handler.
template <class OS>
SyscallReturn
openatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
openatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
return openImpl<OS>(desc, callnum, process, tc, true);
return openImpl<OS>(desc, callnum, tc, true);
}
/// Target unlinkat() handler.
template <class OS>
SyscallReturn
unlinkatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
unlinkatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int dirfd = process->getSyscallArg(tc, index);
if (dirfd != OS::TGT_AT_FDCWD)
warn("unlinkat: first argument not AT_FDCWD; unlikely to work");
return unlinkHelper(desc, callnum, process, tc, 1);
return unlinkHelper(desc, callnum, tc, 1);
}
/// Target facessat() handler
template <class OS>
SyscallReturn
faccessatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
faccessatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int dirfd = process->getSyscallArg(tc, index);
if (dirfd != OS::TGT_AT_FDCWD)
warn("faccessat: first argument not AT_FDCWD; unlikely to work");
return accessFunc(desc, callnum, process, tc, 1);
return accessFunc(desc, callnum, tc, 1);
}
/// Target readlinkat() handler
template <class OS>
SyscallReturn
readlinkatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
readlinkatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int dirfd = process->getSyscallArg(tc, index);
if (dirfd != OS::TGT_AT_FDCWD)
warn("openat: first argument not AT_FDCWD; unlikely to work");
return readlinkFunc(desc, callnum, process, tc, 1);
return readlinkFunc(desc, callnum, tc, 1);
}
/// Target renameat() handler.
template <class OS>
SyscallReturn
renameatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
renameatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int olddirfd = process->getSyscallArg(tc, index);
if (olddirfd != OS::TGT_AT_FDCWD)
@@ -1066,11 +1001,11 @@ renameatFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target sysinfo() handler.
template <class OS>
SyscallReturn
sysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
sysinfoFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<typename OS::tgt_sysinfo>
sysinfo(process->getSyscallArg(tc, index));
@@ -1086,10 +1021,10 @@ sysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target chmod() handler.
template <class OS>
SyscallReturn
chmodFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
chmodFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1116,9 +1051,10 @@ chmodFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
pollFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
pollFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
Addr fdsPtr = p->getSyscallArg(tc, index);
int nfds = p->getSyscallArg(tc, index);
int tmout = p->getSyscallArg(tc, index);
@@ -1192,9 +1128,10 @@ pollFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
/// Target fchmod() handler.
template <class OS>
SyscallReturn
fchmodFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
fchmodFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
uint32_t mode = p->getSyscallArg(tc, index);
@@ -1213,9 +1150,10 @@ fchmodFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target mremap() handler.
template <class OS>
SyscallReturn
mremapFunc(SyscallDesc *desc, int callnum, Process *process, ThreadContext *tc)
mremapFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
Addr start = process->getSyscallArg(tc, index);
uint64_t old_length = process->getSyscallArg(tc, index);
uint64_t new_length = process->getSyscallArg(tc, index);
@@ -1292,10 +1230,10 @@ mremapFunc(SyscallDesc *desc, int callnum, Process *process, ThreadContext *tc)
/// Target stat() handler.
template <class OS>
SyscallReturn
statFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
statFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1322,10 +1260,10 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target stat64() handler.
template <class OS>
SyscallReturn
stat64Func(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
stat64Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1356,10 +1294,10 @@ stat64Func(SyscallDesc *desc, int callnum, Process *process,
/// Target fstatat64() handler.
template <class OS>
SyscallReturn
fstatat64Func(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
fstatat64Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int dirfd = process->getSyscallArg(tc, index);
if (dirfd != OS::TGT_AT_FDCWD)
warn("fstatat64: first argument not AT_FDCWD; unlikely to work");
@@ -1393,9 +1331,10 @@ fstatat64Func(SyscallDesc *desc, int callnum, Process *process,
/// Target fstat64() handler.
template <class OS>
SyscallReturn
fstat64Func(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
fstat64Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufPtr = p->getSyscallArg(tc, index);
@@ -1424,10 +1363,10 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target lstat() handler.
template <class OS>
SyscallReturn
lstatFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
lstatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1453,10 +1392,10 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target lstat64() handler.
template <class OS>
SyscallReturn
lstat64Func(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
lstat64Func(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1487,9 +1426,10 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
/// Target fstat() handler.
template <class OS>
SyscallReturn
fstatFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
fstatFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufPtr = p->getSyscallArg(tc, index);
@@ -1514,11 +1454,11 @@ fstatFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target statfs() handler.
template <class OS>
SyscallReturn
statfsFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
statfsFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
#if defined(__linux__)
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -1546,10 +1486,11 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
cloneFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
cloneFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
RegVal flags = p->getSyscallArg(tc, index);
RegVal newStack = p->getSyscallArg(tc, index);
Addr ptidPtr = p->getSyscallArg(tc, index);
@@ -1685,9 +1626,10 @@ cloneFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target fstatfs() handler.
template <class OS>
SyscallReturn
fstatfsFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
fstatfsFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufPtr = p->getSyscallArg(tc, index);
@@ -1710,9 +1652,10 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target readv() handler.
template <class OS>
SyscallReturn
readvFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
readvFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
auto ffdp = std::dynamic_pointer_cast<FileFDEntry>((*p->fds)[tgt_fd]);
@@ -1749,9 +1692,10 @@ readvFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target writev() handler.
template <class OS>
SyscallReturn
writevFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
writevFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
auto hbfdp = std::dynamic_pointer_cast<HBFDEntry>((*p->fds)[tgt_fd]);
@@ -1785,10 +1729,10 @@ writevFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Real mmap handler.
template <class OS>
SyscallReturn
mmapImpl(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
bool is_mmap2)
mmapImpl(SyscallDesc *desc, int num, ThreadContext *tc, bool is_mmap2)
{
int index = 0;
auto p = tc->getProcessPtr();
Addr start = p->getSyscallArg(tc, index);
uint64_t length = p->getSyscallArg(tc, index);
int prot = p->getSyscallArg(tc, index);
@@ -1845,8 +1789,8 @@ mmapImpl(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
auto dfdp = std::dynamic_pointer_cast<DeviceFDEntry>(fdep);
if (dfdp) {
EmulatedDriver *emul_driver = dfdp->getDriver();
return emul_driver->mmap(p, tc, start, length, prot,
tgt_flags, tgt_fd, offset);
return emul_driver->mmap(tc, start, length, prot, tgt_flags,
tgt_fd, offset);
}
auto ffdp = std::dynamic_pointer_cast<FileFDEntry>(fdep);
@@ -1963,9 +1907,10 @@ mmapImpl(SyscallDesc *desc, int num, Process *p, ThreadContext *tc,
template <class OS>
SyscallReturn
pwrite64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
pwrite64Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr bufPtr = p->getSyscallArg(tc, index);
int nbytes = p->getSyscallArg(tc, index);
@@ -1987,26 +1932,26 @@ pwrite64Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
/// Target mmap() handler.
template <class OS>
SyscallReturn
mmapFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
mmapFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
return mmapImpl<OS>(desc, num, p, tc, false);
return mmapImpl<OS>(desc, num, tc, false);
}
/// Target mmap2() handler.
template <class OS>
SyscallReturn
mmap2Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
mmap2Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
return mmapImpl<OS>(desc, num, p, tc, true);
return mmapImpl<OS>(desc, num, tc, true);
}
/// Target getrlimit() handler.
template <class OS>
SyscallReturn
getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getrlimitFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
unsigned resource = process->getSyscallArg(tc, index);
TypedBufferArg<typename OS::rlimit> rlp(process->getSyscallArg(tc, index));
@@ -2037,10 +1982,10 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
prlimitFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
prlimitFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
if (process->getSyscallArg(tc, index) != 0)
{
warn("prlimit: ignoring rlimits for nonzero pid");
@@ -2080,9 +2025,10 @@ prlimitFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target clock_gettime() function.
template <class OS>
SyscallReturn
clock_gettimeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
clock_gettimeFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 1;
auto p = tc->getProcessPtr();
//int clk_id = p->getSyscallArg(tc, index);
TypedBufferArg<typename OS::timespec> tp(p->getSyscallArg(tc, index));
@@ -2099,9 +2045,10 @@ clock_gettimeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
/// Target clock_getres() function.
template <class OS>
SyscallReturn
clock_getresFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
clock_getresFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 1;
auto p = tc->getProcessPtr();
TypedBufferArg<typename OS::timespec> tp(p->getSyscallArg(tc, index));
// Set resolution at ns, which is what clock_gettime() returns
@@ -2116,10 +2063,10 @@ clock_getresFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
/// Target gettimeofday() handler.
template <class OS>
SyscallReturn
gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
gettimeofdayFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<typename OS::timeval> tp(process->getSyscallArg(tc, index));
getElapsedTimeMicro(tp->tv_sec, tp->tv_usec);
@@ -2136,10 +2083,10 @@ gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target utimes() handler.
template <class OS>
SyscallReturn
utimesFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
utimesFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
std::string path;
auto process = tc->getProcessPtr();
int index = 0;
if (!tc->getMemProxy().tryReadString(path,
@@ -2170,9 +2117,10 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
template <class OS>
SyscallReturn
execveFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
execveFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
desc->setFlags(0);
auto p = tc->getProcessPtr();
int index = 0;
std::string path;
@@ -2263,10 +2211,10 @@ execveFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
/// Target getrusage() function.
template <class OS>
SyscallReturn
getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
getrusageFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int who = process->getSyscallArg(tc, index); // THREAD, SELF, or CHILDREN
TypedBufferArg<typename OS::rusage> rup(process->getSyscallArg(tc, index));
@@ -2315,10 +2263,10 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target times() function.
template <class OS>
SyscallReturn
timesFunc(SyscallDesc *desc, int callnum, Process *process,
ThreadContext *tc)
timesFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
TypedBufferArg<typename OS::tms> bufp(process->getSyscallArg(tc, index));
// Fill in the time structure (in clocks)
@@ -2341,13 +2289,14 @@ timesFunc(SyscallDesc *desc, int callnum, Process *process,
/// Target time() function.
template <class OS>
SyscallReturn
timeFunc(SyscallDesc *desc, int callnum, Process *process, ThreadContext *tc)
timeFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
typename OS::time_t sec, usec;
getElapsedTimeMicro(sec, usec);
sec += seconds_since_epoch;
int index = 0;
auto process = tc->getProcessPtr();
Addr taddr = (Addr)process->getSyscallArg(tc, index);
if (taddr != 0) {
typename OS::time_t t = sec;
@@ -2360,9 +2309,10 @@ timeFunc(SyscallDesc *desc, int callnum, Process *process, ThreadContext *tc)
template <class OS>
SyscallReturn
tgkillFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
tgkillFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto process = tc->getProcessPtr();
int tgid = process->getSyscallArg(tc, index);
int tid = process->getSyscallArg(tc, index);
int sig = process->getSyscallArg(tc, index);
@@ -2402,16 +2352,17 @@ tgkillFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
return -ESRCH;
if (sig == OS::TGT_SIGABRT)
exitGroupFunc(desc, 252, process, tc);
exitGroupFunc(desc, 252, tc);
return 0;
}
template <class OS>
SyscallReturn
socketFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
socketFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int domain = p->getSyscallArg(tc, index);
int type = p->getSyscallArg(tc, index);
int prot = p->getSyscallArg(tc, index);
@@ -2428,9 +2379,10 @@ socketFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
socketpairFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
socketpairFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int domain = p->getSyscallArg(tc, index);
int type = p->getSyscallArg(tc, index);
int prot = p->getSyscallArg(tc, index);
@@ -2454,11 +2406,12 @@ socketpairFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
selectFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
selectFunc(SyscallDesc *desc, int callnum, ThreadContext *tc)
{
int retval;
int index = 0;
auto p = tc->getProcessPtr();
int nfds_t = p->getSyscallArg(tc, index);
Addr fds_read_ptr = p->getSyscallArg(tc, index);
Addr fds_writ_ptr = p->getSyscallArg(tc, index);
@@ -2649,9 +2602,10 @@ selectFunc(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
readFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
readFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr buf_ptr = p->getSyscallArg(tc, index);
int nbytes = p->getSyscallArg(tc, index);
@@ -2679,9 +2633,10 @@ readFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
writeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
writeFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr buf_ptr = p->getSyscallArg(tc, index);
int nbytes = p->getSyscallArg(tc, index);
@@ -2720,9 +2675,10 @@ writeFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
template <class OS>
SyscallReturn
wait4Func(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
wait4Func(SyscallDesc *desc, int num, ThreadContext *tc)
{
int index = 0;
auto p = tc->getProcessPtr();
pid_t pid = p->getSyscallArg(tc, index);
Addr statPtr = p->getSyscallArg(tc, index);
int options = p->getSyscallArg(tc, index);
@@ -2781,12 +2737,13 @@ success:
template <class OS>
SyscallReturn
acceptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
acceptFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
struct sockaddr sa;
socklen_t addrLen;
int host_fd;
int index = 0;
auto p = tc->getProcessPtr();
int tgt_fd = p->getSyscallArg(tc, index);
Addr addrPtr = p->getSyscallArg(tc, index);
Addr lenPtr = p->getSyscallArg(tc, index);
@@ -2851,10 +2808,11 @@ acceptFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
/// Target eventfd() function.
template <class OS>
SyscallReturn
eventfdFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
eventfdFunc(SyscallDesc *desc, int num, ThreadContext *tc)
{
#if defined(__linux__)
int index = 0;
auto p = tc->getProcessPtr();
unsigned initval = p->getSyscallArg(tc, index);
int in_flags = p->getSyscallArg(tc, index);