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-rw-r--r--src/arch/sparc/faults.cc20
-rw-r--r--src/arch/sparc/faults.hh5
-rw-r--r--src/arch/sparc/isa/decoder.isa10
-rw-r--r--src/arch/sparc/linux/process.cc101
-rw-r--r--src/arch/sparc/linux/process.hh55
-rw-r--r--src/arch/sparc/process.cc424
-rw-r--r--src/arch/sparc/process.hh122
7 files changed, 566 insertions, 171 deletions
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index a6f4343ae..391dd7134 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -656,6 +656,26 @@ void FillNNormal::invoke(ThreadContext *tc)
tc->setNextNPC(fillStart + 2*sizeof(MachInst));
}
+void TrapInstruction::invoke(ThreadContext *tc)
+{
+ //In SE, this mechanism is how the process requests a service from the
+ //operating system. We'll get the process object from the thread context
+ //and let it service the request.
+
+ Process *p = tc->getProcessPtr();
+
+ SparcLiveProcess *lp = dynamic_cast<SparcLiveProcess *>(p);
+ assert(lp);
+
+ lp->handleTrap(_n, tc);
+
+ //We need to explicitly advance the pc, since that's not done for us
+ //on a faulting instruction
+ tc->setPC(tc->readNextPC());
+ tc->setNextPC(tc->readNextNPC());
+ tc->setNextNPC(tc->readNextNPC() + sizeof(MachInst));
+}
+
void PageTableFault::invoke(ThreadContext *tc)
{
Process *p = tc->getProcessPtr();
diff --git a/src/arch/sparc/faults.hh b/src/arch/sparc/faults.hh
index 3c0d9674f..5facc081d 100644
--- a/src/arch/sparc/faults.hh
+++ b/src/arch/sparc/faults.hh
@@ -246,9 +246,12 @@ class FillNOther : public EnumeratedFault<FillNOther>
class TrapInstruction : public EnumeratedFault<TrapInstruction>
{
-
public:
TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n) {;}
+ //In SE, trap instructions are requesting services from the OS.
+#if !FULL_SYSTEM
+ void invoke(ThreadContext * tc);
+#endif
};
#if !FULL_SYSTEM
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index 2ce700ef1..50f0dd282 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -1064,27 +1064,17 @@ decode OP default Unknown::unknown()
0x0: Trap::tcci({{
if(passesCondition(Ccr<3:0>, COND2))
{
-#if FULL_SYSTEM
int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
fault = new TrapInstruction(lTrapNum);
-#else
- DPRINTF(Sparc, "The syscall number is %d\n", R1);
- xc->syscall(R1);
-#endif
}
}}, IsSerializeAfter, IsNonSpeculative);
0x2: Trap::tccx({{
if(passesCondition(Ccr<7:4>, COND2))
{
-#if FULL_SYSTEM
int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
fault = new TrapInstruction(lTrapNum);
-#else
- DPRINTF(Sparc, "The syscall number is %d\n", R1);
- xc->syscall(R1);
-#endif
}
}}, IsSerializeAfter, IsNonSpeculative);
}
diff --git a/src/arch/sparc/linux/process.cc b/src/arch/sparc/linux/process.cc
index 565975fe0..9c7c0e643 100644
--- a/src/arch/sparc/linux/process.cc
+++ b/src/arch/sparc/linux/process.cc
@@ -54,7 +54,7 @@ unameFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
strcpy(name->sysname, "Linux");
strcpy(name->nodename, "m5.eecs.umich.edu");
- strcpy(name->release, "2.4.20");
+ strcpy(name->release, "2.6.12");
strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
strcpy(name->machine, "sparc");
@@ -141,7 +141,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 41 */ SyscallDesc("dup", unimplementedFunc),
/* 42 */ SyscallDesc("pipe", pipePseudoFunc),
/* 43 */ SyscallDesc("times", unimplementedFunc),
- /* 44 */ SyscallDesc("getuid32", unimplementedFunc),
+ /* 44 */ SyscallDesc("getuid32", getuidFunc),
/* 45 */ SyscallDesc("umount2", unimplementedFunc),
/* 46 */ SyscallDesc("setgid", unimplementedFunc),
/* 47 */ SyscallDesc("getgid", getgidFunc),
@@ -150,7 +150,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 50 */ SyscallDesc("getegid", getegidFunc),
/* 51 */ SyscallDesc("acct", unimplementedFunc),
/* 52 */ SyscallDesc("memory_ordering", unimplementedFunc),
- /* 53 */ SyscallDesc("getgid32", unimplementedFunc),
+ /* 53 */ SyscallDesc("getgid32", getgidFunc),
/* 54 */ SyscallDesc("ioctl", unimplementedFunc),
/* 55 */ SyscallDesc("reboot", unimplementedFunc),
/* 56 */ SyscallDesc("mmap2", unimplementedFunc),
@@ -160,14 +160,14 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 60 */ SyscallDesc("umask", unimplementedFunc),
/* 61 */ SyscallDesc("chroot", unimplementedFunc),
/* 62 */ SyscallDesc("fstat", fstatFunc<SparcLinux>),
- /* 63 */ SyscallDesc("fstat64", unimplementedFunc),
+ /* 63 */ SyscallDesc("fstat64", fstatFunc<SparcLinux>),
/* 64 */ SyscallDesc("getpagesize", unimplementedFunc),
/* 65 */ SyscallDesc("msync", unimplementedFunc),
/* 66 */ SyscallDesc("vfork", unimplementedFunc),
/* 67 */ SyscallDesc("pread64", unimplementedFunc),
/* 68 */ SyscallDesc("pwrite64", unimplementedFunc),
- /* 69 */ SyscallDesc("geteuid32", unimplementedFunc),
- /* 70 */ SyscallDesc("getdgid32", unimplementedFunc),
+ /* 69 */ SyscallDesc("geteuid32", geteuidFunc),
+ /* 70 */ SyscallDesc("getegid32", getegidFunc),
/* 71 */ SyscallDesc("mmap", mmapFunc<SparcLinux>),
/* 72 */ SyscallDesc("setreuid32", unimplementedFunc),
/* 73 */ SyscallDesc("munmap", munmapFunc),
@@ -184,7 +184,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 84 */ SyscallDesc("ftruncate64", unimplementedFunc),
/* 85 */ SyscallDesc("swapon", unimplementedFunc),
/* 86 */ SyscallDesc("getitimer", unimplementedFunc),
- /* 87 */ SyscallDesc("setuid32", unimplementedFunc),
+ /* 87 */ SyscallDesc("setuid32", setuidFunc),
/* 88 */ SyscallDesc("sethostname", unimplementedFunc),
/* 89 */ SyscallDesc("setgid32", unimplementedFunc),
/* 90 */ SyscallDesc("dup2", unimplementedFunc),
@@ -383,34 +383,79 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 283 */ SyscallDesc("keyctl", unimplementedFunc)
};
-SparcLinuxProcess::SparcLinuxProcess(const std::string &name,
- ObjectFile *objFile,
- System * system,
- int stdin_fd,
- int stdout_fd,
- int stderr_fd,
- std::vector<std::string> &argv,
- std::vector<std::string> &envp,
- const std::string &cwd,
- uint64_t _uid, uint64_t _euid,
- uint64_t _gid, uint64_t _egid,
- uint64_t _pid, uint64_t _ppid)
- : SparcLiveProcess(name, objFile, system,
- stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd,
- _uid, _euid, _gid, _egid, _pid, _ppid),
- Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
+SyscallDesc*
+SparcLinuxProcess::getDesc(int callnum)
+{
+ if (callnum < 0 || callnum > Num_Syscall_Descs)
+ return NULL;
+ return &syscallDescs[callnum];
+}
+
+
+
+SparcLinuxProcess::SparcLinuxProcess() :
+ Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
{
// The sparc syscall table must be <= 284 entries because that is all there
// is space for.
assert(Num_Syscall_Descs <= 284);
}
+Sparc32LinuxProcess::Sparc32LinuxProcess(const std::string &name,
+ ObjectFile *objFile,
+ System * system,
+ int stdin_fd,
+ int stdout_fd,
+ int stderr_fd,
+ std::vector<std::string> &argv,
+ std::vector<std::string> &envp,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid)
+ : Sparc32LiveProcess(name, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid)
+{}
+void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
+{
+ switch(trapNum)
+ {
+ case 0x10: //Linux 32 bit syscall trap
+ tc->syscall(tc->readIntReg(1));
+ break;
+ default:
+ SparcLiveProcess::handleTrap(trapNum, tc);
+ }
+}
-SyscallDesc*
-SparcLinuxProcess::getDesc(int callnum)
+Sparc64LinuxProcess::Sparc64LinuxProcess(const std::string &name,
+ ObjectFile *objFile,
+ System * system,
+ int stdin_fd,
+ int stdout_fd,
+ int stderr_fd,
+ std::vector<std::string> &argv,
+ std::vector<std::string> &envp,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid)
+ : Sparc64LiveProcess(name, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid)
+{}
+
+void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
{
- if (callnum < 0 || callnum > Num_Syscall_Descs)
- return NULL;
- return &syscallDescs[callnum];
+ switch(trapNum)
+ {
+ case 0x10: //Linux 32 bit syscall trap
+ case 0x6d: //Linux 64 bit syscall trap
+ tc->syscall(tc->readIntReg(1));
+ break;
+ default:
+ SparcLiveProcess::handleTrap(trapNum, tc);
+ }
}
diff --git a/src/arch/sparc/linux/process.hh b/src/arch/sparc/linux/process.hh
index e212de973..e3373bb6b 100644
--- a/src/arch/sparc/linux/process.hh
+++ b/src/arch/sparc/linux/process.hh
@@ -38,12 +38,28 @@
namespace SparcISA {
+//This contains all of the common elements of a SPARC Linux process which
+//are not shared by other operating systems. The rest come from the common
+//SPARC process class.
+class SparcLinuxProcess
+{
+ public:
+ SparcLinuxProcess();
+
+ /// Array of syscall descriptors, indexed by call number.
+ static SyscallDesc syscallDescs[];
+
+ SyscallDesc* getDesc(int callnum);
+
+ const int Num_Syscall_Descs;
+};
+
/// A process with emulated SPARC/Linux syscalls.
-class SparcLinuxProcess : public SparcLiveProcess
+class Sparc32LinuxProcess : public SparcLinuxProcess, public Sparc32LiveProcess
{
public:
/// Constructor.
- SparcLinuxProcess(const std::string &name,
+ Sparc32LinuxProcess(const std::string &name,
ObjectFile *objFile,
System * system,
int stdin_fd, int stdout_fd, int stderr_fd,
@@ -54,19 +70,40 @@ class SparcLinuxProcess : public SparcLiveProcess
uint64_t _gid, uint64_t _egid,
uint64_t _pid, uint64_t _ppid);
- virtual SyscallDesc* getDesc(int callnum);
+ SyscallDesc* getDesc(int callnum)
+ {
+ return SparcLinuxProcess::getDesc(callnum);
+ }
- /// The target system's hostname.
- static const char *hostname;
+ void handleTrap(int trapNum, ThreadContext *tc);
+};
- /// Array of syscall descriptors, indexed by call number.
- static SyscallDesc syscallDescs[];
+/// A process with emulated 32 bit SPARC/Linux syscalls.
+class Sparc64LinuxProcess : public SparcLinuxProcess, public Sparc64LiveProcess
+{
+ public:
+ /// Constructor.
+ Sparc64LinuxProcess(const std::string &name,
+ ObjectFile *objFile,
+ System * system,
+ int stdin_fd, int stdout_fd, int stderr_fd,
+ std::vector<std::string> &argv,
+ std::vector<std::string> &envp,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid);
- const int Num_Syscall_Descs;
+ SyscallDesc* getDesc(int callnum)
+ {
+ return SparcLinuxProcess::getDesc(callnum);
+ }
+
+ void handleTrap(int trapNum, ThreadContext *tc);
};
SyscallReturn getresuidFunc(SyscallDesc *desc, int num,
LiveProcess *p, ThreadContext *tc);
} // namespace SparcISA
-#endif // __ALPHA_LINUX_PROCESS_HH__
+#endif // __SPARC_LINUX_PROCESS_HH__
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 1e639b9a5..d5a95e0c0 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -30,6 +30,7 @@
*/
#include "arch/sparc/asi.hh"
+#include "arch/sparc/handlers.hh"
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/process.hh"
#include "arch/sparc/types.hh"
@@ -59,14 +60,6 @@ SparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
brk_point = roundUp(brk_point, VMPageSize);
- // Set up stack. On SPARC Linux, stack goes from the top of memory
- // downward, less the hole for the kernel address space.
- stack_base = (Addr)0x80000000000ULL;
-
- // Set up region for mmaps. Tru64 seems to start just above 0 and
- // grow up from there.
- mmap_start = mmap_end = 0xfffff80000000000ULL;
-
// Set pointer for next thread stack. Reserve 8M for main stack.
next_thread_stack_base = stack_base - (8 * 1024 * 1024);
@@ -75,10 +68,22 @@ SparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
spillStart = 0;
}
+void SparcLiveProcess::handleTrap(int trapNum, ThreadContext *tc)
+{
+ switch(trapNum)
+ {
+ case 0x03: //Flush window trap
+ warn("Ignoring request to flush register windows.\n");
+ break;
+ default:
+ panic("Unimplemented trap to operating system: trap number %#x.\n", trapNum);
+ }
+}
+
void
-SparcLiveProcess::startup()
+Sparc32LiveProcess::startup()
{
- argsInit(sizeof(IntReg), VMPageSize);
+ argsInit(32 / 8, VMPageSize);
//From the SPARC ABI
@@ -117,94 +122,64 @@ SparcLiveProcess::startup()
threadContexts[0]->setMiscReg(MISCREG_ASI, ASI_PRIMARY);
}
-m5_auxv_t buildAuxVect(int64_t type, int64_t val)
+void
+Sparc64LiveProcess::startup()
{
- m5_auxv_t result;
- result.a_type = TheISA::htog(type);
- result.a_val = TheISA::htog(val);
- return result;
-}
+ argsInit(sizeof(IntReg), VMPageSize);
+
+ //From the SPARC ABI
-//We only use 19 instructions for the trap handlers, but there would be
-//space for 32 in a real SPARC trap table.
-const int numFillInsts = 32;
-const int numSpillInsts = 32;
+ //The process runs in user mode
+ threadContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE, 0x02);
+
+ //Setup default FP state
+ threadContexts[0]->setMiscReg(MISCREG_FSR, 0);
+
+ threadContexts[0]->setMiscReg(MISCREG_TICK, 0);
+ //
+ /*
+ * Register window management registers
+ */
+
+ //No windows contain info from other programs
+ //threadContexts[0]->setMiscReg(MISCREG_OTHERWIN, 0);
+ threadContexts[0]->setIntReg(NumIntArchRegs + 6, 0);
+ //There are no windows to pop
+ //threadContexts[0]->setMiscReg(MISCREG_CANRESTORE, 0);
+ threadContexts[0]->setIntReg(NumIntArchRegs + 4, 0);
+ //All windows are available to save into
+ //threadContexts[0]->setMiscReg(MISCREG_CANSAVE, NWindows - 2);
+ threadContexts[0]->setIntReg(NumIntArchRegs + 3, NWindows - 2);
+ //All windows are "clean"
+ //threadContexts[0]->setMiscReg(MISCREG_CLEANWIN, NWindows);
+ threadContexts[0]->setIntReg(NumIntArchRegs + 5, NWindows);
+ //Start with register window 0
+ threadContexts[0]->setMiscReg(MISCREG_CWP, 0);
+ //Always use spill and fill traps 0
+ //threadContexts[0]->setMiscReg(MISCREG_WSTATE, 0);
+ threadContexts[0]->setIntReg(NumIntArchRegs + 7, 0);
+ //Set the trap level to 0
+ threadContexts[0]->setMiscReg(MISCREG_TL, 0);
+ //Set the ASI register to something fixed
+ threadContexts[0]->setMiscReg(MISCREG_ASI, ASI_PRIMARY);
+}
-MachInst fillHandler[numFillInsts] =
+M5_32_auxv_t::M5_32_auxv_t(int32_t type, int32_t val)
{
- htog(0x87802018), //wr %g0, ASI_AIUP, %asi
- htog(0xe0dba7ff), //ldxa [%sp + BIAS + (0*8)] %asi, %l0
- htog(0xe2dba807), //ldxa [%sp + BIAS + (1*8)] %asi, %l1
- htog(0xe4dba80f), //ldxa [%sp + BIAS + (2*8)] %asi, %l2
- htog(0xe6dba817), //ldxa [%sp + BIAS + (3*8)] %asi, %l3
- htog(0xe8dba81f), //ldxa [%sp + BIAS + (4*8)] %asi, %l4
- htog(0xeadba827), //ldxa [%sp + BIAS + (5*8)] %asi, %l5
- htog(0xecdba82f), //ldxa [%sp + BIAS + (6*8)] %asi, %l6
- htog(0xeedba837), //ldxa [%sp + BIAS + (7*8)] %asi, %l7
- htog(0xf0dba83f), //ldxa [%sp + BIAS + (8*8)] %asi, %i0
- htog(0xf2dba847), //ldxa [%sp + BIAS + (9*8)] %asi, %i1
- htog(0xf4dba84f), //ldxa [%sp + BIAS + (10*8)] %asi, %i2
- htog(0xf6dba857), //ldxa [%sp + BIAS + (11*8)] %asi, %i3
- htog(0xf8dba85f), //ldxa [%sp + BIAS + (12*8)] %asi, %i4
- htog(0xfadba867), //ldxa [%sp + BIAS + (13*8)] %asi, %i5
- htog(0xfcdba86f), //ldxa [%sp + BIAS + (14*8)] %asi, %i6
- htog(0xfedba877), //ldxa [%sp + BIAS + (15*8)] %asi, %i7
- htog(0x83880000), //restored
- htog(0x83F00000), //retry
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000) //illtrap
-};
-
-MachInst spillHandler[numSpillInsts] =
+ a_type = TheISA::htog(type);
+ a_val = TheISA::htog(val);
+}
+
+M5_64_auxv_t::M5_64_auxv_t(int64_t type, int64_t val)
{
- htog(0x87802018), //wr %g0, ASI_AIUP, %asi
- htog(0xe0f3a7ff), //stxa %l0, [%sp + BIAS + (0*8)] %asi
- htog(0xe2f3a807), //stxa %l1, [%sp + BIAS + (1*8)] %asi
- htog(0xe4f3a80f), //stxa %l2, [%sp + BIAS + (2*8)] %asi
- htog(0xe6f3a817), //stxa %l3, [%sp + BIAS + (3*8)] %asi
- htog(0xe8f3a81f), //stxa %l4, [%sp + BIAS + (4*8)] %asi
- htog(0xeaf3a827), //stxa %l5, [%sp + BIAS + (5*8)] %asi
- htog(0xecf3a82f), //stxa %l6, [%sp + BIAS + (6*8)] %asi
- htog(0xeef3a837), //stxa %l7, [%sp + BIAS + (7*8)] %asi
- htog(0xf0f3a83f), //stxa %i0, [%sp + BIAS + (8*8)] %asi
- htog(0xf2f3a847), //stxa %i1, [%sp + BIAS + (9*8)] %asi
- htog(0xf4f3a84f), //stxa %i2, [%sp + BIAS + (10*8)] %asi
- htog(0xf6f3a857), //stxa %i3, [%sp + BIAS + (11*8)] %asi
- htog(0xf8f3a85f), //stxa %i4, [%sp + BIAS + (12*8)] %asi
- htog(0xfaf3a867), //stxa %i5, [%sp + BIAS + (13*8)] %asi
- htog(0xfcf3a86f), //stxa %i6, [%sp + BIAS + (14*8)] %asi
- htog(0xfef3a877), //stxa %i7, [%sp + BIAS + (15*8)] %asi
- htog(0x81880000), //saved
- htog(0x83F00000), //retry
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000), //illtrap
- htog(0x00000000) //illtrap
-};
+ a_type = TheISA::htog(type);
+ a_val = TheISA::htog(val);
+}
void
-SparcLiveProcess::argsInit(int intSize, int pageSize)
+Sparc64LiveProcess::argsInit(int intSize, int pageSize)
{
+ typedef M5_64_auxv_t auxv_t;
Process::startup();
string filename;
@@ -265,34 +240,34 @@ SparcLiveProcess::argsInit(int intSize, int pageSize)
if(elfObject)
{
//Bits which describe the system hardware capabilities
- auxv.push_back(buildAuxVect(SPARC_AT_HWCAP, hwcap));
+ auxv.push_back(auxv_t(SPARC_AT_HWCAP, hwcap));
//The system page size
- auxv.push_back(buildAuxVect(SPARC_AT_PAGESZ, SparcISA::VMPageSize));
+ auxv.push_back(auxv_t(SPARC_AT_PAGESZ, SparcISA::VMPageSize));
//Defined to be 100 in the kernel source.
//Frequency at which times() increments
- auxv.push_back(buildAuxVect(SPARC_AT_CLKTCK, 100));
+ auxv.push_back(auxv_t(SPARC_AT_CLKTCK, 100));
// For statically linked executables, this is the virtual address of the
// program header tables if they appear in the executable image
- auxv.push_back(buildAuxVect(SPARC_AT_PHDR, elfObject->programHeaderTable()));
+ auxv.push_back(auxv_t(SPARC_AT_PHDR, elfObject->programHeaderTable()));
// This is the size of a program header entry from the elf file.
- auxv.push_back(buildAuxVect(SPARC_AT_PHENT, elfObject->programHeaderSize()));
+ auxv.push_back(auxv_t(SPARC_AT_PHENT, elfObject->programHeaderSize()));
// This is the number of program headers from the original elf file.
- auxv.push_back(buildAuxVect(SPARC_AT_PHNUM, elfObject->programHeaderCount()));
+ auxv.push_back(auxv_t(SPARC_AT_PHNUM, elfObject->programHeaderCount()));
//This is the address of the elf "interpreter", It should be set
//to 0 for regular executables. It should be something else
//(not sure what) for dynamic libraries.
- auxv.push_back(buildAuxVect(SPARC_AT_BASE, 0));
+ auxv.push_back(auxv_t(SPARC_AT_BASE, 0));
//This is hardwired to 0 in the elf loading code in the kernel
- auxv.push_back(buildAuxVect(SPARC_AT_FLAGS, 0));
+ auxv.push_back(auxv_t(SPARC_AT_FLAGS, 0));
//The entry point to the program
- auxv.push_back(buildAuxVect(SPARC_AT_ENTRY, objFile->entryPoint()));
+ auxv.push_back(auxv_t(SPARC_AT_ENTRY, objFile->entryPoint()));
//Different user and group IDs
- auxv.push_back(buildAuxVect(SPARC_AT_UID, uid()));
- auxv.push_back(buildAuxVect(SPARC_AT_EUID, euid()));
- auxv.push_back(buildAuxVect(SPARC_AT_GID, gid()));
- auxv.push_back(buildAuxVect(SPARC_AT_EGID, egid()));
+ auxv.push_back(auxv_t(SPARC_AT_UID, uid()));
+ auxv.push_back(auxv_t(SPARC_AT_EUID, euid()));
+ auxv.push_back(auxv_t(SPARC_AT_GID, gid()));
+ auxv.push_back(auxv_t(SPARC_AT_EGID, egid()));
//Whether to enable "secure mode" in the executable
- auxv.push_back(buildAuxVect(SPARC_AT_SECURE, 0));
+ auxv.push_back(auxv_t(SPARC_AT_SECURE, 0));
}
//Figure out how big the initial stack needs to be
@@ -419,8 +394,8 @@ SparcLiveProcess::argsInit(int intSize, int pageSize)
int spillSize = sizeof(MachInst) * numSpillInsts;
fillStart = stack_base;
spillStart = fillStart + fillSize;
- initVirtMem->writeBlob(fillStart, (uint8_t*)fillHandler, fillSize);
- initVirtMem->writeBlob(spillStart, (uint8_t*)spillHandler, spillSize);
+ initVirtMem->writeBlob(fillStart, (uint8_t*)fillHandler64, fillSize);
+ initVirtMem->writeBlob(spillStart, (uint8_t*)spillHandler64, spillSize);
//Set up the thread context to start running the process
threadContexts[0]->setIntReg(ArgumentReg0, argc);
@@ -437,3 +412,240 @@ SparcLiveProcess::argsInit(int intSize, int pageSize)
// num_processes++;
}
+
+void
+Sparc32LiveProcess::argsInit(int intSize, int pageSize)
+{
+ typedef M5_32_auxv_t auxv_t;
+ Process::startup();
+
+ string filename;
+ if(argv.size() < 1)
+ filename = "";
+ else
+ filename = argv[0];
+
+ Addr alignmentMask = ~(intSize - 1);
+
+ // load object file into target memory
+ objFile->loadSections(initVirtMem);
+
+ //These are the auxilliary vector types
+ enum auxTypes
+ {
+ SPARC_AT_HWCAP = 16,
+ SPARC_AT_PAGESZ = 6,
+ SPARC_AT_CLKTCK = 17,
+ SPARC_AT_PHDR = 3,
+ SPARC_AT_PHENT = 4,
+ SPARC_AT_PHNUM = 5,
+ SPARC_AT_BASE = 7,
+ SPARC_AT_FLAGS = 8,
+ SPARC_AT_ENTRY = 9,
+ SPARC_AT_UID = 11,
+ SPARC_AT_EUID = 12,
+ SPARC_AT_GID = 13,
+ SPARC_AT_EGID = 14,
+ SPARC_AT_SECURE = 23
+ };
+
+ enum hardwareCaps
+ {
+ M5_HWCAP_SPARC_FLUSH = 1,
+ M5_HWCAP_SPARC_STBAR = 2,
+ M5_HWCAP_SPARC_SWAP = 4,
+ M5_HWCAP_SPARC_MULDIV = 8,
+ M5_HWCAP_SPARC_V9 = 16,
+ //This one should technically only be set
+ //if there is a cheetah or cheetah_plus tlb,
+ //but we'll use it all the time
+ M5_HWCAP_SPARC_ULTRA3 = 32
+ };
+
+ const int64_t hwcap =
+ M5_HWCAP_SPARC_FLUSH |
+ M5_HWCAP_SPARC_STBAR |
+ M5_HWCAP_SPARC_SWAP |
+ M5_HWCAP_SPARC_MULDIV |
+ M5_HWCAP_SPARC_V9 |
+ M5_HWCAP_SPARC_ULTRA3;
+
+
+ //Setup the auxilliary vectors. These will already have endian conversion.
+ //Auxilliary vectors are loaded only for elf formatted executables.
+ ElfObject * elfObject = dynamic_cast<ElfObject *>(objFile);
+ if(elfObject)
+ {
+ //Bits which describe the system hardware capabilities
+ auxv.push_back(auxv_t(SPARC_AT_HWCAP, hwcap));
+ //The system page size
+ auxv.push_back(auxv_t(SPARC_AT_PAGESZ, SparcISA::VMPageSize));
+ //Defined to be 100 in the kernel source.
+ //Frequency at which times() increments
+ auxv.push_back(auxv_t(SPARC_AT_CLKTCK, 100));
+ // For statically linked executables, this is the virtual address of the
+ // program header tables if they appear in the executable image
+ auxv.push_back(auxv_t(SPARC_AT_PHDR, elfObject->programHeaderTable()));
+ // This is the size of a program header entry from the elf file.
+ auxv.push_back(auxv_t(SPARC_AT_PHENT, elfObject->programHeaderSize()));
+ // This is the number of program headers from the original elf file.
+ auxv.push_back(auxv_t(SPARC_AT_PHNUM, elfObject->programHeaderCount()));
+ //This is the address of the elf "interpreter", It should be set
+ //to 0 for regular executables. It should be something else
+ //(not sure what) for dynamic libraries.
+ auxv.push_back(auxv_t(SPARC_AT_BASE, 0));
+ //This is hardwired to 0 in the elf loading code in the kernel
+ auxv.push_back(auxv_t(SPARC_AT_FLAGS, 0));
+ //The entry point to the program
+ auxv.push_back(auxv_t(SPARC_AT_ENTRY, objFile->entryPoint()));
+ //Different user and group IDs
+ auxv.push_back(auxv_t(SPARC_AT_UID, uid()));
+ auxv.push_back(auxv_t(SPARC_AT_EUID, euid()));
+ auxv.push_back(auxv_t(SPARC_AT_GID, gid()));
+ auxv.push_back(auxv_t(SPARC_AT_EGID, egid()));
+ //Whether to enable "secure mode" in the executable
+ auxv.push_back(auxv_t(SPARC_AT_SECURE, 0));
+ }
+
+ //Figure out how big the initial stack needs to be
+
+ // The unaccounted for 0 at the top of the stack
+ int mysterious_size = intSize;
+
+ //This is the name of the file which is present on the initial stack
+ //It's purpose is to let the user space linker examine the original file.
+ int file_name_size = filename.size() + 1;
+
+ int env_data_size = 0;
+ for (int i = 0; i < envp.size(); ++i) {
+ env_data_size += envp[i].size() + 1;
+ }
+ int arg_data_size = 0;
+ for (int i = 0; i < argv.size(); ++i) {
+ arg_data_size += argv[i].size() + 1;
+ }
+
+ //The info_block needs to be padded so it's size is a multiple of the
+ //alignment mask. Also, it appears that there needs to be at least some
+ //padding, so if the size is already a multiple, we need to increase it
+ //anyway.
+ int info_block_size =
+ (file_name_size +
+ env_data_size +
+ arg_data_size +
+ intSize) & alignmentMask;
+
+ int info_block_padding =
+ info_block_size -
+ file_name_size -
+ env_data_size -
+ arg_data_size;
+
+ //Each auxilliary vector is two 8 byte words
+ int aux_array_size = intSize * 2 * (auxv.size() + 1);
+
+ int envp_array_size = intSize * (envp.size() + 1);
+ int argv_array_size = intSize * (argv.size() + 1);
+
+ int argc_size = intSize;
+ int window_save_size = intSize * 16;
+
+ int space_needed =
+ mysterious_size +
+ info_block_size +
+ aux_array_size +
+ envp_array_size +
+ argv_array_size +
+ argc_size +
+ window_save_size;
+
+ stack_min = stack_base - space_needed;
+ stack_min &= alignmentMask;
+ stack_size = stack_base - stack_min;
+
+ // map memory
+ pTable->allocate(roundDown(stack_min, pageSize),
+ roundUp(stack_size, pageSize));
+
+ // map out initial stack contents
+ Addr mysterious_base = stack_base - mysterious_size;
+ Addr file_name_base = mysterious_base - file_name_size;
+ Addr env_data_base = file_name_base - env_data_size;
+ Addr arg_data_base = env_data_base - arg_data_size;
+ Addr auxv_array_base = arg_data_base - aux_array_size - info_block_padding;
+ Addr envp_array_base = auxv_array_base - envp_array_size;
+ Addr argv_array_base = envp_array_base - argv_array_size;
+ Addr argc_base = argv_array_base - argc_size;
+#ifndef NDEBUG
+ // only used in DPRINTF
+ Addr window_save_base = argc_base - window_save_size;
+#endif
+
+ DPRINTF(Sparc, "The addresses of items on the initial stack:\n");
+ DPRINTF(Sparc, "0x%x - file name\n", file_name_base);
+ DPRINTF(Sparc, "0x%x - env data\n", env_data_base);
+ DPRINTF(Sparc, "0x%x - arg data\n", arg_data_base);
+ DPRINTF(Sparc, "0x%x - auxv array\n", auxv_array_base);
+ DPRINTF(Sparc, "0x%x - envp array\n", envp_array_base);
+ DPRINTF(Sparc, "0x%x - argv array\n", argv_array_base);
+ DPRINTF(Sparc, "0x%x - argc \n", argc_base);
+ DPRINTF(Sparc, "0x%x - window save\n", window_save_base);
+ DPRINTF(Sparc, "0x%x - stack min\n", stack_min);
+
+ // write contents to stack
+
+ // figure out argc
+ uint32_t argc = argv.size();
+ uint32_t guestArgc = TheISA::htog(argc);
+
+ //Write out the mysterious 0
+ uint64_t mysterious_zero = 0;
+ initVirtMem->writeBlob(mysterious_base,
+ (uint8_t*)&mysterious_zero, mysterious_size);
+
+ //Write the file name
+ initVirtMem->writeString(file_name_base, filename.c_str());
+
+ //Copy the aux stuff
+ for(int x = 0; x < auxv.size(); x++)
+ {
+ initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize,
+ (uint8_t*)&(auxv[x].a_type), intSize);
+ initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * intSize,
+ (uint8_t*)&(auxv[x].a_val), intSize);
+ }
+ //Write out the terminating zeroed auxilliary vector
+ const uint64_t zero = 0;
+ initVirtMem->writeBlob(auxv_array_base + 2 * intSize * auxv.size(),
+ (uint8_t*)&zero, 2 * intSize);
+
+ copyStringArray(envp, envp_array_base, env_data_base, initVirtMem, intSize);
+ copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem, intSize);
+
+ initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize);
+
+ //Stuff the trap handlers into the processes address space.
+ //Since the stack grows down and is the highest area in the processes
+ //address space, we can put stuff above it and stay out of the way.
+ int fillSize = sizeof(MachInst) * numFillInsts;
+ int spillSize = sizeof(MachInst) * numSpillInsts;
+ fillStart = stack_base;
+ spillStart = fillStart + fillSize;
+ initVirtMem->writeBlob(fillStart, (uint8_t*)fillHandler32, fillSize);
+ initVirtMem->writeBlob(spillStart, (uint8_t*)spillHandler32, spillSize);
+
+ //Set up the thread context to start running the process
+ threadContexts[0]->setIntReg(ArgumentReg0, argc);
+ threadContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
+ threadContexts[0]->setIntReg(StackPointerReg, stack_min);
+
+ Addr prog_entry = objFile->entryPoint();
+ threadContexts[0]->setPC(prog_entry);
+ threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
+ threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
+
+ //Align the "stack_min" to a page boundary.
+ stack_min = roundDown(stack_min, pageSize);
+
+// num_processes++;
+}
diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh
index 1cf7ec224..2512441c6 100644
--- a/src/arch/sparc/process.hh
+++ b/src/arch/sparc/process.hh
@@ -39,27 +39,13 @@
class ObjectFile;
class System;
-typedef struct
-{
- int64_t a_type;
- union {
- int64_t a_val;
- Addr a_ptr;
- Addr a_fcn;
- };
-} m5_auxv_t;
-
class SparcLiveProcess : public LiveProcess
{
protected:
- static const Addr StackBias = 2047;
-
//The locations of the fill and spill handlers
Addr fillStart, spillStart;
- std::vector<m5_auxv_t> auxv;
-
SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
@@ -69,11 +55,10 @@ class SparcLiveProcess : public LiveProcess
uint64_t _gid, uint64_t _egid,
uint64_t _pid, uint64_t _ppid);
- void startup();
-
public:
- void argsInit(int intSize, int pageSize);
+ //Handles traps which request services from the operating system
+ virtual void handleTrap(int trapNum, ThreadContext *tc);
Addr readFillStart()
{ return fillStart; }
@@ -83,4 +68,107 @@ class SparcLiveProcess : public LiveProcess
};
+struct M5_32_auxv_t
+{
+ int32_t a_type;
+ union {
+ int32_t a_val;
+ int32_t a_ptr;
+ int32_t a_fcn;
+ };
+
+ M5_32_auxv_t()
+ {}
+
+ M5_32_auxv_t(int32_t type, int32_t val);
+};
+
+class Sparc32LiveProcess : public SparcLiveProcess
+{
+ protected:
+
+ std::vector<M5_32_auxv_t> auxv;
+
+ Sparc32LiveProcess(const std::string &nm, ObjectFile *objFile,
+ System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
+ std::vector<std::string> &argv,
+ std::vector<std::string> &envp,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid) :
+ SparcLiveProcess(nm, objFile, _system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid)
+ {
+ // Set up stack. On SPARC Linux, stack goes from the top of memory
+ // downward, less the hole for the kernel address space.
+ stack_base = (Addr)0xf0000000ULL;
+
+ // Set up region for mmaps.
+ mmap_start = mmap_end = 0x70000000;
+ }
+
+ void startup();
+
+ public:
+
+ void argsInit(int intSize, int pageSize);
+
+};
+
+struct M5_64_auxv_t
+{
+ int64_t a_type;
+ union {
+ int64_t a_val;
+ int64_t a_ptr;
+ int64_t a_fcn;
+ };
+
+ M5_64_auxv_t()
+ {}
+
+ M5_64_auxv_t(int64_t type, int64_t val);
+};
+
+class Sparc64LiveProcess : public SparcLiveProcess
+{
+ protected:
+
+ static const Addr StackBias = 2047;
+
+ std::vector<M5_64_auxv_t> auxv;
+
+ Sparc64LiveProcess(const std::string &nm, ObjectFile *objFile,
+ System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
+ std::vector<std::string> &argv,
+ std::vector<std::string> &envp,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid) :
+ SparcLiveProcess(nm, objFile, _system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid)
+ {
+ // Set up stack. On SPARC Linux, stack goes from the top of memory
+ // downward, less the hole for the kernel address space.
+ stack_base = (Addr)0x80000000000ULL;
+
+ // Set up region for mmaps. Tru64 seems to start just above 0 and
+ // grow up from there.
+ mmap_start = mmap_end = 0xfffff80000000000ULL;
+ }
+
+ void startup();
+
+ public:
+
+ void argsInit(int intSize, int pageSize);
+
+};
+
#endif // __SPARC_PROCESS_HH__
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 01:59:10 +0000