sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

X86: Handle 32 bit system call arguments.

Browse source
This commit is contained in:
Gabe Black 2009-02-27 09:22:30 -08:00
parent 9a000c5173
commit 6ca53f8675
1 changed files with 13 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/arch/x86/process.cc
View file

@ -116,6 +116,14 @@ static const int ArgumentReg[] = {
INTREG_R9W INTREG_R9W
}; };
static const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int); static const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int);
static const int ArgumentReg32[] = {
INTREG_EBX,
INTREG_ECX,
INTREG_EDX,
INTREG_ESI,
INTREG_EDI,
};
static const int NumArgumentRegs32 = sizeof(ArgumentReg) / sizeof(const int);
X86LiveProcess::X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile, X86LiveProcess::X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile,
SyscallDesc *_syscallDescs, int _numSyscallDescs) : SyscallDesc *_syscallDescs, int _numSyscallDescs) :
@ -260,6 +268,7 @@ I386LiveProcess::startup()
tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0); tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0);
tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr); tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr);
tc->setMiscRegNoEffect(MISCREG_SEG_SEL(seg), 0xB); tc->setMiscRegNoEffect(MISCREG_SEG_SEL(seg), 0xB);
tc->setMiscRegNoEffect(MISCREG_SEG_LIMIT(seg), (uint32_t)(-1));
} }
SegAttr csAttr = 0; SegAttr csAttr = 0;
@ -610,11 +619,13 @@ X86_64LiveProcess::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val)
X86ISA::IntReg X86ISA::IntReg
I386LiveProcess::getSyscallArg(ThreadContext *tc, int i) I386LiveProcess::getSyscallArg(ThreadContext *tc, int i)
{ {
panic("32 bit getSyscallArg not implemented.\n"); assert(i < NumArgumentRegs32);
return tc->readIntReg(ArgumentReg32[i]);
} }
void void
I386LiveProcess::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val) I386LiveProcess::setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val)
{ {
panic("32 bit setSyscallArg not implemented.\n"); assert(i < NumArgumentRegs);
return tc->setIntReg(ArgumentReg[i], val);
} }