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syscall_emul: style fixes (mostly wrapping overly long lines)

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This commit is contained in:
Steve Reinhardt 2009-04-21 08:17:36 -07:00
parent 52b6764f31
commit 03b3925e58
1 changed files with 28 additions and 20 deletions
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48
src/sim/syscall_emul.cc
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@ -52,8 +52,9 @@ using namespace TheISA;
void
SyscallDesc::doSyscall(int callnum, LiveProcess *process, ThreadContext *tc)
{
DPRINTFR(SyscallVerbose, "%d: %s: syscall %s called w/arguments %d,%d,%d,%d\n",
curTick,tc->getCpuPtr()->name(), name,
DPRINTFR(SyscallVerbose,
"%d: %s: syscall %s called w/arguments %d,%d,%d,%d\n",
curTick, tc->getCpuPtr()->name(), name,
process->getSyscallArg(tc, 0), process->getSyscallArg(tc, 1),
process->getSyscallArg(tc, 2), process->getSyscallArg(tc, 3));
@ -226,10 +227,10 @@ _llseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
//The seek failed.
return -errno;
} else {
//The seek succeeded.
//Copy "result" to "result_ptr"
//XXX We'll assume that the size of loff_t is 64 bits on the
//target platform
// The seek succeeded.
// Copy "result" to "result_ptr"
// XXX We'll assume that the size of loff_t is 64 bits on the
// target platform
BufferArg result_buf(result_ptr, sizeof(result));
memcpy(result_buf.bufferPtr(), &result, sizeof(result));
result_buf.copyOut(tc->getMemPort());
@ -389,7 +390,8 @@ truncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
}
SyscallReturn
ftruncateFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
ftruncateFunc(SyscallDesc *desc, int num,
LiveProcess *process, ThreadContext *tc)
{
int fd = process->sim_fd(process->getSyscallArg(tc, 0));
@ -463,7 +465,8 @@ dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
Process::FdMap *fdo = process->sim_fd_obj(process->getSyscallArg(tc, 0));
int result = dup(fd);
return (result == -1) ? -errno : process->alloc_fd(result, fdo->filename, fdo->flags, fdo->mode, false);
return (result == -1) ? -errno :
process->alloc_fd(result, fdo->filename, fdo->flags, fdo->mode, false);
}
@ -660,27 +663,31 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
{
DPRINTF(SyscallVerbose, "In sys_clone:\n");
DPRINTF(SyscallVerbose, " Flags=%llx\n", process->getSyscallArg(tc, 0));
DPRINTF(SyscallVerbose, " Child stack=%llx\n", process->getSyscallArg(tc, 1));
DPRINTF(SyscallVerbose, " Child stack=%llx\n",
process->getSyscallArg(tc, 1));
if (process->getSyscallArg(tc, 0) != 0x10f00) {
warn("This sys_clone implementation assumes flags CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD (0x10f00), and may not work correctly with given flags 0x%llx\n", process->getSyscallArg(tc, 0));
warn("This sys_clone implementation assumes flags "
"CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD "
"(0x10f00), and may not work correctly with given flags "
"0x%llx\n", process->getSyscallArg(tc, 0));
}
ThreadContext* ctc; //child thread context
ThreadContext* ctc; // child thread context
if ( ( ctc = process->findFreeContext() ) != NULL ) {
DPRINTF(SyscallVerbose, " Found unallocated thread context\n");
ctc->clearArchRegs();
//Arch-specific cloning code
// Arch-specific cloning code
#if THE_ISA == ALPHA_ISA or THE_ISA == X86_ISA
//Cloning the misc. regs for these archs is enough
// Cloning the misc. regs for these archs is enough
TheISA::copyMiscRegs(tc, ctc);
#elif THE_ISA == SPARC_ISA
TheISA::copyRegs(tc, ctc);
//TODO: Explain what this code actually does :-)
// TODO: Explain what this code actually does :-)
ctc->setIntReg(NumIntArchRegs + 6, 0);
ctc->setIntReg(NumIntArchRegs + 4, 0);
ctc->setIntReg(NumIntArchRegs + 3, NWindows - 2);
@ -696,18 +703,19 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
fatal("sys_clone is not implemented for this ISA\n");
#endif
//Set up stack register
// Set up stack register
ctc->setIntReg(TheISA::StackPointerReg, process->getSyscallArg(tc, 1));
//Set up syscall return values in parent and child
ctc->setIntReg(ReturnValueReg, 0); //return value, child
// Set up syscall return values in parent and child
ctc->setIntReg(ReturnValueReg, 0); // return value, child
//Alpha needs SyscallSuccessReg=0 in child
// Alpha needs SyscallSuccessReg=0 in child
#if THE_ISA == ALPHA_ISA
ctc->setIntReg(TheISA::SyscallSuccessReg, 0);
#endif
//In SPARC/Linux, clone returns 0 on pseudo-return register if parent, non-zero if child
// In SPARC/Linux, clone returns 0 on pseudo-return register if
// parent, non-zero if child
#if THE_ISA == SPARC_ISA
tc->setIntReg(TheISA::SyscallPseudoReturnReg, 0);
ctc->setIntReg(TheISA::SyscallPseudoReturnReg, 1);
@ -716,7 +724,7 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ctc->setPC(tc->readNextPC());
ctc->setNextPC(tc->readNextPC() + sizeof(TheISA::MachInst));
//In SPARC, need NNPC too...
// In SPARC, need NNPC too...
#if THE_ISA == SPARC_ISA
ctc->setNextNPC(tc->readNextNPC() + sizeof(TheISA::MachInst));
#endif