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syscall_emul: Implement clock_getres() system call

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This patch implements the clock_getres() system call for arm and x86 in linux
SE mode.
This commit is contained in:
Michael LeBeane 2016-02-13 12:33:07 -05:00
parent c6cede244b
commit 8d923c7380
3 changed files with 19 additions and 2 deletions
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2
src/arch/arm/linux/process.cc
View file

@ -383,7 +383,7 @@ static SyscallDesc syscallDescs32[] = {
/* 261 */ SyscallDesc("timer_delete", unimplementedFunc),
/* 262 */ SyscallDesc("clock_settime", unimplementedFunc),
/* 263 */ SyscallDesc("clock_gettime", clock_gettimeFunc<ArmLinux32>),
/* 264 */ SyscallDesc("clock_getres", unimplementedFunc),
/* 264 */ SyscallDesc("clock_getres", clock_getresFunc<ArmLinux32>),
/* 265 */ SyscallDesc("clock_nanosleep", unimplementedFunc),
/* 266 */ SyscallDesc("statfs64", unimplementedFunc),
/* 267 */ SyscallDesc("fstatfs64", unimplementedFunc),

2
src/arch/x86/linux/process.cc
View file

@ -447,7 +447,7 @@ static SyscallDesc syscallDescs64[] = {
/* 226 */ SyscallDesc("timer_delete", unimplementedFunc),
/* 227 */ SyscallDesc("clock_settime", unimplementedFunc),
/* 228 */ SyscallDesc("clock_gettime", clock_gettimeFunc<X86Linux64>),
/* 229 */ SyscallDesc("clock_getres", unimplementedFunc),
/* 229 */ SyscallDesc("clock_getres", clock_getresFunc<X86Linux64>),
/* 230 */ SyscallDesc("clock_nanosleep", unimplementedFunc),
/* 231 */ SyscallDesc("exit_group", exitGroupFunc),
/* 232 */ SyscallDesc("epoll_wait", unimplementedFunc),

17
src/sim/syscall_emul.hh
View file

@ -1357,6 +1357,23 @@ clock_gettimeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
return 0;
}
/// Target clock_getres() function.
template <class OS>
SyscallReturn
clock_getresFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
{
int index = 1;
TypedBufferArg<typename OS::timespec> tp(p->getSyscallArg(tc, index));
// Set resolution at ns, which is what clock_gettime() returns
tp->tv_sec = 0;
tp->tv_nsec = 1;
tp.copyOut(tc->getMemProxy());
return 0;
}
/// Target gettimeofday() handler.
template <class OS>
SyscallReturn