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Decode arguments to sched_* family of system calls.

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This includes decoding both scheduler policy constants and the sched_param
structure for sched_get_priority_max(), sched_get_priority_min(),
sched_getparam(), sched_getscheduler(), sched_rr_get_interval(),
sched_setparam(), and sched_setscheduler().
This commit is contained in:
jhb 2017-06-16 20:03:09 +00:00
parent 4822870700
commit f4dd073cce
2 changed files with 30 additions and 1 deletions
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2
usr.bin/truss/syscall.h
View File

@ -50,7 +50,7 @@ enum Argtype { None = 1, Hex, Octal, Int, UInt, LongHex, Name, Ptr, Stat, Ioctl,
Kldunloadflags, Sizet, Madvice, Socklent, Sockprotocol, Sockoptlevel,
Sockoptname, Msgflags, CapRights, PUInt, PQuadHex, Acltype,
Extattrnamespace, Minherit, Mlockall, Mountflags, Msync, Priowhich,
Ptraceop, Quotactlcmd, Reboothowto, Rtpriofunc,
Ptraceop, Quotactlcmd, Reboothowto, Rtpriofunc, Schedpolicy, Schedparam,
CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags,
CloudABIFDStat, CloudABIFileStat, CloudABIFileType,

29
usr.bin/truss/syscalls.c
View File

@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$");
#include <err.h>
#include <fcntl.h>
#include <poll.h>
#include <sched.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
@ -395,6 +396,20 @@ static struct syscall decoded_syscalls[] = {
.args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } },
{ .name = "rtprio_thread", .ret_type = 1, .nargs = 3,
.args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } },
{ .name = "sched_get_priority_max", .ret_type = 1, .nargs = 1,
.args = { { Schedpolicy, 0 } } },
{ .name = "sched_get_priority_min", .ret_type = 1, .nargs = 1,
.args = { { Schedpolicy, 0 } } },
{ .name = "sched_getparam", .ret_type = 1, .nargs = 2,
.args = { { Int, 0 }, { Schedparam | OUT, 1 } } },
{ .name = "sched_getscheduler", .ret_type = 1, .nargs = 1,
.args = { { Int, 0 } } },
{ .name = "sched_rr_get_interval", .ret_type = 1, .nargs = 2,
.args = { { Int, 0 }, { Timespec | OUT, 1 } } },
{ .name = "sched_setparam", .ret_type = 1, .nargs = 2,
.args = { { Int, 0 }, { Schedparam, 1 } } },
{ .name = "sched_setscheduler", .ret_type = 1, .nargs = 3,
.args = { { Int, 0 }, { Schedpolicy, 1 }, { Schedparam, 2 } } },
{ .name = "sctp_generic_recvmsg", .ret_type = 1, .nargs = 7,
.args = { { Int, 0 }, { Ptr | IN, 1 }, { Int, 2 },
{ Sockaddr | OUT, 3 }, { Ptr | OUT, 4 }, { Ptr | OUT, 5 },
@ -2155,6 +2170,20 @@ print_arg(struct syscall_args *sc, unsigned long *args, long *retval,
print_integer_arg(sysdecode_rtprio_function, fp,
args[sc->offset]);
break;
case Schedpolicy:
print_integer_arg(sysdecode_scheduler_policy, fp,
args[sc->offset]);
break;
case Schedparam: {
struct sched_param sp;
if (get_struct(pid, (void *)args[sc->offset], &sp,
sizeof(sp)) != -1)
fprintf(fp, "{ %d }", sp.sched_priority);
else
fprintf(fp, "0x%lx", args[sc->offset]);
break;
}
case CloudABIAdvice:
fputs(xlookup(cloudabi_advice, args[sc->offset]), fp);