Trace timeval parameters to the getitimer(2) and setitimer(2) syscalls.
Reviewed by: jhb Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D7158
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parent
1d148a7c3f
commit
de56aee0bf
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=302770
@ -32,6 +32,8 @@
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ktrace.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/limits.h>
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@ -54,6 +56,9 @@ __FBSDID("$FreeBSD$");
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#include <sys/timers.h>
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#include <sys/timetc.h>
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#include <sys/vnode.h>
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#ifdef KTRACE
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#include <sys/ktrace.h>
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#endif
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#include <vm/vm.h>
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#include <vm/vm_extern.h>
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@ -701,6 +706,10 @@ kern_getitimer(struct thread *td, u_int which, struct itimerval *aitv)
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*aitv = p->p_stats->p_timer[which];
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PROC_ITIMUNLOCK(p);
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}
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#ifdef KTRACE
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if (KTRPOINT(td, KTR_STRUCT))
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ktritimerval(aitv);
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#endif
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return (0);
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}
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@ -742,6 +751,10 @@ kern_setitimer(struct thread *td, u_int which, struct itimerval *aitv,
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if (which > ITIMER_PROF)
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return (EINVAL);
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#ifdef KTRACE
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if (KTRPOINT(td, KTR_STRUCT))
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ktritimerval(aitv);
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#endif
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if (itimerfix(&aitv->it_value) ||
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aitv->it_value.tv_sec > INT32_MAX / 2)
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return (EINVAL);
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@ -786,6 +799,10 @@ kern_setitimer(struct thread *td, u_int which, struct itimerval *aitv,
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p->p_stats->p_timer[which] = *aitv;
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PROC_ITIMUNLOCK(p);
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}
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#ifdef KTRACE
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if (KTRPOINT(td, KTR_STRUCT))
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ktritimerval(oitv);
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#endif
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return (0);
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}
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@ -270,6 +270,8 @@ void ktrcapfail(enum ktr_cap_fail_type, const cap_rights_t *,
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const cap_rights_t *);
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#define ktrcaprights(s) \
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ktrstruct("caprights", (s), sizeof(cap_rights_t))
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#define ktritimerval(s) \
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ktrstruct("itimerval", (s), sizeof(struct itimerval))
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#define ktrsockaddr(s) \
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ktrstruct("sockaddr", (s), ((struct sockaddr *)(s))->sa_len)
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#define ktrstat(s) \
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@ -109,6 +109,7 @@ void ktruser_malloc(void *);
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void ktruser_rtld(int, void *);
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void ktruser(int, void *);
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void ktrcaprights(cap_rights_t *);
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void ktritimerval(struct itimerval *it);
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void ktrsockaddr(struct sockaddr *);
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void ktrstat(struct stat *);
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void ktrstruct(char *, size_t);
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@ -1562,6 +1563,24 @@ ktrcaprights(cap_rights_t *rightsp)
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printf("\n");
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}
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static void
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ktrtimeval(struct timeval *tv)
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{
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printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
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}
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void
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ktritimerval(struct itimerval *it)
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{
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printf("itimerval { .interval = ");
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ktrtimeval(&it->it_interval);
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printf(", .value = ");
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ktrtimeval(&it->it_value);
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printf(" }\n");
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}
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void
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ktrsockaddr(struct sockaddr *sa)
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{
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@ -1737,6 +1756,7 @@ ktrstruct(char *buf, size_t buflen)
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size_t namelen, datalen;
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int i;
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cap_rights_t rights;
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struct itimerval it;
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struct stat sb;
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struct sockaddr_storage ss;
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@ -1761,6 +1781,11 @@ ktrstruct(char *buf, size_t buflen)
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goto invalid;
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memcpy(&rights, data, datalen);
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ktrcaprights(&rights);
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} else if (strcmp(name, "itimerval") == 0) {
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if (datalen != sizeof(struct itimerval))
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goto invalid;
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memcpy(&it, data, datalen);
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ktritimerval(&it);
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} else if (strcmp(name, "stat") == 0) {
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if (datalen != sizeof(struct stat))
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goto invalid;
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