https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273607
Bug ID: 273607
Summary: ktrace(1) doesn't log some system calls
Product: Base System
Version: 13.2-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: y...@freebsd.org
I run this code that calls the open(2) system function, and clock_gettime(2)
system function:
#include <time.h>
#include <fcntl.h>
#include <stdio.h>
int main() {
printf("--before--\n");
open(NULL, 0);
struct timespec tp;
clock_gettime(CLOCK_SECOND, &tp);
printf("--after--\n");
return 0;
}
When this program is run under ktrace(1) (with -di flags), only openat(2) call
appears in the dump, and clock_gettime(2) doesn't appear there:
83299 a.out CALL write(0x1,0x821ac4000,0xb)
83299 a.out GIO fd 1 wrote 11 bytes
"--before--
"
83299 a.out RET write 11/0xb
83299 a.out CALL openat(AT_FDCWD,0,0<O_RDONLY>)
83299 a.out RET openat -1 errno 14 Bad address
83299 a.out CALL write(0x1,0x821ac4000,0xa)
83299 a.out GIO fd 1 wrote 10 bytes
"--after--
"
83299 a.out RET write 10/0xa
83299 a.out CALL exit(0)
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