| Message ID | 20200626213937.20333-4-Filip.Bozuta@syrmia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add strace support for printing arguments for a group of selected syscalls | expand |
Le 26/06/2020 à 23:39, Filip Bozuta a écrit : > This patch implements strace argument printing functionality for following syscalls: > > * clock_getres, clock_gettime, clock_settime - clock and time functions > > int clock_getres(clockid_t clockid, struct timespec *res) > int clock_gettime(clockid_t clockid, struct timespec *tp) > int clock_settime(clockid_t clockid, const struct timespec *tp) > man page: https://man7.org/linux/man-pages/man2/clock_getres.2.html > > * gettimeofday - get time > > int gettimeofday(struct timeval *tv, struct timezone *tz) > man page: https://man7.org/linux/man-pages/man2/gettimeofday.2.html > > * getitimer, setitimer - get or set value of an interval timer > > int getitimer(int which, struct itimerval *curr_value) > int setitimer(int which, const struct itimerval *new_value, > struct itimerval *old_value) > man page: https://man7.org/linux/man-pages/man2/getitimer.2.html > > Implementation notes: > > All of the syscalls have some structue types as argument types and thus > a separate printing function was stated in file "strace.list" for each > of them. All of these functions use existing functions for their > appropriate structure types ("print_timeval()" and "print_timezone()"). > Functions "print_timespec()" and "print_itimerval()" were added in this > patch so that they can be used to print types "struct timespec" and > "struct itimerval" used by some of the syscalls. Function "print_itimerval()" > uses the existing function "print_timeval()" to print fields of the > structure "struct itimerval" that are of type "struct timeval". > Also, the existing function "print_timeval()" was changed a little so > that it prints the field names beside the values. Syscalls "clock_getres()" > and "clocK_gettime()" have the same number and types of arguments and > thus their print functions "print_clock_getres" and "print_clock_gettime" > shate a common definition in file "strace.c". > > Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> > --- > linux-user/strace.c | 186 ++++++++++++++++++++++++++++++++++++++++- > linux-user/strace.list | 16 ++-- > 2 files changed, 194 insertions(+), 8 deletions(-) > > diff --git a/linux-user/strace.c b/linux-user/strace.c > index 1fc4404310..414748d0fa 100644 > --- a/linux-user/strace.c > +++ b/linux-user/strace.c > @@ -64,7 +64,9 @@ UNUSED static void print_string(abi_long, int); > UNUSED static void print_buf(abi_long addr, abi_long len, int last); > UNUSED static void print_raw_param(const char *, abi_long, int); > UNUSED static void print_timeval(abi_ulong, int); > +UNUSED static void print_timespec(abi_ulong, int); > UNUSED static void print_timezone(abi_ulong, int); > +UNUSED static void print_itimerval(abi_ulong, int); > UNUSED static void print_number(abi_long, int); > UNUSED static void print_signal(abi_ulong, int); > UNUSED static void print_sockaddr(abi_ulong, abi_long, int); > @@ -833,6 +835,65 @@ print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret, > } > #endif > > +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) > +static void > +print_syscall_ret_clock_gettime(const struct syscallname *name, abi_long ret, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_err(ret); > + > + if (ret >= 0) { > + qemu_log(TARGET_ABI_FMT_ld, ret); > + qemu_log(" ("); > + print_timespec(arg1, 1); > + qemu_log(")"); > + } > + > + qemu_log("\n"); > +} > +#define print_syscall_ret_clock_getres print_syscall_ret_clock_gettime > +#endif > + > +#ifdef TARGET_NR_gettimeofday > +static void > +print_syscall_ret_gettimeofday(const struct syscallname *name, abi_long ret, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_err(ret); > + > + if (ret >= 0) { > + qemu_log(TARGET_ABI_FMT_ld, ret); > + qemu_log(" ("); > + print_timeval(arg0, 0); > + print_timezone(arg1, 1); > + qemu_log(")"); > + } > + > + qemu_log("\n"); > +} > +#endif > + > +#ifdef TARGET_NR_getitimer > +static void > +print_syscall_ret_getitimer(const struct syscallname *name, abi_long ret, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_err(ret); > + > + if (ret >= 0) { > + qemu_log(TARGET_ABI_FMT_ld, ret); > + qemu_log(" ("); > + print_itimerval(arg1, 1); > + qemu_log(")"); > + } > + > + qemu_log("\n"); > +} > +#endif > + > #if defined(TARGET_NR_listxattr) || defined(TARGET_NR_llistxattr) \ > || defined(TARGGET_NR_flistxattr) > static void > @@ -1371,13 +1432,34 @@ print_timeval(abi_ulong tv_addr, int last) > print_pointer(tv_addr, last); > return; > } > - qemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s", > - tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last)); > + qemu_log("{tv_sec = " TARGET_ABI_FMT_ld > + ",tv_usec = " TARGET_ABI_FMT_ld "}%s", > + tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last)); > unlock_user(tv, tv_addr, 0); > } else > qemu_log("NULL%s", get_comma(last)); > } > > +static void > +print_timespec(abi_ulong ts_addr, int last) > +{ > + if (ts_addr) { > + struct target_timespec *ts; > + > + ts = lock_user(VERIFY_READ, ts_addr, sizeof(*ts), 1); > + if (!ts) { > + print_pointer(ts_addr, last); > + return; > + } > + qemu_log("{tv_sec = " TARGET_ABI_FMT_ld > + ",tv_nsec = " TARGET_ABI_FMT_ld "}%s", > + tswapal(ts->tv_sec), tswapal(ts->tv_nsec), get_comma(last)); > + unlock_user(ts, ts_addr, 0); > + } else { > + qemu_log("NULL%s", get_comma(last)); > + } > +} > + > static void > print_timezone(abi_ulong tz_addr, int last) > { > @@ -1397,6 +1479,21 @@ print_timezone(abi_ulong tz_addr, int last) > } > } > > +static void > +print_itimerval(abi_ulong it_addr, int last) > +{ > + if (it_addr) { > + qemu_log("{it_interval="); > + print_timeval(it_addr, 0); > + qemu_log("it_value="); > + print_timeval(it_addr + > + offsetof(struct target_itimerval, it_value), 1); > + qemu_log("}%s", get_comma(last)); It would be cleaner to define a target_itimerval, but as it is already decoded like that in syscall.c I think we can take this also in strace.c > + } else { > + qemu_log("NULL%s", get_comma(last)); > + } > +} > + > #undef UNUSED > > #ifdef TARGET_NR_accept > @@ -1839,6 +1936,19 @@ print_futimesat(const struct syscallname *name, > } > #endif > > +#ifdef TARGET_NR_gettimeofday > +static void > +print_gettimeofday(const struct syscallname *name, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_prologue(name); > + print_pointer(arg0, 0); > + print_pointer(arg1, 1); > + print_syscall_epilogue(name); > +} > +#endif > + > #ifdef TARGET_NR_settimeofday > static void > print_settimeofday(const struct syscallname *name, > @@ -1852,6 +1962,78 @@ print_settimeofday(const struct syscallname *name, > } > #endif > > +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) > +static void > +print_clock_gettime(const struct syscallname *name, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_prologue(name); > + print_clockid(arg0, 0); > + print_pointer(arg1, 1); > + print_syscall_epilogue(name); > +} > +#define print_clock_getres print_clock_gettime > +#endif > + > +#ifdef TARGET_NR_clock_settime > +static void > +print_clock_settime(const struct syscallname *name, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_prologue(name); > + print_clockid(arg0, 0); > + print_timespec(arg1, 1); > + print_syscall_epilogue(name); > +} > +#endif > + > +#ifdef TARGET_NR_getitimer > +static void > +print_getitimer(const struct syscallname *name, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_prologue(name); > + switch (arg0) { > + case ITIMER_REAL: > + qemu_log("ITIMER_REAL,"); break; > + case ITIMER_VIRTUAL: > + qemu_log("ITIMER_VIRTUAL,"); break; > + case ITIMER_PROF: > + qemu_log("ITIMER_PROF,"); break; > + default: > + print_raw_param("%#x", arg1, 0); > + } Perhaps you can move the switch to a function and use it in print_getitimer() and in print_setitimer(). > + print_pointer(arg1, 1); > + print_syscall_epilogue(name); > +} > +#endif > + > +#ifdef TARGET_NR_setitimer > +static void > +print_setitimer(const struct syscallname *name, > + abi_long arg0, abi_long arg1, abi_long arg2, > + abi_long arg3, abi_long arg4, abi_long arg5) > +{ > + print_syscall_prologue(name); > + switch (arg0) { > + case ITIMER_REAL: > + qemu_log("ITIMER_REAL,"); break; > + case ITIMER_VIRTUAL: > + qemu_log("ITIMER_VIRTUAL,"); break; > + case ITIMER_PROF: > + qemu_log("ITIMER_PROF,"); break; > + default: > + print_raw_param("%#x", arg1, 0); > + } > + print_itimerval(arg1, 0); > + print_itimerval(arg2, 1); arg2 is old value and should be displaye in a ret function. > + print_syscall_epilogue(name); > +} > +#endif > + > #ifdef TARGET_NR_link > static void > print_link(const struct syscallname *name, > diff --git a/linux-user/strace.list b/linux-user/strace.list > index 822b6be49c..6b5cef149f 100644 > --- a/linux-user/strace.list > +++ b/linux-user/strace.list > @@ -83,16 +83,18 @@ > { TARGET_NR_clock_adjtime, "clock_adjtime" , NULL, print_clock_adjtime, NULL }, > #endif > #ifdef TARGET_NR_clock_getres > -{ TARGET_NR_clock_getres, "clock_getres" , NULL, NULL, NULL }, > +{ TARGET_NR_clock_getres, "clock_getres" , NULL, print_clock_getres, > + print_syscall_ret_clock_getres }, > #endif > #ifdef TARGET_NR_clock_gettime > -{ TARGET_NR_clock_gettime, "clock_gettime" , NULL, NULL, NULL }, > +{ TARGET_NR_clock_gettime, "clock_gettime" , NULL, print_clock_gettime, > + print_syscall_ret_clock_gettime }, > #endif > #ifdef TARGET_NR_clock_nanosleep > { TARGET_NR_clock_nanosleep, "clock_nanosleep" , NULL, NULL, NULL }, > #endif > #ifdef TARGET_NR_clock_settime > -{ TARGET_NR_clock_settime, "clock_settime" , NULL, NULL, NULL }, > +{ TARGET_NR_clock_settime, "clock_settime" , NULL, print_clock_settime, NULL }, > #endif > #ifdef TARGET_NR_clone > { TARGET_NR_clone, "clone" , NULL, print_clone, NULL }, > @@ -315,7 +317,8 @@ > { TARGET_NR_gethostname, "gethostname" , NULL, NULL, NULL }, > #endif > #ifdef TARGET_NR_getitimer > -{ TARGET_NR_getitimer, "getitimer" , NULL, NULL, NULL }, > +{ TARGET_NR_getitimer, "getitimer" , NULL, print_getitimer, > + print_syscall_ret_getitimer }, > #endif > #ifdef TARGET_NR_get_kernel_syms > { TARGET_NR_get_kernel_syms, "get_kernel_syms" , NULL, NULL, NULL }, > @@ -388,7 +391,8 @@ > { TARGET_NR_gettid, "gettid" , "%s()", NULL, NULL }, > #endif > #ifdef TARGET_NR_gettimeofday > -{ TARGET_NR_gettimeofday, "gettimeofday" , NULL, NULL, NULL }, > +{ TARGET_NR_gettimeofday, "gettimeofday" , NULL, print_gettimeofday, > + print_syscall_ret_gettimeofday }, > #endif > #ifdef TARGET_NR_getuid > { TARGET_NR_getuid, "getuid" , "%s()", NULL, NULL }, > @@ -1290,7 +1294,7 @@ > { TARGET_NR_sethostname, "sethostname" , NULL, NULL, NULL }, > #endif > #ifdef TARGET_NR_setitimer > -{ TARGET_NR_setitimer, "setitimer" , NULL, NULL, NULL }, > +{ TARGET_NR_setitimer, "setitimer" , NULL, print_setitimer, NULL }, > #endif > #ifdef TARGET_NR_set_mempolicy > { TARGET_NR_set_mempolicy, "set_mempolicy" , NULL, NULL, NULL }, > Thanks, Laurent
diff --git a/linux-user/strace.c b/linux-user/strace.c index 1fc4404310..414748d0fa 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -64,7 +64,9 @@ UNUSED static void print_string(abi_long, int); UNUSED static void print_buf(abi_long addr, abi_long len, int last); UNUSED static void print_raw_param(const char *, abi_long, int); UNUSED static void print_timeval(abi_ulong, int); +UNUSED static void print_timespec(abi_ulong, int); UNUSED static void print_timezone(abi_ulong, int); +UNUSED static void print_itimerval(abi_ulong, int); UNUSED static void print_number(abi_long, int); UNUSED static void print_signal(abi_ulong, int); UNUSED static void print_sockaddr(abi_ulong, abi_long, int); @@ -833,6 +835,65 @@ print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret, } #endif +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) +static void +print_syscall_ret_clock_gettime(const struct syscallname *name, abi_long ret, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_err(ret); + + if (ret >= 0) { + qemu_log(TARGET_ABI_FMT_ld, ret); + qemu_log(" ("); + print_timespec(arg1, 1); + qemu_log(")"); + } + + qemu_log("\n"); +} +#define print_syscall_ret_clock_getres print_syscall_ret_clock_gettime +#endif + +#ifdef TARGET_NR_gettimeofday +static void +print_syscall_ret_gettimeofday(const struct syscallname *name, abi_long ret, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_err(ret); + + if (ret >= 0) { + qemu_log(TARGET_ABI_FMT_ld, ret); + qemu_log(" ("); + print_timeval(arg0, 0); + print_timezone(arg1, 1); + qemu_log(")"); + } + + qemu_log("\n"); +} +#endif + +#ifdef TARGET_NR_getitimer +static void +print_syscall_ret_getitimer(const struct syscallname *name, abi_long ret, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_err(ret); + + if (ret >= 0) { + qemu_log(TARGET_ABI_FMT_ld, ret); + qemu_log(" ("); + print_itimerval(arg1, 1); + qemu_log(")"); + } + + qemu_log("\n"); +} +#endif + #if defined(TARGET_NR_listxattr) || defined(TARGET_NR_llistxattr) \ || defined(TARGGET_NR_flistxattr) static void @@ -1371,13 +1432,34 @@ print_timeval(abi_ulong tv_addr, int last) print_pointer(tv_addr, last); return; } - qemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s", - tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last)); + qemu_log("{tv_sec = " TARGET_ABI_FMT_ld + ",tv_usec = " TARGET_ABI_FMT_ld "}%s", + tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last)); unlock_user(tv, tv_addr, 0); } else qemu_log("NULL%s", get_comma(last)); } +static void +print_timespec(abi_ulong ts_addr, int last) +{ + if (ts_addr) { + struct target_timespec *ts; + + ts = lock_user(VERIFY_READ, ts_addr, sizeof(*ts), 1); + if (!ts) { + print_pointer(ts_addr, last); + return; + } + qemu_log("{tv_sec = " TARGET_ABI_FMT_ld + ",tv_nsec = " TARGET_ABI_FMT_ld "}%s", + tswapal(ts->tv_sec), tswapal(ts->tv_nsec), get_comma(last)); + unlock_user(ts, ts_addr, 0); + } else { + qemu_log("NULL%s", get_comma(last)); + } +} + static void print_timezone(abi_ulong tz_addr, int last) { @@ -1397,6 +1479,21 @@ print_timezone(abi_ulong tz_addr, int last) } } +static void +print_itimerval(abi_ulong it_addr, int last) +{ + if (it_addr) { + qemu_log("{it_interval="); + print_timeval(it_addr, 0); + qemu_log("it_value="); + print_timeval(it_addr + + offsetof(struct target_itimerval, it_value), 1); + qemu_log("}%s", get_comma(last)); + } else { + qemu_log("NULL%s", get_comma(last)); + } +} + #undef UNUSED #ifdef TARGET_NR_accept @@ -1839,6 +1936,19 @@ print_futimesat(const struct syscallname *name, } #endif +#ifdef TARGET_NR_gettimeofday +static void +print_gettimeofday(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_pointer(arg0, 0); + print_pointer(arg1, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_settimeofday static void print_settimeofday(const struct syscallname *name, @@ -1852,6 +1962,78 @@ print_settimeofday(const struct syscallname *name, } #endif +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) +static void +print_clock_gettime(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_clockid(arg0, 0); + print_pointer(arg1, 1); + print_syscall_epilogue(name); +} +#define print_clock_getres print_clock_gettime +#endif + +#ifdef TARGET_NR_clock_settime +static void +print_clock_settime(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_clockid(arg0, 0); + print_timespec(arg1, 1); + print_syscall_epilogue(name); +} +#endif + +#ifdef TARGET_NR_getitimer +static void +print_getitimer(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + switch (arg0) { + case ITIMER_REAL: + qemu_log("ITIMER_REAL,"); break; + case ITIMER_VIRTUAL: + qemu_log("ITIMER_VIRTUAL,"); break; + case ITIMER_PROF: + qemu_log("ITIMER_PROF,"); break; + default: + print_raw_param("%#x", arg1, 0); + } + print_pointer(arg1, 1); + print_syscall_epilogue(name); +} +#endif + +#ifdef TARGET_NR_setitimer +static void +print_setitimer(const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + switch (arg0) { + case ITIMER_REAL: + qemu_log("ITIMER_REAL,"); break; + case ITIMER_VIRTUAL: + qemu_log("ITIMER_VIRTUAL,"); break; + case ITIMER_PROF: + qemu_log("ITIMER_PROF,"); break; + default: + print_raw_param("%#x", arg1, 0); + } + print_itimerval(arg1, 0); + print_itimerval(arg2, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_link static void print_link(const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index 822b6be49c..6b5cef149f 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -83,16 +83,18 @@ { TARGET_NR_clock_adjtime, "clock_adjtime" , NULL, print_clock_adjtime, NULL }, #endif #ifdef TARGET_NR_clock_getres -{ TARGET_NR_clock_getres, "clock_getres" , NULL, NULL, NULL }, +{ TARGET_NR_clock_getres, "clock_getres" , NULL, print_clock_getres, + print_syscall_ret_clock_getres }, #endif #ifdef TARGET_NR_clock_gettime -{ TARGET_NR_clock_gettime, "clock_gettime" , NULL, NULL, NULL }, +{ TARGET_NR_clock_gettime, "clock_gettime" , NULL, print_clock_gettime, + print_syscall_ret_clock_gettime }, #endif #ifdef TARGET_NR_clock_nanosleep { TARGET_NR_clock_nanosleep, "clock_nanosleep" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_clock_settime -{ TARGET_NR_clock_settime, "clock_settime" , NULL, NULL, NULL }, +{ TARGET_NR_clock_settime, "clock_settime" , NULL, print_clock_settime, NULL }, #endif #ifdef TARGET_NR_clone { TARGET_NR_clone, "clone" , NULL, print_clone, NULL }, @@ -315,7 +317,8 @@ { TARGET_NR_gethostname, "gethostname" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_getitimer -{ TARGET_NR_getitimer, "getitimer" , NULL, NULL, NULL }, +{ TARGET_NR_getitimer, "getitimer" , NULL, print_getitimer, + print_syscall_ret_getitimer }, #endif #ifdef TARGET_NR_get_kernel_syms { TARGET_NR_get_kernel_syms, "get_kernel_syms" , NULL, NULL, NULL }, @@ -388,7 +391,8 @@ { TARGET_NR_gettid, "gettid" , "%s()", NULL, NULL }, #endif #ifdef TARGET_NR_gettimeofday -{ TARGET_NR_gettimeofday, "gettimeofday" , NULL, NULL, NULL }, +{ TARGET_NR_gettimeofday, "gettimeofday" , NULL, print_gettimeofday, + print_syscall_ret_gettimeofday }, #endif #ifdef TARGET_NR_getuid { TARGET_NR_getuid, "getuid" , "%s()", NULL, NULL }, @@ -1290,7 +1294,7 @@ { TARGET_NR_sethostname, "sethostname" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_setitimer -{ TARGET_NR_setitimer, "setitimer" , NULL, NULL, NULL }, +{ TARGET_NR_setitimer, "setitimer" , NULL, print_setitimer, NULL }, #endif #ifdef TARGET_NR_set_mempolicy { TARGET_NR_set_mempolicy, "set_mempolicy" , NULL, NULL, NULL },
This patch implements strace argument printing functionality for following syscalls: * clock_getres, clock_gettime, clock_settime - clock and time functions int clock_getres(clockid_t clockid, struct timespec *res) int clock_gettime(clockid_t clockid, struct timespec *tp) int clock_settime(clockid_t clockid, const struct timespec *tp) man page: https://man7.org/linux/man-pages/man2/clock_getres.2.html * gettimeofday - get time int gettimeofday(struct timeval *tv, struct timezone *tz) man page: https://man7.org/linux/man-pages/man2/gettimeofday.2.html * getitimer, setitimer - get or set value of an interval timer int getitimer(int which, struct itimerval *curr_value) int setitimer(int which, const struct itimerval *new_value, struct itimerval *old_value) man page: https://man7.org/linux/man-pages/man2/getitimer.2.html Implementation notes: All of the syscalls have some structue types as argument types and thus a separate printing function was stated in file "strace.list" for each of them. All of these functions use existing functions for their appropriate structure types ("print_timeval()" and "print_timezone()"). Functions "print_timespec()" and "print_itimerval()" were added in this patch so that they can be used to print types "struct timespec" and "struct itimerval" used by some of the syscalls. Function "print_itimerval()" uses the existing function "print_timeval()" to print fields of the structure "struct itimerval" that are of type "struct timeval". Also, the existing function "print_timeval()" was changed a little so that it prints the field names beside the values. Syscalls "clock_getres()" and "clocK_gettime()" have the same number and types of arguments and thus their print functions "print_clock_getres" and "print_clock_gettime" shate a common definition in file "strace.c". Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> --- linux-user/strace.c | 186 ++++++++++++++++++++++++++++++++++++++++- linux-user/strace.list | 16 ++-- 2 files changed, 194 insertions(+), 8 deletions(-)