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envelope-from=Filip.Bozuta@syrmia.com; helo=EUR02-VE1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/13 05:51:48 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: 10 X-Spam_score: 1.0 X-Spam_bar: + X-Spam_report: (1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-1, RCVD_IN_SBL_CSS=3.335, RCVD_IN_SORBS_WEB=1.5, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Filip Bozuta Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" 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". Function "print_itimer_type()" was added to print the type of the interval typer which is the firt argument of "getitimer()" and "setitimer()". 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 --- linux-user/strace.c | 208 ++++++++++++++++++++++++++++++++++++++++- linux-user/strace.list | 17 ++-- 2 files changed, 217 insertions(+), 8 deletions(-) diff --git a/linux-user/strace.c b/linux-user/strace.c index 0d95cc6089..9bdee3b495 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -64,7 +64,10 @@ 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_itimer_type(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); @@ -829,6 +832,89 @@ print_syscall_ret_adjtimex(void *cpu_env, const struct syscallname *name, } #endif +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) +static void +print_syscall_ret_clock_gettime(void *cpu_env, 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(void *cpu_env, 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(void *cpu_env, 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 + + +#ifdef TARGET_NR_getitimer +static void +print_syscall_ret_setitimer(void *cpu_env, 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(" (old_value = "); + print_itimerval(arg2, 1); + qemu_log(")"); + } + + qemu_log("\n"); +} +#endif + #if defined(TARGET_NR_listxattr) || defined(TARGET_NR_llistxattr) \ || defined(TARGGET_NR_flistxattr) static void @@ -1408,13 +1494,34 @@ 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) { @@ -1434,6 +1541,36 @@ print_timezone(abi_ulong tz_addr, int last) } } +static void +print_itimer_type(abi_ulong itimer, int last) +{ + switch (itimer) { + 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", itimer, 0); + } + qemu_log("%s", get_comma(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 + sizeof(struct target_timeval), 1); + qemu_log("}%s", get_comma(last)); + } else { + qemu_log("NULL%s", get_comma(last)); + } +} + #undef UNUSED #ifdef TARGET_NR_accept @@ -1876,6 +2013,19 @@ print_futimesat(void *cpu_env, const struct syscallname *name, } #endif +#ifdef TARGET_NR_gettimeofday +static void +print_gettimeofday(void *cpu_env, 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(void *cpu_env, const struct syscallname *name, @@ -1889,6 +2039,60 @@ print_settimeofday(void *cpu_env, const struct syscallname *name, } #endif +#if defined(TARGET_NR_clock_gettime) || defined(TARGET_NR_clock_getres) +static void +print_clock_gettime(void *cpu_env, 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(void *cpu_env, 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(void *cpu_env, 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_itimer_type(arg0, 0); + print_pointer(arg1, 1); + print_syscall_epilogue(name); +} +#endif + +#ifdef TARGET_NR_setitimer +static void +print_setitimer(void *cpu_env, 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_itimer_type(arg0, 0); + print_itimerval(arg1, 0); + print_pointer(arg2, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_link static void print_link(void *cpu_env, const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index d0ea7f3464..084048ab96 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 }, @@ -1291,7 +1295,8 @@ { 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, + print_syscall_ret_setitimer }, #endif #ifdef TARGET_NR_set_mempolicy { TARGET_NR_set_mempolicy, "set_mempolicy" , NULL, NULL, NULL },