diff options
Diffstat (limited to 'linux-user/strace.c')
| -rw-r--r-- | linux-user/strace.c | 318 |
1 files changed, 242 insertions, 76 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index 7d882526da..37bc96df9b 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -17,6 +17,8 @@ #include "qemu.h" #include "user-internals.h" #include "strace.h" +#include "signal-common.h" +#include "target_mman.h" struct syscallname { int nr; @@ -81,6 +83,7 @@ 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_timespec64(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); @@ -141,30 +144,21 @@ if( cmd == val ) { \ qemu_log("%d", cmd); } +static const char * const target_signal_name[] = { +#define MAKE_SIG_ENTRY(sig) [TARGET_##sig] = #sig, + MAKE_SIGNAL_LIST +#undef MAKE_SIG_ENTRY +}; + static void print_signal(abi_ulong arg, int last) { const char *signal_name = NULL; - switch(arg) { - case TARGET_SIGHUP: signal_name = "SIGHUP"; break; - case TARGET_SIGINT: signal_name = "SIGINT"; break; - case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break; - case TARGET_SIGILL: signal_name = "SIGILL"; break; - case TARGET_SIGABRT: signal_name = "SIGABRT"; break; - case TARGET_SIGFPE: signal_name = "SIGFPE"; break; - case TARGET_SIGKILL: signal_name = "SIGKILL"; break; - case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break; - case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break; - case TARGET_SIGALRM: signal_name = "SIGALRM"; break; - case TARGET_SIGTERM: signal_name = "SIGTERM"; break; - case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break; - case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break; - case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break; - case TARGET_SIGCONT: signal_name = "SIGCONT"; break; - case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break; - case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break; - case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break; + + if (arg < ARRAY_SIZE(target_signal_name)) { + signal_name = target_signal_name[arg]; } + if (signal_name == NULL) { print_raw_param("%ld", arg, last); return; @@ -803,6 +797,24 @@ print_syscall_ret_clock_gettime(CPUArchState *cpu_env, const struct syscallname #define print_syscall_ret_clock_getres print_syscall_ret_clock_gettime #endif +#if defined(TARGET_NR_clock_gettime64) +static void +print_syscall_ret_clock_gettime64(CPUArchState *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) +{ + if (!print_syscall_err(ret)) { + qemu_log(TARGET_ABI_FMT_ld, ret); + qemu_log(" ("); + print_timespec64(arg1, 1); + qemu_log(")"); + } + + qemu_log("\n"); +} +#endif + #ifdef TARGET_NR_gettimeofday static void print_syscall_ret_gettimeofday(CPUArchState *cpu_env, const struct syscallname *name, @@ -1494,6 +1506,11 @@ print_file_mode(abi_long mode, int last) const char *sep = ""; const struct flags *m; + if (mode == 0) { + qemu_log("000%s", get_comma(last)); + return; + } + for (m = &mode_flags[0]; m->f_string != NULL; m++) { if ((m->f_value & mode) == m->f_value) { qemu_log("%s%s", m->f_string, sep); @@ -1661,6 +1678,27 @@ print_timespec(abi_ulong ts_addr, int last) } static void +print_timespec64(abi_ulong ts_addr, int last) +{ + if (ts_addr) { + struct target__kernel_timespec *ts; + + ts = lock_user(VERIFY_READ, ts_addr, sizeof(*ts), 1); + if (!ts) { + print_pointer(ts_addr, last); + return; + } + qemu_log("{tv_sec = %lld" + ",tv_nsec = %lld}%s", + (long long)tswap64(ts->tv_sec), (long long)tswap64(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) { if (tz_addr) { @@ -2275,6 +2313,19 @@ print_clock_gettime(CPUArchState *cpu_env, const struct syscallname *name, #define print_clock_getres print_clock_gettime #endif +#if defined(TARGET_NR_clock_gettime64) +static void +print_clock_gettime64(CPUArchState *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_enums(clockids, arg0, 0); + print_pointer(arg1, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_clock_settime static void print_clock_settime(CPUArchState *cpu_env, const struct syscallname *name, @@ -2969,6 +3020,46 @@ print_stat(CPUArchState *cpu_env, const struct syscallname *name, #define print_lstat64 print_stat #endif +#if defined(TARGET_NR_madvise) +static struct enums madvise_advice[] = { + ENUM_TARGET(MADV_NORMAL), + ENUM_TARGET(MADV_RANDOM), + ENUM_TARGET(MADV_SEQUENTIAL), + ENUM_TARGET(MADV_WILLNEED), + ENUM_TARGET(MADV_DONTNEED), + ENUM_TARGET(MADV_FREE), + ENUM_TARGET(MADV_REMOVE), + ENUM_TARGET(MADV_DONTFORK), + ENUM_TARGET(MADV_DOFORK), + ENUM_TARGET(MADV_MERGEABLE), + ENUM_TARGET(MADV_UNMERGEABLE), + ENUM_TARGET(MADV_HUGEPAGE), + ENUM_TARGET(MADV_NOHUGEPAGE), + ENUM_TARGET(MADV_DONTDUMP), + ENUM_TARGET(MADV_DODUMP), + ENUM_TARGET(MADV_WIPEONFORK), + ENUM_TARGET(MADV_KEEPONFORK), + ENUM_TARGET(MADV_COLD), + ENUM_TARGET(MADV_PAGEOUT), + ENUM_TARGET(MADV_POPULATE_READ), + ENUM_TARGET(MADV_POPULATE_WRITE), + ENUM_TARGET(MADV_DONTNEED_LOCKED), + ENUM_END, +}; + +static void +print_madvise(CPUArchState *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_raw_param("%d", arg1, 0); + print_enums(madvise_advice, arg2, 1); + print_syscall_epilogue(name); +} +#endif + #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) static void print_fstat(CPUArchState *cpu_env, const struct syscallname *name, @@ -3272,6 +3363,34 @@ print_openat(CPUArchState *cpu_env, const struct syscallname *name, } #endif +#ifdef TARGET_NR_pidfd_send_signal +static void +print_pidfd_send_signal(CPUArchState *cpu_env, const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + void *p; + target_siginfo_t uinfo; + + print_syscall_prologue(name); + print_raw_param("%d", arg0, 0); + print_signal(arg1, 0); + + p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1); + if (p) { + get_target_siginfo(&uinfo, p); + print_siginfo(&uinfo); + + unlock_user(p, arg2, 0); + } else { + print_pointer(arg2, 1); + } + + print_raw_param("%u", arg3, 0); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_mq_unlink static void print_mq_unlink(CPUArchState *cpu_env, const struct syscallname *name, @@ -3489,6 +3608,21 @@ print_unshare(CPUArchState *cpu_env, const struct syscallname *name, } #endif +#ifdef TARGET_NR_clock_nanosleep +static void +print_clock_nanosleep(CPUArchState *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_enums(clockids, arg0, 0); + print_raw_param("%d", arg1, 0); + print_timespec(arg2, 0); + print_timespec(arg3, 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_utime static void print_utime(CPUArchState *cpu_env, const struct syscallname *name, @@ -3576,44 +3710,37 @@ print_munmap(CPUArchState *cpu_env, const struct syscallname *name, #endif #ifdef TARGET_NR_futex -static void print_futex_op(abi_long tflag, int last) -{ -#define print_op(val) \ -if( cmd == val ) { \ - qemu_log(#val); \ - return; \ -} - - int cmd = (int)tflag; -#ifdef FUTEX_PRIVATE_FLAG - if (cmd & FUTEX_PRIVATE_FLAG) { - qemu_log("FUTEX_PRIVATE_FLAG|"); - cmd &= ~FUTEX_PRIVATE_FLAG; - } -#endif -#ifdef FUTEX_CLOCK_REALTIME - if (cmd & FUTEX_CLOCK_REALTIME) { - qemu_log("FUTEX_CLOCK_REALTIME|"); - cmd &= ~FUTEX_CLOCK_REALTIME; +static void print_futex_op(int cmd, int last) +{ + static const char * const futex_names[] = { +#define NAME(X) [X] = #X + NAME(FUTEX_WAIT), + NAME(FUTEX_WAKE), + NAME(FUTEX_FD), + NAME(FUTEX_REQUEUE), + NAME(FUTEX_CMP_REQUEUE), + NAME(FUTEX_WAKE_OP), + NAME(FUTEX_LOCK_PI), + NAME(FUTEX_UNLOCK_PI), + NAME(FUTEX_TRYLOCK_PI), + NAME(FUTEX_WAIT_BITSET), + NAME(FUTEX_WAKE_BITSET), + NAME(FUTEX_WAIT_REQUEUE_PI), + NAME(FUTEX_CMP_REQUEUE_PI), + NAME(FUTEX_LOCK_PI2), +#undef NAME + }; + + unsigned base_cmd = cmd & FUTEX_CMD_MASK; + + if (base_cmd < ARRAY_SIZE(futex_names)) { + qemu_log("%s%s%s", + (cmd & FUTEX_PRIVATE_FLAG ? "FUTEX_PRIVATE_FLAG|" : ""), + (cmd & FUTEX_CLOCK_REALTIME ? "FUTEX_CLOCK_REALTIME|" : ""), + futex_names[base_cmd]); + } else { + qemu_log("0x%x", cmd); } -#endif - print_op(FUTEX_WAIT) - print_op(FUTEX_WAKE) - print_op(FUTEX_FD) - print_op(FUTEX_REQUEUE) - print_op(FUTEX_CMP_REQUEUE) - print_op(FUTEX_WAKE_OP) - print_op(FUTEX_LOCK_PI) - print_op(FUTEX_UNLOCK_PI) - print_op(FUTEX_TRYLOCK_PI) -#ifdef FUTEX_WAIT_BITSET - print_op(FUTEX_WAIT_BITSET) -#endif -#ifdef FUTEX_WAKE_BITSET - print_op(FUTEX_WAKE_BITSET) -#endif - /* unknown values */ - qemu_log("%d", cmd); } static void @@ -3621,11 +3748,23 @@ print_futex(CPUArchState *cpu_env, const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { + abi_long op = arg1 & FUTEX_CMD_MASK; print_syscall_prologue(name); print_pointer(arg0, 0); print_futex_op(arg1, 0); print_raw_param(",%d", arg2, 0); - print_pointer(arg3, 0); /* struct timespec */ + switch (op) { + case FUTEX_WAIT: + case FUTEX_WAIT_BITSET: + case FUTEX_LOCK_PI: + case FUTEX_LOCK_PI2: + case FUTEX_WAIT_REQUEUE_PI: + print_timespec(arg3, 0); + break; + default: + print_pointer(arg3, 0); + break; + } print_pointer(arg4, 0); print_raw_param("%d", arg4, 1); print_syscall_epilogue(name); @@ -3780,26 +3919,37 @@ print_syscall(CPUArchState *cpu_env, int num, abi_long arg4, abi_long arg5, abi_long arg6) { int i; - const char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")"; + FILE *f; + const char *format = "%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," + TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," + TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")"; - qemu_log("%d ", getpid()); + f = qemu_log_trylock(); + if (!f) { + return; + } + fprintf(f, "%d ", getpid()); - for(i=0;i<nsyscalls;i++) - if( scnames[i].nr == num ) { - if( scnames[i].call != NULL ) { - scnames[i].call( - cpu_env, &scnames[i], arg1, arg2, arg3, arg4, arg5, arg6); + for (i = 0; i < nsyscalls; i++) { + if (scnames[i].nr == num) { + if (scnames[i].call != NULL) { + scnames[i].call(cpu_env, &scnames[i], arg1, arg2, arg3, + arg4, arg5, arg6); } else { /* XXX: this format system is broken because it uses host types and host pointers for strings */ - if( scnames[i].format != NULL ) + if (scnames[i].format != NULL) { format = scnames[i].format; - qemu_log(format, - scnames[i].name, arg1, arg2, arg3, arg4, arg5, arg6); + } + fprintf(f, format, scnames[i].name, arg1, arg2, + arg3, arg4, arg5, arg6); } + qemu_log_unlock(f); return; } - qemu_log("Unknown syscall %d\n", num); + } + fprintf(f, "Unknown syscall %d\n", num); + qemu_log_unlock(f); } @@ -3809,21 +3959,29 @@ print_syscall_ret(CPUArchState *cpu_env, int num, abi_long ret, abi_long arg4, abi_long arg5, abi_long arg6) { int i; + FILE *f; - for(i=0;i<nsyscalls;i++) - if( scnames[i].nr == num ) { - if( scnames[i].result != NULL ) { + f = qemu_log_trylock(); + if (!f) { + return; + } + + for (i = 0; i < nsyscalls; i++) { + if (scnames[i].nr == num) { + if (scnames[i].result != NULL) { scnames[i].result(cpu_env, &scnames[i], ret, arg1, arg2, arg3, arg4, arg5, arg6); } else { if (!print_syscall_err(ret)) { - qemu_log(TARGET_ABI_FMT_ld, ret); + fprintf(f, TARGET_ABI_FMT_ld, ret); } - qemu_log("\n"); + fprintf(f, "\n"); } break; } + } + qemu_log_unlock(f); } void print_taken_signal(int target_signum, const target_siginfo_t *tinfo) @@ -3831,9 +3989,17 @@ void print_taken_signal(int target_signum, const target_siginfo_t *tinfo) /* Print the strace output for a signal being taken: * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} --- */ - qemu_log("--- "); + FILE *f; + + f = qemu_log_trylock(); + if (!f) { + return; + } + + fprintf(f, "--- "); print_signal(target_signum, 1); - qemu_log(" "); + fprintf(f, " "); print_siginfo(tinfo); - qemu_log(" ---\n"); + fprintf(f, " ---\n"); + qemu_log_unlock(f); } |