/* * Copyright (c) 1991, 1992 Paul Kranenburg * Copyright (c) 1993 Branko Lankester * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #ifdef HAVE_STDBOOL_H # include #endif #include #include #include #ifdef STDC_HEADERS # include #endif #include #include #include /* Open-coding isprint(ch) et al proved more efficient than calling * generalized libc interface. We don't *want* to do non-ASCII anyway. */ /* #include */ #include #include #include #include #include #include "mpers_type.h" #ifndef HAVE_STRERROR const char *strerror(int); #endif #ifndef HAVE_STPCPY /* Some libc have stpcpy, some don't. Sigh... * Roll our private implementation... */ #undef stpcpy #define stpcpy strace_stpcpy extern char *stpcpy(char *dst, const char *src); #endif #if defined __GNUC__ && defined __GNUC_MINOR__ # define GNUC_PREREQ(maj, min) \ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) #else # define __attribute__(x) /* empty */ # define GNUC_PREREQ(maj, min) 0 #endif #if GNUC_PREREQ(2, 5) # define ATTRIBUTE_NORETURN __attribute__((__noreturn__)) #else # define ATTRIBUTE_NORETURN /* empty */ #endif #if GNUC_PREREQ(2, 7) # define ATTRIBUTE_FORMAT(args) __attribute__((__format__ args)) # define ATTRIBUTE_ALIGNED(arg) __attribute__((__aligned__(arg))) # define ATTRIBUTE_PACKED __attribute__((__packed__)) #else # define ATTRIBUTE_FORMAT(args) /* empty */ # define ATTRIBUTE_ALIGNED(arg) /* empty */ # define ATTRIBUTE_PACKED /* empty */ #endif #if GNUC_PREREQ(3, 0) # define ATTRIBUTE_MALLOC __attribute__((__malloc__)) #else # define ATTRIBUTE_MALLOC /* empty */ #endif #if GNUC_PREREQ(3, 1) # define ATTRIBUTE_NOINLINE __attribute__((__noinline__)) #else # define ATTRIBUTE_NOINLINE /* empty */ #endif #if GNUC_PREREQ(4, 3) # define ATTRIBUTE_ALLOC_SIZE(args) __attribute__((__alloc_size__ args)) #else # define ATTRIBUTE_ALLOC_SIZE(args) /* empty */ #endif #ifndef offsetof # define offsetof(type, member) \ (((char *) &(((type *) NULL)->member)) - ((char *) (type *) NULL)) #endif #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) /* macros */ #ifndef MAX # define MAX(a, b) (((a) > (b)) ? (a) : (b)) #endif #ifndef MIN # define MIN(a, b) (((a) < (b)) ? (a) : (b)) #endif #define CLAMP(val, min, max) MIN(MAX(min, val), max) /* Glibc has an efficient macro for sigemptyset * (it just does one or two assignments of 0 to internal vector of longs). */ #if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset) # define sigemptyset __sigemptyset #endif /* Configuration section */ #ifndef DEFAULT_STRLEN /* default maximum # of bytes printed in `printstr', change with -s switch */ # define DEFAULT_STRLEN 32 #endif #ifndef DEFAULT_ACOLUMN # define DEFAULT_ACOLUMN 40 /* default alignment column for results */ #endif /* * Maximum number of args to a syscall. * * Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS! * linux//syscallent*.h: * all have nargs <= 6 except mips o32 which has nargs <= 7. */ #ifndef MAX_ARGS # ifdef LINUX_MIPSO32 # define MAX_ARGS 7 # else # define MAX_ARGS 6 # endif #endif /* default sorting method for call profiling */ #ifndef DEFAULT_SORTBY # define DEFAULT_SORTBY "time" #endif /* * Experimental code using PTRACE_SEIZE can be enabled here. * This needs Linux kernel 3.4.x or later to work. */ #define USE_SEIZE 1 /* To force NOMMU build, set to 1 */ #define NOMMU_SYSTEM 0 /* * Set to 1 to use speed-optimized vfprintf implementation. * It results in strace using about 5% less CPU in user space * (compared to glibc version). * But strace spends a lot of time in kernel space, * so overall it does not appear to be a significant win. * Thus disabled by default. */ #define USE_CUSTOM_PRINTF 0 #ifndef ERESTARTSYS # define ERESTARTSYS 512 #endif #ifndef ERESTARTNOINTR # define ERESTARTNOINTR 513 #endif #ifndef ERESTARTNOHAND # define ERESTARTNOHAND 514 #endif #ifndef ERESTART_RESTARTBLOCK # define ERESTART_RESTARTBLOCK 516 #endif #if defined(SPARC) || defined(SPARC64) # define PERSONALITY0_WORDSIZE 4 # if defined(SPARC64) # define SUPPORTED_PERSONALITIES 2 # define PERSONALITY1_WORDSIZE 8 # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif # endif #endif #ifdef X86_64 # define SUPPORTED_PERSONALITIES 3 # define PERSONALITY0_WORDSIZE 8 # define PERSONALITY1_WORDSIZE 4 # define PERSONALITY2_WORDSIZE 4 # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif # ifdef HAVE_MX32_MPERS # define PERSONALITY2_INCLUDE_FUNCS "mx32_funcs.h" # define PERSONALITY2_INCLUDE_PRINTERS_DECLS "mx32_printer_decls.h" # define PERSONALITY2_INCLUDE_PRINTERS_DEFS "mx32_printer_defs.h" # endif #endif #ifdef X32 # define SUPPORTED_PERSONALITIES 2 # define PERSONALITY0_WORDSIZE 4 # define PERSONALITY1_WORDSIZE 4 # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif #endif #ifdef ARM /* one personality */ #endif #ifdef AARCH64 /* The existing ARM personality, then AArch64 */ # define SUPPORTED_PERSONALITIES 2 # define PERSONALITY0_WORDSIZE 8 # define PERSONALITY1_WORDSIZE 4 # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif #endif #ifdef POWERPC64 # define SUPPORTED_PERSONALITIES 2 # define PERSONALITY0_WORDSIZE 8 # define PERSONALITY1_WORDSIZE 4 # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif #endif #ifdef TILE # define SUPPORTED_PERSONALITIES 2 # define PERSONALITY0_WORDSIZE 8 # define PERSONALITY1_WORDSIZE 4 # ifdef __tilepro__ # define DEFAULT_PERSONALITY 1 # endif # ifdef HAVE_M32_MPERS # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h" # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h" # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h" # endif #endif #ifndef SUPPORTED_PERSONALITIES # define SUPPORTED_PERSONALITIES 1 #endif #ifndef DEFAULT_PERSONALITY # define DEFAULT_PERSONALITY 0 #endif #ifndef PERSONALITY0_WORDSIZE # define PERSONALITY0_WORDSIZE SIZEOF_LONG #endif #ifndef PERSONALITY0_INCLUDE_PRINTERS_DECLS # define PERSONALITY0_INCLUDE_PRINTERS_DECLS "native_printer_decls.h" #endif #ifndef PERSONALITY0_INCLUDE_PRINTERS_DEFS # define PERSONALITY0_INCLUDE_PRINTERS_DEFS "native_printer_defs.h" #endif #ifndef PERSONALITY1_INCLUDE_PRINTERS_DECLS # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "native_printer_decls.h" #endif #ifndef PERSONALITY1_INCLUDE_PRINTERS_DEFS # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "native_printer_defs.h" #endif #ifndef PERSONALITY2_INCLUDE_PRINTERS_DECLS # define PERSONALITY2_INCLUDE_PRINTERS_DECLS "native_printer_decls.h" #endif #ifndef PERSONALITY2_INCLUDE_PRINTERS_DEFS # define PERSONALITY2_INCLUDE_PRINTERS_DEFS "native_printer_defs.h" #endif #ifndef PERSONALITY1_INCLUDE_FUNCS # define PERSONALITY1_INCLUDE_FUNCS "empty.h" #endif #ifndef PERSONALITY2_INCLUDE_FUNCS # define PERSONALITY2_INCLUDE_FUNCS "empty.h" #endif typedef struct sysent { unsigned nargs; int sys_flags; int sen; int (*sys_func)(); const char *sys_name; } struct_sysent; typedef struct ioctlent { const char *symbol; unsigned int code; } struct_ioctlent; /* Trace Control Block */ struct tcb { int flags; /* See below for TCB_ values */ int pid; /* If 0, this tcb is free */ int qual_flg; /* qual_flags[scno] or DEFAULT_QUAL_FLAGS + RAW */ int u_error; /* Error code */ long scno; /* System call number */ long u_arg[MAX_ARGS]; /* System call arguments */ #if defined(LINUX_MIPSN32) || defined(X32) long long ext_arg[MAX_ARGS]; long long u_lrval; /* long long return value */ #endif long u_rval; /* Return value */ #if SUPPORTED_PERSONALITIES > 1 unsigned int currpers; /* Personality at the time of scno update */ #endif int sys_func_rval; /* Syscall entry parser's return value */ int curcol; /* Output column for this process */ FILE *outf; /* Output file for this process */ const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */ const struct_sysent *s_ent; /* sysent[scno] or dummy struct for bad scno */ const struct_sysent *s_prev_ent; /* for "resuming interrupted SYSCALL" msg */ struct timeval stime; /* System time usage as of last process wait */ struct timeval dtime; /* Delta for system time usage */ struct timeval etime; /* Syscall entry time */ #ifdef USE_LIBUNWIND struct UPT_info* libunwind_ui; struct mmap_cache_t* mmap_cache; unsigned int mmap_cache_size; unsigned int mmap_cache_generation; struct queue_t* queue; #endif }; /* TCB flags */ /* We have attached to this process, but did not see it stopping yet */ #define TCB_STARTUP 0x01 #define TCB_IGNORE_ONE_SIGSTOP 0x02 /* Next SIGSTOP is to be ignored */ /* * Are we in system call entry or in syscall exit? * * This bit is set after all syscall entry processing is done. * Therefore, this bit will be set when next ptrace stop occurs, * which should be syscall exit stop. Other stops which are possible * directly after syscall entry (death, ptrace event stop) * are simpler and handled without calling trace_syscall(), therefore * the places where TCB_INSYSCALL can be set but we aren't in syscall stop * are limited to trace(), this condition is never observed in trace_syscall() * and below. * The bit is cleared after all syscall exit processing is done. * * Use entering(tcp) / exiting(tcp) to check this bit to make code more readable. */ #define TCB_INSYSCALL 0x04 #define TCB_ATTACHED 0x08 /* We attached to it already */ #define TCB_REPRINT 0x10 /* We should reprint this syscall on exit */ #define TCB_FILTERED 0x20 /* This system call has been filtered out */ /* qualifier flags */ #define QUAL_TRACE 0x001 /* this system call should be traced */ #define QUAL_ABBREV 0x002 /* abbreviate the structures of this syscall */ #define QUAL_VERBOSE 0x004 /* decode the structures of this syscall */ #define QUAL_RAW 0x008 /* print all args in hex for this syscall */ #define QUAL_SIGNAL 0x010 /* report events with this signal */ #define QUAL_READ 0x020 /* dump data read on this file descriptor */ #define QUAL_WRITE 0x040 /* dump data written to this file descriptor */ typedef uint8_t qualbits_t; #define UNDEFINED_SCNO 0x100 /* Used only in tcp->qual_flg */ #define DEFAULT_QUAL_FLAGS (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE) #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL)) #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL) #define syserror(tcp) ((tcp)->u_error != 0) #define verbose(tcp) ((tcp)->qual_flg & QUAL_VERBOSE) #define abbrev(tcp) ((tcp)->qual_flg & QUAL_ABBREV) #define filtered(tcp) ((tcp)->flags & TCB_FILTERED) struct xlat { unsigned int val; const char *str; }; #define XLAT(x) { x, #x } #define XLAT_END { 0, NULL } extern const struct xlat addrfams[]; extern const struct xlat at_flags[]; extern const struct xlat dirent_types[]; extern const struct xlat open_access_modes[]; extern const struct xlat open_mode_flags[]; extern const struct xlat resource_flags[]; extern const struct xlat whence_codes[]; /* Format of syscall return values */ #define RVAL_DECIMAL 000 /* decimal format */ #define RVAL_HEX 001 /* hex format */ #define RVAL_OCTAL 002 /* octal format */ #define RVAL_UDECIMAL 003 /* unsigned decimal format */ #if defined(LINUX_MIPSN32) || defined(X32) # if 0 /* unused so far */ # define RVAL_LDECIMAL 004 /* long decimal format */ # define RVAL_LHEX 005 /* long hex format */ # define RVAL_LOCTAL 006 /* long octal format */ # endif # define RVAL_LUDECIMAL 007 /* long unsigned decimal format */ #endif #define RVAL_FD 010 /* file descriptor */ #define RVAL_MASK 017 /* mask for these values */ #define RVAL_STR 020 /* Print `auxstr' field after return val */ #define RVAL_NONE 040 /* Print nothing */ #define RVAL_DECODED 0100 /* syscall decoding finished */ #define TRACE_FILE 001 /* Trace file-related syscalls. */ #define TRACE_IPC 002 /* Trace IPC-related syscalls. */ #define TRACE_NETWORK 004 /* Trace network-related syscalls. */ #define TRACE_PROCESS 010 /* Trace process-related syscalls. */ #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */ #define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */ #define TRACE_MEMORY 0100 /* Trace memory mapping-related syscalls. */ #define SYSCALL_NEVER_FAILS 0200 /* Syscall is always successful. */ #define STACKTRACE_INVALIDATE_CACHE 0400 /* Trigger proc/maps cache updating */ #define STACKTRACE_CAPTURE_ON_ENTER 01000 /* Capture stacktrace on "entering" stage */ #define TRACE_INDIRECT_SUBCALL 02000 /* Syscall is an indirect socket/ipc subcall. */ #define IOCTL_NUMBER_UNKNOWN 0 #define IOCTL_NUMBER_HANDLED 1 #define IOCTL_NUMBER_STOP_LOOKUP 010 #define indirect_ipccall(tcp) (tcp->s_ent->sys_flags & TRACE_INDIRECT_SUBCALL) #if defined(ARM) || defined(AARCH64) \ || defined(I386) || defined(X32) || defined(X86_64) \ || defined(IA64) \ || defined(BFIN) \ || defined(M68K) \ || defined(MICROBLAZE) \ || defined(S390) \ || defined(SH) || defined(SH64) \ || defined(SPARC) || defined(SPARC64) \ /**/ # define NEED_UID16_PARSERS 1 #else # define NEED_UID16_PARSERS 0 #endif typedef enum { CFLAG_NONE = 0, CFLAG_ONLY_STATS, CFLAG_BOTH } cflag_t; extern cflag_t cflag; extern bool debug_flag; extern bool Tflag; extern bool iflag; extern bool count_wallclock; extern unsigned int qflag; extern bool not_failing_only; extern unsigned int show_fd_path; extern bool hide_log_until_execve; /* are we filtering traces based on paths? */ extern const char **paths_selected; #define tracing_paths (paths_selected != NULL) extern unsigned xflag; extern unsigned followfork; #ifdef USE_LIBUNWIND /* if this is true do the stack trace for every system call */ extern bool stack_trace_enabled; #endif extern unsigned ptrace_setoptions; extern unsigned max_strlen; extern unsigned os_release; #undef KERNEL_VERSION #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) void error_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)); void perror_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)); void error_msg_and_die(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN; void error_msg_and_help(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN; void perror_msg_and_die(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN; void die_out_of_memory(void) ATTRIBUTE_NORETURN; void *xmalloc(size_t size) ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1)); void *xcalloc(size_t nmemb, size_t size) ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1, 2)); void *xreallocarray(void *ptr, size_t nmemb, size_t size) ATTRIBUTE_ALLOC_SIZE((2, 3)); char *xstrdup(const char *str) ATTRIBUTE_MALLOC; #if USE_CUSTOM_PRINTF /* * See comment in vsprintf.c for allowed formats. * Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u. */ int strace_vfprintf(FILE *fp, const char *fmt, va_list args); #else # define strace_vfprintf vfprintf #endif extern void set_sortby(const char *); extern void set_overhead(int); extern void qualify(const char *); extern void print_pc(struct tcb *); extern int trace_syscall(struct tcb *); extern void count_syscall(struct tcb *, const struct timeval *); extern void call_summary(FILE *); extern void clear_regs(void); extern void get_regs(pid_t pid); extern int get_scno(struct tcb *tcp); extern const char *syscall_name(long scno); extern bool is_erestart(struct tcb *); extern void temporarily_clear_syserror(struct tcb *); extern void restore_cleared_syserror(struct tcb *); extern int umoven(struct tcb *, long, unsigned int, void *); #define umove(pid, addr, objp) \ umoven((pid), (addr), sizeof(*(objp)), (void *) (objp)) extern int umoven_or_printaddr(struct tcb *, long, unsigned int, void *); #define umove_or_printaddr(pid, addr, objp) \ umoven_or_printaddr((pid), (addr), sizeof(*(objp)), (void *) (objp)) extern int umove_ulong_or_printaddr(struct tcb *, long, unsigned long *); extern int umove_ulong_array_or_printaddr(struct tcb *, long, unsigned long *, size_t); extern int umovestr(struct tcb *, long, unsigned int, char *); extern int upeek(int pid, long, long *); #if defined ALPHA || defined IA64 || defined MIPS \ || defined SH || defined SPARC || defined SPARC64 # define HAVE_GETRVAL2 extern long getrval2(struct tcb *); #else # undef HAVE_GETRVAL2 #endif extern const char *signame(const int); extern void pathtrace_select(const char *); extern int pathtrace_match(struct tcb *); extern int getfdpath(struct tcb *, int, char *, unsigned); extern const char *xlookup(const struct xlat *, const unsigned int); extern const char *xlat_search(const struct xlat *, const size_t, const unsigned int); extern unsigned long get_pagesize(void); extern int string_to_uint(const char *str); extern int next_set_bit(const void *bit_array, unsigned cur_bit, unsigned size_bits); #define QUOTE_0_TERMINATED 0x01 #define QUOTE_OMIT_LEADING_TRAILING_QUOTES 0x02 extern int print_quoted_string(const char *, unsigned int, unsigned int); /* a refers to the lower numbered u_arg, * b refers to the higher numbered u_arg */ #ifdef WORDS_BIGENDIAN # define LONG_LONG(a,b) \ ((long long)((unsigned long long)(unsigned)(b) | ((unsigned long long)(a)<<32))) #else # define LONG_LONG(a,b) \ ((long long)((unsigned long long)(unsigned)(a) | ((unsigned long long)(b)<<32))) #endif extern int getllval(struct tcb *, unsigned long long *, int); extern int printllval(struct tcb *, const char *, int) ATTRIBUTE_FORMAT((printf, 2, 0)); extern void printaddr(long); extern void printxvals(const unsigned int, const char *, const struct xlat *, ...); #define printxval(xlat, val, dflt) printxvals(val, dflt, xlat, NULL) extern int printargs(struct tcb *); extern int printargs_lu(struct tcb *); extern int printargs_ld(struct tcb *); extern void addflags(const struct xlat *, int); extern int printflags(const struct xlat *, int, const char *); extern const char *sprintflags(const char *, const struct xlat *, int); extern const char *sprintmode(int); extern const char *sprinttime(time_t); extern void dumpiov_in_msghdr(struct tcb *, long); extern void dumpiov_in_mmsghdr(struct tcb *, long); extern void dumpiov(struct tcb *, int, long); extern void dumpstr(struct tcb *, long, int); extern void printstr(struct tcb *, long, long); extern bool printnum_short(struct tcb *, long, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)); extern bool printnum_int(struct tcb *, long, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)); extern bool printnum_int64(struct tcb *, long, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)); #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4 extern bool printnum_long_int(struct tcb *, long, const char *, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)) ATTRIBUTE_FORMAT((printf, 4, 0)); # define printnum_slong(tcp, addr) \ printnum_long_int((tcp), (addr), "%" PRId64, "%d") # define printnum_ulong(tcp, addr) \ printnum_long_int((tcp), (addr), "%" PRIu64, "%u") # define printnum_ptr(tcp, addr) \ printnum_long_int((tcp), (addr), "%#" PRIx64, "%#x") #elif SIZEOF_LONG > 4 # define printnum_slong(tcp, addr) \ printnum_int64((tcp), (addr), "%" PRId64) # define printnum_ulong(tcp, addr) \ printnum_int64((tcp), (addr), "%" PRIu64) # define printnum_ptr(tcp, addr) \ printnum_int64((tcp), (addr), "%#" PRIx64) #else # define printnum_slong(tcp, addr) \ printnum_int((tcp), (addr), "%d") # define printnum_ulong(tcp, addr) \ printnum_int((tcp), (addr), "%u") # define printnum_ptr(tcp, addr) \ printnum_int((tcp), (addr), "%#x") #endif extern bool printpair_int(struct tcb *, long, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)); extern bool printpair_int64(struct tcb *, long, const char *) ATTRIBUTE_FORMAT((printf, 3, 0)); extern void printpath(struct tcb *, long); extern void printpathn(struct tcb *, long, unsigned int); #define TIMESPEC_TEXT_BUFSIZE \ (sizeof(intmax_t)*3 * 2 + sizeof("{tv_sec=%jd, tv_nsec=%jd}")) extern void printfd(struct tcb *, int); extern bool print_sockaddr_by_inode(const unsigned long, const char *); extern void print_dirfd(struct tcb *, int); extern void printsock(struct tcb *, long, int); extern void print_sock_optmgmt(struct tcb *, long, int); #ifdef ALPHA extern void printrusage32(struct tcb *, long); extern const char *sprint_timeval32(struct tcb *tcp, long); extern void print_timeval32(struct tcb *tcp, long); extern void print_timeval32_pair(struct tcb *tcp, long); extern void print_itimerval32(struct tcb *tcp, long); #endif extern void printuid(const char *, const unsigned int); extern void print_sigset_addr_len(struct tcb *, long, long); extern const char *sprintsigmask_n(const char *, const void *, unsigned int); #define tprintsigmask_addr(prefix, mask) \ tprints(sprintsigmask_n((prefix), (mask), sizeof(mask))) extern void printsignal(int); extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov); extern void tprint_iov_upto(struct tcb *, unsigned long, unsigned long, int decode_iov, unsigned long); extern void tprint_open_modes(int); extern const char *sprint_open_modes(int); extern void print_seccomp_filter(struct tcb *tcp, unsigned long); extern int block_ioctl(struct tcb *, const unsigned int, long); extern int evdev_ioctl(struct tcb *, const unsigned int, long); extern int loop_ioctl(struct tcb *, const unsigned int, long); extern int mtd_ioctl(struct tcb *, const unsigned int, long); extern int ptp_ioctl(struct tcb *, const unsigned int, long); extern int rtc_ioctl(struct tcb *, const unsigned int, long); extern int scsi_ioctl(struct tcb *, const unsigned int, long); extern int sock_ioctl(struct tcb *, const unsigned int, long); extern int term_ioctl(struct tcb *, const unsigned int, long); extern int ubi_ioctl(struct tcb *, const unsigned int, long); extern int v4l2_ioctl(struct tcb *, const unsigned int, long); extern int tv_nz(const struct timeval *); extern int tv_cmp(const struct timeval *, const struct timeval *); extern double tv_float(const struct timeval *); extern void tv_add(struct timeval *, const struct timeval *, const struct timeval *); extern void tv_sub(struct timeval *, const struct timeval *, const struct timeval *); extern void tv_mul(struct timeval *, const struct timeval *, int); extern void tv_div(struct timeval *, const struct timeval *, int); #ifdef USE_LIBUNWIND extern void unwind_init(void); extern void unwind_tcb_init(struct tcb *tcp); extern void unwind_tcb_fin(struct tcb *tcp); extern void unwind_cache_invalidate(struct tcb* tcp); extern void unwind_print_stacktrace(struct tcb* tcp); extern void unwind_capture_stacktrace(struct tcb* tcp); #endif /* Strace log generation machinery. * * printing_tcp: tcb which has incomplete line being printed right now. * NULL if last line has been completed ('\n'-terminated). * printleader(tcp) examines it, finishes incomplete line if needed, * the sets it to tcp. * line_ended() clears printing_tcp and resets ->curcol = 0. * tcp->curcol == 0 check is also used to detect completeness * of last line, since in -ff mode just checking printing_tcp for NULL * is not enough. * * If you change this code, test log generation in both -f and -ff modes * using: * strace -oLOG -f[f] test/threaded_execve * strace -oLOG -f[f] test/sigkill_rain * strace -oLOG -f[f] -p "`pidof web_browser`" */ extern struct tcb *printing_tcp; extern void printleader(struct tcb *); extern void line_ended(void); extern void tabto(void); extern void tprintf(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2)); extern void tprints(const char *str); #if SUPPORTED_PERSONALITIES > 1 extern void set_personality(int personality); extern unsigned current_personality; #else # define set_personality(personality) ((void)0) # define current_personality 0 #endif #if SUPPORTED_PERSONALITIES == 1 # define current_wordsize PERSONALITY0_WORDSIZE #else # if SUPPORTED_PERSONALITIES == 2 && PERSONALITY0_WORDSIZE == PERSONALITY1_WORDSIZE # define current_wordsize PERSONALITY0_WORDSIZE # else extern unsigned current_wordsize; # endif #endif /* In many, many places we play fast and loose and use * tprintf("%d", (int) tcp->u_arg[N]) to print fds, pids etc. * We probably need to use widen_to_long() instead: */ #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4 # define widen_to_long(v) (current_wordsize == 4 ? (long)(int32_t)(v) : (long)(v)) #else # define widen_to_long(v) ((long)(v)) #endif extern const struct_sysent sysent0[]; extern const char *const errnoent0[]; extern const char *const signalent0[]; extern const struct_ioctlent ioctlent0[]; extern qualbits_t *qual_vec[SUPPORTED_PERSONALITIES]; #define qual_flags (qual_vec[current_personality]) #if SUPPORTED_PERSONALITIES > 1 extern const struct_sysent *sysent; extern const char *const *errnoent; extern const char *const *signalent; extern const struct_ioctlent *ioctlent; #else # define sysent sysent0 # define errnoent errnoent0 # define signalent signalent0 # define ioctlent ioctlent0 #endif extern unsigned nsyscalls; extern unsigned nerrnos; extern unsigned nsignals; extern unsigned nioctlents; extern unsigned num_quals; #if SUPPORTED_PERSONALITIES > 1 # include "printers.h" #else # include "native_printer_decls.h" #endif /* * If you need non-NULL sysent[scno].sys_func and sysent[scno].sys_name */ #define SCNO_IS_VALID(scno) \ ((unsigned long)(scno) < nsyscalls && sysent[scno].sys_func) /* Only ensures that sysent[scno] isn't out of range */ #define SCNO_IN_RANGE(scno) \ ((unsigned long)(scno) < nsyscalls) #define MPERS_FUNC_NAME__(prefix, name) prefix ## name #define MPERS_FUNC_NAME_(prefix, name) MPERS_FUNC_NAME__(prefix, name) #define MPERS_FUNC_NAME(name) MPERS_FUNC_NAME_(MPERS_PREFIX, name) #define SYS_FUNC_NAME(syscall_name) MPERS_FUNC_NAME(syscall_name) #define SYS_FUNC(syscall_name) int SYS_FUNC_NAME(sys_ ## syscall_name)(struct tcb *tcp) #define MPERS_PRINTER_DECL(type, name) type MPERS_FUNC_NAME(name)