#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-#ifdef _LARGEFILE64_SOURCE
-/* This is the macro everything checks before using foo64 names. */
-# ifndef _LFS64_LARGEFILE
-# define _LFS64_LARGEFILE 1
-# endif
-#endif
+
#ifdef MIPS
# include <sgidefs.h>
+# if _MIPS_SIM == _MIPS_SIM_ABI64
+# define LINUX_MIPSN64
+# elif _MIPS_SIM == _MIPS_SIM_NABI32
+# define LINUX_MIPSN32
+# elif _MIPS_SIM == _MIPS_SIM_ABI32
+# define LINUX_MIPSO32
+# else
+# error Unsupported _MIPS_SIM
+# endif
#endif
+
#include <features.h>
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
-#include <ctype.h>
+/* Open-coding isprint(ch) et al proved more efficient than calling
+ * generalized libc interface. We don't *want* to do non-ASCII anyway.
+ */
+/* #include <ctype.h> */
#include <string.h>
#include <errno.h>
#include <signal.h>
#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).
*/
#endif
/* Configuration section */
-#ifndef MAX_QUALS
-# if defined(MIPS)
-# define MAX_QUALS 7000 /* maximum number of syscalls, signals, etc. */
-# else
-# define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
-# endif
-#endif
#ifndef DEFAULT_STRLEN
/* default maximum # of bytes printed in `printstr', change with -s switch */
# define DEFAULT_STRLEN 32
* Maximum number of args to a syscall.
*
* Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS!
- * linux/<ARCH>/syscallent.h: all have nargs <= 6.
+ * linux/<ARCH>/syscallent*.h:
+ * all have nargs <= 6 except mips o32 which has nargs <= 7.
*/
#ifndef MAX_ARGS
-# define MAX_ARGS 6
+# 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
-#if defined(SPARC) || defined(SPARC64)
-# define LINUXSPARC
+#ifndef ERESTARTSYS
+# define ERESTARTSYS 512
#endif
-#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
-# define LINUX_MIPSO32
+#ifndef ERESTARTNOINTR
+# define ERESTARTNOINTR 513
#endif
-#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
-# define LINUX_MIPSN32
-# define LINUX_MIPS64
+#ifndef ERESTARTNOHAND
+# define ERESTARTNOHAND 514
#endif
-#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
-# define LINUX_MIPSN64
-# define LINUX_MIPS64
-#endif
-
-#if (defined(LINUXSPARC) || defined(X86_64) || defined(ARM) || defined(AARCH64) || defined(AVR32)) && defined(__GLIBC__)
-# include <sys/ptrace.h>
-#else
-/* Work around awkward prototype in ptrace.h. */
-# define ptrace xptrace
-# include <sys/ptrace.h>
-# undef ptrace
-# ifdef POWERPC
-# define __KERNEL__
-# include <asm/ptrace.h>
-# undef __KERNEL__
-# endif
-extern long ptrace(int, int, char *, long);
+#ifndef ERESTART_RESTARTBLOCK
+# define ERESTART_RESTARTBLOCK 516
#endif
-#if !defined(__GLIBC__)
-# define PTRACE_PEEKUSER PTRACE_PEEKUSR
-# define PTRACE_POKEUSER PTRACE_POKEUSR
-#endif
-#if defined(X86_64) || defined(X32) || defined(I386) || defined(TILE)
-/* For struct pt_regs. x86 strace uses PTRACE_GETREGS.
- * PTRACE_GETREGS returns registers in the layout of this struct.
- */
-# include <asm/ptrace.h>
-#endif
#ifdef ALPHA
# define REG_R0 0
# define REG_A0 16
# define REG_SYSCALL (2*8)
#endif /* SH64 */
#ifdef AARCH64
-#define NUM_ARM_REGS 18
struct arm_pt_regs {
- int uregs[NUM_ARM_REGS];
+ int uregs[18];
};
-#define ARM_cpsr uregs[16]
-#define ARM_pc uregs[15]
-#define ARM_lr uregs[14]
-#define ARM_sp uregs[13]
-#define ARM_ip uregs[12]
-#define ARM_fp uregs[11]
-#define ARM_r10 uregs[10]
-#define ARM_r9 uregs[9]
-#define ARM_r8 uregs[8]
-#define ARM_r7 uregs[7]
-#define ARM_r6 uregs[6]
-#define ARM_r5 uregs[5]
-#define ARM_r4 uregs[4]
-#define ARM_r3 uregs[3]
-#define ARM_r2 uregs[2]
-#define ARM_r1 uregs[1]
-#define ARM_r0 uregs[0]
-#define ARM_ORIG_r0 uregs[17]
+# define ARM_cpsr uregs[16]
+# define ARM_pc uregs[15]
+# define ARM_lr uregs[14]
+# define ARM_sp uregs[13]
+# define ARM_ip uregs[12]
+# define ARM_fp uregs[11]
+# define ARM_r10 uregs[10]
+# define ARM_r9 uregs[9]
+# define ARM_r8 uregs[8]
+# define ARM_r7 uregs[7]
+# define ARM_r6 uregs[6]
+# define ARM_r5 uregs[5]
+# define ARM_r4 uregs[4]
+# define ARM_r3 uregs[3]
+# define ARM_r2 uregs[2]
+# define ARM_r1 uregs[1]
+# define ARM_r0 uregs[0]
+# define ARM_ORIG_r0 uregs[17]
#endif /* AARCH64 */
-#define SUPPORTED_PERSONALITIES 1
-#define DEFAULT_PERSONALITY 0
-
-#ifdef LINUXSPARC
+#if defined(SPARC) || defined(SPARC64)
/* Indexes into the pt_regs.u_reg[] array -- UREG_XX from kernel are all off
* by 1 and use Ix instead of Ox. These work for both 32 and 64 bit Linux. */
# define U_REG_G1 0
# define U_REG_O1 8
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
-# undef SUPPORTED_PERSONALITIES
# if defined(SPARC64)
# include <asm/psrcompat.h>
# define SUPPORTED_PERSONALITIES 3
# include <asm/psr.h>
# define SUPPORTED_PERSONALITIES 2
# endif /* SPARC64 */
-#endif /* LINUXSPARC */
+#endif /* SPARC[64] */
#ifdef X86_64
-# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 3
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
#endif
#ifdef X32
-# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
#endif
#ifdef ARM
-# undef SUPPORTED_PERSONALITIES
-# define SUPPORTED_PERSONALITIES 2
-# define PERSONALITY0_WORDSIZE 4
-# define PERSONALITY1_WORDSIZE 4
+/* one personality */
#endif
#ifdef AARCH64
-# undef SUPPORTED_PERSONALITIES
/* The existing ARM personality, then AArch64 */
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 8
-# undef DEFAULT_PERSONALITY
# define DEFAULT_PERSONALITY 1
#endif
#ifdef POWERPC64
-# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
#endif
#ifdef TILE
-# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
# ifdef __tilepro__
-# undef DEFAULT_PERSONALITY
# define DEFAULT_PERSONALITY 1
# endif
#endif
-#ifndef PERSONALITY0_WORDSIZE
-# define PERSONALITY0_WORDSIZE (int)(sizeof(long))
-#endif
-
-#if !HAVE_DECL_PTRACE_SETOPTIONS
-# define PTRACE_SETOPTIONS 0x4200
-#endif
-#if !HAVE_DECL_PTRACE_GETEVENTMSG
-# define PTRACE_GETEVENTMSG 0x4201
-#endif
-#if !HAVE_DECL_PTRACE_GETSIGINFO
-# define PTRACE_GETSIGINFO 0x4202
-#endif
-
-#if !HAVE_DECL_PTRACE_O_TRACESYSGOOD
-# define PTRACE_O_TRACESYSGOOD 0x00000001
-#endif
-#if !HAVE_DECL_PTRACE_O_TRACEFORK
-# define PTRACE_O_TRACEFORK 0x00000002
-#endif
-#if !HAVE_DECL_PTRACE_O_TRACEVFORK
-# define PTRACE_O_TRACEVFORK 0x00000004
-#endif
-#if !HAVE_DECL_PTRACE_O_TRACECLONE
-# define PTRACE_O_TRACECLONE 0x00000008
-#endif
-#if !HAVE_DECL_PTRACE_O_TRACEEXEC
-# define PTRACE_O_TRACEEXEC 0x00000010
+#ifndef SUPPORTED_PERSONALITIES
+# define SUPPORTED_PERSONALITIES 1
#endif
-#if !HAVE_DECL_PTRACE_O_TRACEEXIT
-# define PTRACE_O_TRACEEXIT 0x00000040
+#ifndef DEFAULT_PERSONALITY
+# define DEFAULT_PERSONALITY 0
#endif
-
-#if !HAVE_DECL_PTRACE_EVENT_FORK
-# define PTRACE_EVENT_FORK 1
-#endif
-#if !HAVE_DECL_PTRACE_EVENT_VFORK
-# define PTRACE_EVENT_VFORK 2
-#endif
-#if !HAVE_DECL_PTRACE_EVENT_CLONE
-# define PTRACE_EVENT_CLONE 3
-#endif
-#if !HAVE_DECL_PTRACE_EVENT_EXEC
-# define PTRACE_EVENT_EXEC 4
-#endif
-#if !HAVE_DECL_PTRACE_EVENT_VFORK_DONE
-# define PTRACE_EVENT_VFORK_DONE 5
-#endif
-#if !HAVE_DECL_PTRACE_EVENT_EXIT
-# define PTRACE_EVENT_EXIT 6
-#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
-
-#ifdef USE_SEIZE
-# undef PTRACE_SEIZE
-# define PTRACE_SEIZE 0x4206
-# undef PTRACE_INTERRUPT
-# define PTRACE_INTERRUPT 0x4207
-# undef PTRACE_LISTEN
-# define PTRACE_LISTEN 0x4208
-# undef PTRACE_EVENT_STOP
-# define PTRACE_EVENT_STOP 128
+#ifndef PERSONALITY0_WORDSIZE
+# define PERSONALITY0_WORDSIZE SIZEOF_LONG
#endif
-#if defined(I386)
-extern struct pt_regs i386_regs;
-#endif
-#if defined(IA64)
-extern long ia32;
-#endif
-#if defined(SPARC) || defined(SPARC64)
-extern struct pt_regs regs;
-#endif
-#if defined(ARM)
+#if defined(I386) || defined(X86_64)
+extern uint32_t *const i386_esp_ptr;
+#elif defined(IA64)
+extern bool ia64_ia32mode;
+#elif defined(SPARC) || defined(SPARC64)
+extern struct pt_regs sparc_regs;
+#elif defined(ARM)
extern struct pt_regs arm_regs;
-#endif
-#if defined(TILE)
+#elif defined(TILE)
extern struct pt_regs tile_regs;
+#elif defined(POWERPC)
+extern struct pt_regs ppc_regs;
#endif
+typedef struct sysent {
+ unsigned nargs;
+ int sys_flags;
+ 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; /* Process Id of this entry */
- int u_nargs; /* System call argument count */
+ 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]; /* System call arguments */
-#endif
- long u_rval; /* return value */
-#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
- int currpers; /* Personality at the time of scno update */
+ unsigned int currpers; /* Personality at the time of scno update */
#endif
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 */
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 */
/* Support for tracing forked processes: */
long inst[2]; /* Saved clone args (badly named) */
+
+#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 */
-#define TCB_INUSE 00001 /* This table entry is in use */
/* We have attached to this process, but did not see it stopping yet */
-#define TCB_STARTUP 00002
-#define TCB_IGNORE_ONE_SIGSTOP 00004 /* Next SIGSTOP is to be ignored */
+#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?
*
*
* Use entering(tcp) / exiting(tcp) to check this bit to make code more readable.
*/
-#define TCB_INSYSCALL 00010
-#define TCB_ATTACHED 00020 /* It is attached already */
-/* Are we PROG from "strace PROG [ARGS]" invocation? */
-#define TCB_STRACE_CHILD 0040
-#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
-#define TCB_REPRINT 00200 /* We should reprint this syscall on exit */
-#define TCB_FILTERED 00400 /* This system call has been filtered out */
-/* x86 does not need TCB_WAITEXECVE.
- * It can detect SIGTRAP by looking at eax/rax.
- * See "not a syscall entry (eax = %ld)\n" message
- * in syscall_fixup_on_sysenter().
+#define TCB_INSYSCALL 0x04
+#define TCB_ATTACHED 0x08 /* We attached to it already */
+#define TCB_BPTSET 0x10 /* "Breakpoint" set after fork(2) */
+#define TCB_REPRINT 0x20 /* We should reprint this syscall on exit */
+#define TCB_FILTERED 0x40 /* This system call has been filtered out */
+/*
+ * x86 does not need TCB_WAITEXECVE.
+ * It can detect post-execve SIGTRAP by looking at eax/rax.
+ * See "not a syscall entry (eax = %ld)\n" message.
+ *
+ * Note! On new kernels (about 2.5.46+), we use PTRACE_O_TRACEEXEC, which
+ * suppresses post-execve SIGTRAP. If you are adding a new arch which is
+ * only supported by newer kernels, you most likely don't need to define
+ * TCB_WAITEXECVE!
*/
-#if defined(ALPHA) || defined(AVR32) || defined(SPARC) || defined(SPARC64) \
- || defined(POWERPC) || defined(IA64) || defined(HPPA) \
- || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) \
- || defined(ARM) || defined(AARCH64) || defined(MIPS) || defined(BFIN) \
- || defined(TILE)
+#if defined(ALPHA) \
+ || defined(SPARC) || defined(SPARC64) \
+ || defined(POWERPC) \
+ || defined(IA64) \
+ || defined(HPPA) \
+ || defined(SH) || defined(SH64) \
+ || defined(S390) || defined(S390X) \
+ || defined(ARM) \
+ || defined(MIPS)
/* This tracee has entered into execve syscall. Expect post-execve SIGTRAP
* to happen. (When it is detected, tracee is continued and this bit is cleared.)
*/
-# define TCB_WAITEXECVE 01000
+# define TCB_WAITEXECVE 0x80
#endif
/* qualifier flags */
-#define QUAL_TRACE 0001 /* this system call should be traced */
-#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
-#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
-#define QUAL_RAW 0010 /* print all args in hex for this syscall */
-#define QUAL_SIGNAL 0020 /* report events with this signal */
-#define QUAL_FAULT 0040 /* report events with this fault */
-#define QUAL_READ 0100 /* dump data read on this file descriptor */
-#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
+#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) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
-#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
+#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 {
- int val;
+ unsigned int val;
const char *str;
};
+#define XLAT(x) { x, #x }
+#define XLAT_END { 0, NULL }
-extern const struct xlat open_mode_flags[];
extern const struct xlat addrfams[];
-extern const struct xlat struct_user_offsets[];
+extern const struct xlat at_flags[];
extern const struct xlat open_access_modes[];
+extern const struct xlat open_mode_flags[];
+extern const struct xlat whence_codes[];
/* Format of syscall return values */
#define RVAL_DECIMAL 000 /* decimal format */
# endif
# define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
#endif
-#define RVAL_MASK 007 /* mask for these values */
+#define RVAL_FD 010 /* file descriptor */
+#define RVAL_MASK 017 /* mask for these values */
-#define RVAL_STR 010 /* Print `auxstr' field after return val */
-#define RVAL_NONE 020 /* Print nothing */
+#define RVAL_STR 020 /* Print `auxstr' field after return val */
+#define RVAL_NONE 040 /* Print nothing */
#define TRACE_FILE 001 /* Trace file-related syscalls. */
#define TRACE_IPC 002 /* Trace IPC-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. */
+
+#if defined(ARM) || defined(AARCH64) \
+ || defined(I386) || defined(X32) || defined(X86_64) \
+ || 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_BOTH
} cflag_t;
extern cflag_t cflag;
-extern int *qual_flags;
extern bool debug_flag;
extern bool Tflag;
-extern bool qflag;
+extern bool iflag;
+extern bool count_wallclock;
+extern unsigned int qflag;
extern bool not_failing_only;
-extern bool show_fd_path;
-extern bool tracing_paths;
+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 bool need_fork_exec_workarounds;
-extern unsigned int xflag;
-extern unsigned int followfork;
-extern unsigned int ptrace_setoptions;
-extern unsigned int max_strlen;
+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))
enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
void perror_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
void die_out_of_memory(void) __attribute__ ((noreturn));
-#ifdef USE_CUSTOM_PRINTF
+#if USE_CUSTOM_PRINTF
/*
- * Speed-optimized vfprintf implementation.
* See comment in vsprintf.c for allowed formats.
* Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u.
- *
- * 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.
*/
int strace_vfprintf(FILE *fp, const char *fmt, va_list args);
#else
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 *, struct timeval *);
+extern void count_syscall(struct tcb *, const struct timeval *);
extern void call_summary(FILE *);
#if defined(AVR32) \
|| defined(AARCH64) \
|| defined(ARM) \
|| defined(SPARC) || defined(SPARC64) \
- || defined(TILE)
+ || defined(TILE) \
+ || defined(OR1K) \
+ || defined(METAG) \
+ || defined(ARC) \
+ || defined(POWERPC)
extern long get_regs_error;
# define clear_regs() (get_regs_error = -1)
extern void get_regs(pid_t pid);
# define clear_regs() ((void)0)
# define get_regs(pid) ((void)0)
#endif
-extern int umoven(struct tcb *, long, int, char *);
+extern int umoven(struct tcb *, long, unsigned int, char *);
#define umove(pid, addr, objp) \
umoven((pid), (addr), sizeof(*(objp)), (char *) (objp))
-extern int umovestr(struct tcb *, long, int, char *);
-extern int upeek(struct tcb *, long, long *);
+extern int umovestr(struct tcb *, long, unsigned int, char *);
+extern int upeek(int pid, long, long *);
#if defined(SPARC) || defined(SPARC64) || defined(IA64) || defined(SH)
extern long getrval2(struct tcb *);
#endif
extern int setbpt(struct tcb *);
extern int clearbpt(struct tcb *);
-extern const char *signame(int);
-extern int is_restart_error(struct tcb *);
-extern int pathtrace_select(const char *);
+extern const char *signame(const int);
+extern void pathtrace_select(const char *);
extern int pathtrace_match(struct tcb *);
-extern const char *getfdpath(struct tcb *, int);
+extern int getfdpath(struct tcb *, int, char *, unsigned);
-extern const char *xlookup(const struct xlat *, int);
+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 int string_to_uint(const char *str);
-extern int string_quote(const char *, char *, long, int);
+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
-#if HAVE_LONG_LONG
-/* _l refers to the lower numbered u_arg,
- * _h refers to the higher numbered u_arg
+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
*/
-# if HAVE_LITTLE_ENDIAN_LONG_LONG
-# define LONG_LONG(_l,_h) \
- ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
-# else
-# define LONG_LONG(_l,_h) \
- ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
-# endif
-extern int printllval(struct tcb *, const char *, int);
+#if HAVE_LITTLE_ENDIAN_LONG_LONG
+# define LONG_LONG(a,b) \
+ ((long long)((unsigned long long)(unsigned)(a) | ((unsigned long long)(b)<<32)))
+#else
+# define LONG_LONG(a,b) \
+ ((long long)((unsigned long long)(unsigned)(b) | ((unsigned long long)(a)<<32)))
#endif
-extern void printxval(const struct xlat *, int, const char *);
+extern int getllval(struct tcb *, unsigned long long *, int);
+extern int printllval(struct tcb *, const char *, int);
+
+extern void printxval(const struct xlat *, const unsigned int, const char *);
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 void printnum(struct tcb *, long, const char *);
extern void printnum_int(struct tcb *, long, const char *);
extern void printpath(struct tcb *, long);
-extern void printpathn(struct tcb *, long, int);
+extern void printpathn(struct tcb *, long, unsigned int);
#define TIMESPEC_TEXT_BUFSIZE (sizeof(long)*3 * 2 + sizeof("{%u, %u}"))
#define TIMEVAL_TEXT_BUFSIZE TIMESPEC_TEXT_BUFSIZE
extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
extern char *sprinttv(char *, struct tcb *, long, enum bitness_t, int special);
extern void print_timespec(struct tcb *, long);
extern void sprint_timespec(char *, struct tcb *, long);
-#ifdef HAVE_SIGINFO_T
-extern void printsiginfo(siginfo_t *, int);
-#endif
+extern void printsiginfo(const siginfo_t *, int);
+extern void printsiginfo_at(struct tcb *tcp, long addr);
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);
extern void printrusage(struct tcb *, long);
#ifdef ALPHA
extern void printrusage32(struct tcb *, long);
#endif
-extern void printuid(const char *, unsigned long);
-extern void printcall(struct tcb *);
-extern void print_sigset(struct tcb *, long, int);
+extern void printuid(const char *, const unsigned int);
+extern void print_sigset_addr_len(struct tcb *, long, long);
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(mode_t);
-extern const char *sprint_open_modes(mode_t);
+extern void tprint_open_modes(int);
+extern const char *sprint_open_modes(int);
extern void print_loff_t(struct tcb *, long);
-
-extern const struct ioctlent *ioctl_lookup(long);
-extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
-extern int ioctl_decode(struct tcb *, long, long);
-extern int term_ioctl(struct tcb *, long, long);
-extern int sock_ioctl(struct tcb *, long, long);
-extern int proc_ioctl(struct tcb *, int, int);
-extern int rtc_ioctl(struct tcb *, long, long);
-extern int scsi_ioctl(struct tcb *, long, long);
-extern int block_ioctl(struct tcb *, long, long);
-extern int mtd_ioctl(struct tcb *, long, long);
-extern int loop_ioctl(struct tcb *, long, long);
-
-extern int tv_nz(struct timeval *);
-extern int tv_cmp(struct timeval *, struct timeval *);
-extern double tv_float(struct timeval *);
-extern void tv_add(struct timeval *, struct timeval *, struct timeval *);
-extern void tv_sub(struct timeval *, struct timeval *, struct timeval *);
-extern void tv_mul(struct timeval *, struct timeval *, int);
-extern void tv_div(struct timeval *, struct timeval *, int);
+extern void print_seccomp_filter(struct tcb *tcp, unsigned long);
+
+extern const struct_ioctlent *ioctl_lookup(const unsigned int);
+extern const struct_ioctlent *ioctl_next_match(const struct_ioctlent *);
+extern void ioctl_print_code(const unsigned int);
+extern int ioctl_decode(struct tcb *, const unsigned int, long);
+extern int ioctl_decode_command_number(const unsigned int);
+extern int block_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.
*
#if SUPPORTED_PERSONALITIES > 1
extern void set_personality(int personality);
-extern int current_personality;
-extern const int personality_wordsize[];
-# define current_wordsize (personality_wordsize[current_personality])
+extern unsigned current_personality;
#else
# define set_personality(personality) ((void)0)
# define current_personality 0
-# define current_wordsize PERSONALITY0_WORDSIZE
#endif
-struct sysent {
- unsigned nargs;
- int sys_flags;
- int (*sys_func)();
- const char *sys_name;
-};
+#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
-struct ioctlent {
- const char *doth;
- const char *symbol;
- unsigned long code;
-};
+/* 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 *sysent;
-extern unsigned nsyscalls;
+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 unsigned nerrnos;
-extern const struct ioctlent *ioctlent;
-extern unsigned nioctlents;
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 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 && sysent[scno].sys_func)
+ ((unsigned long)(scno) < nsyscalls)
projects / strace / blobdiff