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- /* sys/strace.h
-
- Copyright 1996, 1997, 1998, 1999, 2000, 2001 Red Hat, Inc.
-
- This file is part of Cygwin.
-
- This software is a copyrighted work licensed under the terms of the
- Cygwin license. Please consult the file "CYGWIN_LICENSE" for
- details. */
-
- /* sys/strace.h */
-
- /* This file contains routines for tracing system calls and other internal
- phenomenon.
-
- When tracing system calls, try to use the same style throughout:
-
- result = syscall (arg1, arg2, arg3) [optional extra stuff]
-
- If a system call can block (eg: read, write, wait), print another message
- before hanging so the user will know why the program has stopped.
-
- Note: __seterrno will also print a trace message. Have that printed
- *first*. This will make it easy to always know what __seterrno is
- refering to. For the same reason, try not to have __seterrno messages
- printed alone.
- */
-
- #ifndef _SYS_STRACE_H
- #define _SYS_STRACE_H
-
- #include <stdarg.h>
-
- #ifdef __cplusplus
-
- class strace
- {
- int vsprntf (char *buf, const char *func, const char *infmt, va_list ap);
- void write (unsigned category, const char *buf, int count);
- public:
- int microseconds ();
- int version;
- int active;
- int lmicrosec;
- int execing;
- int inited;
- void hello ();
- void prntf (unsigned, const char *func, const char *, ...) /*__attribute__ ((regparm(3)))*/;
- void vprntf (unsigned, const char *func, const char *, va_list ap) /*__attribute__ ((regparm(3)))*/;
- void wm (int message, int word, int lon) __attribute__ ((regparm(3)));
- };
-
- extern strace strace;
-
- #endif /* __cplusplus */
-
- #define _STRACE_INTERFACE_ACTIVATE_ADDR -1
- #define _STRACE_INTERFACE_ACTIVATE_ADDR1 -2
-
- /* Bitmasks of tracing messages to print. */
-
- #define _STRACE_ALL 0x00001 // so behaviour of strace=1 is unchanged
- #define _STRACE_FLUSH 0x00002 // flush output buffer after every message
- #define _STRACE_INHERIT 0x00004 // children inherit mask from parent
- #define _STRACE_UHOH 0x00008 // unusual or weird phenomenon
- #define _STRACE_SYSCALL 0x00010 // system calls
- #define _STRACE_STARTUP 0x00020 // argc/envp printout at startup
- #define _STRACE_DEBUG 0x00040 // info to help debugging
- #define _STRACE_PARANOID 0x00080 // paranoid info
- #define _STRACE_TERMIOS 0x00100 // info for debugging termios stuff
- #define _STRACE_SELECT 0x00200 // info on ugly select internals
- #define _STRACE_WM 0x00400 // trace windows messages (enable _strace_wm)
- #define _STRACE_SIGP 0x00800 // trace signal and process handling
- #define _STRACE_MINIMAL 0x01000 // very minimal strace output
- #define _STRACE_EXITDUMP 0x04000 // dump strace cache on exit
- #define _STRACE_SYSTEM 0x08000 // cache strace messages
- #define _STRACE_NOMUTEX 0x10000 // don't use mutex for synchronization
- #define _STRACE_MALLOC 0x20000 // trace malloc calls
- #define _STRACE_THREAD 0x40000 // thread-locking calls
- #define _STRACE_NOTALL 0x80000 // don't include if _STRACE_ALL
- #if defined (DEBUGGING)
- # define _STRACE_ON strace.active = 1;
- # define _STRACE_OFF strace.active = 0;
- #else
- # define _STRACE_ON
- # define _STRACE_OFF
- #endif
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- void small_printf (const char *, ...);
- void strace_printf (unsigned, const char *func, const char *, ...);
-
- #ifdef __cplusplus
- }
- #endif
-
- #ifdef __cplusplus
-
- #ifdef NOSTRACE
- #define define_strace(c, f)
- #define define_strace1(c, f)
- #else
- #ifdef NEW_MACRO_VARARGS
- /* Output message to strace log */
-
- #define define_strace0(c,...) \
- do { \
- if ((c & _STRACE_SYSTEM) || strace.active) \
- strace.prntf (c, __PRETTY_FUNCTION__, __VA_ARGS__); \
- } \
- while (0)
-
- #define define_strace(c, ...) define_strace0 (_STRACE_ ## c, __VA_ARGS__)
- #define define_strace1(c, ...) define_strace0 ((_STRACE_ ## c | _STRACE_NOTALL), __VA_ARGS__)
-
- #define debug_printf(...) define_strace (DEBUG, __VA_ARGS__)
- #define paranoid_printf(...) define_strace (PARANOID, __VA_ARGS__)
- #define select_printf(...) define_strace (SELECT, __VA_ARGS__)
- #define sigproc_printf(...) define_strace (SIGP, __VA_ARGS__)
- #define syscall_printf(...) define_strace (SYSCALL, __VA_ARGS__)
- #define system_printf(...) define_strace (SYSTEM, __VA_ARGS__)
- #define termios_printf(...) define_strace (TERMIOS, __VA_ARGS__)
- #define wm_printf(...) define_strace (WM, __VA_ARGS__)
- #define minimal_printf(...) define_strace1 (MINIMAL, __VA_ARGS__)
- #define malloc_printf(...) define_strace1 (MALLOC, __VA_ARGS__)
- #define thread_printf(...) define_strace1 (THREAD, __VA_ARGS__)
- #else
- #define strace_printf_wrap(what, fmt, args...) \
- ((void) ({\
- if ((_STRACE_ ## what & _STRACE_SYSTEM) || strace.active) \
- strace.prntf(_STRACE_ ## what, __PRETTY_FUNCTION__, fmt, ## args); \
- 0; \
- }))
- #define strace_printf_wrap1(what, fmt, args...) \
- ((void) ({\
- if ((_STRACE_ ## what & _STRACE_SYSTEM) || strace.active) \
- strace.prntf((_STRACE_ ## what) | _STRACE_NOTALL, __PRETTY_FUNCTION__, fmt, ## args); \
- 0; \
- }))
-
- #define debug_printf(fmt, args...) strace_printf_wrap(DEBUG, fmt , ## args)
- #define paranoid_printf(fmt, args...) strace_printf_wrap1(PARANOID, fmt , ## args)
- #define select_printf(fmt, args...) strace_printf_wrap(SELECT, fmt , ## args)
- #define sigproc_printf(fmt, args...) strace_printf_wrap(SIGP, fmt , ## args)
- #define syscall_printf(fmt, args...) strace_printf_wrap(SYSCALL, fmt , ## args)
- #define system_printf(fmt, args...) strace_printf_wrap(SYSTEM, fmt , ## args)
- #define termios_printf(fmt, args...) strace_printf_wrap(TERMIOS, fmt , ## args)
- #define wm_printf(fmt, args...) strace_printf_wrap(WM, fmt , ## args)
- #define minimal_printf(fmt, args...) strace_printf_wrap1(MINIMAL, fmt , ## args)
- #define malloc_printf(fmt, args...) strace_printf_wrap1(MALLOC, fmt , ## args)
- #define thread_printf(fmt, args...) strace_printf_wrap1(THREAD, fmt , ## args)
- #endif /*NEW_MACRO_VARARGS*/
- #endif /*NOSTRACE*/
- #endif /* __cplusplus */
- #endif /* _SYS_STRACE_H */
-