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/*--------------------------------------------------------------------*/
/*--- Printing libc stuff. pub_tool_libcprint.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2009 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PUB_TOOL_LIBCPRINT_H
#define __PUB_TOOL_LIBCPRINT_H
/* Enable compile-time format string checking by gcc.
This feature is supported since at least gcc version 2.95.
For more information about the format attribute, see also
http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Function-Attributes.html.
*/
#if defined(__GNUC__)
#define PRINTF_CHECK(x, y) __attribute__((format(__printf__, x, y)))
#else
#define PRINTF_CHECK(x, y)
#endif
/* ---------------------------------------------------------------------
Basic printing
------------------------------------------------------------------ */
/* Note that they all output to the file descriptor given by the
* --log-fd/--log-file/--log-socket argument, which defaults to 2 (stderr).
* Hence no need for VG_(fprintf)().
*/
extern UInt VG_(printf) ( const HChar *format, ... ) PRINTF_CHECK(1, 2);
extern UInt VG_(vprintf) ( const HChar *format, va_list vargs ) PRINTF_CHECK(1, 0);
extern UInt VG_(sprintf) ( Char* buf, const HChar* format, ... ) PRINTF_CHECK(2, 3);
extern UInt VG_(vsprintf) ( Char* buf, const HChar* format, va_list vargs ) PRINTF_CHECK(2, 0);
extern UInt VG_(snprintf) ( Char* buf, Int size,
const HChar *format, ... ) PRINTF_CHECK(3, 4);
extern UInt VG_(vsnprintf)( Char* buf, Int size,
const HChar *format, va_list vargs ) PRINTF_CHECK(3, 0);
// Percentify n/m with d decimal places. Includes the '%' symbol at the end.
// Right justifies in 'buf'.
extern void VG_(percentify)(ULong n, ULong m, UInt d, Int n_buf, char buf[]);
/* ---------------------------------------------------------------------
Messages for the user
------------------------------------------------------------------ */
/* No, really. I _am_ that strange. */
#define OINK(nnn) VG_(message)(Vg_DebugMsg, "OINK %d",nnn)
/* Print a message prefixed by "??<pid>?? "; '?' depends on the VgMsgKind.
Should be used for all user output. */
typedef
enum { Vg_UserMsg, /* '?' == '=' */
Vg_DebugMsg, /* '?' == '-' */
Vg_DebugExtraMsg, /* '?' == '+' */
Vg_ClientMsg /* '?' == '*' */
}
VgMsgKind;
/* Send a single-part message. Appends a newline. The format
specification may contain any ISO C format specifier or %t.
No attempt is made to let the compiler verify consistency of the
format string and the argument list. */
extern UInt VG_(message_no_f_c)( VgMsgKind kind, const HChar* format, ... );
/* Send a single-part message. Appends a newline. The format
specification may contain any ISO C format specifier. The gcc compiler
will verify consistency of the format string and the argument list. */
extern UInt VG_(message)( VgMsgKind kind, const HChar* format, ... )
PRINTF_CHECK(2, 3);
extern UInt VG_(vmessage)( VgMsgKind kind, const HChar* format, va_list vargs )
PRINTF_CHECK(2, 0);
// Short-cuts for VG_(message)().
#define VG_UMSG( format, args... ) VG_(message)(Vg_UserMsg, format, ##args)
#define VG_DMSG( format, args... ) VG_(message)(Vg_DebugMsg, format, ##args)
#define VG_EMSG( format, args... ) VG_(message)(Vg_DebugExtraMsg, \
format, ##args)
#endif // __PUB_TOOL_LIBCPRINT_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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