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/* mydtrace.h
*
* Copyright (C) 2008, 2010, 2011 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
* Provides macros that wrap the various DTrace probes we use. We add
* an extra level of wrapping to encapsulate the _ENABLED tests.
*/
#if defined(USE_DTRACE) && defined(PERL_CORE)
# include "perldtrace.h"
# if defined(STAP_PROBE_ADDR) && !defined(DEBUGGING)
/* SystemTap 1.2 uses a construct that chokes on passing a char array
* as a char *, in this case hek_key in struct hek. Workaround it
* with a temporary.
*/
# define ENTRY_PROBE(func, file, line, stash) \
if (PERL_SUB_ENTRY_ENABLED()) { \
const char *tmp_func = func; \
PERL_SUB_ENTRY(tmp_func, file, line, stash); \
}
# define RETURN_PROBE(func, file, line, stash) \
if (PERL_SUB_RETURN_ENABLED()) { \
const char *tmp_func = func; \
PERL_SUB_RETURN(tmp_func, file, line, stash); \
}
# define LOADING_FILE_PROBE(name) \
if (PERL_LOADING_FILE_ENABLED()) { \
const char *tmp_name = name; \
PERL_LOADING_FILE(tmp_name); \
}
# define LOADED_FILE_PROBE(name) \
if (PERL_LOADED_FILE_ENABLED()) { \
const char *tmp_name = name; \
PERL_LOADED_FILE(tmp_name); \
}
# else
# define ENTRY_PROBE(func, file, line, stash) \
if (PERL_SUB_ENTRY_ENABLED()) { \
PERL_SUB_ENTRY(func, file, line, stash); \
}
# define RETURN_PROBE(func, file, line, stash) \
if (PERL_SUB_RETURN_ENABLED()) { \
PERL_SUB_RETURN(func, file, line, stash); \
}
# define LOADING_FILE_PROBE(name) \
if (PERL_LOADING_FILE_ENABLED()) { \
PERL_LOADING_FILE(name); \
}
# define LOADED_FILE_PROBE(name) \
if (PERL_LOADED_FILE_ENABLED()) { \
PERL_LOADED_FILE(name); \
}
# endif
# define OP_ENTRY_PROBE(name) \
if (PERL_OP_ENTRY_ENABLED()) { \
PERL_OP_ENTRY(name); \
}
# define PHASE_CHANGE_PROBE(new_phase, old_phase) \
if (PERL_PHASE_CHANGE_ENABLED()) { \
PERL_PHASE_CHANGE(new_phase, old_phase); \
}
#else
/* NOPs */
# define ENTRY_PROBE(func, file, line, stash)
# define RETURN_PROBE(func, file, line, stash)
# define PHASE_CHANGE_PROBE(new_phase, old_phase)
# define OP_ENTRY_PROBE(name)
# define LOADING_FILE_PROBE(name)
# define LOADED_FILE_PROBE(name)
#endif
/*
* ex: set ts=8 sts=4 sw=4 et:
*/