From d183b2df67b35464a41273ed9cd1f2d45c661a59 Mon Sep 17 00:00:00 2001 From: Philippe Proulx Date: Wed, 6 Apr 2016 23:46:08 -0400 Subject: [PATCH] Add extra/barectf-tracepoint.h (tracepoint() macro wrapper) Signed-off-by: Philippe Proulx --- extra/barectf-tracepoint.h | 70 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 extra/barectf-tracepoint.h diff --git a/extra/barectf-tracepoint.h b/extra/barectf-tracepoint.h new file mode 100644 index 0000000..fb49a70 --- /dev/null +++ b/extra/barectf-tracepoint.h @@ -0,0 +1,70 @@ +#ifndef _BARECTF_TRACEPOINT_H +#define _BARECTF_TRACEPOINT_H + +/* + * The MIT License (MIT) + * + * Copyright (c) 2016 Philippe Proulx + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +/* get prefix */ +#ifdef BARECTF_TRACEPOINT_PREFIX +# define _BARECTF_TRACEPOINT_PREFIX BARECTF_TRACEPOINT_PREFIX +#else +# ifdef _BARECTF_PREFIX +# define _BARECTF_TRACEPOINT_PREFIX _BARECTF_PREFIX +# else +# error You need to define BARECTF_TRACEPOINT_PREFIX in order to use this header. +# endif +#endif + +/* get stream name to use */ +#ifdef BARECTF_TRACEPOINT_STREAM +# define _BARECTF_TRACEPOINT_STREAM BARECTF_TRACEPOINT_STREAM +#else +# ifdef _BARECTF_DEFAULT_STREAM +# define _BARECTF_TRACEPOINT_STREAM _BARECTF_DEFAULT_STREAM +# else +# error You need to define BARECTF_TRACEPOINT_STREAM in order to use this header. +# endif +#endif + +/* get context to use */ +#ifndef BARECTF_TRACEPOINT_CTX +# error You need to define BARECTF_TRACEPOINT_CTX in order to use this header. +#endif + +/* + * Combines 6 token. Inspired by __TP_COMBINE_TOKENS4() in + * . See sections 6.10.3 and 6.10.3.1 of + * ISO/IEC 9899:1999. + */ +#define __COMBINE_TOKENS6(_a, _b, _c, _d, _e, _f) \ + _a ## _b ## _c ## _d ## _e ## _f +#define _COMBINE_TOKENS6(_a, _b, _c, _d, _e, _f) \ + __COMBINE_TOKENS6(_a, _b, _c, _d, _e, _f) + +/* tracepoint() used by the user */ +#undef tracepoint +#define tracepoint(_prov_name, _tp_name, ...) \ + _COMBINE_TOKENS6(_BARECTF_TRACEPOINT_PREFIX, _BARECTF_TRACEPOINT_STREAM, _trace_, _prov_name, _, _tp_name)(BARECTF_TRACEPOINT_CTX, ##__VA_ARGS__) + +#endif /* _BARECTF_TRACEPOINT_H */ -- 2.34.1