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975f14fa8f
Adding support for warning/info/debug output within libapi code. Adding
following macros:
pr_warning(fmt, ...)
pr_info(fmt, ...)
pr_debug(fmt, ...)
Also adding libapi_set_print function to set above functions. This will
be used in perf to set standard debug handlers for libapi.
Adding 2 header files:
debug.h
- to be used outside libapi, contains
libapi_set_print interface
debug-internal.h
- to be used within libapi, contains
pr_warning/pr_info/pr_debug definitions
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1455465826-8426-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
21 lines
546 B
C
21 lines
546 B
C
#ifndef __API_DEBUG_INTERNAL_H__
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#define __API_DEBUG_INTERNAL_H__
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#include "debug.h"
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#define __pr(func, fmt, ...) \
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do { \
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if ((func)) \
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(func)("libapi: " fmt, ##__VA_ARGS__); \
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} while (0)
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extern libapi_print_fn_t __pr_warning;
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extern libapi_print_fn_t __pr_info;
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extern libapi_print_fn_t __pr_debug;
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#define pr_warning(fmt, ...) __pr(__pr_warning, fmt, ##__VA_ARGS__)
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#define pr_info(fmt, ...) __pr(__pr_info, fmt, ##__VA_ARGS__)
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#define pr_debug(fmt, ...) __pr(__pr_debug, fmt, ##__VA_ARGS__)
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#endif /* __API_DEBUG_INTERNAL_H__ */
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