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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>
29 lines
557 B
C
29 lines
557 B
C
#include <stdio.h>
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#include <stdarg.h>
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#include "debug.h"
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#include "debug-internal.h"
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static int __base_pr(const char *format, ...)
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{
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va_list args;
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int err;
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va_start(args, format);
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err = vfprintf(stderr, format, args);
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va_end(args);
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return err;
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}
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libapi_print_fn_t __pr_warning = __base_pr;
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libapi_print_fn_t __pr_info = __base_pr;
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libapi_print_fn_t __pr_debug;
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void libapi_set_print(libapi_print_fn_t warn,
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libapi_print_fn_t info,
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libapi_print_fn_t debug)
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{
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__pr_warning = warn;
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__pr_info = info;
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__pr_debug = debug;
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}
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