![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
The tools so far have been using the strerror_r() GNU variant, that returns a string, be it the buffer passed or something else. But that, besides being tricky in cases where we expect that the function using strerror_r() returns the error formatted in a provided buffer (we have to check if it returned something else and copy that instead), breaks the build on systems not using glibc, like Alpine Linux, where musl libc is used. So, introduce yet another wrapper, str_error_r(), that has the GNU interface, but uses the portable XSI variant of strerror_r(), so that users rest asured that the provided buffer is used and it is what is returned. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-d4t42fnf48ytlk8rjxs822tf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
59 lines
2 KiB
C
59 lines
2 KiB
C
/* For debugging general purposes */
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#ifndef __PERF_DEBUG_H
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#define __PERF_DEBUG_H
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#include <stdbool.h>
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#include <string.h>
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#include "event.h"
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#include "../ui/helpline.h"
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#include "../ui/progress.h"
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#include "../ui/util.h"
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extern int verbose;
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extern bool quiet, dump_trace;
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extern int debug_ordered_events;
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extern int debug_data_convert;
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#ifndef pr_fmt
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#define pr_fmt(fmt) fmt
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#endif
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#define pr_err(fmt, ...) \
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eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_warning(fmt, ...) \
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eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_info(fmt, ...) \
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eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_debug(fmt, ...) \
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eprintf(1, verbose, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_debugN(n, fmt, ...) \
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eprintf(n, verbose, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_time_N(n, var, t, fmt, ...) \
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eprintf_time(n, var, t, fmt, ##__VA_ARGS__)
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#define pr_oe_time(t, fmt, ...) pr_time_N(1, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
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#define pr_oe_time2(t, fmt, ...) pr_time_N(2, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
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#define STRERR_BUFSIZE 128 /* For the buffer size of str_error_r */
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int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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void trace_event(union perf_event *event);
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int ui__error(const char *format, ...) __attribute__((format(printf, 1, 2)));
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int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
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void pr_stat(const char *fmt, ...);
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int eprintf(int level, int var, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
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int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __attribute__((format(printf, 4, 5)));
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int veprintf(int level, int var, const char *fmt, va_list args);
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int perf_debug_option(const char *str);
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void perf_debug_setup(void);
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#endif /* __PERF_DEBUG_H */
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