716c69feca
On architectures/CPUs without PMU support but with perfcounters enabled 'perf top' currently fails because it cannot create a cycle based hw-perfcounter. Fall back to the cpu-clock-tick sw-perfcounter in this case, which is hrtimer based and will always work (as long as perfcounters is enabled). Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "util.h"
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static void report(const char *prefix, const char *err, va_list params)
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{
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char msg[1024];
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vsnprintf(msg, sizeof(msg), err, params);
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fprintf(stderr, " %s%s\n", prefix, msg);
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}
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static NORETURN void usage_builtin(const char *err)
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{
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fprintf(stderr, "\n Usage: %s\n", err);
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exit(129);
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}
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static NORETURN void die_builtin(const char *err, va_list params)
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{
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report(" Fatal: ", err, params);
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exit(128);
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}
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static void error_builtin(const char *err, va_list params)
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{
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report(" Error: ", err, params);
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}
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static void warn_builtin(const char *warn, va_list params)
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{
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report(" Warning: ", warn, params);
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}
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/* If we are in a dlopen()ed .so write to a global variable would segfault
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* (ugh), so keep things static. */
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static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
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static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
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static void (*error_routine)(const char *err, va_list params) = error_builtin;
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static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
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void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
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{
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die_routine = routine;
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}
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void usage(const char *err)
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{
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usage_routine(err);
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}
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void die(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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die_routine(err, params);
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va_end(params);
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}
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int error(const char *err, ...)
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{
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va_list params;
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va_start(params, err);
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error_routine(err, params);
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va_end(params);
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return -1;
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}
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void warning(const char *warn, ...)
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{
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va_list params;
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va_start(params, warn);
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warn_routine(warn, params);
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va_end(params);
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}
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