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play a bit with the ARM PMU

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Ciro Santilli 六四事件 法轮功
2020-11-18 00:00:00 +00:00
parent 95430c7c0c
commit d4a27987d6
7 changed files with 142 additions and 22 deletions
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6
lkmc.h
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@@ -34,6 +34,12 @@ void lkmc_assert_memcmp(const void *s1, const void *s2, size_t n, uint32_t line)
/* Temporary per C source file name that our examples can safely create. */
#define LKMC_TMP_FILE __FILE__ LKMC_TMP_EXT
#define LKMC_TMP_FILE_NAMED(name) __FILE__ "__" name LKMC_TMP_EXT
/* https://cirosantilli.com/linux-kernel-module-cheat#c-busy-loop */
void __attribute__ ((noinline)) lkmc_busy_loop(
unsigned long long max,
unsigned long long max2
);
#endif
/* Assert that the given branch instruction is taken. */