>From cpuinfo library:
#if defined(__ANDROID__) && !defined(CPU_SETSIZE)
/*
* Android NDK headers before platform 21 do not define CPU_SETSIZE,
* so we hard-code its value, as defined in platform 21 headers
*/
#if defined(__LP64__)
static const uint32_t default_max_processors_count = 1024;
#else
static const uint32_t default_max_processors_count = 32;
#endif
#else
static const uint32_t default_max_processors_count = CPU_SETSIZE;
#endif
AND
#if !defined(__ANDROID__)
/*
* sched.h is only used for CPU_SETSIZE constant.
* Android NDK headers before platform 21 do have this constant in sched.h
*/
#include <sched.h>
#endif
and resolving includes, it gets CPU_SETSIZE (_CPU_SETSIZE) from:
x86_64-linux-gnu/bits/cpu-set.h:
/* Size definition for CPU sets. */
#define __CPU_SETSIZE 1024
#define __NCPUBITS (8 * sizeof (__cpu_mask))
And that leads to:
uint32_t cpuinfo_linux_get_max_processors_count(void) {
...
cpuinfo_log_warning("using platform-default max processors count =
%"PRIu32, default_max_processors_count);
...
}
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https://bugs.launchpad.net/bugs/1840511
Title:
Eoan FTBFS with gcc-9 and MySQL 8
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