/usr/include/urcu/config.h is in liburcu-dev 0.9.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | /* urcu/config.h. Generated from config.h.in by configure. */
/* urcu/config.h.in. Manually generated for control over the contained defs. */
/* Defined when on a system that has memory fence instructions. */
#define CONFIG_RCU_HAVE_FENCE 1
/* Defined when on a system with futex support. */
#define CONFIG_RCU_HAVE_FUTEX 1
/* Enable SMP support. With SMP support enabled, uniprocessors are also
supported. With SMP support disabled, UP systems work fine, but the
behavior of SMP systems is undefined. */
#define CONFIG_RCU_SMP 1
/* Compatibility mode for i386 which lacks cmpxchg instruction. */
/* #undef CONFIG_RCU_COMPAT_ARCH */
/* Use the dmb instruction is available for use on ARM. */
/* #undef CONFIG_RCU_ARM_HAVE_DMB */
/* TLS provided by the compiler. */
#define CONFIG_RCU_TLS __thread
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