[dpdk-dev] [PATCH] ppc64le: fix build with Clang and without glibc
David Christensen
drc at linux.vnet.ibm.com
Fri May 7 22:28:55 CEST 2021
On 5/5/21 3:39 PM, Piotr Kubaj wrote:
> diff --git a/lib/librte_eal/ppc/include/rte_altivec.h b/lib/librte_eal/ppc/include/rte_altivec.h
> index 1551a9454..3fcc819c1 100644
> --- a/lib/librte_eal/ppc/include/rte_altivec.h
> +++ b/lib/librte_eal/ppc/include/rte_altivec.h
> @@ -7,6 +7,9 @@
> #define_RTE_ALTIVEC_H_
>
> /* To include altivec.h, GCC version must be >= 4.8 */
> +#ifdef __clang__
> +#define vector __vector
> +#endif
> #include <altivec.h>
>
> /*
> diff --git a/lib/librte_eal/ppc/include/rte_cycles.h b/lib/librte_eal/ppc/include/rte_cycles.h
> index 5585f9273..a8307ceaf 100644
> --- a/lib/librte_eal/ppc/include/rte_cycles.h
> +++ b/lib/librte_eal/ppc/include/rte_cycles.h
> @@ -10,7 +10,13 @@
> extern "C" {
> #endif
>
> +#ifdef linux
> +#include <features.h>
> +#endif
> +
> +#ifdef __GLIBC__
> #include <sys/platform/ppc.h>
> +#endif
>
> #include "generic/rte_cycles.h"
>
> @@ -26,7 +32,13 @@ extern "C" {
> static inline uint64_t
> rte_rdtsc(void)
> {
> +#ifdef __GLIBC__
> return __ppc_get_timebase();
> +#else
> + uint64_t __tb;
> + __asm__ volatile ("mfspr %0, 268" : "=r" (__tb));
> + return __tb;
> +#endif
> }
>
> static inline uint64_t
> diff --git a/lib/librte_eal/ppc/rte_cycles.c b/lib/librte_eal/ppc/rte_cycles.c
> index 3180adb0f..48545c4d6 100644
> --- a/lib/librte_eal/ppc/rte_cycles.c
> +++ b/lib/librte_eal/ppc/rte_cycles.c
> @@ -2,12 +2,28 @@
> * Copyright (C) IBM Corporation 2019.
> */
>
> +#ifdef linux
> +#include <features.h>
> +#elif defined(__FreeBSD__)
> +#include <sys/types.h>
> +#include <sys/sysctl.h>
> +#endif
> +
> +#ifdef __GLIBC__
> #include <sys/platform/ppc.h>
> +#endif
>
> #include "eal_private.h"
>
> uint64_t
> get_tsc_freq_arch(void)
> {
> +#ifdef __GLIBC__
> return __ppc_get_timebase_freq();
> +#elif defined(__FreeBSD__)
> + uint64_t freq;
> + size_t length = sizeof(freq);
> + sysctlbyname("kern.timecounter.tc.timebase.frequency", &freq, &length, NULL, 0);
> + return freq;
> +#endif
> }
> --
> 2.31.0
Reviewed-by: David Christensen <drc at linux.vnet.ibm.com>
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