From 5ca156cfde0f3821f15988619e51cf3cda99aaa6 Mon Sep 17 00:00:00 2001 From: Justin Hibbits Date: Wed, 21 Aug 2019 10:25:46 +0200 Subject: [PATCH] Fix cacheline detection on FreeBSD/powerpc. machdep.cacheline_size is an integer, not a long. Since PowerPC is big-endian this causes sysctlbyname() to fill in the upper bits of the argument, rather than the correct 'lower bits' of the word. Specify the correct type to fix this. Fixes: b255b2c8a548 ("util: add cacheinfo") Signed-off-by: Justin Hibbits Signed-off-by: Laurent Vivier Tested-by: Justin Hibbits Message-Id: <20190821082546.5252-2-laurent@vivier.eu> --- util/cacheinfo.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/util/cacheinfo.c b/util/cacheinfo.c index eebe1ce9c5..ea6f3e99bf 100644 --- a/util/cacheinfo.c +++ b/util/cacheinfo.c @@ -65,25 +65,28 @@ static void sys_cache_info(int *isize, int *dsize) g_free(buf); } -#elif defined(__APPLE__) \ - || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +#elif defined(__APPLE__) # include -# if defined(__APPLE__) -# define SYSCTL_CACHELINE_NAME "hw.cachelinesize" -# else -# define SYSCTL_CACHELINE_NAME "machdep.cacheline_size" -# endif - static void sys_cache_info(int *isize, int *dsize) { /* There's only a single sysctl for both I/D cache line sizes. */ long size; size_t len = sizeof(size); - if (!sysctlbyname(SYSCTL_CACHELINE_NAME, &size, &len, NULL, 0)) { + if (!sysctlbyname("hw.cachelinesize", &size, &len, NULL, 0)) { + *isize = *dsize = size; + } +} +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +# include +static void sys_cache_info(int *isize, int *dsize) +{ + /* There's only a single sysctl for both I/D cache line sizes. */ + int size; + size_t len = sizeof(size); + if (!sysctlbyname("machdep.cacheline_size", &size, &len, NULL, 0)) { *isize = *dsize = size; } } - #else /* POSIX */