From 3fa0b027304ec28cd24b314349d3731b55dfcc0a Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 27 Mar 2018 15:20:51 +0100 Subject: overlay: Call setlocale around strtod strtod() is locale-dependent. The decimal conversion depends on the radix character ('.' for some of us like myself) varies by locale. As the kernel reports its values using the "C" locale, we need to switch to that when parsing; and switch back before reporting to the user. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105712 Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Reviewed-by: Tvrtko Ursulin --- overlay/power.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'overlay') diff --git a/overlay/power.c b/overlay/power.c index 9ac90fde..0f99e2a4 100644 --- a/overlay/power.c +++ b/overlay/power.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include "igt_perf.h" @@ -97,12 +98,18 @@ static uint64_t rapl_gpu_power(void) static double filename_to_double(const char *filename) { - char buf[64]; + char *oldlocale; + char buf[80]; + double v; if (filename_to_buf(filename, buf, sizeof(buf))) return 0; - return strtod(buf, NULL); + oldlocale = setlocale(LC_ALL, "C"); + v = strtod(buf, NULL); + setlocale(LC_ALL, oldlocale); + + return v; } static double rapl_gpu_power_scale(void) -- cgit v1.2.3