From: Mike Gilbert floppym@gentoo.org
[ Upstream commit 2de7fb60a4740135e03cf55c1982e393ccb87b6b ]
Building cpupower with -fno-common in CFLAGS results in errors due to multiple definitions of the 'cpu_count' and 'start_time' variables.
./utils/idle_monitor/snb_idle.o:./utils/idle_monitor/cpupower-monitor.h:28: multiple definition of `cpu_count'; ./utils/idle_monitor/nhm_idle.o:./utils/idle_monitor/cpupower-monitor.h:28: first defined here ... ./utils/idle_monitor/cpuidle_sysfs.o:./utils/idle_monitor/cpuidle_sysfs.c:22: multiple definition of `start_time'; ./utils/idle_monitor/amd_fam14h_idle.o:./utils/idle_monitor/amd_fam14h_idle.c:85: first defined here
The -fno-common option will be enabled by default in GCC 10.
Bug: https://bugs.gentoo.org/707462 Signed-off-by: Mike Gilbert floppym@gentoo.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c | 2 +- tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c | 2 +- tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c | 2 ++ tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h | 2 +- 4 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c b/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c index 33dc34db4f3cc..20f46348271b1 100644 --- a/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c @@ -82,7 +82,7 @@ static struct pci_access *pci_acc; static struct pci_dev *amd_fam14h_pci_dev; static int nbp1_entered;
-struct timespec start_time; +static struct timespec start_time; static unsigned long long timediff;
#ifdef DEBUG diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c index 3c4cee160b0e6..a65f7d011513a 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c +++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c @@ -19,7 +19,7 @@ struct cpuidle_monitor cpuidle_sysfs_monitor;
static unsigned long long **previous_count; static unsigned long long **current_count; -struct timespec start_time; +static struct timespec start_time; static unsigned long long timediff;
static int cpuidle_get_count_percent(unsigned int id, double *percent, diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c index 6d44fec55ad5a..7c77045fef52f 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c @@ -27,6 +27,8 @@ struct cpuidle_monitor *all_monitors[] = { 0 };
+int cpu_count; + static struct cpuidle_monitor *monitors[MONITORS_MAX]; static unsigned int avail_monitors;
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h index 5b5eb1da0cce3..c559d3115330a 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h @@ -25,7 +25,7 @@ #endif #define CSTATE_DESC_LEN 60
-int cpu_count; +extern int cpu_count;
/* Hard to define the right names ...: */ enum power_range_e {