pthread_mutex functions such as pthread_cond_wait(), pthread_mutex_unlock() return errors after PTHREAD_PRIO_INHERIT is enabled If PTHREAD_PRIO_INHERIT is not enabled, no errors occur.
Build WRL9 image and SDK installer $ wrlinux-9/setup.sh --machines bcm-587xx $ . environment-setup-x86_64-wrlinuxsdk-linux $ . oe-init-build-env build $ vi conf/local.conf --- changes from default --- BB_NO_NETWORK ?= '0' LINUX_KERNEL_TYPE ?= "preempt-rt" --- $ bitbake lib32-wrlinux-image-glibc-std $ bitbake -c populate_sdk lib32-wrlinux-image-glibc-std Build pthread-test $ . <sdk path>/environment-setup-armv7ahf-neon-wrsmllib32-linux-gnueabi $ $CC test.c -o pthread-test -lpthread Steps on to bcm-587xx Change settng on boot SD copy /dev/mmcblk0p1 (ext2) uImage, uImage-ns2-svk.dtb unzip /dev/mmcblk0p2 (ext4) lib32-wrlinux-image-glibc-std-bcm-587xx.tar.bz2 and copy pthread-test to root/ After u-boot is up u-boot> setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait u-boot> mmc rescan u-boot> load mmc 0 0x90000000 uImage u-boot> load mmc 0 0x88000000 uImage-ns2-svk.dtb u-boot> bootm 0x90000000 - 0x88000000 Run test as below * Running with or without PTHREAD_PRIO_INHERIT on OK Case root@bcm-587xx:~# ./pthread-test [MUTEX] Normal Mutex test value=10 test value=9 ... NG Case root@bcm-587xx:~# ./pthread-test 1 [MUTEX] Inherit Enabled [wait] pthread_mutex_unlock failed ret=1 test value=10 test value=9 [notify] pthread_mutex_unlock failed ret=1 [unlock] pthread_mutex_unlock failed ret = 1 [lock] mutex_unlock failed ret=1 test value=8 ... 4. Environment ran on wrlinux-9 BCM857xx BSP + BCM857xx Reference board ------
