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authorMike Frysinger <vapier@gentoo.org>2015-08-14 22:09:30 -0400
committerMike Frysinger <vapier@gentoo.org>2015-08-18 02:36:43 -0400
commit8584204806ffea6f33bc6e42a1f07d6bc5a35105 (patch)
treef29001bce4c6064f9718ff54c921c041cb0b29f5 /sysdeps/unix/sysv/linux/hppa
parent43329fe1396080faf025118b31053fd19e029c12 (diff)
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hppa: drop __ASSUME_LWS_CAS define
We require recent enough kernels for this now, and we've been hardcoding
it to 1, so drop it entirely now.
Diffstat (limited to 'sysdeps/unix/sysv/linux/hppa')
-rw-r--r--sysdeps/unix/sysv/linux/hppa/bits/atomic.h10
-rw-r--r--sysdeps/unix/sysv/linux/hppa/kernel-features.h3
2 files changed, 2 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/atomic.h b/sysdeps/unix/sysv/linux/hppa/bits/atomic.h
index 6e73504fee..26b66c5134 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/atomic.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/atomic.h
@@ -18,7 +18,6 @@
 
 #include <stdint.h> /*  Required for type definitions e.g. uint8_t.  */
 #include <abort-instr.h> /*  Required for ABORT_INSTRUCTIUON.  */
-#include <kernel-features.h> /*  Required for __ASSUME_LWS_CAS.  */
 
 /* We need EFAULT, ENONSYS */
 #if !defined EFAULT && !defined ENOSYS
@@ -62,10 +61,9 @@ typedef uintmax_t uatomic_max_t;
 /* String constant for -EDEADLOCK.  */
 #define _ASM_EDEADLOCK "-45"
 
-#if __ASSUME_LWS_CAS
 /* The only basic operation needed is compare and exchange.  The mem
    pointer must be word aligned.  */
-# define atomic_compare_and_exchange_val_acq(mem, newval, oldval)	\
+#define atomic_compare_and_exchange_val_acq(mem, newval, oldval)	\
   ({									\
      register long lws_errno asm("r21");				\
      register unsigned long lws_ret asm("r28");				\
@@ -93,17 +91,13 @@ typedef uintmax_t uatomic_max_t;
      (__typeof (oldval)) lws_ret;					\
    })
 
-# define atomic_compare_and_exchange_bool_acq(mem, newval, oldval)	\
+#define atomic_compare_and_exchange_bool_acq(mem, newval, oldval)	\
   ({									\
      __typeof__ (*mem) ret;						\
      ret = atomic_compare_and_exchange_val_acq(mem, newval, oldval);	\
      /* Return 1 if it was already acquired.  */			\
      (ret != oldval);							\
    })
-#else
-# error __ASSUME_LWS_CAS is required to build glibc.
-#endif
-/* __ASSUME_LWS_CAS */
 
 #endif
 /* _BITS_ATOMIC_H */
diff --git a/sysdeps/unix/sysv/linux/hppa/kernel-features.h b/sysdeps/unix/sysv/linux/hppa/kernel-features.h
index 61bb026e09..274345ad0c 100644
--- a/sysdeps/unix/sysv/linux/hppa/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/hppa/kernel-features.h
@@ -18,9 +18,6 @@
    <http://www.gnu.org/licenses/>.  */
 
 
-/* PA-RISC 2.6.9 kernels had the first LWS CAS support */
-#define __ASSUME_LWS_CAS		1
-
 /* Support for the accept4 and recvmmsg syscalls was added in 2.6.34.  */
 #if __LINUX_KERNEL_VERSION >= 0x020622
 # define __ASSUME_ACCEPT4_SYSCALL	1