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RISC-V: don't assume PI mutexes and robust futexes before 4.20 (bug 23864)

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Support for futex_cmpxchg as only been added to 4.20-rc1.
This commit is contained in:
Andreas Schwab
2018-11-06 09:23:02 +01:00
parent e143ceba56
commit 295132ff05
2 changed files with 12 additions and 0 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2018-11-07 Andreas Schwab <schwab@suse.de>
[BZ #23864]
* sysdeps/unix/sysv/linux/riscv/kernel-features.h
(__ASSUME_SET_ROBUST_LIST) [__LINUX_KERNEL_VERSION < 0x041400]:
Undef.
2018-11-06 Joseph Myers <joseph@codesourcery.com> 2018-11-06 Joseph Myers <joseph@codesourcery.com>
[BZ #23862] [BZ #23862]

5
sysdeps/unix/sysv/linux/riscv/kernel-features.h
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@ -21,3 +21,8 @@
#undef __ASSUME_CLONE_DEFAULT #undef __ASSUME_CLONE_DEFAULT
#define __ASSUME_CLONE_BACKWARDS 1 #define __ASSUME_CLONE_BACKWARDS 1
/* No support for PI mutexes or robust futexes before 4.20. */
#if __LINUX_KERNEL_VERSION < 0x041400
# undef __ASSUME_SET_ROBUST_LIST
#endif