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| author | Louis Dionne <ldionne.2@gmail.com> | 2021-02-03 17:00:20 -0500 |
|---|---|---|
| committer | Louis Dionne <ldionne.2@gmail.com> | 2021-02-08 13:49:02 -0500 |
| commit | 251f3295b498b699aa2b926167a788a6b6dbc033 (patch) | |
| tree | 2d8e08cf962eafc4111fd936539427bf6542df26 | |
| parent | bc39d53d9a4f1ed7c903648f3fd408296fd55c95 (diff) | |
| download | llvm-251f3295b498b699aa2b926167a788a6b6dbc033.tar.gz | |
[🍒][libc++] Fix libcxx build on 32bit architectures with 64bit time_t defaults e.g. riscv32
Patch by Khem Raj.
(cherry pick of commit 85b9c5ccc172a1e61c7ecaaec4752587cb6f1e26)
Differential Revision: https://reviews.llvm.org/D96062
| -rw-r--r-- | libcxx/src/atomic.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libcxx/src/atomic.cpp b/libcxx/src/atomic.cpp index 6b73ed771cd1..9ae1fb5199bf 100644 --- a/libcxx/src/atomic.cpp +++ b/libcxx/src/atomic.cpp @@ -19,6 +19,12 @@ #include <linux/futex.h> #include <sys/syscall.h> +// libc++ uses SYS_futex as a universal syscall name. However, on 32 bit architectures +// with a 64 bit time_t, we need to specify SYS_futex_time64. +#if !defined(SYS_futex) && defined(SYS_futex_time64) +# define SYS_futex SYS_futex_time64 +#endif + #else // <- Add other operating systems here // Baseline needs no new headers |