diff options
Diffstat (limited to 'meta-oe/recipes-dbs/rocksdb/files/0001-folly-Use-SYS_futex-for-syscall.patch')
| -rw-r--r-- | meta-oe/recipes-dbs/rocksdb/files/0001-folly-Use-SYS_futex-for-syscall.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-oe/recipes-dbs/rocksdb/files/0001-folly-Use-SYS_futex-for-syscall.patch b/meta-oe/recipes-dbs/rocksdb/files/0001-folly-Use-SYS_futex-for-syscall.patch new file mode 100644 index 0000000000..aa291daa3e --- /dev/null +++ b/meta-oe/recipes-dbs/rocksdb/files/0001-folly-Use-SYS_futex-for-syscall.patch @@ -0,0 +1,47 @@ +From ddcc8a9f7e0f0bfee96f2f0a0c10f21f9fa9b05d Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Sun, 15 Nov 2020 15:02:28 -0800 +Subject: [PATCH] folly: Use SYS_futex for syscall + +glibc defines SYS_futex and on newer 32bit CPUs like RISCV-32, arc there +is no 32bit time_t therefore define SYS_futex in terms of SYS_futex_time64 + +Upstream-Status: Submitted [https://github.com/facebook/rocksdb/pull/7676] +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + third-party/folly/folly/detail/Futex.cpp | 10 ++++++++-- + 1 file changed, 8 insertions(+), 2 deletions(-) + +diff --git a/third-party/folly/folly/detail/Futex.cpp b/third-party/folly/folly/detail/Futex.cpp +index 62d6ea2b2..a914a8c73 100644 +--- a/third-party/folly/folly/detail/Futex.cpp ++++ b/third-party/folly/folly/detail/Futex.cpp +@@ -48,9 +48,15 @@ namespace { + #define FUTEX_CLOCK_REALTIME 256 + #endif + ++/// Newer 32bit CPUs eg. RISCV-32 are defaulting to 64bit time_t from get go and ++/// therefore do not define __NR_futex ++#if !defined(SYS_futex) && defined(SYS_futex_time64) ++# define SYS_futex SYS_futex_time64 ++#endif ++ + int nativeFutexWake(const void* addr, int count, uint32_t wakeMask) { + long rv = syscall( +- __NR_futex, ++ SYS_futex, + addr, /* addr1 */ + FUTEX_WAKE_BITSET | FUTEX_PRIVATE_FLAG, /* op */ + count, /* val */ +@@ -112,7 +118,7 @@ FutexResult nativeFutexWaitImpl( + // Unlike FUTEX_WAIT, FUTEX_WAIT_BITSET requires an absolute timeout + // value - http://locklessinc.com/articles/futex_cheat_sheet/ + long rv = syscall( +- __NR_futex, ++ SYS_futex, + addr, /* addr1 */ + op, /* op */ + expected, /* val */ +-- +2.29.2 + |