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| author | Tomohiro Kashiwada <kikairoya@gmail.com> | 2025-06-24 23:18:28 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-06-24 17:18:28 +0300 |
| commit | bd96918f01cfd7642a20a4a5bb0e7d10ad7f2360 (patch) | |
| tree | d2c2ae95c2f69c7c67d1938a95da23efc9eb52cb /llvm/lib/Support/Unix/Threading.inc | |
| parent | 7a4b3925598c07f5b4523a701ba6c34e483078d6 (diff) | |
| download | llvm-bd96918f01cfd7642a20a4a5bb0e7d10ad7f2360.zip llvm-bd96918f01cfd7642a20a4a5bb0e7d10ad7f2360.tar.gz llvm-bd96918f01cfd7642a20a4a5bb0e7d10ad7f2360.tar.bz2 | |
[LLVM][Support][Cygwin] Add threading support for Cygwin host (#145314)
Cygwin environment has pthread functionality but LLVM integration
doesn't care it nor provide fallback.
Using Linux integration for Cygwin works fine.
Diffstat (limited to 'llvm/lib/Support/Unix/Threading.inc')
| -rw-r--r-- | llvm/lib/Support/Unix/Threading.inc | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/llvm/lib/Support/Unix/Threading.inc b/llvm/lib/Support/Unix/Threading.inc index 562971a..7854d6d 100644 --- a/llvm/lib/Support/Unix/Threading.inc +++ b/llvm/lib/Support/Unix/Threading.inc @@ -62,6 +62,10 @@ #include <unistd.h> // For syscall() #endif +#if defined(__CYGWIN__) +#include <sys/cpuset.h> +#endif + #if defined(__HAIKU__) #include <OS.h> // For B_OS_NAME_LENGTH #endif @@ -165,6 +169,8 @@ static constexpr uint32_t get_max_thread_name_length_impl() { return 16; #elif defined(__OpenBSD__) return 24; +#elif defined(__CYGWIN__) + return 16; #else return 0; #endif @@ -241,7 +247,7 @@ void llvm::get_thread_name(SmallVectorImpl<char> &Name) { } free(kp); return; -#elif defined(__linux__) && HAVE_PTHREAD_GETNAME_NP +#elif (defined(__linux__) || defined(__CYGWIN__)) && HAVE_PTHREAD_GETNAME_NP constexpr uint32_t len = get_max_thread_name_length_impl(); char Buffer[len] = {'\0'}; // FIXME: working around MSan false positive. if (0 == ::pthread_getname_np(::pthread_self(), Buffer, len)) @@ -263,7 +269,7 @@ void llvm::get_thread_name(SmallVectorImpl<char> &Name) { } SetThreadPriorityResult llvm::set_thread_priority(ThreadPriority Priority) { -#if defined(__linux__) && defined(SCHED_IDLE) +#if (defined(__linux__) || defined(__CYGWIN__)) && defined(SCHED_IDLE) // Some *really* old glibcs are missing SCHED_IDLE. // http://man7.org/linux/man-pages/man3/pthread_setschedparam.3.html // http://man7.org/linux/man-pages/man2/sched_setscheduler.2.html @@ -316,7 +322,7 @@ static int computeHostNumHardwareThreads() { if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask), &mask) == 0) return CPU_COUNT(&mask); -#elif defined(__linux__) +#elif (defined(__linux__) || defined(__CYGWIN__)) cpu_set_t Set; CPU_ZERO(&Set); if (sched_getaffinity(0, sizeof(Set), &Set) == 0) @@ -338,7 +344,8 @@ llvm::BitVector llvm::get_thread_affinity_mask() { unsigned llvm::get_cpus() { return 1; } -#if defined(__linux__) && (defined(__i386__) || defined(__x86_64__)) +#if (defined(__linux__) || defined(__CYGWIN__)) && \ + (defined(__i386__) || defined(__x86_64__)) // On Linux, the number of physical cores can be computed from /proc/cpuinfo, // using the number of unique physical/core id pairs. The following // implementation reads the /proc/cpuinfo format on an x86_64 system. |