[PATCH 0/1] MR6918: ntdll: Implement NtGetCurrentProcessorNumber for macOS on x86_64.

[Marc-Aurel Zent (＠mzent)]

Taken and slightly adapted from https://github.com/apple-oss-distributions/xnu/blob/8d741a5de7ff4191bf97d57b... .

The arm and arm64 implementations are not stable across kernel releases (yet). This works as expected under Rosetta 2 as well.

[PATCH 1/1] ntdll: Implement NtGetCurrentProcessorNumber for macOS on x86_64.

[Marc-Aurel Zent]

From: Marc-Aurel Zent

See _os_cpu_number at xnu/libsyscall/os/tsd.h.
The arm and arm64 implementations are not stable across kernel releases (yet).
---
 dlls/ntdll/unix/thread.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/ntdll/unix/thread.c b/dlls/ntdll/unix/thread.c
index a7114825118..5eaf3bf85b8 100644
--- a/dlls/ntdll/unix/thread.c
+++ b/dlls/ntdll/unix/thread.c
@@ -2563,6 +2563,12 @@ ULONG WINAPI NtGetCurrentProcessorNumber(void)
 #if defined(__linux__) && defined(__NR_getcpu)
     int res = syscall(__NR_getcpu, &processor, NULL, NULL);
     if (res != -1) return processor;
+#elif defined(__APPLE__) && (defined(__x86_64__) || defined(__i386__))
+    struct {
+        unsigned long p1, p2;
+    } p;
+    __asm__ __volatile__("sidt %[p]" : [p] "=&m"(p));
+    return (ULONG)(p.p1 & 0xfff);
 #endif

if (peb->NumberOfProcessors > 1)

[PATCH 1/1] ntdll: Implement NtGetCurrentProcessorNumber for macOS on x86_64.

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=150043

Your paranoid android.

=== debian11b (64 bit WoW report) ===

winmm:
mci: Timeout

Report validation errors:
msvcrt:string crashed (fffffd25)