Paul Gofman : ntdll: Allocate crit section debug info by default for Windows versions before 8.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3c0e318582f1b3058ab3fc8f858f6a0edacc59ad
URL:    https://gitlab.winehq.org/wine/wine/-/commit/3c0e318582f1b3058ab3fc8f858f6a0...

Author: Paul Gofman 
Date:   Mon May 13 12:46:40 2024 -0600

ntdll: Allocate crit section debug info by default for Windows versions before 8.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56661

---

dlls/ntdll/sync.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/sync.c b/dlls/ntdll/sync.c
index efc820624bb..274e29d1852 100644
--- a/dlls/ntdll/sync.c
+++ b/dlls/ntdll/sync.c
@@ -187,12 +187,19 @@ static inline NTSTATUS wait_semaphore( RTL_CRITICAL_SECTION *crit, int timeout )
     }
 }

+static ULONG crit_sect_default_flags(void)
+{
+    if (NtCurrentTeb()->Peb->OSMajorVersion > 6 ||
+        (NtCurrentTeb()->Peb->OSMajorVersion == 6 && NtCurrentTeb()->Peb->OSMinorVersion >= 2)) return 0;
+    return RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO;
+}
+
 /******************************************************************************
  *      RtlInitializeCriticalSection   (NTDLL.@)
  */
 NTSTATUS WINAPI RtlInitializeCriticalSection( RTL_CRITICAL_SECTION *crit )
 {
-    return RtlInitializeCriticalSectionEx( crit, 0, 0 );
+    return RtlInitializeCriticalSectionEx( crit, 0, crit_sect_default_flags() );
 }

@@ -201,7 +208,7 @@ NTSTATUS WINAPI RtlInitializeCriticalSection( RTL_CRITICAL_SECTION *crit )
  */
 NTSTATUS WINAPI RtlInitializeCriticalSectionAndSpinCount( RTL_CRITICAL_SECTION *crit, ULONG spincount )
 {
-    return RtlInitializeCriticalSectionEx( crit, spincount, 0 );
+    return RtlInitializeCriticalSectionEx( crit, spincount, crit_sect_default_flags() );
 }