Alexandre Julliard : ntdll: Export __chkstk_arm64ec().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d3722971efd2a8153b96ce5ac9e4c17ad37734fa
URL:    https://gitlab.winehq.org/wine/wine/-/commit/d3722971efd2a8153b96ce5ac9e4c17...

Author: Alexandre Julliard 
Date:   Tue Nov 14 20:08:34 2023 +0100

ntdll: Export __chkstk_arm64ec().

---

dlls/kernel32/kernel32.spec |  1 +
 dlls/ntdll/ntdll.spec       |  1 +
 dlls/ntdll/signal_arm64ec.c | 11 +++++++++++
 3 files changed, 13 insertions(+)

diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec
index 1deeb2a2ca5..7e2a2ae8064 100644
--- a/dlls/kernel32/kernel32.spec
+++ b/dlls/kernel32/kernel32.spec
@@ -1670,6 +1670,7 @@
 @ stdcall -import ZombifyActCtx(ptr)
 @ stdcall -arch=arm,x86_64 -private __C_specific_handler(ptr long ptr ptr) NTDLL.__C_specific_handler
 @ cdecl -arch=arm,x86_64 -norelay __chkstk() NTDLL.__chkstk
+@ cdecl -arch=arm64ec -norelay __chkstk_arm64ec() NTDLL.__chkstk_arm64ec
 @ stub _DebugOut
 @ stub _DebugPrintf
 @ stdcall _hread(long ptr long)
diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index c09157a369b..1908a089d44 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -1506,6 +1506,7 @@
 @ cdecl -private -arch=i386 _CIsqrt()
 @ stdcall -arch=!i386 __C_specific_handler(ptr long ptr ptr)
 @ cdecl -arch=!i386 -norelay __chkstk()
+@ cdecl -arch=arm64ec -norelay __chkstk_arm64ec()
 @ cdecl __isascii(long)
 @ cdecl __iscsym(long)
 @ cdecl __iscsymf(long)
diff --git a/dlls/ntdll/signal_arm64ec.c b/dlls/ntdll/signal_arm64ec.c
index 4f39c24bfe1..be22278a252 100644
--- a/dlls/ntdll/signal_arm64ec.c
+++ b/dlls/ntdll/signal_arm64ec.c
@@ -170,6 +170,17 @@ void __attribute__((naked)) __chkstk(void)
 }

+/**************************************************************************
+ *		__chkstk_arm64ec (NTDLL.@)
+ *
+ * Supposed to touch all the stack pages, but we shouldn't need that.
+ */
+void __attribute__((naked)) __chkstk_arm64ec(void)
+{
+    asm( "ret" );
+}
+
+
 /***********************************************************************
  *		RtlRaiseException (NTDLL.@)
  */