HevTaskSystem: Add initial support for MSYS.

Co-developed-by: hev <[email protected]>

Author: MikeWang000000

src/arch/x86/asm.h

@@ -2,7 +2,7 @@
  ============================================================================
  Name        : asm.h
  Author      : Heiher <[email protected]>
- Copyright   : Copyright (c) 2018 everyone.
+ Copyright   : Copyright (c) 2018 - 2025 everyone.
  Description :
  ============================================================================
  */
@@ -15,6 +15,14 @@ _##symbol:
 
 # define END(symbol)
 
+#elif defined(__MSYS__)
+
+# define NESTED(symbol) \
+    .globl symbol; \
+symbol:
+
+# define END(symbol)
+
 #else
 
 # define NESTED(symbol) \

src/arch/x86/hev-task-execute-x86_64.s

@@ -2,21 +2,31 @@
  ============================================================================
  Name        : hev-task-execute-x86_64.s
  Author      : Heiher <[email protected]>
- Copyright   : Copyright (c) 2017 - 2018 everyone.
+ Copyright   : Copyright (c) 2017 - 2025 everyone.
  Description :
  ============================================================================
  */
 
 #include "asm.h"
 
+#if defined(__MSYS__)
+#define REG_ARG0  %rcx
+#define REG_ARG1  %rdx
+#define STACK_PAD 0x28
+#else
+#define REG_ARG0  %rdi
+#define REG_ARG1  %rsi
+#define STACK_PAD 0x08
+#endif
+
 NESTED(hev_task_execute)
     movq  %rsp, %rax
-    movq  (%rdi), %rsp
-    subq  $0x8, %rsp
+    movq  (REG_ARG0), %rsp
     pushq %rax
+    subq  $STACK_PAD, %rsp
 
-    callq  *%rsi
+    callq *REG_ARG1
 
-    popq  %rsp
+    movq  STACK_PAD(%rsp), %rsp
     retq
 END(hev_task_execute)

src/kern/io/hev-task-io-reactor-kqueue.h

@@ -15,6 +15,14 @@
 #include <sys/event.h>
 #include <sys/time.h>
 
+#if defined(__MSYS__)
+#include <io.h>
+#endif
+
+#ifndef get_osfhandle
+#define get_osfhandle
+#endif
+
 #ifndef EVFILT_EXCEPT
 #define EVFILT_EXCEPT (0)
 #endif
@@ -83,7 +91,7 @@ hev_task_io_reactor_setup_event_set (HevTaskIOReactorSetupEvent *event, int fd,
         action = EV_DELETE;
     }
 
-    EV_SET (event, fd, events, action | EV_CLEAR, 0, 0, data);
+    EV_SET (event, get_osfhandle (fd), events, action | EV_CLEAR, 0, 0, data);
 }
 
 static inline int

src/kern/task/hev-task-stack-mmap.c

@@ -2,7 +2,7 @@
  ============================================================================
  Name        : hev-task-stack-mmap.c
  Author      : Heiher <[email protected]>
- Copyright   : Copyright (c) 2021 everyone.
+ Copyright   : Copyright (c) 2021 - 2025 everyone.
  Description :
  ============================================================================
  */
@@ -17,7 +17,7 @@
 
 #if CONFIG_STACK_BACKEND == STACK_MMAP
 
-#if defined(__APPLE__) && !defined(MAP_STACK)
+#ifndef MAP_STACK
 #define MAP_STACK (0)
 #endif