Changeset 2760 in kBuild

Timestamp:

Jan 28, 2015 4:26:19 PM (10 years ago)

Author:

bird

Message:

main.c: Fixed stack alignment in the AMD64 specific signal emulation code.

File:

• trunk/src/kmk/main.c (modified) (2 diffs)

trunk/src/kmk/main.c

@@ -1165 +1165 @@
     CONTEXT Ctx;
 
+    /*fprintf(stderr, "dbg: ctrl_event sig=%d\n", sig);*/
 #ifndef _M_IX86
     /* only once. */
@@ -1197 +1198 @@
 #else
         g_Ctx = Ctx;
-        Ctx.Rsp -= 0x20;
+        Ctx.Rsp -= 0x80;
         Ctx.Rsp &= ~(uintptr_t)0xf;
-        Ctx.Rip = (uintptr_t)&dispatch_stub;
+        Ctx.Rsp += 8;   /* (Stack aligned before call instruction, not after.) */
+        Ctx.Rip  = (uintptr_t)&dispatch_stub;
 #endif