arch,entry: fix error_code and vector storing for 32bit mode

In 64bit mode push 64bit 0 value on the stack as the aligning error code and overwrite upper 32 bits of it with vector value. In 32bit mode push 32bit 0 value on the stack as the aligning error code and push vector value additionally. Signed-off-by: Pawel Wieczorkiewicz <[email protected]>
KernelTestFramework · Aug 27, 2023 · 2d10a23 · 2d10a23
1 parent e8aed89
commit 2d10a23
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/arch/x86/entry.S b/arch/x86/entry.S
@@ -68,7 +68,12 @@ ENTRY(entry_\sym)
         push $0
     .endif
 
+#if defined(__x86_64__)
     movl $\vec, cpu_exc_vector(%_ASM_SP)
+#else
+    push $\vec
+#endif
+
     jmp handle_exception
 END_FUNC(entry_\sym)
 .endm
@@ -119,11 +124,7 @@ ENTRY(handle_exception)
 
     RESTORE_ALL_REGS
 
-#if defined(__x86_64__)
     add $8, %_ASM_SP
-#else
-    add $4, %_ASM_SP
-#endif
 
     enter_to_usermode
     IRET