Fix ucore x86_64 esp->rsp

6 years ago · 04cb3d1fd5
parent 822cd03368
commit 04cb3d1fd5
1 changed files with 2 additions and 2 deletions
--- a/ucore/src/arch/x86_64/initcode.S
+++ b/ucore/src/arch/x86_64/initcode.S
@ -2,11 +2,11 @@
 .globl _start
 _start:
    # set ebp for backtrace
-    movl $0x0, %ebp
+    movq $0x0, %rbp

    # move down the esp register
    # since it may cause page fault in backtrace
-    subl $0x20, %esp
+    subq $0x20, %rsp

    # call user-program function
    # according to fastcall ABI, the first 6 parameters are in registes