diff options
Diffstat (limited to 'toj/center/src/judgk_syscall_asm.S')
| -rwxr-xr-x | toj/center/src/judgk_syscall_asm.S | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/toj/center/src/judgk_syscall_asm.S b/toj/center/src/judgk_syscall_asm.S index dfc5bc6..03ff960 100755 --- a/toj/center/src/judgk_syscall_asm.S +++ b/toj/center/src/judgk_syscall_asm.S @@ -1,10 +1,9 @@ .code64 -.section .data .section .text -.global hook_sys_block -.type hook_sys_block,@function +.global judgk_syscall_block +.extern judgk_syscall_check -hook_sys_block: +judgk_syscall_block: push %rax push %rbx push %rcx @@ -20,10 +19,11 @@ hook_sys_block: push %r13 push %r14 push %r15 + pushfq call judgk_syscall_check - test %eax,%eax - + + popfq pop %r15 pop %r14 pop %r13 @@ -38,17 +38,17 @@ hook_sys_block: pop %rdx pop %rcx pop %rbx - pop %rax - jnz block + test %rax,%rax + pop %rax + jnz .block - push %rdx + push %rdx //use rdx, because mul rax => rdx:rax, kill two birds with one stone mov $8,%rdx mul %rdx pop %rdx add judgk_syscall_ori_table,%rax jmp *(%rax) -block: - call judgk_syscall_block - mov $-1,%rax + +.block: ret |