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🔧 防止编译器在enter_syscall中修改rcx、rdx

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fslongjin 2022-02-16 14:18:29 +08:00
parent d3a5048f66
commit 26e0b095ed
1 changed files with 1 additions and 1 deletions
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kernel/syscall/syscall.c
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@ -47,7 +47,7 @@ long enter_syscall(ul syscall_id, ul arg0, ul arg1, ul arg2, ul arg3, ul arg4, u
"sysexit_return_address: \n\t"
: "=a"(err_code)
: "0"(syscall_id), "m"(arg0), "m"(arg1), "m"(arg2), "m"(arg3), "m"(arg4), "m"(arg5), "m"(arg6), "m"(arg7)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15");
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
return err_code;
}