I want to make a simple just-in-time compiler with c on Linux.
How can I allocate memory such that I can write out raw x86 code to it and execute it as any other function?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I want to make a simple just-in-time compiler with c on Linux.
How can I allocate memory such that I can write out raw x86 code to it and execute it as any other function?
See mprotect(). Once you have filled a (n-)page-sized memory region (allocated with mmap()) with code, change its permissions to disallow writes and allow execution.