Witryna6 sie 2024 · A naked function has a defined calling convention and a body which contains only assembly code which can rely upon the defined calling convention. A naked function is identified by the # [naked] attribute and: should specify a calling convention besides extern "Rust". should define only FFI-safe arguments and return … WitrynaThe clobber_abi("C") means that we ask the compiler to treat all registers the C-ABI specifies as "unsafe to assume untouched" by our function call as clobbered. This means that the compiler will push the values of these registers on to the stack before calling switch and pop them back in to the same registers once the function returns. …
Naked 函数 Microsoft Learn
Witryna2 maj 2015 · Naked Functions. Let’s start with the definition of what a naked function is. Basically whenever you declare a C/C++ function inside your code, the compiler will add some extra assembly code to the beginning and to the end of it, this code is responsible for cleaning the stack, popping arguments of the function and so forth. ... Witryna16 mar 2024 · A function is a set of statements that take inputs, do some specific computation, and produce output. The idea is to put some commonly or repeatedly … how to order wedding invitations
Function Attributes - Using the GNU Compiler Collection (GCC)
Witryna14 kwi 2024 · Quote You are declaring your function as __naked, so the compiler will not generate any code for parameter passing and returning. Like you already said interrupt function I am setting __naked to has no parameters and no return type also so this should not matter. Quote When you declare function as __naked, contents of … Witrynarelatively large) asm function as a C string. You say that naked attributes "just work". But the problem is that corner cases keep cropping up. Your return question is a good example. My understanding is that the compiler should never generate any code itself for a naked function, and that naked functions must be an asm and nothing else. WitrynaBecause naked functions aren't functions. You don't " enter " a naked function. When you enter a function you save registers, push a return address to stack, align the stack, and tidy things up for the next function. With naked functions none of this happens. The stack pointer isn't saved, registers aren't perserved, etc. mw2 alone walkthrough