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In a stack machine, the operands used in the instructions are always at a known offset (set in the stack pointer), from a fixed location (the bottom of the stack, which in a hardware design might always be at memory location zero), saving precious in-cache or in-CPU storage from being used to store quite so many memory addresses or index ...
The caller cleans the stack after the function call returns. The cdecl calling convention is usually the default calling convention for x86 C compilers, although many compilers provide options to automatically change the calling conventions used. To manually define a function to be cdecl, some support the following syntax:
The Tiny C Compiler, TCC, tCc, or TinyCC is an x86, X86-64 and ARM processor C compiler initially written by Fabrice Bellard. It is designed to work for slower computers with little disk space (e.g. on rescue disks). Windows operating system support was added in version 0.9.23 (17 June 2005).
Some implementations of trampolines cause a loss of no-execute stacks (NX stack). In the GNU Compiler Collection (GCC) in particular, a nested function builds a trampoline on the stack at runtime, and then calls the nested function through the data on stack. The trampoline requires the stack to be executable.
The Android Native Development Kit (NDK) provides a cross-compiling tool for compiling code written in C/C++ can be compiled to ARM, or x86 native code (or their 64-bit variants) for Android. [4] [5] The NDK uses the Clang compiler to compile C/C++. GCC was included until NDK r17, but removed in r18 in 2018.
The reserved value is only present in 64-bit Mach-O files. It is reserved for future use or extension of the 64-bit header. The CPU type indicates the instruction set architecture for the code. If the file is for the 64-bit version of the instruction set architecture, the CPU type value has the 0x01000000 bit set. The CPU type values are as ...
The compiler provides a large set of high-level optimizations as well as target-specific optimizations to produce faster or smaller code. It is also able to optimize across functions and modules. Target-independent optimizations supported by vbcc include: cross-module function inlining; partial inlining of recursive functions
The Android platform uses libc++ for the C++ standard library (releases up to and including Lollipop used stlport). The NDK historically offered stlport and GNU libstdc++, but those were removed as of NDK r18. [9] Note that if any native code in an Android app uses C++, all the C++ must use the same STL. The STL is not provided by the Android ...