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by 1718627440
152 days ago
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If you choose to put a boundary in your code that makes it span over several binaries, so that they can be swapped out at runtime, no compiler in any language can optimize that away, because that would be against the interface you explicitly chose. That's what dynamic linking aka. runtime linking is in C. This is not an issue for libc, because the behaviour of that is not specified by the code itself, but by the spec, which is why C compilers can and do completely remove or change calls to libc, much to the distress of someone expecting a portable assembler. |
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