[lld] ELF: Introduce --shuffle-padding flag. (PR #117653)

[Peter Smith via llvm-commits]

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@@ -796,6 +796,15 @@ class RelroPaddingSection final : public SyntheticSection {
   void writeTo(uint8_t *buf) override {}
 };
 
+class ShufflePaddingSection final : public SyntheticSection {
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smithp35 wrote:

Would it be better to call this a `PaddingSection`? While it can be used to implement shuffle padding, there isn't anything in here that's random. I guess the fixed SHT_PROGBITS would need to be changed if this were to be a completely generic padding section.

Just thinking of possible future uses for this type of section.

https://github.com/llvm/llvm-project/pull/117653