[PATCH] D30886: [ELF] Pad x86 executable sections with 0xcc int3 instructions

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added a comment.

Agreed. Before this, we used a filler pattern only when the linker script `=<fillexp>` feature was used. Now that we are going to fill the gap unconditionally. Therefore, the performance of doing that is important. As you wrote, we should set only to the gap and not the memory region that will immediately be overwritten. Also, for better memory locality, we should fill the gap in the callback function of `forEach`.


https://reviews.llvm.org/D30886