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CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE: Use cacheline-aware structure randomization

General informations

The Linux kernel configuration item CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE has multiple definitions:

Use cacheline-aware structure randomization found in scripts/gcc-plugins/Kconfig

The configuration item CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE:

Help text

If you say Y here, the RANDSTRUCT randomization will make a best effort at restricting randomization to cacheline-sized groups of elements. It will further not randomize bitfields in structures. This reduces the performance hit of RANDSTRUCT at the cost of weakened randomization.

Use cacheline-aware structure randomization found in arch/Kconfig

The configuration item CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE:

Help text

If you say Y here, the RANDSTRUCT randomization will make a best effort at restricting randomization to cacheline-sized groups of elements. It will further not randomize bitfields in structures. This reduces the performance hit of RANDSTRUCT at the cost of weakened randomization.

Hardware

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