Remove FORTIFY_SOURCE since it is not compatible with or used by musl libc. Switch stack protector from all to strong since strong covers the entire practical stack smashing protection threat model. Switch -ftrivial-auto-var-init from pattern to zero since it is no longer being removed from Clang and is more suitable for hardening.

This commit is contained in:
inference 2023-01-17 01:22:16 +00:00
parent a244fd9746
commit 2b77e163f4
Signed by: inference
SSH Key Fingerprint: SHA256:9Pl0nZ2UJacgm+IeEtLSZ4FOESgP1eKCtRflfPfdX9M

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@ -3,7 +3,7 @@
# Copyright 2022-2023 Inference
# SPDX-License-Identifier: BSD-3-Clause-Clear
# Version: 6.0.0.29
# Version: 7.0.0.30
# System
@ -50,7 +50,7 @@ STRIP="llvm-strip"
# Flags
## Hardening flags
C_SEC="-D_FORTIFY_SOURCE=2 -fPIC -fPIE -fstack-clash-protection -fstack-protector-all -ftrivial-auto-var-init=pattern -fwrapv"
C_SEC="-fPIC -fPIE -fstack-clash-protection -fstack-protector-strong -ftrivial-auto-var-init=zero -fwrapv"
LD_SEC="-Wl,-z,defs -Wl,-z,now -Wl,-pie -Wl,-z,relro -Wl,--strip-all"
## Compiler flags
CFLAGS="-march=znver3 -mtune=znver3 -O2 -pipe -flto=thin -U__gnu_linux__ ${C_SEC}"