debian/rules: add full OpenSSF compiler hardening baseline - #48
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cc @donaldsharp @louberger — requesting your review on this OpenSSF compiler hardening change. |
Upgrade FORTIFY_SOURCE to level 3 (dpkg default is =2). The -U flag clears the existing =2 before setting =3 to avoid duplicate-definition warnings. Signed-off-by: xq9mend <xq9mend@users.noreply.github.com>
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Why I did it
Enable compiler and linker hardening flags aligned with the OpenSSF Compiler Options Hardening Guide for C and C++.
Work item tracking
How I did it
Add to
debian/rules:hardening=+all,+bindnow: full RELRO, stack-protector-strong, format checks, PIEFORTIFY_SOURCE=3: upgraded from dpkg default of 2_GLIBCXX_ASSERTIONS: C++ stdlib bounds checking-fstack-clash-protection: stack clash mitigation-fcf-protection=full(amd64) /-mbranch-protection=standard(arm64): CFI-fno-delete-null-pointer-checks,-fno-strict-overflow,-fno-strict-aliasing,-ftrivial-auto-var-init=zero(GCC >= 12 only)-Wl,-z,nodlopen -Wl,-z,noexecstack -Wl,--as-neededHow to verify it
CI build passes. Verify with
objdump -dorchecksecon produced binaries.Description for the changelog
enable OpenSSF compiler hardening baseline
Link to config_db schema for YANG changes
N/A