Add some musl libc limitations

1 files changed, 5 insertions, 4 deletions

diff --git a/README.md b/README.md
index 2043ba7..361051e 100644
--- a/README.md
+++ b/README.md
@@ -10,10 +10,10 @@
 |`-Wformat -Wformat-security`     |[2023](https://gitlab.alpinelinux.org/alpine/abuild/-/commit/ca8375f0e9d1715e38c14c918c675d6774f1eabc)|[2011](https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff)|[yes](https://src.fedoraproject.org/rpms/redhat-rpm-config/blob/rawhide/f/buildflags.md)|[2009](https://bugs.gentoo.org/259417)|[2008](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|yes|[2021](https://gitlab.archlinux.org/archlinux/packaging/packages/pacman/-/commit/f409a72342bf37017f190021970efaaeac1bb619)|?|[2023](https://github.com/chimera-linux/cports/commit/ad898a6b645b11dee989f4504e89577f5395ba24)|[2010](https://source.android.com/docs/security/enhancements/enhancements41)|
 |`-Wl,-z,relro`/`-Wl,-z,now`      |[yes](https://gitlab.alpinelinux.org/alpine/tsc/-/issues/64)|[yes](https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff)|[yes](https://src.fedoraproject.org/rpms/redhat-rpm-config/blob/rawhide/f/buildflags.md)|[yes](https://wiki.gentoo.org/wiki/Hardened/Toolchain)|[2008](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|[2006](https://en.opensuse.org/openSUSE:Security_Features)|[2017](https://gitlab.archlinux.org/archlinux/packaging/packages/pacman/-/commit/b4b2bb56174493ea2e60b1eecc0085db421908cc)|?|[yes](https://github.com/chimera-linux/cports/commit/9b78e55067f024b8dbf9fbceb472e8705f84ed5d)|[2013](https://source.android.com/docs/security/enhancements/enhancements43)|
 |`-fPIE`/`-fPIC`/…                |[2008](https://gitlab.alpinelinux.org/alpine/abuild/-/commit/fdc478bde8a2a0d76d33fcc89fa313c9f31bb79c)|[2011](https://github.com/guillemj/dpkg/commit/f3bb7d4939ae95cf44c89e8f599e7ed5da431e57)|[2015](https://fedoraproject.org/wiki/Changes/Harden_All_Packages)|[yes](https://wiki.gentoo.org/wiki/Hardened/Toolchain)|[2016](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|[2017](https://bugzilla.suse.com/show_bug.cgi?id=912298)|[2017](https://github.com/archlinux/svntogit-packages/commit/5936710c764016ce306f9cb975056e5b7605a65b)|[yes](https://man.openbsd.org/clang-local)|[yes](https://github.com/chimera-linux/cports/blob/master/Packaging.md#hardening_options)|[2012](https://source.android.com/docs/security/enhancements/enhancements41)|
-|`-fcf-protection`/`-mcet`        |[no](https://gitlab.alpinelinux.org/alpine/tsc/-/issues/64)|[yes](https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff)|[2018](https://fedoraproject.org/wiki/Changes/HardeningFlags28)|[2021](https://bugs.gentoo.org/822036)|[2019](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|yes|[2021](https://gitlab.archlinux.org/archlinux/packaging/packages/pacman/-/commit/f409a72342bf37017f190021970efaaeac1bb619)|[2023](https://github.com/openbsd/src/commit/bba006a81846d90e529167c689ea0d456b4599bc)|[no](https://github.com/chimera-linux/cports/blob/master/src/cbuild/core/profile.py)|no|
-|`-fsanitize=cfi`                 |no|no|no|no|no|no|no|no|[partial](https://github.com/search?q=repo%3Achimera-linux%2Fcports+%22cfi%22&type=code)|[2018](https://source.android.com/docs/security/test/cfi), partial|
-|`-fsanitize=safe-stack`          |no|no|no|no|no|no|no|no|[no](https://github.com/chimera-linux/cports/blob/master/Packaging.md#hardening_options)|?|
-|`-fsanitize=shadow-call-stack`   |no|no|no|no|no|no|no|no|no|[2019](https://security.googleblog.com/2019/05/queue-hardening-enhancements.html), partial|
+|`-fcf-protection`/`-mcet`[^2]    |[no](https://gitlab.alpinelinux.org/alpine/tsc/-/issues/64)|[yes](https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff)|[2018](https://fedoraproject.org/wiki/Changes/HardeningFlags28)|[2021](https://bugs.gentoo.org/822036)|[2019](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|yes|[2021](https://gitlab.archlinux.org/archlinux/packaging/packages/pacman/-/commit/f409a72342bf37017f190021970efaaeac1bb619)|[2023](https://github.com/openbsd/src/commit/bba006a81846d90e529167c689ea0d456b4599bc)|[no](https://github.com/chimera-linux/cports/blob/master/src/cbuild/core/profile.py)|no|
+|`-fsanitize=cfi`[^2]             |no|no|no|no|no|no|no|no|[partial](https://github.com/search?q=repo%3Achimera-linux%2Fcports+%22cfi%22&type=code)|[2018](https://source.android.com/docs/security/test/cfi), partial|
+|`-fsanitize=safe-stack`[^2]      |no|no|no|no|no|no|no|no|[no](https://github.com/chimera-linux/cports/blob/master/Packaging.md#hardening_options)|?|
+|`-fsanitize=shadow-call-stack`[^2] |no|no|no|no|no|no|no|no|no|[2019](https://security.googleblog.com/2019/05/queue-hardening-enhancements.html), partial|
 |`-fsanitize=signed-integer-overflow`/`-ftrapv`|no|no|no|no|no|no|no|[no](https://man.openbsd.org/clang-local)|[yes](https://github.com/chimera-linux/cports/blob/master/Packaging.md#hardening_options)|[2018](https://android-developers.googleblog.com/2018/06/compiler-based-security-mitigations-in.html), partial|
 |`-fsanitize=undefined`|no|no|no|no|no|no|no|?|no|?|
 |`-fstack-clash-protection`       |[2023](https://gitlab.alpinelinux.org/alpine/abuild/-/commit/4f7a2aff7b87cec7dd2783f95b5d6f744244c6c7)|[yes](https://salsa.debian.org/toolchain-team/gcc/-/blob/master/debian/patches/gcc-distro-specs.diff)|[2018](https://fedoraproject.org/wiki/Changes/HardeningFlags28)|[2018](https://bugs.gentoo.org/675050)|[2019](https://wiki.ubuntu.com/ToolChain/CompilerFlags)|[2018](https://en.opensuse.org/openSUSE:Security_Features)|[2021](https://gitlab.archlinux.org/archlinux/packaging/packages/pacman/-/commit/f409a72342bf37017f190021970efaaeac1bb619)|?|[yes](https://github.com/chimera-linux/cports/blob/master/Packaging.md#hardening_options)|?|
@@ -42,3 +42,4 @@ Sources:
 - https://sergesanspaille.fedorapeople.org/lpc2020.pdf
 
 [^1]: As `-D_LIBCPP_ENABLE_HARDENED_MODE` only works for llvm17, which isn't in Alpine yet.
+[^2]: Not supported by [musl libc](https://musl.libc.org)