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ada2fc088c
To mitigate Spectre Variant 2, GCC needs to have retpoline support (-mindirect-branch and -mfunction-return arguments on amd64 and i386). Patches were pulled from H.J. Lu's backport branch to 4.9 (hjl/indirect/gcc-4_9-branch), available at https://github.com/hjl-tools/gcc/tree/hjl/indirect/gcc-4_9-branch/master. Upstream GCC does not apply patches to anything older than the gcc-6-branch. H.J. Lu is the author of the upstream retpoline commits as well. Several Linux distributions already backported these patches to GCC 4 branches and some old kernels (3.13 for instance) have been recompiled with these GCC patches. These kernels only allow to load kernel modules that are compiled with the retpoline support. References: - Ubuntu bug: https://bugs.launchpad.net/ubuntu/+source/gcc-4.8/+bug/1749261 - Ubuntu package: https://launchpad.net/ubuntu/+source/gcc-4.8/4.8.4-2ubuntu1~14.04.4 Fixes #38394 |
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| .. | ||
| 4.8 | ||
| 4.9 | ||
| 5 | ||
| 6 | ||
| 7 | ||
| snapshot | ||
| builder.sh | ||
| gfortran-darwin-NXConstStr.patch | ||
| gfortran-driving.patch | ||
| libstdc++-hook.sh | ||
| libstdc++-target.patch | ||
| no-sys-dirs.patch | ||
| parallel-bconfig.patch | ||
| res_state-not-declared.patch | ||
| sigsegv-not-declared.patch | ||
| struct-sigaltstack-4.9.patch | ||
| struct-sigaltstack.patch | ||
| struct-ucontext-4.5.patch | ||
| struct-ucontext-4.8.patch | ||
| struct-ucontext-libjava.patch | ||
| struct-ucontext.patch | ||
| use-source-date-epoch.patch | ||