The following commit has been merged into the x86/asm branch of tip: Commit-ID: a3e8fe814ad15c16735cdf394454a8bd96eb4d56 Gitweb: https://git.kernel.org/tip/a3e8fe814ad15c16735cdf394454a8bd96eb4d56 Author: Brian Gerst <brgerst@xxxxxxxxx> AuthorDate: Thu, 23 Jan 2025 14:07:33 -05:00 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitterDate: Tue, 18 Feb 2025 10:14:40 +01:00 x86/build: Raise the minimum GCC version to 8.1 Stack protector support on 64-bit currently requires that the percpu section is linked at absolute address 0, because older compilers fixed the location of the canary value relative to the GS segment base. GCC 8.1 introduced options to change where the canary value is located, allowing it to be configured as a standard per-CPU variable. This has already been done for 32-bit. Doing the same for 64-bit will enable removing the code needed to support zero-based percpu. Signed-off-by: Brian Gerst <brgerst@xxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Reviewed-by: Ard Biesheuvel <ardb@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20250123190747.745588-2-brgerst@xxxxxxxxx --- scripts/min-tool-version.sh | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh index 91c9120..06c4e41 100755 --- a/scripts/min-tool-version.sh +++ b/scripts/min-tool-version.sh @@ -19,6 +19,8 @@ binutils) gcc) if [ "$ARCH" = parisc64 ]; then echo 12.0.0 + elif [ "$SRCARCH" = x86 ]; then + echo 8.1.0 else echo 5.1.0 fi
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