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a3e8fe814a
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@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/20250123190747.745588-2-brgerst@gmail.com
47 lines
676 B
Bash
Executable file
47 lines
676 B
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0-only
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#
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# Print the minimum supported version of the given tool.
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# When you raise the minimum version, please update
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# Documentation/process/changes.rst as well.
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set -e
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if [ $# != 1 ]; then
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echo "Usage: $0 toolname" >&2
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exit 1
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fi
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case "$1" in
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binutils)
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echo 2.25.0
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;;
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gcc)
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if [ "$ARCH" = parisc64 ]; then
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echo 12.0.0
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elif [ "$SRCARCH" = x86 ]; then
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echo 8.1.0
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else
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echo 5.1.0
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fi
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;;
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llvm)
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if [ "$SRCARCH" = s390 ]; then
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echo 15.0.0
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elif [ "$SRCARCH" = loongarch ]; then
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echo 18.0.0
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else
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echo 13.0.1
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fi
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;;
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rustc)
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echo 1.78.0
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;;
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bindgen)
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echo 0.65.1
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;;
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*)
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echo "$1: unknown tool" >&2
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exit 1
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;;
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esac
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