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Rust fixes for v6.12 (3nd)

Browse Source 
Toolchain and infrastructure:
 
  - Avoid build errors with old 'rustc's without LLVM patch version
    (important since it impacts people that do not even enable Rust).
 
  - Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
    'depends on' condition (the fix was eventually backported rather than
    land in LLVM 19).
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Merge tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Avoid build errors with old 'rustc's without LLVM patch version
     (important since it impacts people that do not even enable Rust)

   - Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
     'depends on' condition (the fix was eventually backported rather
     than land in LLVM 19)"

* tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux:
  cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE_INTEGERS
  kbuild: rust: avoid errors with old `rustc`s without LLVM patch version
This commit is contained in:
Linus Torvalds 2024-11-01 15:59:46 -10:00
commit f7292c0934
2 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/Kconfig
View File

@ -855,14 +855,14 @@ config HAVE_CFI_ICALL_NORMALIZE_INTEGERS_CLANG
def_bool y
depends on $(cc-option,-fsanitize=kcfi -fsanitize-cfi-icall-experimental-normalize-integers)
# With GCOV/KASAN we need this fix: https://github.com/llvm/llvm-project/pull/104826
depends on CLANG_VERSION >= 190000 || (!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
depends on CLANG_VERSION >= 190103 || (!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
config HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC
def_bool y
depends on HAVE_CFI_ICALL_NORMALIZE_INTEGERS_CLANG
depends on RUSTC_VERSION >= 107900
# With GCOV/KASAN we need this fix: https://github.com/rust-lang/rust/pull/129373
depends on (RUSTC_LLVM_VERSION >= 190000 && RUSTC_VERSION >= 108200) || \
depends on (RUSTC_LLVM_VERSION >= 190103 && RUSTC_VERSION >= 108200) || \
(!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
config CFI_PERMISSIVE

2
scripts/rustc-llvm-version.sh
View File

@ -13,7 +13,7 @@ get_canonical_version()
echo $((10000 * $1 + 100 * $2 + $3))
}
if output=$("$@" --version --verbose 2>/dev/null | grep LLVM); then
if output=$("$@" --version --verbose 2>/dev/null | grep -E 'LLVM.*[0-9]+\.[0-9]+\.[0-9]+'); then
set -- $output
get_canonical_version $3
else