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authorSami Tolvanen <samitolvanen@google.com>2022-09-08 23:55:01 +0200
committerKees Cook <keescook@chromium.org>2022-09-26 19:13:15 +0200
commitca7e10bff196f69a450b9072a7b757713d3bb2dd (patch)
tree00f75a2bafcaa58833a082d6c909bc4127ad8c0e /arch/x86/tools/relocs.c
parentkallsyms: Drop CONFIG_CFI_CLANG workarounds (diff)
downloadlinux-ca7e10bff196f69a450b9072a7b757713d3bb2dd.tar.xz
linux-ca7e10bff196f69a450b9072a7b757713d3bb2dd.zip
x86/tools/relocs: Ignore __kcfi_typeid_ relocations
The compiler generates __kcfi_typeid_ symbols for annotating assembly functions with type information. These are constants that can be referenced in assembly code and are resolved by the linker. Ignore them in relocs. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Kees Cook <keescook@chromium.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220908215504.3686827-20-samitolvanen@google.com
Diffstat (limited to 'arch/x86/tools/relocs.c')
-rw-r--r--arch/x86/tools/relocs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index e2c5b296120d..2925074b9a58 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -56,6 +56,7 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = {
"^(xen_irq_disable_direct_reloc$|"
"xen_save_fl_direct_reloc$|"
"VDSO|"
+ "__kcfi_typeid_|"
"__crc_)",
/*