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Date: Fri, 21 Aug 2020 12:42:46 -0700 From: Kees Cook <keescook@...omium.org> To: Ingo Molnar <mingo@...nel.org> Cc: Kees Cook <keescook@...omium.org>, Fangrui Song <maskray@...gle.com>, Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>, Ard Biesheuvel <ardb@...nel.org>, Peter Collingbourne <pcc@...gle.com>, James Morse <james.morse@....com>, Borislav Petkov <bp@...e.de>, Ingo Molnar <mingo@...hat.com>, Russell King <linux@...linux.org.uk>, Masahiro Yamada <masahiroy@...nel.org>, Arvind Sankar <nivedita@...m.mit.edu>, Nick Desaulniers <ndesaulniers@...gle.com>, Nathan Chancellor <natechancellor@...il.com>, Arnd Bergmann <arnd@...db.de>, x86@...nel.org, clang-built-linux@...glegroups.com, linux-arch@...r.kernel.org, linux-efi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH v6 05/29] vmlinux.lds.h: Add .symtab, .strtab, and .shstrtab to ELF_DETAILS When linking vmlinux with LLD, the synthetic sections .symtab, .strtab, and .shstrtab are listed as orphaned. Add them to the ELF_DETAILS section so there will be no warnings when --orphan-handling=warn is used more widely. (They are added above comment as it is the more common order[1].) ld.lld: warning: <internal>:(.symtab) is being placed in '.symtab' ld.lld: warning: <internal>:(.shstrtab) is being placed in '.shstrtab' ld.lld: warning: <internal>:(.strtab) is being placed in '.strtab' [1] https://lore.kernel.org/lkml/20200622224928.o2a7jkq33guxfci4@google.com/ Reported-by: Fangrui Song <maskray@...gle.com> Signed-off-by: Kees Cook <keescook@...omium.org> --- include/asm-generic/vmlinux.lds.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index cadcbc3cdabd..98d013dcc11a 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -823,7 +823,10 @@ /* Required sections not related to debugging. */ #define ELF_DETAILS \ - .comment 0 : { *(.comment) } + .comment 0 : { *(.comment) } \ + .symtab 0 : { *(.symtab) } \ + .strtab 0 : { *(.strtab) } \ + .shstrtab 0 : { *(.shstrtab) } #ifdef CONFIG_GENERIC_BUG #define BUG_TABLE \ -- 2.25.1
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