Messages in this thread Patch in this message | | | From | Arvind Sankar <> | Subject | [PATCH] x86/boot/compressed: Fix compressed kernel linking with lld | Date | Sat, 22 Feb 2020 12:18:59 -0500 |
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Commit TBD ("x86/boot/compressed: Remove unnecessary sections from bzImage") discarded unnecessary sections with *(*). While this works fine with the bfd linker, lld tries to also discard essential sections like .shstrtab, .symtab and .strtab, which results in the link failing since .shstrtab is required by the ELF specification. .symtab and .strtab are also necessary to generate the zoffset.h file for the bzImage header.
Since the only sizeable section that can be discarded is .eh_frame, restrict the discard to only .eh_frame to be safe.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> --- Sending as a fix on top of tip/x86/boot.
arch/x86/boot/compressed/vmlinux.lds.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S index 12a20603d92e..469dcf800a2c 100644 --- a/arch/x86/boot/compressed/vmlinux.lds.S +++ b/arch/x86/boot/compressed/vmlinux.lds.S @@ -74,8 +74,8 @@ SECTIONS . = ALIGN(PAGE_SIZE); /* keep ZO size page aligned */ _end = .; - /* Discard all remaining sections */ + /* Discard .eh_frame to save some space */ /DISCARD/ : { - *(*) + *(.eh_frame) } } -- 2.24.1
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