Messages in this thread Patch in this message | | | From | Nathan Chancellor <> | Subject | [PATCH 1/2] arm64: vdso32: Shuffle .ARM.exidx section above ELF_DETAILS | Date | Thu, 30 Jun 2022 08:31:20 -0700 |
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When building the 32-bit vDSO after commit 5c4fb60816ea ("arm64: vdso32: add ARM.exidx* sections"), ld.lld 11 fails to link:
ld.lld: error: could not allocate headers ld.lld: error: unable to place section .text at file offset [0x2A0, 0xBB1]; check your linker script for overflows ld.lld: error: unable to place section .comment at file offset [0xBB2, 0xC8A]; check your linker script for overflows ld.lld: error: unable to place section .symtab at file offset [0xC8C, 0xE0B]; check your linker script for overflows ld.lld: error: unable to place section .strtab at file offset [0xE0C, 0xF1C]; check your linker script for overflows ld.lld: error: unable to place section .shstrtab at file offset [0xF1D, 0xFAA]; check your linker script for overflows ld.lld: error: section .ARM.exidx file range overlaps with .hash >>> .ARM.exidx range is [0x90, 0xCF] >>> .hash range is [0xB4, 0xE3]
ld.lld: error: section .hash file range overlaps with .ARM.attributes >>> .hash range is [0xB4, 0xE3] >>> .ARM.attributes range is [0xD0, 0x10B]
ld.lld: error: section .ARM.attributes file range overlaps with .dynsym >>> .ARM.attributes range is [0xD0, 0x10B] >>> .dynsym range is [0xE4, 0x133]
ld.lld: error: section .ARM.exidx virtual address range overlaps with .hash >>> .ARM.exidx range is [0x90, 0xCF] >>> .hash range is [0xB4, 0xE3]
ld.lld: error: section .ARM.exidx load address range overlaps with .hash >>> .ARM.exidx range is [0x90, 0xCF] >>> .hash range is [0xB4, 0xE3]
This was fixed in ld.lld 12 with a change to match GNU ld's semantics of placing non-SHF_ALLOC sections after SHF_ALLOC sections.
To workaround this issue, move the .ARM.exidx section before the .comment, .symtab, .strtab, and .shstrtab sections (ELF_DETAILS) so that those sections remain contiguous with the .ARM.attributes section.
Fixes: 5c4fb60816ea ("arm64: vdso32: add ARM.exidx* sections") Signed-off-by: Nathan Chancellor <nathan@kernel.org> --- arch/arm64/kernel/vdso32/vdso.lds.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/vdso32/vdso.lds.S b/arch/arm64/kernel/vdso32/vdso.lds.S index 6e67a6524d58..c25bed8e6df1 100644 --- a/arch/arm64/kernel/vdso32/vdso.lds.S +++ b/arch/arm64/kernel/vdso32/vdso.lds.S @@ -56,8 +56,8 @@ SECTIONS .rel.dyn : { *(.rel*) } - ELF_DETAILS .ARM.exidx : { *(.ARM.exidx*) } + ELF_DETAILS .ARM.attributes 0 : { *(.ARM.attributes) } /DISCARD/ : { -- 2.37.0
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