powerpc/vdso: Remove unused ENTRY in linker scripts
When linking vdso{32,64}.so.dbg with ld.lld, there is a warning about not finding _start for the starting address: ld.lld: warning: cannot find entry symbol _start; not setting start address ld.lld: warning: cannot find entry symbol _start; not setting start address Looking at GCC + GNU ld, the entry point address is 0x0: $ llvm-readelf -h vdso{32,64}.so.dbg &| rg "(File|Entry point address):" File: vdso32.so.dbg Entry point address: 0x0 File: vdso64.so.dbg Entry point address: 0x0 This matches what ld.lld emits: $ powerpc64le-linux-gnu-readelf -p .comment vdso{32,64}.so.dbg File: vdso32.so.dbg String dump of section '.comment': [ 0] Linker: LLD 14.0.0 [ 14] clang version 14.0.0 (Fedora 14.0.0-1.fc37) File: vdso64.so.dbg String dump of section '.comment': [ 0] Linker: LLD 14.0.0 [ 14] clang version 14.0.0 (Fedora 14.0.0-1.fc37) $ llvm-readelf -h vdso{32,64}.so.dbg &| rg "(File|Entry point address):" File: vdso32.so.dbg Entry point address: 0x0 File: vdso64.so.dbg Entry point address: 0x0 Remove ENTRY to remove the warning, as it is unnecessary for the vDSO to function correctly. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220511185001.3269404-2-nathan@kernel.org
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@ -13,7 +13,6 @@ OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle")
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OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
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#endif
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OUTPUT_ARCH(powerpc:common)
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ENTRY(_start)
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SECTIONS
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{
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@ -13,7 +13,6 @@ OUTPUT_FORMAT("elf64-powerpcle", "elf64-powerpcle", "elf64-powerpcle")
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OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc", "elf64-powerpc")
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#endif
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OUTPUT_ARCH(powerpc:common64)
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ENTRY(_start)
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SECTIONS
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{
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