33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From: Andreas Schwab <schwab@linux-m68k.org>
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Date: Fri, 5 Feb 2016 19:50:03 +0100
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Subject: powerpc: Fix dedotify for binutils >= 2.26
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Origin: https://git.kernel.org/linus/f15838e9cac8f78f0cc506529bb9d3b9fa589c1f
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Since binutils 2.26 BFD is doing suffix merging on STRTAB sections. But
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dedotify modifies the symbol names in place, which can also modify
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unrelated symbols with a name that matches a suffix of a dotted name. To
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remove the leading dot of a symbol name we can just increment the pointer
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into the STRTAB section instead.
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Backport to all stables to avoid breakage when people update their
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binutils - mpe.
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Cc: stable@vger.kernel.org
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Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
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Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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---
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arch/powerpc/kernel/module_64.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/powerpc/kernel/module_64.c
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+++ b/arch/powerpc/kernel/module_64.c
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@@ -335,7 +335,7 @@ static void dedotify(Elf64_Sym *syms, un
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if (syms[i].st_shndx == SHN_UNDEF) {
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char *name = strtab + syms[i].st_name;
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if (name[0] == '.')
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- memmove(name, name+1, strlen(name));
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+ syms[i].st_name++;
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}
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}
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}
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