From: Andreas Schwab Date: Fri, 5 Feb 2016 18:50:03 +0000 (+0100) Subject: powerpc: Fix dedotify for binutils >= 2.26 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f15838e9cac8f78f0cc506529bb9d3b9fa589c1f;p=linux-beck.git powerpc: Fix dedotify for binutils >= 2.26 Since binutils 2.26 BFD is doing suffix merging on STRTAB sections. But dedotify modifies the symbol names in place, which can also modify unrelated symbols with a name that matches a suffix of a dotted name. To remove the leading dot of a symbol name we can just increment the pointer into the STRTAB section instead. Backport to all stables to avoid breakage when people update their binutils - mpe. Cc: stable@vger.kernel.org Signed-off-by: Andreas Schwab Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index ac64ffdb52c8..08b7a40de5f8 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -340,7 +340,7 @@ static void dedotify(Elf64_Sym *syms, unsigned int numsyms, char *strtab) if (name[0] == '.') { if (strcmp(name+1, "TOC.") == 0) syms[i].st_shndx = SHN_ABS; - memmove(name, name+1, strlen(name)); + syms[i].st_name++; } } }