From b7936bacf0cc89bdda6722d317274bd4a3af840a Mon Sep 17 00:00:00 2001 From: Roy Li Date: Tue, 28 Oct 2014 13:09:41 +0800 Subject: elfutils: fix elf_cvt_gnuhash The 'dest' and 'src' can be same, we need to save the value of src32[2] before swaping it. Signed-off-by: Roy Li Signed-off-by: Richard Purdie --- .../elfutils/elfutils/Fix_elf_cvt_gunhash.patch | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 meta/recipes-devtools/elfutils/elfutils/Fix_elf_cvt_gunhash.patch (limited to 'meta/recipes-devtools/elfutils/elfutils/Fix_elf_cvt_gunhash.patch') diff --git a/meta/recipes-devtools/elfutils/elfutils/Fix_elf_cvt_gunhash.patch b/meta/recipes-devtools/elfutils/elfutils/Fix_elf_cvt_gunhash.patch new file mode 100644 index 0000000000..374cba555e --- /dev/null +++ b/meta/recipes-devtools/elfutils/elfutils/Fix_elf_cvt_gunhash.patch @@ -0,0 +1,29 @@ +Fix elf_cvt_gunhash if dest and src are same. + +Upstream-status: Pending + +The 'dest' and 'src' can be same, we need to save the value of src32[2] +before swaping it. + +Signed-off-by: Baoshan Pang +diff --git a/libelf/gnuhash_xlate.h b/libelf/gnuhash_xlate.h +index 6faf113..04d9ca1 100644 +--- a/libelf/gnuhash_xlate.h ++++ b/libelf/gnuhash_xlate.h +@@ -40,6 +40,7 @@ elf_cvt_gnuhash (void *dest, const void *src, size_t len, int encode) + words. We must detangle them here. */ + Elf32_Word *dest32 = dest; + const Elf32_Word *src32 = src; ++ Elf32_Word save_src32_2 = src32[2]; // dest could be equal to src + + /* First four control words, 32 bits. */ + for (unsigned int cnt = 0; cnt < 4; ++cnt) +@@ -50,7 +51,7 @@ elf_cvt_gnuhash (void *dest, const void *src, size_t len, int encode) + len -= 4; + } + +- Elf32_Word bitmask_words = encode ? src32[2] : dest32[2]; ++ Elf32_Word bitmask_words = encode ? save_src32_2 : dest32[2]; + + /* Now the 64 bit words. */ + Elf64_Xword *dest64 = (Elf64_Xword *) &dest32[4]; -- cgit 1.2.3-korg