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-rw-r--r--meta/recipes-devtools/elfutils/files/0002-Fix-elf_cvt_gunhash-if-dest-and-src-are-same.patch40
1 files changed, 40 insertions, 0 deletions
diff --git a/meta/recipes-devtools/elfutils/files/0002-Fix-elf_cvt_gunhash-if-dest-and-src-are-same.patch b/meta/recipes-devtools/elfutils/files/0002-Fix-elf_cvt_gunhash-if-dest-and-src-are-same.patch
new file mode 100644
index 0000000000..96c2565e3e
--- /dev/null
+++ b/meta/recipes-devtools/elfutils/files/0002-Fix-elf_cvt_gunhash-if-dest-and-src-are-same.patch
@@ -0,0 +1,40 @@
+From f8e4118b60a9b54950437006a82b4047f38f5347 Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Tue, 15 Aug 2017 17:13:59 +0800
+Subject: [PATCH] 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 <BaoShan.Pang@windriver.com>
+
+Rebase to 0.170
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+
+---
+ libelf/gnuhash_xlate.h | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+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];