summaryrefslogtreecommitdiffstats
path: root/meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch')
-rw-r--r--meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch b/meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch
new file mode 100644
index 0000000000..62e11a5e7f
--- /dev/null
+++ b/meta/recipes-devtools/patchelf/patchelf/alignmentfix.patch
@@ -0,0 +1,42 @@
1If a binary has multiple SHT_NOTE sections and corresponding PT_NOTE
2headers, we can see the error:
3
4patchelf: cannot normalize PT_NOTE segment: non-contiguous SHT_NOTE sections
5
6if the SHT_NOTE sections aren't sized to end on aligned boundaries. An example
7would be a binary with:
8
9 [ 2] .note.ABI-tag NOTE 00000000000002f4 000002f4
10 0000000000000020 0000000000000000 A 0 0 4
11 [ 3] .note.gnu.propert NOTE 0000000000000318 00000318
12 0000000000000030 0000000000000000 A 0 0 8
13 [ 4] .note.gnu.build-i NOTE 0000000000000348 00000348
14 0000000000000024 0000000000000000 A 0 0 4
15
16 NOTE 0x0000000000000318 0x0000000000000318 0x0000000000000318
17 0x0000000000000030 0x0000000000000030 R 0x8
18 NOTE 0x00000000000002f4 0x00000000000002f4 0x00000000000002f4
19 0x0000000000000078 0x0000000000000074 R 0x4
20
21since the PT_NOTE section at 2f4 covers [2] and [3] but the code
22calclates curr_off should be 314, not the 318 in the binary. This
23is an alignment issue.
24
25To fix this, we need to round curr_off to the next section alignment.
26
27Upstream-Status: Submitted [https://github.com/NixOS/patchelf/pull/274]
28Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
29
30Index: git/src/patchelf.cc
31===================================================================
32--- git.orig/src/patchelf.cc
33+++ git/src/patchelf.cc
34@@ -1035,6 +1035,8 @@ void ElfFile<ElfFileParamNames>::normali
35 phdrs.push_back(new_phdr);
36
37 curr_off += size;
38+ /* The next section offset would be aligned */
39+ curr_off = roundUp(curr_off, sectionAlignment);
40 }
41 }
42 wri(hdr->e_phnum, phdrs.size());