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binutily readelf.c core snap:
next = inote.descdata + align_power (inote.descsz, 2);
this align is missing, leading to parsing errors. In my case libunwind only found 1 thread out of 4.
Signed-off-by: Jan Willeke <address@hidden>
diff --git a/src/coredump/_UCD_create.c b/src/coredump/_UCD_create.c
index ceb455d..601cb4d 100644
--- a/src/coredump/_UCD_create.c
+++ b/src/coredump/_UCD_create.c
@@ -67,7 +67,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "_UCD_internal.h"
#define NOTE_DATA(_hdr) STRUCT_MEMBER_P((_hdr), sizeof (Elf32_Nhdr) + UNW_ALIGN((_hdr)->n_namesz, 4))
-#define NOTE_SIZE(_hdr) (sizeof (Elf32_Nhdr) + UNW_ALIGN((_hdr)->n_namesz, 4) + (_hdr)->n_descsz)
+#define NOTE_SIZE(_hdr) (sizeof (Elf32_Nhdr) + UNW_ALIGN((_hdr)->n_namesz, 4) + UNW_ALIGN((_hdr)->n_descsz, 4))
#define NOTE_NEXT(_hdr) STRUCT_MEMBER_P((_hdr), NOTE_SIZE(_hdr))
#define NOTE_FITS_IN(_hdr, _size) ((_size) >= sizeof (Elf32_Nhdr) && (_size) >= NOTE_SIZE (_hdr))
#define NOTE_FITS(_hdr, _end) NOTE_FITS_IN((_hdr), (unsigned long)((char *)(_end) - (char *)(_hdr)))
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