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| author | Ed Maste <emaste@freebsd.org> | 2018-05-10 11:12:18 +0000 |
|---|---|---|
| committer | Ed Maste <emaste@freebsd.org> | 2018-05-10 11:12:18 +0000 |
| commit | 6556aa6848926a7defd52fdd80f1c25dcc6275bc (patch) | |
| tree | b61857c79ab8dfcb1ca574ea7cd00e198403147c /llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp | |
| parent | d621037788c3038a57e13eacb0d537954bc1556c (diff) | |
| download | bcm5719-llvm-6556aa6848926a7defd52fdd80f1c25dcc6275bc.tar.gz bcm5719-llvm-6556aa6848926a7defd52fdd80f1c25dcc6275bc.zip | |
[ELF] Omit PT_NOTE for SHT_NOTE without SHF_ALLOC
A non-alloc note section should not have a PT_NOTE program header.
Found while linking ghc (Haskell compiler) with lld on FreeBSD.
ghc emits a .debug-ghc-link-info note section (as the name suggests, it
contains link information) as a SHT_NOTE section without SHF_ALLOC set.
For this case ld.bfd does not emit a PT_NOTE segment for the
.debug-ghc-link-info section. lld previously emitted a PT_NOTE with
p_vaddr = 0 and FreeBSD's rtld segfaulted when trying to parse a note at
address 0.
llvm.org/pr37361
Differential Revision: https://reviews.llvm.org/D46623
llvm-svn: 331973
Diffstat (limited to 'llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp')
0 files changed, 0 insertions, 0 deletions
