| commit | f9f6c123cd6403360e2bc1768ab90a579a4f3a35 | |
| author | emaste <emaste@FreeBSD.org> | |
| Tue, 19 Jul 2016 00:47:00 +0000 (19 00:47 +0000) | ||
| committer | emaste <emaste@FreeBSD.org> | |
| Tue, 19 Jul 2016 00:47:00 +0000 (19 00:47 +0000) | ||
| tree | 1de363e057da83a574d81f846fae5bbe970a9474 | treesnapshot (tar.gz zip) |
| parent | 8222001d47ea868b986b5c9c383752c999e3b548 | commitdiff |
llvm-libunwind: use conventional (non-Darwin) X86 register numbers
For historical reasons Darwin/i386 has ebp and esp swapped in the
eh_frame register numbering. That is:
Darwin Other
Reg # eh_frame eh_frame DWARF
===== ======== ======== =====
4 ebp esp esp
5 esp ebp ebp
Although the UNW_X86_* constants are not supposed to be coupled to
DWARF / eh_frame numbering they are currently conflated in LLVM
libunwind, and thus we require the non-Darwin numbering.
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
For historical reasons Darwin/i386 has ebp and esp swapped in the
eh_frame register numbering. That is:
Darwin Other
Reg # eh_frame eh_frame DWARF
===== ======== ======== =====
4 ebp esp esp
5 esp ebp ebp
Although the UNW_X86_* constants are not supposed to be coupled to
DWARF / eh_frame numbering they are currently conflated in LLVM
libunwind, and thus we require the non-Darwin numbering.
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
| contrib/llvm/projects/libunwind/include/libunwind.h | diffblobblamehistory |