| commit | 0ee638e78a8b96614ef0b241e982de9ca89c1549 | [log] [tgz] |
|---|---|---|
| author | Tess Strickland <sstrickl@google.com> | Tue Jul 13 10:45:26 2021 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Tue Jul 13 10:45:26 2021 +0000 |
| tree | 0f546f58e6cee8c78f5e9c0561470ffe2e18835b | |
| parent | 6c92e18952e21ee2e94603ffa73adc79a55f85f1 [diff] |
[vm] Change encoding of snapshot and position-relative relocations. Previously in Elf::Relocation, symbol names had this mapping: * nullptr: relative to the start of the snapshot * ".": relative to the position of the relocation * otherwise, relative to the given static symbol value Change this as follows: * nullptr: relative to the position of the relocation * "": relative to the start of the snapshot * otherwise, relative to the given static symbol value This uses the fact that in ELF, symbol tables always have an initial symbol with a name of "" that has a value of 0, so now we only have to handle the nullptr case specially there, instead of having to handle three different cases. TEST=Refactoring, so existing tests of snapshots. Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-dwarf-linux-product-x64-try Change-Id: Icb428551091e5fcf04facd34a5bf57ea0d664fa4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/206544 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Tess Strickland <sstrickl@google.com>
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