Commit Graph

2 Commits

Author SHA1 Message Date
Zachary Turner de6a487d70 [MSF] Fix FPM interval calcluation
We have some code to try to determine how many pieces an MSF
Free Page Map is split into, and this code had an off by one
error which would cause the calculation to be incorrect when
there were exactly 4096*k + 1 blocks in an MSF file.

Original investigation and patch outline by Colden Cullen.

Differential Revision: https://reviews.llvm.org/D41742

llvm-svn: 321880
2018-01-05 18:12:14 +00:00
Zachary Turner 9fb9d71d3e [pdb/lld] Write a valid FPM.
The PDB reserves certain blocks for the FPM that describe which
blocks in the file are allocated and which are free.  We weren't
filling that out at all, and in some cases we were even stomping
it with incorrect data.  This patch writes a correct FPM.

Differential Revision: https://reviews.llvm.org/D36235

llvm-svn: 309896
2017-08-02 22:31:39 +00:00