steve
/
factor
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

VM: better? comment for uninitialized_blocks

char-rename
Björn Lindqvist 2016-09-28 20:38:52 +02:00
parent 91843ef22d
commit 603f5f9bbf
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
vm/code_heap.hpp
View File

@ -19,11 +19,18 @@ struct code_heap {
// Memory allocator // Memory allocator
free_list_allocator<code_block>* allocator; free_list_allocator<code_block>* allocator;
// For fast lookup of blocks from addresses.
std::set<cell> all_blocks; std::set<cell> all_blocks;
// Keys are blocks which need to be initialized by initialize_code_block().
// Values are literal tables. Literal table arrays are GC roots until the // Code blocks are initialized in two steps in
// time the block is initialized, after which point they are discarded. // primitive_modify_code_heap() because they might reference each
// other. First they are all allocated and placed in this map with
// their literal tables which are GC roots until the block is
// initialized. Then they are all initialized by
// initialize_code_block() which resolves relocations and updates
// addresses. Uninitialized blocks instructions must not be visited
// by GC.
std::map<code_block*, cell> uninitialized_blocks; std::map<code_block*, cell> uninitialized_blocks;
// Code blocks which may reference objects in the nursery // Code blocks which may reference objects in the nursery