Cheri-research/snmalloc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

address.h: add pointer alignment functions

Browse Source 
More explicit than address_cast and bitwise and
This commit is contained in:
Nathaniel Filardo
2019-05-07 13:21:02 +01:00
parent 20e804728b
commit ef7985510c
6 changed files with 40 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/mem/largealloc.h
View File

@@ -166,11 +166,12 @@ namespace snmalloc
remaining -= size;
}
auto page_start = bits::align_down(address_cast(p), OS_PAGE_SIZE);
auto page_end = bits::align_up(address_cast(p) + size, OS_PAGE_SIZE);
auto page_start = pointer_align_down<OS_PAGE_SIZE, char>(p);
auto page_end =
pointer_align_up<OS_PAGE_SIZE, char>(pointer_offset(p, size));
PAL::template notify_using<NoZero>(
pointer_cast<void>(page_start), page_end - page_start);
page_start, static_cast<size_t>(page_end - page_start));
return new (p) T(std::forward<Args...>(args)...);
}
@@ -295,8 +296,7 @@ namespace snmalloc
reserved_start =
memory_provider.template reserve<false>(&add, SUPERSLAB_SIZE);
reserved_end = pointer_offset(reserved_start, add);
reserved_start = pointer_cast<void>(
bits::align_up(address_cast(reserved_start), SUPERSLAB_SIZE));
reserved_start = pointer_align_up<SUPERSLAB_SIZE>(reserved_start);
if (add < need)
return false;