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Revert "[lldb] Pin the shared cache when iterating over its images"

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This reverts commit af969141fa because it
didn't have the intended performance benefit to offset the increase in
our (virtual) memory usage.
This commit is contained in:
Jonas Devlieghere
2022-04-14 15:05:07 -07:00
parent 142cbd500b
commit 03049c5125
1 changed files with 1 additions and 3 deletions
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4
lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
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@@ -2712,7 +2712,7 @@ void ObjectFileMachO::ParseSymtab(Symtab &symtab) {
if (process_shared_cache_uuid.IsValid() &&
process_shared_cache_uuid != UUID::fromOptionalData(&cache_uuid, 16))
return;
const bool pinned = dyld_shared_cache_pin_mapping(shared_cache);
dyld_shared_cache_for_each_image(shared_cache, ^(dyld_image_t image) {
uuid_t dsc_image_uuid;
if (found_image)
@@ -2769,8 +2769,6 @@ void ObjectFileMachO::ParseSymtab(Symtab &symtab) {
nlist_count = nlistCount;
});
});
if (pinned)
dyld_shared_cache_unpin_mapping(shared_cache);
});
if (nlist_buffer) {
DataExtractor dsc_local_symbols_data(nlist_buffer,