A mirror of https://github.com/lua/lua https://git.lua4.win/lua/atom?h=v5.4.1 2020-08-18T17:42:11+00:00 2020-08-18T17:42:11+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-08-18T17:42:11+00:00 urn:sha1:6bc0f13505bf5d4f613d725fe008c79e72f83ddf When "undumping" a long string, the function 'loadVector' can call the reader function, which can run the garbage collector, which can collect the string being read. So, the string must be anchored during the call to 'loadVector'. 2020-08-13T17:31:27+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-08-13T17:31:27+00:00 urn:sha1:f7ce7e5faae69fcab0126d8bfd34b685f1dcb019 This commit fixes a bug introduced in commit 9cf3299fa. TOUCHED2 objects are always black while the mutator runs, but they can become temporarily gray inside a minor collection (e.g., if the object is a weak table). 2020-08-07T17:45:20+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-08-07T17:45:20+00:00 urn:sha1:f13dc59416afa8fc93bb3d784d1a73e49e1b5b09 Test uses an extra bit in 'marked' to mark all elements in gray lists and then check against elements colored gray. 2020-08-07T14:21:44+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-08-07T14:21:44+00:00 urn:sha1:7c3cb71fa48fbe84d9d9c664eb646446fb80898b Tables were using this bit to indicate their array sizes were real ('isrealasize'), but this bit can be useful for tests. Instead, they can use bit 7 of their 'flag' field for that purpose. (There are only six fast-access metamethods.) This 'flag' field only exists in tables, so this use does not affect other types. 2020-07-29T20:05:47+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-29T20:05:47+00:00 urn:sha1:0dc5deca1c0182a4a3db2fcfd7bc721f27fb352b OLD1 objects can be potentially anywhere in the 'allgc' list (up to 'reallyold'), but frequently they are all after 'old1' (natural evolution of survivals) or do not exist at all (when all objects die young). So, instead of 'markold' starts looking for them always from the start of 'allgc', the collector keeps an extra pointer, 'firstold1', that points to the first OLD1 object in the 'allgc' list, or is NULL if there are no OLD1 objects in that list. 2020-07-27T16:23:05+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-27T16:23:05+00:00 urn:sha1:ae5b5ba529753c7a653901ffc29b5ea24c3fdf3a Line-hook handling was accessing debug info. without checking whether it was present. 2020-07-27T13:26:20+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-27T13:26:20+00:00 urn:sha1:a6da1472c0c5e05ff249325f979531ad51533110 Barriers cannot be active during sweep, even in generational mode. (Although gen. mode is not incremental, it can hit a barrier when deleting a thread and closing its upvalues.) The colors of objects are being changed during sweep and, therefore, cannot be trusted. 2020-07-15T19:01:03+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-15T19:01:03+00:00 urn:sha1:1ecfbfa1a1debd2258decdf7c1954ac6f9761699 2020-07-13T16:39:02+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-13T16:39:02+00:00 urn:sha1:e1d8770f12542d34a3e32b825c95b93f8a341ee1 When entering a coroutine, the computation of nCcalls added 'from->nci' to correct for preallocated CallInfos, but 'nci' includes also the Callinfos already used. 2020-07-13T16:37:01+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-07-13T16:37:01+00:00 urn:sha1:0f1cd0eba99ea6d383e75b9ae488d00ad541c210