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5455 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 6aabf4b15e Details in some header files 
Identifier LUA_NUMTAGS was deprecated (changed to LUA_NUMTYPES) +
better handling of some inclusion loops.
 2022-12-14 16:20:39 -03:00
Roberto Ierusalimschy fa2f294dd1 Reduce calls to 'luaC_step' when GC is stopped 2022-12-09 16:35:19 -03:00
Roberto Ierusalimschy 82fae58e25 Details 
Parentheses and comments.
 2022-12-02 11:33:09 -03:00
Roberto Ierusalimschy 9a77f57edc Stop GC while building initial state 2022-11-23 14:17:28 -03:00
Roberto Ierusalimschy be908a7d4d Removed unused field 'UpVal.tbc' 2022-11-08 10:15:10 -03:00
Roberto Ierusalimschy 9ede317c70 Threads are created like other objects 
Using a version of 'luaC_newobj' that allows offsets (extra space
before the object itself).
 2022-11-01 17:14:01 -03:00
Roberto Ierusalimschy ee645472eb Stack reallocation done with a single realloc 
To avoid the need of both the old and the new stack addresses valid
at the same time, to correct the pointers to the stack, these pointers
are changed to offsets before the reallocation and then changed back
to pointers after the reallocation.
 2022-10-31 15:06:20 -03:00
Roberto Ierusalimschy 413a393e62 Stack indices changed to union's 
That will allow to change pointers to offsets while reallocating
the stack.
 2022-10-29 12:06:37 -03:00
Roberto Ierusalimschy ba089bcb08 Details 
Added comments in the makefile about other useful '-fsanitize' options.
 2022-10-26 10:15:09 -03:00
Roberto Ierusalimschy 1e64c1391f Bug: stack overflow with nesting of coroutine.close 2022-10-25 16:44:06 -03:00
Roberto Ierusalimschy b85816b9a8 Removed test function 'luaH_isdummy' 
It was not being used anywhere.
 2022-10-21 09:18:13 -03:00
Roberto Ierusalimschy c954db3924 Option '-l g=mod' added to the manual 
Plus some other improvements in the manual.
 2022-10-19 16:30:39 -03:00
Roberto Ierusalimschy 14d2803e55 Details 
Some cast operations rewritten to use respective macros.
 2022-10-19 16:29:54 -03:00
Roberto Ierusalimschy 7f12bf40c4 Portability issue in a test for 'string.format' 2022-10-19 16:20:11 -03:00
Roberto Ierusalimschy 26be27459b Negation in constant folding of '>>' may overflow 2022-09-23 11:08:10 -03:00
Roberto Ierusalimschy cfbe378f90 Small simplification in overflow check in 'getfield' 
Subtracting a small non-negative int from a non-negative int cannot
overflow, and adding a non-negative int to INT_MIN cannot overflow.
 2022-09-23 10:57:35 -03:00
Roberto Ierusalimschy a1089b415a Bug: 'utf8.codes' accepts spurious continuation bytes 2022-09-23 10:41:16 -03:00
Roberto Ierusalimschy f8c4c4fcf2 New test for table rehash 2022-09-16 17:05:22 -03:00
Roberto Ierusalimschy 71bc69c2af Note in the manual about using '...' as an expression 2022-09-08 17:21:02 -03:00
Roberto Ierusalimschy cd56f222b7 Corrected error message in 'table.remove' 2022-09-07 12:21:46 -03:00
Roberto Ierusalimschy 69b77b6fde Changed the growth rate of string buffers 
The growth rate of string buffers was reduced from 2 to 1.5 (3/2).
As string buffers start larger (256~1024 bytes), they don't need to
grow that fast. Moreover, a lower rate allows multiplicative growth up
to larger sizes (3/2 of the maximum). (After that, the growth becomes
linear, which is mostly useless.)
 2022-09-06 10:58:55 -03:00
Roberto Ierusalimschy 997f11f543 Bug: 'break' may not properly close variable in a 'for' loop 
Function 'leaveblock' was generating "break" label before removing
variables from the closing block. If 'createlabel' created a 'close'
instruction (which it did when matching a goto/break that exited
the scope of an upvalue), that instruction would use the wrong level.
 2022-08-24 17:36:47 -03:00
Roberto Ierusalimschy 02060b7a37 Simpler handling of Byte Order Mark (BOM) 2022-08-23 16:08:53 -03:00
Roberto Ierusalimschy a1f77a234a Bug: set correct pause when (re)entering gen. collection. 2022-08-23 16:06:23 -03:00
Roberto Ierusalimschy c6cea857a4 Better documentation for 'multires' expressions 
Manual has a new section explaining multires expressions, lists of
expressions, and adjustments. This commit also corrects some comments
in the code.
 2022-08-19 14:10:18 -03:00
Roberto Ierusalimschy d61b0c6028 More checks and documentation for uses of EXTRA_STACK 2022-05-26 15:14:54 -03:00
Roberto Ierusalimschy 196bb94d66 Bug: 'lua_settop' may use an invalid pointer to stack 2022-05-25 17:41:39 -03:00
Roberto Ierusalimschy 603b2c64ad 'luaV_concat' can use invalidated pointer to stack 
Bug introduced in commit 42d40581.
 2022-05-23 17:50:47 -03:00
Roberto Ierusalimschy 4a00f61276 'lua_checkstack' doesn't need to check stack overflow 
'luaD_growstack' already checks that. This commit also fixes an
internal bug in 'luaD_growstack': a large 'n' could cause an arithmetic
overflow when computing 'needed'.
 2022-05-23 10:38:03 -03:00
Roberto Ierusalimschy 42d40581dd Save stack space while handling errors 
Because error handling (luaG_errormsg) uses slots from EXTRA_STACK,
and some errors can recur (e.g., string overflow while creating an
error message in 'luaG_runerror', or a C-stack overflow before calling
the message handler), the code should use stack slots with parsimony.

This commit fixes the bug "Lua-stack overflow when C stack overflows
while handling an error".
 2022-05-20 13:14:33 -03:00
Roberto Ierusalimschy e435aaabef Details (identation and typos) 2022-05-10 11:13:39 -03:00
Roberto Ierusalimschy 315639d3bb Factoring out common parts of 'codearith' and 'codebitwise' 2022-05-06 17:52:46 -03:00
Roberto Ierusalimschy c764ca71a6 Bug: Wrong code generation in bitwise operations 2022-04-25 14:42:51 -03:00
Roberto Ierusalimschy 295cde9454 New release number (5.4.5) 2022-04-07 10:52:15 -03:00
Roberto Ierusalimschy f3cfd5bf2b Details 
Comments + manual + identation + asserts about stack limits that were
not allowing the use of the full stack
 2022-04-01 13:55:44 -03:00
Roberto Ierusalimschy 8426d9b4d4 Avoid computing invalid addresses 
luaV_execute should compute 'ra' only when the instruction uses it.
Computing an illegal address is undefined behavior even if the address
is never dereferenced.
 2022-02-18 13:22:25 -03:00
Roberto Ierusalimschy 1f3c6f4534 Bug: Lua can generate wrong code when _ENV is <const> 2022-02-15 12:28:46 -03:00
Roberto Ierusalimschy 25b143dd34 Bug: lua.c assumes that argv has at least one element 2022-02-07 10:16:35 -03:00
Roberto Ierusalimschy 5d708c3f9c Explanation of borders in the manual 
The explanation includes the limit case of maxinteger being a border.
It also avoids the term "natural", which might include large floats
with natural values.
 2022-01-13 08:15:03 -03:00
Roberto Ierusalimschy 8dd2c912d2 Detail 
Warnings with clang when using long double for Lua floats.
 2022-01-03 09:12:17 -03:00
Roberto Ierusalimschy 05ac2409ee New year (2022) 2022-01-02 07:11:08 -03:00
Roberto Ierusalimschy 597a53bbc6 Bug: finalizer calling exit can corrupt finalization order 
'os.exit' can call lua_close again, separating new finalizers
created after all previous finalizers were already separated.
 2021-12-22 09:00:52 -03:00
Roberto Ierusalimschy 86ec152433 Details 
correction in macro for hard tests + type in comment
 2021-12-21 07:39:25 -03:00
Roberto Ierusalimschy cf613cdc6f Bug: finalizers can be called with an invalid stack 
The call to 'checkstackGC' can run finalizers, which will find an
inconsistent CallInfo, as 'ci' is half updated at the point of call.
 2021-12-15 11:29:07 -03:00
Roberto Ierusalimschy 066e0f93c4 Fix debug information about finalizers 
The flag CIST_FIN does not mark a finalizer, but the function that was
running when the finalizer was called. (So, the function did not call
the finalizer, but it looks that way in the stack.)
 2021-12-14 12:50:05 -03:00
Roberto Ierusalimschy 0bfc572e51 Bug: GC is not reentrant 
As the GC is not reentrant, finalizers should not be able to invoke it.
 2021-12-13 10:41:17 -03:00
Roberto Ierusalimschy 1de95e97ef Bug: Lua stack still active when closing a state 2021-12-10 10:53:54 -03:00
Roberto Ierusalimschy ad3942adba Main 'mainposition' replaced by 'mainpositionTV' 
Handle values in table keys as the special cases they are, and not
the other way around.
 2021-11-25 11:07:17 -03:00
Roberto Ierusalimschy 48835c76c8 Wrong assert in 'collectvalidlines' 2021-11-25 10:11:05 -03:00
Roberto Ierusalimschy 6b3e116d44 Corrected bug in 'luaD_tryfuncTM' 
The pointer to the metamethod can be invalidated by a finalizer that
can run during a GC in 'checkstackGCp'. (This commit also fixes a
detail in the manual.) Bug introduced in commit 91673a8ec.
 2021-11-16 14:35:06 -03:00