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Solaris Fixes #1
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as provided by http://www.inf.puc-rio.br/~roberto/lpeg/ on 2016-05-26 `MD5 (lpeg-1.0.0.tar.gz) = 0aec64ccd13996202ad0c099e2877ece`
Solaris (OmniOS, Illumos) version of luajit does not support support
allocation of lightuserdata on the stack. This gives errors like this:
```
$ luajit test.lua
General tests for LPeg library
version 1.0.0
luajit: bad light userdata pointer
stack traceback:
[C]: in function 'match'
test.lua:58: in main chunk
[C]: at 0x00402d50
```
This commit patch fixes this behavior by moving the allocations to the
heap.
Original Author: Jonas Kunze.
| const char *match (lua_State *L, const char *o, const char *s, const char *e, | ||
| Instruction *op, Capture *capture, int ptop) { | ||
| Stack stackbase[INITBACK]; | ||
| Stack *stackbase = calloc(INITBACK, sizeof(Stack)); |
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No sanity check present in case of failure.
By using the assert macro the process will exit if calloc fails. There is little chance to recover from a failed allocation. Moreover assert() is used at other places already.
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On operating systems like Solaris and Illumos where the stack grows down, lightuserdata and user data cannot be assigned from the stack. This commit patch fixes this behaviour by moving the allocations to the heap (using calloc).
We also ran into symbol collisions (
compile) when linking the library with our codebase. This is also addressed in a separate commit.