https://issues.apache.org/bugzilla/show_bug.cgi?id=52252
Bug #: 52252
Summary: luajit support broken for (at least) luajit 2.0
Product: Apache httpd-2
Version: 2.4-HEAD
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_lua
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
luajit 2.0 uses headers and library with different names than normal lua. For
example on Debian, headers are in /usr/include/luajit-2.0/ and the library is
called libluajit-5.1.so.2.
The library/header detection code of mod_lua does not have a special case for
luajit at all and does not look for the pathnames of luajit.
Also, if I fix the linking, httpd aborts with this message:
[Sun Nov 27 20:37:19.619445 2011] [lua:debug] [pid 22767] mod_lua.c(206):
[client 127.0.0.1:54230] request details scope:0,
filename:/home/stf/apache/perl-framework/t/htdocs/modules/lua/translate.lua,
function:translate_name
PANIC: unprotected error in call to Lua API (attempt to index a string value)
Commenting out the calls to luaopen_jit and loadjitmodule in lua_vmprep.c
"fixes" this insofar as t/modules/lua.t runs without error.
I don't have access to luajit 1.x, so I can't say if this is just an
incompatibility with 2.0. But considering that the lua 5.1 manual says that
"The luaopen_* functions (to open libraries) cannot be called directly, like a
regular C function. They must be called through Lua, like a Lua function." [1],
I think calling luaopen_jit is always wrong.
[1] http://www.lua.org/manual/5.1/manual.html#7.3
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