lua: add a recipe from meta-oe

Lua is a hard dependency in rpm 4.17.

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

7 files changed, 457 insertions, 0 deletions

diff --git a/meta/recipes-devtools/lua/lua/0001-Allow-building-lua-without-readline-on-Linux.patch b/meta/recipes-devtools/lua/lua/0001-Allow-building-lua-without-readline-on-Linux.patch
new file mode 100644
index 0000000000..e767900864
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/0001-Allow-building-lua-without-readline-on-Linux.patch
@@ -0,0 +1,59 @@
+From 601ef636fc4dfb2af3e7fda88d8ea1c1d92affe4 Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Wed, 2 Oct 2019 17:54:15 +0200
+Subject: [PATCH] Allow building lua without readline on Linux
+
+Upstream-Status: Pending
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+---
+ Makefile      | 2 +-
+ src/Makefile  | 3 +++
+ src/luaconf.h | 5 +++++
+ 3 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 119110d..9f6df45 100644
+--- a/Makefile
++++ b/Makefile
+@@ -36,7 +36,7 @@ RM= rm -f
+ # == END OF USER SETTINGS -- NO NEED TO CHANGE ANYTHING BELOW THIS LINE =======
+ 
+ # Convenience platforms targets.
+-PLATS= aix bsd c89 freebsd generic linux macosx mingw posix solaris
++PLATS= aix bsd c89 freebsd generic linux linux-no-readline macosx mingw posix solaris
+ 
+ # What to install.
+ TO_BIN= lua luac
+diff --git a/src/Makefile b/src/Makefile
+index 64c78f7..5c0428a 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -109,6 +109,9 @@ generic: $(ALL)
+ linux:
+ 	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -ldl -lreadline"
+ 
++linux-no-readline:
++	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX_NO_READLINE" SYSLIBS="-Wl,-E -ldl"
++
+ macosx:
+ 	$(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_MACOSX" SYSLIBS="-lreadline"
+ 
+diff --git a/src/luaconf.h b/src/luaconf.h
+index 9eeeea6..d71ca25 100644
+--- a/src/luaconf.h
++++ b/src/luaconf.h
+@@ -64,6 +64,11 @@
+ #define LUA_USE_READLINE	/* needs some extra libraries */
+ #endif
+ 
++#if defined(LUA_USE_LINUX_NO_READLINE)
++#define LUA_USE_POSIX
++#define LUA_USE_DLOPEN		/* needs an extra library: -ldl */
++#endif
++
+ 
+ #if defined(LUA_USE_MACOSX)
+ #define LUA_USE_POSIX
+-- 
+2.17.1
+
diff --git a/meta/recipes-devtools/lua/lua/0001-Fixed-bug-barriers-cannot-be-active-during-sweep.patch b/meta/recipes-devtools/lua/lua/0001-Fixed-bug-barriers-cannot-be-active-during-sweep.patch
new file mode 100644
index 0000000000..a302874d76
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/0001-Fixed-bug-barriers-cannot-be-active-during-sweep.patch
@@ -0,0 +1,90 @@
+From 1e6df25ac28dcd89f0324177bb55019422404b44 Mon Sep 17 00:00:00 2001
+From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
+Date: Thu, 3 Sep 2020 15:32:17 +0800
+Subject: [PATCH] Fixed bug: barriers cannot be active during sweep
+
+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.
+
+Upstream-Status: Backport [https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110]
+CVE: CVE-2020-24371
+
+[Adjust code KGC_INC -> KGC_NORMAL, refer 69371c4b84becac09c445aae01d005b49658ef82]
+Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
+---
+ src/lgc.c | 33 ++++++++++++++++++++++++---------
+ 1 file changed, 24 insertions(+), 9 deletions(-)
+
+diff --git a/src/lgc.c b/src/lgc.c
+index 973c269..7af23d5 100644
+--- a/src/lgc.c
++++ b/src/lgc.c
+@@ -142,10 +142,17 @@ static int iscleared (global_State *g, const TValue *o) {
+ 
+ 
+ /*
+-** barrier that moves collector forward, that is, mark the white object
+-** being pointed by a black object. (If in sweep phase, clear the black
+-** object to white [sweep it] to avoid other barrier calls for this
+-** same object.)
++** Barrier that moves collector forward, that is, marks the white object
++** 'v' being pointed by the black object 'o'.  In the generational
++** mode, 'v' must also become old, if 'o' is old; however, it cannot
++** be changed directly to OLD, because it may still point to non-old
++** objects. So, it is marked as OLD0. In the next cycle it will become
++** OLD1, and in the next it will finally become OLD (regular old). By
++** then, any object it points to will also be old.  If called in the
++** incremental sweep phase, it clears the black object to white (sweep
++** it) to avoid other barrier calls for this same object. (That cannot
++** be done is generational mode, as its sweep does not distinguish
++** whites from deads.)
+ */
+ void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v) {
+   global_State *g = G(L);
+@@ -154,7 +161,8 @@ void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v) {
+     reallymarkobject(g, v);  /* restore invariant */
+   else {  /* sweep phase */
+     lua_assert(issweepphase(g));
+-    makewhite(g, o);  /* mark main obj. as white to avoid other barriers */
++    if (g->gckind == KGC_NORMAL)  /* incremental mode? */
++      makewhite(g, o);  /* mark 'o' as white to avoid other barriers */
+   }
+ }
+ 
+@@ -299,10 +307,15 @@ static void markbeingfnz (global_State *g) {
+ 
+ 
+ /*
+-** Mark all values stored in marked open upvalues from non-marked threads.
+-** (Values from marked threads were already marked when traversing the
+-** thread.) Remove from the list threads that no longer have upvalues and
+-** not-marked threads.
++** For each non-marked thread, simulates a barrier between each open
++** upvalue and its value. (If the thread is collected, the value will be
++** assigned to the upvalue, but then it can be too late for the barrier
++** to act. The "barrier" does not need to check colors: A non-marked
++** thread must be young; upvalues cannot be older than their threads; so
++** any visited upvalue must be young too.) Also removes the thread from
++** the list, as it was already visited. Removes also threads with no
++** upvalues, as they have nothing to be checked. (If the thread gets an
++** upvalue later, it will be linked in the list again.)
+ */
+ static void remarkupvals (global_State *g) {
+   lua_State *thread;
+@@ -313,9 +326,11 @@ static void remarkupvals (global_State *g) {
+       p = &thread->twups;  /* keep marked thread with upvalues in the list */
+     else {  /* thread is not marked or without upvalues */
+       UpVal *uv;
++      lua_assert(!isold(thread) || thread->openupval == NULL);
+       *p = thread->twups;  /* remove thread from the list */
+       thread->twups = thread;  /* mark that it is out of list */
+       for (uv = thread->openupval; uv != NULL; uv = uv->u.open.next) {
++        lua_assert(getage(uv) <= getage(thread));
+         if (uv->u.open.touched) {
+           markvalue(g, uv->v);  /* remark upvalue's value */
+           uv->u.open.touched = 0;
+-- 
+1.9.1
+
diff --git a/meta/recipes-devtools/lua/lua/CVE-2020-15888.patch b/meta/recipes-devtools/lua/lua/CVE-2020-15888.patch
new file mode 100644
index 0000000000..60a4125971
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/CVE-2020-15888.patch
@@ -0,0 +1,45 @@
+From 6298903e35217ab69c279056f925fb72900ce0b7 Mon Sep 17 00:00:00 2001
+From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
+Date: Mon, 6 Jul 2020 12:11:54 -0300
+Subject: [PATCH] Keep minimum size when shrinking a stack
+
+When shrinking a stack (during GC), do not make it smaller than the
+initial stack size.
+---
+ ldo.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+==== end of original header ====
+
+CVE: CVE-2020-15888
+
+Upstream-Status: backport [https://github.com/lua/lua.git]
+
+Signed-off-by: Joe Slater <joe.slater@windriver.com>
+
+====
+diff --git a/ldo.c b/ldo.c
+index c563b1d9..a89ac010 100644
+--- a/src/ldo.c
++++ b/src/ldo.c
+@@ -220,7 +220,7 @@ static int stackinuse (lua_State *L) {
+ 
+ void luaD_shrinkstack (lua_State *L) {
+   int inuse = stackinuse(L);
+-  int goodsize = inuse + (inuse / 8) + 2*EXTRA_STACK;
++  int goodsize = inuse + BASIC_STACK_SIZE;
+   if (goodsize > LUAI_MAXSTACK)
+     goodsize = LUAI_MAXSTACK;  /* respect stack limit */
+   if (L->stacksize > LUAI_MAXSTACK)  /* had been handling stack overflow? */
+@@ -229,8 +229,7 @@ void luaD_shrinkstack (lua_State *L) {
+     luaE_shrinkCI(L);  /* shrink list */
+   /* if thread is currently not handling a stack overflow and its
+      good size is smaller than current size, shrink its stack */
+-  if (inuse <= (LUAI_MAXSTACK - EXTRA_STACK) &&
+-      goodsize < L->stacksize)
++  if (inuse <= (LUAI_MAXSTACK - EXTRA_STACK) && goodsize < L->stacksize)
+     luaD_reallocstack(L, goodsize);
+   else  /* don't change stack */
+     condmovestack(L,{},{});  /* (change only for debugging) */
+-- 
+2.17.1
+
diff --git a/meta/recipes-devtools/lua/lua/CVE-2020-15945.patch b/meta/recipes-devtools/lua/lua/CVE-2020-15945.patch
new file mode 100644
index 0000000000..89ce491487
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/CVE-2020-15945.patch
@@ -0,0 +1,167 @@
+From d8d344365945a534f700c82c5dd26f704f89fef3 Mon Sep 17 00:00:00 2001
+From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
+Date: Wed, 5 Aug 2020 16:59:58 +0800
+Subject: [PATCH] Fixed bug: invalid 'oldpc' when returning to a function
+
+The field 'L->oldpc' is not always updated when control returns to a
+function; an invalid value can seg. fault when computing 'changedline'.
+(One example is an error in a finalizer; control can return to
+'luaV_execute' without executing 'luaD_poscall'.) Instead of trying to
+fix all possible corner cases, it seems safer to be resilient to invalid
+values for 'oldpc'. Valid but wrong values at most cause an extra call
+to a line hook.
+
+CVE: CVE-2020-15945
+
+[Adjust the code to be applicable to the tree]
+
+Upstream-Status: Backport [https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3]
+
+Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
+Signed-off-by: Joe Slater <joe.slater@@windriver.com>
+
+---
+ src/ldebug.c | 30 +++++++++++++++---------------
+ src/ldebug.h |  4 ++++
+ src/ldo.c    |  2 +-
+ src/lstate.c |  1 +
+ src/lstate.h |  2 +-
+ 5 files changed, 22 insertions(+), 17 deletions(-)
+
+diff --git a/src/ldebug.c b/src/ldebug.c
+index 239affb..832b16c 100644
+--- a/src/ldebug.c
++++ b/src/ldebug.c
+@@ -34,9 +34,8 @@
+ #define noLuaClosure(f)		((f) == NULL || (f)->c.tt == LUA_TCCL)
+ 
+ 
+-/* Active Lua function (given call info) */
+-#define ci_func(ci)		(clLvalue((ci)->func))
+-
++/* inverse of 'pcRel' */
++#define invpcRel(pc, p)                ((p)->code + (pc) + 1)
+ 
+ static const char *funcnamefromcode (lua_State *L, CallInfo *ci,
+                                     const char **name);
+@@ -71,20 +70,18 @@ static void swapextra (lua_State *L) {
+ 
+ /*
+ ** This function can be called asynchronously (e.g. during a signal).
+-** Fields 'oldpc', 'basehookcount', and 'hookcount' (set by
+-** 'resethookcount') are for debug only, and it is no problem if they
+-** get arbitrary values (causes at most one wrong hook call). 'hookmask'
+-** is an atomic value. We assume that pointers are atomic too (e.g., gcc
+-** ensures that for all platforms where it runs). Moreover, 'hook' is
+-** always checked before being called (see 'luaD_hook').
++** Fields 'basehookcount' and 'hookcount' (set by 'resethookcount')
++** are for debug only, and it is no problem if they get arbitrary
++** values (causes at most one wrong hook call). 'hookmask' is an atomic
++** value. We assume that pointers are atomic too (e.g., gcc ensures that
++** for all platforms where it runs). Moreover, 'hook' is always checked
++** before being called (see 'luaD_hook').
+ */
+ LUA_API void lua_sethook (lua_State *L, lua_Hook func, int mask, int count) {
+   if (func == NULL || mask == 0) {  /* turn off hooks? */
+     mask = 0;
+     func = NULL;
+   }
+-  if (isLua(L->ci))
+-    L->oldpc = L->ci->u.l.savedpc;
+   L->hook = func;
+   L->basehookcount = count;
+   resethookcount(L);
+@@ -665,7 +662,10 @@ l_noret luaG_runerror (lua_State *L, const char *fmt, ...) {
+ void luaG_traceexec (lua_State *L) {
+   CallInfo *ci = L->ci;
+   lu_byte mask = L->hookmask;
++  const Proto *p = ci_func(ci)->p;
+   int counthook = (--L->hookcount == 0 && (mask & LUA_MASKCOUNT));
++  /* 'L->oldpc' may be invalid; reset it in this case */
++  int oldpc = (L->oldpc < p->sizecode) ? L->oldpc : 0;
+   if (counthook)
+     resethookcount(L);  /* reset count */
+   else if (!(mask & LUA_MASKLINE))
+@@ -677,15 +677,15 @@ void luaG_traceexec (lua_State *L) {
+   if (counthook)
+     luaD_hook(L, LUA_HOOKCOUNT, -1);  /* call count hook */
+   if (mask & LUA_MASKLINE) {
+-    Proto *p = ci_func(ci)->p;
+     int npc = pcRel(ci->u.l.savedpc, p);
+     int newline = getfuncline(p, npc);
+     if (npc == 0 ||  /* call linehook when enter a new function, */
+-        ci->u.l.savedpc <= L->oldpc ||  /* when jump back (loop), or when */
+-        newline != getfuncline(p, pcRel(L->oldpc, p)))  /* enter a new line */
++        ci->u.l.savedpc <= invpcRel(oldpc, p) ||  /* when jump back (loop), or when */
++        newline != getfuncline(p, oldpc))  /* enter a new line */
+       luaD_hook(L, LUA_HOOKLINE, newline);  /* call line hook */
++
++    L->oldpc = npc;  /* 'pc' of last call to line hook */
+   }
+-  L->oldpc = ci->u.l.savedpc;
+   if (L->status == LUA_YIELD) {  /* did hook yield? */
+     if (counthook)
+       L->hookcount = 1;  /* undo decrement to zero */
+diff --git a/src/ldebug.h b/src/ldebug.h
+index 0e31546..c224cc4 100644
+--- a/src/ldebug.h
++++ b/src/ldebug.h
+@@ -13,6 +13,10 @@
+ 
+ #define pcRel(pc, p)	(cast(int, (pc) - (p)->code) - 1)
+ 
++/* Active Lua function (given call info) */
++#define ci_func(ci)            (clLvalue((ci)->func))
++
++
+ #define getfuncline(f,pc)	(((f)->lineinfo) ? (f)->lineinfo[pc] : -1)
+ 
+ #define resethookcount(L)	(L->hookcount = L->basehookcount)
+diff --git a/src/ldo.c b/src/ldo.c
+index 90b695f..f66ac1a 100644
+--- a/src/ldo.c
++++ b/src/ldo.c
+@@ -382,7 +382,7 @@ int luaD_poscall (lua_State *L, CallInfo *ci, StkId firstResult, int nres) {
+       luaD_hook(L, LUA_HOOKRET, -1);
+       firstResult = restorestack(L, fr);
+     }
+-    L->oldpc = ci->previous->u.l.savedpc;  /* 'oldpc' for caller function */
++    L->oldpc = pcRel(ci->u.l.savedpc, ci_func(ci)->p);  /* 'oldpc' for caller function */
+   }
+   res = ci->func;  /* res == final position of 1st result */
+   L->ci = ci->previous;  /* back to caller */
+diff --git a/src/lstate.c b/src/lstate.c
+index 9194ac3..3573e36 100644
+--- a/src/lstate.c
++++ b/src/lstate.c
+@@ -236,6 +236,7 @@ static void preinit_thread (lua_State *L, global_State *g) {
+   L->nny = 1;
+   L->status = LUA_OK;
+   L->errfunc = 0;
++  L->oldpc = 0;
+ }
+ 
+ 
+diff --git a/src/lstate.h b/src/lstate.h
+index a469466..d75eadf 100644
+--- a/src/lstate.h
++++ b/src/lstate.h
+@@ -164,7 +164,6 @@ struct lua_State {
+   StkId top;  /* first free slot in the stack */
+   global_State *l_G;
+   CallInfo *ci;  /* call info for current function */
+-  const Instruction *oldpc;  /* last pc traced */
+   StkId stack_last;  /* last free slot in the stack */
+   StkId stack;  /* stack base */
+   UpVal *openupval;  /* list of open upvalues in this stack */
+@@ -174,6 +173,7 @@ struct lua_State {
+   CallInfo base_ci;  /* CallInfo for first level (C calling Lua) */
+   volatile lua_Hook hook;
+   ptrdiff_t errfunc;  /* current error handling function (stack index) */
++  int oldpc;  /* last pc traced */
+   int stacksize;
+   int basehookcount;
+   int hookcount;
+-- 
+2.13.3
+
diff --git a/meta/recipes-devtools/lua/lua/lua.pc.in b/meta/recipes-devtools/lua/lua/lua.pc.in
new file mode 100644
index 0000000000..c27e86e85d
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/lua.pc.in
@@ -0,0 +1,10 @@
+prefix=/usr
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: Lua
+Description: Lua language engine
+Version: @VERSION@
+Requires:
+Libs: -L${libdir} -llua -lm -ldl
+Cflags: -I${includedir}
diff --git a/meta/recipes-devtools/lua/lua/run-ptest b/meta/recipes-devtools/lua/lua/run-ptest
new file mode 100644
index 0000000000..8e085e1af9
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua/run-ptest
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+cd test
+lua -e"_U=true" all.lua > lua-test.tmp
+
+echo "--- test output ---"
+cat lua-test.tmp
+echo ""
+echo ""
+echo "--- ptest result ---"
+
+grep "final OK \!\!\!" lua-test.tmp > /dev/null
+if [ $? -eq 0 ]; then
+   echo "PASS: lua"
+else
+   echo "FAIL: lua"
+fi
+
+rm -f lua-test.tmp
diff --git a/meta/recipes-devtools/lua/lua_5.3.6.bb b/meta/recipes-devtools/lua/lua_5.3.6.bb
new file mode 100644
index 0000000000..f830e09259
--- /dev/null
+++ b/meta/recipes-devtools/lua/lua_5.3.6.bb
@@ -0,0 +1,67 @@
+DESCRIPTION = "Lua is a powerful light-weight programming language designed \
+for extending applications."
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://doc/readme.html;beginline=318;endline=352;md5=f43d8ee6bc4df18ef8b276439cc4a153"
+HOMEPAGE = "http://www.lua.org/"
+
+SRC_URI = "http://www.lua.org/ftp/lua-${PV}.tar.gz;name=tarballsrc \
+           file://lua.pc.in \
+           file://0001-Allow-building-lua-without-readline-on-Linux.patch \
+           file://CVE-2020-15888.patch \
+           file://CVE-2020-15945.patch \
+           file://0001-Fixed-bug-barriers-cannot-be-active-during-sweep.patch \
+           "
+
+# if no test suite matches PV release of Lua exactly, download the suite for the closest Lua release.
+PV_testsuites = "5.3.4"
+
+SRC_URI += "${@bb.utils.contains('DISTRO_FEATURES', 'ptest', \
+           'http://www.lua.org/tests/lua-${PV_testsuites}-tests.tar.gz;name=tarballtest \
+            file://run-ptest \
+           ', '', d)}"
+
+SRC_URI[tarballsrc.md5sum] = "83f23dbd5230140a3770d5f54076948d"
+SRC_URI[tarballsrc.sha256sum] = "fc5fd69bb8736323f026672b1b7235da613d7177e72558893a0bdcd320466d60"
+SRC_URI[tarballtest.md5sum] = "b14fe3748c1cb2d74e3acd1943629ba3"
+SRC_URI[tarballtest.sha256sum] = "b80771238271c72565e5a1183292ef31bd7166414cd0d43a8eb79845fa7f599f"
+
+inherit pkgconfig binconfig ptest
+
+PACKAGECONFIG ??= "readline"
+PACKAGECONFIG[readline] = ",,readline"
+
+TARGET_CC_ARCH += " -fPIC ${LDFLAGS}"
+EXTRA_OEMAKE = "'CC=${CC} -fPIC' 'MYCFLAGS=${CFLAGS} -fPIC' MYLDFLAGS='${LDFLAGS}'"
+
+do_configure:prepend() {
+    sed -i -e s:/usr/local:${prefix}:g src/luaconf.h
+    sed -i -e s:lib/lua/:${baselib}/lua/:g src/luaconf.h
+}
+
+do_compile () {
+    oe_runmake ${@bb.utils.contains('PACKAGECONFIG', 'readline', 'linux', 'linux-no-readline', d)}
+}
+
+do_install () {
+    oe_runmake \
+        'INSTALL_TOP=${D}${prefix}' \
+        'INSTALL_BIN=${D}${bindir}' \
+        'INSTALL_INC=${D}${includedir}/' \
+        'INSTALL_MAN=${D}${mandir}/man1' \
+        'INSTALL_SHARE=${D}${datadir}/lua' \
+        'INSTALL_LIB=${D}${libdir}' \
+        'INSTALL_CMOD=${D}${libdir}/lua/5.3' \
+        install
+    install -d ${D}${libdir}/pkgconfig
+
+    sed -e s/@VERSION@/${PV}/ ${WORKDIR}/lua.pc.in > ${WORKDIR}/lua.pc
+    install -m 0644 ${WORKDIR}/lua.pc ${D}${libdir}/pkgconfig/
+    rmdir ${D}${datadir}/lua/5.3
+    rmdir ${D}${datadir}/lua
+}
+
+do_install_ptest () {
+        cp -R --no-dereference --preserve=mode,links -v ${WORKDIR}/lua-${PV_testsuites}-tests ${D}${PTEST_PATH}/test
+}
+
+BBCLASSEXTEND = "native nativesdk"