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Date:      Fri, 16 Feb 2024 04:00:33 GMT
From:      Warner Losh <imp@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: e34fd722cafe - main - kboot: Add our own lua bindings
Message-ID:  <202402160400.41G40XDY019293@gitrepo.freebsd.org>

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The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=e34fd722cafe8639214c72997f08b5f5faa9c21f

commit e34fd722cafe8639214c72997f08b5f5faa9c21f
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2024-02-16 03:54:55 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2024-02-16 03:59:23 +0000

    kboot: Add our own lua bindings
    
    Create a small wrapper around the new flua hash module so we can use it
    here too. There's no 4th bindings, nor will they be created.
    
    Sponsored by:           Netflix
    Differential Revision:  https://reviews.freebsd.org/D43874
---
 stand/defs.mk                    |  1 +
 stand/i386/loader/Makefile       |  2 +-
 stand/kboot/kboot/Makefile       |  7 +++++++
 stand/kboot/kboot/lua_bindings.c | 19 +++++++++++++++++++
 stand/liblua/Makefile            |  3 +++
 5 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/stand/defs.mk b/stand/defs.mk
index e8480a8c2b1e..3624b9311161 100644
--- a/stand/defs.mk
+++ b/stand/defs.mk
@@ -62,6 +62,7 @@ BINDIR?=	/boot
 # LUAPATH is where we search for and install lua scripts.
 LUAPATH?=	/boot/lua
 FLUASRC?=	${SRCTOP}/libexec/flua
+FLUALIB?=	${SRCTOP}/lib/flua
 
 LIBSA=		${BOOTOBJ}/libsa/libsa.a
 .if ${MACHINE} == "i386"
diff --git a/stand/i386/loader/Makefile b/stand/i386/loader/Makefile
index de96e1329b2f..57191b3c8f78 100644
--- a/stand/i386/loader/Makefile
+++ b/stand/i386/loader/Makefile
@@ -33,7 +33,7 @@ VERSION_FILE=	${.CURDIR}/../loader/version
 #
 # will tell you how many kiB of lomem are available.
 #
-LOADERSIZE?=	550000		# Largest known safe size for loader.bin
+LOADERSIZE?=	570000		# Largest known safe size for loader.bin
 
 .PATH:		${BOOTSRC}/i386/loader
 
diff --git a/stand/kboot/kboot/Makefile b/stand/kboot/kboot/Makefile
index 2e68a9ba9214..b571c3acada1 100644
--- a/stand/kboot/kboot/Makefile
+++ b/stand/kboot/kboot/Makefile
@@ -60,4 +60,11 @@ CFLAGS+=	-Wall
 DPADD=		${LDR_INTERP} ${LIBOFW} ${LIBSAFDT} ${LIBSA} ${LIBKBOOT}
 LDADD=		${LDR_INTERP} ${LIBOFW} ${LIBSAFDT} ${LIBSA} ${LIBKBOOT}
 
+# Add our own lua bindings until they are universal
+.if ${LOADER_INTERP} == "lua"
+SRCS+=		\
+		lua_bindings.c
+CFLAGS.lua_bindings.c+=  -I${FLUALIB}/libhash
+.endif
+
 .include <bsd.prog.mk>
diff --git a/stand/kboot/kboot/lua_bindings.c b/stand/kboot/kboot/lua_bindings.c
new file mode 100644
index 000000000000..ca5d0253c21f
--- /dev/null
+++ b/stand/kboot/kboot/lua_bindings.c
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2024 Netflix, Inc.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lutils.h"
+#include "lhash.h"
+
+static void
+lua_hash_bindings(lua_State *L)
+{
+	luaL_requiref(L, "hash", luaopen_hash, 1);
+	lua_pop(L, 1);	/* Remove lib */
+}
+
+LUA_COMPILE_SET(lua_hash_bindings);
diff --git a/stand/liblua/Makefile b/stand/liblua/Makefile
index bbfa21e07f53..b0d89bec4f02 100644
--- a/stand/liblua/Makefile
+++ b/stand/liblua/Makefile
@@ -27,6 +27,8 @@ SRCS+=	gfx_utils.c
 
 .PATH:	${FLUASRC}/modules
 SRCS+=	lfs.c
+.PATH:	${FLUALIB}/libhash
+SRCS+=	lhash.c
 
 WARNS?=	3
 
@@ -36,6 +38,7 @@ CFLAGS+= -fno-stack-protector -D__BSD_VISIBLE
 CFLAGS+= -I${BOOTSRC}/include -I${LIBLUASRC} -I${LUASRC} -I${LDRSRC}
 
 CFLAGS.gfx_utils.c+= -I${SRCTOP}/sys/teken -I${SRCTOP}/contrib/pnglite
+CFLAGS.lhash.c+= -I${FLUALIB}/libhash -I${SRCTOP}/sys/crypto/sha2
 
 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
 CFLAGS+=	-fPIC



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